WO2015049754A1 - Electric motor or compressor using same - Google Patents
Electric motor or compressor using same Download PDFInfo
- Publication number
- WO2015049754A1 WO2015049754A1 PCT/JP2013/076905 JP2013076905W WO2015049754A1 WO 2015049754 A1 WO2015049754 A1 WO 2015049754A1 JP 2013076905 W JP2013076905 W JP 2013076905W WO 2015049754 A1 WO2015049754 A1 WO 2015049754A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric motor
- stator
- pole teeth
- winding
- pole
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
Definitions
- the present invention relates to an electric motor or a compressor using the same.
- a concentrated winding stator in which a winding is wound directly on a pole tooth of a stator as a stator wound with a field winding of an electric motor.
- the concentrated winding stator can reduce the size and weight of the motor by shortening the end of the winding (coil end).
- the electrical resistance of the winding is reduced, the copper loss caused by the winding current and the electrical resistance can be suppressed, so that a highly efficient electric motor can be obtained.
- a high-efficiency electric motor that can increase the space factor and reduce the winding resistance can be realized.
- connection method there is a method using an adhesive, but there is a concern that the adhesive force may be reduced due to gasification due to heat during operation.
- the adhesive deteriorates due to the refrigerant, or conversely, the adhesive deteriorates the refrigerant or the refrigerating machine oil.
- connection method there is a method in which a concavo-convex shape is provided on the pole teeth and the concavo-convex portion is press-fitted, but there is a concern that stress due to the press-fitting occurs in the pole teeth and deteriorates the magnetic properties.
- the present invention has been made to solve the above-described problems, and an object thereof is to provide a highly efficient and highly reliable electric motor.
- the electric motor according to the present invention is an electric motor including a stator in which a winding is concentrated and wound via an insulating member for each divided pole tooth, and the stator is a connecting member that connects the pole teeth.
- the pole teeth adjacent in the circumferential direction are connected by the connecting member and are configured in an annular shape.
- the pole teeth are connected in an annular shape with the connecting member to form a stator without welding, bonding, and press fitting, high efficiency and high reliability can be obtained.
- FIG. 1 is a top view of the electric motor according to Embodiment 1 of the present invention.
- the electric motor according to the first embodiment is used for a compressor that is a constituent element of a refrigeration cycle such as a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration apparatus, a water heater, and the like. And a rotor not shown.
- the stator 1 includes a pole tooth 2 having an end 2a, an insulating member 3 having a protrusion 3a, a winding 4, and a connecting member 5 having a hole 5a.
- the pole teeth 2 are formed by laminating a predetermined number of electromagnetic steel sheets having a predetermined thickness, and are divided into a plurality of pieces in the circumferential direction (9 divisions in FIG. 1).
- a winding 4 is wound through an insulating member 3 formed of an insulator to constitute one pole.
- the pole teeth 2 are configured as an iron core of the stator 1 in such a manner that the adjacent end portions 2a are in close contact with each other and are arranged in an annular shape.
- the electric circuit of illustration not shown as an electric motor is comprised by giving appropriate connection between the terminals of the coil
- the insulating member 3 is located between the pole teeth 2 and the windings 4 and energizes the windings 4 while ensuring their insulating properties, so that a magnetic force can be generated in the pole teeth 2. .
- the insulating member 3 has protrusions 3a on both ends in the circumferential direction.
- the winding 4 is a conductive coil and is concentratedly wound for each pole tooth 2 via an insulating member 3.
- the connecting member 5 is, for example, a resin rounded rectangle (a rectangular shape with rounded corners), and has holes 5a formed at both ends in the longitudinal direction.
- the protrusions 3a of the adjacent insulating members 3 are fitted into the holes 5a to connect the pole teeth 2 to each other.
- the annular stator 1 can be configured with a predetermined strength and accuracy.
- the stator 1 is formed in an annular shape by connecting the insulating members 3 to each other with the connecting member 5, the pole teeth 2 are in contact with each other at the end portion 2a but are directly connected. Not. Therefore, the electric motor can be easily disassembled and various members can be easily recycled, or when the pole teeth 2 vibrate relative to each other, the vibration of the entire electric motor can be attenuated by the insulating member 3. can get.
- the material and shape of the connection member 5 are not limited to the above. Moreover, the length should just be able to fit the protrusion part 3a of the adjacent insulating member 3, and connect the pole teeth 2, and thickness will have the intensity
- stator 1 can wind the winding 4 directly around the divided pole teeth 2 via the insulating member 3, it is easy to wind, and winding unevenness (also called winding disturbance). ) And the height of the end portion (coil end portion) of the winding 4 can be minimized. In addition, since the space factor can be increased by winding the windings 4 in alignment, or winding can be performed with the thick windings 4, the winding resistance can be lowered.
- the pole teeth 2 are in close contact with each other at the end 2 a, thereby providing a path for the magnetic circuit.
- the influence of resistance can also be reduced.
- the electric motor is configured as described above, when the pole teeth 2 are connected, generation of eddy current loss due to conduction of laminated magnetic steel sheets by welding and hysteresis loss due to stress generation of the electromagnetic steel sheets during press-fitting. Is not generated, and the magnetic characteristics of the pole teeth 2 are not deteriorated, so that a highly efficient state can be maintained.
- the electric motor according to the second embodiment employs a heat-shrinkable resin (for example, polyethylene) as the material of the connection member.
- a heat-shrinkable resin for example, polyethylene
- the connecting member contracts by applying a heating process after fitting the protruding portion 3a of the adjacent insulating member 3 into the hole of the connecting member, and the adjacent electrode teeth 2 are adjacent to each other.
- a load that tries to bring the matching end portions 2a into close contact with each other is generated. Therefore, the mechanical accuracy of the electric motor is improved, and the adhesion between the pole teeth 2 is increased, whereby the air gap between the adjacent end portions 2a can be eliminated. Therefore, the magnetic resistance can be further reduced, and a more efficient electric motor can be realized.
- FIG. FIG. 2 is a top view of the electric motor according to Embodiment 3 of the present invention.
- a housing 6 that holds the stator 7 is mounted on the outer peripheral side of the stator 7.
- the housing 6 is attached to the outer peripheral side of the stator 7 by shrink fitting or press fitting, and can apply a load that compresses the stator 7 in the radial direction. With this load, the adhesion force can be stably controlled, and the adhesion between the pole teeth 2 is further increased, so that the magnetic resistance can be further reduced, and a more efficient electric motor can be realized.
- the housing 6 can increase the rigidity as an electric motor, and can have functions such as dustproofing and waterproofing. By increasing the rigidity, the noise and vibration of the electric motor can be reduced.
- FIG. 3 is a longitudinal sectional view of a rotary compressor 100 according to Embodiment 4 of the present invention.
- the electric motors according to Embodiments 1 to 3 are used for a compressor that is a constituent element of a refrigeration cycle such as a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration apparatus, and a water heater.
- a compressor that is a constituent element of a refrigeration cycle such as a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration apparatus, and a water heater.
- it is the rotary compressor 100 shown in FIG.
- a rotary compressor 100 accommodates an electric motor 11 including a stator 11a and a rotor 11b and a compression mechanism unit 12 driven by the electric motor 11 in an airtight container 10. Yes.
- the rotational force of the electric motor 11 is transmitted to the compression mechanism unit 12 via the crankshaft 13.
- lubricating oil refrigeration machine oil
- the crankshaft 13 includes a main shaft 13a fixed to the rotor 11b of the electric motor 11, a sub shaft 13b provided on the opposite side of the main shaft 13a, and an eccentric portion 13c formed between the main shaft 13a and the sub shaft 13b.
- the crankshaft 13 is rotatably supported by the main bearing 14 and the auxiliary bearing 15.
- the main bearing 14 is provided in the upper part of the compression mechanism part 12, and supports the main axis
- the auxiliary bearing 15 is provided at the lower part of the compression mechanism portion 12 and rotatably supports the auxiliary shaft 13b of the crankshaft 13.
- the compression mechanism 12 includes a cylinder 16, a piston 17, a vane (not shown), and the like.
- a discharge pipe 18 for sending refrigerant gas from the sealed container 10 to the outside is provided, and an accumulator 19 is provided adjacent to the sealed container 10.
- the accumulator 19 communicates with the cylinder chamber of the cylinder 16 via the suction connecting pipe 20.
Abstract
An electric motor is equipped with a stator (1) in which a coil (4) is wound around each divided pole tooth (2) via an insulating member (3) in a concentrated winding manner. The stator (1) is equipped with a connection member (5) for connecting the pole teeth (2) with each other and is formed in a ring shape by using the connection member (5) to connect the pole teeth (2) adjacent in the circumferential direction with each other.
Description
本発明は、電動機またはそれを用いた圧縮機に関するものである。
The present invention relates to an electric motor or a compressor using the same.
従来から電動機の界磁巻線を巻回した固定子として、固定子の極歯に直接、巻線を巻回する集中巻固定子がある。集中巻固定子は、巻線の端部（コイルエンド部）を短くすることにより電動機の小型化、軽量化が可能である。また、巻線の電気抵抗も小さくなるので、電巻線電流と電気抵抗によって生じる銅損を抑えることができるため、高効率な電動機を得ることができる。さらに、その巻線を整列させることにより占積率を高め、巻線抵抗を下げることができる高効率な電動機を実現できる。
Conventionally, there is a concentrated winding stator in which a winding is wound directly on a pole tooth of a stator as a stator wound with a field winding of an electric motor. The concentrated winding stator can reduce the size and weight of the motor by shortening the end of the winding (coil end). In addition, since the electrical resistance of the winding is reduced, the copper loss caused by the winding current and the electrical resistance can be suppressed, so that a highly efficient electric motor can be obtained. Further, by arranging the windings, a high-efficiency electric motor that can increase the space factor and reduce the winding resistance can be realized.
これを実現する一方式として、一極歯毎に分割した固定子に巻線を整列巻し、その後これら極歯を円環状に接続して、固定子とする方式がある（例えば特許文献１参照）。
この巻線を巻回した極歯同士の接続には、隣り合う極歯同士を、溶接したり、接着剤を用いて接着したり、一極歯毎に設けた凹凸部を圧入するなどして一体化し、円環状の固定子を構成している。 As a method for realizing this, there is a method in which windings are aligned and wound around a stator divided for each pole tooth, and then these pole teeth are connected in an annular shape to form a stator (see, for example, Patent Document 1). ).
For the connection between the pole teeth wound with this winding, the adjacent pole teeth are welded together, bonded using an adhesive, or an uneven portion provided for each pole tooth is press-fitted. They are integrated to form an annular stator.
この巻線を巻回した極歯同士の接続には、隣り合う極歯同士を、溶接したり、接着剤を用いて接着したり、一極歯毎に設けた凹凸部を圧入するなどして一体化し、円環状の固定子を構成している。 As a method for realizing this, there is a method in which windings are aligned and wound around a stator divided for each pole tooth, and then these pole teeth are connected in an annular shape to form a stator (see, for example, Patent Document 1). ).
For the connection between the pole teeth wound with this winding, the adjacent pole teeth are welded together, bonded using an adhesive, or an uneven portion provided for each pole tooth is press-fitted. They are integrated to form an annular stator.
しかし、特許文献１に記載の電動機の固定子は、隣り合う極歯同士を溶接して接続しているため、局所的に磁気特性を悪化させたり、溶接の入熱により予め巻回した巻線を機械的に劣化させたりしてしまう可能性があった。
However, since the stator of the electric motor described in Patent Document 1 is connected by welding adjacent pole teeth, the winding is wound in advance by locally deteriorating magnetic characteristics or by heat input of welding. May be mechanically degraded.
また、他の接続方法として、接着剤を用いる方法もあるが、運転中の熱などでガス化して接着力の低下が懸念される。特に、冷媒中で運転される圧縮機用の電動機では、接着剤が冷媒により劣化したり、逆に接着剤が冷媒や冷凍機油を劣化させたりすることが懸念される。
Also, as another connection method, there is a method using an adhesive, but there is a concern that the adhesive force may be reduced due to gasification due to heat during operation. In particular, in an electric motor for a compressor that is operated in a refrigerant, there is a concern that the adhesive deteriorates due to the refrigerant, or conversely, the adhesive deteriorates the refrigerant or the refrigerating machine oil.
さらにその他の接続方法として、極歯に凹凸形状を設け、その凹凸部を圧入する方法もあるが、圧入による応力が極歯に発生して磁気特性を悪化させることが懸念される。
Furthermore, as another connection method, there is a method in which a concavo-convex shape is provided on the pole teeth and the concavo-convex portion is press-fitted, but there is a concern that stress due to the press-fitting occurs in the pole teeth and deteriorates the magnetic properties.
本発明は、以上のような課題を解決するためになされたもので、高効率かつ信頼性の高い電動機を提供することを目的としている。
The present invention has been made to solve the above-described problems, and an object thereof is to provide a highly efficient and highly reliable electric motor.
本発明に係る電動機は、分割された極歯毎に絶縁部材を介して巻線が集中巻された固定子を備えた電動機であって、前記固定子は、前記極歯同士を接続する接続部材を備え、周方向に隣り合う前記極歯同士を前記接続部材で接続して円環状に構成されているものである。
The electric motor according to the present invention is an electric motor including a stator in which a winding is concentrated and wound via an insulating member for each divided pole tooth, and the stator is a connecting member that connects the pole teeth. The pole teeth adjacent in the circumferential direction are connected by the connecting member and are configured in an annular shape.
本発明に係る電動機によれば、溶接、接着、及び圧入することなく、接続部材で極歯同士を円環状に接続して固定子とするため、高効率かつ高信頼性を得ることができる。
According to the electric motor of the present invention, since the pole teeth are connected in an annular shape with the connecting member to form a stator without welding, bonding, and press fitting, high efficiency and high reliability can be obtained.
以下、本発明の実施の形態を図面に基づいて説明する。なお、以下に説明する実施の形態によって本発明が限定されるものではない。また、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one.
実施の形態１．
図１は、本発明の実施の形態１に係る電動機の上面図である。
本実施の形態１に係る電動機は、例えば冷蔵庫、冷凍庫、自動販売機、空気調和機、冷凍装置、給湯器などの冷凍サイクルの構成要素となる圧縮機などに用いられるものであり、固定子１と図示省略の回転子とで構成される。
固定子１は、端部２ａを有する極歯２と、突起部３ａを有する絶縁部材３と、巻線４と、穴部５ａを有する接続部材５と、で構成される。Embodiment 1 FIG.
FIG. 1 is a top view of the electric motor according toEmbodiment 1 of the present invention.
The electric motor according to the first embodiment is used for a compressor that is a constituent element of a refrigeration cycle such as a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration apparatus, a water heater, and the like. And a rotor not shown.
Thestator 1 includes a pole tooth 2 having an end 2a, an insulating member 3 having a protrusion 3a, a winding 4, and a connecting member 5 having a hole 5a.
図１は、本発明の実施の形態１に係る電動機の上面図である。
本実施の形態１に係る電動機は、例えば冷蔵庫、冷凍庫、自動販売機、空気調和機、冷凍装置、給湯器などの冷凍サイクルの構成要素となる圧縮機などに用いられるものであり、固定子１と図示省略の回転子とで構成される。
固定子１は、端部２ａを有する極歯２と、突起部３ａを有する絶縁部材３と、巻線４と、穴部５ａを有する接続部材５と、で構成される。
FIG. 1 is a top view of the electric motor according to
The electric motor according to the first embodiment is used for a compressor that is a constituent element of a refrigeration cycle such as a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration apparatus, a water heater, and the like. And a rotor not shown.
The
極歯２は、所定厚さの電磁鋼板が所定枚数積層されて形成され、周方向に複数に分割されている（図１では９分割）。また、極歯２毎には絶縁体で形成された絶縁部材３を介して巻線４が巻回されて、１つの極を構成している。また、極歯２は、互いに隣り合う端部２ａ同士が密着し、円環状に並んで固定子１の鉄心として構成される。また、極歯２毎に巻回された巻線４の端末同士に適切な結線を施すことにより、電動機としての図示省略の電気回路を構成している。
The pole teeth 2 are formed by laminating a predetermined number of electromagnetic steel sheets having a predetermined thickness, and are divided into a plurality of pieces in the circumferential direction (9 divisions in FIG. 1). In addition, for each pole tooth 2, a winding 4 is wound through an insulating member 3 formed of an insulator to constitute one pole. Further, the pole teeth 2 are configured as an iron core of the stator 1 in such a manner that the adjacent end portions 2a are in close contact with each other and are arranged in an annular shape. Moreover, the electric circuit of illustration not shown as an electric motor is comprised by giving appropriate connection between the terminals of the coil | winding 4 wound for every pole tooth 2. FIG.
絶縁部材３は、極歯２と巻線４との間に位置し、それらの絶縁性を確保しながら巻線４を通電することで、極歯２に磁力を発生できるようにするものである。また、絶縁部材３は周方向の両端側に突起部３ａが形成されている。ここで、絶縁部材３の両端側には、極歯２の端部２ａ上に位置する部分は含まれないものとする。
巻線４は導電性のコイルであり、極歯２毎に絶縁部材３を介して集中巻されている。
接続部材５は、例えば樹脂製の角丸長方形（長方形で角が丸くなった形状）であり、長手方向の両端側に穴部５ａが形成されている。この穴部５ａに、隣り合う絶縁部材３の突起部３ａを嵌め合わせて極歯２同士を接続する。この接続部材５により、所定の強度及び精度で円環状の固定子１を構成することができる。 Theinsulating member 3 is located between the pole teeth 2 and the windings 4 and energizes the windings 4 while ensuring their insulating properties, so that a magnetic force can be generated in the pole teeth 2. . In addition, the insulating member 3 has protrusions 3a on both ends in the circumferential direction. Here, it is assumed that the both ends of the insulating member 3 do not include a portion located on the end 2 a of the pole tooth 2.
The winding 4 is a conductive coil and is concentratedly wound for eachpole tooth 2 via an insulating member 3.
The connectingmember 5 is, for example, a resin rounded rectangle (a rectangular shape with rounded corners), and has holes 5a formed at both ends in the longitudinal direction. The protrusions 3a of the adjacent insulating members 3 are fitted into the holes 5a to connect the pole teeth 2 to each other. By this connection member 5, the annular stator 1 can be configured with a predetermined strength and accuracy.
巻線４は導電性のコイルであり、極歯２毎に絶縁部材３を介して集中巻されている。
接続部材５は、例えば樹脂製の角丸長方形（長方形で角が丸くなった形状）であり、長手方向の両端側に穴部５ａが形成されている。この穴部５ａに、隣り合う絶縁部材３の突起部３ａを嵌め合わせて極歯２同士を接続する。この接続部材５により、所定の強度及び精度で円環状の固定子１を構成することができる。 The
The winding 4 is a conductive coil and is concentratedly wound for each
The connecting
ここで、固定子１は、絶縁部材３同士が接続部材５で接続されて円環状に構成されているため、極歯２同士は、端部２ａで接触しているが直接的には接続されていない。そのため、電動機の解体が容易となり、各種部材のリサイクルがしやすい、または、極歯２同士が相対的に振動する際に、電動機全体の振動を絶縁部材３によって減衰させることができるなどの効果が得られる。
なお、接続部材５の材質や形状は上記に限定されるものではない。また、長さは隣り合う絶縁部材３の突起部３ａを嵌め合わせて極歯２同士を接続することができればよく、厚さは、極歯２同士を接続するための強度を有していればよい。 Here, since thestator 1 is formed in an annular shape by connecting the insulating members 3 to each other with the connecting member 5, the pole teeth 2 are in contact with each other at the end portion 2a but are directly connected. Not. Therefore, the electric motor can be easily disassembled and various members can be easily recycled, or when the pole teeth 2 vibrate relative to each other, the vibration of the entire electric motor can be attenuated by the insulating member 3. can get.
The material and shape of theconnection member 5 are not limited to the above. Moreover, the length should just be able to fit the protrusion part 3a of the adjacent insulating member 3, and connect the pole teeth 2, and thickness will have the intensity | strength for connecting the pole teeth 2 mutually. Good.
なお、接続部材５の材質や形状は上記に限定されるものではない。また、長さは隣り合う絶縁部材３の突起部３ａを嵌め合わせて極歯２同士を接続することができればよく、厚さは、極歯２同士を接続するための強度を有していればよい。 Here, since the
The material and shape of the
本実施の形態１に係る固定子１は、分割された極歯２に絶縁部材３を介して直接的に巻線４を巻回することができるので、巻回し易く巻きムラ（巻き乱れともいう）をなくすことができ、巻線４の端部（コイルエンド部）の高さを極小にすることができる。また、巻線４を整列させて巻回することにより占積率を高めることができるため、または、太い巻線４で巻回することができるため、巻線抵抗を下げることができる。
Since the stator 1 according to the first embodiment can wind the winding 4 directly around the divided pole teeth 2 via the insulating member 3, it is easy to wind, and winding unevenness (also called winding disturbance). ) And the height of the end portion (coil end portion) of the winding 4 can be minimized. In addition, since the space factor can be increased by winding the windings 4 in alignment, or winding can be performed with the thick windings 4, the winding resistance can be lowered.
また、接続部材５で極歯２同士を接続することにより、極歯２同士は端部２ａで互いに密着しているため磁気回路の通路になるが、隣り合う端部２ａ間のエアギャップによる磁気抵抗の影響も小さくすることができる。
このように固定子１が構成されることにより、電気抵抗及び磁気抵抗を小さくすることができるので、電動機の銅損及び鉄損を小さくすることができ、高効率な電動機を実現できる。 Further, by connecting thepole teeth 2 with the connecting member 5, the pole teeth 2 are in close contact with each other at the end 2 a, thereby providing a path for the magnetic circuit. The influence of resistance can also be reduced.
By configuring thestator 1 in this manner, the electric resistance and the magnetic resistance can be reduced, so that the copper loss and iron loss of the electric motor can be reduced, and a highly efficient electric motor can be realized.
このように固定子１が構成されることにより、電気抵抗及び磁気抵抗を小さくすることができるので、電動機の銅損及び鉄損を小さくすることができ、高効率な電動機を実現できる。 Further, by connecting the
By configuring the
以上のように電動機は構成されているので、極歯２を接続する際に、溶接による積層された電磁鋼板の導通による渦電流損の発生、及び、圧入での電磁鋼板の応力発生によるヒステリシス損の発生がなく、極歯２の磁気特性を悪化させることがないため、高効率状態を維持することができる。
Since the electric motor is configured as described above, when the pole teeth 2 are connected, generation of eddy current loss due to conduction of laminated magnetic steel sheets by welding and hysteresis loss due to stress generation of the electromagnetic steel sheets during press-fitting. Is not generated, and the magnetic characteristics of the pole teeth 2 are not deteriorated, so that a highly efficient state can be maintained.
また、溶接ひずみや圧入工程での積層した電磁鋼板の変形によって整列している巻線４を緩ませたり、乱れさせたりすることを防止できるので、信頼性の高い電動機を実現できる。
また、接着剤などを使用することも不要であるので、生産性の悪化や信頼性の悪化の要因を減らすことができる。
よって、安価で生産性の高い電動機を実現できる。 Moreover, since it is possible to prevent thewindings 4 that are aligned due to welding distortion or deformation of the laminated electromagnetic steel sheets in the press-fitting process from being loosened or disturbed, a highly reliable electric motor can be realized.
In addition, since it is not necessary to use an adhesive or the like, it is possible to reduce the factor of productivity deterioration and reliability deterioration.
Therefore, an inexpensive and highly productive electric motor can be realized.
また、接着剤などを使用することも不要であるので、生産性の悪化や信頼性の悪化の要因を減らすことができる。
よって、安価で生産性の高い電動機を実現できる。 Moreover, since it is possible to prevent the
In addition, since it is not necessary to use an adhesive or the like, it is possible to reduce the factor of productivity deterioration and reliability deterioration.
Therefore, an inexpensive and highly productive electric motor can be realized.
実施の形態２．
以下、本実施の形態２について説明するが、本実施の形態１と重複するものについては省略する。
本実施の形態２に係る電動機は、接続部材の材質として、熱収縮性樹脂（例えばポリエチレン）を採用している。
本実施の形態２に係る電動機は、接続部材の穴部に、隣り合う絶縁部材３の突起部３ａを嵌め合わせた後、加熱工程を加えることにより、接続部材は収縮し、極歯２の隣り合う端部２ａ同士を密着させようとする荷重が発生する。よって、電動機の機械的な精度が向上し、極歯２同士の密着性が高まることにより、隣り合う端部２ａ間のエアギャップをなくすことができる。そのため、磁気抵抗をさらに小さくすることができ、さらに高効率な電動機を実現できる。Embodiment 2. FIG.
Hereinafter, the second embodiment will be described, but those overlapping with the first embodiment will be omitted.
The electric motor according to the second embodiment employs a heat-shrinkable resin (for example, polyethylene) as the material of the connection member.
In the electric motor according toEmbodiment 2, the connecting member contracts by applying a heating process after fitting the protruding portion 3a of the adjacent insulating member 3 into the hole of the connecting member, and the adjacent electrode teeth 2 are adjacent to each other. A load that tries to bring the matching end portions 2a into close contact with each other is generated. Therefore, the mechanical accuracy of the electric motor is improved, and the adhesion between the pole teeth 2 is increased, whereby the air gap between the adjacent end portions 2a can be eliminated. Therefore, the magnetic resistance can be further reduced, and a more efficient electric motor can be realized.
以下、本実施の形態２について説明するが、本実施の形態１と重複するものについては省略する。
本実施の形態２に係る電動機は、接続部材の材質として、熱収縮性樹脂（例えばポリエチレン）を採用している。
本実施の形態２に係る電動機は、接続部材の穴部に、隣り合う絶縁部材３の突起部３ａを嵌め合わせた後、加熱工程を加えることにより、接続部材は収縮し、極歯２の隣り合う端部２ａ同士を密着させようとする荷重が発生する。よって、電動機の機械的な精度が向上し、極歯２同士の密着性が高まることにより、隣り合う端部２ａ間のエアギャップをなくすことができる。そのため、磁気抵抗をさらに小さくすることができ、さらに高効率な電動機を実現できる。
Hereinafter, the second embodiment will be described, but those overlapping with the first embodiment will be omitted.
The electric motor according to the second embodiment employs a heat-shrinkable resin (for example, polyethylene) as the material of the connection member.
In the electric motor according to
実施の形態３．
図２は、本発明の実施の形態３に係る電動機の上面図である。
以下、本実施の形態３について説明するが、本実施の形態１及び２と重複するものについては省略する。
図２に示すように固定子７の外周側に、固定子７を保持するハウジング６が装着されている。このハウジング６は、固定子７の外周側に焼き嵌めや圧入により装着されており、固定子７の半径方向に圧縮する荷重を与えることができる。その荷重により、安定的に密着力を制御でき、また、極歯２同士の密着性がさらに高まるため、磁気抵抗をさらに小さくすることができ、さらに高効率な電動機を実現できる。さらに、ハウジング６は電動機としての剛性を高めることができ、防塵、防水などの機能を有することができる。剛性を高めることにより、電動機の騒音や振動を小さくすることができる。Embodiment 3 FIG.
FIG. 2 is a top view of the electric motor according toEmbodiment 3 of the present invention.
Hereinafter, the third embodiment will be described, but the description overlapping with the first and second embodiments will be omitted.
As shown in FIG. 2, ahousing 6 that holds the stator 7 is mounted on the outer peripheral side of the stator 7. The housing 6 is attached to the outer peripheral side of the stator 7 by shrink fitting or press fitting, and can apply a load that compresses the stator 7 in the radial direction. With this load, the adhesion force can be stably controlled, and the adhesion between the pole teeth 2 is further increased, so that the magnetic resistance can be further reduced, and a more efficient electric motor can be realized. Furthermore, the housing 6 can increase the rigidity as an electric motor, and can have functions such as dustproofing and waterproofing. By increasing the rigidity, the noise and vibration of the electric motor can be reduced.
図２は、本発明の実施の形態３に係る電動機の上面図である。
以下、本実施の形態３について説明するが、本実施の形態１及び２と重複するものについては省略する。
図２に示すように固定子７の外周側に、固定子７を保持するハウジング６が装着されている。このハウジング６は、固定子７の外周側に焼き嵌めや圧入により装着されており、固定子７の半径方向に圧縮する荷重を与えることができる。その荷重により、安定的に密着力を制御でき、また、極歯２同士の密着性がさらに高まるため、磁気抵抗をさらに小さくすることができ、さらに高効率な電動機を実現できる。さらに、ハウジング６は電動機としての剛性を高めることができ、防塵、防水などの機能を有することができる。剛性を高めることにより、電動機の騒音や振動を小さくすることができる。
FIG. 2 is a top view of the electric motor according to
Hereinafter, the third embodiment will be described, but the description overlapping with the first and second embodiments will be omitted.
As shown in FIG. 2, a
実施の形態４．
図３は、本発明の実施の形態４に係る回転圧縮機１００の縦断面図である。
以下、本実施の形態４について説明するが、本実施の形態１～３と重複するものについては省略する。
実施の形態１～３に係る電動機は、冷蔵庫、冷凍庫、自動販売機、空気調和機、冷凍装置、給湯器などの冷凍サイクルの構成要素となる圧縮機などに用いられる。例えば、図３に示す回転圧縮機１００である。Embodiment 4 FIG.
FIG. 3 is a longitudinal sectional view of arotary compressor 100 according to Embodiment 4 of the present invention.
Hereinafter, the fourth embodiment will be described, but the description overlapping with the first to third embodiments will be omitted.
The electric motors according toEmbodiments 1 to 3 are used for a compressor that is a constituent element of a refrigeration cycle such as a refrigerator, a freezer, a vending machine, an air conditioner, a refrigeration apparatus, and a water heater. For example, it is the rotary compressor 100 shown in FIG.
図３は、本発明の実施の形態４に係る回転圧縮機１００の縦断面図である。
以下、本実施の形態４について説明するが、本実施の形態１～３と重複するものについては省略する。
実施の形態１～３に係る電動機は、冷蔵庫、冷凍庫、自動販売機、空気調和機、冷凍装置、給湯器などの冷凍サイクルの構成要素となる圧縮機などに用いられる。例えば、図３に示す回転圧縮機１００である。
FIG. 3 is a longitudinal sectional view of a
Hereinafter, the fourth embodiment will be described, but the description overlapping with the first to third embodiments will be omitted.
The electric motors according to
本発明の実施の形態４に係る回転圧縮機１００は、密閉容器１０内に、固定子１１ａと回転子１１ｂとからなる電動機１１と、電動機１１により駆動される圧縮機構部１２とを収納している。電動機１１の回転力は、クランク軸１３を介して圧縮機構部１２に伝達される。また、密閉容器１０内には、圧縮機構部１２の潤滑する潤滑油（冷凍機油）が貯留されている。
クランク軸１３は、電動機１１の回転子１１ｂに固定される主軸１３ａと、主軸１３ａの反対側に設けられる副軸１３ｂと、主軸１３ａと副軸１３ｂとの間に形成される偏芯部１３ｃとを有する。 Arotary compressor 100 according to Embodiment 4 of the present invention accommodates an electric motor 11 including a stator 11a and a rotor 11b and a compression mechanism unit 12 driven by the electric motor 11 in an airtight container 10. Yes. The rotational force of the electric motor 11 is transmitted to the compression mechanism unit 12 via the crankshaft 13. In the sealed container 10, lubricating oil (refrigeration machine oil) that is lubricated by the compression mechanism 12 is stored.
Thecrankshaft 13 includes a main shaft 13a fixed to the rotor 11b of the electric motor 11, a sub shaft 13b provided on the opposite side of the main shaft 13a, and an eccentric portion 13c formed between the main shaft 13a and the sub shaft 13b. Have
クランク軸１３は、電動機１１の回転子１１ｂに固定される主軸１３ａと、主軸１３ａの反対側に設けられる副軸１３ｂと、主軸１３ａと副軸１３ｂとの間に形成される偏芯部１３ｃとを有する。 A
The
このクランク軸１３は、主軸受１４及び副軸受１５によって回転自在に支持されている。詳しくは、主軸受１４は、圧縮機構部１２の上部に設けられており、クランク軸１３の主軸１３ａを回転自在に支持する。また、副軸受１５は、圧縮機構部１２の下部に設けられており、クランク軸１３の副軸１３ｂを回転自在に支持する。
また、圧縮機構部１２は、シリンダ１６、ピストン１７、及び図示省略のベーンなどを備える。 Thecrankshaft 13 is rotatably supported by the main bearing 14 and the auxiliary bearing 15. In detail, the main bearing 14 is provided in the upper part of the compression mechanism part 12, and supports the main axis | shaft 13a of the crankshaft 13 rotatably. Further, the auxiliary bearing 15 is provided at the lower part of the compression mechanism portion 12 and rotatably supports the auxiliary shaft 13b of the crankshaft 13.
Thecompression mechanism 12 includes a cylinder 16, a piston 17, a vane (not shown), and the like.
また、圧縮機構部１２は、シリンダ１６、ピストン１７、及び図示省略のベーンなどを備える。 The
The
密閉容器１０の上部には、冷媒ガスを密閉容器１０内から外部に送り出す吐出管１８が設けられており、また、密閉容器１０に隣接してアキュムレータ１９が設けられている。このアキュムレータ１９は、吸入連結管２０を介して、シリンダ１６のシリンダ室と連通している。
In the upper part of the sealed container 10, a discharge pipe 18 for sending refrigerant gas from the sealed container 10 to the outside is provided, and an accumulator 19 is provided adjacent to the sealed container 10. The accumulator 19 communicates with the cylinder chamber of the cylinder 16 via the suction connecting pipe 20.
１、固定子、２ 極歯、２ａ （極歯の）端部、３ 絶縁部材、３ａ （絶縁部材の）突起部、４ 巻線、５ 接続部材、５ａ （接続部材の）穴部、６ ハウジング、７ 固定子、１０ 密閉容器、１１ 電動機、１１ａ 固定子、１１ｂ 回転子、１２ 圧縮機構部、１３ クランク軸、１３ａ 主軸、１３ｂ 副軸、１３ｃ 偏芯部、１４ 主軸受、１５ 副軸受、１６ シリンダ、１７ ピストン、１８ 吐出管、１９ アキュムレータ、２０ 吸入連結管、１００ 回転圧縮機。
1, stator, 2 pole teeth, 2a (pole tooth) end, 3 insulation member, 3a (insulation member) protrusion, 4 winding, 5 connection member, 5a (connection member) hole, 6 housing , 7 Stator, 10 Sealed container, 11 Motor, 11a Stator, 11b Rotor, 12 Compression mechanism, 13 Crankshaft, 13a Main shaft, 13b Sub shaft, 13c Eccentric portion, 14 Main bearing, 15 Sub bearing, 16 Cylinder, 17 piston, 18 discharge pipe, 19 accumulator, 20 suction connection pipe, 100 rotary compressor.
Claims (5)
- 分割された極歯毎に絶縁部材を介して巻線が集中巻された固定子を備えた電動機であって、
前記固定子は、
前記極歯同士を接続する接続部材を備え、
周方向に隣り合う前記極歯同士を前記接続部材で接続して円環状に構成されている
ことを特徴とする電動機。 An electric motor having a stator in which windings are concentrated and wound through an insulating member for each divided pole tooth,
The stator is
Comprising a connecting member for connecting the pole teeth,
The motor is characterized in that the pole teeth adjacent in the circumferential direction are connected to each other by the connecting member and are formed in an annular shape. - 前記絶縁部材は周方向の両端に突起部を有し、
前記接続部材は、
両端に穴部を有し、
隣り合う前記突起部を前記穴部に嵌め合わせて前記極歯同士を接続する
ことを特徴とする請求項１に記載の電動機。 The insulating member has protrusions at both ends in the circumferential direction,
The connecting member is
Have holes at both ends,
The electric motor according to claim 1, wherein the adjacent protrusions are fitted into the hole to connect the pole teeth. - 前記接続部材は、熱収縮性樹脂で構成された
ことを特徴とする請求項１または２に記載の電動機。 The electric motor according to claim 1, wherein the connection member is made of a heat-shrinkable resin. - 前記固定子は、
外周側にハウジングが装着された
ことを特徴とする請求項１～３のいずれか一項に記載の電動機。 The stator is
The electric motor according to any one of claims 1 to 3, wherein a housing is mounted on an outer peripheral side. - 請求項１～４のいずれか一項に記載の電動機を備えた圧縮機。 A compressor provided with the electric motor according to any one of claims 1 to 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/076905 WO2015049754A1 (en) | 2013-10-03 | 2013-10-03 | Electric motor or compressor using same |
| JP2015540314A JP6005296B2 (en) | 2013-10-03 | 2013-10-03 | Electric motor or compressor using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/076905 WO2015049754A1 (en) | 2013-10-03 | 2013-10-03 | Electric motor or compressor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015049754A1 true WO2015049754A1 (en) | 2015-04-09 |
Family
ID=52778365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2013/076905 WO2015049754A1 (en) | 2013-10-03 | 2013-10-03 | Electric motor or compressor using same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6005296B2 (en) |
| WO (1) | WO2015049754A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11341717A (en) * | 1998-05-28 | 1999-12-10 | Matsushita Seiko Co Ltd | Stator of motor and its manufacture |
| JP2002136002A (en) * | 2000-10-20 | 2002-05-10 | Matsushita Electric Ind Co Ltd | Motor |
| JP2007074875A (en) * | 2005-09-09 | 2007-03-22 | Toyota Motor Corp | Stator core, motor, method for manufacturing stator |
| JP2012065546A (en) * | 2003-05-08 | 2012-03-29 | Asmo Co Ltd | Stator of rotary electric machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7414347B2 (en) * | 2004-03-23 | 2008-08-19 | Emerson Electric Co. | End cap for segmented stator |
-
2013
- 2013-10-03 JP JP2015540314A patent/JP6005296B2/en active Active
- 2013-10-03 WO PCT/JP2013/076905 patent/WO2015049754A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11341717A (en) * | 1998-05-28 | 1999-12-10 | Matsushita Seiko Co Ltd | Stator of motor and its manufacture |
| JP2002136002A (en) * | 2000-10-20 | 2002-05-10 | Matsushita Electric Ind Co Ltd | Motor |
| JP2012065546A (en) * | 2003-05-08 | 2012-03-29 | Asmo Co Ltd | Stator of rotary electric machine |
| JP2007074875A (en) * | 2005-09-09 | 2007-03-22 | Toyota Motor Corp | Stator core, motor, method for manufacturing stator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6005296B2 (en) | 2016-10-12 |
| JPWO2015049754A1 (en) | 2017-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6377128B2 (en) | Manufacturing method of rotor | |
| JP4710993B2 (en) | Armature core | |
| US7126248B2 (en) | Motor with stator formed by assembling divided stator-members into an annular shape, and compressor incorporating the same motor | |
| CN108028557B (en) | Permanent magnet embedded motor, compressor and refrigeration air conditioner | |
| JPWO2007114079A1 (en) | Motor, motor manufacturing method and compressor | |
| WO2015083687A1 (en) | Compressor | |
| US20170045268A1 (en) | Electric motor, hermetic compressor, and refrigeration cycle apparatus | |
| JP2008245504A (en) | Manufacturing method of armature core, and armature core | |
| WO2016063576A1 (en) | Compressor and method for manufacturing compressor | |
| US20090079292A1 (en) | Interphase insulating sheet of rotating electric machine, method for manufacturing interphase insulating sheet, and electric compressor | |
| KR100677274B1 (en) | Stator assembly for motor | |
| WO2018037455A1 (en) | Consequent pole-type rotor, electric motor, and air conditioner | |
| JP5708267B2 (en) | Rotating electric machine and compressor using the same | |
| JP2014096855A (en) | Interphase insulation sheet in rotary electric machine, and motor compressor | |
| US10298091B2 (en) | Rotor of rotating motor, rotating motor, and air-conditioning apparatus | |
| JP2012253918A (en) | Rotating electric machine and compressor using the same | |
| JP4715832B2 (en) | Motor, motor manufacturing method and compressor | |
| JP7038827B2 (en) | Stator, motor, compressor and air conditioner | |
| WO2018173877A1 (en) | Compressor | |
| JP2007244175A (en) | Outer rotor type motor and compressor | |
| JP6005296B2 (en) | Electric motor or compressor using the same | |
| KR102002119B1 (en) | Motor for compressor and reciprocating compressor having the same | |
| JP2011102543A (en) | Compressor | |
| JP4228645B2 (en) | Hermetic compressor | |
| WO2022113346A1 (en) | Stator, motor, compressor, and refrigeration cycle device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13894947 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2015540314 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 13894947 Country of ref document: EP Kind code of ref document: A1 |