JPS61179515A - Manufacture of ballast - Google Patents

Manufacture of ballast

Info

Publication number
JPS61179515A
JPS61179515A JP59186350A JP18635084A JPS61179515A JP S61179515 A JPS61179515 A JP S61179515A JP 59186350 A JP59186350 A JP 59186350A JP 18635084 A JP18635084 A JP 18635084A JP S61179515 A JPS61179515 A JP S61179515A
Authority
JP
Japan
Prior art keywords
core
adhesive
rising portion
ballast
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59186350A
Other languages
Japanese (ja)
Inventor
Noboru Matsumoto
登 松本
Yasuo Kojima
小島　八州男
Akira Mizoo
明 溝尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Lighting Ltd
Original Assignee
Hitachi Lighting Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Lighting Ltd filed Critical Hitachi Lighting Ltd
Priority to JP59186350A priority Critical patent/JPS61179515A/en
Publication of JPS61179515A publication Critical patent/JPS61179515A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

PURPOSE:To prevent vibration at the ends of a core and in a rising portion of a mounting base, by dropping a low-viscosity liquid adhesive onto a core joining section on the inner face of the rising portion of the base and then bonding the core to the base. CONSTITUTION:A core 2 on which a coil bobbin 1 is mounted is arranged in position on a mounting base 3. A low-viscosity (50Pls or less) liquid adhesive 6 is dropped from an adhesive supply nozzle 7 onto a core joining section on the inner surface of the rising portion 5 formed by bending the mounting base 3 along the side face of the core 2 thus arranged. The liquid adhesive can easily penetrate into the gap between the side face of the core 2 and the inner face of the rising portion 5 of the base 3 and into the gap between side leg joining sections of the E-shaped core 2. In the next pressing process, the rising portion 5 having a cover 4 put thereon is pressed against the core 2 while, at the same time, the end thereof is bent so as to be securely caulked to the core. The adhesive between the rising portion 5 and the core 2 and the adhesive in the side leg joining sections are thereby pressed and caused to penetrate into the respective gaps to enlarge the bonding area. The upper cover 4 is caulked to finish the assembly. The assembly is then removed from the process and the adhesive is let to cure of itself.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は放電灯安定器における騒音防止のための製造方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a manufacturing method for noise prevention in a discharge lamp ballast.

〔発明の背景〕[Background of the invention]

従来の放電灯安定器はその絶縁材料として一般に繊維質
絶縁物を使用しているため、上記安定器組立後にワニス
含浸処理を施し、繊維質絶縁物の絶縁強化をはかつてい
た。放電灯安定器のコアは通常Ｅ形コア同志、またはＥ
形と！形とのコアを突合わせた形状のものが用いられ、
上記Ｅ形コアの中央脚先端に空隙を設けて必要な電気特
性を得ている。上記の各コアの組立品において最も磁気
抵抗が大きく振動が多いのは、上記中央脚先端の空隙部
分であって、ついでＥ形コア側脚の接合した部分である
。そのため組立てに際しては、あらかじめ上記Ｅ形コア
中失脚の空隙部分に、外部に流出しないように高粘度の
液状接着剤を充填して固着し、上カバーと取付はベース
とで上記コアを挟着して組立てていた。なおＥ形コア側
脚が肖接する部分は、安定器組立後にワニス含浸するこ
とによってコア端部の振動と、該コア端部に接する取付
ベースの振動を防ぎ、騒音の低下を行っていた。繊維質
絶縁物を使用しない、例えば８種絶縁の放電灯安定器に
おいては、絶縁強化のためのワニス含浸処理を必要とし
ないけれども、上記のＥ形コア側脚部の振動を防止する
ため従来通りワニス含浸を行っているのが現状である。Conventional discharge lamp ballasts generally use a fibrous insulator as their insulating material, and therefore, after the ballast is assembled, a varnish impregnation treatment is performed to strengthen the insulation of the fibrous insulator. The core of a discharge lamp ballast is usually an E-shaped core, or an E
With shape! A shape with a core butted against the shape is used,
A gap is provided at the tip of the central leg of the E-shaped core to obtain the necessary electrical characteristics. In each of the core assemblies described above, the part with the highest magnetic resistance and the most vibration is the gap at the tip of the central leg, followed by the joined part of the E-shaped core side legs. Therefore, when assembling, fill the gap in the middle of the E-shaped core with a high-viscosity liquid adhesive to prevent it from leaking outside, and then sandwich the core between the upper cover and the base. I was assembling it. The part where the E-shaped core side leg touches is impregnated with varnish after the stabilizer is assembled to prevent vibration of the core end and the vibration of the mounting base that contacts the core end, thereby reducing noise. For discharge lamp ballasts that do not use fiber insulators, for example Class 8 insulation, varnish impregnation treatment to strengthen the insulation is not required, but in order to prevent the vibration of the E-shaped core side legs mentioned above, the conventional method is used. Currently, it is impregnated with varnish.

そのためワニス含浸、ワニス除滴、ワニス硬化の各工程
とこれに要する多くの工数を要し、多量生産を阻害する
とともに製造コストの低減が妨げられていた。Therefore, the steps of varnish impregnation, varnish removal, and varnish curing, and a large number of man-hours, are required, which impede mass production and reduce manufacturing costs.

〔発明の目的〕[Purpose of the invention]

本発明はワニス含浸を行わないで騒音を防止しする安定
器の製造方法を得ることを目的とする。The object of the present invention is to obtain a method for manufacturing a ballast that prevents noise without varnish impregnation.

〔発明の概要〕[Summary of the invention]

上記の目的を達成するために本発明による安定器の製造
方法は、繊維質絶縁物を使用しない放電灯用安定器の製
造方法においで、コイルを装着したコアを取付はペース
上に設置した状態で、コア側面に沿った取付はベースの
立上シ部内面のコア接合部に、低粘度（５０ポアズ以下
）の液状接着剤を滴下したのち、上記取付はベースの一
部を利用してコアを固着することによって、コア端部お
よび取付はベース立上シ部の振動を防止したものである
。In order to achieve the above object, the method for manufacturing a ballast according to the present invention is a method for manufacturing a ballast for a discharge lamp that does not use a fiber insulator, in which a core equipped with a coil is installed on a pace. For installation along the side of the core, drop a drop of low viscosity (less than 50 poise) liquid adhesive onto the core joint on the inner surface of the rising edge of the base. By fixing the core end and mounting, vibration of the base rising portion is prevented.

〔発明の実施例〕 つぎに本発明の実施例を図面とともに説明する。[Embodiments of the invention] Next, embodiments of the present invention will be described with reference to the drawings.

第１図は本発明による安定器の製造方法の一実施例を示
す図で、（ａ）は平面図、（ｂ）は正面図、（ｃ）は側
面図、第２図は上記実施例による安定器の分解側面図、
第３図は上記実施例による安定器の外観図で、（ａ）は
平面図、（ｂ）は正面図、（Ｃ）は側面図である。FIG. 1 is a diagram showing an embodiment of the method for manufacturing a ballast according to the present invention, in which (a) is a plan view, (b) is a front view, (c) is a side view, and FIG. 2 is a diagram according to the above embodiment. Exploded side view of the ballast,
FIG. 3 is an external view of the ballast according to the above embodiment, in which (a) is a plan view, (b) is a front view, and (C) is a side view.

放電灯安定器は第２図に示すように、コイルを巻いたコ
イルボビン１に、本実施例ではＥ形コア２の中央脚先端
に接着剤を塗布して両側から突合わせて挿入し、このコ
イルを装着したコア２を取付はベース３の定位置に設置
し、上カバー４をかぶせたのち、取付はベース８の立上
シ部５の一部先端を折曲げて、これらを第３図に示すよ
うに一体にかしめて固着している。上記の製造工程中、
第１図に示すようにコイルボビン１を装着したコア２を
取付はベース３の定位置に設置した状態で、コア２の側
面に沿って折曲げた取付はベース３の立上シ部５内面の
コア接合部に、低粘度（５０ポアズ以下）の液状接着剤
６を第１図（ｃ）に示すように接着剤供給ノズル７から
滴下する。上記液状接着剤は５０ポアズ以下の極めて低
粘度で流動性がよいものであるから、コア２の側面と取
付はベース８の立上り部５の内面との隙間、およびＥ形
コア２の側脚接合部の隙間に容易に５畳透する。その後
カバー４を載せた上記安定器の立上シ部５を、プレス工
程でコア２に圧接しながら上記立上シ部５の先端を折曲
げてかしめ固着する。この工程によって上記立上シ部５
とコア２の間の接着剤およびコア２の側脚描接部の接着
剤は圧せられてそれぞれの隙間に護透し接着面を拡大す
る。接着剤の粘度が５０ポアズをこえるときは隙間に対
するｙｉ透が十分に行われず、したがって接着面積の拡
がりも期待できず、またコア２の側脚当接部に影響を与
え安定器の電気特性に変化を生じることがあるので、液
状接着剤の粘度は５０ポアズ以下にする必要がある。上
カバー４のかしめ止めが終れば安定器の組立てが完了す
るので、工程から外して上記接着剤を自然に固化させれ
ばよい。従来のワニス含浸による場合は、ワニス含浸と
余分なワニスを除滴するのにそれぞれ１５分を要し、さ
らにワニスの硬化乾燥に１２０〜３６０分を必要とした
が、本発明によるときは接着剤を滴下する工数以外に上
記の各工数は不要になる。As shown in Fig. 2, the discharge lamp ballast is constructed by applying adhesive to the tip of the central leg of an E-shaped core 2 in this embodiment, and inserting the coil into a coil bobbin 1, as shown in Fig. 2. To install the core 2 with the attached core 2 installed, place it in a fixed position on the base 3, cover it with the upper cover 4, and then bend a part of the tip of the rising part 5 of the base 8 and attach them as shown in Figure 3. As shown, they are crimped and fixed together. During the above manufacturing process,
As shown in Fig. 1, the core 2 with the coil bobbin 1 attached is installed in a fixed position on the base 3, and the core 2 is bent along the side surface of the base 3. A liquid adhesive 6 of low viscosity (50 poise or less) is dripped onto the core joint from an adhesive supply nozzle 7 as shown in FIG. 1(c). Since the above liquid adhesive has extremely low viscosity of 50 poise or less and good fluidity, the side of the core 2 is attached to the gap between the inner surface of the rising portion 5 of the base 8 and the side leg joint of the E-shaped core 2. The 5 tatami mat can easily be seen through the gap between the parts. Thereafter, the rising edge portion 5 of the ballast on which the cover 4 is mounted is pressed against the core 2 in a pressing process, and the tip of the rising edge portion 5 is bent and caulked to be fixed. Through this process, the above-mentioned rising section 5
The adhesive between the core 2 and the side leg contact portion of the core 2 is pressed to protect the respective gaps and enlarge the adhesive surface. If the viscosity of the adhesive exceeds 50 poise, the penetration into the gap will not be sufficient, and therefore the adhesive area cannot be expected to expand, and it will also affect the side leg abutting parts of the core 2 and affect the electrical characteristics of the ballast. The viscosity of the liquid adhesive must be 50 poise or less, as this may cause changes in the temperature. Once the upper cover 4 has been caulked, the assembly of the stabilizer is completed, so it is sufficient to remove it from the process and allow the adhesive to harden naturally. In the case of conventional varnish impregnation, it took 15 minutes each to impregnate the varnish and remove excess varnish, and it also took 120 to 360 minutes to harden and dry the varnish, but in the case of the present invention, the adhesive The above-mentioned man-hours are no longer required in addition to the man-hours required to drop the liquid.

本発明の製造方法によって製造した安定器と従来方法で
製作した安定器の騒音測定結果を下表に示す。試料はい
ずれも２０Ｗ螢光灯用安定器を各５０個用い、騒音測定
個所は安定器の中央上方３０ｃｍの位置である。The table below shows the noise measurement results of the ballast manufactured by the manufacturing method of the present invention and the ballast manufactured by the conventional method. For each sample, 50 20W fluorescent lamp ballasts were used, and the noise measurement point was 30 cm above the center of the ballast.

なお本実施例の接着剤にはワニス系接着剤を用いた。騒
音測定値は表示のように従来品とほぼ同等の値が得られ
たが、本発明によるときは前記したようにワニスの含浸
、除滴、硬化の設備−切が不用となり、かつこれらに要
する熱源費が不要となるほか、ワニス含浸後に端子に付
着したワニスを除く別離作業が不要とな）、放電灯用安
定器の製造コスト低減に寄与する効果は極めて大きい。Note that a varnish-based adhesive was used as the adhesive in this example. As shown in the display, the noise measurement value was almost the same as that of the conventional product, but when using the present invention, as mentioned above, the equipment for varnish impregnation, drip removal, and curing is not required, and the required In addition to eliminating the cost of a heat source, there is no need to separate the varnish that adheres to the terminals after varnish impregnation), which has an extremely large effect in contributing to reducing the manufacturing cost of discharge lamp ballasts.

〔発明の効果〕〔Effect of the invention〕

上記のように本発明による安定器の製造方法は、繊維質
絶縁物を使用しない放電灯用安定器の製造方法においで
、コイルを装着したコアを取付はペース上に設置した状
態で、コア側面に沿った取付はペースの立上シ部内面の
コア接合部に、低粘度（５０ポアズ以下）の液状接着剤
を滴下したのち、上記取付はペースの一部を利用してコ
アを固着することによシ、上記コア接合部および取付け
ペース立上り部の内面とコアとの間に液状接着剤が透し
固化するため、ワニス含浸処理の各工程を取除いても、
上記各部の振動を防止し騒音の発生を低下させることが
できる。なお従来のワニス含浸処理の各工程および端子
のワニス別離工程が不要になるため、放電灯安定器の製
造コストを低減することができる。As described above, the method for manufacturing a ballast according to the present invention is a method for manufacturing a ballast for a discharge lamp that does not use a fibrous insulator. For installation along the line, drop a low viscosity (less than 50 poise) liquid adhesive onto the core joint on the inner surface of the rising edge of the pace, and then use part of the pace to fix the core. However, because the liquid adhesive permeates through and solidifies between the core and the inner surface of the core joint and the rising part of the mounting space, even if each step of the varnish impregnation treatment is removed,
It is possible to prevent the vibrations of the above-mentioned parts and reduce the generation of noise. Furthermore, since the conventional varnish impregnation process and the terminal varnish separation process are no longer necessary, the manufacturing cost of the discharge lamp ballast can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による安定器の製造方法の一実施例を示
す図で、（ａ）は平面図、（ｂ）は正面図、（ｃ）は側
面図、第２図は上記実施例による安定器の分解側面図、
第３図は上記実施例による安定器の外観図で、（ａ）は
平面図、（ｂ）は正面図、（ｃ）は側面図である。 ２・・・コア、３・・・取付はペース、５・・・立上シ
部、６・・・液状接着剤。FIG. 1 is a diagram showing an embodiment of the method for manufacturing a ballast according to the present invention, in which (a) is a plan view, (b) is a front view, (c) is a side view, and FIG. 2 is a diagram according to the above embodiment. Exploded side view of the ballast,
FIG. 3 is an external view of the ballast according to the above embodiment, in which (a) is a plan view, (b) is a front view, and (c) is a side view. 2...Core, 3...Pace for installation, 5...Rise part, 6...Liquid adhesive.

Claims (1)

【特許請求の範囲】[Claims] 繊維質絶縁物を使用しない放電灯用安定器の製造方法に
おいで、コイルを装着したコアを取付けベース上に設置
した状態で、コア側面に沿つた取付けベースの立上り部
内面のコア接合部に、低粘度（５０ポアズ以下）の液状
接着剤を滴下したのち、上記取付けベースの一部を利用
してコアを固着することを特徴とする安定器の製造方法
。In a method for manufacturing a ballast for a discharge lamp that does not use fiber insulators, with the core equipped with a coil installed on the mounting base, the core joint on the inner surface of the rising part of the mounting base along the side of the core, A method for manufacturing a ballast, comprising dropping a liquid adhesive of low viscosity (50 poise or less) and then fixing a core using a part of the mounting base.
JP59186350A 1984-09-07 1984-09-07 Manufacture of ballast Pending JPS61179515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59186350A JPS61179515A (en) 1984-09-07 1984-09-07 Manufacture of ballast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59186350A JPS61179515A (en) 1984-09-07 1984-09-07 Manufacture of ballast

Publications (1)

Publication Number Publication Date
JPS61179515A true JPS61179515A (en) 1986-08-12

Family

ID=16186816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59186350A Pending JPS61179515A (en) 1984-09-07 1984-09-07 Manufacture of ballast

Country Status (1)

Country Link
JP (1) JPS61179515A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01283805A (en) * 1988-05-10 1989-11-15 Murata Mfg Co Ltd Choke coil
JPH02263410A (en) * 1989-04-04 1990-10-26 Hitachi Lighting Ltd Manufacture of stabilizer
JPH04234792A (en) * 1991-01-07 1992-08-24 Yamaha Corp Electronic musical instrument

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882510A (en) * 1981-11-12 1983-05-18 Tokyo Electric Co Ltd Electromagnetic device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882510A (en) * 1981-11-12 1983-05-18 Tokyo Electric Co Ltd Electromagnetic device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01283805A (en) * 1988-05-10 1989-11-15 Murata Mfg Co Ltd Choke coil
JPH02263410A (en) * 1989-04-04 1990-10-26 Hitachi Lighting Ltd Manufacture of stabilizer
JPH04234792A (en) * 1991-01-07 1992-08-24 Yamaha Corp Electronic musical instrument

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