JPS6114752B2 - - Google Patents
Info
- Publication number
- JPS6114752B2 JPS6114752B2 JP10748580A JP10748580A JPS6114752B2 JP S6114752 B2 JPS6114752 B2 JP S6114752B2 JP 10748580 A JP10748580 A JP 10748580A JP 10748580 A JP10748580 A JP 10748580A JP S6114752 B2 JPS6114752 B2 JP S6114752B2
- Authority
- JP
- Japan
- Prior art keywords
- contact piece
- bimetal
- capacitor
- motor
- phase induction
- 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
- 239000003990 capacitor Substances 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 description 9
- 244000145845 chattering Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
- H02P1/44—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor by phase-splitting with a capacitor
Description
【発明の詳細な説明】
本発明は起動後に起動用コンデンサから運転用
コンデンサに切換えるようにした単相誘導電動機
の運転装置に関し、その目的は、従来よりこの種
の運転装置にあつては構造的に複雑な遠心スイツ
チや高価な電磁リレーを用いていたところから装
置全体が高価になり勝ちでしかも耐久性も不足し
ていた点に鑑み、自己発熱形バイメタルスイツチ
を設けることにより安価で且つ耐久性に優れた単
相誘導電動機の運転装置を提供するにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a single-phase induction motor operating device that switches from a starting capacitor to a running capacitor after startup. However, since the use of complicated centrifugal switches and expensive electromagnetic relays made the entire device expensive and lacked durability, we developed a self-heating bimetallic switch that was both inexpensive and durable. The purpose of the present invention is to provide an excellent single-phase induction motor operating device.
以下本発明の一実施例につき図面を参照して説
明する。１は例えば冷蔵庫のコンプレツサを駆動
する単相誘導電動機で、これは主巻線２とこの主
巻線２から所定の電気角を隔てて配置した補強巻
線３を有する。４はこの単相誘導電動機１の運転
装置で、これは起動用コンデンサ５、運転用コン
デンサ６及び可動接片としてバイメタル接片７を
有した自己発熱形バイメタルスイツチ８を具備し
て成り、この自己発熱形バイメタルスイツチ８の
バイメタル接片７が冷却時に接触する側の固定接
片ａに起動用コンデンサ５の一方の端子を接続
し、且つバイメタル接片７が自己発熱に伴う変形
により接触する側の固定接片ｂに運転用コンデン
サ６の一方の端子を接続している。そして、両コ
ンデンサ５，６の他方の端子は共に前記単相誘導
電動機１の補助巻線３の一方の端子３ａに接続さ
れ、またバイメタル接片７は前記主巻線２の一方
の端子２ａから導出した導線９と共に、単相交流
電源１０から冷蔵庫内の温度検知用のコントロー
ルスイツチ１１を介して延長された一方の電源母
線１２に接続されている。一方、単相誘導電動機
１の主巻線２及び補助巻線３の他方の各端子は互
いに接続され、その共通接続点から導出した導線
１３を過負荷時における異常電流を検出して回路
を遮断する過負荷保護リレー１４を介して前記単
相交流電源１０の他方の電源母線１５に接続して
いる。 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a single-phase induction motor that drives, for example, a refrigerator compressor, and has a main winding 2 and a reinforcing winding 3 arranged at a predetermined electrical angle from the main winding 2. Reference numeral 4 denotes an operating device for this single-phase induction motor 1, which comprises a starting capacitor 5, an operating capacitor 6, and a self-heating bimetal switch 8 having a bimetal contact piece 7 as a movable contact piece. One terminal of the starting capacitor 5 is connected to the fixed contact piece a on the side where the bimetal contact piece 7 of the heat-generating bimetal switch 8 contacts during cooling, and the bimetal contact piece 7 contacts on the side due to deformation due to self-heating. One terminal of the operating capacitor 6 is connected to the fixed contact piece b. The other terminals of both capacitors 5 and 6 are both connected to one terminal 3a of the auxiliary winding 3 of the single-phase induction motor 1, and the bimetal contact piece 7 is connected to one terminal 2a of the main winding 2. Together with the lead wire 9, it is connected to one power supply bus 12 extending from a single-phase AC power supply 10 via a control switch 11 for detecting temperature inside the refrigerator. On the other hand, the other terminals of the main winding 2 and the auxiliary winding 3 of the single-phase induction motor 1 are connected to each other, and a conductor 13 led out from the common connection point is used to detect abnormal current during overload and interrupt the circuit. It is connected to the other power supply bus 15 of the single-phase AC power supply 10 via an overload protection relay 14 .
而して、上記構成によれば、コントロールスイ
ツチ１１が閉成して電源が投入されると、起動時
にはバイメタル接片７は冷却しているため固定接
片ａ側に接触しており、補助巻線３にはバイメタ
ル接片７および起動用コンデンサ５を介して通電
される。通電が始まると、バイメタル接片７は自
身を流れる電流により発熱して次第に高温とな
り、単相誘導電動機１の回転速度が例えば同期速
度の70〜80％となるような所定時間後に固定接片
ｂに接触するよう変形し、これにより補助巻線３
にはバイメタル接片７及び運転用コンデンサ６を
介して通電されるようになり、バイメタル接片７
は自身を流れる電流によつて発熱し続けてこの状
態を自己保持する。この際、バイメタル接片７は
熱膨張に伴う自身の変形力により切換わるため、
切換えに伴い接点が短時間振動するようにして接
離する所謂チヤタリング現象は、ばねを用いた従
来の遠心スイツチや電磁リレー等とは異なり本来
的に起り難く、従つて接点の耐久性を飛躍的に高
めることができる。また、この状態でコントロー
ルスイツチ１１が開放すると、バイメタル接片７
は電流が流れなくなるため冷却して固定接片ａに
接触する状態に復元する。 According to the above configuration, when the control switch 11 is closed and the power is turned on, the bimetal contact piece 7 is in contact with the fixed contact piece a side since it is cooled at the time of startup, and the auxiliary winding is turned on. The line 3 is energized via a bimetal contact piece 7 and a starting capacitor 5. When energization starts, the bimetal contact piece 7 generates heat due to the current flowing through itself and gradually reaches a high temperature, and after a predetermined time when the rotational speed of the single-phase induction motor 1 reaches, for example, 70 to 80% of the synchronous speed, the fixed contact piece b The auxiliary winding 3
is now energized via the bimetal contact piece 7 and the operating capacitor 6, and the bimetal contact piece 7
continues to generate heat due to the current flowing through it and maintains this state. At this time, since the bimetal contact piece 7 is switched by its own deformation force due to thermal expansion,
Unlike conventional centrifugal switches and electromagnetic relays that use springs, the so-called chattering phenomenon, in which the contacts vibrate for a short period of time as they move toward and away from each other, is inherently difficult to occur. can be increased to Furthermore, when the control switch 11 is opened in this state, the bimetal contact piece 7
Since no current flows through the contact piece a, it cools down and returns to the state in which it contacts the fixed contact piece a.
本発明は以上述べたように、バイメタル接片を
有した自己発熱形バイメタルスイツチにより起動
用コンデンサと運転用コンデンサとを切換えるよ
うにしたところに特徴を有するものであつて、こ
の結果、自己発熱形バイメタルスイツチがバイメ
タルを加熱する傍熱ヒータさえも必要とせずバイ
メタル接片と固定接片とにより構成できて構造が
簡単であるところから従来のように構造が複雑で
高価な遠心スイツチや電磁リレーを用いたものに
比べて安価に製作でき、しかも構造が簡単な上バ
イメタルスイツチの本来的な特性としてチヤタリ
ング現象が発生せず接点の寿命が長いところか
ら、総じて装置全体の耐久性を大きく向上させる
ことができる等の効果を奏する単相誘導電動機の
運転装置を提供し得る。 As described above, the present invention is characterized in that the starting capacitor and the operating capacitor are switched by a self-heating type bimetal switch having a bimetal contact piece. The bimetal switch does not even require an indirect heater to heat the bimetal, and can be constructed from a bimetal contact piece and a fixed contact piece, and has a simple structure, which makes it possible to replace conventional centrifugal switches and electromagnetic relays, which have complicated and expensive structures. Bimetal switches can be produced at a lower cost and have a simpler structure than conventional switches, and the inherent characteristics of bimetal switches are that they do not cause chattering and have a long contact life, which greatly improves the durability of the entire device. It is possible to provide an operating device for a single-phase induction motor that achieves the following effects.
図面は本発明の一実施例を示す結線図である。
図中、１は単相誘導電動機、５は起動用コンデ
ンサ、６は運転用コンデンサ、７はバイメタル接
片、８は自己発熱形バイメタルスイツチである。
The drawing is a wiring diagram showing one embodiment of the present invention. In the figure, 1 is a single-phase induction motor, 5 is a starting capacitor, 6 is a running capacitor, 7 is a bimetal contact piece, and 8 is a self-heating bimetal switch.
Claims (1)
電動機に通電し、起動後運転用コンデンサを介し
て前記電動機に通電するよう切換えるものにおい
て、バイメタル接片を有した自己発熱形バイメタ
ルスイツチを設け、電源投入による前記電動機の
起動時には前記バイメタル接片が前記起動用コン
デンサを介する前記電動機への通電路を形成し、
起動後に前記バイメタル接片が自己発熱に伴う変
形により前記運転用コンデンサを介して前記電動
機への通電路を形成するよう切換わることを特徴
とする単相誘導電動機の運転装置。1. In a device that energizes a single-phase induction motor through a starting capacitor at startup, and then switches to energize the motor through an operating capacitor after startup, a self-heating bimetal switch with a bimetal contact piece is provided, and the power source is When the motor is started by turning on, the bimetallic contact piece forms a current conducting path to the motor via the starting capacitor,
An operating device for a single-phase induction motor, characterized in that, after startup, the bimetal contact piece is deformed due to self-heating and is switched to form an energizing path to the motor via the operating capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10748580A JPS5734781A (en) | 1980-08-04 | 1980-08-04 | Operating device for single-phase induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10748580A JPS5734781A (en) | 1980-08-04 | 1980-08-04 | Operating device for single-phase induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5734781A JPS5734781A (en) | 1982-02-25 |
| JPS6114752B2 true JPS6114752B2 (en) | 1986-04-21 |
Family
ID=14460405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10748580A Granted JPS5734781A (en) | 1980-08-04 | 1980-08-04 | Operating device for single-phase induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5734781A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5643852A (en) * | 1993-01-13 | 1997-07-01 | North Carolina State University | Fungicidal compositions for the enhancement of turf quality |
| US5599804A (en) | 1995-04-03 | 1997-02-04 | Rhone-Poulenc, Inc. | Fungicidal compositions for the enhancement of turf quality |
| US8748345B2 (en) | 2007-05-10 | 2014-06-10 | Tessenderlo Kerley Inc. | Method and composition for improving turfgrass |
-
1980
- 1980-08-04 JP JP10748580A patent/JPS5734781A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5734781A (en) | 1982-02-25 |
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