JPH0130769Y2 - - Google Patents
Info
- Publication number
- JPH0130769Y2 JPH0130769Y2 JP1982155987U JP15598782U JPH0130769Y2 JP H0130769 Y2 JPH0130769 Y2 JP H0130769Y2 JP 1982155987 U JP1982155987 U JP 1982155987U JP 15598782 U JP15598782 U JP 15598782U JP H0130769 Y2 JPH0130769 Y2 JP H0130769Y2
- Authority
- JP
- Japan
- Prior art keywords
- electromagnet
- mounting base
- movable part
- coil
- changeover switch
- 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
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Electromagnets (AREA)
- Slide Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Toys (AREA)
Description
【考案の詳細な説明】
この考案は、電動機などの電路を開閉制御する
電磁接触器の構造の改良に関するものである。[Detailed Description of the Invention] This invention relates to an improvement in the structure of an electromagnetic contactor that controls opening and closing of an electric circuit such as an electric motor.
従来、一般に交流電圧で励磁する電磁石は、磁
束が貫通する鉄心より振動、騒音を発生するた
め、交流電圧をダイオード等により整流して操作
コイルを励磁しているが、上記電磁石の駆動を制
御する部品を多数有し、かつ電磁接触器自体の投
入衝撃から上記各部品を保護するために、各部品
をエポキシ樹脂等の注入によつて強固に被覆固定
する必要があるが、従来は、上記の各部品が別部
材に各別に組込まれていたため、これらの製作コ
ストが極めて大きいという問題点があつた。 Conventionally, electromagnets that are excited by AC voltage generally generate vibrations and noise from the iron core through which the magnetic flux passes, so the AC voltage is rectified by a diode or the like to excite the operating coil. In order to protect the above-mentioned parts from the impact of the electromagnetic contactor itself due to the large number of parts, it is necessary to cover and fix each part firmly by injecting epoxy resin, etc., but conventionally, the above-mentioned Since each component was individually assembled into a separate member, there was a problem in that the manufacturing cost was extremely high.
この考案は、上記の問題点を解決するもので、
上記各部品を箱状の取付台に収納することによつ
て樹脂注入型を安価に製作できる構造を提供しよ
うとするものである。 This idea solves the above problems,
The present invention aims to provide a structure in which a resin injection mold can be manufactured at low cost by housing each of the above-mentioned parts in a box-shaped mounting base.
以下、この考案の一実施例を第１図ないし第６
図によつて説明する。 An embodiment of this invention is shown below in Figures 1 to 6.
This will be explained using figures.
まず、第１図により電磁石の回路について説明
すると、回路部品は、バリスタ１、切替スイツチ
２、抵抗３、コンデンサ４、ダイオード５、操作
コイル６より構成されている。上記切替スイツチ
２は、電磁接触器７（第２図）の主接点が開路の
場合は閉路し、また上記主接点が閉路の場合は開
路している。コンデンサ４と抵抗３は、直列接続
されるとともに、上記切替スイツチ２に並列に接
続されている。ダイオード５は、交流電圧ACを
全波整流して、その直流出力端に操作コイル６を
接続している。バリスタ１は、外来サージの侵入
を防止するため交流側に接続してある。 First, the electromagnet circuit will be explained with reference to FIG. 1. The circuit components are composed of a varistor 1, a changeover switch 2, a resistor 3, a capacitor 4, a diode 5, and an operating coil 6. The changeover switch 2 is closed when the main contact of the electromagnetic contactor 7 (FIG. 2) is open, and is open when the main contact is closed. The capacitor 4 and the resistor 3 are connected in series and in parallel to the changeover switch 2. The diode 5 performs full-wave rectification of the alternating current voltage AC, and the operating coil 6 is connected to its direct current output end. The varistor 1 is connected to the alternating current side to prevent invasion of external surges.
以上の構成において、交流電圧を印加すると、
最初は切替スイツチ２が閉路しているので、操作
コイル６には、交流電圧を全波整流しただけの全
電圧が印加され、電磁接触器７の可動部が電磁力
により駆動されて主接点が閉路すると同時に、上
記切替スイツチ２は開路する。切換スイツチ２が
開路すると、交流電圧はコンデンサ４を介してダ
イオード５に加わる。操作コイル６には、コンデ
ンサ４で電圧降下した交流電圧が加わるので、投
入時に較べて弱い電磁力で可動部を保持し、操作
コイル６の消費電力は小さなものとなる。交流電
圧を直接操作コイルに印加する電磁石にあつて
は、投入時と保持時のリアクタンスの変化によつ
て操作コイルの起磁力と消費電力は変化するが、
直流励磁の場合においては、前述のように、操作
コイルに印加される電圧を切替スイツチ等によつ
て変化させる必要がある。 In the above configuration, when an AC voltage is applied,
Initially, the changeover switch 2 is closed, so the full voltage of full-wave rectification of the AC voltage is applied to the operating coil 6, and the movable part of the electromagnetic contactor 7 is driven by electromagnetic force, causing the main contact to close. At the same time as the circuit is closed, the changeover switch 2 is opened. When the changeover switch 2 is opened, an alternating current voltage is applied to the diode 5 via the capacitor 4. Since the AC voltage dropped by the capacitor 4 is applied to the operating coil 6, the movable part is held by a weaker electromagnetic force than when it is turned on, and the power consumption of the operating coil 6 becomes small. In the case of electromagnets that apply AC voltage directly to the operating coil, the magnetomotive force and power consumption of the operating coil change due to changes in reactance during turning on and holding.
In the case of DC excitation, as mentioned above, it is necessary to change the voltage applied to the operating coil using a changeover switch or the like.
つぎに、交流電圧を消去すると、前記可動部が
元に復帰すると同時に切替スイツチ２が閉路し、
コンデンサ４に残留する電荷を、抵抗３を介して
切替スイツチ２に放電して、切替スイツチ２の接
点表面に生成された電気絶縁物を電気的に除去す
る。なお、抵抗３は、接点が溶着しないように上
記放電電流の値を制限する。 Next, when the AC voltage is erased, the movable part returns to its original state and at the same time the changeover switch 2 closes.
The electric charge remaining in the capacitor 4 is discharged to the changeover switch 2 through the resistor 3, and the electrical insulation generated on the contact surface of the changeover switch 2 is electrically removed. Note that the resistor 3 limits the value of the discharge current so that the contacts do not weld.
つぎに、構成を第２図ないし第６図により説明
する。 Next, the configuration will be explained with reference to FIGS. 2 to 6.
主接点は、可動接触子８と固定接触子９とで構
成され、可動接触子８は、押ばね１０で押圧され
てクロスバー１１に保持されている。クロスバー
１１は、磁路を形成する畧字形の可動鉄心１２
をピン１３で連結するとともに、ベース１４に摺
動自在に組込んである。上記可動鉄心１２と対向
して断面畧々台形の棒状固定鉄心１５を設け、こ
の両端に挿入した固定鉄心受け１６を、ねじ１７
で固定したベース１４と取付台１８で挾持して固
定している。取付台１８の底部には固定緩衝ゴム
１９を設けて固定鉄心１５を押圧している。 The main contact is composed of a movable contact 8 and a fixed contact 9, and the movable contact 8 is held by a crossbar 11 while being pressed by a pressure spring 10. The crossbar 11 has a ridge-shaped movable iron core 12 that forms a magnetic path.
are connected by pins 13 and are slidably incorporated into a base 14. A rod-shaped fixed core 15 having a trapezoidal cross section is provided facing the movable core 12, and fixed core receivers 16 inserted into both ends of the core are fixed with screws 17.
It is clamped and fixed between the base 14 and the mounting base 18 which are fixed together. A fixed buffer rubber 19 is provided at the bottom of the mounting base 18 to press the fixed iron core 15.
操作コイル６は、コイルスプール２１、巻線２
２、コイルリード２３より構成され、巻線２２
は、コイルスプール２１に撚回したのち、このコ
イルスプール２１に設けた溝２４を通して導電性
のコイルリード２３の突起２５に接続してある。
上記溝２４は、可動鉄心１２と干渉しないよう
に、固定鉄心１５下方のコイルスプール２１のつ
ば２６に設けてある。上記コイルリード２３に
は、突起２７が形成されて、コイルスプール２１
に設けた穴２８に挿入固定され、また端子突起２
９を、つば２６に沿つてベース側に突出させて、
操作コイル６の巻線抵抗測定端子として利用でき
るようにしてある。 The operating coil 6 has a coil spool 21 and a winding 2.
2. Consists of coil lead 23, winding 22
is twisted around a coil spool 21 and then connected to a protrusion 25 of a conductive coil lead 23 through a groove 24 provided in the coil spool 21.
The groove 24 is provided in the collar 26 of the coil spool 21 below the fixed core 15 so as not to interfere with the movable core 12. A protrusion 27 is formed on the coil lead 23, and a protrusion 27 is formed on the coil spool 21.
It is inserted and fixed into the hole 28 provided in the terminal protrusion 2.
9 to protrude toward the base side along the collar 26,
It can be used as a terminal for measuring the winding resistance of the operating coil 6.
以上のように構成された操作コイル６は、プリ
ント基板３０に、コイルリード２３の突起２７に
よつて接続するとともに、固定鉄心１５に貫通す
るように配設してある。プリント基板３０には、
上記操作コイル６のほかに、操作コイル６の制御
に使用する部品であるバリスタ１、切替スイツチ
２、抵抗３、コンデンサ４、ダイオード５および
交流電圧を印加するためのコイル端子３１を塔載
してある。このプリント基板組立体３２は、箱状
に形成した取付台１８の内部に組込むとともに、
切替スイツチ２には、めねじ３３（第４図）を設
け、プリント基板３０を介してねじ３４により取
付台１８に締結して切替スイツチ２の位置を規制
している。 The operating coil 6 configured as described above is connected to the printed circuit board 30 by the protrusion 27 of the coil lead 23 and is disposed so as to penetrate the fixed iron core 15. The printed circuit board 30 includes
In addition to the operating coil 6, there are mounted a varistor 1, a changeover switch 2, a resistor 3, a capacitor 4, a diode 5, and a coil terminal 31 for applying an alternating voltage, which are parts used to control the operating coil 6. be. This printed circuit board assembly 32 is assembled inside the box-shaped mounting base 18, and
The changeover switch 2 is provided with a female thread 33 (FIG. 4) and is fastened to the mounting base 18 with a screw 34 via a printed circuit board 30 to regulate the position of the changeover switch 2.
さらに、コイルスプール２１のつば２６の両側
面に突起３５を設け、この突起３５には切欠き３
６を設けて、取付台１８に形成しためねじ３７
（第４図）にねじ３８で締結し、重量の大きい操
作コイル６を取付台１８に固定している。コイル
端子３１は、取付台１８に圧入された中継端子３
９に、コイル端子ねじ４０により共締めして、電
磁石への外部電源の接続を可能にしている。 Further, a protrusion 35 is provided on both sides of the collar 26 of the coil spool 21, and the protrusion 35 has a notch 3.
6 and formed on the mounting base 18 with an internal thread 37
(FIG. 4) is fastened with screws 38 to fix the heavy operating coil 6 to the mounting base 18. The coil terminal 31 is a relay terminal 3 that is press-fitted into the mounting base 18.
9, they are fastened together with coil terminal screws 40 to enable connection of an external power source to the electromagnet.
以上のように、取付台１８に固定したプリント
基板組立体３２塔載の各部品を電磁接触器７自体
の投入衝撃から保護するため、箱状に形成した取
付台１８に、エポキシ樹脂４１を注入する。な
お、ねじ３４が貫通する取付台１８からエポキシ
樹脂４１がもれないことを本考案者は実験により
確認している。 As described above, in order to protect each component mounted on the printed circuit board assembly 32 fixed to the mounting base 18 from the impact of the electromagnetic contactor 7 itself, the epoxy resin 41 is injected into the box-shaped mounting base 18. do. The present inventor has confirmed through experiments that the epoxy resin 41 does not leak from the mounting base 18 through which the screw 34 passes.
以上説明したとおり、この考案は、電磁接触器
の電磁石の操作コイルを、ダイオード等で整流し
た交流電圧で励磁するとともに、上記電磁石の投
入時において切換スイツチ等により回路定数を変
化させることにより操作コイルに印加する電圧を
降下させる電磁石駆動装置を付設し、上記電磁石
の操作コイル、ダイオード、切替スイツチ等の各
部品を、共に取付台の箱状の内部に組込み収納
し、樹脂をその内部に注入して上記各部品を固定
するように構成したため、これら各部品は従来形
のように別部材または別箱体内に各別に組込む必
要がなく、このため、スペースフアクタが向上し
て極めてコンパクト化されるとともに、樹脂の注
入固定も容易となり、この構造を安価に製作でき
る効果を有する。 As explained above, this invention excites the operating coil of the electromagnet of the electromagnetic contactor with an alternating current voltage rectified by a diode, etc., and changes the circuit constant using a changeover switch etc. when the electromagnet is turned on. An electromagnet drive device is attached to reduce the voltage applied to the electromagnet, and the operating coil, diode, changeover switch, and other parts of the electromagnet are assembled and stored inside the box-shaped mounting base, and resin is injected into the inside. Since the above-mentioned parts are fixed in place, there is no need for each of these parts to be individually assembled into a separate member or separate box body as in the conventional type, which improves the space factor and makes it extremely compact. At the same time, injection and fixation of the resin becomes easy, and this structure can be manufactured at low cost.
第１図ないし第６図は、本考案の一実施例を示
す図で、第１図は、電磁接触器の電磁石の回路
図、第２図は、電磁接触器の一部断面を示す平面
図、第３図および第４図は、それぞれ第２図の
−線および−線断面図、第５図は、電磁接
触器の電磁石部分の分解斜視図、第６図は、第５
図の−線矢視の斜視図である。
２……切替スイツチ、５……ダイオード、６…
…操作コイル、７……電磁接触器、８，９……接
触子、１４……ベース、１５……固定鉄心、１８
……取付台、４１……樹脂。
1 to 6 are diagrams showing one embodiment of the present invention, FIG. 1 is a circuit diagram of an electromagnet of an electromagnetic contactor, and FIG. 2 is a plan view showing a partial cross section of the electromagnetic contactor. , FIGS. 3 and 4 are sectional views taken along lines - and -, respectively, in FIG. 2, FIG. 5 is an exploded perspective view of the electromagnetic portion of the electromagnetic contactor, and FIG.
FIG. 2... Selector switch, 5... Diode, 6...
...Operating coil, 7...Magnetic contactor, 8, 9...Contactor, 14...Base, 15...Fixed core, 18
...Mounting base, 41...Resin.
Claims (1)
自在に組込んだベースと、該可動部を駆動するた
めの固定鉄心を含む電磁石を組込んだ取付台とを
備え、前記ベースと取付台とを固定して外枠を形
成する電磁接触器であつて、上記電磁石の励磁に
より前記可動部が直線状に摺動するよう構成し、
該電磁石が、前記可動部を投入する際に磁束を発
生するための操作コイルを、ダイオード等で整流
した交流電圧で励磁するとともに、前記投入時に
おいて切替スイツチ等により回路定数を変化させ
ることにより操作コイルに印加する電圧を降下さ
せるための電磁石駆動装置を付設し、前記電磁石
の操作コイル、ダイオード、切替スイツチ等の各
部品を、前記取付台の箱状の内部に組込んで、樹
脂をその内部に注入し、前記各部品を固定させた
ことを特徴とする電磁接触器。 A base that slidably incorporates a movable part that supports a contact that switches on and off an electric current, and a mounting base that incorporates an electromagnet that includes a fixed core for driving the movable part, the base and the mounting base. An electromagnetic contactor is configured such that the movable part slides linearly by excitation of the electromagnet,
The electromagnet excites an operating coil for generating magnetic flux when the movable part is turned on with an alternating current voltage rectified by a diode, etc., and is operated by changing a circuit constant using a changeover switch or the like when the movable part is turned on. An electromagnet drive device is attached to reduce the voltage applied to the coil, and the operating coil, diode, changeover switch, and other parts of the electromagnet are assembled into the box-shaped interior of the mounting base, and the resin is inserted into the box-shaped interior of the mounting base. An electromagnetic contactor characterized in that the above-mentioned parts are fixed by injecting into the electromagnetic contactor.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15598782U JPS5959447U (en) | 1982-10-15 | 1982-10-15 | electromagnetic contactor |
| EP83903210A EP0122291B1 (en) | 1982-10-15 | 1983-10-14 | Electromagnetic contactor |
| DE8383903210T DE3382558D1 (en) | 1982-10-15 | 1983-10-14 | ELECTROMAGNETIC CONTACTS. |
| PCT/JP1983/000346 WO1984001661A1 (en) | 1982-10-15 | 1983-10-14 | Electromagnetic contactor |
| US06/608,696 US4654744A (en) | 1982-10-15 | 1983-10-14 | Electromagnetic contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15598782U JPS5959447U (en) | 1982-10-15 | 1982-10-15 | electromagnetic contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5959447U JPS5959447U (en) | 1984-04-18 |
| JPH0130769Y2 true JPH0130769Y2 (en) | 1989-09-20 |
Family
ID=30344332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15598782U Granted JPS5959447U (en) | 1982-10-15 | 1982-10-15 | electromagnetic contactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5959447U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593625A (en) * | 1979-01-02 | 1980-07-16 | Westinghouse Electric Corp | Electromagnetic contactor |
-
1982
- 1982-10-15 JP JP15598782U patent/JPS5959447U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593625A (en) * | 1979-01-02 | 1980-07-16 | Westinghouse Electric Corp | Electromagnetic contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5959447U (en) | 1984-04-18 |
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