JPS6167210A - Power supply unit - Google Patents

Abstract

PURPOSE:To achieve a power supply unit which has less component parts, excellent assembling property and lower cost by providing, in a power supply unit for supplying power to an electronic apparatus, a circular recess in the collar of a coil bobbin, a groove continual with the recess and reaching the end surface, and a columnar projection in the recess provided with a U-shaped cut, and inserting a OMEGA-shaped spring terminal under pressure between the recess and the projections. CONSTITUTION:A coil 18 is wound around a coil bobbin 13 made of an insulator such as synthetic resin, and the lead 19 of the coil 18 is wound around the top projection 14a of a OMEGA-shaped spring terminal 14 and is soldered. A core 20 is inserted into the coil bobbin 13 to form a transformer 21. A parts unit 22 constituting a rectifier circuit such as diode and capacitor is fixed to the transformer, and the spring terminal 14 is inserted into a plug blade 24 inserted into a case 23 under pressure, performing electrical connection. The plug blade 24 is provided with a recess 25 so that a projection 14b in the inside of the open end of the spring terminal 14 is fitted in the recess 25, providing stronger fitting. Further, the top 26 of the plug blade 24 is fitted in a cut 15a of a columnar projection 15 of the coil bobbin 13, so that external stresses are not applied to the spring terminal 14, providing a structure which is hard to cause disconnection.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は音響機器などの電子機器の電源供給用最近、音
響機器などにおいては、２電源方式、すなわち、乾電池
と、ＡＣアダプタによる直流供給装置と併用できるもの
が多くなってきている。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used to supply power to electronic equipment such as audio equipment.Recently, in audio equipment, etc., two power supply systems are used, that is, dry batteries and a DC supply device using an AC adapter are used in combination. There are more and more things that can be done.

このようなムＣアダプタと呼ばれる電源装置としては、
従来第１図、第２図に示すように構成されてい念。As such a power supply device called a MuC adapter,
Please note that the conventional configuration was as shown in Figures 1 and 2.

すなわち第１図のように、ケース１内にトランス２、ダ
イオードやコンデンサなどの整流回路を構成する部品ユ
ニット３を収納し、このケース１に栓刃４を圧入し、ト
ランス２よりリード線６を引出し、栓刃４に半田付をお
こない、電気的に接続していた。That is, as shown in FIG. 1, a transformer 2, a component unit 3 such as a diode and a capacitor that constitute a rectifier circuit are housed in a case 1, a plug blade 4 is press-fitted into the case 1, and a lead wire 6 is connected from the transformer 2. The drawer and plug blade 4 were soldered and electrically connected.

この構成では巻装したコイルの銅線全リード線６に半田
付をおこない、さらにリード線６と栓刃４を半田付をお
こなわなければならず手間を要し構成部品も多くコスト
的に不利になるとともに、リード線５を栓刃４に半田付
することによって、半田付時の熱で栓刃４の固定が緩む
という多くの問題を有するものであった。In this configuration, all the copper wire leads 6 of the wound coil must be soldered, and the lead wires 6 and the plug blade 4 must also be soldered, which is time-consuming and requires many components, which is disadvantageous in terms of cost. Moreover, by soldering the lead wire 5 to the plug blade 4, there are many problems in that the fixation of the plug blade 4 becomes loose due to the heat generated during soldering.

又第２図のようにケースθ内に栓刃７をコイルボビン８
に圧入したトランス９、ダイオードやコンデンサなどの
整流回路を構成する部品ユニット１０を収納し、このケ
ース６の栓刃孔１１にトランス９の栓刃７を挿入し組立
ていた。Also, as shown in Fig. 2, the plug blade 7 is inserted into the coil bobbin 8 in the case θ.
A transformer 9 press-fitted into the case 6, a component unit 10 constituting a rectifier circuit such as a diode and a capacitor were housed, and the plug blade 7 of the transformer 9 was inserted into the plug blade hole 11 of the case 6 and assembled.

この構成では巻装した銅線を直接栓刃７に半田付をおこ
なうと栓刃７のガタつきで銅線が断線する恐れがあるた
め、銅線を補助線１２に電気的に接続をおこない、補助
線１２を栓刃７に半田付全おこなっている。又、補助線
１２の絶縁も考慮する必要があり構成部品も多くコスト
的に不利になるという問題を有するものであった。In this configuration, if the wrapped copper wire is soldered directly to the plug blade 7, there is a risk that the copper wire will break due to rattling of the plug blade 7, so the copper wire is electrically connected to the auxiliary wire 12, The auxiliary wire 12 is completely soldered to the plug blade 7. Furthermore, it is necessary to take into account the insulation of the auxiliary wire 12, and there are many components, which is disadvantageous in terms of cost.

発明の目的 本発明は以上のような従来の欠点を除去するものであり
、構成部品が少なく組立性に優れ、安価な電源装置を提
供することを目的とするものである。OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned conventional drawbacks, and aims to provide an inexpensive power supply device that has a small number of components, is easy to assemble, and is easy to assemble.

発明の構成 上記目的を達成するために本発明の電源装置は、コイル
を巻装するコイルボビンの鍔に円形の凹部と、この凹部
と連続し端面に達する溝と、上記凹部内にコ岬状の切込
みを設は九円柱状の突起物音を設け、この凹部と突起物
間にΩ状のバネ端子を圧入し、上記コイルの引出し線を
バネ端子に接続し、このコイルボビンに鉄心を組込んだ
トランスに整流回路を構成する部品ユニノトヲ取付け、
底部に上記溝および突起物の切込みにはまりこみ、かつ
バネ端子に圧接する栓刃を備えたケースにトランス？収
納して構成されている。この構成とすることにより、栓
刃にバネ端子を挿入した時、栓刃の頭部がコイルボビン
のバネ端子圧入部のコの字状突起物に当９栓刃に加わる
力がバネ端子に波及しないようになる。Structure of the Invention In order to achieve the above object, the power supply device of the present invention has a circular recess in the collar of a coil bobbin around which a coil is wound, a groove that is continuous with the recess and reaches an end surface, and a cape-shaped groove in the recess. A notch is made to form a nine-cylindrical protrusion, an Ω-shaped spring terminal is press-fitted between the recess and the protrusion, the lead wire of the coil is connected to the spring terminal, and a transformer with an iron core assembled in this coil bobbin is constructed. Attach the components that make up the rectifier circuit to
A transformer in a case with a plug blade on the bottom that fits into the groove and notch of the protrusion and presses against the spring terminal? It is composed of storage. With this configuration, when the spring terminal is inserted into the plug blade, the force applied to the plug blade does not spread to the spring terminal when the head of the plug blade hits the U-shaped protrusion of the spring terminal press-fit portion of the coil bobbin. It becomes like this.

実施例の説明 以下、本発明の一実施例を図面第３図〜第７図により説
明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 to 7 of the drawings.

まず、第３図〜第６図において１３は合成樹脂などの絶
縁物よりなり複数個の鍔１３＆、１３ｂ。First, in FIGS. 3 to 6, reference numeral 13 denotes a plurality of flanges 13&, 13b made of an insulating material such as synthetic resin.

１３Ｑｉ有するコイルボビンであり、このコイルボビン
１３の鍔１３ａにはバネ端子１４が圧入されるコの字状
の切込み１５２Ｌを入れた円柱状の突起物１６とこの突
起物１６を中央に有する円形の凹部１６と、この四部１
６と連続し端面に達する溝１７とが形成されている。円
柱の突起物１５と凹部１６との間にΩ状のバネ端子１４
が圧入されコイルボビン１３に固定されている。The collar 13a of the coil bobbin 13 has a cylindrical protrusion 16 with a U-shaped notch 152L into which the spring terminal 14 is press-fitted, and a circular recess 16 with the protrusion 16 in the center. And this part 1
A groove 17 that is continuous with 6 and reaches the end face is formed. An Ω-shaped spring terminal 14 is placed between the cylindrical protrusion 15 and the recess 16.
is press-fitted and fixed to the coil bobbin 13.

第３図のコイルボビン１３にコイル１８を巻装し、バネ
端子１４の頭部凸部１４８Ｌにコイル１Ｂの引出し線１
９を巻付け、半田付をおこなう。上記コイル１８を巻装
したコイルボビン１３に鉄心２０を挿入し、トランス２
１が完成される。上記トランス２１に、第７図に示すよ
うにダイオードやコンデンサなどの整流回路を構成する
部品ユニソ「を固定し、ケース２３に圧入された栓刃２
４に、バネ端子１４を挿入し電気的接続をおこなう。The coil 18 is wound around the coil bobbin 13 shown in FIG.
Wrap 9 and solder. The iron core 20 is inserted into the coil bobbin 13 on which the coil 18 is wound, and the transformer 2
1 is completed. As shown in FIG. 7, parts such as diodes and capacitors constituting the rectifier circuit are fixed to the transformer 21, and the plug blade 2 is press-fitted into the case 23.
4, the spring terminal 14 is inserted to establish an electrical connection.

栓刃２４には、バネ端子１４開放端の内側に凸部１４ｂ
が嵌合するように凹部２５を設けてより強く嵌合するよ
うになっている。The plug blade 24 has a convex portion 14b inside the open end of the spring terminal 14.
A recess 25 is provided so that the two can fit together, thereby making the fit stronger.

又栓刃２４の頭部２６がコイルボビン１３の円柱の突起
物１６の切込み１５＆に嵌合し外的応力がバネ端子１４
に掛らないようになっているため断線に強い構造である
。また、図中２７はコイルボビン１３の鍔１３Ｃに植設
した端子ピンである。In addition, the head 26 of the plug blade 24 fits into the notch 15& of the cylindrical projection 16 of the coil bobbin 13, and external stress is applied to the spring terminal 14.
It has a structure that is resistant to disconnection because it does not hang on the wire. Further, 27 in the figure is a terminal pin implanted in the collar 13C of the coil bobbin 13.

発明の効果 以上のように本発明の電源装置は、バネ端子を用い、栓
刃に半田付をおこなわないため、熱的ストレスをケース
にも加えず、又コイルボビンの鍔の凹部と円柱状の突起
物間にバネ端子を具備することにより、補助線を使用せ
ずに栓刃とコイルと接続でき、この栓刃に加わる外的応
力も問題にならないなど、組立作業性にも優れ、コスト
面でも有利になり、実用的価値の犬なるものであるっEffects of the Invention As described above, the power supply device of the present invention uses a spring terminal and does not solder the plug blade, so thermal stress is not applied to the case, and the recess and cylindrical protrusion in the collar of the coil bobbin are By providing a spring terminal between the objects, the plug blade and coil can be connected without using auxiliary wires, and external stress applied to the plug blade does not become a problem, making it easy to assemble and cost-effective. It is a dog of advantage and practical value.

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

第１図、第２図はそれぞれ従来の電源装置を示す一部切
欠分解斜視図、第３図は本発明の電源装置の一実施例１
に示すコイルボビンの分解斜視図、第４図は同要部の上
面図、第５図は同正面図、第６図はバネ端子の正面図、
第７図は本発明の電源装置の一実施例を示す分解斜視図
である。 １３−・−−：ｒイルボビン、１３ａ　、　１３ｂ　、
１３ｃ・・・・鍔、１４・・・・・・バネ端子、１４ト
・・・・・頭部凸部、１６・・・・・円柱状の突起物、
１６・・・・・・凹部、１７・・・溝、１８・・・・・
コイル、１９・・・・・・引出し線、２０・・・・・鉄
心、２１・・・・・トランス、２２・・・・・・整流回
路部品ユニット、２３・・・・・・ケース、２４・・・
・・・栓刃、２６・・・・・・栓刃の凹部、２６・・・
・・・栓刃の頭部。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第７
図1 and 2 are partially cutaway exploded perspective views showing conventional power supply devices, respectively, and FIG. 3 is an embodiment 1 of the power supply device of the present invention.
4 is a top view of the main parts, FIG. 5 is a front view of the coil bobbin, and FIG. 6 is a front view of the spring terminal.
FIG. 7 is an exploded perspective view showing an embodiment of the power supply device of the present invention. 13---: r irbobin, 13a, 13b,
13c...Brim, 14...Spring terminal, 14T...Head convex portion, 16...Cylindrical protrusion,
16... recess, 17... groove, 18...
Coil, 19... Lead wire, 20... Iron core, 21... Transformer, 22... Rectifier circuit component unit, 23... Case, 24 ...
...Bung blade, 26...Concavity of plug blade, 26...
...The head of the plug blade. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 7
figure

Claims (1)

【特許請求の範囲】[Claims] コイルを巻装するコイルボビンの鍔に円形の凹部と、こ
の凹部と連続し端面に達する溝と、上記凹部内にコの字
状の切込みを設けた円柱状の突起物を設け、この凹部と
突起物間にΩ状のバネ端子を圧入し、上記コイルの引出
し線をバネ端子に接続し、このコイルボビンに鉄心を組
込んだトランスに整流回路を構成する部品ユニットを取
付け、底部に上記溝および突起物の切込みにはまり込み
、かつバネ端子に圧接する栓刃を備えたケースにトラン
スを収納してなる電源装置。The collar of the coil bobbin for winding the coil is provided with a circular recess, a groove that is continuous with the recess and reaches the end surface, and a cylindrical projection with a U-shaped cut inside the recess, and the recess and the projection are provided. A Ω-shaped spring terminal is press-fitted between the objects, the lead wire of the above coil is connected to the spring terminal, and a component unit constituting a rectifier circuit is attached to a transformer with an iron core built into this coil bobbin. A power supply device in which a transformer is housed in a case equipped with a plug blade that fits into a notch in an object and presses against a spring terminal.