JPH0223017B2 - - Google Patents
Info
- Publication number
- JPH0223017B2 JPH0223017B2 JP57182621A JP18262182A JPH0223017B2 JP H0223017 B2 JPH0223017 B2 JP H0223017B2 JP 57182621 A JP57182621 A JP 57182621A JP 18262182 A JP18262182 A JP 18262182A JP H0223017 B2 JPH0223017 B2 JP H0223017B2
- Authority
- JP
- Japan
- Prior art keywords
- rotary transformer
- core
- transformer core
- manufacturing
- separate
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000005498 polishing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- 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
- H01F41/02—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 for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Description
【発明の詳細な説明】
本発明はセパレート型ロータリートランスコア
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a separate rotary transformer core.
従来、セパレート型ロータリートランスコアを
製造する場合は、各チヤンネルごとに別々にリン
グコアを成形し、焼成して、これらをコア固定円
板に取り付けて得ていた。しかし、この方法によ
ると、各々の同軸度がとりにくく、また、各チヤ
ンネルを組み合わせた場合も同様に、同軸度がと
りにくいという欠点があつた。 Conventionally, when manufacturing a separate type rotary transformer core, a ring core was formed separately for each channel, fired, and then attached to a core fixing disk. However, this method has the disadvantage that it is difficult to obtain coaxiality for each channel, and it is also difficult to obtain coaxiality when the channels are combined.
本発明は、上記の欠点を改善するために、同軸
度のとりやすいセパレート型ロータリートランス
の製造方法を提供するものである。 In order to improve the above-mentioned drawbacks, the present invention provides a method for manufacturing a separate type rotary transformer that allows easy coaxiality.
以下、図面により詳細に説明する。第１図は本
発明に係る一実施例の成形体の断面図であり、第
２図は、本発明に係る一実施例の断面図である。
第１図の如く成形時において、一体的にチヤンネ
ル溝１１，１２及び分割溝１３を形成しておく。
この時、分割溝１３の深さは、所望するセパレー
ト型ロータリートランスコアの厚さより大きいこ
とは当然である。そして、該成形体を焼成した
後、両面を研磨し、分割溝を貫通させる事により
コアを各チヤンネルごとに分割する。該分割され
たコアを、第２図の如く、非磁性であるプラスチ
ツク製のコア固定円板２に固定する。この場合、
コア固定円板はドーナツツ形であり、中央の貫通
穴は内側コア１４の貫通穴と等しく、突起部２１
は内側コア１４の外径と外側コア１５の内径とが
それぞれ突起部の内径と外径とに係合するもので
ある。そして、接着剤によりコア固定円板にコア
を固定する。ここで接着剤に導電性の接着剤を使
用するとクロストーク特性の向上を計ることがで
きる。 A detailed explanation will be given below with reference to the drawings. FIG. 1 is a sectional view of a molded body according to an embodiment of the present invention, and FIG. 2 is a sectional view of an embodiment of the present invention.
As shown in FIG. 1, channel grooves 11, 12 and dividing grooves 13 are integrally formed during molding.
At this time, it is natural that the depth of the dividing groove 13 is greater than the desired thickness of the separate rotary transformer core. After firing the molded body, both surfaces are polished and the core is divided into channels by passing dividing grooves therethrough. The divided cores are fixed to a core fixing disk 2 made of non-magnetic plastic, as shown in FIG. in this case,
The core fixing disk is donut-shaped, the central through hole is equal to the through hole of the inner core 14, and the protrusion 21
The outer diameter of the inner core 14 and the inner diameter of the outer core 15 engage with the inner diameter and outer diameter of the protrusion, respectively. Then, the core is fixed to the core fixing disk with adhesive. Here, if a conductive adhesive is used as the adhesive, the crosstalk characteristics can be improved.
また、この実施例は２チヤンネル用ロータリー
トランスについての実施例ではあるが、２チヤン
ネル用に限ることなく、２チヤンネル用以外の４
チヤンネル、５チヤンネル用のロータリートラン
スコアについても容易に利用できるものである。 In addition, although this embodiment is an example of a rotary transformer for 2 channels, it is not limited to 2 channels, and may be used for 4 channels other than 2 channels.
Channel and 5-channel rotary transformer cores are also easily available.
この方法により得られたセパレート型ロータリ
ートランスコアは成形時より、加工時一時的に分
割されるものの一体物として工程を通る為、同軸
度が非常にとりやすい。この同軸度はロータリー
トランスコアにとつて非常に大切な特性であり、
この方法により改善されることの貢献度は極めて
大である。 The separate rotary transformer core obtained by this method is temporarily divided during processing, but goes through the process as a single piece, so it is very easy to maintain coaxiality. This coaxiality is a very important characteristic for rotary transformer cores.
The contribution of this method to improvements is extremely large.
また、インダクタンス値はノンセパレート型に
比べやや低下するものの、シヨートリング装着コ
アよりは高く、クロストーク特性に関しても、導
電性接着剤を使用することにより、改善できる。 Furthermore, although the inductance value is slightly lower than that of the non-separate type, it is higher than that of the shot ring attached core, and the crosstalk characteristics can also be improved by using a conductive adhesive.
以上詳記した如く、本発明によるセパレート型
ロータリートランスコアは、インダクタンスの低
下をおさえ、クロストークを改善するものであ
り、しかも最大の効果を表わすものは、同軸度が
非常に良いということである。従つて、ロータリ
ートランスコアの製造にあたり、非常に有益なも
のである。 As detailed above, the separate rotary transformer core according to the present invention suppresses the drop in inductance and improves crosstalk, and the greatest effect is that it has very good coaxiality. . Therefore, it is very useful in manufacturing rotary transformer cores.
第１図は、本発明に係る一実施例の成形体の断
面図であり、第２図は、本発明に係る一実施例の
断面図である。
１……コア成形体、１１，１２……チヤンネル
用溝、１３……分割溝、１４，１５……セパレー
ト型ロータリートランスコア、２……コア固定円
板。
FIG. 1 is a sectional view of a molded article according to an embodiment of the present invention, and FIG. 2 is a sectional view of an embodiment of the present invention. 1... Core molded body, 11, 12... Channel groove, 13... Division groove, 14, 15... Separate rotary transformer core, 2... Core fixing disk.
Claims (1)
する際において、成形時一体的にチヤンネル溝と
同一面に分割溝を形成し、焼成後、両面研磨によ
り分割した後、プラスチツク等の非磁性体の突起
を有するドーナツツ形コア固定円板に、前記分割
されたセパレート型ロータリートランスコアを前
記の突起を狭持する様に、接着剤等で固定させる
ことにより所望のセパレート型ロータリートラン
スコアを得ることを特徴とするセパレート型ロー
タリートランスコアの製造方法。 ２ 接着剤が導電性であることを特徴とする特許
請求の範囲第１項記載のセパレート型ロータリー
トランスコアの製造方法。[Claims] 1. When manufacturing a separate type rotary transformer core, dividing grooves are integrally formed on the same surface as the channel grooves during molding, and after firing and dividing by double-sided polishing, non-magnetic material such as plastic is formed. A desired separate rotary transformer core is obtained by fixing the divided separate rotary transformer core to a donut-shaped core fixing disk having body protrusions with an adhesive or the like so as to sandwich the protrusions. A method for manufacturing a separate rotary transformer core, characterized by: 2. The method for manufacturing a separate rotary transformer core according to claim 1, wherein the adhesive is conductive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182621A JPS5972122A (en) | 1982-10-18 | 1982-10-18 | Manufacture of separate type rotary transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182621A JPS5972122A (en) | 1982-10-18 | 1982-10-18 | Manufacture of separate type rotary transformer core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5972122A JPS5972122A (en) | 1984-04-24 |
| JPH0223017B2 true JPH0223017B2 (en) | 1990-05-22 |
Family
ID=16121485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57182621A Granted JPS5972122A (en) | 1982-10-18 | 1982-10-18 | Manufacture of separate type rotary transformer core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5972122A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61140116A (en) * | 1984-12-13 | 1986-06-27 | Nippon Ferrite Ltd | Separate-type rotary transformer |
| JPS61104519U (en) * | 1984-12-13 | 1986-07-03 | ||
| JPS61272908A (en) * | 1985-05-28 | 1986-12-03 | Nippon Ferrite Ltd | Manufacture of core for rotary transformer |
-
1982
- 1982-10-18 JP JP57182621A patent/JPS5972122A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5972122A (en) | 1984-04-24 |
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