JPS5853804A - Electromagnetic device - Google Patents

Electromagnetic device

Info

Publication number
JPS5853804A
JPS5853804A JP15348981A JP15348981A JPS5853804A JP S5853804 A JPS5853804 A JP S5853804A JP 15348981 A JP15348981 A JP 15348981A JP 15348981 A JP15348981 A JP 15348981A JP S5853804 A JPS5853804 A JP S5853804A
Authority
JP
Japan
Prior art keywords
coil
coils
iron core
electromagnet
exciting
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
JP15348981A
Other languages
Japanese (ja)
Other versions
JPS6224922B2 (en
Inventor
Hiroaki Tsuruta
鶴田　裕昭
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.)
Togami Electric Mfg Co Ltd
Original Assignee
Togami Electric Mfg 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 Togami Electric Mfg Co Ltd filed Critical Togami Electric Mfg Co Ltd
Priority to JP15348981A priority Critical patent/JPS5853804A/en
Publication of JPS5853804A publication Critical patent/JPS5853804A/en
Publication of JPS6224922B2 publication Critical patent/JPS6224922B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To eliminate a trouble due to a shading coil and thereby to improve the mechanical durability of an iron core by a method wherein a plurality of exciting coils are employed without using the shading coil and an impedance for adjusting the mutual phase angles of exciting currents and the mutual magnitude of aspirating magnetic flux is inserted into an excitation circuit corresponding to the exciting coils. CONSTITUTION:An iron core 1 is constituted by combining two angle irons with their angle sides opposed, while two exciting coils 2 and 3 are arranged from gaps formed by the angle parts over to outer peripheries respectively, and are made to generate clockwise magnetic fluxes phi1 and phi2 respectively. An operation circuit exciting this electromagnet is constituted by a method wherein, when the coils 2 and 3 are connected in parallel, an impedance 4 for adjusting a phase angle, consisting of a resistor r3 and a capacitance C, is connected serially to the coil 3. By this constitution, the beat of the iron core 1 can be eliminated without using a shading coil, and thus the constitution of the electromagnet can be simplified.

Description

【発明の詳細な説明】 本発明紘電磁接触器等に使用される電磁石装置に関する
・ 従来より交流電磁石のうなり防止方法としては広く〈１
取プコイルが使用されているが、〈ま取りコイルによっ
て二次的に発生する遅れ磁束はかなり歪んでお砂、磁束
遅れ角も７０〜８゜度程度で磁束の平滑化が充分でない
・また、くま取りコイルによって吸引力波形はかなり平
滑化されるが、脈動紘残るため、電磁石負荷が大きい時
や電磁石の磁極の接触状態、整合状態が悪ければ、鉄心
のうな艶を発生することがあったＯ 本発明はこれらの点に鑑み、くま取りコイルを使用せず
、励磁コイルを複数として相互の励磁コイルをずらして
鉄心のうな艶を防止する電磁石装置を提供するものであ
る・ 以下、本発明の実施例を図面にもとづき説明する・ 第１図は本発明の実施例の構造を示し、１は電磁石鉄心
、２は菖１のコイル、５は第２のコイルを示す。［１＋
１第１の；イル２による磁束。[Detailed Description of the Invention] The present invention relates to an electromagnet device used in a Hiromagnetic contactor etc. Conventionally, it has been widely used as a method for preventing beating of an AC electromagnet.
A coil coil is used, but the delayed magnetic flux generated secondary by the coil is considerably distorted and the magnetic flux delay angle is around 70 to 8 degrees, which does not smooth the magnetic flux sufficiently. Although the attractive force waveform is considerably smoothed by the shaded coil, pulsation remains, so when the electromagnet load is large or the contact and alignment conditions of the electromagnet's magnetic poles are poor, the iron core can become shiny. O In view of these points, the present invention provides an electromagnetic device that does not use a shaded coil, uses a plurality of excitation coils, and shifts the excitation coils from each other to prevent the iron core from becoming glossy.Hereinafter, the present invention will be described as follows. An embodiment of the present invention will be described based on the drawings. Fig. 1 shows the structure of an embodiment of the present invention, where 1 is an electromagnetic core, 2 is a coil of an iris 1, and 5 is a second coil. [1+
1 first; magnetic flux due to il 2;

ｆ２は第２のコイル３による磁束で、それぞれ右回りの
方向を正とする・ 蘂２図、ＵＳ図線操作回路図及びベクトル図でｉは給与
電圧％　ｒ　１　ｔ　Ｌ　１は第１のコイル２の抵抗及
びインダクタンス、ｒ　２１　　Ｌ　２　ハｔｌｉ　２
　’２）コイル３の抵抗及びインダクタンス、Ｍはコイ
ル２．３の間の相互インダクタンス、４は第２のコイル
３の回路に挿入された位相角調整用インピーダンスで、
この場合、抵抗ｒ５．キャパシタンスＯｆ：直列に接続
している。f2 is the magnetic flux due to the second coil 3, with the clockwise direction being positive respectively. In Figure 2, US diagram operating circuit diagram and vector diagram, i is the supply voltage % r 1 t L 1 is the first coil 2 resistance and inductance, r 21 L 2 Hatli 2
'2) The resistance and inductance of the coil 3, M is the mutual inductance between the coils 2 and 3, 4 is the phase angle adjustment impedance inserted in the circuit of the second coil 3,
In this case, resistance r5. Capacitance Of: Connected in series.

〒１．〒２は第１及び第２のコイル２．３の励磁電流で
ある。第１のコイル２’（’ｒｌ、“Ｌｌ）と第２のコ
イル５　（ｒ２．Ｌ２）とインピーダンス４の直列回路
はそれぞれ操作電源ｉに接続され、従って全励磁電流ｌ
は 工＝１１＋１２ となる＠ 今、計算を簡単にするためｇｇｌ及び第２のコイル２，
５に同一インピーダンスのものを用いたとし、ｒｌ＝ｒ
２＝ｒ＋　　Ｌ１＝Ｌ２＝Ｌとする。〒1. 〒2 is the excitation current of the first and second coils 2.3. The series circuit of the first coil 2'('rl,"Ll), the second coil 5 (r2.L2) and the impedance 4 is each connected to the operating power supply i, so that the total excitation current l
= 11+12 @ Now, to simplify the calculation, we will use ggl and the second coil 2,
5 with the same impedance, rl=r
2=r+ L1=L2=L.

回路方程式よシ １＝ｒ工１＋ｊＷＬ工１＋ｊｗＭＸ２　−−−−−　　
（１）Ｒ＝　（ｒ＋ｒ３）　Ｉ２−　ｊ　（−Ｌ−ＬＡ
ＪＬ）　；２＋ｊｕｚＭ４１　−−−　（２）−〇 こζで鉄心のうなりを防止する最適条件は第１のコイル
２と第２のコイル３による磁束ｆ１と１２の大きさが等
しく、位相差が９０°の時であシ、従って第１と第２の
コイル２，５の励磁電ｔＩｔｘ１とｘ２の大きさが等し
く位相差が９０゜の時である・ 従って満足すべき条件線 ゾ２−　ｙ１＝ｐｏ°、１ｉｌ＝ｌ〒２１＝工または工
２　＝　ｊｘｌ 電流量１の電圧ｉよりの遅れ位相角１１社Ｖ１　＝　ｔ
ａｎ−’　−；τ万ｉ である０ ｉ２＝ｊ〒１の式を上記（１）、　＜２）式に代入する
とｉ＝（（ｙ−ｗＭ）÷３ｕａＬｌｉ１−−−一−（５
）Ｍ＝（（ｒ＋ｒ５÷ｕＭ）　−ｊ　＜　−−ＬＡＪＬ
）　１２−−−　ｔｓ）ＬＩＯ （５）、　（４）式より （ｒ＋ＬａＪ　（Ｌ−Ｍ）　　−’−１＋ｊ　ｌｕｕ　
（Ｌ−Ｍ）　　−ｒ−ｒｓ　（０−−−（５）０ ＋）Ｊ（Ｌ−Ｍ）−ｒ−ｒｓｚＯ−−−−−（７）上記
の（６）、　（７３式をベクトル図で説明すると、纂５
図の平行四辺形ｏｂａｏかも ｏｂｚａ＊、ｂａ＝ｏ。Circuit equation: 1=r 1+jWL 1+jwMX2 −−−−−
(1) R= (r+r3) I2- j (-L-LA
JL) ;2+juzM41 --- (2) The optimal conditions for preventing the beat of the iron core in -〇koζ are that the magnitudes of the magnetic fluxes f1 and 12 from the first coil 2 and the second coil 3 are equal, and the phase difference is 90 Therefore, when the excitation electric currents tItx1 and x2 of the first and second coils 2 and 5 are equal in magnitude and the phase difference is 90°, the condition line to be satisfied is zo2-y1= po°, 1il = l〒21 = engineering or engineering 2 = jxl Lag phase angle of current amount 1 from voltage i 11 companies V1 = t
Substituting the equation of 0 i2=j〒1, which is an-'−;
)M=((r+r5÷uM) −j < −−LAJL
) 12--- ts) LIO (5), From formula (4), (r+LaJ (LM) -'-1+j luu
(LM) −r−rs (0−−−(5)0 +)J(LM)−r−rszO−−−−−(7) Above (6), (73 equation is vector diagram To explain it, 5
The parallelogram obao in the figure is also obza*, ba=o.

従って ｒ＋ｒ５＋１＋１ｇｘ、＋　’Ｌ　　　−−−−−（７
’）上記（６）、　（７）弐または（６’）、、　、（
７’）式からｒ　ＳＭｍ−ｒ＋　　＋ｔ・（Ｌ−Ｍ）　
　　　−−−−−（’）ｒ　Ｓ　Ｍｒ−ｒ　＋　ＬＬ、
　（Ｌ　−Ｍ　）ｒ５＝−ｒ＋イ・（Ｌ−Ｍ）の抵抗を
＃ｉ！２のｗ　４　＃　５　Ｋ　４１人することにより
電磁石の吸引力が最も平滑化され、うなり防止ができる
。Therefore, r+r5+1+1gx, + 'L ------(7
') Above (6), (7) 2 or (6'), , (
7') From formula r SMm-r+ +t・(LM)
------(')r S Mr-r + LL,
(L-M)r5=-r+i・Resistance of (LM) is #i! 2 w 4 # 5 K 41 By doing so, the attraction force of the electromagnet is smoothed out the most and whirring can be prevented.

一例として、　ｒ＝２７０１３．　Ｌ−５，２１）−周
＃ＩＬ数ｆ＝６０（Ｉｌｇ）とすると 、」・Ｌ−１９５９，４（Ω） ωＭ＝１＋６５７．９（Ω） ；、ｏ−４，１５４（μ？） ｒ　５＝−ｒ＋ｕ、＋Ｌ　−ｕ）Ｍ＝５　ｔｓ　　（Ω
）に比し、抵抗ｒ５の抵抗値は小さく実用１社省略可能
である。As an example, r=27013. L-5,21) - Cycle #IL number f = 60 (Ilg), ``L-1959,4 (Ω) ωM = 1 + 657.9 (Ω) ;, o-4,154 (μ?) r 5=-r+u, +L-u) M=5 ts (Ω
), the resistance value of the resistor r5 is small and can be omitted in practical use.

以下、抵抗ｒ３＝０とした場合について解析するＯ 第４図、纂５図は操作回路図及びベクトル図で第２図、
第３図と同等または相当部分は同一符号で表わしている
。Below, we will analyze the case where the resistance r3 = 0. Figures 4 and 5 are operating circuit diagrams and vector diagrams.
Portions equivalent to or corresponding to those in FIG. 3 are indicated by the same reference numerals.

ｉは給与電圧、ｒｊ、Ｌｌは第１のコイル２の抵抗及び
インダクタンス、ｒ２．Ｌ２は第２のコイル３の抵抗及
びインダクタンス、Ｍはコイル２．５相互インダクタン
ス、４は纂２のコイル３の回路に挿入され九位相調整用
インピーダンスで、この場合、キャパシタンスＯ？　直
列に接続している。i is the supply voltage, rj, Ll are the resistance and inductance of the first coil 2, r2. L2 is the resistance and inductance of the second coil 3, M is the mutual inductance of the coil 2.5, 4 is the nine-phase adjustment impedance inserted into the circuit of the coil 3 of series 2, and in this case, the capacitance O? connected in series.

工１．１２は第１及び第２のコイル２，３の励磁電流で
ある。第１のコイル２　　（ｒｌ、Ｌｌ）と菖２のコイ
ルＳ　　（ｒ　２　ｔ　　Ｌ　２　）　とインピーダン
ス４の直列回路は、それぞれ操作電源士に接続され、従
って全励磁電流ｉは Ｉ　＝　工　１　＋　Ｉ　２ となる。1.12 is the excitation current of the first and second coils 2 and 3. The series circuit of the first coil 2 (rl, Ll), the coil S of the irises 2 (r 2 t L 2 ) and the impedance 4 is connected to the operating power supply, respectively, so that the total excitation current i is I = engineering 1 + It becomes I 2 .

今、計算を簡単にするため、纂１及びｉｇ２のコイル２
．３に同一インピーダンスめものを用いたとし、ｒｌ＝
ｙ２＝ｒ、Ｌ１＝Ｌ２＝ＬとするＯ 回路方程式よ抄 １＝ｒ工１＋ｊＩｊＪＬ工１＋ｊωＭ工２　−−−　　
（１１）１＝ｒ登２−ｊ寄−ｋｗＬ）１２＋ｊψＭデ１
−一−（１２）ここで鉄心のうなりを防止する最適条件
は第１のコイル２と第２のコイル３による磁束ｆ１とＮ
２の大きさが等しく１位相差が９０．。の時で６９、従
って第１と第２のコイル２，５の励磁電流工１とｘ２の
大きさが等しく位相差が９０゜の時である・ 従って、満足すべき条件は ’／２−％１＝ｐｏ°１μｍ１−μ２１＝工または、Ｎ
２−ｊｌｌ 電流１１の電圧ｉよりの遅れ位相角＋ｆ１社ゴー　＝　
ｔａｎ”−凹エー ｒ−−Ｍ 電Ｒ１２の電圧ｉよりの進与位相角ｙ２紘９　”　＝　
””−’ｄ である。Now, to simplify the calculation, coil 2 of coil 1 and ig2
．． Assuming that the same impedance is used for 3, rl=
Set y2=r, L1=L2=L O Circuit equation 1=r 1+jIjJL 1+jωM 2 ---
(11) 1=r 2-j yi-kwL) 12+jψM de 1
-1-(12) Here, the optimal conditions for preventing the iron core from beating are the magnetic flux f1 and N caused by the first coil 2 and the second coil 3.
2 have the same magnitude and 1 phase difference is 90. . 69, therefore, when the magnitudes of the excitation currents 1 and x2 of the first and second coils 2 and 5 are equal and the phase difference is 90°. Therefore, the condition to be satisfied is '/2-% 1=po°1μm1-μ21=technique or N
2-jll Delay phase angle of current 11 from voltage i + f1 company go =
tan''-Concave air r--M Applied phase angle y2 from voltage i of electric R12 9'' =
""-'d.

ただし、この場合、両条件を同時に満足できないので、
コイル２．５の構成を適当にし、ｌｉ　１１＝ｌｉ　２
１の条件は近似的に満足式せるものとする・ 工２＝ｊｉ１のくを上記（１υ、　　（１２）式に代入
すると ｉ＝１　（ｒ−ｔｕＭ）＋３ｗｔ１ｉ１−−−−−　＜
１ｓ＞ｉ、＝　ｉ　（ｒ＋ωｌＯ−ｊ　にｊｆ；−４）
　）Ｎ２−−−　、（１４）（１５）　、　　（１４）
式よ）　■・Ｙｌｒ＋ｕＪ（Ｌ−Ｍ）−１＋１ｌＬｉＪ
（Ｌ−ｎ）−ｒｌ＝ｏ　　　（１５）Ｌ＋ＪＱ 上記（１６）、　（１７）式をベクトル図で説明すると
、第５図の平行四辺形ｏｂａｃから ｏｂ５ｃａ、ｂａｇｇｏａ 従って ｒ　＋ｃｕＭ＝ｕＪＬ　　　、’、　ｒ＝ｕＪ（ＩＩ−
Ｍ）となる。However, in this case, both conditions cannot be satisfied at the same time, so
Set the configuration of coil 2.5 appropriately, li 11=li 2
Assume that the condition 1 is satisfied approximately.Substituting the value of k2=ji1 into the above equation (1υ, (12)) gives i=1 (r-tuM)+3wt1i1−−−−− <
1s>i, = i (r+ωlO−j to jf;−4)
)N2---, (14) (15), (14)
(Formula) ■・Ylr+uJ(LM)-1+1lLiJ
(L-n)-rl=o (15)L+JQ To explain the above equations (16) and (17) using a vector diagram, from the parallelogram obac in FIG. =uJ(II-
M).

上式から ０＝　　　−−−−−（１９） 　ｗ　ｒ 即ちコイルｔ　ｒ　＝（ＪＪ（Ｌ　−Ｍ）になるように
製作し、−ニーのキャパシターｔｇ２のコイル３２ω　
ｒ に挿入することにより電磁石の吸引力が最も平滑化され
、うなシ防止ができる。From the above formula, 0 = ---- (19) w r In other words, the coil tr = (JJ (L - M) is made so that the coil 32ω of the -knee capacitor tg2
By inserting it in the position R, the attraction force of the electromagnet is smoothed out to the maximum, and it is possible to prevent the electromagnet from collapsing.

一例として、ｒ＝５００（Ω）、Ｌ＝５．２四。As an example, r=500 (Ω), L=5.24.

Ｍ＝４４＠）、周波数ｆ＝６０’（１１１１）とすると
ｗＬ＝　１９５９．４　　（Ω） （、Ｌ）Ｍ＝１６５７．９　　（Ω） （Ｊ、）Ｌ−ｗＭ＝　５０１．５　　（Ω）；−、ｒｏ
　＝１＝　４．　＜　２　　（Ｊ　Ｐ）２ωｒ なお、ｒ＝ｃＡＪ（Ｌ−Ｍ）の条件は概略近似的に満足
できれば、所期の目的は達し得るＯ特に、５０Ｈｓｉ、
６０Ｈｍ兼用轡の場合は−の値が変わるので、各周波数
におけるωΦ値の中間値でｒｔ設定すれば概略近似的に
両方満足できる・上記回路における磁束波形特性、吸引
力特性は第６図、第７図のようになる。M=44@), frequency f=60' (1111), then wL= 1959.4 (Ω) (,L)M=1657.9 (Ω) (J,)L-wM= 501.5 (Ω) ;-, ro
=1=4. < 2 (J P)2ωr Note that if the condition r = cAJ (LM) can be approximately satisfied, the desired objective can be achieved. In particular, 50Hsi,
In the case of a 60Hm dual-purpose bicycle, the negative value changes, so if rt is set at the intermediate value of the ωΦ value at each frequency, both can be approximately satisfied.The magnetic flux waveform characteristics and attraction force characteristics in the above circuit are shown in Figure 6 and It will look like Figure 7.

第６図において、７１はコイル２による磁束波形、Ｎ２
ｔｉコイル３による磁束波形を示し、その位相差が９０
’であることを示す。また、第７図において、？１は磁
束１１による吸引力波形、１２は磁束Ｉ２による吸引力
波形、ＩＰＯはＦ１４Ｆ２で総数引力波形を示す。In Fig. 6, 71 is the magnetic flux waveform due to coil 2, N2
The magnetic flux waveform due to the ti coil 3 is shown, and the phase difference is 90
' indicates that Also, in Figure 7, ? 1 indicates the attractive force waveform due to the magnetic flux 11, 12 indicates the attractive force waveform due to the magnetic flux I2, and IPO indicates the total attractive force waveform at F14F2.

図から分るように磁束波形１１．Ｎ２の位相差　　　　
゛を９０’にすることができ、平滑度はくま取りコイル
に比し約２〜Ｓ割改！でき電磁石のうなシを防止できる
・　　。As can be seen from the figure, magnetic flux waveform 11. N2 phase difference
゛ can be made to 90', and the smoothness is about 2~S lower than that of a darkening coil! It can prevent the electromagnet from collapsing.

本発明は以上のように、〈ま取りコイルを使用せず、励
磁コイルを複数として、コイルの励磁回路に励磁電流相
配の位相角および吸引磁束相互の大きさを調整するイン
ピーダンスを挿入することにより、くま取りコイルの折
損等によるうなりの発生めるいは機械的寿命の短縮がな
く大輪な鉄心の機械的耐久性の向上が図れる電磁石装置
を得ることができる。As described above, the present invention uses a plurality of excitation coils without using a rounded coil, and inserts an impedance in the excitation circuit of the coil to adjust the phase angle of the excitation current arrangement and the mutual magnitude of the attracted magnetic flux. Therefore, it is possible to obtain an electromagnetic device that can improve the mechanical durability of a large-sized iron core without generating beats or shortening the mechanical life due to breakage of the shaded coil or the like.

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

図面は本発明の実施例を示し、第１図社電磁石の構造説
明図、第２図および第４図は操作回路図、Ｍ３図および
第５図はベクトル図、第６図は磁束波形特性図、ｊｌＥ
Ｚ図は吸引力波形特性図でおる・ １：電磁石鉄心、２：第１のコイル、３：第２のコイル
、４：位相角調整用インピーダンス。 特許出願人 株式会社戸上電機製作所 代表者　戸　上　　　− 箪ｌ同 第２図 譲る図The drawings show embodiments of the present invention; Figure 1 is an explanatory diagram of the structure of the electromagnet, Figures 2 and 4 are operating circuit diagrams, Figures M3 and 5 are vector diagrams, and Figure 6 is a magnetic flux waveform characteristic diagram. ,jlE
The Z diagram is an attractive force waveform characteristic diagram. 1: Electromagnet iron core, 2: First coil, 3: Second coil, 4: Impedance for phase angle adjustment. Patent Applicant Togami Electric Manufacturing Co., Ltd. Representative Togami - Figure 2.

Claims (1)

【特許請求の範囲】 （１）〈ま取シコイルを使用せず、励磁コイルを複数と
して、コイルの励磁回路に励磁電流相互の位相角および
吸引磁束相互の大きさを調整するインピーダンスを挿入
したことを％黴とする電磁石装置。 シ）励磁コイルを２個とし、その一方にキャパシタンス
を挿入したことを特徴とする特許請求の範囲第１項記載
の電磁石装置。 （３）励磁コイル！２個とし、その一方にキャパシタン
スと抵抗を挿入したことｔ−特徴とする特許請求の範囲
１１ｇ１項記載の電磁石装置。[Claims] (1) <Without using a coil, a plurality of excitation coils are used, and an impedance is inserted in the excitation circuit of the coils to adjust the mutual phase angle of the excitation currents and the mutual magnitude of the attracted magnetic flux. An electromagnetic device that uses % mold. (b) The electromagnet device according to claim 1, characterized in that there are two excitation coils, and a capacitance is inserted into one of them. (3) Excitation coil! The electromagnet device according to claim 11g1, characterized in that there are two electromagnets, and a capacitance and a resistance are inserted into one of them.
JP15348981A 1981-09-26 1981-09-26 Electromagnetic device Granted JPS5853804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15348981A JPS5853804A (en) 1981-09-26 1981-09-26 Electromagnetic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15348981A JPS5853804A (en) 1981-09-26 1981-09-26 Electromagnetic device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP29725786A Division JPS62149103A (en) 1986-12-13 1986-12-13 Electromagnetic device

Publications (2)

Publication Number Publication Date
JPS5853804A true JPS5853804A (en) 1983-03-30
JPS6224922B2 JPS6224922B2 (en) 1987-05-30

Family

ID=15563681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15348981A Granted JPS5853804A (en) 1981-09-26 1981-09-26 Electromagnetic device

Country Status (1)

Country Link
JP (1) JPS5853804A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613072A (en) * 1984-06-06 1986-01-09 ドイチエ・アイテイーテイー・インダストリーズ・ゲゼルシヤフト・ミト・ベシユレンクタ・ハフツンク Detector for digital phase
JPS62149103A (en) * 1986-12-13 1987-07-03 Togami Electric Mfg Co Ltd Electromagnetic device
WO2008129672A1 (en) * 2007-04-18 2008-10-30 Mitsubishi Electric Corporation Brake system for elevator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS613072A (en) * 1984-06-06 1986-01-09 ドイチエ・アイテイーテイー・インダストリーズ・ゲゼルシヤフト・ミト・ベシユレンクタ・ハフツンク Detector for digital phase
JPH0685488B2 (en) * 1984-06-06 1994-10-26 ドイチエ・アイテイーテイー・インダストリーズ・ゲゼルシヤフト・ミト・ベシユレンクタ・ハフツンク Digital phase detector
JPS62149103A (en) * 1986-12-13 1987-07-03 Togami Electric Mfg Co Ltd Electromagnetic device
WO2008129672A1 (en) * 2007-04-18 2008-10-30 Mitsubishi Electric Corporation Brake system for elevator

Also Published As

Publication number Publication date
JPS6224922B2 (en) 1987-05-30

Similar Documents

Publication Publication Date Title
Sakamoto et al. Large air-gap coupler for inductive charger [for electric vehicles]
EP1107418A3 (en) Magnetically coupled autonomous battery equalization circuit
WO1992015051A1 (en) Shunt coil controlled transformer
Alexanderson et al. A magnetic amplifier for radio telephony
JPS5853804A (en) Electromagnetic device
Tesla Complete Patents of Nikola Tesla
EP0984462A3 (en) Electrical transformer
US1298727A (en) Vibrating rectifier.
JPS6159047B2 (en)
JP2717354B2 (en) High frequency induction heating coil
US9203331B2 (en) High performance electric machine without a collector
US2455253A (en) Vibrator and circuit therefor
JPS62149103A (en) Electromagnetic device
CN216794730U (en) Balance car motor coil
US1186012A (en) Alternating-current electromagnet.
JP3198790B2 (en) Three-phase to multi-phase conversion transformer
Hawkins et al. The Dynamo
US1968853A (en) Multiphase motor
KR850002830Y1 (en) Charging apparatus
JPS5930453Y2 (en) Multidirectional magnetization device for magnetic flaw detection
JPH01501356A (en) Single-phase and multi-phase electromagnetic induction machines with adjusted magnetic pole symmetry
JPS6141387Y2 (en)
RU1835094C (en) Transformer
US1575729A (en) Alternating-current motor
SU1096737A1 (en) D.c. machine with radial stabilization of rotating armature