JP4534203B2 - Fluorescent lamp device and lighting apparatus - Google Patents

Description

  The present invention relates to a fluorescent lamp device having a bent bulb and integrally containing a lighting circuit, and a lighting fixture including the fluorescent lamp device.

  Single-ended fluorescent lamps are used in lighting fixtures such as downlights embedded in high ceilings of commercial facilities and offices, brackets provided on wall surfaces, etc. For example, a pair of connection pins is provided on one end side of a base. A compact fluorescent lamp having a bent bulb formed on the other end side, for example in a U-shape, is attached. In this single-ended fluorescent lamp, a pair of connection pins are inserted into a socket provided in the luminaire body.

  And a single-piece | mold metal-type fluorescent lamp is normally lighted by supplying electric power through a nozzle | cap | die from the lighting device (lighting circuit) provided in the lighting fixture main body (for example, refer patent document 1). In addition, there is known one in which a starter for forming a kick voltage is accommodated inside a cover (base body) of a single-ended fluorescent lamp (see, for example, Patent Document 2).

In addition, there has been proposed a single-ended fluorescent lamp in which a lighting circuit for lighting a fluorescent lamp is housed in a base formed in a flat shape that is wide in the direction in which bulb ends are arranged in parallel (see, for example, Patent Document 3). .
JP 2003-217506 A (page 3, FIG. 1) Japanese translation of PCT publication No. 2003-528430 (page 8, FIG. 2) Japanese Patent Laid-Open No. 6-283139 (page 3, FIG. 3)

  In Patent Literature 1 and Patent Literature 2, the lighting circuit is attached to the lighting fixture main body separately from the single-ended fluorescent lamp. Therefore, it is necessary to design an accessory such as a case in which the lighting circuit is stored in the lighting fixture, and there is a disadvantage that the lighting fixture is increased in cost while being reduced in thickness and size.

  In addition, the single-ended fluorescent lamp disclosed in Patent Document 3 has a connection terminal provided on the wide cover surface side, and a socket is connected to the connection terminal. It is necessary to provide an arrangement space for the terminals, and there is a drawback that the size and thickness of the single-piece type fluorescent lamp are hindered by increasing the size of the cover.

  It is an object of the present invention to provide a fluorescent lamp device that makes it possible to easily design miniaturization and thinning of a lighting fixture and reduce the cost, and a lighting fixture in which the fluorescent lamp device is disposed. .

  The fluorescent lamp device according to claim 1 includes a fluorescent lamp having a bulb bent so that a pair of electrodes sealed at both ends are in the same direction and a discharge path meanders in substantially the same plane; A base that is formed in a flat shape that is wide in the juxtaposed direction and has a support part that supports both ends of the bulb of the fluorescent lamp, and a pair of connection terminals for power feeding on both side faces facing the juxtaposed direction; A lighting circuit that is housed inside and that illuminates the fluorescent lamp at a high frequency by supplying power to the pair of connection terminals.

  In the present invention and each of the following inventions, unless otherwise specified, details of each component and definition of terms are based on the following description.

  The bent valve includes not only the so-called bridge-type or molded-type valve in which the straight-tube valves are connected to each other at the ends, but also the bent valve by heating and softening the straight-tube valve. Is done. In the bent bulb, one or a plurality of discharge folded portions are formed, and a pair of electrodes are sealed in the same direction at both ends. Further, a phosphor layer is formed on the inner surface, and a discharge medium is enclosed inside. The phosphor layer may be formed directly on the inner surface of the bent bulb, or may be indirectly formed through an intermediate coating such as a protective film made of alumina fine particles. The discharge medium contains mercury and a rare gas, and as the rare gas, argon, neon, or the like can be used. Mercury can be enclosed in the form of zinc amalgam whose vapor pressure characteristics are close to pure mercury, but amalgam for the purpose of mercury vapor pressure control such as bismuth-indium whose vapor pressure characteristics are lower than pure mercury. Can also be used.

  The lighting circuit for lighting the fluorescent lamp of the present invention is housed in the base of the fluorescent lamp device. Therefore, since the lighting fixture to which the fluorescent lamp device of the present invention is attached does not require attachment of a lighting circuit and its case, the cost of the fixture is reduced and the installation space is not required. Can be made smaller or thinner.

  According to the present invention, in the fluorescent lamp device, since the base is formed in a flat shape that is wide in the direction in which the bulb end portions are arranged, the fluorescent lamp device is thinned and in the direction in which the bulb end portions are arranged in parallel. Since the pair of connection terminals are provided on both side surfaces of the opposing base body, the entire length of the bulb in the projecting direction from the base body is shortened, and the entire fluorescent lamp device is miniaturized.

A fluorescent lamp device according to claim 2, comprising: a fluorescent lamp having a bulb bent so that a pair of electrodes sealed at both ends are in the same direction and a discharge path meanders in substantially the same plane; Are formed in a flat shape that is wide in the juxtaposed direction, and a support portion that supports both ends of the bulb of the fluorescent lamp, and a pair of power supplies provided at a predetermined interval on a portion opposite to the portion of the support portion A base body having a convex portion in which a housing space is formed between the connection terminal and the pair of connection terminals; and disposed inside the base body so as to be substantially parallel to the parallel arrangement direction of the valve end portions. A circuit board, a plurality of electronic components mounted in a direction standing upright from the circuit board surface, and an electrolytic capacitor for smoothing a voltage obtained by rectifying an AC voltage connected to the circuit board and accommodated in the accommodating space of the convex portion , a pair of connection terminals Characterized in that it comprises a; by rectifying and smoothing an AC voltage input and is converted into a high frequency voltage to the fluorescent lamp and lighting circuit to high frequency lighting.

  According to the present invention, by accommodating an electronic component having relatively low heat resistance in the accommodating space of the convex portion, the electronic component is less affected by the heat of the fluorescent lamp by being separated from the fluorescent lamp. In addition, since the outer surface area of the substrate is increased by the amount of the protrusions, the heat dissipation effect is improved. As a result, thermal destruction of the lighting circuit is suppressed, and the life of the lighting circuit is extended. In addition, by arranging an electronic component such as an electrolytic capacitor having a large overall length in the convex housing space, it becomes easy to secure a space for accommodating other electronic components in the remaining housing space of the base, and the base is made to be a valve. It becomes easy to form a flat shape that is wide in the direction in which the end portions are arranged side by side, and the fluorescent lamp device is thinned.

  According to the present invention, the circuit board is disposed inside the base body so as to be substantially parallel to the juxtaposed direction of the valve end portions, so that the electronic component protrudes in an upright direction from the circuit board surface. By selecting the electronic component to be used so that the protruding length of the electronic component from the substrate is within the predetermined height, the dimension (height) in the direction perpendicular to the width direction of the base is reduced, and the base is thinned. Thus, the fluorescent lamp device is thinned.

According to a third aspect of the present invention, there is provided a lighting fixture comprising: the fluorescent lamp device according to the first or second aspect ; a socket to which a pair of connection terminals can be attached and detached; and a socket, in which the fluorescent lamp device is mounted. And a lighting fixture main body.

According to this invention, the lighting fixture provided with the fluorescent lamp apparatus of Claim 1 or 2 is provided.

  According to the first aspect of the present invention, the base is formed in a flat shape that is wide in the direction in which the bulb ends are arranged in parallel, and has a pair of connection terminals on both side surfaces facing the direction in which the bulb ends are arranged in parallel. The lamp device can be made thinner and smaller. And since the lighting circuit is provided in the fluorescent lamp device, it becomes easy to design the lighting fixture, the lighting fixture can be made thinner and smaller, and the cost of the lighting fixture can be reduced.

  According to the second aspect of the present invention, an electronic component having a relatively low heat resistance is accommodated in the accommodating space of the convex portion, and the thermal stress of the electronic component is suppressed, whereby the lighting circuit is used until the fluorescent lamp reaches the end of its life. Can be operated normally. In addition, the fluorescent lamp device itself can be thinned by arranging electronic parts having a large overall length, such as an electrolytic capacitor, in the accommodating space of the convex portion and thinning the base. And since the lighting circuit is provided in the fluorescent lamp device, it becomes easy to design the lighting fixture, the lighting fixture can be made thinner and smaller, and the cost of the lighting fixture can be reduced.

In addition, since the circuit board is disposed inside the base body so as to be substantially parallel to the direction in which the bulb ends are arranged in parallel, the dimension (height) in the direction orthogonal to the width direction of the base body is reduced. The lamp device can be thinned. Thereby, the lighting fixture in which the fluorescent lamp device is disposed can be designed to be thin.

According to invention of Claim 3, the lighting fixture provided with the fluorescent lamp apparatus of Claim 1 or 2 can be provided.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described.

  1 and 2 show a first embodiment of the present invention. FIG. 1 (a) is a partially cutaway schematic front view of a fluorescent lamp device, and FIG. 1 (b) is a partially cutaway schematic side view. FIG. 2 is a circuit diagram of the lighting circuit.

  The fluorescent lamp device 1 includes a fluorescent lamp 2, a base 3, and a lighting circuit 4.

  In the fluorescent lamp 2, filament electrodes 6 and 6 as a pair of electrodes are respectively connected to flare stems 7 and 7 at both ends 5a and 5b of a bulb 5 in which one straight tube bulb is bent in a substantially U-shape with the same plane. It is sealed. That is, the bulb 5 is bent so that the pair of filament electrodes 6 and 6 sealed at both ends 5a and 5b are in the same direction, and the discharge paths between the filament electrodes 6 and 6 meander in substantially the same plane. .

For example, a phosphor layer 9 of a three-wavelength emission type is formed on the inner surface of the bulb 5 via a protective film 8 made of alumina (Al ₂ O ₃ ) fine particles, and argon gas 320 Pa (pascal) as mercury and a rare gas is formed inside. ) Is enclosed. The bulb 5 is made of, for example, a soda lime glass tube having a tube outer diameter of 17.5 mm and a wall thickness of 1.1 mm.

  In addition to the filament electrodes 6, 6, exhaust tubules 10, 10 are attached to the flare stems 7, 7 sealed at both ends 5 a, 5 b of the valve 5. The thin tubes 10 and 10 communicate with the inside of the valve 5 and are provided so as to protrude outward from both ends 5a and 5b of the valve 5, respectively, and contain zinc amalgam (Zn-Hg) (not shown) inside. . The narrow tubes 10 and 10 are formed by chipping off after exhausting the bulb 5, enclosing a discharge medium, and containing zinc amalgam (Zn-Hg). Further, the diameters of the thin tubes 10 and 10 are reduced so that the zinc amalgam is held therein. The thin tubes 10 and 10 are formed to have a tube outer diameter of 4.3 mm and a wall thickness of 0.7 mm, for example.

  A pair of lead wires 11 and 11 penetrates the flare stems 7 and 7 in an airtight manner, and the lead wires 11 and 11 are led out from both ends 5a and 5b of the valve 5, respectively. The pair of lead-in wires 11 and 11 are each composed of inner wells, jumet wires and outer wells (not shown), and the filament electrode 6 is supported between the tips of the pair of inner wells.

  The base 3 is made of, for example, polybutylene terephthalate (PBT) resin, and has a substantially rectangular parallelepiped main body portion 12 whose outer surface has a wide and flat shape in the direction A in which the bulb end portions 5a and 5b of the fluorescent lamp 2 are arranged. Yes. A pair of pin-like connection terminals 13, 13 are attached to the main body 12, and a substantially box-shaped convex part 14 is formed between the connection terminals 13, 13 so as to protrude outward. A housing space in which some electronic components of the lighting circuit 4 can be placed is formed in the convex portion 14.

  Then, both end sides 5a and 5b of the valve 5 are inserted into the pair of insertion holes formed in the upper surface portion 12a as the support portion of the main body portion 12 for a predetermined length. The insertion hole is formed to have a diameter of 18.5 to 19.0 mm, which is a value somewhat larger than the tube outer diameter of 17.5 mm of the bulb 5.

  And the heat resistant adhesive material 15 is apply | coated to the insertion hole and its circumference | surroundings in the state which the both ends 5a and 5b of the valve | bulb 5 were inserted in the insertion hole. Thereby, both end sides 5 a and 5 b of the valve 5 are fixed to the upper surface portion 12 a of the main body portion 12 by the adhesive 15. That is, the upper surface portion 12 a of the main body portion 12 constitutes a support portion that supports the bulb both ends 5 a and 5 b of the fluorescent lamp 2.

  Further, the base 3 has predetermined connection pins 13 and 13 serving as a pair of connection terminals for power feeding so as to protrude outwardly on a lower surface portion 12b located on a side opposite to the support portion of the main body portion 12. Are provided at intervals. The connection pins 13 and 13 are inserted into the socket and input external power from the socket.

  Further, the base 3 accommodates the lighting circuit 4 therein. The lighting circuit 4 is formed by mounting electronic components or the like on a circuit board 16 made of, for example, a glass epoxy material. The circuit board 16 is fixed to the inner wall of the main body 12 by a support member (not shown).

  And the circuit board 16 is arrange | positioned in the main-body part 12 so that it may become substantially parallel to the parallel arrangement direction A of valve | bulb edge part 5a, 5b. In the accommodation space of the convex portion 14, an electrolytic capacitor C1 having a large overall length (length dimension) is accommodated. This secures a space for mounting other electronic components and the like of the lighting circuit 4 on the circuit board 16 in the housing space of the main body 12, and reduces the protruding length of the electronic components and the like from the circuit board 16. Thus, the dimension perpendicular to the juxtaposed direction A of the bulb end portions 5a and 5b of the main body portion 12 is reduced, and the base body 3, that is, the fluorescent lamp device 1 is reduced in size and thickness. Moreover, since the convex part 14 is a site | part spaced apart from the fluorescent lamp 2, the electrolytic capacitor C1 with a comparatively low heat-resistant temperature is employable.

  The electrolytic capacitor C <b> 1 has the lead connected to the circuit board 16. Further, the pair of connection pins 13 and 13 are connected to the input portion of the circuit board 16 through the wire 17. A pair of lead-in wires 11 and 11 led out from the valve end portions 5 a and 5 b are connected to the output portion of the circuit board 16 through the power supply terminal 18.

  As shown in FIG. 2, the lighting circuit 4 includes a rectifying / smoothing circuit 20 including a rectifier REC1 and an electrolytic capacitor C1 connected to power supply terminals 19 and 19 of a socket to which an AC power is supplied. Is connected to the inverter circuit 21 in which the field effect transistor FET1 and the field effect transistor FET2 are connected to each other in a half-bridge form. A resonance circuit 22 composed of a series circuit of a capacitor C3 is connected.

  The current limiting inductor L1 is provided with secondary windings L1b and L1c. The ends of the secondary windings L1b and L1c are connected between the ends of the filament electrodes 6 and 6 of the fluorescent lamp 2 via the power supply 18 and the lead-in wire 11, respectively. The fluorescent lamp 2 is connected to the lighting circuit 4 so that the power supply side terminals of the filament electrodes 6 and 6 are connected in parallel to the resonance capacitor C3.

  The gates (control terminals) of the field effect transistors FET 1 and FET 2 of the inverter circuit 21 are connected to the drive circuit 23. The drive circuit 23 is connected to the control circuit 24. When a control signal for controlling the switching operation of the field effect transistors FET1 and FET2 is input from the control circuit 24, the drive circuit 23 applies a drive voltage of a predetermined frequency to the gates of the field effect transistors FET1 and FET2, thereby causing the field effect. The transistors FET1 and FET2 are switched. As a result, the resonance current from the primary winding L1a of the current limiting inductor L1 and the resonance capacitor C3 flows to the primary winding L1a of the current limiting inductor L1, and a resonance voltage is generated between both ends of the resonance capacitor C3.

  When the field effect transistors FET1 and FET2 perform the switching operation, a resonance current flows bidirectionally in the primary winding L1a of the current limiting inductor L1, and an alternating current is generated between both ends of the secondary windings L1b and L1c. A preheating voltage is generated and applied to each filament electrode 6, 6 of the fluorescent lamp 2. The filament electrodes 6 and 6 are preheated with a preheating current. That is, the filament electrodes 6 and 6 are always preheated.

  Then, the resonance voltage of the resonance circuit 22 is applied between the pair of filament electrodes 6 and 6, a discharge is formed between the filament electrodes 6 and 6, and the fluorescent lamp 2 is turned on. The resistance value of the filament electrodes 6 and 6 and the number of turns of the secondary windings L1b and L1c of the current limiting inductor L1 are set such that a predetermined preheating current flows through the filament electrodes 6 and 6 when the fluorescent lamp 2 is rated on. A ratio or the like is set in advance.

  The control circuit 24 sends a control signal for alternately switching the field effect transistors FET1 and FET2 at a predetermined frequency to the drive circuit 23 when the fluorescent lamp 2 is preheated, started, and lit, and the drive circuit 23 controls the control signal. The field effect transistors FET1 and FET2 are switched according to the signal.

  In the fluorescent lamp device 1, a pair of connection pins 13 and 13 are supplied with power through a socket. Then, the lighting circuit 4 turns on the fluorescent lamp 2 at a high frequency.

  As described above, in the fluorescent lamp device 1, the electrolytic capacitor C <b> 1 having a large overall length is disposed in the accommodating space of the convex portion 14 of the base 3, so that other electronic components are accommodated in the accommodating space of the main body portion 12. It becomes easy. Further, since the protruding length of the electronic component from the circuit board 16 can be reduced, the base 3 is reduced in size and thickness, and as a result, the fluorescent lamp device 1 is reduced in size and thickness. Further, by disposing the electrolytic capacitor C1 having a relatively low heat resistance in the accommodating space of the convex portion 14, thermal destruction of the electronic components and the like of the lighting circuit 4 is suppressed, so that the lighting circuit 4 is thermally deteriorated. It is suppressed.

  Further, in the fluorescent lamp device 1, since the base 3 includes the lighting circuit 4, the lighting fixture in which the fluorescent lamp device 1 is disposed does not need to be attached with the lighting circuit 4 and its accessories. As a result, the lighting fixture can be reduced in size and reduced in size. When the fluorescent lamp device 1 is arranged so as to be substantially horizontal, the base 3 is provided with the circuit board 16 so as to be substantially parallel to the juxtaposition direction A of the bulb ends 5a, 5b. Since the bulb ends 5a and 5b are formed so as to have a wide and flat shape in the direction A in which the bulb ends 5a and 5b are arranged side by side, the lighting fixture can be made thin.

  Next, a second embodiment of the present invention will be described.

  3A and 3B show a fluorescent lamp device according to a second embodiment of the present invention, in which FIG. 3A is a partially cut schematic front view, and FIG. 3B is a partially cut schematic side view. Note that the same parts as those in FIG.

  The fluorescent lamp device 25 shown in FIG. 3 is the same as the fluorescent lamp device 1 shown in FIG. The electrolytic capacitor C <b> 1 is mounted along the portion of the circuit board 16 on the lower surface portion 12 b side of the main body portion 12. Further, instead of the pair of connection pins 13 and 13, a pair of connection terminals 26 and 26 for power feeding are respectively disposed on the side surfaces 12c and 12c facing the parallel direction A of the valve end portions 5a and 5b. is there. The connection terminal 26 is made of, for example, a flat copper plate and is connected to the input portion of the circuit board 16 via the wire 17.

  As shown in FIG. 3A, the fluorescent lamp device 25 has the base 3 inserted into a socket 27. When the lower surface portion 12 b of the main body portion 12 is inserted up to the bottom surface 27 a of the socket 27, the connection terminals 26 and 26 are in contact with the power supply terminals 19 and 19 to be supplied with power. The power supply terminals 19 and 19 are connected to an external power source via a cord 28. Further, the socket 27 supports the base body 3 (main body portion 12) over the entire circumference, and is formed so as not to be easily removed from the socket 27 even when the fluorescent lamp device 25 is arranged in the vertical direction.

  Since the fluorescent lamp device 25 is provided with a pair of connection terminals 26 and 26 on the side surfaces 12c and 12c facing the juxtaposed direction A of the bulb ends 5a and 5b of the base body 3 (main body portion 12), FIG. The overall length in the protruding direction of the bulb 5 is shorter than the fluorescent lamp device 1 shown. Therefore, the fluorescent lamp device 25 can be further miniaturized, and the lighting fixture can be designed to be thinner, so that the cost can be reduced.

  Further, when the pair of connection terminals 26 and 26 are provided on the lower surface portion 12b of the base body 3 (main body portion 12), the power supply terminals 19 and 19 of the socket 27 are provided on the bottom surface 27a. It is necessary to press the fluorescent lamp device 25 toward the socket 27 so that 26 is always connected to the power supply terminals 19 and 19. However, since the fluorescent lamp device 25 is provided with a pair of connection terminals 26 and 26 on the side surfaces 12c and 12c of the base body 3 (main body portion 12) and the base body 3 is supported by the socket 27, the fluorescent lamp device 25 is connected to the socket 27. There is no need to press to the side.

  Next, a third embodiment of the present invention will be described.

  4A and 4B show a fluorescent lamp device according to a third embodiment of the present invention, in which FIG. 4A is a partially cut schematic front view, and FIG. 4B is a partially cut schematic side view. Note that the same parts as those in FIG.

  A fluorescent lamp device 29 shown in FIG. 4 includes a fluorescent lamp 31 having a bent bulb 30 instead of the fluorescent lamp 2 in the fluorescent lamp device 1 shown in FIG.

  The bent valve 30 is formed by arranging four straight pipe valves 32,..., 32 in parallel on a substantially same plane and communicating the four straight pipe valves 32,. is there. That is, the other end sides 32b, 32b of the straight pipe valves 32, 32 on both sides and the middle, and the one end sides 32a, 32a of the intermediate straight pipe valves 32, 32 are communicated by the communication pipes 33,. Filament electrodes 6 and 6 are sealed at one end sides 32a and 32a of the straight pipe valves 32 and 32 on both sides, respectively. The other end sides 32b, 32b of the straight pipe valves 32, 32 on both sides and the both end sides 32a, 32b of the intermediate valves 32, 32 are sealed with dummy stems (not shown).

  Thus, in the bent bulb 30, the two straight tube bulbs 32, 32 are each formed in a substantially H shape, and a meandering discharge path having a discharge folded portion (communication tube 33) is formed. The communication pipe 33 is formed by blowing, for example. The straight pipe valves 32,..., 32 are made of soda lime glass pipes having a pipe outer diameter of 17.5 mm and a wall thickness of 1.1 mm.

  One end side 32a, ..., 32a of the four straight pipe valves 32, ..., 32 is a base 34 formed in a substantially rectangular parallelepiped shape having a wide flat shape in the parallel direction A of the valve end portions 32a, ..., 32a. The main body portion 35 is supported by the upper surface portion 35a. The base body 34 is formed having a main body portion 35 and a box-like convex portion 36.

  Since the width of the convex portion 36 in the juxtaposed direction A is larger than that of the convex portion 14 shown in FIG. 1, the circuit board 37 is formed in a planar convex shape, and is formed inside the main body portion 35 and the convex portion 36. They are arranged so as to be substantially parallel to the parallel direction A. In addition to the electrolytic capacitor C1, some electronic components such as field effect transistors FET1 and FET2 that are desired to suppress a temperature rise are disposed on the circuit board 37 in the accommodation space of the convex portion 36. Hereinafter, it is formed similarly to the fluorescent lamp device 1 shown in FIG.

  The fluorescent lamp 30 has coldest portions on the other end sides 32b and 32b of the straight tube bulbs 32 and 32 on the non-base 34 side of the discharge folding portion (communication tube 33) that is out of the discharge path of the bent bulb 31. Since it is easily formed, it is possible to enclose an amalgam having a higher mercury vapor pressure. Therefore, in the fluorescent lamp device 29, the rise of the luminous flux after starting is accelerated.

  Further, in the fluorescent lamp device 29, since the fluorescent lamp 30 has four straight tube bulbs 32, ..., 32 and the discharge path length is long, a large amount of light is emitted. Therefore, the illumination area can be illuminated brightly. Further, since the four straight tube bulbs 32,..., 32 are arranged side by side in substantially the same plane, the fluorescent lamp device 29 can be used as a planar light source.

  Next, a fourth embodiment of the present invention will be described.

  5A and 5B show a fluorescent lamp device according to a fourth embodiment of the present invention, in which FIG. 5A is a partially cut schematic front view, and FIG. 5B is a partially cut schematic side view. The same parts as those in FIGS. 3 and 4 are denoted by the same reference numerals and description thereof is omitted.

  A fluorescent lamp device 38 shown in FIG. 5 is different from the fluorescent lamp device 29 shown in FIG. 4 in that a pair of power supply connection terminals 26 and 26 are replaced with bulb end portions 32a,. Are arranged on both side surfaces 36c, 36c of the convex portion 36 facing the juxtaposed direction A. The connection terminals 26 and 26 are connected to the input part of the circuit board 37 via the wires 17.

  In the fluorescent lamp device 38, the convex portion 36 of the base 34 is inserted into the socket. As a result, the connection terminals 26 and 26 are in contact with the power supply terminals 19 and 19 of the socket to supply power. And since the base | substrate 34 is formed in the flat shape wide in the juxtaposition direction A of valve | bulb edge part 32a, ..., 32a, it is thin and can be arrange | positioned in a thin lighting fixture.

  Next, a fifth embodiment of the present invention will be described.

  6A and 6B show a fluorescent lamp device according to a fifth embodiment of the present invention. FIG. 6A is a partially cutaway schematic front view, and FIG. In the fifth embodiment, a part of the substrate 3 of the first embodiment shown in FIG. 1 is improved, and other identical parts are denoted by the same reference numerals, and description thereof is omitted.

  The present embodiment is characterized in that a stepped portion 12d is formed in a corner portion (a portion where the upper surface and the side surface intersect) on the upper surface portion side as a support portion of the base 3. The step 12d is formed continuously in the circumferential direction of the base 3 by resin molding, and is formed on both the inner and outer surfaces of the base 3. A silicone adhesive 15 is applied to the bulb end portion of the fluorescent lamp 2 from the insertion hole to the inner surface of the step portion 12d in a state of being inserted into the insertion hole. As described above, the silicone adhesive 15 is attached to the inner surface of the step portion 12d, so that the bonding area is widened and the fixing strength of the fluorescent lamp 2 is improved. Further, since the stepped portion 12d is also formed on the outer surface, the outer surface area of the base 3 is increased, and the heat dissipation effect is improved.

  Next, a sixth embodiment of the present invention will be described.

  FIG. 7: shows the lighting fixture of the 6th Embodiment of this invention, Fig.7 (a) is a partially notched schematic front view, FIG.7 (b) is a partially notched schematic side view. The same parts as those in FIG.

  A lighting fixture 39 shown in FIG. 7 is embedded or directly attached to a ceiling or the like, and includes three fluorescent lamp devices 25 shown in FIG. The luminaire main body 40 is provided with a socket 27, a reflection frame 41, and a substantially V-shaped reflection plate. Moreover, as shown to Fig.7 (a), the lighting fixture main body 40 has arrange | positioned the support body 43 which supports the bulb | ball 5 of the fluorescent lamp 2. As shown in FIG. When the bulb 5 has a predetermined length, for example, 15 cm or more and is arranged in a substantially horizontal direction, the fluorescent lamp device 25 is stably attached to the lighting fixture body 40 by the socket 27 and the support 43.

  And since the base | substrate 3 (main-body part 12) of the fluorescent lamp apparatus 25 is supported by the socket 27 when it is inserted in the socket 27, it does not remove | deviate from the socket 27 easily.

  The reflected light emitted from the fluorescent lamp 2 of the fluorescent lamp device 25 and reflected by the reflecting plate 42 and the direct light from the fluorescent lamp 2 are emitted from the opening 40a to the outside of the luminaire main body 40 to illuminate the illumination area. .

  Since the lighting fixture 39 does not include an accessory such as a lighting circuit 4 for lighting the fluorescent lamp 2 and a case in which the lighting circuit 4 is disposed, the cost is reduced. Moreover, since a space for disposing the accessory is not required, the lighting fixture can be easily designed to be small and thin. That is, since the base 3 of the fluorescent lamp device 25 has a flat shape that is wide in the direction A in which the bulb ends 5a and 5b are arranged side by side, the fluorescent lamp 2 is arranged to face the opening 40a of the luminaire main body 40. The lighting fixture 39 is formed in a thin shape.

  Next, a seventh embodiment of the present invention will be described.

  FIG. 8 is a partially cutaway schematic front view of a luminaire showing a seventh embodiment of the present invention. Note that the same parts as those in FIG.

  A lighting fixture 44 shown in FIG. 8 is a recessed downlight embedded in a ceiling or the like, and a socket 46 is disposed inside a lighting fixture main body 45 formed in a substantially cylindrical shape with a bottom. A reflecting mirror 47 that is optically opposed to the fluorescent lamp 2 of the fluorescent lamp device 1 is attached.

  In the fluorescent lamp device 1, a pair of connection pins 13 and 13 and a convex portion 14 of the base 3 are inserted into a socket 46. And the convex part 14 is supported by the socket 46 over the circumference | surroundings. Therefore, even if the fluorescent lamp device 1 is arranged in the vertical direction on the luminaire main body 45, the pair of connection pins 13 and 13 are prevented from coming off from the socket 46.

  Then, the reflected light emitted from the fluorescent lamp 2 and reflected by the reflecting mirror 47 and the direct light from the fluorescent lamp 2 are emitted from the opening 45a to the outside of the luminaire main body 45 to illuminate the illumination area.

  Since the lighting fixture 44 does not require the lighting circuit 4 for high-frequency lighting of the fluorescent lamp 2 of the fluorescent lamp device 1 and the accessory for arranging the lighting circuit 4, the cost is reduced and the arrangement space is eliminated. Lighting fixtures are easy to design and can be miniaturized. And even if the lighting circuit 4 becomes unusable due to an accident, the fluorescent lamp device 1 is replaced, so that maintenance is easy.

1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a partially cutaway schematic front view of a fluorescent lamp device, and FIG. 1B is a partially cutaway schematic side view. Similarly, the circuit diagram of a lighting circuit. The fluorescent lamp device of the 2nd Embodiment of this invention is shown, Fig.3 (a) is a partially notched schematic front view, FIG.3 (b) is a partially notched schematic side view. The fluorescent lamp device of the 3rd Embodiment of this invention is shown, FIG. 4 (a) is a partially notched schematic front view, FIG.4 (b) is a partially notched schematic side view. The fluorescent lamp device of the 4th Embodiment of this invention is shown, FIG.5 (a) is a partially notched schematic front view, FIG.5 (b) is a partially notched schematic side view. The fluorescent lamp device of the 5th Embodiment of this invention is shown, FIG.6 (a) is a partially notched schematic front view, FIG.5 (b) is a principal part expanded sectional view. The lighting fixture of the 6th Embodiment of this invention is shown, FIG.7 (a) is a partially notched schematic front view, FIG.7 (b) is a partially notched schematic side view. The partial notch schematic front view of the lighting fixture which shows the 7th Embodiment of this invention.

Explanation of symbols

1, 25, 29, 38 ... fluorescent lamp device 2, 30 ... fluorescent lamp 3, 34 ... base 4 ... lighting circuit 27, 46 ... socket 39, 44 lighting fixture 40, 45 ... lighting fixture body

Claims (3)

A fluorescent lamp having a bulb bent so that a pair of electrodes sealed at both ends are in the same direction and the discharge paths meander in substantially the same plane;
A base that is formed in a flat shape that is wide in the direction in which the bulb ends are juxtaposed, has a support portion that supports both ends of the bulb of the fluorescent lamp, and a pair of power supply connection terminals on both sides facing the juxtaposition direction;
A lighting circuit that is housed inside the substrate and that illuminates the fluorescent lamp at a high frequency by supplying power to the pair of connection terminals;
A fluorescent lamp device comprising: A fluorescent lamp having a bulb bent so that a pair of electrodes sealed at both ends are in the same direction and the discharge paths meander in substantially the same plane;
A power supply that is formed in a flat shape that is wide in the direction in which the bulb ends are juxtaposed, and that supports both ends of the bulb of the fluorescent lamp, and a power supply provided at a predetermined interval in a portion opposite to the portion of the support. A base having a pair of connection terminals for use and a convex portion in which a housing space is formed between the pair of connection terminals;
Connected to the circuit board disposed inside the base body so as to be substantially parallel to the parallel arrangement direction of the valve ends, a plurality of electronic components mounted in a direction standing upright from the circuit board surface, and the circuit board A fluorescent lamp that has an electrolytic capacitor that smoothes the voltage obtained by rectifying the AC voltage accommodated in the accommodating space of the convex portion, rectifies and smoothes the AC voltage input through the pair of connection terminals , and converts it to a high-frequency voltage. A lighting circuit for high frequency lighting;
A fluorescent lamp device comprising: A fluorescent lamp device according to claim 1 or 2;
A socket in which a pair of connection terminals are detachable;
A lighting fixture body having a socket and a fluorescent lamp device mounted on the socket;
The lighting fixture characterized by comprising.

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