JP2006120323A - Electrical apparatus, luminaire, and bulb-shaped discharge lamp lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide various kinds of electrical apparatuses such as an inverter made up of a plurality of electronic components, or a luminaire using a discharge lamp and a bulb-shaped discharge lamp lighting device that are capable of suppressing the occurrence of offensive odors from constituent elements and further preventing soil, early degradation, etc. <P>SOLUTION: The bulb-shaped discharge lamp lighting device L comprises: a discharge lamp 2 having a curved bulb 23; a lighting circuit device 3 made up of various lighting circuit components 31 electrically connected to the discharge lamp 2; a cover body 1 provided with a base 6 at one end and a dome-shaped portion 12 at the other end, the dome-shaped portion 12 housing the lighting circuit device 3 and having a holding portion for holding the discharge lamp 2; and adsorption means 7A, 7B provided inside the cover body 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting apparatus, a lighting circuit device, and a discharge lamp, each of which includes a discharge lamp attached to a casing in which various electric devices including a plurality of electronic components, a lighting circuit device, and a socket device are provided. The present invention relates to a bulb-type discharge lamp lighting device in which is integrally provided.

  Discharge lamps such as fluorescent lamps that are brighter and have a longer life than incandescent bulbs and generate less heat are well-known as high-efficiency and energy-saving light sources, but they require lighting circuit devices such as ballasts to light up. Yes.

  Generally as a lamp lighting device (lighting fixture) for illumination, a casing provided with a lighting circuit device and a socket device is attached to a ceiling surface, etc., and a discharge lamp such as a fluorescent lamp is mounted on the socket device and a lamp or the like Is covered with a translucent cover (sade) or glove.

  Also, a lighting circuit component is integrated with a discharge lamp, for example, a fluorescent lamp, and a screw-type (E-type) base is attached, and this base is directly attached to a socket device so that it is compatible with an incandescent bulb. A certain bulb-type fluorescent lamp lighting device is widely used because of its small size and energy saving.

  For example, in the fluorescent lamp constituting the bulb-type fluorescent lamp lighting device, a glass tube is bent into a substantially U shape, and a plurality of glass tubes are connected via a connecting tube to form a bulb.

  The fluorescent lamp and the lighting circuit device are attached to a holder made of a synthetic resin material via a silicone resin adhesive, and are covered with a cover body and a translucent glove.

For example, Patent Document 1 describes a photocatalyst film such as titanium oxide formed on an outer surface of such a bulb-type discharge lamp lighting device or a cover body of a lighting fixture or a globe.
Japanese Patent No. 2932993

  However, lighting fixtures and light bulb-type discharge lamp lighting devices tend to increase the temperature of the lamp device during lighting as the diameter of the glass bulb is reduced and the output is further increased. When the temperature rises, volatile gas may be generated from the silicon resin adhesive or the like.

  The present invention is not limited to discharge lamp lighting devices such as the above-described bulb-type discharge lamp lighting device and general-purpose fluorescent lamps, and in various electric devices such as an inverter composed of a plurality of electronic components, the generation of a strange odor from the constituent members. An object of the present invention is to provide a lighting apparatus and a bulb-type discharge lamp lighting device using various electric devices or discharge lamps that can be suppressed and further prevented from being contaminated and prematurely deteriorated.

  According to a first aspect of the present invention, there is provided an electrical apparatus including a circuit board on which a plurality of electronic components are mounted, a case for housing the circuit board, and a suction unit provided in the case. It is characterized by that.

  In this electrical device, even if the electronic components and circuit boards mounted by heat supply generate heat and volatile gas is generated from the resin member that constitutes it, the gas is immediately adsorbed by the adsorbing means formed in the case. As a result, it is possible to suppress the odor from being emitted to the surroundings. Moreover, since volatile gas etc. are adsorb | sucked, it is also possible to employ | adopt the member which may generate | occur | produce gas.

  For example, as an electrical device to which the present invention can be applied, an inverter configured by directly providing or connecting an electronic component including a high-frequency generating circuit component or a winding ballast to a circuit board made of phenol resin, glass epoxy resin, or the like can be given. It is done.

  In addition, this electric device can be incorporated into various electric devices for home use such as lighting, AV, hygiene, cooking and air conditioning, and industrial use such as OA, communication, medical care and electric power.

  In addition, a case that accommodates a circuit board on which electronic components are mounted is a part that forms a base (main body) part or a board part formed of a metal plate, a synthetic resin plate, etc. May be a structure in which is opened.

  In the present invention and each of the following inventions, the definitions and technical meanings of terms are as follows unless otherwise specified.

  The adsorbing means can be classified into a physical adsorbent and a chemical adsorbent. Examples of the adsorbent having a physical adsorption action include silica gel, zeolite, theolite and various activated carbons, and have an adsorption action. Further, as the adsorbent having a chemical adsorption action, there are a graft polymerization polymer, a carboxyl group derived from acrylic acid, an amino group, a sulfonic acid group, etc., and has an action of mainly adsorbing and decomposing / modifying a substance such as a volatile gas.

  The adsorbent may be formed directly on the inner surface of the case or the like, or may be disposed inside the case by forming a coating layer on a member molded separately from a metal plate or a synthetic resin plate. Alternatively, it may be placed in a mesh container as a granular material and disposed inside the above.

  The lighting fixture according to claim 2 of the present invention includes a housing having a socket device and a lighting circuit device, a discharge lamp mounted on the socket device, and a suction means provided in the housing. It is characterized by comprising.

  Even if volatile gas or the like is generated from a silicon-based resin member such as a lighting circuit device due to heat generated by lighting, this lighting fixture immediately adsorbs gas by the adsorption means formed in the housing. It is possible to suppress the odor from being diffused.

  In the present invention and each of the following inventions, the definitions and technical meanings of terms are as follows unless otherwise specified.

  The casing is a portion that forms a base (main body) part or a substrate part of an instrument formed of a metal plate or a synthetic resin plate, and is provided with a lighting device mounting portion, a lighting circuit device, a socket device, and the like. Refers to the part.

  The adsorbing means described above can be used, and the form of formation can be directly applied to the housing or the like, or the coating layer can be formed on a member molded separately from a metal plate or a synthetic resin plate. Alternatively, the granular material may be placed in a mesh container and disposed in the housing.

  Further, the present invention is not limited to the case in which the suction means is directly provided in the casing, and the lighting circuit device is accommodated in the case provided with the suction means as described in claim 1 and the interior of the casing or It may be attached to the outside. In this case, since the lighting circuit device is provided in the case, volatile gas is generated from the circuit board and electronic parts by receiving heat from lighting with little heat dissipation. It becomes easy to do.

  However, since the adsorbing means is provided in the cover body that accommodates the lighting circuit device that is the heat generation source, the same effect as the invention of claim 1 that can efficiently adsorb the generated gas can be achieved.

  The discharge lamp to which the present invention can be applied is a fluorescent lamp, an ultraviolet radiation lamp or the like. In the present invention, the discharge lamp is not limited to a visible light radiation lamp for pure illumination, but a lamp for exposure or sterilization that emits ultraviolet light. The instrument is not limited to illumination, and includes instruments applied to exposure and sterilization having substantially the same configuration as illumination.

  The glass bulb of a discharge lamp is a straight tube made of lead-free glass, a bent shape such as a U-shape or an annular shape, a flat plate shape, or a plurality of glass tubes connected to each other and formed into the above shape to form a discharge path inside. It has been done. The sealing part formed at the end of the glass bulb can adopt a form such as crushing sealing in addition to sealing using a stem such as a flare stem or a button stem provided with electrodes.

  The glass bulb is filled with a rare gas such as argon Ar, krypton Kr, xenon Xe or neon Ne, and it does not matter whether mercury is enclosed or whether a phosphor film is formed.

  The electrode is not limited to a hot cathode using a filament coil or the like, but may be a cold cathode, or an electrode may be provided on an intermediate glass tube forming a bulb.

  Moreover, the lighting fixture of this invention does not matter that a reflector, a shade, a glove, etc. are attached to the said housing | casing. The reflector, shade, and globe are formed of a metal or a synthetic resin material, and the shade or globe is a light-transmitting or non-light-transmitting member containing a lighting circuit device or a discharge lamp. It acts as a light control body such as light diffusion and light directing.

  According to a third aspect of the present invention, there is provided a bulb-type discharge lamp lighting device comprising: a discharge lamp having a bent bulb; a lighting circuit device comprising a lighting circuit component electrically connected to the discharge lamp; A cover is provided with a holding part for holding the discharge lamp on the other end side, and having a dome-shaped part that houses the lighting circuit device, and a suction means provided in the cover. It is characterized by that.

  Even if volatile gas or the like is generated from the silicon resin adhesive and the synthetic resin member of the lighting circuit device due to heat generated by the lamp lighting, this lamp device has an adsorbent layer formed on the inner surface of the cover body. Immediately adsorbed, it is possible to suppress the odor from being diffused outside the cover body.

  Further, the discharge lamp is supported by a holder as a holding portion formed of an electrically insulating heat-resistant synthetic resin material such as polybutylene terephthalate (PBT). In addition to the lamp, the holder may integrally support a lighting circuit device, a globe, or the like, or may also serve as a partition that partitions the lamp and the lighting circuit device.

  The cover body is made of an electrically insulating heat-resistant synthetic resin material such as polybutylene terephthalate (PBT), and is formed with a dome-shaped portion that houses the lighting circuit device and a cylindrical portion into which the base is inserted. A base is attached to the outer periphery. For example, the cylindrical portion has a spiral groove into which a die such as a screw type (E type) is screwed. Moreover, the shape of the dome-shaped part which covers a holder, a lighting circuit device, etc. does not ask | require.

  The lighting circuit device can incorporate the above-described high-frequency lighting method using an inverter, the lighting method using a ballast, and the like.

  The adsorbing means described above can be used, and the form of formation thereof can be directly applied to the cover body or the like by forming an application layer on a member formed separately from a metal plate or a synthetic resin plate. Alternatively, the granular material may be placed in a mesh container and disposed in the cover body.

  According to a fourth aspect of the present invention, there is provided an electrical apparatus, a lighting apparatus, or a bulb-type discharge lamp lighting device that is physically adsorbed in a relatively low temperature region of at least a part of the case, the casing, and the cover body. The adsorption means is characterized in that an adsorption means for chemical adsorption is provided in a high temperature region.

  The adsorbent that physically adsorbs can be adsorbed efficiently by providing the adsorbent in a relatively low temperature, and the adsorbent that chemically adsorbs in a relatively high temperature.

  For example, the portion of the bulb-type discharge lamp lighting device that is lit up has the highest temperature in the discharge lamp, and the temperature tends to decrease as the distance from the discharge lamp increases. Therefore, the physical adsorbent is provided on the base side of the cover body, and the chemical adsorbent is provided on the holding member side that holds the discharge lamp, whereby the amount of volatile gas or the like flowing out can be reduced.

  This is because the volatile gas emitted from the bulb-type discharge lamp lighting device tends to flow mainly from the high temperature space to the low temperature space. Therefore, when the high temperature part which is a generation source of volatile gas etc. can be specified, it is desirable to provide a chemical adsorbent in the vicinity of the generation source and a physical adsorbent in the low temperature part.

  Similarly, in a case where a lighting circuit device is provided through a case or the like in a casing, an adsorbent that is chemically adsorbed is provided in the vicinity of a high-temperature electronic component or a region located on the discharge lamp side. An adsorbent that physically adsorbs is provided in a further low temperature region.

  According to a fifth aspect of the present invention, there is provided an electric device, a lighting fixture, or a bulb-type discharge lamp lighting device, wherein a photocatalytic film is provided on at least a part of the circuit board, the case, the discharge lamp, the lighting circuit device, the housing, and the cover body. It is characterized by being provided.

  In the present invention, since the photocatalyst film is formed on the constituent members of the electric device, the lighting fixture or the bulb-type discharge lamp lighting device, the adsorbing means and the photocatalyst film act in cooperation with each other in the above claims 1 to 4. Has the same effect as described.

  The photocatalyst film is normally decomposed by photocatalytic activity by receiving visible light from a discharge lamp or the like. Like the bulb-type discharge lamp lighting device, the space inside the cover is photocatalytically activated by ultraviolet rays emitted from the end of the bulb held in the cover.

  And, as described in the background art, the present invention forms a photocatalytic film on the surface of a globe, shade, or cover body to illuminate volatile gas generated during lighting in addition to the effects of claims 1 to 4. It is possible to further suppress the diffusion outside the appliance and the lighting device. Furthermore, it is possible to prevent the cover body, the shade, the glove, and the like from being dirty.

  In the present invention, the photocatalytic film may be formed on the surface of a discharge lamp bulb or the like in addition to a housing, a reflector, a cover including a holder, a lighting circuit device, a globe, and the like.

  The photocatalytic film material formed on at least a part of the inner and outer surfaces of the cover body, for example, is a powder of titanium dioxide or a mixture of titanium dioxide and activated carbon (average particle diameter of about 0.01 to 5 μm) made of acrylic resin, Adhesives made with organic binders such as alkyd melamine resins, vinyl acetate resins, fluorine resins, silicone resins, epoxy resins and ultraviolet (UV) curable resins are made. Is applied to the member by means such as spray coating or dip coating, dried and heat-treated to form a film thickness of about 0.1 to 30 μm.

  According to a sixth aspect of the present invention, there is provided an electric device, a lighting fixture or a bulb-type discharge lamp lighting device, wherein an ultraviolet absorbing film or an ultraviolet reflecting film is formed on at least a part of the surface of the constituent member.

  Due to the action of the catalyst of the photocatalyst film, the synthetic resin surface of the case, casing, cover body, member such as shade or glove on which the photocatalyst film is formed may be decomposed or peeling phenomenon may occur. By forming an ultraviolet absorbing film or an ultraviolet reflecting film corresponding to a wavelength of 300 to 400 nm on the surface of the resin member, it is possible to prevent the ultraviolet degradation of the synthetic resin member.

  According to the first aspect of the present invention, even if volatile gas or the like is generated from a circuit device or the like due to heat generated by energization, the gas is immediately adsorbed by the adsorbing means formed in the case. It is possible to provide an electrical device in which emission is suppressed.

  According to the second aspect of the present invention, even if volatile gas or the like is generated from the lighting circuit device or the like due to heat generated by lighting, the gas is immediately adsorbed by the adsorbing means formed in the casing or case. In addition, it is possible to provide a lighting apparatus in which the odor is prevented from being diffused.

  According to the third aspect of the present invention, the bulb-type discharge lamp lighting device in which the lamp and the lighting circuit device are integrated has the same effects as the first and second aspects.

  According to the fourth aspect of the present invention, by arranging the adsorbent according to the temperature condition, the electric device, the lighting apparatus, or the light bulb-shaped discharge that has the same effect as the first to third aspects can be obtained. A lamp lighting device can be provided.

  According to the fifth aspect of the present invention, by further forming a photocatalytic film on the constituent members according to the first to fourth aspects, maintenance and the like can be easily performed in order to prevent the emission of a strange odor and the contamination of the outer appearance of the member. An electric device, a lighting fixture, or a bulb-type discharge lamp lighting device can be provided.

  According to the sixth aspect of the present invention, the synthetic resin member can be prevented from being irradiated with ultraviolet rays to prevent the deterioration of the ultraviolet rays, the life can be extended, and the same as the first to fifth aspects. It is possible to provide an electric device, a lighting fixture, or a bulb-type discharge lamp lighting device that has an effect.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial cross-sectional front view of a bulb-type discharge lamp lighting device.

  In the figure, reference numeral 1 denotes a cover body. The cover body 1 has a cylindrical portion 11 to which a base 7 is attached on the base end side and a dome-shaped portion 12 on the other end side. In addition, a holder 5 is disposed in the dome-shaped portion 12 to support the end portion of the bent discharge lamp 2 and to which the lighting circuit device 3 and the globe 4 of the lamp 2 are attached.

  The cover body 1 is formed of an electrically insulating heat-resistant synthetic resin material such as PBT resin, and the cylindrical portion 11 on the base end side has an outer diameter that is substantially the same as the inner diameter of the shell 61 of the base 6, and a base insertion portion A base 6 such as an E-type is screwed and fixed to the outer periphery. Reference numeral 62 denotes an eyelet terminal provided via an insulating portion 63.

  The discharge lamp 2 has three glass tubes 21 made of lead-free glass bent in a substantially U shape and having an outer diameter of about 9 to 15 mm and a thickness of about 0.8 to 1.2 mm, and a connecting tube 22 here. ,... Are connected in the same circumferential shape to form a single bent discharge path 23. Electrodes (not shown) made of filament coils are provided at both ends of the glass tube 21 at both ends of the bulb 23. In addition, a phosphor film (not shown) is formed on the inner surface of the glass tube bulb 23, and a rare gas such as mercury and argon is sealed therein as a discharge medium.

  In addition, the bulb 23 of the discharge lamp 2 is formed by arranging a plurality of glass tubes connected to each other on the same circumference via a communication tube, or by making a substantially U-shaped glass tube into a substantially U-shape. One discharge path may be formed by a bent glass tube, such as a spiral bulb that is bent or at least partially has a spiral portion.

  Further, a holder 5 as a holding portion formed in a disc shape with a PBT resin material or the like is fixed to the opening portion 13 of the dome-shaped portion 12 of the cover body 1 by means such as fitting. The end portions of the valves 23 are inserted into loose holes (not shown) formed in the shelf 51 below the holder 5, and are joined and fixed via a thermosetting adhesive such as silicon. Yes.

  Further, a circuit board 32 on which circuit components 31,... For high frequency lighting using a transistor inverter, for example, constituting the lighting circuit device 3 are locked to the holder 5, and a discharge lamp is mounted on the circuit board 32. Two external lead wires (not shown) are electrically connected. Further, a wiring or an external lead wire (not shown) derived from the lighting circuit device 3 is connected to the shell 61 and the eyelet terminal 62 of the base 6.

  In addition, a globe 4 formed in a mold having one end opened with a light diffusing glass or a synthetic resin material and a tip having a substantially hemispherical shape covers the discharge lamp 2 composed of a plurality of glass tubes 21. Is provided. The globe 4 inserts the tip of the opening 41 into an annular portion between the inner wall of the opening 13 of the dome-shaped portion 12 of the cover body 1 and the outer periphery of the holder 5 fitted in the opening 13, and into the gap. It is fixed by filling and joining a thermosetting adhesive 42 such as a silicon-based adhesive, or by fitting uneven portions (not shown) formed on both.

  An adsorbent layer 7A made of, for example, silica gel is provided from the cylindrical portion 11 on the base end side of the cover body 1 to the inner peripheral surface of the dome-shaped portion 12. Further, an adsorbent layer 7B made of a graft polymer is formed on the surface of the holder 5.

  Further, for example, an adhesive made by suspending titanium dioxide powder in an acrylic resin solution is applied to the surface of the cover body 1 and the globe 4 by means such as spray coating or dip coating, and is solidified by drying and heat treatment, thereby photocatalyst. A film 8 is formed. The film thickness formed at this time is about 0.1 to 30 μm.

  The bulb-type discharge lamp lighting device L configured as described above is performed by grasping the globe 4 and screwing the base 6 into the spiral groove of the socket device receptacle, and applying a normal rated voltage. Can be lit.

  The bulb-type discharge lamp lighting device L can be used even if volatile gas is generated from a new electronic component 31 or a silicon resin adhesive of the lighting circuit device 3 due to heat generated by lighting. The adsorbent layer 7B formed on the surface is adsorbed instantaneously. Furthermore, although volatile gas generated from other flows to the low temperature space side, it is adsorbed by the adsorbent layer 7 </ b> A formed in the cover body 1, so that it does not diffuse out of the cover body 1.

  In addition, even if volatile gas is generated due to the temperature rise of each part as the lamp lighting device L is turned on, the adsorbent layers 7A and 7B immediately adsorb this gas and decompose it into other components. Even if an organic compound is generated, it is prevented from being released to the outside.

  Further, the action of the photocatalyst film 8 formed on the surface of the cover body 5 and the globe 4 decomposes the adhered matter such as organic matter attached to the surface of the globe 4 and the cover body 1 to prevent dirt and to sterilize and deodorize. .

  That is, the two kinds of adsorbent layers 7A and 7B are composed of a silica gel having a physical adsorption function mainly composed of deodorizing and the like, and a graft polymerized polymer mainly performing a chemical adsorption function mainly composed of adsorptive decomposition. Graft polymerized polymer works instantaneously, and silica gel works mainly in the long term. Further, at this time, the photocatalyst film 8 is also activated by receiving near ultraviolet rays of 300 to 400 nm from the discharge lamp L, sunlight, etc., and these adsorbent layers 7A and 7B and the photocatalyst film 8 oxidize volatile gases, organic substances, and nitrogen. Since it is possible to oxidize and decompose substances, chlorine compounds, etc., environmental safety can be improved.

  In the present embodiment, the adsorbent layers 7A and 7B and the photocatalyst film 8 are provided in the above embodiment. However, even if only the adsorbent layers 7A and 7B are provided alone, the volatile gas is adsorbed and decomposed.

  In the above embodiment, the adsorbent layers 7A and 7B are provided in different places with different temperature conditions. However, even if two kinds of adsorbent layers 7A and 7B are stacked and further provided with the photocatalyst film 8 thereon, the adsorbent layers 7A and 7B are adsorbed. The adsorbent layers 7A and 7B are separately provided, for example, near the cylindrical portion 11 where the temperature rise is lower than that of the dome-shaped portion 12, and the adsorbent layer 7A having a physical adsorption action is disposed near the dome-shaped portion 12, and the adsorbent having a chemical adsorption action near the dome-shaped portion 12. The layer 7B may be provided. Further, the photocatalytic film 8 may be formed on the adsorbent layers 7A and 7B.

  In addition, the adsorbent is not limited to the layer coated on the inner peripheral surface of the cover 1, but is disposed on the cover 1 by being layered on a molded body such as a metal plate or a synthetic resin, or in the form of particles or pellets for air permeability. Even if it is placed in the container 1 and placed in the cover 1, the same effects as described in the above embodiment are exhibited.

  Moreover, the part which forms the photocatalyst film | membrane 8 may be the cover body 1, the globe 4, the holder 5, the electronic component 31 of the lighting circuit device 3, the bulb 23 of the discharge lamp, or the like.

  In the present invention, the adsorbents 7A and 7B and the photocatalyst film 8 suppress the material such as volatile gas generated inside the cover 1 from being immediately adsorbed and decomposed and dissipated to the outside. The dirt can be decomposed to prevent fouling and to have a deodorizing and sterilizing action.

In the present invention, when the globe 4, the cover body 1, the holder 5, the circuit board 32 of the lighting circuit device 3, etc. are formed of a synthetic resin material, TiO ₂ , Ce ₃ O ₂ , ZrO are formed on the synthetic resin surface. After the formation of an inorganic ultraviolet absorbing film such as Al, O ₂ , ZrO ₂ or the like, or an ultraviolet reflecting film such as Al ₂ O ₃ , Y ₂ O ₃ or SiO ₂ , the photocatalytic film 8 may be formed on this film.

  The photocatalyst film 8 may decompose the synthetic resin surface of the member or cause a peeling phenomenon due to the action of the catalyst. As a countermeasure, the ultraviolet absorbing film 8 can be formed on the surface of the synthetic resin member. In this case, ultraviolet radiation to the synthetic resin member can be suppressed to prevent ultraviolet degradation of the synthetic resin member.

  The discharge lamp lighting device L can be appropriately used by being mounted on a general-purpose socket device such as a lighting device used for lighting a light bulb or the like depending on the type of the attached base. It is not limited.

  2 and 3 show another embodiment of the lamp lighting device of the present invention. 2 is a front view of a lighting device L1 for a straight tube discharge lamp, and FIG. 3 is a partial cross-sectional front view of the lighting device L2 for a ring discharge lamp. In FIG. 2, the same parts as those in FIG. The description thereof is omitted.

  The lighting device L1 of FIG. 2 is provided with socket devices 92, 92 to which the straight tube discharge lamp 2 is mounted near both ends of the bottom surface of the rectangular tubular casing 91 that forms the base body. A case 90 that houses a lighting circuit device (not shown) formed of an inverter connected to the socket devices 92 and 92 is disposed.

  Then, at least one of the adsorbents 7A and 7B is provided by being layered on the inner surface of the case 90 in which the lighting circuit device (not shown) is accommodated or in a mesh container disposed inside. is there.

  3 is provided with a case 90 that houses a lighting circuit device (not shown) made of an inverter in the upper part of a non-translucent casing 91, and a supply that is led out from the case 90 is provided. The socket device 92 at the end of the electric wire is connected by being inserted into the base 6 of the annular discharge lamp 23. In the figure, 93 is a shade provided in the opening of the casing 91, and 94,... Are support members of the annular discharge lamp 2.

  In the case of the lighting device L2, at least one of the adsorbents 7A and 7B is layered on the inner surface of the case 90 housing the lighting circuit device (not shown) or in a mesh container disposed inside. It is provided by housing.

  In the case of the lighting devices L1 and L2, even when the discharge lamp 2 connected to the socket device 92 is turned on via the lighting circuit device, even if volatile gas or the like is generated from the electronic components in the case 90, it is adsorbed. The agent 7A or / and 7B immediately adsorbs and decomposes volatile substances and suppresses them to dissipate to the outside of the case 90, decomposes dirt caused by organic substances adhering to the surface of the member to prevent fouling, and has a deodorizing and sterilizing action. Can be done.

  2 and 3, when two types of adsorbents 7A and 7B are provided, the adsorbent 7B is provided on the high temperature side such as the case 90, and the casing outside the case 90. For example, the adsorbent 7A may be provided in the low temperature part in 91 parts. In this embodiment, the photocatalyst film 8 and the ultraviolet absorbing film or the ultraviolet reflecting film may be provided on a part of the members constituting the lighting device.

  Although the present invention has been described with respect to the lighting fixture and the bulb-type discharge lamp lighting device in the above embodiment, the present invention is not limited to those described. For example, the present invention may be applied to an electric device such as an inverter configured by mounting a plurality of electronic components on a circuit board, and in that case, the same effect can be obtained.

  Further, the present invention provides the above-mentioned lighting apparatus and bulb-type discharge lamp lighting device, wherein the configuration and shape of, for example, a casing supporting the lamp and the lighting circuit device, a cover body including a holder, a glove or a mutual member engaging means Various modifications may be made in accordance with the shape and the parts to be incorporated. Further, in a lamp lighting device with a high temperature rise, a heat radiating air hole may be formed in a cover body or a case.

  Further, the glove is not essential, and a device in which a discharge lamp without glove is exposed may be used.

It is a partial cross section front view which shows the lightbulb type discharge lamp lighting device of embodiment of this invention. It is a front view which shows the lighting fixture using the straight tube | pipe discharge lamp of other embodiment of this invention. It is a partial cross section front view which shows the lighting fixture using the annular discharge lamp of other embodiment of this invention.

Explanation of symbols

  L: Light bulb shaped discharge lamp lighting device, L1: Lighting fixture (straight tube type discharge lamp lighting fixture), L2: Lighting fixture (annular discharge lamp lighting device), 1,90: Cover body, 11: Cylindrical part, 12: Dome-shaped part, 2: discharge lamp, 21: glass tube, 23: bulb, 3: lighting circuit device, 4: globe, 5: holder, 6: base, 7A, 7B: adsorbent, 8: photocatalytic film, 90: Case,

Claims (6)

A circuit board on which a plurality of electronic components are mounted;
A case for housing the circuit board;
Adsorption means provided in the case;
An electrical apparatus comprising: A housing having a socket device and provided with a lighting circuit device;
With a discharge lamp mounted on the socket device:
Suction means provided in the housing;
The lighting fixture characterized by comprising. A discharge lamp having a bent bulb;
A lighting circuit device composed of a lighting circuit component electrically connected to the discharge lamp;
A cover body having a cap provided on one end side, a holding portion holding a discharge lamp on the other end side, and having a dome-shaped portion containing a lighting circuit device;
Adsorption means provided in the cover body;
A bulb-type discharge lamp lighting device comprising:   At least a part of the case, casing, or cover body is provided with an adsorption unit that physically adsorbs in a relatively low temperature region, and an adsorption unit that performs chemical adsorption in a high temperature region. The electric device, the lighting fixture or the bulb-type discharge lamp lighting device according to any one of claims 1 to 3.   5. The electrical apparatus according to claim 1, wherein a photocatalytic film is provided on at least a part of the circuit board, the case, the discharge lamp, the lighting circuit device, the housing, and the cover body. , Lighting equipment or bulb-type discharge lamp lighting device.   6. The electric apparatus, lighting apparatus or bulb-type discharge lamp lighting device according to claim 1, wherein an ultraviolet absorbing film or an ultraviolet reflecting film is formed on at least a part of the surface of the constituent member.

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