JPH027492B2 - - Google Patents
Info
- Publication number
- JPH027492B2 JPH027492B2 JP9681984A JP9681984A JPH027492B2 JP H027492 B2 JPH027492 B2 JP H027492B2 JP 9681984 A JP9681984 A JP 9681984A JP 9681984 A JP9681984 A JP 9681984A JP H027492 B2 JPH027492 B2 JP H027492B2
- Authority
- JP
- Japan
- Prior art keywords
- electromagnet
- iron piece
- movable iron
- force
- contact fitting
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 49
- 229910052742 iron Inorganic materials 0.000 claims description 22
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、機器に組み込んで電源周波数に対応
して回路の切り替えを行なう継電器に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a relay that is incorporated into equipment and switches circuits in accordance with power frequency.
従来例の構成とその問題点
一般に誘導電動機、同期電動機を異なる周波数
で使用した場合、温度上昇、最大トルク等の変化
が大きく、同じ性能で使用したい場合には巻線の
切り替えが必要になる。また電源周波数同期型の
タイマー回路でも周波数に応じた回路の切り替え
が必要である。そこでこれらの機器には機器外部
に回路の切り替えを行なう操作スイツチが設けら
れていた。しかしこの切り替えは使用者が行なう
ため確実性に欠けるものであつた。Conventional configurations and their problems In general, when induction motors and synchronous motors are used at different frequencies, there are large changes in temperature rise, maximum torque, etc., and it is necessary to switch the windings if you want to use them with the same performance. Furthermore, even in a timer circuit synchronized with the power supply frequency, it is necessary to switch the circuit according to the frequency. Therefore, these devices were provided with an operation switch external to the device to switch the circuit. However, since this switching is performed by the user, it lacks reliability.
発明の目的
本発明は機器内部に組み込まれ、使用する電源
の種類に応じて自動的に回路の切り替えを行なう
継電器を提供することを目的とする。OBJECTS OF THE INVENTION An object of the present invention is to provide a relay that is built into a device and automatically switches circuits depending on the type of power source used.
発明の構成
上記目的を達成するために本発明の継電器は交
流電磁石を用いこの交流電磁石を交流電源の周波
数または電圧の値が変わることによつて生じる吸
引力の差により電気接点を移動させることによ
り、確実に回路の切り替えを行なうものである。Structure of the Invention In order to achieve the above object, the relay of the present invention uses an AC electromagnet and moves the electrical contacts of the AC electromagnet by using the difference in attractive force caused by changing the frequency or voltage value of the AC power source. , which ensures reliable circuit switching.
実施例の説明
以下、図面に基づいて本発明の一実施例につい
て説明する。第１図において、１は使用する交流
電源に接続されたコイルで、磁路鉄心２，３を有
しており、この磁路鉄心３の一部を支点６として
可動鉄片４がバネ５により磁路鉄心２より離れる
方向に付勢されている。また可動鉄片４の磁路鉄
心２側の端部には絶縁体７を介して接点金具８が
取り付けられており、この接点金具８は接点金具
９，１０の間に位置している。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a coil connected to an AC power source to be used, and has magnetic path cores 2 and 3. A movable iron piece 4 is moved around a part of the magnetic path core 3 as a fulcrum 6 by a spring 5. It is biased in a direction away from the road core 2. Further, a contact fitting 8 is attached to the end of the movable iron piece 4 on the magnetic path core 2 side via an insulator 7, and this contact fitting 8 is located between the contact fittings 9 and 10.
第２図は本発明の継電器の作用を説明するグラ
フであり、横軸には磁路鉄心２と可動鉄片４の間
の空隙の距離ｘを、また縦軸には可動鉄片４に働
く力Ｆをとつてあり、力の作用点はすべて可動鉄
片４上の同一地点に換算して表わしている。グラ
フａはバネ５が可動鉄片４を磁路鉄心２から引き
離す力を示し、グラフｂおよびｃは可動鉄片４と
磁路鉄心２の磁気的な吸引力を示しておりｂはコ
イル１に100V−50Hzが給供されている場合、ｃ
は100V−60Hzが給供されている場合である。 FIG. 2 is a graph explaining the action of the relay of the present invention, in which the horizontal axis represents the distance x of the air gap between the magnetic path core 2 and the movable iron piece 4, and the vertical axis represents the force F acting on the movable iron piece 4. The points of application of force are all expressed as the same point on the movable iron piece 4. Graph a shows the force of the spring 5 to separate the movable iron piece 4 from the magnetic path core 2, and graphs b and c show the magnetic attraction force between the movable iron piece 4 and the magnetic path iron core 2. If 50Hz is supplied, c
is when 100V-60Hz is supplied.
交流電磁石の吸引力はコイルに鎖交する磁束が
可動鉄片の位置に無関係に一定であることから空
隙の距離ｘの変化に対して平坦なものとなり、実
際には漏れ磁束の影響からグラフｂ，ｃのような
傾向となる。 The attractive force of an AC electromagnet is flat as the air gap distance x changes because the magnetic flux linking the coil is constant regardless of the position of the movable iron piece.Actually, due to the influence of leakage magnetic flux, graphs b, The trend is as shown in c.
さらにコイル１に給供される電源の電圧の実効
値をＶ（ボルト）、周波数を（ヘルツ）、コイル１
の巻数をＮ（回）、空隙部の断面積をＳ（平方メー
トル）とすれば、可動鉄片４に働く磁気的吸引力
の平均値Ｆ（ニユートン）は、
Ｆ＝V2／（2・N2・Ｓ）×104
であり、これから他の諸量が同一で周波数のみ
60Hzから50Hzに変わつたとすれば吸引力は1.44倍
となる。 Furthermore, the effective value of the voltage of the power supply supplied to coil 1 is V (volt), the frequency is (hertz), and coil 1
If the number of turns is N (turns) and the cross-sectional area of the gap is S (square meter), then the average value F (Newton) of the magnetic attraction force acting on the movable iron piece 4 is F=V 2 / ( 2・N 2・S)×10 4 , and from now on, other quantities are the same, only the frequency
If the frequency changes from 60Hz to 50Hz, the suction power will increase by 1.44 times.
したがつてバネ５の定数設定を適当に行なうこ
とによりグラフａとグラフｂ，ｃが交わるように
すれば50Hz時には空隙距離はx1となり60Hz時に
はx2となる。第１図で空隙距離がx1のとき接点
８と９が接触し、空隙距離がx2のとき接点８と
１０が接触するように接点金具９および１０を配
置することにより、接点金具８，９および１０に
より50，60Hzの切り替えを行なうことができるも
のである。 Therefore, if the constants of the spring 5 are appropriately set so that graphs a and graphs b and c intersect, the air gap distance will be x1 at 50Hz and x2 at 60Hz. By arranging the contact fittings 9 and 10 so that when the gap distance is x1 in FIG. 1, the contacts 8 and 9 are in contact, and when the gap distance is x2, the contacts 8 and 10 are in contact, 10 allows switching between 50 and 60 Hz.
第３図はその一例として電動機１１の50Hz用巻
線イ−ハ間、60Hz用巻線イ−ロ間を本発明の一実
施例である継電器により切り替える場合の接続を
示している。 FIG. 3 shows, as an example, a connection in the case where the 50 Hz winding I and the 60 Hz winding I and the 60 Hz winding E and the lo are switched by a relay according to an embodiment of the present invention.
次に上記構成によるその動作を説明する。電動
機１１に交流電源を投入すると、コイル１を有し
た磁路鉄心２が可動鉄片４を接点金具９側に引き
つけようとする。このとき、交流電源が60Hzであ
れば、支点６を介して可動鉄片４に加えられるバ
ネ５の力が、磁路鉄心２が可動鉄片４を吸引する
力よりも大きく、可動鉄片４の先端に設けられた
接点金具８は接点金具１０に当接した状態とな
り、電動機１１の60Hz用巻線イ−ロ間に交流電源
が印加されることになる。反対に交流電源が50Hz
であれば、バネ５の力より磁路鉄心２が可動鉄片
４を吸引する力が大きくなり可動鉄片４の接点金
具８は接点金具９に当接し、電動機１１の50Hz用
巻線イ−ハ間に交流電源が印加されることにな
る。 Next, the operation of the above configuration will be explained. When AC power is applied to the electric motor 11, the magnetic path iron core 2 having the coil 1 tries to attract the movable iron piece 4 toward the contact fitting 9 side. At this time, if the AC power source is 60Hz, the force of the spring 5 applied to the movable iron piece 4 via the fulcrum 6 is greater than the force with which the magnetic path iron core 2 attracts the movable iron piece 4, and the force at the tip of the movable iron piece 4 is The provided contact fitting 8 comes into contact with the contact fitting 10, and AC power is applied between the 60 Hz windings E and I of the electric motor 11. On the other hand, AC power is 50Hz
If so, the force with which the magnetic path iron core 2 attracts the movable iron piece 4 will be greater than the force of the spring 5, and the contact fitting 8 of the movable iron piece 4 will come into contact with the contact fitting 9, and the 50Hz winding I-H of the motor 11 will be AC power will be applied to.
なお、本実施例では50Hz，60Hzの切り替えにつ
いて説明したが、電源電圧の切り替えについても
応用できることはいうまでもない。 In this embodiment, switching between 50Hz and 60Hz has been described, but it goes without saying that the present invention can also be applied to switching between power supply voltages.
発明の効果
上記実施例の説明から明らかなように本発明の
継電器によれば、電磁石の吸引力の差により電気
接点を切り替えるため、確実に電源に応じた回路
を使用することができ、誤使用がなくなる。Effects of the Invention As is clear from the description of the embodiments described above, according to the relay of the present invention, the electrical contacts are switched by the difference in the attraction force of the electromagnets, so it is possible to reliably use the circuit according to the power supply, and it is possible to use the relay according to the power supply. disappears.
第１図は本発明の一実施例である継電器の側面
図、第２図は同継電器のバネと磁力の関係を示す
グラフ、第３図は同継電器を使用したモーターの
回路図である。
１……コイル、２……磁路鉄心、４……可動鉄
片、５……バネ。
FIG. 1 is a side view of a relay that is an embodiment of the present invention, FIG. 2 is a graph showing the relationship between the spring and magnetic force of the relay, and FIG. 3 is a circuit diagram of a motor using the relay. 1...Coil, 2...Magnetic path iron core, 4...Movable iron piece, 5...Spring.
Claims (1)
化する電源に接続された電磁石と、この電磁石に
近接して設けられ、かつ、回路を切り替えるため
の第１の接点金具を固定した可動鉄片と、この可
動鉄片が前記電磁石に吸引されたとき第１の接点
金具が当接する位置に設けた第２の接点金具と、
前記可動鉄片が前記電磁石から離反するとき第１
の接点金具が当接する位置に設けた第３の接点金
具と、前記可動鉄片を前記電磁石から離す方向に
付勢する弾性体とを有し、前記電源の電圧または
周波数の値が前記電磁石の吸引力を減少させる値
にあるときは前記可動鉄片が前記電磁石から離反
し増加させる値にあるときは前記可動鉄片が前記
電磁石に吸引されるように前記弾性体の力を定め
た継電器。1. An electromagnet connected to a power source whose voltage or frequency value changes between two desired values, and a movable electromagnet that is installed close to this electromagnet and has a fixed first contact fitting for switching the circuit. an iron piece; a second contact fitting provided at a position where the first contact fitting contacts when the movable iron piece is attracted to the electromagnet;
When the movable iron piece separates from the electromagnet, the first
a third contact fitting provided at a position where the contact fitting comes into contact; and an elastic body that biases the movable iron piece in a direction away from the electromagnet, and the voltage or frequency of the power source is set so that the value of the voltage or the frequency of the electromagnet is attracted to the electromagnet. A relay in which the force of the elastic body is determined so that the movable iron piece separates from the electromagnet when the force is decreased, and the movable iron piece is attracted to the electromagnet when the force is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9681984A JPS60241620A (en) | 1984-05-15 | 1984-05-15 | Relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9681984A JPS60241620A (en) | 1984-05-15 | 1984-05-15 | Relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60241620A JPS60241620A (en) | 1985-11-30 |
| JPH027492B2 true JPH027492B2 (en) | 1990-02-19 |
Family
ID=14175184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9681984A Granted JPS60241620A (en) | 1984-05-15 | 1984-05-15 | Relay |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60241620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0321664U (en) * | 1989-06-29 | 1991-03-05 | ||
| JPH0410287U (en) * | 1990-04-27 | 1992-01-29 |
-
1984
- 1984-05-15 JP JP9681984A patent/JPS60241620A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0321664U (en) * | 1989-06-29 | 1991-03-05 | ||
| JPH0410287U (en) * | 1990-04-27 | 1992-01-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60241620A (en) | 1985-11-30 |
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