JP3079664B2 - Hermetic compressor - Google Patents
Hermetic compressorInfo
- Publication number
- JP3079664B2 JP3079664B2 JP03202870A JP20287091A JP3079664B2 JP 3079664 B2 JP3079664 B2 JP 3079664B2 JP 03202870 A JP03202870 A JP 03202870A JP 20287091 A JP20287091 A JP 20287091A JP 3079664 B2 JP3079664 B2 JP 3079664B2
- Authority
- JP
- Japan
- Prior art keywords
- phase
- stator
- hermetic compressor
- winding
- terminal
- 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 - Fee Related
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Windings For Motors And Generators (AREA)
- Compressor (AREA)
- Rotary Pumps (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、空調用および冷凍用の
密閉型圧縮機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor for air conditioning and refrigeration.
【０００２】[0002]
【従来の技術】一般に空調用および冷凍用の密閉型圧縮
機としてはレシプロ型・ローリングピストン型・スクロ
ール型圧縮機等が利用されているが、一部を除いては誘
導電動機・直流電動機等を密閉容器内に内蔵している。2. Description of the Related Art In general, reciprocating compressors, rolling piston compressors, scroll compressors and the like are used as hermetic compressors for air conditioning and refrigeration. In some cases, induction motors and DC motors are used. Built in a sealed container.
【０００３】図７にローリングピストン型圧縮機の基本
構造を示す。密閉容器１内の電動要素３は回転子３１と
固定子３２からなり、回転子３１は圧縮要素２の主軸２
１に取り付けられ、前記密閉容器１に設けたターミナル
１２を介して外部電源を電動要素３に印加することによ
って圧縮要素２は駆動される。電動要素３には一般に単
相及び三相誘導機が使われており、図８は三相誘導機の
回路図及び固定子の捲線の例を示す。固定子３２の鉄芯
３２２のスロット溝３２３に三相の捲線３２１が捲かれ
て、ａ・ｂ・ｃは三相の各相で図７の前記ターミナル１
２と接続されている。FIG. 7 shows a basic structure of a rolling piston type compressor. The electric element 3 in the closed casing 1 includes a rotor 31 and a stator 32, and the rotor 31 is a main shaft 2 of the compression element 2.
The compression element 2 is driven by applying an external power supply to the electric element 3 via a terminal 12 provided in the closed container 1. In general, single-phase and three-phase induction machines are used for the electric element 3, and FIG. 8 shows a circuit diagram of the three-phase induction machine and an example of a winding of a stator. A three-phase winding 321 is wound around a slot groove 323 of an iron core 322 of the stator 32, and a, b, and c are three-phase windings.
2 is connected.
【０００４】近年、空調用および冷凍用の密閉型圧縮機
は快適性・省エネルギー性の追求の要望により、高出力
の電動機及びインバータ駆動による可変周波数の電動機
が利用されている。In recent years, high-output motors and variable-frequency motors driven by inverters have been used for air-conditioning and refrigeration hermetic compressors in response to demands for comfort and energy saving.
【０００５】[0005]
【発明が解決しようとする課題】このような構造で高出
力の圧縮機を構成しようとすると、電動要素の捲線に流
れる電流が増大し電動機焼損等の原因となる。また、圧
縮機の駆動装置も大電流に耐えれる構成が必要である。If an attempt is made to construct a high-output compressor with such a structure, the current flowing through the windings of the electric elements will increase, causing motor burnout and the like. In addition, the driving device of the compressor also needs to be configured to withstand a large current.
【０００６】本発明は、上記課題を解決するもので、高
出力の冷凍機・空調機においても低コストで信頼性の高
い圧縮機及び駆動装置を提供することを目的とするもの
である。An object of the present invention is to solve the above-mentioned problems, and to provide a low-cost and highly reliable compressor and drive device even for a high-output refrigerator / air conditioner.
【０００７】圧縮要素を密閉容器の上部に配するスクロ
ール型圧縮機に於ては多数の端子を取り付けることは困
難である。[0007] It is difficult to mount a large number of terminals in a scroll type compressor in which a compression element is arranged on the upper part of a closed vessel.
【０００８】第２の発明はスクロール型圧縮機に於て上
記問題を解決することを目的とするもので、且つ第１の
発明を構成可能となる。[0008] A second aspect of the present invention aims to solve the above-mentioned problems in a scroll compressor, and the first aspect of the present invention can be configured.
【０００９】[0009]
【課題を解決するための手段】この課題を解決するため
に本発明は、圧縮機の電動要素を二系統の三相捲線で構
成し、別個に外部電源を印加するものである。SUMMARY OF THE INVENTION In order to solve this problem, the present invention comprises an electric element of a compressor comprising two systems of three-phase windings and separately applying an external power supply.
【００１０】第２の発明は圧縮要素を密閉容器の上部に
配するスクロール型圧縮機に於て前記密閉型容器の側壁
に軸線と垂直に並べて２個のガラスターミナルを配する
ものである。According to a second aspect of the present invention, in a scroll compressor in which a compression element is disposed above a closed container, two glass terminals are disposed on a side wall of the closed container so as to be perpendicular to an axis.
【００１１】[0011]
【作用】この構成により、二系統の外部電源より圧縮機
の電動要素に電力供給が可能になり各位相間に流れる電
流も半減させ信頼性の高い圧縮機及び駆動装置を提供す
るものである。With this configuration, it is possible to supply electric power to the electric elements of the compressor from two external power sources, reduce the current flowing between the phases by half, and provide a highly reliable compressor and drive device.
【００１２】第２の発明は圧縮要素を密閉容器の上部に
配するスクロール型圧縮機に於て前記密閉容器の側壁に
軸線と垂直に並べて２個のガラスターミナルを配するこ
とにより圧縮機を大きくせずに多数の端子を取り付ける
ものである。According to a second aspect of the present invention, in a scroll type compressor in which a compression element is arranged on an upper portion of a closed vessel, the size of the compressor is increased by arranging two glass terminals on a side wall of the closed vessel in a direction perpendicular to an axis. A large number of terminals are attached without doing so.
【００１３】[0013]
【実施例】図８は三相誘導機のΔ結線の回路図と捲線の
一般例である。固定子３２の鉄芯３２２のスロット溝３
２３に三相の捲線３２１が捲かれて、ａ・ｂ・ｃは三相
の各相である。FIG. 8 is a circuit diagram of a .DELTA. Connection of a three-phase induction machine and a general example of a winding. Slot groove 3 of iron core 322 of stator 32
A three-phase winding 321 is wound around 23, and a, b, and c are each of the three phases.
【００１４】ａ・ｂ・ｃの各相間でＮ極・Ｓ極の磁界が
発生するように捲線は捲かれている。The windings are wound so that N-pole and S-pole magnetic fields are generated between the phases a, b, and c.
【００１５】図１は本発明の実施例の回路図と捲線の例
である。捲線３２１は絶縁紙３２４により絶縁された二
系統の電線より形成され、固定子３２の鉄芯３２２のス
ロット溝３２３の中に同じに捲かれた構造で、第一の系
統の電源ａ１・ｂ１・ｃ１と第二の系統の電源ａ２・ｂ
２・ｃ２を供給するものである。この場合ａ１とａ２、
ｂ１とｂ２、ｃ１とｃ２は同じ位相でなければならな
い。FIG. 1 is a circuit diagram and an example of a winding according to an embodiment of the present invention. The winding 321 is formed of two lines of electric wires insulated by insulating paper 324 and has a structure wound in the same manner in the slot groove 323 of the iron core 322 of the stator 32. The first system power supply a1, b1,. c1 and power supply a2 · b of the second system
2 · c2. In this case, a1 and a2,
b1 and b2 and c1 and c2 must be in the same phase.
【００１６】一系統の誘導電動機の捲線の捲き数をｎ、
流れる電流をＩとすると発生する磁束Φは Φ＝ｋ・ｎ・Ｉ （ｋは鉄芯の形状によって定まる数）で、二系統で第一
系統の捲線の捲き数をｎ１、流れる電流をＩ１、第二系
統の捲線の捲き数をｎ２、流れる電流をＩ２とすると発
生する磁束Φは Φ＝Φ１＋Φ２ ＝ｋ・（ｎ１・Ｉ１＋ｎ２・Ｉ２） となる。捲線の捲き数と電流の積の和が同じなら、誘導
電動機の特性を変えずに二系統の捲線で構成できる。The number of windings of one system of induction motor is n,
When the flowing current is I, the magnetic flux Φ generated is Φ = k · n · I (k is a number determined by the shape of the iron core), the number of windings of the first winding in two systems is n1, the flowing current is I1, Assuming that the winding number of the second system winding is n2 and the flowing current is I2, the generated magnetic flux Φ is Φ = Φ1 + Φ2 = k · (n1 · I1 + n2 · I2). If the sum of the number of windings and the product of the currents is the same, two windings can be used without changing the characteristics of the induction motor.
【００１７】図２のように二系統の捲線間ａ１とａ２は
絶縁体３２４で絶縁されている。絶縁しないと若干の位
相ズレでも二系統の位相間で高電位差が発生する恐れが
ある。As shown in FIG. 2, the two windings a1 and a2 are insulated by an insulator 324. Unless insulated, a slight potential shift may cause a high potential difference between the two phases.
【００１８】図３はインバータ回路を用いた制御回路構
成図の例で、ＰＷＭ波形生成回路９０と第一のインバー
タ装置９１１と第二のインバータ装置９１２によって圧
縮機に同じ位相の二系統の電源を供給している。第一・
第二のインバータ装置および捲線に流れる電流は半減す
る。FIG. 3 is an example of a control circuit configuration diagram using an inverter circuit. A PWM waveform generation circuit 90, a first inverter device 911, and a second inverter device 912 supply two power supplies of the same phase to the compressor. Supplying. first·
The current flowing through the second inverter device and the winding is reduced by half.
【００１９】図４は捲線の構成の別の例で第一の系統の
捲線で固定子Ｎ極を、第二の系統の捲線で固定子Ｓ極を
構成するものである。この場合も、各相の電流を半減し
て同一の誘導機特性が得られる。FIG. 4 shows another example of a winding structure in which a first system winding forms a stator north pole and a second system winding forms a stator south pole. Also in this case, the same induction motor characteristics can be obtained by halving the current of each phase.
【００２０】固定子の鉄芯３２２に６の倍数個のスロッ
ト溝３２３を設け、第一系統の捲線と第二系統の捲線を
別々のスロット溝３２３に捲くことにより、絶縁紙３２
４を省略できる。また、図３の回路で構成できる。The stator core 322 is provided with a multiple of six slot grooves 323, and the first system winding and the second system winding are wound in separate slot grooves 323, thereby forming the insulating paper 32.
4 can be omitted. Further, it can be constituted by the circuit of FIG.
【００２１】このような二系統の捲線を有する圧縮機を
構成する場合、電動機の保護器も含めると端子および結
線は６〜１０本になる。６本以上の端子を有するガラス
ターミナルは構成出来ないので図７の密閉容器の上鏡板
にターミナルを２個取り付ける構成となる。When a compressor having such two windings is constructed, the number of terminals and connections is 6 to 10 including a motor protector. Since a glass terminal having six or more terminals cannot be formed, two terminals are attached to the upper end plate of the sealed container shown in FIG.
【００２２】しかし、図６のように圧縮要素を密閉容器
の上部に配するスクロール型圧縮機に於て前記密閉容器
の壁面にターミナルを配するため２個のターミナルを並
べて取り付けることは困難であった。However, it is difficult to arrange two terminals side by side because a terminal is arranged on the wall surface of the closed container in a scroll compressor in which the compressing element is disposed on the upper portion of the closed container as shown in FIG. Was.
【００２３】図５はこの問題を解決するため密閉容器の
壁面に外側に出た形状で平坦部を形成することにより、
ターミナル２個を前記密閉容器の側壁に軸線と垂直に並
べて取り付けた例である。FIG. 5 shows a method for solving this problem by forming a flat portion on the wall surface of the closed container in an outwardly protruding shape.
This is an example in which two terminals are attached to the side wall of the closed container so as to be perpendicular to the axis.
【００２４】図６は端子を有するターミナル２個を前記
密閉容器の側壁に１８０゜ずらして取り付けた例で、図
５と比べ密閉容器の壁面の平坦部が狭いため形成が容易
で、コンパクトなスクロール型圧縮機が構成できる。FIG. 6 shows an example in which two terminals having terminals are attached to the side wall of the hermetic container so as to be shifted from each other by 180 °. The flat portion of the wall surface of the hermetic container is narrower than that of FIG. Type compressor can be configured.
【００２５】[0025]
【発明の効果】前記実施例の説明より明らかなように本
発明は、圧縮機の電動要素を二系統の捲線より形成する
ことにより二系統の外部電源と接続ができ、電源部・タ
ーミナル・結線・捲線に流れる電流を低減させることに
より、信頼性の高い圧縮機及び駆動装置を容易に提供す
るものである。As is clear from the description of the above embodiment, according to the present invention, by forming the electric element of the compressor from two windings, it can be connected to two external power sources, and a power supply unit, a terminal, and a connection. -It is intended to easily provide a highly reliable compressor and drive device by reducing the current flowing through the winding.
【００２６】また、第２の発明は圧縮要素を密閉容器の
上部に配するスクロール型圧縮機に於てもコンパクトな
形状で第１の発明を適用できる。Further, the second invention can be applied to the scroll type compressor in which the compression element is arranged on the upper part of the closed vessel in a compact shape.
【図１】（ａ）は本発明の一実施例における電動機の回
路図 （ｂ）は同構成図FIG. 1A is a circuit diagram of an electric motor according to an embodiment of the present invention, and FIG.
【図２】同要部平面図FIG. 2 is a plan view of the main part.
【図３】同電動機を有する制御回路の構成図FIG. 3 is a configuration diagram of a control circuit having the motor.
【図４】（ａ）は本発明の他の実施例による電動機の回
路図 （ｂ）は同構成図4A is a circuit diagram of a motor according to another embodiment of the present invention, and FIG.
【図５】同電動機を設けた圧縮機の密閉容器の断面図FIG. 5 is a sectional view of a sealed container of the compressor provided with the electric motor.
【図６】同圧縮機の一部切欠正面図FIG. 6 is a partially cutaway front view of the compressor.
【図７】従来の圧縮機の断面図FIG. 7 is a sectional view of a conventional compressor.
【図８】（ａ）は同電動機の回路図 （ｂ）は同構成図8A is a circuit diagram of the electric motor, and FIG.
１ 密閉容器 ２ 圧縮要素 ３ 電動要素 １２ ターミナル ３１ 回転子 ３２ 固定子 ９０ ＰＷＭ波形生成回路 ９１ インバータ装置 ３２１ 捲線 ３２２ 鉄芯 ３２４ 絶縁紙 DESCRIPTION OF SYMBOLS 1 Closed container 2 Compression element 3 Electric element 12 Terminal 31 Rotor 32 Stator 90 PWM waveform generation circuit 91 Inverter device 321 Winding 322 Iron core 324 Insulating paper
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F04B 39/00 106 H02K 3/28 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) F04B 39/00 106 H02K 3/28
Claims (6)
閉容器の外へ吐出するための圧縮要素と、前記圧縮要素
を駆動するための電動要素を有し、前記電動要素は前記
圧縮要素の主軸に取り付けた回転子と回転子を囲むよう
に配した固定子からなり、前記固定子の鉄心に捲いた捲
線に前記密閉容器に設けたターミナルを介してインバー
タにより駆動される外部電源を印加することによって駆
動力を生じる密閉型圧縮機に於いて、前記固定子の各位
相間の捲線を並列の二系統の三相捲線より形成し、それ
ぞれの三相捲線に同じ位相の電源を供給する別々のイン
バータにより駆動するように構成したことを特徴とする
密閉型圧縮機。1. A closed container having a compression element for taking in a refrigerant and discharging the refrigerant out of the closed container after compression, and an electric element for driving the compression element, wherein the electric element is the compression element. Invar consists disposed stator surrounding the rotor and rotor mounted on the main shaft, via a terminal provided in the sealed container winding seeded iron core of the stator
In the hermetic compressor to produce a driving force by applying an external power supply which is driven by a motor, the winding between each phase of the stator to form the three-phase windings of the parallel dual, it
Separate inputs that supply the same phase power to each three-phase winding
A hermetic compressor characterized by being driven by a barter .
統の並列な電線より形成し前記ターミナルの端子と前記
電線を別個に連結することにより、二系統の三相捲線と
したことを特徴とする請求項１記載の密閉型圧縮機。2. A two-phase three-phase winding by forming a winding between each phase of the stator from two insulated parallel electric wires and separately connecting the terminal of the terminal and the electric wire. The hermetic compressor according to claim 1, wherein:
線としたことを特徴とする請求項１記載の密閉型圧縮
機。3. The hermetic compressor according to claim 1, wherein the N-pole and S-pole of each phase are two different three-phase windings.
け、二系統の三相捲線を別個に前記各スロット溝に挿入
したことを特徴とする請求項３記載の密閉型圧縮機。4. The hermetic compressor according to claim 3, wherein a slot groove of a multiple of 6 is provided in the iron core of the stator, and two systems of three-phase windings are separately inserted into each of the slot grooves. .
閉容器の外へ吐出するための圧縮要素を前記密閉容器の
上部に、前記圧縮要素を駆動するための電動要素を前記
圧縮要素の下方に有し、前記電動要素は前記圧縮要素の
主軸に取り付けた回転子と回転子を囲むように配した固
定子からなり、前記固定子の鉄芯に捲いた捲線に前記密
閉容器に設けたターミナルを介して外部電源を印加する
ことによって駆動力を生じる密閉型圧縮機に於て、前記
ターミナルを前記密閉容器の側壁に軸線と垂直に並べて
取り付けたガラスターミナル２個からなることを特徴と
する密閉圧縮機。5. A compression element for taking a refrigerant into a closed container and discharging it out of the closed container after compression, and an electric element for driving the compression element on the top of the closed container. The compressor has a lower part, and the electric element includes a rotor attached to a main shaft of the compression element and a stator arranged so as to surround the rotor, and is provided in the hermetic container on a winding wound on an iron core of the stator. In a hermetic compressor that generates a driving force by applying an external power supply through a terminal, the hermetic compressor is characterized in that the terminal comprises two glass terminals mounted on a side wall of the hermetic container so as to be perpendicular to an axis. Hermetic compressor.
に９０゜〜１８０゜ずらして取り付けたことを特徴とす
る請求項５記載の密閉型圧縮機。6. The hermetic compressor according to claim 5, wherein the terminal is mounted on the side wall of the hermetic container at 90 ° to 180 ° perpendicular to the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03202870A JP3079664B2 (en) | 1991-08-13 | 1991-08-13 | Hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03202870A JP3079664B2 (en) | 1991-08-13 | 1991-08-13 | Hermetic compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0544672A JPH0544672A (en) | 1993-02-23 |
| JP3079664B2 true JP3079664B2 (en) | 2000-08-21 |
Family
ID=16464562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03202870A Expired - Fee Related JP3079664B2 (en) | 1991-08-13 | 1991-08-13 | Hermetic compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3079664B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1301976B1 (en) * | 2000-06-20 | 2008-07-30 | Borealis Technical Limited | Method of winding a rotating induction apparatus |
| US9419492B2 (en) * | 2013-08-29 | 2016-08-16 | Dresser-Rand Company | Interface for the transmission of electrical power to a motor-compressor |
| FR3064834B1 (en) | 2017-03-29 | 2019-04-05 | Valeo Equipements Electriques Moteur | ROTATING ELECTRICAL MACHINE WITH OPTIMIZED CONFIGURATION |
| JP7059832B2 (en) * | 2018-07-02 | 2022-04-26 | 株式会社デンソー | motor |
-
1991
- 1991-08-13 JP JP03202870A patent/JP3079664B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0544672A (en) | 1993-02-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |