JPS62184604A - Rotary transformer device - Google Patents

Rotary transformer device

Info

Publication number
JPS62184604A
JPS62184604A JP2580986A JP2580986A JPS62184604A JP S62184604 A JPS62184604 A JP S62184604A JP 2580986 A JP2580986 A JP 2580986A JP 2580986 A JP2580986 A JP 2580986A JP S62184604 A JPS62184604 A JP S62184604A
Authority
JP
Japan
Prior art keywords
rotary transformer
core
fixed side
adhesive
housing
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.)
Granted
Application number
JP2580986A
Other languages
Japanese (ja)
Other versions
JPH0766485B2 (en
Inventor
Minoru Koda
香田 稔
Kazuyoshi Kurose
黒瀬 和義
Hiroshi Inoue
洋 井上
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP61025809A priority Critical patent/JPH0766485B2/en
Publication of JPS62184604A publication Critical patent/JPS62184604A/en
Publication of JPH0766485B2 publication Critical patent/JPH0766485B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To smoothen assembling work eliminating protrusion of unnecessary adhesive from the lower end face by providing a tapered run-off on the lower end face of inner periphery of fixed side core. CONSTITUTION:A large tapered run-off 12 about 1/2 of inner thickness of a fixed side rotary transformer is provided in the inner periphery of the lower end face of a fixed side rotary transformer 10. On the other hand, outer diameter of a housing 9 is set to a value slightly smaller than inner diameter of the fixed side rotary transformer 10 by 0.01-0.03mm. Adhesive is applied in beltlike form on the outer periphery of the housing 9 at a place about 1/2 in the direction of height, and then, the fixed side rotary transformer 10 is inserted into the housing 9 from upper part. At this time, by pressing down the beltlike adhesive in the tapered run-off 12, the adhesive is filled in a gap between the housing 9 and the rotary transformer 10.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、VTR用の111転トランス装置に関するも
ので、特に円筒形の回転1−ランスの新規な取り付は構
成を提供するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a 111 transformer device for a VTR, and in particular provides a novel mounting configuration for a cylindrical rotary lance. .

(従来の技術) 最近、V T R用の回転トランスが種々提案されてい
る。中でも、円板状のフェライトコアーに複数本の巻線
溝を有する平面対向形の回転トランスが多く用いられて
いる。しかしVTRの多機能化により、多くのビデオヘ
ッドを必要とし、回転トランスの巻線溝も多くなり、各
巻線溝毎の特性差、各巻線溝間のクロストークなどがク
ローズアップされてきた。これらの問題を解決する一手
段として円筒形のフェライトコアーの外周・円周面に円
周状の巻線)14を設けた回転トランス装置が見直され
てきている。
(Prior Art) Recently, various rotary transformers for VTRs have been proposed. Among these, a planarly opposed rotary transformer having a disc-shaped ferrite core and a plurality of winding grooves is often used. However, as VTRs become more multi-functional, they require more video heads and the number of winding grooves in the rotary transformer increases, drawing attention to differences in characteristics between the winding grooves and crosstalk between the winding grooves. As a means of solving these problems, a rotary transformer device in which a circumferential winding (14) is provided on the outer periphery/circumferential surface of a cylindrical ferrite core has been reviewed.

以下図面を参照し従来例について説明する。A conventional example will be described below with reference to the drawings.

第3図において、モータ15の駆動力は軸16を介して
回転シリンダ17に伝えられる。そして、軸16にはそ
の小径部に円筒状のコアーで形成された回転側の回転ト
ランス18が取り付けられたディスク19が設けられて
いる。一方、モータ15は固定シリンダ20に取り付け
られ、該固定シリンダ20の上面には鍔が突いた円筒状
部材21がビス22を介して取り付けられ、該円筒状部
材21の内面には円筒状のコアーで形成された固定側の
回転トランス23が取り付けられている。
In FIG. 3, the driving force of motor 15 is transmitted to rotating cylinder 17 via shaft 16. In FIG. The shaft 16 is provided with a disk 19 having a rotating transformer 18 formed of a cylindrical core attached to its small diameter portion. On the other hand, the motor 15 is attached to a fixed cylinder 20, a cylindrical member 21 with a flange is attached to the upper surface of the fixed cylinder 20 via screws 22, and a cylindrical core is attached to the inner surface of the cylindrical member 21. A fixed-side rotary transformer 23 formed of is attached.

(発明が解決しようとする問題点) しかしながら上記の構成では回転1−ランス18゜23
の巻線溝を多く設定した場合、回転1−ランス18゜2
3自体の長さが大きくなり固定シリンダ20も長くなる
。そのため、固定シリンダ20内にモータ12を配置し
ようとすると鍔付きの円筒状部材21がそれを阻害する
。また該円筒状部材21に固定側回転トランス23を取
り付け、さらにそれを固定シリンダ20に取り付ける複
雑さを有している。   ゛さらに、該円筒状部材21
に回転トランス23を接着剤で組立てる場合、固定側回
転1−ランス23の端部に接着剤がはみ出したりし、組
立がしづらい問題を有していた。
(Problem to be solved by the invention) However, in the above configuration, rotation 1 - lance 18°23
If many winding grooves are set, rotation 1 - lance 18゜2
3 itself becomes longer, and the fixed cylinder 20 also becomes longer. Therefore, if an attempt is made to arrange the motor 12 within the fixed cylinder 20, the flanged cylindrical member 21 will obstruct the arrangement. Further, it is complicated to attach the stationary rotary transformer 23 to the cylindrical member 21 and to attach it to the stationary cylinder 20.゛Furthermore, the cylindrical member 21
When assembling the rotating transformer 23 with adhesive, the adhesive sometimes protrudes from the end of the fixed rotating lance 23, making assembly difficult.

(問題点を解決するための手段) 本発明は上記の問題を解決するため、円筒形のフェライ
トコアーの外周面に複数個の円周溝を有し、該円周溝に
巻線を施した固定側コアーと、該コアーと対向しその内
周面に複数個の円周溝を有し、該円周溝に巻線が施され
た回転側コアーとを備えた回転トランス装置において、
上記固定側コアー内周部の下端面にテーパー状の逃げ部
を設ける。そして、そのテーパー状の逃げ部に接着剤を
塗布し、上記固定側コアーの内径よりわずかに小さな外
径を有するハウジング部に上記固定側コアーを取り付け
る構成を備えたものである。
(Means for Solving the Problems) In order to solve the above problems, the present invention has a plurality of circumferential grooves on the outer peripheral surface of a cylindrical ferrite core, and a wire is wound in the circumferential grooves. A rotating transformer device comprising a stationary core and a rotating core that faces the core and has a plurality of circumferential grooves on its inner circumferential surface, and has wires wound around the circumferential grooves,
A tapered relief portion is provided on the lower end surface of the inner peripheral portion of the fixed side core. Then, adhesive is applied to the tapered relief portion, and the stationary core is attached to a housing portion having an outer diameter slightly smaller than the inner diameter of the stationary core.

(作 用) 本発明は上記の構成により、固定側コアーをハウジング
部に取り付けるとき、ハウジングの外周部に接着剤を塗
布し、挿入する。これにより、ハウジングの」一端面に
接着剤が付着したり、固定側コアーの下端面から不要な
接着剤がはみ出したりすることがなく、その組立て作業
がスムースになる。また、固定側コアーの取り付は部材
も不要となる。また、固定側コアーの下端部のみにテー
パー状の逃げ部を設けることにより該固定側コアーの研
摩1円周溝の加工9円周溝への巻線時などに固定側コア
ーの上下の判別も可能となる。
(Function) According to the present invention, when the stationary side core is attached to the housing part, an adhesive is applied to the outer peripheral part of the housing and the fixed core is inserted. This prevents adhesive from adhering to one end surface of the housing and from unnecessary adhesive protruding from the lower end surface of the stationary core, making the assembly process smooth. Additionally, no members are required to attach the stationary core. In addition, by providing a tapered relief part only at the lower end of the fixed side core, it is possible to distinguish between the upper and lower sides of the fixed side core when polishing the fixed side core. It becomes possible.

(実施例) 以下本発明の実施例の回転トランスについて図面ととも
に説明する。
(Example) A rotary transformer according to an example of the present invention will be described below with reference to the drawings.

第1図は本発明の一実施例の構成を示すものである。固
定シリンダ1には軸受2が設けられ軸3を支持する。軸
3の下部には軸受2に予圧を与えるボス4が取り付けら
れている。また、軸2の上部にはその外周部にマグネッ
トを有するロータ5がディスク6に設゛けられ、さらに
そのディスク6に回転シリンダ7が取り付けられる。そ
して、ディスク6の内周部には回転側の回転トランス8
が設けられている。
FIG. 1 shows the configuration of an embodiment of the present invention. A fixed cylinder 1 is provided with a bearing 2 to support a shaft 3. A boss 4 that applies preload to the bearing 2 is attached to the lower part of the shaft 3. Further, a rotor 5 having a magnet on its outer periphery is provided on a disk 6 above the shaft 2, and a rotating cylinder 7 is further attached to the disk 6. A rotary transformer 8 on the rotating side is provided on the inner circumference of the disk 6.
is provided.

一方、固定シリンダ1のハウジング9の外周には、その
下端面の内周側にテーパー状の逃げ部を有する固定側の
回転1〜ランス10が接着されており、その外周部にス
テータ11が設けられている。固定側の回転トランスl
Oをハウジング9に接着で取り付ける場合、第2図に部
分拡大図を示すように固定側の回転1〜ランス10の下
端面の内周部にはその固定側回転トランスの内厚に対し
て概略1/2と大きなテーパー状の逃げ部12が設けら
れている。
On the other hand, on the outer periphery of the housing 9 of the fixed cylinder 1, fixed-side rotation 1 to lance 10 having a tapered relief part on the inner periphery of the lower end surface are adhered, and a stator 11 is provided on the outer periphery. It is being Fixed side rotating transformer
When O is attached to the housing 9 by adhesive, as shown in the partially enlarged view in FIG. A tapered escape part 12 as large as 1/2 is provided.

そしてその外周部には下方向に伸びたターミナル13が
取り付けられ、固定シリンダ1の貫通孔14に通されて
いる。
A terminal 13 extending downward is attached to the outer peripheral portion of the terminal 13 and is passed through a through hole 14 of the fixed cylinder 1.

一方、ハウジング9の外径は固定側回転トランスlOの
内径より0.01〜0.03mmとわずかに小さな値に
設定されている6そしてハウジング9の高さ方向の概略
1/2の箇所で、その外周に帯状に接着剤が塗られる。
On the other hand, the outer diameter of the housing 9 is set to a slightly smaller value of 0.01 to 0.03 mm than the inner diameter of the fixed rotary transformer IO6, and at a location approximately 1/2 of the height of the housing 9, A strip of adhesive is applied around its outer circumference.

しかる後、固定側回転トランス10をハウジング9に上
部から挿入する。
After that, the stationary rotary transformer 10 is inserted into the housing 9 from above.

このとき、テーパー状の逃げ部12で帯状の接着剤を押
し下げていくことにより、ハウジング9と回転トランス
10の隙間に接着剤が充填される。回転トランス10の
高さはその下端面を固定シリンダ1に当接することによ
り決定される。この場合。
At this time, the gap between the housing 9 and the rotary transformer 10 is filled with the adhesive by pushing down the adhesive strip using the tapered relief portion 12 . The height of the rotary transformer 10 is determined by abutting its lower end surface against the fixed cylinder 1. in this case.

上記帯状の接着剤の量が多少、多くなっても上記テーパ
ー状の逃げ部12に接着剤を留めることができる利点も
有する。
It also has the advantage that even if the amount of the band-shaped adhesive increases to some extent, the adhesive can be retained in the tapered relief portion 12.

なお、固定側回転トランス10のコアーを所定の寸法に
研摩したり、その外周面に複数個の巻線溝を加工する場
合、上記コアーの上下の判別に上記テーパー状の逃げ部
12を用いて判定することも可能となる。
In addition, when polishing the core of the stationary rotating transformer 10 to a predetermined size or machining a plurality of winding grooves on its outer circumferential surface, the tapered relief part 12 is used to distinguish between the upper and lower parts of the core. It also becomes possible to judge.

(発明の効果) 以上のように本発明によれば、固定側コアー内周部の下
端面にテーパー状の逃げ部を設けるとともに、上記固定
側コアーの内径よりわずかに小さな径を有するハウジン
グの外周に、帯状に接着剤を塗布し、そのハウジングに
固定側コアーを挿入することにより該固定側コアーを取
り付ける。
(Effects of the Invention) As described above, according to the present invention, a tapered relief part is provided on the lower end surface of the inner peripheral part of the fixed side core, and the outer periphery of the housing has a diameter slightly smaller than the inner diameter of the fixed side core. The stationary core is attached by applying adhesive in a band shape and inserting the stationary core into the housing.

そのため、固定側回転トランスを組立てるとき回転トラ
ンスの端部から接着剤がはみ出たりする問題がなくなる
。さらに、固定シリンダ部に回転トランスを取り付ける
のに不要な部材をなくすることが可能で安価に構成でき
ると同時に、固定シリンダ内部にモータ部を構成するス
ペースも確保できる利点を有する。
Therefore, when assembling the stationary side rotating transformer, there is no problem of adhesive protruding from the end of the rotating transformer. Furthermore, it is possible to eliminate unnecessary members for attaching the rotary transformer to the fixed cylinder part, resulting in an inexpensive structure, and at the same time, there is an advantage that space for configuring the motor part can be secured inside the fixed cylinder part.

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

第1図は本発明の実施例の構成図、第2図は第1図の部
分拡大図、第3図は従来例を示す構成図である。 1・・・固定シリンダ、  8・・・回転側回転トラン
ス、 91.・ハウジング、 1o・・・固定側回転ト
ランス、 12・・・テーパー状逃げ部、13・・・タ
ーミナル、 14・・・貫通孔。 特許出願人 松下電器産業株式会社 第1図 1 ・ I]皮シソンダ 2 ・・軸綻 3・・釉 4・・・ボ久 5・・・ロータ 6 ・・ デ゛イスク 7 ・・・ !]導ム゛ノリンク“ 8・・・ 四に確噛)起転トフ)人 9゛ハクシ′ング1 10・・・ l!1足イψ・国讐ムトラ;人11   
又データ 9・・・ン\ウシ゛ンデ 10・・・ 正りミイ更・n19ムトランス12・・・
テーパーに逃ヂ舒 13・・・ ターミナル 14・・炙適5L
FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a block diagram of a conventional example. 1... Fixed cylinder, 8... Rotating side rotary transformer, 91.・Housing, 1o... Fixed side rotating transformer, 12... Tapered relief part, 13... Terminal, 14... Through hole. Patent Applicant: Matsushita Electric Industrial Co., Ltd. Figure 1 1 ・I] Leather 2 ・・Axis failure 3 ・・Glaze 4 ・Beauty 5 ・Rotor 6 ・・Disk 7 ・・ ! ] Guidance link “ 8...4.
Data 9...\Ushiunde 10... Correct Mii change/n19 Mutrance 12...
Escape to the taper 13... Terminal 14... 5L

Claims (1)

【特許請求の範囲】[Claims] 円筒形のフェライトコアの外周面に複数個の円周溝を有
し、該円周溝に巻線が施された固定側コアーと、該コア
ーと対向しその内周面に複数個の円周溝を有し、該円周
溝に巻線が施された回転側コアーとを備えた回転トラン
ス装置であって、上記固定側コアー内周部の下端面にテ
ーパー状の逃げ部を設けるとともに、下記ハウジング部
の外周に接着剤を塗布し、上記固定側コアーの内径より
わずかに小さな外径を有するハウジング部に上記固定側
コアーを取り付けたことを特徴とする回転トランス装置
A stationary core having a plurality of circumferential grooves on the outer peripheral surface of a cylindrical ferrite core and winding wires in the circumferential grooves, and a fixed side core having a plurality of circumferential grooves on the inner circumferential surface facing the core. A rotary transformer device comprising a rotating side core having a groove and a winding wire wound in the circumferential groove, the stationary side core having a tapered relief part provided on the lower end surface of the inner peripheral part thereof, A rotary transformer device characterized in that the fixed side core is attached to a housing portion having an outer diameter slightly smaller than the inner diameter of the fixed side core by applying an adhesive to the outer periphery of the housing portion.
JP61025809A 1986-02-10 1986-02-10 Rotating transformer device Expired - Lifetime JPH0766485B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61025809A JPH0766485B2 (en) 1986-02-10 1986-02-10 Rotating transformer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61025809A JPH0766485B2 (en) 1986-02-10 1986-02-10 Rotating transformer device

Publications (2)

Publication Number Publication Date
JPS62184604A true JPS62184604A (en) 1987-08-13
JPH0766485B2 JPH0766485B2 (en) 1995-07-19

Family

ID=12176197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61025809A Expired - Lifetime JPH0766485B2 (en) 1986-02-10 1986-02-10 Rotating transformer device

Country Status (1)

Country Link
JP (1) JPH0766485B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942628A (en) * 1982-08-31 1984-03-09 Matsushita Electric Ind Co Ltd Tape guide drum device
JPS6023909U (en) * 1983-07-26 1985-02-19 セイコーエプソン株式会社 rotating head cylinder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942628A (en) * 1982-08-31 1984-03-09 Matsushita Electric Ind Co Ltd Tape guide drum device
JPS6023909U (en) * 1983-07-26 1985-02-19 セイコーエプソン株式会社 rotating head cylinder

Also Published As

Publication number Publication date
JPH0766485B2 (en) 1995-07-19

Similar Documents

Publication Publication Date Title
US5138209A (en) Spindle motor
JP3373625B2 (en) Spindle motor
US5606475A (en) Magnetic disc drive motor including a fixed shaft having mounted thereon a lower bearing member with a portion for mounting a rotor
US5638233A (en) Magnetic disk drive motor having a fixed shaft with circumferential grooves for integrating the bearing therewith and having a disc abutting the outer ring of the bearing
JPS62184604A (en) Rotary transformer device
JP3020616B2 (en) Spindle motor
US5414575A (en) Magnetic disc drive device with hub and clamper assembly for reducing post-assembly machining
US5872682A (en) Disc drive motor
JPH04178161A (en) Motor
US5450261A (en) Magnetic disc drive motor having disc securely fixed to loading surface to abut upper bearing outer ring
JP2961282B2 (en) motor
JPH03285546A (en) Spindle motor
JP3348120B2 (en) motor
JPS59117258U (en) rotating electric machine
JP2924567B2 (en) Electromagnetic coupling device
JPH0357091Y2 (en)
JP2604699B2 (en) Stepper motor rotor
JPS5863067A (en) Coreless motor
JPH0869933A (en) Rotary transformer
JPH07322545A (en) Spindle motor
JPH08124288A (en) Spindle motor of magnetic disk device
JPH06274843A (en) Rotary magnetic recording and reproducing device
JPH04295245A (en) Spindle motor
KR19990025561U (en) Head drum assembly
JPH0660532A (en) Spindle motor for rotating hard disk

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term