JP2005123200A - Compact self-ballasted fluorescent lamp - Google Patents

Compact self-ballasted fluorescent lamp Download PDF

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JP2005123200A
JP2005123200A JP2004319967A JP2004319967A JP2005123200A JP 2005123200 A JP2005123200 A JP 2005123200A JP 2004319967 A JP2004319967 A JP 2004319967A JP 2004319967 A JP2004319967 A JP 2004319967A JP 2005123200 A JP2005123200 A JP 2005123200A
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fluorescent lamp
bulb
cover
diameter
envelope
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Masahiko Yoshida
正彦 吉田
Kunio Yuasa
邦夫 湯浅
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact self-ballasted fluorescent lamp conforming to a specification of an incandescent bulb. <P>SOLUTION: This compact self-ballasted fluorescent lamp is provided with: an envelope equipped with a cover having a base for a bulb and a globe attached to the cover, having a nearly spherical tip side, having a diameter around 60 mm, having the cover side continued to the tip side and formed into a shape with its diameter reduced as compared with the maximum diameter of the tip side, and having translucency; a curvature-shaped fluorescent lamp having filament electrodes sealed at both ends of a bulb having a tube diameter of 6-12 mm and a tube length of 200-420 mm, having a rare gas and mercury enclosed in its inside, and housed in the envelope by arranging the spirally bent bulb in the circumferential direction of the globe at the tip of the globe; and a lighting circuit composed by mounting high-frequency inverter circuit components for lighting the fluorescent lamp on a circuit board, and housed in the envelope. Thereby, its application range to a luminaire for an incandescent bulb can be expanded. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、蛍光ランプを使用する電球形蛍光ランプに関する。 The present invention relates to a bulb-type fluorescent lamp using a fluorescent lamp.

従来、放電管を鞍形やＵ字形に屈曲して１本の屈曲形の放電路を形成した電球形蛍光ランプがある。   Conventionally, there is a bulb-type fluorescent lamp in which a discharge tube is bent into a bowl shape or a U shape to form a single bent discharge path.

このような電球形蛍光ランプは、口金を有するカバーとこのカバーに固着された透光性を有するグローブとから外囲器が形成され、この外囲器内に鞍型の蛍光ランプおよび点灯回路を保持したホルダが収容される（例えば、特許文献１参照）。   In such a bulb-type fluorescent lamp, an envelope is formed from a cover having a base and a translucent glove fixed to the cover, and a saddle-type fluorescent lamp and a lighting circuit are provided in the envelope. The held holder is accommodated (see, for example, Patent Document 1).

そして、電球形蛍光ランプの外囲器の形状は、円筒状に細長い形状や球状に丸い形状であり、白熱電球の規格形状とは異なっている。また、外囲器の寸法は、口金を含む高さが１８３mm程度、直径が７０mm程度であり、白熱電球の規格寸法である口金を含む高さが１１０mm程度、直径が６０mm程度よりも大きい寸法になっている。
特開昭６３−２４５８０４号公報 The shape of the envelope of the bulb-type fluorescent lamp is a cylindrical elongated shape or a spherical round shape, which is different from the standard shape of an incandescent bulb. The dimensions of the envelope are about 183 mm in height including the base and about 70 mm in diameter. The height including the base, which is the standard dimension for incandescent bulbs, is about 110 mm, and the diameter is larger than about 60 mm. It has become.
JP-A 63-245804

従来の電球形蛍光ランプでは、白熱電球の規格形状とは異なり、白熱電球の規格寸法内にも収まらず、白熱電球を使用する照明器具への適用範囲が制限されている。   Unlike the standard shape of an incandescent bulb, the conventional bulb-type fluorescent lamp does not fit within the standard dimensions of an incandescent bulb, and the range of application to lighting equipment that uses the incandescent bulb is limited.

本発明は、このような点に鑑みなされたもので、白熱電球の規格に収まる電球形蛍光ランプを提供することを目的とする。   This invention is made | formed in view of such a point, and it aims at providing the light bulb-type fluorescent lamp which is settled in the specification of an incandescent light bulb.

請求項１記載の電球形蛍光ランプは、電球用口金を有するカバー、およびこのカバーに取り付けられ、先端側がほぼ球状であって、直径が６０ｍｍ程度であり、カバー側が先端側に連続するとともに先端側の最大直径よりも縮径された形状に形成された透光性を有するグローブを備えた外囲器と；管径６〜１２ｍｍ、管長２００〜４２０ｍｍのバルブの両端にフィラメント電極が封装されるとともに内部に希ガスおよび水銀が封入され、螺旋状に屈曲されたバルブをグローブ周方向に配置して外囲器内に収容された屈曲形状の蛍光ランプと；蛍光ランプを点灯させる高周波インバータ回路部品を回路基板に実装して構成され、外囲器内に収容された点灯回路と；を具備していることを特徴とするものであり、白熱電球の規格寸法内に収められている。   The bulb-type fluorescent lamp according to claim 1 is attached to the cover having a bulb cap, the tip side is substantially spherical, the diameter is about 60 mm, the cover side is continuous with the tip side, and the tip side An envelope having a translucent glove formed in a shape smaller than the maximum diameter of the tube; filament electrodes sealed at both ends of a bulb having a tube diameter of 6 to 12 mm and a tube length of 200 to 420 mm A bent fluorescent lamp in which a rare gas and mercury are enclosed and spirally bent bulbs are arranged in the circumferential direction of the globe; and a high-frequency inverter circuit component for lighting the fluorescent lamp; A lighting circuit that is mounted on a circuit board and housed in an envelope, and is housed within the standard dimensions of an incandescent light bulb. There.

請求項２記載の電球形蛍光ランプは、請求項１記載の電球形蛍光ランプにおいて、点灯回路と蛍光ランプとを含めた装置全体の入力電力は８〜２０Ｗであることを特徴とするものである。入力電力が８〜２０Ｗの蛍光ランプにより、４０〜８０Ｗの白熱電球の明るさが得られる。   The light bulb shaped fluorescent lamp according to claim 2 is characterized in that, in the light bulb shaped fluorescent lamp according to claim 1, the input power of the entire apparatus including the lighting circuit and the fluorescent lamp is 8 to 20 W. . A fluorescent lamp with an input power of 8 to 20 W can provide brightness of an incandescent bulb of 40 to 80 W.

請求項１記載の電球形蛍光ランプによれば、電球用口金を有するカバー、およびカバーに取り付けられ、先端側がほぼ球状であって、直径が６０ｍｍ程度であり、カバー側が先端側に連続するとともに先端側の最大直径よりも縮径された形状に形成された透光性を有するグローブを備えた外囲器と、管径６〜１２ｍｍ、管長２００〜４２０ｍｍのバルブの両端にフィラメント電極が封装されるとともに、内部に希ガスおよび水銀が封入され、グローブの先端に螺旋状に屈曲されたバルブをグローブの周方向に配置して外囲器内に収容された屈曲形状の蛍光ランプと、蛍光ランプを点灯させる高周波インバータ回路部品を回路基板に実装して構成され、外囲器内に収容された点灯回路とを備えるため、白熱電球用の照明器具への適用範囲を広めることができる。   According to the light bulb shaped fluorescent lamp according to claim 1, the cover having the cap for the light bulb and the cover is attached to the cover, the tip side is substantially spherical, the diameter is about 60 mm, the cover side is continuous with the tip side, and the tip Filament electrodes are sealed at both ends of an envelope having a translucent glove formed in a shape smaller than the maximum diameter on the side, and a bulb having a tube diameter of 6 to 12 mm and a tube length of 200 to 420 mm. In addition, a bent fluorescent lamp enclosed in an envelope with a rare gas and mercury sealed inside and a bulb bent spirally at the tip of the globe is disposed in the circumferential direction of the globe, and a fluorescent lamp. A high-frequency inverter circuit component to be lit is mounted on a circuit board and is equipped with a lighting circuit housed in an envelope, thus broadening the range of application to lighting fixtures for incandescent bulbs. It is possible.

請求項２記載の電球形蛍光ランプによれば、請求項１記載の電球形蛍光ランプの効果に加えて、入力電力が８〜２０Ｗの蛍光ランプにより、４０〜８０Ｗの白熱電球の明るさが得られ、省電力化を図れる。   According to the light bulb shaped fluorescent lamp according to claim 2, in addition to the effect of the light bulb shaped fluorescent lamp according to claim 1, the brightness of the incandescent light bulb of 40 to 80 W is obtained by the fluorescent lamp with the input power of 8 to 20 W. Power saving.

以下、本発明の電球形蛍光ランプの一実施の形態の構成を図面を参照して説明する。   Hereinafter, the configuration of an embodiment of a light bulb-type fluorescent lamp of the present invention will be described with reference to the drawings.

まず、第１の実施の形態を図１および図２に示す。図１は電球形蛍光ランプの断面図、図２は電球形蛍光ランプの発光特性を示すグラフである。   First, FIG. 1 and FIG. 2 show a first embodiment. FIG. 1 is a cross-sectional view of a bulb-type fluorescent lamp, and FIG. 2 is a graph showing the light emission characteristics of the bulb-type fluorescent lamp.

図１において、11は外囲器で、この外囲器11は、口金12を有するカバー13と透光性を有するグローブ14とから白熱電球の規格形状に形成されているとともに、口金12を含む高さＬが１１０mm程度、直径Ｄが６０mm程度、容積が１００cm3程度の白熱電球の規格寸法に形成されている。 In FIG. 1, reference numeral 11 denotes an envelope, and the envelope 11 is formed in a standard shape of an incandescent lamp from a cover 13 having a base 12 and a light-transmitting globe 14, and includes the base 12. It is formed in the standard dimensions of an incandescent lamp having a height L of about 110 mm, a diameter D of about 60 mm, and a volume of about 100 cm 3 .

カバー13は、ＰＢＴ樹脂などの耐熱性合成樹脂にて形成され、カバー13の一端には口金12との結合用の円筒部15が一体形成され、他端にはグローブ14と嵌合される円筒状のカバー部16が形成されている。円筒部15にはエジソンタイプのＥ２６型などのねじ込み型の口金12が被着されるとともに接着剤またはかしめなどによって固定されている。   The cover 13 is formed of a heat-resistant synthetic resin such as PBT resin. A cylindrical portion 15 for coupling to the base 12 is integrally formed at one end of the cover 13 and a cylinder fitted to the globe 14 at the other end. A cover 16 is formed. A screw-type base 12 such as an Edison type E26 type is attached to the cylindrical portion 15 and is fixed by an adhesive or caulking.

グローブ14は、透明または光拡散性の合成樹脂またはガラスにて、カバー13のカバー部16に嵌合される開口部17を有するほぼ球状に形成され、開口部17の縁部にはカバー部16の内側に嵌合して接着剤などによって固定される嵌合部18が形成されている。   The globe 14 is made of a transparent or light diffusing synthetic resin or glass and is formed in a substantially spherical shape having an opening 17 fitted to the cover portion 16 of the cover 13, and the cover portion 16 is provided at the edge of the opening 17. A fitting portion 18 is formed which is fitted inside and fixed by an adhesive or the like.

また、カバー13内には、点灯回路としてのインバータ回路19が収容されている。このインバータ回路19は、２枚の回路基板20にトランジスタインバータを用いた高周波点灯用の回路部品21が実装されて構成されている。２枚の回路基板20は並行してカバー13の長手方向に沿って機械的に支持され、インバータ回路19の電源入力部が口金12と電気的に接続されている。   In addition, an inverter circuit 19 as a lighting circuit is accommodated in the cover 13. The inverter circuit 19 is configured by mounting circuit components 21 for high-frequency lighting using transistor inverters on two circuit boards 20. The two circuit boards 20 are mechanically supported along the longitudinal direction of the cover 13 in parallel, and the power input portion of the inverter circuit 19 is electrically connected to the base 12.

また、外囲器11内にはインバータ回路19側に支持されて蛍光ランプ22が収容されている。この蛍光ランプ22は、ガラス製のバルブ23を有し、バルブ23の内面に蛍光体膜が形成されるとともに内部にアルゴンなどの希ガスおよび水銀が封入され、両端23a ，23b にはフィラメント電極24が封装されている。   The envelope 11 accommodates a fluorescent lamp 22 supported on the inverter circuit 19 side. This fluorescent lamp 22 has a glass bulb 23, a phosphor film is formed on the inner surface of the bulb 23, and a rare gas such as argon and mercury are enclosed inside, and both ends 23a, 23b have filament electrodes 24. Is sealed.

バルブ23の一端23a および他端23b がインバータ回路19側に機械的に支持され、各フィラメント電極24に接続された図示しない外部リード線がインバータ回路19の高周波出力部に電気的に接続されている。   One end 23a and the other end 23b of the valve 23 are mechanically supported on the inverter circuit 19 side, and external lead wires (not shown) connected to the filament electrodes 24 are electrically connected to the high-frequency output section of the inverter circuit 19. .

バルブ23は、バルブ管外径が６〜１２mm、バルブ肉厚が０．７５mmで、バルブ管長が２００〜４００mmであり、一端23a 側から螺旋状に屈曲される螺旋部25が形成されているとともに、その螺旋部25の先端部26から他端23b 側に向けて螺旋部25のほぼ中心軸を通る戻り部27が形成されており、これによって１本の蛇行状の放電路が形成されている。先端部26には、バルブ23内の空気の排気および希ガスの封入後に封止される排気部28が位置する。   The valve 23 has a valve pipe outer diameter of 6 to 12 mm, a valve wall thickness of 0.75 mm, a valve pipe length of 200 to 400 mm, and a spiral portion 25 that is bent spirally from the one end 23a side. A return portion 27 passing through the substantially central axis of the spiral portion 25 is formed from the distal end portion 26 to the other end 23b side of the spiral portion 25, thereby forming a meandering discharge path. . At the distal end portion 26, an exhaust portion 28 that is sealed after exhausting the air in the valve 23 and sealing the rare gas is positioned.

そして、インバータ回路19からの出力はランプ電流９０〜２２０mA、ランプ電圧８０〜１１０Ｖであり、約４５kHz の高周波で蛍光ランプ22へ入力される。蛍光ランプ装置全体の入力電力は８〜２０Ｗ程度である。また、蛍光ランプ22は、口金12を含む高さＬが１１０mmおよび直径Ｄが６０mmの範囲内に収納されるように高密度に形成、配設される。   The output from the inverter circuit 19 is a lamp current of 90 to 220 mA and a lamp voltage of 80 to 110 V, and is input to the fluorescent lamp 22 at a high frequency of about 45 kHz. The input power of the entire fluorescent lamp device is about 8 to 20W. The fluorescent lamps 22 are formed and arranged at a high density so that the height L including the base 12 is 110 mm and the diameter D is 60 mm.

また、カバー13とグローブ14と間には、インバータ回路19が収容される点灯回路収容空間ｂと蛍光ランプ22が収容される蛍光ランプ収容空間ａとを仕切る仕切板29が配設されている。この仕切板29は、円板状に形成され、バルブ23の両端23a ，23b が挿通される挿通孔30a ，30b が形成されている。仕切板29はカバー13のカバー部16の内周面に接合されて接着剤などによって固定されている。   Further, a partition plate 29 is provided between the cover 13 and the globe 14 to partition the lighting circuit housing space b in which the inverter circuit 19 is housed and the fluorescent lamp housing space a in which the fluorescent lamp 22 is housed. The partition plate 29 is formed in a disc shape, and has insertion holes 30a and 30b through which both ends 23a and 23b of the valve 23 are inserted. The partition plate 29 is joined to the inner peripheral surface of the cover portion 16 of the cover 13 and fixed by an adhesive or the like.

そして、仕切板29によって仕切られる蛍光ランプ収容空間ａの容積をＡ、点灯回路収容空間ｂの容積をＢとすると、Ａ／Ｂ≧２、という容積の関係に形成されている。   When the volume of the fluorescent lamp housing space a partitioned by the partition plate 29 is A and the volume of the lighting circuit housing space b is B, the relationship is A / B ≧ 2.

以上のように構成された電球形蛍光ランプでは、口金12を含む高さが１１０mmおよび直径が６０mmの範囲内に高密度に屈曲形成されたバルブ23を有する蛍光ランプ22を備えるとともに、この蛍光ランプ22を収容する白熱電球形状の外囲器11を備えるため、白熱電球の規格寸法内に収めることができるとともに、白熱電球の規格形状に適合でき、外観も白熱電球と同様なので違和感がなく、白熱電球用の照明器具への適用範囲を広めることができる。   The light bulb-type fluorescent lamp configured as described above includes a fluorescent lamp 22 having a bulb 23 that is bent at a high density within a range of 110 mm in height and 60 mm in diameter including the base 12, and this fluorescent lamp. The incandescent bulb-shaped envelope 11 that accommodates 22 can be accommodated within the standard dimensions of incandescent bulbs, and can conform to the standard shape of incandescent bulbs. The range of application to lighting equipment for light bulbs can be widened.

しかも、蛍光ランプ22は、入力電力が８〜２０Ｗで４０〜８０Ｗ相当の白熱電球に相当する４００〜１０００lmの明るさが得られ、省電力化を図れる。   In addition, the fluorescent lamp 22 has an input power of 8 to 20 W and a brightness of 400 to 1000 lm corresponding to an incandescent bulb equivalent to 40 to 80 W, so that power saving can be achieved.

さらに、蛍光ランプ22のバルブ23が、一端23a 側が螺旋状に屈曲されるとともに、他端23b 側が螺旋のほぼ中心軸に通されているため、蛍光ランプ22の点灯時の配光を均一にできる。   Further, since the bulb 23 of the fluorescent lamp 22 is bent at one end 23a in a spiral shape and the other end 23b is passed through the substantially central axis of the spiral, the light distribution when the fluorescent lamp 22 is turned on can be made uniform. .

また、蛍光ランプ22のバルブ23の中心軸の先端に排気部28が形成されるため、バルブ23のフィラメント電極24を有する端部に設ける場合に比べて、バルブ23の端部の構造を簡単にできるとともに容易に製造できる。   Further, since the exhaust portion 28 is formed at the tip of the central axis of the bulb 23 of the fluorescent lamp 22, the structure of the end portion of the bulb 23 can be simplified compared to the case where the bulb 23 is provided at the end portion having the filament electrode 24. And can be easily manufactured.

また、インバータ回路19の回路部品21を搭載する２枚の回路基板20が並行してカバー13の長手方向に沿って配設されるため、効率的に実装できる。   In addition, since the two circuit boards 20 on which the circuit components 21 of the inverter circuit 19 are mounted are arranged along the longitudinal direction of the cover 13 in parallel, it can be efficiently mounted.

ところで、蛍光ランプ収容空間ａの蛍光ランプ22から発生する熱と点灯回路収容空間ｂのインバータ回路19から発生する熱とが仕切板29を通じて互いに輻射熱として伝わる。一般に、蛍光ランプ収容空間ａより点灯回路収容空間ｂの発熱が大きいために、点灯回路収容空間ｂの熱が蛍光ランプ収容空間ａに流れ込む。従来の蛍光ランプ装置の蛍光ランプ収容空間ａの容積Ａと点灯回路収容空間ｂの容積Ｂとの容積比は、Ａ／Ｂ＝１．５〜１．８程度であったが、この容積比では、点灯回路収容空間ｂからの熱により蛍光ランプ収容空間ａの温度が上昇し、周囲温度に影響されやすい蛍光ランプ22の特性に悪影響、例えば、図２に示すように、発光効率の低下が生じることが実験によりわかった。   By the way, heat generated from the fluorescent lamp 22 in the fluorescent lamp accommodating space a and heat generated from the inverter circuit 19 in the lighting circuit accommodating space b are transmitted as radiant heat through the partition plate 29. In general, since the lighting circuit housing space b generates more heat than the fluorescent lamp housing space a, the heat of the lighting circuit housing space b flows into the fluorescent lamp housing space a. The volume ratio of the volume A of the fluorescent lamp housing space a and the volume B of the lighting circuit housing space b of the conventional fluorescent lamp device was about A / B = 1.5 to 1.8. The temperature of the fluorescent lamp housing space a rises due to the heat from the lighting circuit housing space b, which adversely affects the characteristics of the fluorescent lamp 22 that is easily affected by the ambient temperature, for example, as shown in FIG. It was found by experiment.

そこで、本実施の形態の蛍光ランプ装置では、蛍光ランプ収容空間ａの容積Ａと点灯回路収容空間ｂの容積Ｂとの容積比を、Ａ／Ｂ≧２とした。この容積比により、点灯回路収容空間ｂからの熱による蛍光ランプ収容空間ａの温度上昇が減少し、図２に示すように、蛍光ランプ22の発光効率が従来に比べて約２０％程度向上させることができる。   Therefore, in the fluorescent lamp device of the present embodiment, the volume ratio between the volume A of the fluorescent lamp housing space a and the volume B of the lighting circuit housing space b is set to A / B ≧ 2. With this volume ratio, the temperature rise in the fluorescent lamp housing space a due to heat from the lighting circuit housing space b is reduced, and as shown in FIG. 2, the luminous efficiency of the fluorescent lamp 22 is improved by about 20% compared to the conventional case. be able to.

次に、第２の実施の形態を図３に示す。図３は電球形蛍光ランプの蛍光ランプの底面図である。   Next, a second embodiment is shown in FIG. FIG. 3 is a bottom view of the fluorescent lamp of the bulb-type fluorescent lamp.

蛍光ランプ22のバルブ23は、インバータ回路19側の一端23a からほぼＵ字状に屈曲されるとともにその逆方向にほぼＵ字状に屈曲されるというように蛇行状に屈曲を複数回順次繰り返して、他端23b がインバータ回路19側に戻り、かつ、全体としてほぼ円筒状に配置される。   The bulb 23 of the fluorescent lamp 22 is bent in a meandering manner so that it is bent in a substantially U shape from one end 23a on the inverter circuit 19 side and bent in a substantially U shape in the opposite direction. The other end 23b returns to the inverter circuit 19 side and is disposed in a substantially cylindrical shape as a whole.

このようなバルブ23の屈曲形状によっても、口金12を含む高さＬが１１０mmおよび直径Ｄが６０mmの白熱電球の規格寸法の範囲内に高密度に配置でき、図１に示す第１の実施の形態の外囲器11内に収容することができる。   Even with such a bent shape of the bulb 23, the bulb can be arranged at a high density within the range of the standard dimensions of an incandescent bulb having a height L including the base 12 of 110 mm and a diameter D of 60 mm. The first embodiment shown in FIG. It can be accommodated in the envelope 11 in the form.

次に、第３の実施の形態を図４および図５に示す、図４は蛍光ランプの一部の斜視図、図５は図４のＡ−Ａ断面図である。   Next, FIG. 4 and FIG. 5 show a third embodiment. FIG. 4 is a perspective view of a part of the fluorescent lamp, and FIG. 5 is a cross-sectional view taken along line AA of FIG.

蛍光ランプ22のバルブ23は、ほぼＵ字状に屈曲された第１の屈曲管部31とほぼＵ字状に屈曲された第２の屈曲管部32とを備え、両屈曲管部31，32の一方の端部間が中央屈曲部33を介して連通されて、１本の蛇行した放電路が形成され、かつ、屈曲管部31，32が交差状に配置されて、第２の屈曲管部32の頂部が第１の屈曲管部31の内側を通されている。第２の屈曲管部32の第１の屈曲管部31の内側を通る部分には、細管状のブリッヂ部32a が形成されている。   The bulb 23 of the fluorescent lamp 22 includes a first bent tube portion 31 bent in a substantially U shape and a second bent tube portion 32 bent in a substantially U shape. One end portion of the second bent tube is communicated via the central bent portion 33 to form one meandering discharge path, and the bent tube portions 31 and 32 are arranged in an intersecting manner to form the second bent tube. The top of the portion 32 is passed through the inside of the first bent tube portion 31. A thin tubular bridge portion 32a is formed at a portion passing through the inside of the first bent tube portion 31 of the second bent tube portion 32.

このようなバルブ23の屈曲形状によって、図５に示すように、両屈曲管部31，32を互いに近接配置できるため、口金12を含む高さＬが１１０mmおよび直径Ｄが６０mmの白熱電球の規格寸法の範囲内に高密度に配置でき、図１に示す第１の実施の形態の外囲器11内に収容することができる。   With such a bent shape of the bulb 23, as shown in FIG. 5, the bent tube portions 31, 32 can be arranged close to each other. Therefore, a standard for an incandescent lamp having a height L including the base 12 of 110 mm and a diameter D of 60 mm is provided. It can arrange | position with high density within the range of a dimension, and can be accommodated in the envelope 11 of 1st Embodiment shown in FIG.

次に、第４の実施の形態を図６に示す。図６は電球形蛍光ランプの蛍光ランプの一部の側面図である。   Next, a fourth embodiment is shown in FIG. FIG. 6 is a side view of a part of the fluorescent lamp of the bulb-type fluorescent lamp.

蛍光ランプ22のバルブ23は、先端側を連通する細い連通管41a を介してほぼＨ字状に形成された第１の屈曲管部41と先端側を連通する細い連通管42a を介してほぼＨ字状に形成された第２の屈曲管部42とを備え、各屈曲管部41，42の一方の端部間が図示しない中央連通管（図５に示す第３の実施の形態の中央屈曲部33に相当する）を介して連通されて、１本の放電路が形成され、かつ、屈曲管部41，42が交差状に配置されて、第２の屈曲管部42の連通管42a が第１の屈曲管部41の内側を通されている。   The bulb 23 of the fluorescent lamp 22 is substantially H through a first bent tube portion 41 formed in an approximately H shape via a thin communication tube 41a communicating with the tip side and a thin communication tube 42a communicating with the tip side. A second bent pipe portion 42 formed in a letter shape, and a central communication pipe (not shown) between the one end portions of the bent pipe portions 41 and 42 (the central bent pipe of the third embodiment shown in FIG. 5). A discharge path is formed, the bent tube portions 41 and 42 are arranged in a crossing manner, and a communication tube 42a of the second bent tube portion 42 is formed. The inside of the first bent pipe portion 41 is passed through.

このようなバルブ23の屈曲形状によって、両屈曲管部41，42を互いに近接配置できるため、口金12を含む高さＬが１１０mmおよび直径Ｄが６０mmの白熱電球の規格寸法の範囲内に高密度に配置でき、図１に示す第１の実施の形態の外囲器11内に収容することができる。   Because of the bent shape of the bulb 23, the bent tube portions 41 and 42 can be arranged close to each other, so that the height L including the base 12 is 110 mm and the diameter D is 60 mm. And can be accommodated in the envelope 11 of the first embodiment shown in FIG.

次に、第５の実施の形態を図７に示す。図７は電球形蛍光ランプの蛍光ランプの底面図である。   Next, a fifth embodiment is shown in FIG. FIG. 7 is a bottom view of the fluorescent lamp of the bulb-type fluorescent lamp.

蛍光ランプ22のバルブ23は、近接配置される４本の管部51を有し、隣接する管部を細い連通管52で連通されて、１本の放電路が形成されている。   The bulb 23 of the fluorescent lamp 22 has four tube portions 51 arranged close to each other, and the adjacent tube portions are communicated with each other by a thin communication tube 52 to form one discharge path.

このようなバルブ23の屈曲形状によって、４本の管部51を互いに近接配置できるため、口金12を含む高さＬが１１０mmおよび直径Ｄが６０mmの白熱電球の規格寸法の範囲内に高密度に配置でき、図１に示す第１の実施の形態の外囲器11内に収容することができる。   Because of the bent shape of the bulb 23, the four pipe portions 51 can be arranged close to each other, so that the height L including the base 12 is 110 mm and the diameter D is 60 mm. It can arrange | position and can accommodate in the envelope 11 of 1st Embodiment shown in FIG.

なお、蛍光ランプ22としては、前記実施の形態の他、バルブ23の両端23a ，23b に冷陰極電極を封装したものや、無電極形蛍光ランプを用いてもよい。   As the fluorescent lamp 22, in addition to the above embodiment, a cold cathode electrode sealed at both ends 23a and 23b of the bulb 23 or an electrodeless fluorescent lamp may be used.

次に、第６の実施の形態を図８に示す。図８は電球形蛍光ランプの側面図である。   Next, a sixth embodiment is shown in FIG. FIG. 8 is a side view of the bulb-type fluorescent lamp.

外囲器11のグローブ14は、このグローブ14のほぼ最大直径の部分で基端側分割部14a と先端側分割部14b とに２分割形成されている。   The globe 14 of the envelope 11 is divided into two parts, that is, a base end side split portion 14a and a tip end side split portion 14b at the portion of the globe 14 having the largest diameter.

そして、蛍光ランプ装置の組立時には、カバー13と基端側分割部14a とを嵌合固定し、基端側分割部14a の最大直径の開口部分から蛍光ランプ22を挿入装着した後、蛍光ランプ22を覆って先端側分割部14b を基端側分割部14a に嵌合し、嵌合部分を接着剤などによって固定する。   When the fluorescent lamp device is assembled, the cover 13 and the base end side divided portion 14a are fitted and fixed, and the fluorescent lamp 22 is inserted and attached through the opening portion having the maximum diameter of the base end side split portion 14a. The distal end side divided portion 14b is fitted into the proximal end side divided portion 14a, and the fitted portion is fixed with an adhesive or the like.

このように、グローブ14のほぼ最大直径の部分で２分割形成することにより、グローブ14内の空間を最大限に利用して蛍光ランプ22の形状、寸法を設定できる。すなわち、グローブ14の開口部17を通じてグローブ14内に蛍光ランプ22を収納する構造では、蛍光ランプ22が開口部17を挿通可能とする形状、寸法に規制されるが、本実施の形態のように、グローブ14のほぼ最大直径の部分で２分割形成した構造では、グローブ14内に収容可能とする形状、寸法の範囲にあれば、そのグローブ14内の空間を最大限に利用した形状、寸法の蛍光ランプ22でもグローブ14内に収容できる。例えば図１に示す電球形蛍光ランプのように、グローブ14の回転軸と直交する方向を軸とした螺旋形状バルブを有する蛍光ランプ22が収容可能である。   In this way, by forming the globe 14 into two parts at almost the maximum diameter, the shape and dimensions of the fluorescent lamp 22 can be set using the space in the globe 14 to the maximum extent. That is, in the structure in which the fluorescent lamp 22 is housed in the globe 14 through the opening 17 of the globe 14, the shape and size are restricted so that the fluorescent lamp 22 can be inserted through the opening 17, but as in the present embodiment In the structure of the globe 14 divided into two parts at almost the maximum diameter, the shape and dimensions of the globe 14 that make maximum use of the space within the globe 14 can be accommodated within the shape and dimensions that can be accommodated in the globe 14. Even the fluorescent lamp 22 can be accommodated in the globe 14. For example, a fluorescent lamp 22 having a spiral bulb with a direction orthogonal to the rotation axis of the globe 14 as the bulb-type fluorescent lamp shown in FIG. 1 can be accommodated.

したがって、グローブ14のほぼ最大直径の部分で２分割形成することにより、蛍光ランプ装置を白熱電球の規格寸法内に収めるように小形化しても、蛍光ランプ22の形状、寸法を有効に設定することより、ランプ性能を向上させることができる。   Therefore, the shape and size of the fluorescent lamp 22 can be effectively set even if the fluorescent lamp device is reduced in size to fit within the standard size of the incandescent lamp by forming the globe 14 in the almost maximum diameter portion. Accordingly, the lamp performance can be improved.

本発明の第１の実施の形態を示す電球形蛍光ランプの断面図である。1 is a cross-sectional view of a bulb-type fluorescent lamp showing a first embodiment of the present invention. 同上実施の形態の電球形蛍光ランプの発光特性を示すグラフである。It is a graph which shows the light emission characteristic of the lightbulb-type fluorescent lamp of embodiment same as the above. 本発明の第２の実施の形態を示す電球形蛍光ランプの蛍光ランプの底面図である。It is a bottom view of the fluorescent lamp of the bulb-type fluorescent lamp showing the second embodiment of the present invention. 本発明の第３の実施の形態を示す電球形蛍光ランプの蛍光ランプの一部の斜視図である。It is a one part perspective view of the fluorescent lamp of the bulb-type fluorescent lamp which shows the 3rd Embodiment of this invention. 同上実施の形態の図４のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 4 of embodiment same as the above. 本発明の第４の実施の形態を示す電球形蛍光ランプの蛍光ランプの一部の側面図である。It is a side view of a part of a fluorescent lamp of a bulb-type fluorescent lamp showing a fourth embodiment of the present invention. 本発明の第５の実施の形態を示す電球形蛍光ランプの蛍光ランプの底面図である。It is a bottom view of the fluorescent lamp of the bulb-type fluorescent lamp showing the fifth embodiment of the present invention. 本発明の第６の実施の形態を示す電球形蛍光ランプの側面図である。It is a side view of the lightbulb-type fluorescent lamp which shows the 6th Embodiment of this invention.

符号の説明Explanation of symbols

11 外囲器、12 口金、13 カバー、14 グローブ、
19 点灯回路としてのインバータ回路、20 回路基板、22 蛍光ランプ、
23 バルブ、28 排気部、29 仕切板、ａ 蛍光ランプ収容空間 11 envelope, 12 base, 13 cover, 14 gloves,
19 Inverter circuit as lighting circuit, 20 circuit board, 22 fluorescent lamp,
23 Bulb, 28 Exhaust section, 29 Partition plate, a Fluorescent lamp housing space

Claims (2)

電球用口金を有するカバー、およびこのカバーに取り付けられ、先端側がほぼ球状であって、直径が６０ｍｍ程度であり、カバー側が先端側に連続するとともに先端側の最大直径よりも縮径された形状に形成された透光性を有するグローブを備えた外囲器と；
管径６〜１２ｍｍ、管長２００〜４２０ｍｍのバルブの両端にフィラメント電極が封装されるとともに内部に希ガスおよび水銀が封入され、螺旋状に屈曲されたバルブをグローブ周方向に配置して外囲器内に収容された屈曲形状の蛍光ランプと；
蛍光ランプを点灯させる高周波インバータ回路部品を回路基板に実装して構成され、外囲器内に収容された点灯回路と；
を具備していることを特徴とする電球形蛍光ランプ。 A cover having a cap for a light bulb, and a shape attached to the cover, having a substantially spherical tip side, a diameter of about 60 mm, the cover side continuing to the tip side, and having a diameter smaller than the maximum diameter on the tip side An envelope with a formed translucent glove;
A filament electrode is sealed at both ends of a valve having a tube diameter of 6 to 12 mm and a tube length of 200 to 420 mm, a rare gas and mercury are enclosed therein, and a spirally bent valve is disposed in the circumferential direction of the globe. A bent fluorescent lamp housed inside;
A lighting circuit configured by mounting a high-frequency inverter circuit component for lighting a fluorescent lamp on a circuit board and housed in an envelope;
A bulb-type fluorescent lamp characterized by comprising: 点灯回路と蛍光ランプとを含めた装置全体の入力電力は８〜２０Ｗであることを特徴とする請求項１記載の電球形蛍光ランプ。



















2. The light bulb shaped fluorescent lamp according to claim 1, wherein the input power of the entire apparatus including the lighting circuit and the fluorescent lamp is 8 to 20 W.



















JP2004319967A 2004-11-04 2004-11-04 Compact self-ballasted fluorescent lamp Pending JP2005123200A (en)

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