JP2001061285A - Starter for induction capacitor motor - Google Patents
Starter for induction capacitor motorInfo
- Publication number
- JP2001061285A JP2001061285A JP11233518A JP23351899A JP2001061285A JP 2001061285 A JP2001061285 A JP 2001061285A JP 11233518 A JP11233518 A JP 11233518A JP 23351899 A JP23351899 A JP 23351899A JP 2001061285 A JP2001061285 A JP 2001061285A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- starting
- induction motor
- starting device
- power supply
- 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.)
- Ceased
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、コンデンサ誘導電
動機の始動装置に係り、詳しくは始動回路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a starting device for a capacitor induction motor, and more particularly, to a starting circuit.
【０００２】[0002]
【従来の技術】図３は、従来のコンデンサ誘導電動機の
始動装置の一例を示す接続図である。電源に対して主巻
線と、運転用コンデンサが直列に接続されている補助巻
線とを並列接続してコンデンサ誘導電動機の始動装置が
構成される。2. Description of the Related Art FIG. 3 is a connection diagram showing an example of a conventional starting device for a capacitor induction motor. A starting device for a capacitor induction motor is configured by connecting a main winding and an auxiliary winding in which an operation capacitor is connected in series to a power supply in parallel.
【０００３】しかしながら、上述の従来例の場合、圧縮
機に使用すると始動時に過大電流が流れ、それに伴い電
源電圧の降下を発生する。そして、この過大電流および
電圧降下を海外数カ国において規制され始めている問題
があった。However, in the case of the above-described conventional example, when used in a compressor, an excessive current flows at the time of starting, and the power supply voltage drops accordingly. There has been a problem that this excessive current and voltage drop are beginning to be regulated in several overseas countries.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、上記
従来の問題点に鑑みなされたもので、始動時の過大電流
を削減するコンデンサ誘導電動機の始動装置を提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a starting device for a capacitor induction motor that reduces excessive current at the time of starting, in view of the above-mentioned conventional problems.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、電源に対して主巻線と、運転用コンデンサが直列に
接続されている補助巻線とを並列接続して構成されるコ
ンデンサ誘導電動機の始動装置において、前記主巻線と
運転用コンデンサの接続点と、前記電源の一端との間に
負特性サーミスタを設け、前記補助巻線と前記運転用コ
ンデンサの接続点に一端を接続された始動用コンデンサ
を設け、同始動用コンデンサの他端と前記電源の一端と
の間に正特性サーミスタを設けてなるようにする。In order to achieve the above-mentioned object, a capacitor induction system comprising a main winding and an auxiliary winding to which an operating capacitor is connected in series is connected in parallel to a power supply. In the electric motor starting device, a negative characteristic thermistor is provided between a connection point between the main winding and the operation capacitor and one end of the power supply, and one end is connected to a connection point between the auxiliary winding and the operation capacitor. And a positive temperature coefficient thermistor is provided between the other end of the starting capacitor and one end of the power supply.
【０００６】また、前記負特性サーミスタを、複数個並
列に接続してなるようにする。そして、前記複数個の負
特性サーミスタの常温抵抗値を、各々異なる値にしてな
るようにする。さらに、前記複数個の負特性サーミスタ
の並列抵抗値が、運転時の所定抵抗値に達するまでの時
間を、該電動機の始動から運転状態になるまでの時間と
等しくしてなるようにする。[0006] Further, a plurality of the negative characteristic thermistors are connected in parallel. Then, the room temperature resistance values of the plurality of negative characteristic thermistors are set to different values. Further, the time required for the parallel resistance value of the plurality of negative characteristic thermistors to reach a predetermined resistance value during operation is made equal to the time required from the start of the motor to the operation state.
【０００７】一方、前記始動用コンデンサの容量を前記
運転用コンデンサの容量よりも大きくしてなるようにす
る。On the other hand, the capacity of the starting capacitor is set to be larger than the capacity of the operating capacitor.
【０００８】[0008]
【発明の実施の形態】発明の実施の形態を実施例に基づ
き添付図面を参照して詳細に説明する。図１は、本発明
によるコンデンサ誘導電動機の始動装置の一実施例を示
す接続図である。ここで、１は電源、２は電動機本体、
２ａは主巻線、２ｂは補助巻線、３は運転用コンデン
サ、４は始動用コンデンサ、５、５ａ、５ｂ、５ｃは負
特性サーミスタ、６は正特性サーミスタを示す。なお、
従来と同じ部分の符号は同一とする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail based on embodiments with reference to the accompanying drawings. FIG. 1 is a connection diagram showing one embodiment of a starting device for a capacitor induction motor according to the present invention. Here, 1 is a power supply, 2 is a motor body,
2a is a main winding, 2b is an auxiliary winding, 3 is an operation capacitor, 4 is a starting capacitor, 5, 5a, 5b and 5c are negative characteristic thermistors, and 6 is a positive characteristic thermistor. In addition,
The same reference numerals are used for the same parts as in the related art.
【０００９】電源１に対して主巻線２ａと、運転用コン
デンサ３が直列に接続されている補助巻線２ｂとを並列
接続してコンデンサ誘導電動機２の始動装置を構成す
る。ここで、前記主巻線２ａと運転用コンデンサ３の接
続点と、前記電源１の一端との間に負特性サーミスタ５
を設ける。また、前記補助巻線２ｂと前記運転用コンデ
ンサ３の接続点に一端を接続された始動用コンデンサ４
を設ける。そして、同始動用コンデンサ４の他端と前記
電源１の一端との間に正特性サーミスタ６を設けてい
る。A starting device for the capacitor induction motor 2 is constructed by connecting the main winding 2a and the auxiliary winding 2b, in which the operating capacitor 3 is connected in series, to the power supply 1 in parallel. Here, a negative temperature coefficient thermistor 5 is connected between a connection point between the main winding 2 a and the operating capacitor 3 and one end of the power supply 1.
Is provided. A starting capacitor 4 having one end connected to a connection point between the auxiliary winding 2b and the operating capacitor 3
Is provided. A positive temperature coefficient thermistor 6 is provided between the other end of the starting capacitor 4 and one end of the power supply 1.
【００１０】一方、前記始動用コンデンサ４の容量を前
記運転用コンデンサ３の容量よりも大きくしている。On the other hand, the capacity of the starting capacitor 4 is made larger than the capacity of the operating capacitor 3.
【００１１】次いで、本発明の作用、効果について説明
する。前記負特性サーミスタ５を設けたことにより、始
動時には、前記主巻線２ａを流れる始動電流が最初は少
なく徐々に増大し、運転時には最大となる。Next, the operation and effect of the present invention will be described. By providing the negative characteristic thermistor 5, the starting current flowing through the main winding 2a is small at first at the time of starting and gradually increases, and becomes maximum at the time of operation.
【００１２】一方、前記負特性サーミスタ５を設けたこ
とにより、始動時には同負特性サーミスタ５を通り、前
記補助巻線２ｂを流れる始動電流が最初は多く徐々に減
少し、運転時には最少となる。しかしながら、前記負特
性サーミスタ５から前記補助巻線２ｂに流れ込む電流が
増大するので、運転時には充分な電流が前記補助巻線２
ｂに流れる。また、前記始動用コンデンサ４の容量を前
記運転用コンデンサ３の容量よりも大きくしているの
で、起動特性は良好である。なお、前記補助巻線２ｂに
は前記前記始動用コンデンサ４を通じて始動電流が流れ
るが、前記補助巻線２ｂは前記主巻線２ａよりインピー
ダンスが高いので全体の始動電流は減少する。On the other hand, by providing the negative characteristic thermistor 5, the starting current flowing through the auxiliary winding 2b through the same negative characteristic thermistor 5 at the time of starting is gradually decreased at first, and is minimized at the time of operation. However, since the current flowing from the negative characteristic thermistor 5 to the auxiliary winding 2b increases, a sufficient current flows during the operation.
Flow to b. In addition, since the capacity of the starting capacitor 4 is larger than the capacity of the operating capacitor 3, the starting characteristics are good. A starting current flows through the auxiliary winding 2b through the starting capacitor 4. However, since the auxiliary winding 2b has a higher impedance than the main winding 2a, the total starting current is reduced.
【００１３】図２は、本発明によるコンデンサ誘導電動
機の始動装置の他の実施例を示す接続図である。この実
施例の場合、前記負特性サーミスタ５ａ、５ｂ、５ｃ
を、３個並列に接続している。そして、前記３個の負特
性サーミスタ５ａ、５ｂ、５ｃの常温抵抗値を、各々異
なる値にしている。さらに、前記３個の負特性サーミス
タ５ａ、５ｂ、５ｃの並列抵抗値が、運転時の所定抵抗
値に達するまでの時間を、該電動機本体２の始動から運
転状態になるまでの時間と等しくしている。FIG. 2 is a connection diagram showing another embodiment of the starting device for a capacitor induction motor according to the present invention. In the case of this embodiment, the negative characteristic thermistors 5a, 5b, 5c
Are connected in parallel. The room temperature resistance values of the three negative characteristic thermistors 5a, 5b, 5c are different from each other. Further, the time required for the parallel resistance value of the three negative characteristic thermistors 5a, 5b, 5c to reach a predetermined resistance value during operation is made equal to the time required from the start of the motor body 2 to the operation state. ing.
【００１４】次いで、本発明の作用、効果について説明
する。前記負特性サーミスタ５ａ、５ｂ、５ｃを、３個
並列に接続しているので、運転時の抵抗値を低下させ、
電力損失を削減できる。また、それらの常温抵抗値を、
各々異なる値にしているので、各々温度上昇時間が異な
り始動時から運転時に移るまでの始動電流の変化を緩や
かにできる。さらに、前記３個の負特性サーミスタ５
ａ、５ｂ、５ｃの並列抵抗値が、運転時の所定抵抗値に
達するまでの時間を、該電動機本体２の始動から運転状
態になるまでの時間と等しくしているので、電動機本体
２の始動時間と対応した最適時間の間のみ始動電流を削
減できる。Next, the operation and effect of the present invention will be described. Since the three negative characteristic thermistors 5a, 5b and 5c are connected in parallel, the resistance during operation is reduced,
Power loss can be reduced. Also, their normal temperature resistance value
Since the values are different from each other, the temperature rise time is different from each other, and the change in the starting current from the start to the transition to the operation can be moderated. Further, the three negative characteristic thermistors 5
Since the time required for the parallel resistance values a, 5b and 5c to reach the predetermined resistance value during operation is equal to the time required from the start of the motor body 2 to the operation state, the start of the motor body 2 is started. The starting current can be reduced only during the optimal time corresponding to the time.
【００１５】[0015]
【発明の効果】以上のように本発明においては、電源に
対して主巻線と、運転用コンデンサが直列に接続されて
いる補助巻線とを並列接続して構成されるコンデンサ誘
導電動機の始動装置において、前記主巻線と運転用コン
デンサの接続点と、前記電源の一端との間に負特性サー
ミスタを設け、前記補助巻線と前記運転用コンデンサの
接続点に一端を接続された始動用コンデンサを設け、同
始動用コンデンサの他端と前記電源の一端との間に正特
性サーミスタを設けてなるようにした。この結果、始動
時の過大電流を削減するコンデンサ誘導電動機の始動装
置を提供することができる。As described above, according to the present invention, the starting of the capacitor induction motor constituted by connecting the main winding to the power supply and the auxiliary winding to which the operating capacitor is connected in series is connected in parallel. In the apparatus, a negative characteristic thermistor is provided between a connection point between the main winding and the operation capacitor and one end of the power supply, and a starting point having one end connected to a connection point between the auxiliary winding and the operation capacitor. A capacitor is provided, and a positive temperature coefficient thermistor is provided between the other end of the starting capacitor and one end of the power supply. As a result, it is possible to provide a starting device for a capacitor induction motor that reduces an excessive current at the time of starting.
【図１】本発明によるコンデンサ誘導電動機の始動装置
の一実施例を示す接続図である。FIG. 1 is a connection diagram showing one embodiment of a starting device for a capacitor induction motor according to the present invention.
【図２】本発明によるコンデンサ誘導電動機の始動装置
の他の実施例を示す接続図である。FIG. 2 is a connection diagram showing another embodiment of the starting device for the capacitor induction motor according to the present invention.
【図３】従来のコンデンサ誘導電動機の始動装置の一例
を示す接続図である。FIG. 3 is a connection diagram showing an example of a conventional starting device for a capacitor induction motor.
１ 電源 ２ 電動機本体 ２ａ 主巻線 ２ｂ 補助巻線 ３ 運転用コンデンサ ４ 始動用コンデンサ ５ 負特性サーミスタ ５ａ 負特性サーミスタ ５ｂ 負特性サーミスタ ５ｃ 負特性サーミスタ ６ 正特性サーミスタ DESCRIPTION OF SYMBOLS 1 Power supply 2 Motor main body 2a Main winding 2b Auxiliary winding 3 Operating capacitor 4 Starting capacitor 5 Negative characteristic thermistor 5a Negative characteristic thermistor 5b Negative characteristic thermistor 5c Negative characteristic thermistor 6 Positive characteristic thermistor
Claims (5)
サが直列に接続されている補助巻線とを並列接続して構
成されるコンデンサ誘導電動機の始動装置において、 前記主巻線と運転用コンデンサの接続点と、前記電源の
一端との間に負特性サーミスタを設け、前記補助巻線と
前記運転用コンデンサの接続点に一端を接続された始動
用コンデンサを設け、同始動用コンデンサの他端と前記
電源の一端との間に正特性サーミスタを設けてなること
を特徴とするコンデンサ誘導電動機の始動装置。1. A starting device for a capacitor induction motor comprising a main winding connected to a power supply and an auxiliary winding having an operating capacitor connected in series, the starting device comprising: A negative-characteristic thermistor is provided between the connection point of the capacitor for use and one end of the power supply, and a starting capacitor whose one end is connected to a connection point between the auxiliary winding and the operation capacitor is provided. A starting device for a capacitor induction motor, comprising a positive temperature coefficient thermistor provided between the other end and one end of the power supply.
接続してなることを特徴とする請求項１記載のコンデン
サ誘導電動機の始動装置。2. The starting device for a capacitor induction motor according to claim 1, wherein a plurality of said negative characteristic thermistors are connected in parallel.
抗値を、各々異なる値にしてなることを特徴とする請求
項２記載のコンデンサ誘導電動機の始動装置。3. The starting apparatus for a capacitor induction motor according to claim 2, wherein the plurality of negative temperature coefficient thermistors have different normal temperature resistance values.
抗値が、運転時の所定抵抗値に達するまでの時間を、該
電動機本体の始動から運転状態になるまでの時間と等し
くなるように前記各々の常温抵抗値を設定してなること
を特徴とする請求項３記載のコンデンサ誘導電動機の始
動装置。4. The method according to claim 1, wherein the time required for the parallel resistance value of the plurality of negative characteristic thermistors to reach a predetermined resistance value during operation is equal to the time required for starting the motor body to be in an operation state. 4. The starting device for a capacitor induction motor according to claim 3, wherein each normal temperature resistance value is set.
用コンデンサの容量よりも大きくしてなることを特徴と
する請求項１乃至請求項４記載のコンデンサ誘導電動機
の始動装置。5. The starting device for a capacitor induction motor according to claim 1, wherein the capacity of the starting capacitor is made larger than the capacity of the operating capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11233518A JP2001061285A (en) | 1999-08-20 | 1999-08-20 | Starter for induction capacitor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11233518A JP2001061285A (en) | 1999-08-20 | 1999-08-20 | Starter for induction capacitor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001061285A true JP2001061285A (en) | 2001-03-06 |
Family
ID=16956297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11233518A Ceased JP2001061285A (en) | 1999-08-20 | 1999-08-20 | Starter for induction capacitor motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001061285A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100421394B1 (en) * | 2002-02-22 | 2004-03-09 | 엘지전자 주식회사 | Single capacitor synchronous motor |
| EP1538337A1 (en) * | 2003-12-02 | 2005-06-08 | Roland Weigel | Overload protective arrangement and method for reducing power consumption upon voltage fluctuations |
| KR100511273B1 (en) * | 2002-11-08 | 2005-08-31 | 엘지전자 주식회사 | Driving apparatus for shading coil type single induction motor |
| EP1605581A1 (en) * | 2004-06-08 | 2005-12-14 | LG Electronics Inc. | Induction motor controller |
| EP1615328A1 (en) * | 2004-07-08 | 2006-01-11 | LG Electronics Inc. | Induction motor controller |
| KR100652597B1 (en) | 2005-05-10 | 2006-12-01 | 엘지전자 주식회사 | Shading coil type single-phase hybride induction motor |
| US7515029B2 (en) * | 2002-11-29 | 2009-04-07 | Panasonic Corporation | Starting device for single-phase induction motor |
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| JPH08251985A (en) * | 1995-03-03 | 1996-09-27 | Sanyo Electric Co Ltd | Single phase induction motor |
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1999
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100421394B1 (en) * | 2002-02-22 | 2004-03-09 | 엘지전자 주식회사 | Single capacitor synchronous motor |
| KR100511273B1 (en) * | 2002-11-08 | 2005-08-31 | 엘지전자 주식회사 | Driving apparatus for shading coil type single induction motor |
| US7515029B2 (en) * | 2002-11-29 | 2009-04-07 | Panasonic Corporation | Starting device for single-phase induction motor |
| US7276870B2 (en) | 2003-12-02 | 2007-10-02 | Roland Weigel | Arrangement for overload protection and method for reducing the current consumption in the event of mains voltage fluctuations |
| EP1538337A1 (en) * | 2003-12-02 | 2005-06-08 | Roland Weigel | Overload protective arrangement and method for reducing power consumption upon voltage fluctuations |
| EP1605581A1 (en) * | 2004-06-08 | 2005-12-14 | LG Electronics Inc. | Induction motor controller |
| US7081732B2 (en) | 2004-07-08 | 2006-07-25 | Lg Electronics Inc. | Induction motor controller |
| US7084599B2 (en) | 2004-07-08 | 2006-08-01 | Lg Electronics Inc. | Induction motor controller |
| KR100593542B1 (en) * | 2004-07-08 | 2006-06-28 | 엘지전자 주식회사 | Drive of Capacitor Driven Hybrid Induction Motor |
| CN100347943C (en) * | 2004-07-08 | 2007-11-07 | Lg电子株式会社 | Induction motor controller |
| CN100347944C (en) * | 2004-07-08 | 2007-11-07 | Lg电子株式会社 | Induction motor controller |
| EP1615328A1 (en) * | 2004-07-08 | 2006-01-11 | LG Electronics Inc. | Induction motor controller |
| KR100652597B1 (en) | 2005-05-10 | 2006-12-01 | 엘지전자 주식회사 | Shading coil type single-phase hybride induction motor |
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