JPH0272668U - - Google Patents
Info
- Publication number
- JPH0272668U JPH0272668U JP15235688U JP15235688U JPH0272668U JP H0272668 U JPH0272668 U JP H0272668U JP 15235688 U JP15235688 U JP 15235688U JP 15235688 U JP15235688 U JP 15235688U JP H0272668 U JPH0272668 U JP H0272668U
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- linear motor
- voice coil
- type linear
- coil type
- 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
Links
- 239000003302 ferromagnetic material Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
第１図ａは本考案の実施例を示す斜視図、第１
図ｂは同要部平面図、第２図および第３図は各々
従来の例を示す斜視図である。
１……外周ヨーク、２……センターヨーク、３
……永久磁石、８ａ……分割片、８ｂ，８ｃ……
溝、９……ボビン。
Figure 1a is a perspective view showing an embodiment of the present invention;
FIG. b is a plan view of the main part, and FIGS. 2 and 3 are perspective views showing conventional examples. 1...Outer yoke, 2...Center yoke, 3
...Permanent magnet, 8a...Divided piece, 8b, 8c...
Groove, 9...Bobbin.
Claims (1)
ヨーク内に、強磁性材料からなる円筒状のセンタ
ーヨークを設けると共に、外周ヨークの開放端に
強磁性材料からなる中空円板状のカウンターヨー
クを設け、これらのヨーク相互間を磁気的に結合
し、前記外周ヨークの内周面に中空円筒状の永久
磁石を固着し、この永久磁石と前記センターヨー
クとの間隙に可動コイルを軸方向移動自在に配設
してなるボイスコイル型リニアモータにおいて、
中間部における横断面形状を略同一に形成した籠
形状のボビンの端部に可動コイルを設け、カウン
ターヨークを扇形状の複数個の分割片を磁気的に
結合して形成すると共に、分割片の内周面および
／または分割面に開口する溝を設け、前記ボビン
の中間部がカウンターヨークの溝を貫通するよう
に構成したことを特徴とするボイスコイル型リニ
アモータ。 (2) カウンターヨークを４個の分割片によつて
形成した請求項(1)記載のボイスコイル型リニア
モータ。 (3) 永久磁石の円周方向および／または軸方向
に分割部が存在する請求項(1)若しくは(2)記載の
ボイスコイル型リニアモータ。[Claims for Utility Model Registration] (1) A cylindrical center yoke made of a ferromagnetic material is provided within a bottomed hollow cylindrical outer yoke made of a ferromagnetic material, and a ferromagnetic material is provided at the open end of the outer yoke. A hollow disk-shaped counter yoke is provided, these yokes are magnetically coupled to each other, a hollow cylindrical permanent magnet is fixed to the inner peripheral surface of the outer peripheral yoke, and this permanent magnet and the center yoke are connected to each other. In a voice coil type linear motor in which a moving coil is disposed in a gap so as to be movable in the axial direction,
A movable coil is provided at the end of a cage-shaped bobbin with substantially the same cross-sectional shape at the middle part, and a counter yoke is formed by magnetically coupling a plurality of fan-shaped divided pieces. 1. A voice coil type linear motor, characterized in that a groove is provided in an inner circumferential surface and/or a dividing surface, and the intermediate portion of the bobbin passes through the groove in a counter yoke. (2) The voice coil type linear motor according to claim (1), wherein the counter yoke is formed by four divided pieces. (3) The voice coil type linear motor according to claim (1) or (2), wherein a divided portion exists in the circumferential direction and/or the axial direction of the permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988152356U JPH0727824Y2 (en) | 1988-11-22 | 1988-11-22 | Voice coil type linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988152356U JPH0727824Y2 (en) | 1988-11-22 | 1988-11-22 | Voice coil type linear motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0272668U true JPH0272668U (en) | 1990-06-04 |
| JPH0727824Y2 JPH0727824Y2 (en) | 1995-06-21 |
Family
ID=31427209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988152356U Expired - Fee Related JPH0727824Y2 (en) | 1988-11-22 | 1988-11-22 | Voice coil type linear motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0727824Y2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149610A (en) * | 1977-05-31 | 1978-12-27 | Nec Corp | Voice coil type linear motor |
| JPS54141316U (en) * | 1978-03-24 | 1979-10-01 | ||
| JPS55176084U (en) * | 1979-06-04 | 1980-12-17 | ||
| JPS61203858A (en) * | 1985-03-05 | 1986-09-09 | Secoh Giken Inc | Voice coil type actuator |
| JPS6228585U (en) * | 1985-08-01 | 1987-02-20 |
-
1988
- 1988-11-22 JP JP1988152356U patent/JPH0727824Y2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53149610A (en) * | 1977-05-31 | 1978-12-27 | Nec Corp | Voice coil type linear motor |
| JPS54141316U (en) * | 1978-03-24 | 1979-10-01 | ||
| JPS55176084U (en) * | 1979-06-04 | 1980-12-17 | ||
| JPS61203858A (en) * | 1985-03-05 | 1986-09-09 | Secoh Giken Inc | Voice coil type actuator |
| JPS6228585U (en) * | 1985-08-01 | 1987-02-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0727824Y2 (en) | 1995-06-21 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |