JPH0448603U - - Google Patents
Info
- Publication number
- JPH0448603U JPH0448603U JP9001690U JP9001690U JPH0448603U JP H0448603 U JPH0448603 U JP H0448603U JP 9001690 U JP9001690 U JP 9001690U JP 9001690 U JP9001690 U JP 9001690U JP H0448603 U JPH0448603 U JP H0448603U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- return spring
- reaction force
- displacement angle
- rotates
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims 4
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electromagnets (AREA)
Description
第１図は本考案の実施例を示した正面図、第２
図Ａは従来のアクチユエータの正面図、第２図Ｂ
は同図Ａの右側面図、第３図Ａは内燃機関のスロ
ツトルバルブを示した正面縦断面図、同図Ｂは同
図Ａの側面図、第４図は本考案が対象とするアク
チユエータの変位角と磁束量との関係を励磁電流
をパラメータにとつて示した線図、第５図は従来
のアクチユエータの発生トルク対変位角特性及び
リターンスプリングの反力による荷重トルク対変
位角特性を示す線図、第６図は本考案の実施例の
アクチユエータの発生トルク対変位角特性及びリ
ターンスプリングの反力による荷重トルク対変位
角特性を示す線図、第７図は本考案の実施例及び
従来例の励磁電流対変位角特性を比較して示した
線図、第８図は本考案の実施例及び従来例の差動
係数対変位角特性を比較して示した線図、第９図
は負荷の軸摩擦トルクとバルブ開度との関係を示
す線図である。
１……ロータ、１ａ……ロータ磁極部、２……
回転軸、３……ステータ、４……ステータ鉄心、
４ａ……ステータ磁極部、５……励磁コイル、６
……ストツパ、７……リターンスプリング、８，
９……フツクピン。
Figure 1 is a front view showing an embodiment of the present invention, Figure 2 is a front view showing an embodiment of the present invention.
Figure A is a front view of a conventional actuator, Figure 2B
is a right side view of Figure A, Figure 3A is a front vertical sectional view showing the throttle valve of an internal combustion engine, Figure B is a side view of Figure A, and Figure 4 is the actuator to which the present invention is applied. Figure 5 shows the relationship between the displacement angle and the amount of magnetic flux using the excitation current as a parameter. FIG. 6 is a graph showing the generated torque versus displacement angle characteristic of the actuator according to the embodiment of the present invention and the load torque versus displacement angle characteristic due to the reaction force of the return spring, and FIG. 7 is a diagram showing the embodiment of the present invention and FIG. 8 is a diagram comparing the excitation current vs. displacement angle characteristics of the conventional example, and FIG. 9 is a diagram comparing the differential coefficient vs. displacement angle characteristics of the embodiment of the present invention and the conventional example. is a diagram showing the relationship between the shaft friction torque of the load and the valve opening degree. 1... Rotor, 1a... Rotor magnetic pole part, 2...
Rotating shaft, 3... stator, 4... stator core,
4a... Stator magnetic pole part, 5... Excitation coil, 6
...Stopper, 7...Return spring, 8,
9...Futsukupin.
Claims (1)
ステータと、第１の位置と第２の位置との間を回
動し得るように設けられたロータと、前記ロータ
を第１の位置側に付勢するリターンスプリングと
を備えてなり、前記ロータは前記第１の位置側か
ら第２の位置側に回動するにしたがつて軸摩擦ト
ルクが減少する特性を有する負荷の操作軸に連結
される電磁石式のロータリーアクチユエータにお
いて、 前記ロータが第１の位置から第２の位置側に回
動するに従つて前記ロータの変位角に対するリタ
ーンスプリングの反力の増加割合が減少するよう
に前記リターンスプリングの反力の特性が設定さ
れていることを特徴とするロータリーアクチユエ
ータ。 (2) ステータ鉄心に励磁コイルを巻装してなる
ステータと、第１の位置と第２の位置との間を回
動し得るように設けられたロータと、前記ロータ
を第１の位置側に付勢するリターンスプリングと
を備えてなり、前記ロータは前記第１の位置側か
ら第２の位置側に回動するにしたがつて軸摩擦ト
ルクが減少する特性を有する負荷の操作軸に連結
される電磁石式のロータリーアクチユエータにお
いて、 前記ロータが第１の位置から第２の位置側に回
動するに従つて前記ロータの変位角に対するリタ
ーンスプリングの反力の増加割合が減少するよう
に、かつ前記励磁コイルの励磁電流の変化に対し
て前記変位角が直線的に変化するように前記リタ
ーンスプリングの反力の特性が設定されているこ
とを特徴とするロータリーアクチユエータ。[Claims for Utility Model Registration] (1) A stator formed by winding an excitation coil around a stator core, a rotor provided to be able to rotate between a first position and a second position, a return spring that biases the rotor toward the first position, and the rotor has a characteristic in which shaft friction torque decreases as it rotates from the first position to the second position. In an electromagnetic rotary actuator connected to an operating shaft of a load, as the rotor rotates from a first position to a second position, a reaction force of a return spring against a displacement angle of the rotor increases. A rotary actuator characterized in that the characteristics of the reaction force of the return spring are set such that the rate of increase in the return spring decreases. (2) a stator formed by winding an excitation coil around a stator core; a rotor provided so as to be able to rotate between a first position and a second position; and a return spring that biases the rotor, and the rotor is connected to a load operating shaft having a characteristic that shaft friction torque decreases as the rotor rotates from the first position to the second position. In the electromagnetic rotary actuator, as the rotor rotates from the first position to the second position, the rate of increase in the reaction force of the return spring with respect to the displacement angle of the rotor decreases. and a characteristic of the reaction force of the return spring is set such that the displacement angle changes linearly with a change in the excitation current of the excitation coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9001690U JPH071765Y2 (en) | 1990-08-30 | 1990-08-30 | Rotary actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9001690U JPH071765Y2 (en) | 1990-08-30 | 1990-08-30 | Rotary actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0448603U true JPH0448603U (en) | 1992-04-24 |
| JPH071765Y2 JPH071765Y2 (en) | 1995-01-18 |
Family
ID=31824418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9001690U Expired - Lifetime JPH071765Y2 (en) | 1990-08-30 | 1990-08-30 | Rotary actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071765Y2 (en) |
-
1990
- 1990-08-30 JP JP9001690U patent/JPH071765Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH071765Y2 (en) | 1995-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |