JP2008159564A - Light bulb-type fluorescent lamp and lighting fixture - Google Patents

Abstract

Provided is a bulb-type fluorescent lamp capable of easily connecting electrodes wires (35a, 35b) led out from both ends (33a, 33b) of a bulb (31) to a vertically arranged substrate (53).
A vertically arranged substrate 53 is interposed between both end portions 33a and 33b of a valve 31. Wrapping pins 57a and 57b are projected from both sides of the substrate 53. On one side of the substrate 53, an electrode wire 35a led out from one end 33a of the bulb 31 is connected to the wrapping pin 57a. On the other surface side of the substrate 53, the electrode wire 35b led out from the other end 33b of the bulb 31 is connected to the wrapping pin 57b.
[Selection] Figure 1

Description

  The present invention relates to a bulb-type fluorescent lamp that can be used in place of a general lighting bulb, and a lighting fixture using the bulb-type fluorescent lamp.

  Conventionally, a light bulb-type fluorescent lamp is housed in an arc tube having a bent bulb with electrodes sealed at both ends, a cover attached to one end side and supporting the arc tube on the other end side. A lighting device and a glove that covers the arc tube and is attached to the other end of the cover are provided.

  In general, a wall portion disposed inside the base shell is formed on one end side of the cover, and a part of the electronic components constituting the lighting device is disposed in the inner space of the wall portion. There are many more.

  Furthermore, the lighting device substrate housed in the cover is vertically arranged along the direction of the center line of the base, and a light bulb shape is formed so that this substrate and a part of the electronic components mounted on the substrate are arranged inside the base. There is a fluorescent lamp.

In this bulb-type fluorescent lamp, each end of the bulb is arranged on both sides of the substrate via a vertically arranged substrate, connected to the electrode at each end of the bulb, and led out from each end of the bulb. A pair of lead wires are entangled with a wrapping pin protruding from one surface of the substrate and electrically connected to the lighting device. A pair of lead wires led out from the end portion of the valve disposed on the one surface side of the substrate can be directly connected to the wrapping pin on the one surface side of the substrate, but from the end portion of the valve disposed on the other surface side of the substrate. Since the substrate is interposed, the pair of lead wires led out are led to one surface side of the substrate by bypassing the side edge of the substrate and connected to the wrapping pin (see, for example, Patent Document 1). .)
Japanese Patent Laying-Open No. 2005-302444 (5th page, FIG. 1)

  As described above, the pair of lead wires led out from the end portion of the valve disposed on the one surface side of the substrate can be directly connected to the wrapping pins on the one surface side of the substrate, but are disposed on the other surface side of the substrate. Since the pair of lead wires led out from the end of the bulb interposes the substrate, it is necessary to route the lead wire so as to bypass the side edge of the substrate in order to guide the lead wire to one side of the substrate and connect it to the wrapping pin is there.

  Moreover, the position of the pair of lead wires cannot be determined simply by drawing the pair of lead wires, and there is a possibility that the pair of lead wires may contact each other or contact an electronic component. Therefore, the wiring work becomes complicated and the cost increases.

  The present invention has been made in view of the above points, and a light-bulb-type fluorescent lamp that can easily connect a lead wire led out from both ends of a bulb to a vertically-arranged substrate and facilitate wiring work, and the light bulb. An object of the present invention is to provide a lighting apparatus using a fluorescent lamp.

  The bulb-type fluorescent lamp according to claim 1 has a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and led out from the ends of the bulb. A cover having a base attached to one end and an end of the arc tube supported on the other end; a substrate disposed vertically along the center line of the base inside the cover including the base; And a lighting device in which connection portions to which lead wires led out from respective end portions of the bulb are connected are provided on both surfaces of the substrate.

  A screw-in type referred to as an E-type is normally used as the base, but it is not limited to this as long as it can be attached to a socket to which a general lighting bulb is attached.

  The arc tube may be a bent arc tube in which a plurality of U-shaped bulbs are arranged in parallel to form a single discharge path, an arc tube in which a single bulb is spirally bent, or the like.

  The cover may be either for supporting the arc tube indirectly or directly. In the case of indirectly supporting the arc tube, it is preferable to use a holder to which the arc tube can be attached to the other end side of the cover. Further, a glove that covers the arc tube may be attached to the cover.

  For example, the lighting device may be configured by an inverter circuit mainly composed of electronic components that turn on the arc tube by applying high-frequency power of 10 kHz or more to the arc tube. For example, the substrate is disposed vertically between both ends of the bulb of the arc tube, and may or may not be interposed between both ends of the bulb. The connecting portion may be, for example, a wrapping pin that is connected by tangling a lead wire or a conductive portion of a substrate that is connected by soldering the lead wire.

  And the lead wire led out from each edge part of a valve | bulb can be connected to the connection part provided in each of both surfaces of a board | substrate.

  The bulb-type fluorescent lamp according to claim 2, wherein the bulb has a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and drawn out from the end of the bulb. A cover having a base attached to one end and an end of the arc tube supported on the other end; a substrate disposed vertically along the center line of the base inside the cover including the base; The board is provided with an insertion hole through which the lead wire led out from one end of the valve passes from one side of the board to the other side, and is led out from the other end of the valve on the other side of the board. A lighting device provided with a connecting portion to which a lead wire led out from one end portion of the bulb through the lead wire and the board insertion hole is connected.

  The insertion hole may be, for example, a hole whose periphery is closed, or a hole that is open through a groove at the edge of the substrate, and wiring work can be facilitated as long as the hole is open through the groove at the edge of the substrate. If the insertion hole is provided individually for each lead wire, insulation can be secured, and there is no need to use an insulating tube.

  Then, a lead wire led out from the other end portion of the valve and a lead wire led out from one end portion of the valve through the insertion hole of the substrate can be connected to the connection portion provided on the other surface of the substrate. Moreover, the position can be regulated by passing the lead wire through the insertion hole.

  The bulb-type fluorescent lamp according to claim 3, comprising: a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and drawn from the end of the bulb. A cover having a base attached to one end and the end of the arc tube supported on the other end; a partition plate for partitioning the inside of the cover into the base side and the arc tube side; between the base and the partition plate Inside the cover including the base, there is a substrate arranged vertically along the direction of the center line of the base, and the lead wire led out from one end of the valve is partitioned at the end of the substrate facing the partition plate A holding part is provided that passes between the board and the other side through the board, and is sandwiched and held between the board and the other side of the board. And between the partition plate and the board holder Those that include a; connection portion leads are led from one end of the valve are connected respectively and have lighting device provided.

  For example, the holding portion is configured by a concave portion formed by making the end portion of the substrate uneven, and a pair of lead wires may be passed through the concave portion, or each lead wire is individually provided by providing a pair of concave portions. You can pass. When passing a pair of lead wires through one recess, an insulating tube may be put on at least one of the lead wires.

  And the lead wire led out from the other end of the valve to the connecting portion provided on the other surface of the substrate, the lead wire led out from one end of the valve passing between the partition plate and the holding portion of the substrate Can be connected individually. In addition, the lead wire can be sandwiched and held between the partition plate and the holding portion of the substrate, and the position of the lead wire can be regulated, instead of simply drawing the lead wire.

  The bulb-type fluorescent lamp according to claim 4, wherein the bulb has a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and drawn from the end of the bulb. A cover having a base attached to one end and the end of the arc tube supported on the other end; a substrate surface disposed vertically along the direction of the center line of the base inside the cover including the base Has a substrate disposed at a position not orthogonal to the direction connecting both ends of the bulb, and a connection portion to which a lead wire led out from each end of the bulb is connected is provided on this substrate. And a lighting device.

  The connection part of a board | substrate may be provided only in the one surface side of a board | substrate, or may be provided in both surfaces.

  And by arranging the substrate surface at a position that is not orthogonal to the direction connecting both ends of the bulb, the distance between the substrate and both ends of the bulb is shortened, and the lead wire led out from both ends of the bulb It is possible to shorten the connection distance for connecting to the connection portion of the substrate.

  The lighting fixture according to claim 5 comprises: a fixture main body; a socket attached to the fixture main body; and the light bulb shaped fluorescent lamp according to any one of claims 1 to 4 connected to the socket. is there.

  The instrument body is, for example, a downlight, but is not limited to this as long as the instrument body uses a general lighting bulb. As the socket, a screw-in type called E-type is usually used, but the socket is not limited to this as long as it is a socket to which a general lighting bulb is attached.

  According to the bulb-type fluorescent lamp of claim 1, since the lead wires led out from the respective end portions of the bulb can be connected to the connection portions provided on both surfaces of the substrate, the lead wires are not drawn around the substrate. It can be connected easily, does not require an insulating tube, etc., making wiring work easy and reducing costs.

  According to the light bulb shaped fluorescent lamp of the second aspect, the lead wire led out from one end of the bulb can be passed from the one surface side to the other surface side through the insertion hole provided in the substrate. The lead wire led out from the other end of the bulb and the lead wire through the board insertion hole can be connected to the connection part provided on the surface, respectively, and can be easily connected to the board without drawing the lead wire, The position can be regulated by passing the lead wire through the insertion hole, there is no need for an insulating tube or the like covering the lead wire, wiring work can be facilitated, and cost can be reduced.

  According to the light bulb shaped fluorescent lamp of claim 3, the lead wire led out from one end portion of the bulb is passed between the partition plate and the holding portion of the substrate from the one surface side to the other surface side, and is sandwiched and held. Therefore, the lead wire led out from the other end of the valve and the lead wire passed between the partition plate and the holding portion of the substrate can be easily connected to the connection portion provided on the other surface of the substrate, respectively. Rather than simply drawing the lead wire, the lead wire can be sandwiched and held between the partition plate and the holding part of the board, so the position of the lead wire can be regulated, and there is no need for an insulation tube to cover the lead wire. The cost can be reduced.

  According to the light bulb shaped fluorescent lamp according to claim 4, by disposing the substrate surface at a position not orthogonal to the direction connecting both ends of the bulb, the distance between the substrate and both ends of the bulb is shortened, Since the connection distance to connect the lead wire led out from both ends of the valve to the connection part of the board can be shortened, it can be easily connected to the board with less lead wire routing, and it is possible to reduce insulation tubes, etc. Wiring work can be facilitated and costs can be reduced.

  According to the lighting fixture of Claim 5, the lighting fixture which has an effect | action of the bulb-type fluorescent lamp of any one of Claim 1 thru | or 4 can be provided.

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

  1 to 4 show a first embodiment, in which FIG. 1 is a cross-sectional view seen from the side of a substrate of a bulb-type fluorescent lamp, and FIG. 2 is a cross-sectional view seen from one side of the substrate of a bulb-type fluorescent lamp. 3 is a partial end view of the substrate and partition plate of the bulb-type fluorescent lamp as seen from the base side, and FIG. 4 is a cross-sectional view of a lighting fixture using the bulb-type fluorescent lamp.

  1 and 2, reference numeral 11 denotes a light bulb-type fluorescent lamp. The light bulb-type fluorescent lamp 11 includes a cover 13 having a base 12 at one end in the height direction, and an arc tube supported at the other end of the cover 13. 14, a metal holder 15 that supports one end of the arc tube 14 and is attached to the other end of the cover 13, and a synthetic resin partition plate 16 provided so as to cover the inner surface of the holder 15 And a globe 17 that covers the arc tube 14 and is attached to the holder 15, and a base 12, a cover 13, and a lighting device 18 that is housed inside the holder 15. The rated power is formed to have substantially the same appearance as that of a general lighting bulb such as a 40 W type, 60 W type, or 100 W type incandescent bulb. This general lighting bulb is defined in JIS C 7501.

  The base 12 is, for example, an Edison type E26 type, and includes a cylindrical shell 21 having a thread and an eyelet 23 provided on the top of one end of the shell 21 via an insulating portion 22. A threaded portion 21a, which is a male screw, is formed on one end side of the shell 21, and an annular fixing portion 21b is formed on the other end side to cover the one end portion of the cover 13 and fix it by caulking or bonding.

  The cover 13 is formed of a heat-resistant synthetic resin such as polybutylene terephthalate (PBT), for example, and a cylindrical base attachment portion 26 to which the fixing portion 21b of the shell 21 of the base 12 is attached is formed on one end side. An expanded annular cover portion 27 is formed on the other end side. A groove-like substrate holding part 28 is formed in parallel with the center line of the cover 13 at a position offset from the center line of the cover 13 inside the base attachment part 26.

  In addition, the arc tube 14 is bent at the central region of the bulb 31 so as to divide the straight tube 31 into two equal parts, and both ends of the bulb 31 with the bent central region of the bulb 31 as the top portion 32. The sides are curved in a spiral. The spiral valve 31 is formed by bending a single straight tubular valve 31 by heating and melting it so that the valve 31 is divided into two equal parts in the central region, and further forming a bent central region. Both ends of the valve 31 are spirally formed as a top 32 by winding both ends of the valve 31 along a spiral groove formed in the mold. Both end portions 33a and 33b of the valve 31 protrude in parallel toward one end direction opposite to the top portion 32.

  For example, a phosphor of a three-wavelength emission type is formed on the inner surface of the bulb 31, and the bulb 31 contains a rare gas such as argon (Ar), neon (Ne), or krypton (Kr), or an enclosed gas containing mercury. Is enclosed.

  A pair of electrodes 34a, 34b is sealed at each end 33a, 33b of the bulb 31 by a flare stem. Each electrode 34a, 34b has a filament coil suspended on a pair of jumet wires. For example, the pair of jumet wires are sealed in a flare stem, and are connected to wires 35a and 35b as a pair of lead wires that are led out from the flare stem and connected to the lighting device 18. That is, a pair of wires 35a and 35b are led out from the end portions 33a and 33b of the valve 31, respectively.

  Cylindrical narrow tubes 36a and 36b, also called exhaust pipes attached to the flare stem, project from the end portions 33a and 33b of the valve 31 so as to communicate with each other. Each of these thin tubes 36a, 36b is sequentially sealed by melting in the manufacturing process of the arc tube 14, and the arc tube 14 is exhausted through an unsealed part of each of the thin tubes 36a, 36b and enclosed. After the gas is sealed and replaced, the capillaries 36a and 36b are sealed by fusing.

  One narrow tube 36a is a long tube formed so that the tip end extends to the inside of the base 12, and the tip end is filled with a main amalgam 37 as an amalgam. The main amalgam 37 is an alloy composed of bismuth, tin and mercury, is formed in a substantially spherical shape, and has an action of controlling the mercury vapor pressure in the arc tube 14 within an appropriate range. In addition, as the main amalgam 37, what was formed with the alloy which combined indium, lead, etc. other than bismuth and tin may be used. Further, auxiliary amalgam having mercury adsorption / release action may be attached to the internal lead wires of the electrodes 34a, 34b.

  The holder 15 is made of a metal material having good thermal conductivity such as aluminum or an aluminum alloy, for example, and is a disc-shaped holder portion 40 and a cylindrical tube protruding from the peripheral edge of the holder portion 40 to one end side. A portion 41 and an annular cover portion 42 protruding outward from one end side of the cylindrical portion 41 are provided.

  The holder portion 40 is formed with a pair of insertion holes 43, 43 through which the pair of end portions 33a, 33b of the arc tube 14 are inserted. By injecting an adhesive 44 such as silicone resin or epoxy resin from the inside of the cylinder portion 41 in a state where the pair of end portions 33a and 33b of the arc tube 14 is inserted into the pair of insertion holes 43 and 43, light is emitted. A tube 14 is bonded and fixed to the holder 15.

  The cover part 42 is fitted with one end side fitted to the other end side of the cover part 27 of the cover 13, and the other end side is formed to expand to one end side, and the globe 17 is attached to the other end side. It has been. Therefore, the cover part 42 is exposed outward from between the cover 13 and the globe 17 and constitutes a part of the appearance of the bulb-type fluorescent lamp 11 together with the cover 13 and the globe 17.

  The partition plate 16 is formed of a heat-resistant synthetic resin material such as polybutylene terephthalate (PBT), for example, and has a disk-shaped partition plate portion 47 and a cylinder projecting from the peripheral portion of the partition plate portion 47 to one end side. And a mounting portion 49 that protrudes outward from one end of the cylindrical portion 48. The attachment portion 49 is attached by being sandwiched between the cover 13 and the holder 15, and may be bonded and fixed with an adhesive having viscosity such as silicone resin or epoxy resin.

  The partition plate portion 47 is formed with a pair of insertion holes 50 and 50 through which the thin tubes 36a and 36b of the arc tube 14 and the wires 35a and 35b are inserted. Although not shown, a groove-shaped substrate holding portion is formed along the center line of the partition plate 16 at a position offset from the center line of the partition plate 16 inside the cylinder portion 48.

  The globe 17 is made of a material such as transparent or light diffusing glass or synthetic resin, and is formed into a smooth curved surface close to the shape of a glass bulb of a general lighting bulb such as an incandescent bulb. An opening 17a is formed at one end of the globe 17, and the edge of the opening 17a is fitted inside the cover portion 42 of the holder 15, and is bonded and fixed with a viscous adhesive such as silicone resin or epoxy resin. Has been.

  The lighting device 18 includes a substrate 53 on which a plurality of electronic components 55 that constitute the lighting circuit 54 are mounted. The base 53 is narrower on the side of the base 12 than the side of the cover 13, and is formed in a width dimension that allows the base 12 to be inserted inside the base 12, and the height dimension is longer than the width dimension. It is formed in a substantially rectangular shape.

  As shown in FIGS. 1 to 3, the substrate 53 has both side edges of the substrate 53 inserted and engaged with a pair of substrate holding portions 28 of the cover 13 and a pair of substrate mounting portions of the partition plate 16. They are arranged vertically along the direction of the center line of the partition plate 16 (that is, the center line of the bulb-type fluorescent lamp 11), and are disposed at positions offset from the center lines of the cover 13 and the partition plate 16. That is, in a state where the base 12, the cover 13, the holder 15, and the partition plate 16 are combined, the substrate 53 is arranged vertically along the direction of the center line of the base 12 with respect to the inside of the base 12. The base plate 12 is disposed at a position offset from the center line. Further, the vertically disposed substrate 53 is disposed between both end portions 33a and 33b of the valve 31, that is, the one end portion 33a of the valve 31 is disposed facing one surface side of the substrate 53 and the substrate 53 is disposed. The other end portion 33b of the valve 31 is arranged facing the other surface side of the first surface.

  In FIG. 3, the imaginary line a is the center line of the cross section of the cover 13, and the central axes of the both end portions 33 a and 33 b of the valve 31 (or the electrodes 34 a and 34 b of the both end portions 33 a and 33 b of the valve 31). ). The substrate 53 is disposed at a position where the substrate surface of the substrate 53 is not orthogonal to the imaginary line a, that is, the angle formed between the substrate surface of the substrate 53 and the imaginary line a is larger than 0 ° 90. It is arranged at an angle smaller than °.

  On the other end side, which is the arc tube 14 side of the substrate 53, a contact portion 56 that contacts the partition plate 16 is formed to protrude at the center position on the other end side. Wrapping pins 57a and 57b are provided as a pair of connecting portions for winding and connecting the pair of wires 35a and 35b of the electrodes 34a and 34b, respectively. Each of the pair of wrapping pins 57a and 57b protrudes from different surfaces of the substrate 53, and one wrapping pin 57a protrudes from a position on the one surface side of the substrate 53 where the one end portion 33a of the valve 31 approaches. The other wrapping pin 57b protrudes at a position on the other surface side of the substrate 53 where the other end portion 33b of the valve 31 approaches.

  The position in the height direction of the substrate 53 is positioned and held by connection between the wires 35a and 35b of the arc tube 14 and the wrapping pins 57a and 57b or by being sandwiched between the base 12 and the partition plate 16.

  In addition, electronic components 55 are mounted on both surfaces of the substrate 53, but on the surface of the substrate 53 on the side where the distance from the base 12 is wide, the transformer CT, capacitor C1, electrolytic capacitor C2, etc. of the electronic component 55 are large. Type electronic component 55 is mounted, and on the surface of the substrate 53 on the side where the distance from the base 12 is narrow, surface mounting of a low-profile transistor, chip-type capacitor, rectifier, etc. of the electronic component 55 A type electronic component 55 is mounted. As the transistors, MOS type N-channel field effect transistor Q1 and MOS type P-channel field effect transistor Q2 are used as one package component.

  The electrolytic capacitor C2 is mounted in the center region in the width direction of the substrate 53 in a direction perpendicular to the substrate 53. Thereby, the mounting efficiency of the substrate 53 is improved, and the size of the substrate 53 can be reduced. An electronic component 55 such as a capacitor C1 located on the side in the width direction of the substrate 53 approaching the base 12 is disposed to be inclined toward the center in the width direction of the substrate 53. Accordingly, the electronic component 55 can be inserted without hitting the inside of the base 12, and the lighting device 18 can be efficiently stored inside the base 12. The electronic component 55 to be tilted is a discrete component and is a so-called radial component that is mounted on the substrate 53 with two lead wires.

  As an electronic component 55 to be connected using the wrapping pins 57a and 57b of the substrate 53, there is a positive temperature characteristic resistance element PTC1 disposed at the center position in the width direction of the substrate 53. This positive temperature characteristic resistance element PTC1 is a discrete component, which is a component which can be connected by wrapping two lead wires around the wrapping pins 57a and 57b and soldering or welding as necessary. The positive temperature characteristic resistance element PTC1 is a relatively heat-resistant component among the electronic components 55 of the lighting circuit 54, and is disposed at the edge of the substrate 53 facing the arc tube 14 side.

  In the arrangement of the electronic component 55 on the substrate 53, the electronic component 55 such as the capacitor C1 and the electrolytic capacitor C2 constituting the power supply part of the lighting circuit 54 is arranged inside the base 12, and the transformer CT and the field effect constituting the high-frequency circuit part are arranged. Electronic components 55 such as transistors Q1 and Q2 are arranged closer to the arc tube 14 than the base 12 is. As a result, an insulation distance between the electronic component 55 of the high frequency circuit section and the base 12 is secured, and noise wraparound from the high frequency circuit side to the power source is reduced.

  Further, a narrow tube 36a enclosing the main amalgam 37 is disposed between the surface side of the substrate 53 where the distance from the base 12 is narrow. Thereby, the lighting device 18 and the thin tube 36a are efficiently arranged inside the base 12.

  The offset amount of the substrate 53 with respect to the center line of the base 12 is preferably in a range up to 3/4 of the inner diameter of the base 12. When the offset amount is closer to the inner surface side of the base 12 than the position of 3/4, the width of the substrate 53 is reduced, the mounting area of the substrate 53 is reduced, and the mounting efficiency of the electronic component 55 is reduced. It is not preferable. Therefore, if the substrate 53 has a smaller offset amount and is arranged near the center of the base 12, the width of the substrate 53 can be widened and the mounting area can be increased, which increases the wattage of the lighting device 18 and increases the circuit scale. Yes.

  Further, inside the cover 13, a heat blocking member 64 that thermally blocks the base 12 side and the arc tube 14 side is disposed. For example, silicone resin or epoxy resin is used for the heat blocking member 64, and is injected so as to fill at least an opening between the inner peripheral surface of the cover 13 and the substrate 53 and the electronic component 55. Note that the heat shield between the base 12 side and the arc tube 14 side may be such that the opening between the vertically arranged substrate 53 and the inside of the cover 13 may be sealed without any gap, or there may be a gap if the heat can be blocked. May be. Further, the heat shielding member 64 may be provided to the inside of the base 12 or the inside of the partition plate 16, and if the cover is provided to the inside of the base 12, the cover 13 and the base 12 are bonded and fixed. And the strength is improved. Moreover, if it is provided to the inside of the partition plate 16, the strength of the cover 13 and the partition plate 16 is improved for the same reason.

  Further, inside the base 12, a heat conductive member 65 that thermally connects the distal end portion of the narrow tube 36 a enclosing the main amalgam 37 disposed in the base 12 and the base 12 is disposed. Some of the electronic components 55 such as the electrolytic capacitor C2, which is a heat generating component, may be further thermally connected to the heat conductive member 65. The heat conductive member 65 is made of, for example, silicone resin or epoxy resin. For example, before the base 12 is combined, the heat conductive member 65 is thermally conductive to the tip of the thin tube 36a accommodated in the base 12, the substrate 53, the electronic component 55, etc. Each component can be connected by the heat conductive member 65 by injecting the conductive member 65 or combining the base 12 into which the heat conductive member 65 is injected. The heat conductive member 65 may be filled in the entire inner side of the base 12, that is, may be in contact with the heat blocking member 64.

  Next, to assemble the bulb-type fluorescent lamp 11, the end portions 33a and 33b on one end side of the arc tube 14 are inserted into the insertion holes 43 and 43 of the holder 15, and the adhesive 44 is injected from the inside of the holder 15. Then, the end portions 33 a and 33 b of the arc tube 14 are bonded and fixed to the holder 15.

  The thin tubes 36a, 36b and the wires 35a, 35b protruding from the end portions 33a, 33b of the arc tube 14 drawn inside the holder 15 are passed through the insertion holes 50, 50 of the partition plate 16, and the partition plate 16 is inserted into the holder. Insert inside 15.

  Both side edges of the substrate 53 are inserted into the substrate mounting portion of the partition plate 16, and the wires 35a and 35b of the arc tube 14 drawn out inside the partition plate 16 are wound around the wrapping pins 57a and 57b of the substrate 53 and soldered. Connect.

  The holder 15 and the cover 13 are combined and combined. The heat blocking member 64 is injected so as to fill the opening between the inner peripheral surface of the cover 13 and the substrate 53 and the electronic component 55.

  One lead wire (not shown) connected to the input portion side of the substrate 53 is connected to the eyelet 23 of the base 12, and the other lead wire is disposed on the base attachment portion 26 of the cover 13, and the outer periphery of the base attachment portion 26 The fixing portion 21b of the shell 21 of the base 12 is fitted to the tip of the other lead wire, the fixing portion 21b of the shell 21 is fixed to the base mounting portion 26 of the cover 13 by caulking, and the other lead wire is Electrically and mechanically connected to the shell 21.

  Before assembling the base 12, the thermal conductive member 65 is injected into the tip of the narrow tube 36 a accommodated in the base 12, the substrate 53, the electronic component 55, or the thermal conductive member 65 is placed inside the base 12. The tip 12 of the narrow tube 36a, the substrate 53, the electronic component 55, and the die 12 are thermally connected by the heat conductive member 65.

  The luminous bulb 14 is covered with a globe 17 and the globe 17 is fixed to the holder 15 with an adhesive.

  The bulb-type fluorescent lamp 11 formed in this way has a maximum outer diameter of the globe of about 65 mm, a total height of the lamp including the base 12 of about 133 mm, a lamp power including circuit loss of 23 W or less, and a total The luminous flux is about 1500 lm or more, and it can be used by replacing it with a general lighting bulb equivalent to 100 W.

  As shown in FIG. 4, the bulb-type fluorescent lamp 11 can be used for a lighting fixture 81 that is a downlight, for example. The lighting fixture 81 has a fixture main body 82, a socket 83 and a reflector 84 are attached in the fixture main body 82, and the bulb-type fluorescent lamp 11 is attached to the socket 83.

  In the bulb-type fluorescent lamp 11 configured as described above, the substrate 53 formed in a width dimension that can be inserted inside the base 12 is arranged vertically along the direction of the center line of the base 12 to thereby form a substrate. The cover 13 can be miniaturized by arranging 53 and the electronic component 55 inside the base 12.

  By arranging the substrate 53 at a position offset with respect to the center line of the base 12, the large electronic component 55 of the electronic components 55 can be disposed on one side having a wide space between the base 53 and the base 12. The lighting device 18 can be efficiently stored inside the cover 12, and the cover 13 and the like can be downsized. In particular, since the transformer CT and the like increase in size due to an increase in output, the large transformer CT can be disposed on one surface having a large distance from the base 12 of the substrate 53.

  Moreover, by arranging the substrate 53 vertically, the substrate 53 is interposed between both end portions 33a and 33b of the valve 31, but each end portion of the valve 31 is connected to the wrapping pins 57a and 57b provided on both surfaces of the substrate 53, respectively. Since the wires 35a and 35b led out from 33a and 33b can be connected, the wrapping pins 57a and 35b without routing the wires 35a and 35b so as to bypass the substrate 53 interposed between both ends 33a and 33b of the valve 31. Can easily connect to 57b. Therefore, it is not necessary to cover the wires 35a and 35b with an insulating tube or the like, wiring work can be facilitated, and cost can be reduced.

  Further, by disposing the substrate surface of the substrate 53 at a position not orthogonal to the virtual line a connecting the both end portions 33a and 33b of the valve 31, the distance between the substrate 53 and both end portions of the valve 31 is shortened. The connection distance for connecting the wires 35a and 35b led out from both end portions 33a and 33b of the valve 31 to the wrapping pins 57a and 57b of the substrate 53 can be shortened. Therefore, it is possible to easily connect the wires 35a and 35b, and it is possible to avoid contact between each pair of wires 35a and 35b and contact between the wires 35a and 35b and other electrical components 55, thereby reducing the number of insulating tubes and the like. The wiring work can be facilitated and the cost can be reduced.

  The connection portion of the substrate 53 is not limited to the wrapping pins 57a and 57b, but may be a circuit pattern portion formed on the substrate 53. In this case, the wires 35a and 35b can be connected to the circuit pattern portion of the substrate 53 by soldering or welding.

  Next, FIG. 5 shows a second embodiment, and FIG. 5 is a partial end view of the substrate and the partition plate of the bulb-type fluorescent lamp as viewed from the base side.

  Similar to the first embodiment, the vertically arranged substrate 53 is disposed between both end portions 33a and 33b of the valve 31, and the substrate surface of the substrate 53 is disposed at a position having a relationship not orthogonal to the virtual line a. ing.

  A pair of insertion holes through which the pair of wires 35a led out from the one end portion 33a of the valve 31 is passed from one surface side to the other surface side of the substrate 53 at a position where the one end portion 33a of the valve 31 approaches the substrate 53. 91 is formed. The shape of the insertion hole 91 is not particularly limited as long as the wire 35a can be inserted, but is preferably a through hole when it is necessary to conduct to each surface of the double-sided board.

  On the other surface side of the substrate 53 on the side where the other end 33b of the bulb 31 faces, a wire 35a passed through the insertion hole 91 to the other surface side of the substrate 53 through the insertion hole 91 is soldered or welded. A circuit pattern portion 92a is formed as a connection portion to be connected, and a circuit pattern portion 92b as a connection portion for connecting the wire 35b by soldering or welding to a position facing the other end portion 33b of the valve 31 is provided. Is formed.

  In the bulb-type fluorescent lamp 11 configured as described above, the wire 35a led out from the one end portion 33a of the bulb 31 can be passed from one surface side of the substrate 53 to the other surface side through the insertion hole 91 provided in the substrate 53. Therefore, the wire 35a that has passed through the insertion hole 91 of the substrate 53 and the wire 35b that has been led out from the other end portion 33b of the valve 31 can be connected to the circuit pattern portions 92a and 92b provided on the other surface of the substrate 53, respectively. It can be easily connected to the substrate 53 without routing the wires 35a and 35b. In addition, since the position can be regulated by passing the wire 35a through the insertion hole 91, an insulating tube or the like covering the wire 35a is not necessary, and wiring work can be facilitated and cost can be reduced.

  The connection portion of the substrate 53 is not limited to the wrapping pins 57a and 57b, but may be a circuit pattern portion formed on the substrate 53.

  Next, FIG. 6 and FIG. 7 show a third embodiment, FIG. 6 is a partial end view of the substrate and partition plate of the bulb-type fluorescent lamp as seen from the base side, and FIG. FIG. 5 is a partial cross-sectional view of the substrate and the partition plate as viewed from one surface side of the substrate.

  Similar to the first embodiment, the vertically arranged substrate 53 is disposed between both end portions 33a and 33b of the valve 31, and the substrate surface of the substrate 53 is disposed at a position having a relationship not orthogonal to the virtual line a. ing.

  A pair of wrapping pins 57a and 57b project from the other surface side of the substrate 53 on the side where the other end portion 33b of the bulb 31 faces, on both side positions of the central contact portion 56.

  The end portion of the substrate 53 facing the partition plate 16 is formed in a concavo-convex shape with a central abutting portion 56 and a groove portion 95 as a concave holding portion provided on a side portion of the abutting portion 56. The groove portion 95 allows the wire 35a led out from the one end portion 33a of the valve 31 to pass from the one surface side to the other surface side through the space between the partition plate 16 and the wire 35a. Can be held.

  In the bulb-type fluorescent lamp 11 configured as described above, the wire 35a led out from the one end portion 33a of the bulb 31 is passed between the partition plate 16 and the groove portion 95 of the substrate 53 from the one surface side to the other surface side. Since it can be inserted and held, it is led out from the wrapping pins 57a and 57b provided on the other surface of the substrate 53 from the wire 35a passing between the partition plate 16 and the groove portion 95 of the substrate 53, and the other end portion 33b of the valve 31. Each of the wires 35b can be easily connected. In addition, the wire 35a can be sandwiched and held between the partition plate 16 and the groove portion 95 of the substrate 53, instead of simply routing the wire 35a, so that the position of the wire 35a can be regulated and the insulating tube covering the wire 35a can be omitted. Therefore, wiring work can be facilitated and costs can be reduced.

  Next, FIG. 8 shows a fourth embodiment, and FIG. 8 is a partial cross-sectional view of the substrate and the partition plate of the bulb-type fluorescent lamp as viewed from one side of the substrate.

  Although the groove part 95 is provided in the board | substrate 53 similarly to 3rd Embodiment, by providing a pair of groove part 95 via the partition part 96, each wire 35a can be accommodated and hold | maintained one by one in each groove part 95, The contact between the pair of wires 35a and 35b can be reliably prevented.

  Next, FIG. 9 shows a fifth embodiment, and FIG. 9 is a partial cross-sectional view of the substrate and the partition plate of the bulb-type fluorescent lamp as viewed from one side of the substrate.

  Similar to the third embodiment, the groove portion 95 is provided in the substrate 53, but the groove portion 95 is provided only at a position where the wire 35a led out from the one end portion 33a of the valve 31 is passed from one surface side to the other surface side. . That is, the groove portion 95 is provided only on the side of the substrate 53 where the wrapping pin 57a is projected, and the side where the wrapping pin 57b is projected extends to the other end side of the substrate 53. Further, the pair of wrapping pins 57a are disposed on both sides of the groove portion 95 close to the other end side of the substrate 53, and the pair of wrapping pins 57b are also close to the other end side of the substrate 53 to the same position as the pair of wrapping pins 57a. Is arranged.

  As a result, the area of the substrate 53 can be increased and the mounting area where the electrical component 55 can be mounted without interfering with the wrapping pins 57a and 57b can be increased.

  In this configuration as well, as in the embodiment of FIG. 4, a pair of grooves 95 are provided via the partition portions 96, and each wire 35a is housed and held in each groove 95, so that a pair of wires You may make it prevent reliably contact between 35a, 35b.

  Next, FIG. 10 shows a sixth embodiment, and FIG. 10 is a partial end view of the substrate and the partition plate of the bulb-type fluorescent lamp as viewed from the base side.

  The substrate 53 is arranged so as not to intersect the imaginary line a, and is substantially parallel to the imaginary plane passing through the imaginary line a along the direction of the center line of the base 12 and is dimensioned to one side. They are spaced apart by D, so to speak, offset. Further, in this configuration, wrapping pins 57a and 57b as a pair of connection portions project from one surface side of the substrate 53. The dimension D is set larger than the length dimension of each wrapping pin 57a, 57b, that is, the projecting dimension from the surface of the substrate 53 and the radial dimension of the valve 31.

  In this configuration, even when the wrapping pins 57a and 57b as a pair of connecting portions project from one side of the substrate 53, it is not necessary to route the wires 35a and 35b so as to bypass the side edge of the substrate 53. Since the wires 35a and 35b can be connected to the wrapping pins 57a and 57b of the substrate 53 by the operation on the one surface side of the substrate 53, the wiring operation can be easily performed.

  Furthermore, since the wires 35a and 35b can be arranged and regulated in a linearly stretched state, there is no need for an insulating tube or the like covering the wires 35a and 35b, so that the wiring work can be facilitated and the cost can be reduced.

  The arc tube 14 is not limited to a spirally bent structure, and may employ a structure in which a plurality of U-shaped bulbs are arranged in parallel to form a single discharge path.

  Also, the globe 17 may be omitted and the arc tube 14 may be exposed. In this case as well, a general illumination bulb such as an incandescent bulb can be obtained. The rate of application to lighting fixtures that use electric bulbs can be further improved.

It is sectional drawing seen from the side surface side of the board | substrate of the lightbulb-type fluorescent lamp which shows the 1st Embodiment of this invention. It is sectional drawing seen from the one surface side of the board | substrate of a bulb-type fluorescent lamp same as the above. It is the one part end elevation which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp same as the above from the base side. It is sectional drawing of the lighting fixture using a bulb-type fluorescent lamp same as the above. It is the one part end elevation which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp which show the 2nd Embodiment of this invention from the nozzle | cap | die side. It is the one part end elevation which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp which show the 3rd Embodiment of this invention from the nozzle | cap | die side. It is a partial cross section figure which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp same as the above from the one surface side of the board | substrate. It is the partial cross section figure which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp which show the 4th Embodiment of this invention from the one surface side of the board | substrate. It is the partial cross section figure which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp which show the 5th Embodiment of this invention from the one surface side of the board | substrate. It is the one part end elevation which looked at the board | substrate and partition plate of the bulb-type fluorescent lamp which show the 6th Embodiment of this invention from the nozzle | cap | die side.

Explanation of symbols

11 Bulb-type fluorescent lamp
12 base
13 Cover
14 arc tube
16 Partition plate
18 Lighting device
31 Valve
34a, 34b electrode
35a, 35b Wire as lead wire
53 Board
57a, 57b Wrapping pin as connection part
81 Lighting equipment
82 Instrument body
83 socket
91 Insertion hole
92a, 92b Circuit pattern part as connection part
95 Groove as holding part

Claims (5)

An arc tube having a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and led out from the end of the bulb;
A cover having a base attached to one end and an end of the arc tube supported on the other end;
A connection that has a board arranged vertically along the direction of the center line of the base inside the cover including the base, and lead wires led out from each end of the valve are connected to both sides of the board. A lighting device provided with a section;
A bulb-type fluorescent lamp characterized by comprising: An arc tube having a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and drawn from the end of the bulb;
A cover having a base attached to one end and an end of the arc tube supported on the other end;
Inside the cover including the base, there is a substrate arranged vertically along the direction of the center line of the base, and this substrate has a lead wire led out from one end of the valve from one side of the substrate to the other side A lead wire led out from the other end portion of the valve and a lead wire led out from one end portion of the valve through the through hole of the substrate are connected to the other surface of the substrate, respectively. A lighting device provided with a connection;
A bulb-type fluorescent lamp characterized by comprising: An arc tube having a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and drawn from the end of the bulb;
A cover having a base attached to one end and an end of the arc tube supported on the other end;
A partition plate for partitioning the inside of the cover into the base side and the arc tube side;
There is a substrate arranged vertically along the direction of the center line of the base inside the cover including the base between the base and the partition plate, and from one end of the valve to the end of the substrate facing the partition plate The lead wire that has been led out is passed through the partition plate from one side of the substrate to the other surface side, and a holding portion is provided that is sandwiched and held between the partition plate. A lighting device provided with a connecting portion to which a lead wire led out from the lead wire and a lead wire led out from one end portion of the bulb passing between the partition plate and the holding portion of the substrate are respectively connected;
A bulb-type fluorescent lamp characterized by comprising: An arc tube having a bulb, a pair of electrodes sealed at both ends of the bulb, and a pair of lead wires connected to each electrode and drawn from the end of the bulb;
A cover having a base attached to one end and an end of the arc tube supported on the other end;
Inside the cover including the base, there is a board that is arranged vertically along the direction of the center line of the base, and the board surface is arranged at a position that is not orthogonal to the direction connecting both ends of the bulb. A lighting device provided with a connecting portion to which a lead wire led out from each end of the bulb is connected;
A bulb-type fluorescent lamp characterized by comprising: An instrument body;
A socket attached to the instrument body;
A bulb-type fluorescent lamp according to any one of claims 1 to 4 connected to a socket;
The lighting fixture characterized by comprising.

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