JPS62296315A - Controller for electromagnetic switch - Google Patents
Controller for electromagnetic switchInfo
- Publication number
- JPS62296315A JPS62296315A JP14072086A JP14072086A JPS62296315A JP S62296315 A JPS62296315 A JP S62296315A JP 14072086 A JP14072086 A JP 14072086A JP 14072086 A JP14072086 A JP 14072086A JP S62296315 A JPS62296315 A JP S62296315A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic switch
- switch
- winding
- windings
- time
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Landscapes
- Relay Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
3、発明の詳細な説明
産業上の利用分野
本発明はモーターやヒーター等の通電を制御する゛1磁
開閉器の制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a control device for a magnetic switch that controls energization of a motor, heater, etc.
従来の技術
近年、電子制御装置の発展にともない負荷への通電制御
が簡単に行えるようになってきた。この通電制御を行う
装置には、′4磁開閉器がある。この電・微開閉器はモ
ーターやヒーター等のパワー装置と、マイクロコンピュ
ータ−(以下マイコンと呼ぶ)等の電子回路部分とを結
合するインターフェイスとして非常に重要である。すな
わち、マイコンが接続されるのは電磁開閉器の看護て、
モーター等が接続されるのは電磁開閉器の電気接点であ
り、これら両者間は磁気結合によりカップリングされ、
モーター等に雷サージ等過大なサージが発生しても、サ
ージに弱いマイコンへサージが流れ込まず、マイコンの
破過防止を図ることができことにより接点をオン・オフ
させるため、長時間巻線に通電をしていると巻線が発熱
し、この巻線の電気抵抗が高くなる。そのため、一度′
4磁開閉器の巻線への通電を断ち接点をオフすると、次
に接点をオンするため巻線に通電を行ってもその接点を
閉じるだけの電流が巻線に流れずオンしない場合がある
。(以下この現象をホットスタートと呼ぶ。)
また、接点の開閉に少なくとも数十ミリアンペアの電流
を巻線に流す必要であり、トライアック等の半導体式の
開閉に必要な数ミリアンペアの電流と比ベエネルギーを
多く必要としていた。BACKGROUND OF THE INVENTION In recent years, with the development of electronic control devices, it has become easier to control energization of loads. A device that performs this energization control is a '4 magnetic switch. This electric/micro switch is very important as an interface that connects power devices such as motors and heaters with electronic circuits such as microcomputers (hereinafter referred to as microcomputers). In other words, the microcomputer is connected to the electromagnetic switch,
The motor etc. are connected to the electrical contacts of the electromagnetic switch, and these two are coupled by magnetic coupling.
Even if an excessive surge such as a lightning surge occurs in a motor, etc., the surge will not flow into the microcomputer, which is vulnerable to surges, and this will prevent the microcomputer from overshooting.This will turn the contacts on and off, making it possible to keep the windings open for long periods of time. When energized, the windings generate heat and their electrical resistance increases. Therefore, once
If you cut off the power to the winding of a 4-magnetic switch and turn off the contact, even if the winding is energized next time to turn on the contact, the current may not flow through the winding to close the contact and the contact may not turn on. . (Hereinafter, this phenomenon will be referred to as hot start.) In addition, it is necessary to send a current of at least several tens of milliamperes through the windings to open and close the contacts, which requires energy compared to the several milliamperes of current required to open and close a semiconductor type such as a triac. needed a lot of.
さらに、7シ磁開閉器の駆動回路が故障した場合、安全
性を確保することができないという問題点を有していた
。Furthermore, there is a problem in that safety cannot be ensured if the drive circuit of the seven-shield magnetic switch breaks down.
本発明は上記問題点にこみ、ホットスタート時も確実に
作動するとともに省電力化、高い安全性を確保すること
を目的とする。The present invention addresses the above-mentioned problems and aims to ensure reliable operation even during hot start, power saving, and high safety.
問題点を解決するための手段
上記問題点を解決するため本発明の電磁開閉器の制御装
置は、巻線への通電を断続して行う制御部を設けた構成
である。Means for Solving the Problems In order to solve the above-mentioned problems, the electromagnetic switch control device of the present invention is provided with a control section that intermittently energizes the windings.
作 用
本発明は上記した構成によって、巻線の発熱がわずかで
ホットスタート時間順がなく、また電力も少なくてすみ
、さらに電子回路(マイコン)が通′4し放しの故障時
には巻線の発熱による電気抵抗の増大により電・破開閉
器の電気濠点をオフして安全性が確保される。Function: Due to the above-described configuration, the present invention generates only a small amount of heat in the windings, there is no hot start time order, and requires less power.Furthermore, in the event of a failure due to the electronic circuit (microcomputer) being left open, the heat generation in the windings is reduced. Safety is ensured by turning off the electric moat point of the electric/breaking switch due to the increase in electrical resistance.
実施例
以下、本発明の一実施例の電磁開閉器の制御装置につい
て、図面を参照しながら説明する。Embodiment Hereinafter, a control device for an electromagnetic switch according to an embodiment of the present invention will be described with reference to the drawings.
第1図において、交流電源1はヒユーズ2およびサージ
アブリーバ3を介して電磁開閉器の電気接点4と制御対
象物であるヒータ5の直列接続体に接読されている。ま
た交流電源1はトランス6にも電力供給しており、トラ
ンス6の2次側には整流器7が接続されている。この整
流器7は電磁開閉器の巻線10にスイッチング素子であ
るトランジスタ12を介して電力供給している。トラン
ジスタ12のオン・オフ制御は制御部であるマイコン1
1により行われている。マイコン11の入力側にはスイ
ッチ8を介して整流器7の直流電圧が印加される。巻線
10と並列にダイオード9、コンデンサ13が接続され
ている。In FIG. 1, an AC power source 1 is connected via a fuse 2 and a surge breaker 3 to a series connection of an electrical contact 4 of an electromagnetic switch and a heater 5, which is an object to be controlled. The AC power supply 1 also supplies power to a transformer 6, and a rectifier 7 is connected to the secondary side of the transformer 6. This rectifier 7 supplies power to the winding 10 of the electromagnetic switch via a transistor 12 which is a switching element. The on/off control of the transistor 12 is performed by the microcomputer 1, which is a control section.
1. The DC voltage of the rectifier 7 is applied to the input side of the microcomputer 11 via the switch 8 . A diode 9 and a capacitor 13 are connected in parallel with the winding 10.
以上のように構成された電磁開閉器の制御装置について
その動作を説明する。スイッチ8をオンするとマイコン
11が作動し、トランジスタ12を介して電磁開閉器の
巻線10に第2図に示す電流を流す。すなわち、始動時
にはオン時間が長く(約1秒)、その後1/4のデユー
ティ比で流す。The operation of the electromagnetic switch control device configured as described above will be explained. When the switch 8 is turned on, the microcomputer 11 is activated, causing a current shown in FIG. 2 to flow through the winding 10 of the electromagnetic switch via the transistor 12. That is, at the time of starting, the ON time is long (about 1 second), and then the duty ratio is 1/4.
これは、届磁開閉盟の巻線からなる固定鉄片と電気接点
部の可動鉄片との間には、その距離が長いほどその可動
公序を駆動させるためには多くの磁力を要し、距離が短
かければ少なくて済むため、電磁開閉器の始動時にはそ
の距離が長いので大きな電流を巻線に流し、一度オンす
れば前述の距離は短かくなり少ない環流でオンは保持さ
れる。また速い周期(例えば80Hz)で発振を行なっ
ているので一度オンすればわずかな時間電流がなくても
上記可動鉄片は動作速度が追いつかず発振回路で43動
させても憇イd開閉器の電気接点4はオフせずリレー5
の通tαは保たれる。This is because the longer the distance between the fixed iron piece consisting of the winding of the magnetic switching element and the movable iron piece of the electric contact part, the more magnetic force is required to drive the movable element. The shorter the distance, the less is needed, so when starting the electromagnetic switch, a large current is passed through the winding due to its long distance, and once it is turned on, the aforementioned distance is shortened and the on state is maintained with less circulation. Also, since it oscillates at a fast frequency (e.g. 80Hz), once it is turned on, even if there is no current for a short period of time, the movable iron piece cannot keep up with the operating speed, and even if it is operated by the oscillation circuit, the electricity of the switch remains unchanged. Contact 4 does not turn off and relay 5
tα is maintained.
以上のように、′μシ磁開開閉器始動後は少ない?l流
でオンが保持されるので、電磁開閉器の巻線10の温度
上昇は少なく電気抵抗も高くならないのでホットスター
ト時も確実に動作させることができる。また、デユーテ
ィ比が1/4で通電するので少ない電流ですみ省電力化
がはかられる。さらに万一マイコン11が故障し通電し
放しとなったときは電磁開閉器の巻線10には通常の4
倍の電流が流れ、温間上昇による電気抵抗の増大により
巻線に電流が流れなくなり電磁開閉器は自動的にオフし
ヒータの通電は停止され、安全性を向上できる。As mentioned above, after starting the ′μ magnetic switch, there is little? Since the on state is maintained with a current of 1, the temperature rise in the winding 10 of the electromagnetic switch is small and the electrical resistance does not become high, so that it can be operated reliably even during a hot start. In addition, since electricity is supplied with a duty ratio of 1/4, a small amount of current is required, resulting in power saving. Furthermore, in the unlikely event that the microcomputer 11 fails and is left unenergized, the winding 10 of the electromagnetic switch
The current flows twice as much, and due to the increase in electrical resistance due to the warm rise, no current flows through the windings, and the electromagnetic switch is automatically turned off, stopping power supply to the heater, improving safety.
発明の効果
以上のように本発明によれば、ホットスタート時も確実
に動作させることができるばかりでなく、省エネ化がは
かられ、さらに安全性も高めることができる。Effects of the Invention As described above, according to the present invention, it is possible not only to operate the device reliably even during a hot start, but also to save energy and further improve safety.
【図面の簡単な説明】
第1図は本発明の一実施例を示す電磁詫閉器の制御値は
の回路図、第2図は同巻;尿電流の波形図である。
4・・・・・・電磁開閉器の電気接点、5・・・・・・
ヒータ、10・・・・・・電磁開閉器の巻線。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of control values of an electromagnetic oscillator according to an embodiment of the present invention, and FIG. 2 is a waveform diagram of urine current in the same volume. 4...Electric contact of electromagnetic switch, 5...
Heater, 10...Winding of electromagnetic switch.
Claims (2)
点を開閉する電磁開閉器と、この電磁開閉器の電気接点
オン時に、巻線へ断続通電を行う制御部を備えた電磁開
閉器の制御装置。(1) An electromagnetic switch that generates magnetic force by energizing the windings to open and close electrical contacts, and an electromagnetic switch that includes a control unit that energizes the windings intermittently when the electrical contacts of the electromagnetic switch are turned on. control device.
間の周期で通電を行い、その後は、通電する割合を始動
時より少なくした周期で行なう特許請求の範囲第1項記
載の電磁開閉器の制御装置。(2) The control unit energizes the winding of the electromagnetic switch at a certain period of time at the time of starting, and thereafter energizes the winding at a frequency that is smaller than at the time of starting. Switch control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14072086A JPS62296315A (en) | 1986-06-17 | 1986-06-17 | Controller for electromagnetic switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14072086A JPS62296315A (en) | 1986-06-17 | 1986-06-17 | Controller for electromagnetic switch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62296315A true JPS62296315A (en) | 1987-12-23 |
Family
ID=15275138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14072086A Pending JPS62296315A (en) | 1986-06-17 | 1986-06-17 | Controller for electromagnetic switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62296315A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54131769A (en) * | 1978-04-04 | 1979-10-13 | Ricoh Kk | Driving circuit for electromagnetic coil |
JPS54158660A (en) * | 1978-06-05 | 1979-12-14 | Pioneer Electronic Corp | Solenoid drive circuit |
JPS5645534A (en) * | 1979-09-19 | 1981-04-25 | Hitachi Ltd | Load drive system |
JPS60906B2 (en) * | 1980-09-30 | 1985-01-10 | ダイヤテックス株式会社 | Liner for cardboard |
-
1986
- 1986-06-17 JP JP14072086A patent/JPS62296315A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54131769A (en) * | 1978-04-04 | 1979-10-13 | Ricoh Kk | Driving circuit for electromagnetic coil |
JPS54158660A (en) * | 1978-06-05 | 1979-12-14 | Pioneer Electronic Corp | Solenoid drive circuit |
JPS5645534A (en) * | 1979-09-19 | 1981-04-25 | Hitachi Ltd | Load drive system |
JPS60906B2 (en) * | 1980-09-30 | 1985-01-10 | ダイヤテックス株式会社 | Liner for cardboard |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6694264B2 (en) | Inverter protection circuit and inverter system | |
US4560913A (en) | Sparkless circuit for low horsepower electronic motor brake | |
CN108683374B (en) | Excitation shaft generator system start-stop logic control circuit and excitation shaft generator system | |
JPS62296315A (en) | Controller for electromagnetic switch | |
US20110095710A1 (en) | Method for controlling an electric disconnecting switch motor | |
WO2022077974A1 (en) | Circuit system, control method of circuit system, controller and storage medium | |
JP3099256B2 (en) | Drive device for brushless motor | |
JP3309821B2 (en) | Cooking device | |
JPH07308087A (en) | Braking circuit for motor | |
CN114257159B (en) | Power conversion system, open overwrite circuit and method | |
KR100347103B1 (en) | Relay Protection Method used Triac | |
JPH0743027A (en) | Compressor driving control device | |
KR830005749A (en) | AC motor controller | |
KR100331835B1 (en) | Method and apparatus for driving heater of micro wave oven | |
JPS59861Y2 (en) | Control method using AC alternating waves | |
JPH01136593A (en) | Rush current preventive circuit for motor controller | |
JPH0327314Y2 (en) | ||
JP2003174778A (en) | Relay failure to operate detection circuit and motor controller provided therewith | |
KR0111180Y1 (en) | Short stabilization circuit of semiconductor device for power control | |
JPH0715352Y2 (en) | Inverter device | |
SU957389A1 (en) | Asynchronous electric motor start-up device | |
JPH02211083A (en) | Protecting circuit system for motor controller | |
JP4982221B2 (en) | Electrical equipment | |
JPS61142963A (en) | Power source | |
JPH0213439B2 (en) |