JPH0429539Y2

JPH0429539Y2 -

Info

Publication number: JPH0429539Y2
Application number: JP8733586U
Authority: JP
Priority date: 1986-06-09
Filing date: 1986-06-09
Publication date: 1992-07-17
Also published as: JPS62197825U

Description

【考案の詳細な説明】産業上の利用分野本考案は、各種電気機器に用いる薄型トランス
に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a thin transformer used in various electrical devices.

従来の技術従来、この種の薄型トランスは、第５図に示す
ような構成であつた。第５図において１はＥ形コ
ア、２はコイルボビン、３は巻線、４はギヤツプ
紙、５は端子埋設部、６は端子、７は義足、８は
引出し線巻付け部である。BACKGROUND ART Conventionally, this type of thin transformer has had a configuration as shown in FIG. In FIG. 5, 1 is an E-shaped core, 2 is a coil bobbin, 3 is a winding wire, 4 is a gap paper, 5 is a terminal embedding part, 6 is a terminal, 7 is a prosthetic leg, and 8 is a lead wire winding part.

考案が解決しようとする問題点このような従来の構成では、端子６を埋込むた
めに、端子埋設部５を、コア１の下側に設ける必
要があり、これに端子６を埋込んで引出し線を巻
付けると、引出し線巻付け部８が直接プリント基
板に当らないように、義足７を設ける必要があつ
た。このため、トランスの高さが高くなるという
問題があり、薄型機器に使用しにくいものであつ
た。Problems to be Solved by the Invention In such a conventional configuration, in order to embed the terminal 6, it is necessary to provide a terminal embedding part 5 below the core 1, and the terminal 6 can be embedded in this and pulled out. When winding the wire, it was necessary to provide the prosthetic leg 7 so that the lead-out wire winding part 8 would not come into direct contact with the printed circuit board. For this reason, there is a problem that the height of the transformer becomes high, making it difficult to use it in thin devices.

また従来の構成では、磁路中にギヤツプを設け
るために、Ｅ型コア１の先端突合せ部にギヤツプ
紙４を挿入しているが、挿入する際に落下した
り、ずれやすく、挿入作業が困難であるという問
題があつた。 In addition, in the conventional configuration, a gap paper 4 is inserted into the end abutting part of the E-shaped core 1 in order to provide a gap in the magnetic path, but it tends to fall or shift when inserted, making the insertion work difficult. There was a problem that.

本考案は、このような問題点を解決するもの
で、量産性のより薄型トランスを提供することを
目的としたものである。 The present invention solves these problems and aims to provide a thinner transformer that can be mass-produced.

問題点を解決するための手段この問題を解決するために本考案は、Ｏ形コア
とＩ形コアを組合せて用い、ボビンのつばの外周
部にコア保持部を備え、コア保持部に溝を設けて
Ｏ形コアを挿入し、さらにコア保持部に端子を埋
設した構成としたものである。Means for Solving the Problem In order to solve this problem, the present invention uses a combination of an O-shaped core and an I-shaped core, has a core holding part on the outer periphery of the collar of the bobbin, and has a groove in the core holding part. The O-shaped core is inserted into the core holding portion, and the terminal is embedded in the core holding portion.

作用この構成により、トランスを薄型とすることが
できるとともに組立性の優れたものとすることが
できる。Effect: With this configuration, the transformer can be made thin and has excellent assemblability.

実施例以下、本考案の実施例を図面を用いて説明す
る。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

第１図は、本考案の一実施例による薄型トラン
スの斜視図であり、第２図は第１図の実施例にお
ける、コア挿入方法を示す分解斜視図、第３図は
正面図、第４図は要部断面を示す側面図である。
第２図にもとづいて説明をすると、１２はコイル
ボビンのつばで、その外周部にコア保持部１６，
１６′が設けられ、コア保持部１６，１６′の上面
には溝１９，１９′を設け、さらに一方のコア保
持部１６には、巻胴部のコア挿入穴２２と連接す
る切欠き部２０を設けてある。巻胴部には巻線１
３を巻回する。切欠き部２０からはＩ形コア１５
を挿入し、コア保持部１６，１６′の溝１９，１
９′にはギヤツプ紙１４と共にＯ形コア１１を挿
入する。Ｏ形コア１１，Ｉ形コア１５の固定は、
例えば接着剤を用いて固定する。 1 is a perspective view of a thin transformer according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a core insertion method in the embodiment of FIG. 1, FIG. 3 is a front view, and FIG. The figure is a side view showing a cross section of a main part.
To explain based on FIG. 2, 12 is the collar of the coil bobbin, and the core holding part 16 is attached to the outer periphery of the collar.
16', grooves 19, 19' are provided on the upper surface of the core holding parts 16, 16', and one of the core holding parts 16 has a notch 20 connected to the core insertion hole 22 of the winding drum. is provided. Winding 1 on the winding trunk
Wind 3. From the notch 20, the I-shaped core 15
into the grooves 19, 1 of the core holding parts 16, 16'.
The O-shaped core 11 is inserted into the gap 9' together with the gap paper 14. Fixing of the O-type core 11 and I-type core 15 is as follows:
For example, it is fixed using adhesive.

第３図において１７は端子、１８は引出し線巻
付け部である。端子１７は、コア保持部１６の、
切欠き部２０をさけた個所に埋設されている。 In FIG. 3, 17 is a terminal, and 18 is a lead wire winding portion. The terminal 17 is connected to the core holding part 16.
It is buried in a location that avoids the notch 20.

第４図において１７′は端子で、これはコア保
持部１６′に埋設されている。２１は巻胴部であ
る。 In FIG. 4, 17' is a terminal, which is embedded in the core holding portion 16'. 21 is a winding trunk.

以上、コア保持部１６，１６′の溝１９，１
９′は２カ所設けたもので説明したが、片方のみ
に設けても良い。 As described above, the grooves 19, 1 of the core holding parts 16, 16'
Although 9' has been described as being provided at two locations, it may also be provided at only one location.

考案の効果以上のように、本考案によれば、端子を挿入し
ているコア保持部の位置が、つば外周の上側に位
置するため、従来例のような義足が不要であり、
その分薄型のトランスとすることができる。また
コア保持部の溝に、ギヤツプ紙とＯ形コアを挿入
するため、ギヤツプ紙が落下することがなく、ず
れにくいため、作業性に富むものであるなどの効
果をもち、実用的価値の大きなるものである。Effects of the invention As described above, according to the invention, the position of the core holding part into which the terminal is inserted is located above the outer circumference of the brim, so there is no need for a prosthesis like in the conventional example.
Accordingly, the transformer can be made thinner. In addition, since the gap paper and O-shaped core are inserted into the groove of the core holding part, the gap paper does not fall and is difficult to shift, making it highly workable and of great practical value. It is.

[Brief explanation of the drawing]

第１図は本考案の一実施例による薄型トランス
の斜視図であり、第２図は同実施例のコア組立て
を示す分解斜視図、第３図は同実施例の正面図、
第４図は同実施例の要部断面を示す側面図、第５
図は従来のトランスを示す側面図である。１１……Ｏ型コア、１２……つば、１３……巻
線、１４……ギヤツプ紙、１５……Ｉ型コア、１
６，１６′……コア保持部、１７，１７′……端
子、１９，１９′……溝、２０……切欠き部、２
１……巻胴部、２２……コア挿入穴。 FIG. 1 is a perspective view of a thin transformer according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing the core assembly of the embodiment, and FIG. 3 is a front view of the embodiment.
FIG. 4 is a side view showing a cross section of the main part of the same embodiment, and FIG.
The figure is a side view showing a conventional transformer. 11...O type core, 12...Brim, 13...Winding wire, 14...Gap paper, 15...I type core, 1
6, 16'... Core holding part, 17, 17'... Terminal, 19, 19'... Groove, 20... Notch, 2
1... Winding trunk section, 22... Core insertion hole.

Claims

[Scope of utility model registration request]

It has a winding trunk for winding and a collar, a core holding part is provided on the outer periphery of the collar, a groove is provided in the core holding part, and one side of the core holding part has a cut that connects with the core insertion hole of the winding trunk. It has a bobbin with a notch and a terminal buried in the core holding part, an O-shaped core is inserted into the groove of the core holding part, and an I-shaped core is inserted from the notch into the core insertion hole of the winding drum. Thin transformer.