US20010001638A1 - Sealed-type compressor - Google Patents

Sealed-type compressor Download PDF

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Publication number
US20010001638A1
US20010001638A1 US09/338,437 US33843799A US2001001638A1 US 20010001638 A1 US20010001638 A1 US 20010001638A1 US 33843799 A US33843799 A US 33843799A US 2001001638 A1 US2001001638 A1 US 2001001638A1
Authority
US
United States
Prior art keywords
terminal
earth
terminal box
sealed
type compressor
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.)
Abandoned
Application number
US09/338,437
Other languages
English (en)
Inventor
Katsumi Hirooka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD. reassignment MITSUBISHI HEAVY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HIROOKA, KATSUMI
Publication of US20010001638A1 publication Critical patent/US20010001638A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/223—Insulating enclosures for terminals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/803—Electric connectors or cables; Fittings therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member

Definitions

  • the present invention relates to a sealed-type compressor, and more particularly, relates to a structure of a terminal box for covering terminals which connect wiring from the electric power supply and a lead wire of a motor for the compressor.
  • a sealed-type compressor which comprises a scroll-type compressor mechanism and a motor contained in a sealing housing, and both compressor mechanism and the motor are connected by a rotating shaft.
  • a terminal for connecting the lead wire of the motor and the wiring from a power supply and a terminal box which protects the terminal are fixed.
  • FIG. 4 is a plan view showing a conventional sealed-type compressor
  • FIG. 5 is a cross-sectional view of the terminal and the terminal box
  • FIG. 6 is a diagram showing a cross-sectional view along line A-A of FIG. 5.
  • reference numeral 1 denotes a terminal
  • 2 denotes a plastic cover (a terminal box)
  • 3 denotes a sealing housing.
  • the present invention is to solve the above problems, and it is an object of the present invention to provide an inexpensive terminal box which can be used in common irrespective of whether or not the earth is necessary.
  • the first aspect of the present invention provides a sealed-type compressor, in which a terminal for connecting a lead wire from a motor and wiring from a power supply and a terminal box for covering the terminal are fixed in a sealing housing that receives a fluid compressing mechanism and a motor for driving the compressing mechanism, is provided with a fixing means which is capable of fixing both said terminal box and the earth terminal in said sealing housing.
  • the second aspect of the present invention provides the terminal box of the sealed-type compressor according to the first aspect having an opening for allowing the earth wire connected to the earth terminal pass through, and said fixing means is capable of fixing said earth terminal in said terminal box to the sealing housing.
  • the third aspect of the present invention provides the fixing means of the sealed-type compressor according to the second aspect comprising a bolt mounted vertically in the sealing housing and a nut which engages with the bolt by a screw and which fixes said terminal box to the sealing housing, wherein a male screw thread is formed on a portion of a bolt to screw said nut for fixing said earth terminal in said terminal box to the sealing housing.
  • the earth terminal is not directly fixed to the terminal box.
  • the earth terminal can be fixed to the fixing means which is used for fixing the terminal box to the sealing housing, it is possible to use in common the same terminal box irrespective of whether or not the earth wire is necessary.
  • FIG. 1 is an enlarged view of an main portion (terminal box) of a sealed-type compressor according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing a cross-sectional view along the line C-C of FIG. 1.
  • FIG. 3 shows a longitudinal cross sectional view of the sealed-type compressor as a whole.
  • FIG. 4 shows a partially exploded plan view of an example of a conventional sealed-type compressor.
  • FIG. 5 shows a cross-sectional view of the terminal box shown in FIG. 4.
  • FIG. 6 is a diagram showing a cross-sectional view along the line A-A of FIG. 5.
  • FIG. 7 shows a cross-sectional view of an example of a conventional sealed-type compressors when it is necessary to apply an earth wire.
  • FIG. 8 is a diagram showing a cross-sectional view along the line B-B of FIG. 7.
  • the scroll-type compressor mechanism C comprises a stationary scroll member 13 , an orbiting scroll member 14 , an Oldham's ring 15 for obstructing autorotation of the orbiting scroll member, a frame 16 to which the stationary scroll member 13 is fixed, and an upper bearing 17 a for supporting the rotating shaft 12 .
  • the stationary scroll member 13 is composed of an end plates 18 and an involute-shaped wrap 19 which are vertically mounted inside of the end plates 18 , and an intake hole 20 is formed in the peripheral wall and an exhaust port 22 is provided at the centers of the end plate 18 and the discharge cover 21 .
  • a discharge valve 23 for opening or closing the exhaust port 22 is also provided at the exhaust port 22 .
  • the orbiting scroll member 14 is provided with an end plates 24 and an involute-shaped wrap 25 which is vertically arranged inside the end plates 24 .
  • An eccentric bush 27 is rotatably fitted in a boss 26 , vertically provided at the rear surface of the end plates 24 , and an eccentric pin, which protrudes from the top end of the rotating shaft 12 , is rotatably inserted into a hole formed in the eccentric bush 27 .
  • the scroll-type compressor mechanism is constructed such that a plurality of sealed spaces 28 are formed by positioning the stationary scroll member 13 and the orbiting scroll member 14 into an eccentric engagement separated at a designated distance and by shifting one of the stationary scroll member and the orbiting scroll member in an orbiting direction of the orbiting scroll member by 180 degrees.
  • the stationary scroll member 13 and the orbiting scroll member 14 are mounted on the upper surface of the frame 16 fixed to the sealing housing 11 , and the rotating shaft 12 is rotatably supported by the upper bearing 17 a and the lower bearing 17 b.
  • the lead wire 31 of the motor M is connected to the inside of the terminal 32 fixed to the sealing housing 11 and the outside of the terminal 32 is protected by the plastic cover 33 (the terminal box).
  • the terminal 32 and the plastic cover 33 are constructed by the same structure as the conventional structure and an opening 33 a is formed in the plastic cover 33 for admitting the wiring from the power supply and the earth wire 34 .
  • a screw is formed from the base to the top of the bolt 35 welded to the sealing housing 11 such that the nut 36 for fixing the plastic cover 33 to the sealing housing 11 and the nut 38 for connecting the earth terminal to the bolt 35 are engaged to the screw of the bolt.
  • connection is simply achieved by passing the earth terminal through the bolt and by fixing it by the nut 38 .
  • the wiring from the power supply is connected with the terminal 32 and, while the wiring and the earth wire 34 pass through the opening 33 a, the plastic cover 33 is abutted to the sealing housing 11 by setting the plastic cover 33 to pass over the bolt 35 .
  • the plastic cover 33 is fixed to the sealing housing 11 by screwing the nut 36 into the bolt 35 .
  • the sealed-type compressor according to an embodiment of the present invention, it is possible to use the same terminal box (plastic cover 33 ) as the conventional terminal box in any cases irrespective of whether or not the earth is necessary.
  • the conventional terminal box (plastic cover 33 ) has been used when the earth is not necessary.
  • the sealed-type compressor of the present invention since almost the same terminal box as the conventional one can be used in any cases irrespective of whether or not the earth is necessary, the sealed-type compressor of the present invention does not need to provide another type of the terminal box and reduced cost is realized.
  • the earth terminal is not directly fixing the terminal box of the sealing housing, but the earth terminal is designed such that it can be assembled with a fixing means for fixing the terminal box to the sealing housing.
  • the same terminal box can be used irrespective of whether or not the earth is necessary, the sealed-type compressor of the present invention does not need to provide another type of the terminal box, and reduced cost is realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
US09/338,437 1998-07-17 1999-06-23 Sealed-type compressor Abandoned US20010001638A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10204074A JP3025236B2 (ja) 1998-07-17 1998-07-17 密閉型圧縮機
JP10-204074 1998-07-17

Publications (1)

Publication Number Publication Date
US20010001638A1 true US20010001638A1 (en) 2001-05-24

Family

ID=16484350

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/338,437 Abandoned US20010001638A1 (en) 1998-07-17 1999-06-23 Sealed-type compressor

Country Status (5)

Country Link
US (1) US20010001638A1 (zh)
EP (1) EP0973233B1 (zh)
JP (1) JP3025236B2 (zh)
CN (1) CN1087402C (zh)
DE (1) DE69904120T2 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040208760A1 (en) * 2003-04-15 2004-10-21 Yap Zer Kai Terminal block assembly for a hermetic compressor
US20120049672A1 (en) * 2010-08-31 2012-03-01 Grosskopf Andrew P Terminal block cover with nut retention feature
US8328566B1 (en) * 2011-07-08 2012-12-11 Danfoss Scroll Technologies, Llc Terminal connection for sealed compressor
US20130011279A1 (en) * 2011-07-08 2013-01-10 Lamar Wilson Thibodeaux Secure connection terminal for hermetic compressor
US20130140927A1 (en) * 2011-03-31 2013-06-06 Komatsu Ltd. Generator Motor and Work Machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3600781B2 (ja) * 2000-06-06 2004-12-15 株式会社日立製作所 密閉形電動圧縮機用保護装置、並びにこれを用いた密閉形電動圧縮機及び冷却システム
JP2008303738A (ja) * 2007-06-05 2008-12-18 Daikin Ind Ltd 流体機械
CN102594006A (zh) * 2011-01-10 2012-07-18 伍宏斌 一种振动电机接线盒用绝缘垫板
CN104265638B (zh) * 2014-09-18 2016-08-31 乔建设 低电压强电流进排气口可变位式电动涡旋压缩机
CN107514364B (zh) * 2016-06-18 2021-12-07 上海海立电器有限公司 一种压缩机
CN107100846B (zh) 2017-04-28 2020-05-26 上海海立新能源技术有限公司 一种车用涡旋压缩机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT396390B (de) * 1987-11-16 1993-08-25 Mayreder Kraus & Co Ing Gebirgsanker
US4984973A (en) * 1990-03-21 1991-01-15 Tecumseh Products Company Hermetic motor compressor unit having a hermetic terminal with electrically insulating anti-tracking cap
JP2543309Y2 (ja) 1990-07-31 1997-08-06 岩崎電気株式会社 蛍光灯用安定器の取付構造
US5173057A (en) * 1992-02-07 1992-12-22 Tecumseh Products Company Permanent protective cover
FR2689322B1 (fr) * 1992-03-24 1994-05-13 Valeo Equipements Elect Moteur Dispositif a borne de prise de courant pour alternateur de vehicule automobile.
JP3105715B2 (ja) * 1993-09-30 2000-11-06 三菱重工業株式会社 スクロ−ル型圧縮機
TW372371B (en) * 1995-12-15 1999-10-21 Carrier Corp Electrical connector plug

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040208760A1 (en) * 2003-04-15 2004-10-21 Yap Zer Kai Terminal block assembly for a hermetic compressor
US20120049672A1 (en) * 2010-08-31 2012-03-01 Grosskopf Andrew P Terminal block cover with nut retention feature
US8313343B2 (en) * 2010-08-31 2012-11-20 Hamilton Sundstrand Corporation Terminal block cover with nut retention feature
US8435071B2 (en) 2010-08-31 2013-05-07 Hamilton Sundstrand Corporation Terminal block cover with nut retention feature
US20130140927A1 (en) * 2011-03-31 2013-06-06 Komatsu Ltd. Generator Motor and Work Machine
US9160208B2 (en) * 2011-03-31 2015-10-13 Komatsu Ltd. Generator motor and work machine
US8328566B1 (en) * 2011-07-08 2012-12-11 Danfoss Scroll Technologies, Llc Terminal connection for sealed compressor
US20130011279A1 (en) * 2011-07-08 2013-01-10 Lamar Wilson Thibodeaux Secure connection terminal for hermetic compressor
US8801400B2 (en) * 2011-07-08 2014-08-12 Danfoss Scroll Technologies Llc Secure connection terminal for hermetic compressor

Also Published As

Publication number Publication date
EP0973233B1 (en) 2002-11-27
JP3025236B2 (ja) 2000-03-27
CN1087402C (zh) 2002-07-10
EP0973233A1 (en) 2000-01-19
DE69904120T2 (de) 2003-07-17
CN1242477A (zh) 2000-01-26
JP2000034990A (ja) 2000-02-02
DE69904120D1 (de) 2003-01-09

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MITSUBISHI HEAVY INDUSTRIES, LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HIROOKA, KATSUMI;REEL/FRAME:010398/0083

Effective date: 19990616

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION