WO2019244684A1 - Sealed compressor - Google Patents

Sealed compressor Download PDF

Info

Publication number
WO2019244684A1
WO2019244684A1 PCT/JP2019/022844 JP2019022844W WO2019244684A1 WO 2019244684 A1 WO2019244684 A1 WO 2019244684A1 JP 2019022844 W JP2019022844 W JP 2019022844W WO 2019244684 A1 WO2019244684 A1 WO 2019244684A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
hermetic compressor
stator winding
compressor
stator
Prior art date
Application number
PCT/JP2019/022844
Other languages
French (fr)
Japanese (ja)
Inventor
祐平 福田
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2019244684A1 publication Critical patent/WO2019244684A1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00

Definitions

  • the present disclosure relates to a hermetic compressor used for an air conditioner and a refrigerator such as a refrigerator.
  • this type of hermetic compressor for example, a rotary hermetic compressor, has a motor unit and a compression mechanism unit incorporated in a closed container.
  • the closed container is formed by welding a cover shell such as an upper shell on the trunk shell and a lower shell below the trunk shell.
  • the refrigerant gas compressed by the compression mechanism is discharged into the closed container, and then sent out of the closed container (for example, see Patent Document 1).
  • FIG. 5 is a diagram showing a cross-sectional configuration of a conventional hermetic compressor described in Patent Document 1.
  • the closed container 101 is configured by welding an upper shell 103 and a lower shell 104, which become cover shells, to a body shell 102.
  • the closed casing 101 accommodates an electric motor unit 107 including a stator 105 and a rotor 106 and a compression mechanism unit 108 connected to the electric motor unit 107.
  • the compression mechanism 108 including the cylinder 109, the upper bearing 110, the lower bearing 111, the shaft 112, and the piston 113 compresses the refrigerant gas and discharges the refrigerant gas into the closed container 101 through the valve cover, It is sent out of the closed container 101.
  • the present disclosure provides a hermetic compressor that is reduced in size and height while preventing a rare short circuit due to thermal deterioration of a stator winding.
  • the present disclosure is a hermetic compressor configured to house a motor section having a stator core and a stator winding and a compression mechanism section in a closed container.
  • the closed container has a torso shell and a cover shell welded to the torso shell.
  • the cover shell is configured to cover the space on the motor portion side of the closed container, and covers up to a portion of the motor portion facing the stator core, and is welded and fixed to the trunk shell at a portion of the motor portion facing the stator core. I have.
  • FIG. 1 is a diagram illustrating an appearance of the hermetic compressor according to the first embodiment of the present disclosure.
  • FIG. 2 is a diagram illustrating a cross-sectional configuration of the hermetic compressor according to the first embodiment of the present disclosure.
  • FIG. 3 is a diagram illustrating a cross-sectional configuration of a hermetic compressor according to the second embodiment of the present disclosure.
  • FIG. 4 is an enlarged view illustrating a cross-sectional configuration of a hermetic compressor according to the second embodiment of the present disclosure.
  • FIG. 5 is a diagram illustrating a configuration of a conventional hermetic compressor described in Patent Document 1.
  • the conventional hermetic compressor is currently being reduced in size and height to save space and reduce weight. Therefore, the distance between the upper shell 103 and the upper space 103 of the motor unit 107, that is, the stator 105 of the motor unit 107, is about to be reduced.
  • the welding position of the upper shell 103 with the trunk shell 102 is close to the coil end 115 of the stator winding of the motor 107.
  • One example of an embodiment of the present disclosure is a hermetic compressor configured to house a motor section having a stator core and a stator winding and a compression mechanism section in a closed container.
  • the closed container has a torso shell and a cover shell welded to the torso shell.
  • the cover shell is configured to cover the space on the motor portion side of the closed container, and covers up to a portion of the motor portion facing the stator core, and is welded and fixed to the trunk shell at a portion of the motor portion facing the stator core.
  • the compressor can be reduced in size and height while preventing a rare short circuit due to thermal deterioration of the stator winding.
  • the wall may be provided between the coil end of the stator winding and the cover shell.
  • the effect of radiant heat on the coil end during cover shell welding can also be effectively reduced, and the compressor can be downsized while preventing rare shorts due to thermal deterioration of the stator windings more reliably. And the height can be reduced.
  • the wall may be configured such that the edge of the shell is extended to the upper part of the coil end of the stator winding.
  • FIG. 1 is a diagram illustrating an appearance of a hermetic compressor according to a first embodiment of the present disclosure
  • FIG. 2 is a diagram illustrating a cross-sectional configuration of the hermetic compressor.
  • a hermetic rotary compressor will be shown as an example (hereinafter simply referred to as compressor 50).
  • the electric motor unit 2 and the compression mechanism unit 3 are housed inside the closed casing 1.
  • the inside of the sealed container 1 is filled with a high-temperature and high-pressure working medium and lubricating oil, and the bottom portion constitutes an oil storage section for storing lubricating oil.
  • the electric motor unit 2 is a so-called brushless motor, and includes a rotor 5 fixed to the crankshaft 4 of the compression mechanism unit 3 and a stator 6 provided around the rotor 5.
  • the rotor 5 has a permanent magnet mounted on the rotor core and is integrated.
  • the stator 6 is configured by winding a stator winding 8 around a stator core 7 via insulating paper.
  • the coil end 8a of the stator winding 8 protrudes upward from the upper end of the stator core 7.
  • the stator winding 8 may be either distributed winding or concentrated winding.
  • the compression mechanism section 3 has a cylinder 11 sandwiched between the upper bearing 9 and the lower bearing 10, and a piston 13 disposed in a compression chamber 12 in the cylinder 11.
  • the piston 13 rotates in the compression chamber 12 while contacting a vane (not shown) by the rotation of the crankshaft 4, and sucks and compresses the working medium from the suction pipe 14.
  • the compressed working medium is discharged from the discharge muffler to the container space 16 in the closed container 1 and discharged from the discharge pipe 17 to the outside of the closed container 1.
  • the compressor 50 is provided with an accumulator 19 in the suction pipe 14 in order to prevent liquid compression in the compression chamber 12.
  • the accumulator 19 separates the working medium into gas and liquid and guides only the refrigerant gas to the suction pipe 14.
  • the sealed container 1 of the compressor 50 is configured by welding a shell shell to a body shell 21, in this example, an upper shell 22 and a lower shell 23.
  • the upper shell 22 that covers the motor unit 2 side of the sealed container 1 has a deep drawing configuration that covers the motor unit 2 up to the portion facing the stator core 7.
  • the upper shell 22 is externally fitted to the opening of the trunk shell 21, and the edge is welded and fixed to the trunk shell 21 at a portion A of the electric motor unit 2 facing the stator core 7.
  • the upper shell 22 that covers the electric motor unit side space of the closed casing 1 is welded and fixed to the body shell 21 at a portion A of the electric motor unit 2 facing the stator core 7. Therefore, the distance between the welded portion and the coil end portion 8a of the stator winding 8 of the electric motor unit 2 increases.
  • the compressor 50 can be reduced in size and height to the extent that the insulation distance between the coil end portion 8a of the stator winding 8 and the upper shell 22 is ensured.
  • FIG. 3 is a diagram illustrating a cross-sectional configuration of the hermetic compressor 51 according to the second embodiment of the present disclosure
  • FIG. 4 is an enlarged view illustrating a cross-sectional configuration of the hermetic compressor 51. .
  • the compressor 51 of the present embodiment has almost the same configuration as the compressor 50 of the first embodiment.
  • the compressor 51 of the present embodiment is configured by extending the edge of the shell 21 to the upper part of the coil end portion 8 a of the stator winding 8. That is, the edge of the trunk shell 21 is extended to almost the same height as the upper end of the coil end 8a.
  • a wall 24 is provided between the upper shell 22 and the coil end 8a of the stator winding 8.
  • the wall 24 is formed by extending the edge of the body shell 21 itself. Further, the wall 24 can also be configured by arranging another cylindrical member at the edge of the trunk shell 21.
  • the influence of radiant heat on the coil end portion 8a during welding of the upper shell 22 can be effectively reduced, and rare short-circuit due to thermal deterioration of the stator winding 8 can be more reliably achieved. Can be prevented. And the compressor can be reduced in size and height.
  • the hermetic-type compressor according to the present disclosure has been described using the above-described embodiments.
  • the present disclosure is not limited to these, and various modifications may be made within the scope of achieving the object of the present disclosure. It is possible.
  • the hermetic compressor according to the embodiment is a rotary compressor, but may be a compressor of another type such as a scroll type or a reciprocating type.
  • the motor unit 2 and the compression mechanism unit 3 provided in the closed container 1 have been described as an example in which the motor unit 2 is arranged so as to be located at the upper part, but the motor unit 2 is arranged at the lower part. It may be.
  • the lower shell 23 may be configured as a deep drawing configuration as described in each embodiment.
  • the hermetic compressor is not limited to a vertical installation, but may be a type that is installed horizontally.
  • the hermetic compressor according to the present disclosure can be a highly reliable and compact hermetic compressor, and regardless of its compression form and size, the size of all hermetic compressors can be reduced. This is useful because it can be applied to reduction in height and height.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

This sealed compressor configured such that an electric motor section (2) having a stator core (7) and a stator winding (8), and a compression mechanism section (3) are contained in a sealed container (1). The sealed container (1) has a body shell (21) and a cover shell (22) which is welded to the body shell (21). The cover shell (22) is configured to cover the electric motor section (2)-side space of the sealed container (1), covers up to a portion which faces the stator core (7) of the electric motor section (2), and is welded and affixed to the body shell (21) at the portion which faces the stator core (7) of the electric motor section (2).

Description

密閉型圧縮機Hermetic compressor
　本開示は、空気調和装置および冷蔵庫等の冷凍機器に使用される密閉型圧縮機に関する。 The present disclosure relates to a hermetic compressor used for an air conditioner and a refrigerator such as a refrigerator.
　一般に、この種の密閉型圧縮機、例えば、ロータリ式密閉形圧縮機は、密閉容器内に、電動機部と圧縮機構部とが組み込まれている。そして、密閉容器は、胴シェルの上に上シェル、胴シェルの下に下シェル等の覆シェルがそれぞれ溶接されて構成されている。圧縮機構部で圧縮された冷媒ガスは、密閉容器内に吐出され、その後、密閉容器外へと送出される（例えば、特許文献１参照）。 Generally, this type of hermetic compressor, for example, a rotary hermetic compressor, has a motor unit and a compression mechanism unit incorporated in a closed container. The closed container is formed by welding a cover shell such as an upper shell on the trunk shell and a lower shell below the trunk shell. The refrigerant gas compressed by the compression mechanism is discharged into the closed container, and then sent out of the closed container (for example, see Patent Document 1).
　図５は、従来の、特許文献１記載の密閉型圧縮機の断面構成を示す図である。 FIG. 5 is a diagram showing a cross-sectional configuration of a conventional hermetic compressor described in Patent Document 1.
　密閉容器１０１は、胴シェル１０２に、覆シェルとなる、上シェル１０３および下シェル１０４が溶接されて構成されている。密閉容器１０１内には、ステータ１０５とロータ１０６で構成された電動機部１０７、および、電動機部１０７と連結される圧縮機構部１０８が収容されている。 The closed container 101 is configured by welding an upper shell 103 and a lower shell 104, which become cover shells, to a body shell 102. The closed casing 101 accommodates an electric motor unit 107 including a stator 105 and a rotor 106 and a compression mechanism unit 108 connected to the electric motor unit 107.
　そして、シリンダ１０９、上軸受け１１０、下軸受け１１１、シャフト１１２、および、ピストン１１３等で構成された圧縮機構部１０８が、冷媒ガスを、圧縮し、バルブカバーを通して密閉容器１０１内に吐出した後、密閉容器１０１外へ送出している。 Then, after the compression mechanism 108 including the cylinder 109, the upper bearing 110, the lower bearing 111, the shaft 112, and the piston 113 compresses the refrigerant gas and discharges the refrigerant gas into the closed container 101 through the valve cover, It is sent out of the closed container 101.
特開平１１－６４８０号公報JP-A-11-6480
　本開示は、ステータ巻線の熱劣化によるレアショートを防ぎつつ、小型化および低背化した密閉型圧縮機を提供するものである。 The present disclosure provides a hermetic compressor that is reduced in size and height while preventing a rare short circuit due to thermal deterioration of a stator winding.
　本開示は、密閉容器内に、ステータコアおよびステータ巻線を有する電動機部と、圧縮機構部とが収容されて構成された密閉型圧縮機である。密閉容器は、胴シェルと、胴シェルに溶接された覆シェルとを有している。覆シェルは、密閉容器の電動機部側の空間を覆うように構成されるとともに、電動機部のステータコアと対向する部分までを覆い、電動機部のステータコアと対向する部分において、胴シェルに溶接固定されている。 The present disclosure is a hermetic compressor configured to house a motor section having a stator core and a stator winding and a compression mechanism section in a closed container. The closed container has a torso shell and a cover shell welded to the torso shell. The cover shell is configured to cover the space on the motor portion side of the closed container, and covers up to a portion of the motor portion facing the stator core, and is welded and fixed to the trunk shell at a portion of the motor portion facing the stator core. I have.
　これにより、覆シェルを溶接した時の熱が、電動機部のステータ巻線のコイルエンド部等に与える悪影響を抑制することができる。 Thus, it is possible to suppress the adverse effect of the heat generated when the cover shell is welded on the coil end portion and the like of the stator winding of the electric motor.
　したがって、ステータ巻線の熱劣化によるレアショートを防止しつつ、ステータ巻線のコイルエンドと覆シェルとの間の絶縁距離を確保する程度まで、圧縮機を小型化および低背化することができる。 Therefore, it is possible to reduce the size and height of the compressor to the extent that the insulation distance between the coil end of the stator winding and the cover shell is ensured while preventing a rare short circuit due to thermal deterioration of the stator winding. .
　本開示によれば、ステータ巻線の熱劣化によるレアショートを防止しつつ、圧縮機を小型化および低背化することができる。これにより、信頼性が高く、コンパクトな密閉型圧縮機を提供することができる。 According to the present disclosure, it is possible to reduce the size and height of the compressor while preventing a rare short circuit due to thermal deterioration of the stator winding. Thereby, a highly reliable and compact hermetic compressor can be provided.
図１は、本開示の第１の実施の形態における密閉型圧縮機の外観を示す図である。FIG. 1 is a diagram illustrating an appearance of the hermetic compressor according to the first embodiment of the present disclosure. 図２は、本開示の第１の実施の形態における密閉型圧縮機の断面構成を示す図である。FIG. 2 is a diagram illustrating a cross-sectional configuration of the hermetic compressor according to the first embodiment of the present disclosure. 図３は、本開示の第２の実施の形態における、密閉型の圧縮機の断面構成を示す図である。FIG. 3 is a diagram illustrating a cross-sectional configuration of a hermetic compressor according to the second embodiment of the present disclosure. 図４は、本開示の第２の実施の形態における、密閉型の圧縮機の断面構成を示す拡大図である。FIG. 4 is an enlarged view illustrating a cross-sectional configuration of a hermetic compressor according to the second embodiment of the present disclosure. 図５は、従来の、特許文献１記載の密閉型圧縮機の構成を示す図である。FIG. 5 is a diagram illustrating a configuration of a conventional hermetic compressor described in Patent Document 1.
　（本開示の基礎となる知見）
　従来の密閉型圧縮機は、現在、省スペース化および軽量化のために、小型化および低背化が進められている。このため、密閉容器１０１内の電動機部上部空間１１４、すなわち、電動機部１０７のステータ１０５と、上シェル１０３との間の距離は縮小されようとしている。 (Knowledge underlying the present disclosure)
The conventional hermetic compressor is currently being reduced in size and height to save space and reduce weight. Therefore, the distance between the upper shell 103 and the upper space 103 of the motor unit 107, that is, the stator 105 of the motor unit 107, is about to be reduced.
　しかしながら、密閉容器１０１内の上部空間１１４を縮小すると、上シェル１０３の、胴シェル１０２との溶接個所が、電動機部１０７のステータ巻線のコイルエンド部１１５に近接する。 However, when the upper space 114 in the closed casing 101 is reduced, the welding position of the upper shell 103 with the trunk shell 102 is close to the coil end 115 of the stator winding of the motor 107.
　これにより、上シェル１０３と胴シェル１０２とを溶接した時に生じる熱の影響により、電動機部１０７のステータ巻線のコイルエンド部１１５の被覆が溶融劣化して、使用時に、レアショートが発生するなど、品質が不安定化する問題がある。 As a result, due to the effect of heat generated when the upper shell 103 and the body shell 102 are welded, the coating of the coil end portion 115 of the stator winding of the electric motor unit 107 is melted and deteriorated, and a rare short circuit occurs during use. However, there is a problem that the quality becomes unstable.
　このため、圧縮機の信頼性が低下することになり、上部空間の縮小による、小型化および低背化には限界がある。 For this reason, the reliability of the compressor is reduced, and there is a limit to the reduction in size and height due to the reduction of the upper space.
　本開示は、このような知見に基づいてなされたものである。 The present disclosure has been made based on such findings.
　（本開示の実施の態様）
　本開示の態様の一例は、密閉容器内に、ステータコアおよびステータ巻線を有する電動機部と、圧縮機構部とが収容されて構成された密閉型圧縮機である。密閉容器は、胴シェルと、胴シェルに溶接された覆シェルとを有している。覆シェルは、密閉容器の電動機部側の空間を覆うように構成されるとともに、電動機部のステータコアと対向する部分までを覆い、電動機部のステータコアと対向する部分において、胴シェルに溶接固定されている。 (Embodiments of the present disclosure)
One example of an embodiment of the present disclosure is a hermetic compressor configured to house a motor section having a stator core and a stator winding and a compression mechanism section in a closed container. The closed container has a torso shell and a cover shell welded to the torso shell. The cover shell is configured to cover the space on the motor portion side of the closed container, and covers up to a portion of the motor portion facing the stator core, and is welded and fixed to the trunk shell at a portion of the motor portion facing the stator core. I have.
　これにより、胴シェルに覆シェルを溶接した時の熱が、電動機部のステータ巻線のコイルエンド部に与える悪影響を抑制することができる。したがって、ステータ巻線の熱劣化によるレアショートを防止しつつ、圧縮機を小型化および低背化することができる。 Thus, it is possible to suppress the adverse effect of heat generated when the cover shell is welded to the trunk shell on the coil end portion of the stator winding of the motor unit. Therefore, the compressor can be reduced in size and height while preventing a rare short circuit due to thermal deterioration of the stator winding.
　また、ステータ巻線のコイルエンド部と、覆シェルとの間に、壁が設けられた構成であってもよい。 The wall may be provided between the coil end of the stator winding and the cover shell.
　これにより、覆シェル溶接時の、コイルエンド部に対する輻射熱の影響をも効果的に低減することができ、ステータ巻線の熱劣化によるレアショートを、より確実に防止しつつ、圧縮機を小型化および低背化することができる。 As a result, the effect of radiant heat on the coil end during cover shell welding can also be effectively reduced, and the compressor can be downsized while preventing rare shorts due to thermal deterioration of the stator windings more reliably. And the height can be reduced.
　また、胴シェルの端縁をステータ巻線のコイルエンド部の上部まで延長させることにより、壁が構成された構成であってもよい。 The wall may be configured such that the edge of the shell is extended to the upper part of the coil end of the stator winding.
　以下、本開示の実施の形態について図面を参照しながら説明する。なお、この実施の形態によって本開示が限定されるものではない。また、各図において、それぞれ同じ構成要素については同じ符号を用い説明を省略する。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The present disclosure is not limited by the embodiment. In each drawing, the same components are denoted by the same reference numerals, and description thereof is omitted.
　（第１の実施の形態）
　図１は、本開示の第１の実施の形態における密閉型圧縮機の外観を示す図であり、図２は、同密閉型圧縮機の断面構成を示す図である。 (First Embodiment)
FIG. 1 is a diagram illustrating an appearance of a hermetic compressor according to a first embodiment of the present disclosure, and FIG. 2 is a diagram illustrating a cross-sectional configuration of the hermetic compressor.
　本実施の形態の密閉型圧縮機として、密閉型のロータリ式圧縮機を例として示す（以下、単純に圧縮機５０と記載する）。 と し て As the hermetic compressor of the present embodiment, a hermetic rotary compressor will be shown as an example (hereinafter simply referred to as compressor 50).
　まず、全体構成を説明する。 First, the overall configuration will be described.
　本実施形態の圧縮機５０は、密閉容器１の内部に、電動機部２および圧縮機構部３が収容されている。密閉容器１の内部は、高温高圧の作動媒体、および、潤滑油で満たされ、底部は、潤滑油を溜める貯油部を構成している。 圧 縮 In the compressor 50 of the present embodiment, the electric motor unit 2 and the compression mechanism unit 3 are housed inside the closed casing 1. The inside of the sealed container 1 is filled with a high-temperature and high-pressure working medium and lubricating oil, and the bottom portion constitutes an oil storage section for storing lubricating oil.
　電動機部２は、所謂、ブラシレス・モータであり、圧縮機構部３のクランクシャフト４に固定されたロータ５と、ロータ５の周囲に設けられたステータ６とを備えている。 The electric motor unit 2 is a so-called brushless motor, and includes a rotor 5 fixed to the crankshaft 4 of the compression mechanism unit 3 and a stator 6 provided around the rotor 5.
　ロータ５は、ロータ鉄心に、永久磁石が装着され、一体化されている。 The rotor 5 has a permanent magnet mounted on the rotor core and is integrated.
　ステータ６は、ステータコア７に、絶縁紙を介してステータ巻線８が巻装されて構成されている。 The stator 6 is configured by winding a stator winding 8 around a stator core 7 via insulating paper.
　ステータ巻線８のコイルエンド部８ａは、ステータコア７の上端部から上方に向けて突出している。 The coil end 8a of the stator winding 8 protrudes upward from the upper end of the stator core 7.
　なお、このステータ巻線８は、分布巻き、または、集中巻きのいずれであってもよい。 The stator winding 8 may be either distributed winding or concentrated winding.
　圧縮機構部３は、上軸受け９と下軸受け１０とで挟持されたシリンダ１１と、シリンダ１１内の圧縮室１２に配置したピストン１３とを有している。 The compression mechanism section 3 has a cylinder 11 sandwiched between the upper bearing 9 and the lower bearing 10, and a piston 13 disposed in a compression chamber 12 in the cylinder 11.
　ピストン１３は、クランクシャフト４の回転により、ベーン（図示せず）に当接しながら圧縮室１２内で回転運動し、吸入管１４から作動媒体を吸引し、圧縮する。 The piston 13 rotates in the compression chamber 12 while contacting a vane (not shown) by the rotation of the crankshaft 4, and sucks and compresses the working medium from the suction pipe 14.
　圧縮された作動媒体は、吐出マフラーから、密閉容器１内の容器内空間１６に吐出され、吐出管１７から密閉容器１の外へと吐出される。 作 動 The compressed working medium is discharged from the discharge muffler to the container space 16 in the closed container 1 and discharged from the discharge pipe 17 to the outside of the closed container 1.
　圧縮機５０は、圧縮室１２での液圧縮を防止するため、吸入管１４にアキュームレータ１９が設けられている。アキュームレータ１９は、作動媒体を気液分離し、冷媒ガスだけを吸入管１４に導く。 The compressor 50 is provided with an accumulator 19 in the suction pipe 14 in order to prevent liquid compression in the compression chamber 12. The accumulator 19 separates the working medium into gas and liquid and guides only the refrigerant gas to the suction pipe 14.
　圧縮機５０の密閉容器１は、胴シェル２１に覆シェル、この例では上シェル２２および下シェル２３が溶接されて構成されている。 密閉 The sealed container 1 of the compressor 50 is configured by welding a shell shell to a body shell 21, in this example, an upper shell 22 and a lower shell 23.
　密閉容器１の電動機部２側を覆う上シェル２２は、電動機部２のステータコア７と対向する部分までを覆う、深絞り構成である。上シェル２２は、胴シェル２１の開口部に外嵌合させて、端縁部を、電動機部２のステータコア７と対向する部分Ａにおいて、胴シェル２１に溶接固定されている。 The upper shell 22 that covers the motor unit 2 side of the sealed container 1 has a deep drawing configuration that covers the motor unit 2 up to the portion facing the stator core 7. The upper shell 22 is externally fitted to the opening of the trunk shell 21, and the edge is welded and fixed to the trunk shell 21 at a portion A of the electric motor unit 2 facing the stator core 7.
　以上のように構成された密閉型の圧縮機５０について、以下、その動作および作用を説明する。 The operation and operation of the hermetic compressor 50 configured as described above will be described below.
　本実施の形態にかかる圧縮機５０は、密閉容器１の電動機部側空間を覆う上シェル２２が、電動機部２のステータコア７と対向する部分Ａにおいて、胴シェル２１に溶接固定されている。よって、当該溶接部分と、電動機部２のステータ巻線８のコイルエンド部８ａとの間の距離が大きくなる。 圧 縮 In the compressor 50 according to the present embodiment, the upper shell 22 that covers the electric motor unit side space of the closed casing 1 is welded and fixed to the body shell 21 at a portion A of the electric motor unit 2 facing the stator core 7. Therefore, the distance between the welded portion and the coil end portion 8a of the stator winding 8 of the electric motor unit 2 increases.
　したがって、上シェル２２を胴シェル２１に溶接した時の熱が、電動機部２のステータ巻線８のコイルエンド部８ａに与える悪影響を抑制することができる。よって、ステータ巻線８の熱劣化によるレアショートを防止することができ、信頼性を向上させることができる。そして、圧縮機５０を、ステータ巻線８のコイルエンド部８ａと、上シェル２２との間の絶縁距離を確保する程度まで小型化および低背化することができる。 Therefore, it is possible to suppress the adverse effect of heat generated when the upper shell 22 is welded to the body shell 21 on the coil end portion 8 a of the stator winding 8 of the electric motor 2. Therefore, rare short circuit due to thermal deterioration of the stator winding 8 can be prevented, and reliability can be improved. The compressor 50 can be reduced in size and height to the extent that the insulation distance between the coil end portion 8a of the stator winding 8 and the upper shell 22 is ensured.
　（第２の実施の形態）
　図３は、本開示の第２の実施の形態における、密閉型の圧縮機５１の断面構成を示す図であり、図４は、同密閉型の圧縮機５１の断面構成を示す拡大図である。 (Second embodiment)
FIG. 3 is a diagram illustrating a cross-sectional configuration of the hermetic compressor 51 according to the second embodiment of the present disclosure, and FIG. 4 is an enlarged view illustrating a cross-sectional configuration of the hermetic compressor 51. .
　本実施の形態の圧縮機５１は、第１の実施の形態の圧縮機５０の構成とほぼ共通している。 圧 縮 The compressor 51 of the present embodiment has almost the same configuration as the compressor 50 of the first embodiment.
　本実施の形態の圧縮機５１は、胴シェル２１の端縁をステータ巻線８のコイルエンド部８ａ上部まで延長させて構成している。つまり、胴シェル２１の端縁部は、コイルエンド部８ａの上端とほぼ同じ高さまで延長されている。そして、上シェル２２とステータ巻線８のコイルエンド部８ａとの間には、壁２４が設けられている。 圧 縮 The compressor 51 of the present embodiment is configured by extending the edge of the shell 21 to the upper part of the coil end portion 8 a of the stator winding 8. That is, the edge of the trunk shell 21 is extended to almost the same height as the upper end of the coil end 8a. A wall 24 is provided between the upper shell 22 and the coil end 8a of the stator winding 8.
　なお、壁２４は、胴シェル２１の端縁自体を延長させることによって構成される。また、壁２４は、別の筒状部材を胴シェル２１の端縁に配置することによっても構成することができる。 The wall 24 is formed by extending the edge of the body shell 21 itself. Further, the wall 24 can also be configured by arranging another cylindrical member at the edge of the trunk shell 21.
　本実施の形態の構成によれば、上シェル２２溶接時の、コイルエンド部８ａに対する輻射熱の影響をも効果的に低減させることができ、ステータ巻線８の熱劣化によるレアショートを、より確実に防止できる。そして、圧縮機を小型・低背化することができる。 According to the configuration of the present embodiment, the influence of radiant heat on the coil end portion 8a during welding of the upper shell 22 can be effectively reduced, and rare short-circuit due to thermal deterioration of the stator winding 8 can be more reliably achieved. Can be prevented. And the compressor can be reduced in size and height.
　以上、本開示に係る密閉型圧縮機について、上述の実施の形態を用いて説明してきたが、本開示は、これらに限定されるものではなく、本開示の目的を達成する範囲内で種々変更可能である。 As described above, the hermetic-type compressor according to the present disclosure has been described using the above-described embodiments. However, the present disclosure is not limited to these, and various modifications may be made within the scope of achieving the object of the present disclosure. It is possible.
　例えば、実施の形態の密閉型圧縮機は、ロータリ式の圧縮機であるとしたが、スクロール式、およびレシプロ式など、他の方式の圧縮機であってもよい。 For example, the hermetic compressor according to the embodiment is a rotary compressor, but may be a compressor of another type such as a scroll type or a reciprocating type.
　また、密閉容器１内に設けられた、電動機部２と圧縮機構部３とは、電動機部２が上部に位置するように配置された場合を例示したが、電動機部２が下部に位置するものであってもよい。この場合には、下シェル２３を深絞り構成として各実施の形態で説明したような構成とすればよい。 The motor unit 2 and the compression mechanism unit 3 provided in the closed container 1 have been described as an example in which the motor unit 2 is arranged so as to be located at the upper part, but the motor unit 2 is arranged at the lower part. It may be. In this case, the lower shell 23 may be configured as a deep drawing configuration as described in each embodiment.
　また、密閉型圧縮機は縦型設置に限られるものではなく、横向き設置されるタイプであってもよい。 密閉 In addition, the hermetic compressor is not limited to a vertical installation, but may be a type that is installed horizontally.
　以上のように、今回開示した実施の形態はすべての点で例示であって制限的なものではない。つまり、本開示の範囲は、上述した説明ではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内での、すべての変更が含まれることが意図される。 As described above, the embodiments disclosed herein are illustrative in all aspects and not restrictive. That is, the scope of the present disclosure is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　以上のように、本開示における密閉型圧縮機は、信頼性が高く、コンパクトな密閉型圧縮機とすることができ、その圧縮形態および大きさ等に関わらず、すべての密閉型圧縮機の小型化および低背化に適用できるので、有用である。 As described above, the hermetic compressor according to the present disclosure can be a highly reliable and compact hermetic compressor, and regardless of its compression form and size, the size of all hermetic compressors can be reduced. This is useful because it can be applied to reduction in height and height.
　１　　密閉容器
　２　　電動機部
　３　　圧縮機構部
　４　　クランクシャフト
　５　　ロータ
　６　　ステータ
　７　　ステータコア
　８　　ステータ巻線
　８ａ　　コイルエンド部
　９　　上軸受け
　１０　　下軸受け
　１１　　シリンダ
　１２　　圧縮室
　１３　　ピストン
　１４　　吸入管
　１６　　容器内空間
　１７　　吐出管
　１９　　アキュームレータ
　２１　　胴シェル
　２２　　上シェル（覆シェル）
　２３　　下シェル
　２４　　壁
　５０，５１　　圧縮機
　Ａ　　部分 DESCRIPTION OF SYMBOLS 1 Closed container 2 Electric motor part 3 Compression mechanism part 4 Crankshaft 5 Rotor 6 Stator 7 Stator core 8 Stator winding 8a Coil end part 9 Upper bearing 10 Lower bearing 11 Cylinder 12 Compression chamber 13 Piston 14 Suction pipe 16 Container space 17 Discharge pipe 19 Accumulator 21 Torso shell 22 Upper shell (covered shell)
23 Lower shell 24 Wall 50,51 Compressor A part

Claims (3)

  1. 密閉容器内に、ステータコアおよびステータ巻線を有する電動機部と、圧縮機構部とが収容されて構成された密閉型圧縮機であって、
    前記密閉容器は、
    胴シェルと、前記胴シェルに溶接された覆シェルとを有し、
    前記覆シェルは、前記密閉容器の前記電動機部側の空間を覆うように構成されるとともに、前記電動機部の前記ステータコアと対向する部分までを覆い、前記電動機部の前記ステータコアと対向する部分において、前記胴シェルに溶接固定された
    密閉型圧縮機。     A hermetic compressor configured to house a motor portion having a stator core and a stator winding and a compression mechanism portion in a closed container,
    The closed container,
    Having a torso shell and a cover shell welded to the torso shell,
    The cover shell is configured to cover the space on the motor unit side of the closed container, and covers up to a portion of the motor unit facing the stator core, and at a portion of the motor unit facing the stator core, A hermetic compressor welded and fixed to the torso shell.
  2. 前記ステータ巻線のコイルエンド部と、前記覆シェルとの間に、壁が設けられた
    請求項１に記載の密閉型圧縮機。     The hermetic compressor according to claim 1, wherein a wall is provided between a coil end portion of the stator winding and the cover shell.
  3. 前記胴シェルの端縁を前記ステータ巻線の前記コイルエンド部の上部まで延長させることにより、前記壁が構成された
    請求項２に記載の密閉型圧縮機。     The hermetic compressor according to claim 2, wherein the wall is formed by extending an edge of the trunk shell to an upper portion of the coil end portion of the stator winding.
PCT/JP2019/022844 2018-06-21 2019-06-10 Sealed compressor WO2019244684A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-117493 2018-06-21
JP2018117493 2018-06-21

Publications (1)

Publication Number Publication Date
WO2019244684A1 true WO2019244684A1 (en) 2019-12-26

Family

ID=68984009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/022844 WO2019244684A1 (en) 2018-06-21 2019-06-10 Sealed compressor

Country Status (1)

Country Link
WO (1) WO2019244684A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS482090Y1 (en) * 1969-03-25 1973-01-19
JPS57204481U (en) * 1981-06-22 1982-12-25
JPS63136275U (en) * 1987-02-27 1988-09-07
US20160305431A1 (en) * 2013-12-01 2016-10-20 Aspen Compressor, Llc Compact low noise rotary compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS482090Y1 (en) * 1969-03-25 1973-01-19
JPS57204481U (en) * 1981-06-22 1982-12-25
JPS63136275U (en) * 1987-02-27 1988-09-07
US20160305431A1 (en) * 2013-12-01 2016-10-20 Aspen Compressor, Llc Compact low noise rotary compressor

Similar Documents

Publication Publication Date Title
EP2133571B1 (en) Motor-driven compressor
CN100334354C (en) Multicylinder rotary compressor
JP2003097468A (en) Rotary compressor
JP2015124700A (en) Hermetic type compressor
CN106979138B (en) Hermetic refrigerant compressor and refrigeration device
WO2019244684A1 (en) Sealed compressor
JP4289975B2 (en) Multi-stage rotary compressor
JPWO2008062789A1 (en) Rotary compressor and refrigeration cycle apparatus
JP5132351B2 (en) Hermetic compressor
JP5132352B2 (en) Hermetic compressor
JP4446923B2 (en) compressor
JP2006291787A (en) Compressor, method for assembling compressor
JP2008082223A (en) Hermetic compressor
KR101567087B1 (en) compressor
JP2009002352A (en) Compressor
JP2007100544A (en) Compressor for storing motor-driven element
JP2008141805A (en) Compressor
JP2004251150A (en) Multistage compression type rotary compressor
JP2011074814A (en) Rotary compressor and manufacturing method for the same
CN113474561B (en) Hermetic compressor
JP2005220752A (en) Compressor
JP4171321B2 (en) Multistage compression compressor
JP4371758B2 (en) Compressor
JP2006083752A (en) Motor-driven compressor
KR101130472B1 (en) Outlet valve retainer apparatus for rotary compressor

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: 19822563

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19822563

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP