JPH02888Y2 - - Google Patents
Info
- Publication number
- JPH02888Y2 JPH02888Y2 JP19738184U JP19738184U JPH02888Y2 JP H02888 Y2 JPH02888 Y2 JP H02888Y2 JP 19738184 U JP19738184 U JP 19738184U JP 19738184 U JP19738184 U JP 19738184U JP H02888 Y2 JPH02888 Y2 JP H02888Y2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- substrate
- ferrite core
- rotary transformer
- core
- 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.)
- Expired
Links
- 239000000853 adhesive Substances 0.000 claims description 30
- 230000001070 adhesive effect Effects 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 20
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、各種制御装置や検出装置等における
回転センサとかビデオテープレコーダーの回転ヘ
ツドなどが感知した信号を静止した回路部分へ伝
達し、或いは逆に制御又は記録信号を回転部へ伝
送する手段として広く利用されているロータリー
トランスに関するものである。[Detailed description of the invention] [Industrial application field] The present invention transmits signals sensed by rotation sensors in various control devices and detection devices, rotation heads of video tape recorders, etc. to stationary circuit parts, or Conversely, the present invention relates to a rotary transformer that is widely used as a means for transmitting control or recording signals to rotating parts.
従来のロータリートランスの一例の裏面図を第
４図に、また第４図におけるＢ−Ｂ断面図を第５
図に示す。この従来例のロータリートランスコア
２は、巻線７が付設され、環状溝面に設けられた
スリツト８及びコア外周部の凹部を通じ裏面へ引
き出され、裏面外周部にコア２と接着されている
基板３の銅箔部に半田６にて半田付けされてい
た。
Figure 4 shows a back view of an example of a conventional rotary transformer, and Figure 5 shows a sectional view taken along line B-B in Figure 4.
As shown in the figure. This conventional rotary transformer core 2 has a substrate to which a winding 7 is attached, which is drawn out to the back side through a slit 8 provided in the annular groove surface and a recess on the outer periphery of the core, and is bonded to the core 2 on the outer periphery of the back surface. It was soldered to the copper foil part of No. 3 with solder No. 6.
従来は、平坦なコア又は基板接着面に接着剤を
塗布しコアと基板を接着していたため、特に粘度
の低い接着剤を用いた場合、接着剤塗布と同時に
接着剤が広がつてしまい、基板外周部へ流出硬化
し、ロータリートランスをシリンダーへ組込む際
に、流出した接着剤が組込みの妨害となつてい
た。このため、接着剤は低粘度の選択が困難であ
つた。さらに、接着剤塗布場所を規定しなけれ
ば、前述のごとく基板外周部に接着剤が流出して
しまい、これを防止するためには、高価な塗出機
が必要であり、設備費用がかかつていた。
Conventionally, adhesive was applied to the flat core or substrate adhesive surface to bond the core and the substrate. However, especially when using a low viscosity adhesive, the adhesive spreads at the same time as the adhesive is applied, causing the substrate to become damaged. The adhesive leaked out to the outer periphery and hardened, and when the rotary transformer was being assembled into the cylinder, the adhesive that flowed out interfered with the assembly. For this reason, it has been difficult to select an adhesive with a low viscosity. Furthermore, if the adhesive application location is not specified, the adhesive will leak out to the outer periphery of the board as described above, and to prevent this, an expensive coating machine is required, which increases equipment costs. there was.
本考案は、上記の問題点を解決するために、フ
エライトコアにおける基板接着部の略中心部分に
接着剤を流し込む凹部を設けるものである。
In order to solve the above-mentioned problems, the present invention provides a concave portion for pouring an adhesive into a substantially central portion of the substrate bonding portion of the ferrite core.
フエライトコアにおける基板接着部の略中心部
分に接着剤を流し込む凹部を設けることにより、
下記作用を生じる。
By providing a recess into which the adhesive is poured approximately at the center of the substrate bonding part in the ferrite core,
The following effects occur.
低粘度の接着剤を基板接着用に用いても、接
着剤が接着前に指定範囲外に広がることはな
い。 Even when low viscosity adhesives are used for bonding substrates, the adhesive does not spread beyond the specified area before bonding.
接着剤塗布位置をフエライトコア凹部にすれ
ば良く、容易に一定場所に塗出可能となる。 The adhesive can be applied to the concave portion of the ferrite core, making it easy to apply the adhesive to a fixed location.
接着剤の量は凹部の深さを変えることにより
ほぼ一定量の塗出が可能となるため、簡易な塗
出機で接着剤の塗出が可能となり、設備費が低
減する。 Since the amount of adhesive can be applied in a substantially constant amount by changing the depth of the recess, it is possible to apply the adhesive with a simple applicator, reducing equipment costs.
第１図は、本考案に係る一実施例の裏面図であ
り、第２図は、第１図のＡ−Ａ断面図である。こ
の実施例は、フエライトコア２の環状溝に付設さ
れた巻線７のリード線４は、環状溝面に設けられ
たスリツト８及び外周部の凹部を通じ、裏面へ導
かれている。また、基板３は、フエライトコア２
の裏面に設けられた接着剤塗出用溝１に接着剤５
を流し、基板３を接着している。前述したリード
線４は、基板４の銅箔部に半田６にて半田付けさ
れている。
FIG. 1 is a back view of one embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1. In this embodiment, the lead wire 4 of the winding 7 attached to the annular groove of the ferrite core 2 is guided to the back surface through a slit 8 provided in the annular groove surface and a recessed portion on the outer periphery. Further, the substrate 3 has a ferrite core 2
Adhesive 5 is applied to the adhesive dispensing groove 1 provided on the back side of the
The substrate 3 is bonded. The aforementioned lead wire 4 is soldered to the copper foil portion of the board 4 with solder 6.
第３図ａ〜ｄは基板接着の工程における断面図
である。第３図を用いて基板の接着工程を説明す
る。 FIGS. 3a to 3d are cross-sectional views in the step of bonding the substrates. The process of bonding the substrates will be explained using FIG.
第３図ａは接着剤を塗布する前のコア断面図で
ある。第３図ｂは、接着剤を塗布した状態におけ
る断面図である。第３図ｂにおいて、フエライト
コア２の裏面に設けられている接着剤塗布位置決
め用溝１に、塗出機９を用いて接着剤５を流し込
んである。第３図ｃにおいて基板３を上面よりお
さえ込んである。この時、接着剤５は、基板３表
面にそつて広がる。第３図ｄは完成図である。第
３図ｄにおいて、接着剤５は、基板３とフエライ
トコア２の微小な隙間をもつて毛細管現象にて、
基板一様に広がり接着するものである。 FIG. 3a is a sectional view of the core before adhesive is applied. FIG. 3b is a cross-sectional view with adhesive applied. In FIG. 3b, the adhesive 5 is poured into the adhesive application positioning groove 1 provided on the back surface of the ferrite core 2 using a coating machine 9. In FIG. 3c, the substrate 3 is held down from above. At this time, the adhesive 5 spreads along the surface of the substrate 3. Figure 3d is a completed drawing. In FIG. 3d, the adhesive 5 is applied through a small gap between the substrate 3 and the ferrite core 2 by capillary action.
It spreads uniformly on the substrate and adheres to it.
本考案により、基板接着に使用する接着剤は、
低粘度でも充分使用可能となり、塗出機等の設備
も安価なもので済み、さらに、シリンダーへ組込
む際の不良を低減するなど産業上極めて有益なも
のである。
With this invention, the adhesive used for bonding substrates is
It can be used satisfactorily even with low viscosity, requires inexpensive equipment such as a coating machine, and is extremely useful industrially, as it reduces defects when assembling into cylinders.
尚、本考案例では、扇状凹溝をもつて説明を行
つたが、凹溝の形状は、逆三角形形状等でも良
く、また、凹溝は、基板接着範囲内に点在させて
も同様の効果を得ることはいうまでもない。 In addition, in this example of the present invention, explanation was given using fan-shaped grooves, but the shape of the grooves may also be an inverted triangular shape, or the grooves may be scattered within the area where the substrate is bonded. Needless to say, it is effective.
第１図は本考案に係る一実施例の裏面図であ
り、第２図は第１図Ａ−Ａ断面図であり、第３図
ａ〜ｄは、基板接着工程における断面図であり、
第４図は、従来の一実施例の裏面図であり、第５
図は第４図Ｂ−Ｂ断面図である。
１……接着剤塗布位置決め用凹溝、２……フエ
ライトコア、３……基板、４……リード線、５…
…接着剤、６……半田、７……巻線、８……スリ
ツト、９……塗出機。
FIG. 1 is a back view of one embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIGS.
FIG. 4 is a back view of a conventional embodiment, and FIG.
The figure is a sectional view taken along the line BB in FIG. 1... Concave groove for adhesive application positioning, 2... Ferrite core, 3... Board, 4... Lead wire, 5...
... adhesive, 6 ... solder, 7 ... winding wire, 8 ... slit, 9 ... coating machine.
Claims (1)
し、もう一方を回転自在とし、前記フエライトコ
アの少なくとも一方の相対向面には、同心円状の
環状溝が複数設けられ、該環状溝に巻線を付設し
前記フエライトコア裏面に基板を接着し、該基板
に前記巻線の端末を接続してなるロータリートラ
ンスにおいて、前記フエライトコアの前記基板接
着範囲内に接着剤塗布位置決め用凹部を設けたこ
とを特徴とするロータリートランス。 One of the opposing disc-shaped ferrite cores is fixed and the other is rotatable, and at least one of the opposing surfaces of the ferrite core is provided with a plurality of concentric annular grooves, and a wire is wound in the annular groove. In the rotary transformer, a substrate is attached to the back surface of the ferrite core, and an end of the winding is connected to the substrate, and a recess for positioning adhesive application is provided within the bonding range of the substrate of the ferrite core. A rotary transformer featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19738184U JPH02888Y2 (en) | 1984-12-25 | 1984-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19738184U JPH02888Y2 (en) | 1984-12-25 | 1984-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61111118U JPS61111118U (en) | 1986-07-14 |
| JPH02888Y2 true JPH02888Y2 (en) | 1990-01-10 |
Family
ID=30755640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19738184U Expired JPH02888Y2 (en) | 1984-12-25 | 1984-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02888Y2 (en) |
-
1984
- 1984-12-25 JP JP19738184U patent/JPH02888Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61111118U (en) | 1986-07-14 |
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