US20100254833A1 - Terminal device for electric compressor - Google Patents

Terminal device for electric compressor Download PDF

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Publication number
US20100254833A1
US20100254833A1 US12/743,156 US74315608A US2010254833A1 US 20100254833 A1 US20100254833 A1 US 20100254833A1 US 74315608 A US74315608 A US 74315608A US 2010254833 A1 US2010254833 A1 US 2010254833A1
Authority
US
United States
Prior art keywords
terminal device
electric compressor
motor
lubricant
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/743,156
Other languages
English (en)
Inventor
Masanori Taguchi
Masahiko Osaka
Shigeyuki Koyama
Eiji Kobayashi
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.)
Sanden Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to SANDEN CORPORATION reassignment SANDEN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOBAYASHI, EIJI, KOYAMA, SHIGEYUKI, OSAKA, MASAHIKO, TAGUCHI, MASANORI
Publication of US20100254833A1 publication Critical patent/US20100254833A1/en
Abandoned legal-status Critical Current

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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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • 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
    • 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
    • F04C18/0207—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 both members having co-operating elements in spiral form
    • F04C18/0215—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 both members having co-operating elements in spiral form where only one member is moving
    • 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
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/803—Electric connectors or cables; Fittings therefor

Definitions

  • the present invention relates to a terminal device for an electric compressor, and specifically, to a terminal device for an electric compressor which can change a kind of lubricant contained in fluid to be compressed (for example, refrigerant) to a cheap one, and even when the lubricant is changed, can ensure good insulating and electric communication properties and can be constructed inexpensively.
  • a kind of lubricant contained in fluid to be compressed for example, refrigerant
  • a structure has been known wherein power supply to a motor built in an electric compressor is carried out using a sealed terminal device (also called as a hermetic terminal) (for example, Patent document 1).
  • a sealed terminal device also called as a hermetic terminal
  • Patent document 1 A structure has been known wherein power supply to a motor built in an electric compressor is carried out using a sealed terminal device (also called as a hermetic terminal) (for example, Patent document 1).
  • a sealed terminal device also called as a hermetic terminal
  • hermetic terminal device 104 in which a plurality of terminals 103 are held by terminal plate 102 so as to extend through the plate 102 at a hermetic condition (for example, a hermetic condition via glass), is attached at a predetermined position of compressor housing 101 , to the inner end of each hermetic terminal 103 of this hermetic terminal device 104 , each input female terminal 106 of cluster 107 , in which a plurality of input female terminals 106 are held in resin housing 105 , is electrically connected by fitting, etc., and power is supplied to a coil wire for a stator of the built-in motor through electric wire 108 for power supply connected to the input female terminal 106 .
  • a hermetic condition for example, a hermetic condition via glass
  • an object of the present invention is to provide a terminal device for an electric compressor which can exhibit a sufficiently high insulation performance even in case where polyalkylene glycol-based oil is used as lubricant contained in fluid to be compressed, which can easily employ a structure using no cluster, and which is constructed in a simple structure and inexpensively while its insulation performance is improved.
  • an electro-deposition varnish can be used.
  • an electro-deposition varnish By using an electro-deposition varnish, a layer for insulation may be easily formed at a uniform membrane thickness, and a desired insulation property can be easily obtained over a desirable range.
  • the terminal device for an electric compressor can be applied to any electric compressor requiring improvement of insulation performance and simplification of the structure for the terminal device portion, in particular, it is suitable for a compressor used in an air conditioning system for vehicles which is manufactured at a mass production style and which is required to be reduced in cost as a whole and for which reduction in cost of used lubricant is strongly required.
  • the terminal device for an electric compressor by covering a predetermined portion of the terminal member with an insulating varnish, it becomes possible to exhibit a sufficiently high insulation performance even when polyalkylene glycol-based oil is used as lubricant contained in fluid to be compressed, and a structure having no cluster may be easily employed. Therefore, a terminal device for an electric compressor having a desired insulation performance can be provided while its structure may be realized easily and inexpensively.
  • FIG. 1 is vertical sectional view showing an example of an electric compressor applied with a terminal device for an electric compressor according to the present invention.
  • FIG. 3 is a schematic side view showing an example of connection of a lead wire for power supply to the terminal member depicted in FIG. 2 .
  • FIG. 4 is a schematic diagram of a conventional terminal device.
  • Motor 9 comprises a stator 11 and rotor 12 , and rotational shaft 10 is rotated integrally with rotor 12 .
  • the fluid to be compressed contains lubricant which is polyalkylene glycol-based oil, and this lubricant-containing fluid to be compressed is passed also through a container part 13 for the built-in motor 9 .
  • a terminal device 15 is provided on a side wall 14 of compressor housing 8 , and a predetermined power is supplied to motor 9 through terminal device 15 from a circuit part for power supply 16 connected to an external power source (not shown).
  • This power supply is performed through a terminal member for power supply 17 to motor 9 , which extends hermetically through a partition wall (in this embodiment, side wall 14 of compressor housing 8 ) that is disposed between container part 13 for motor 9 for driving the compression mechanism present with the lubricant containing fluid to be compressed and circuit part for power supply 16 to motor 9 and that isolates the both parts, and a lead wire for power supply 17 for motor 9 connected to the inner end of the terminal member 17 (the motor container part-side end).
  • the core wire of lead wire for power supply 18 extends toward stator 11 so as to form the coil of stator 11 of motor 9 .
  • the above-described terminal member 17 is formed as a bolt-like member capable of being fixed at the side of circuit part for power supply 16 .
  • the electric communication portion of this terminal member 17 extending between the two parts of motor container part 13 and power supply circuit part 16 is covered with an insulating varnish 19 comprising an electro-deposition varnish, and the outer surface of terminal member 17 in this section is completely insulated from the circumferences. Therefore, particularly, the inner end side portion of and its vicinity of terminal member 17 are ensured with a high insulation performance even if they come into contact with the oil contained in the fluid to be compressed.
  • the terminal device for an electric compressor thus constructed, by the structure where the outer surface of the predetermined portion of terminal member 17 is covered with insulating varnish 19 , even when polyalkylene glycol-based oil is used as lubricant contained in fluid to be compressed, it becomes possible to exhibit a sufficiently high insulation performance against the circumferences of terminal member 17 . Further, by enhancing the insulation property at this portion and connecting the end portion of coil wire 21 of stator 11 directly to the inner end of terminal member 17 , it becomes possible to easily achieve a structure in which a cluster in the conventional structure is not used. Thus, while employing an extremely simple structure, a terminal device for an electric compressor exhibiting a desired insulation performance can be realized inexpensively.
  • the terminal device for an electric compressor according to the present invention can be applied to any electric compressor incorporating therein a motor, and in particular, it is suitable for a compressor used in an air conditioning system for vehicles which is manufactured at a mass production style and which is required to be reduced in cost as the whole of the compressor and for which reduction in cost of used lubricant is required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compressor (AREA)
  • Motor Or Generator Frames (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
US12/743,156 2007-11-16 2008-11-14 Terminal device for electric compressor Abandoned US20100254833A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007-297926 2007-11-16
JP2007297926A JP4916421B2 (ja) 2007-11-16 2007-11-16 電動圧縮機の端子装置
PCT/JP2008/070777 WO2009063979A1 (ja) 2007-11-16 2008-11-14 電動圧縮機の端子装置

Publications (1)

Publication Number Publication Date
US20100254833A1 true US20100254833A1 (en) 2010-10-07

Family

ID=40638825

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/743,156 Abandoned US20100254833A1 (en) 2007-11-16 2008-11-14 Terminal device for electric compressor

Country Status (5)

Country Link
US (1) US20100254833A1 (ja)
EP (1) EP2221477A4 (ja)
JP (1) JP4916421B2 (ja)
CN (1) CN101868624A (ja)
WO (1) WO2009063979A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5609900B2 (ja) * 2012-02-02 2014-10-22 株式会社豊田自動織機 電動圧縮機
FR2995368B1 (fr) * 2012-09-13 2014-08-29 Valeo Japan Co Ltd Boitier d'un compresseur electrique et compresseur electrique comrenant un tel boitier
EP3421798B1 (en) * 2016-02-22 2020-11-11 Agc Inc. Compressor and heat cycle system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5984647A (en) * 1997-04-03 1999-11-16 Mitsubishi Denki Kabushiki Kaisha Process for producing a hermetic electric compressor
US6005312A (en) * 1994-07-14 1999-12-21 Matsushita Electric Industrial Co., Ltd. High speed, high torque multipole brushless motor
JP2003129983A (ja) * 2001-10-26 2003-05-08 Sanden Corp 電動式圧縮機
US6619933B2 (en) * 2000-08-29 2003-09-16 Sanden Corporation Motor-driven compressors
US7097501B2 (en) * 2003-11-25 2006-08-29 Schlumberger Technology Corporation Micro coated electrical feedthru

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252394A (en) * 1979-05-16 1981-02-24 Tecumseh Products Company Hermetic compressor motor terminal
US7038339B2 (en) * 2004-03-31 2006-05-02 Sauer-Danfoss Inc. Method and means of sealing an electrical conductor through the housing of a fluid filled motor
JP2006042409A (ja) 2004-07-22 2006-02-09 Denso Corp モータ一体型コンプレッサ
JP5013714B2 (ja) * 2005-02-08 2012-08-29 サンデン株式会社 電動圧縮機
JP2010129983A (ja) * 2008-12-01 2010-06-10 Tokyo Electron Ltd 成膜装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6005312A (en) * 1994-07-14 1999-12-21 Matsushita Electric Industrial Co., Ltd. High speed, high torque multipole brushless motor
US5984647A (en) * 1997-04-03 1999-11-16 Mitsubishi Denki Kabushiki Kaisha Process for producing a hermetic electric compressor
US6619933B2 (en) * 2000-08-29 2003-09-16 Sanden Corporation Motor-driven compressors
JP2003129983A (ja) * 2001-10-26 2003-05-08 Sanden Corp 電動式圧縮機
US7097501B2 (en) * 2003-11-25 2006-08-29 Schlumberger Technology Corporation Micro coated electrical feedthru

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Machine Translation of Japanese Patent JP 2003-129983 to Kurihara et al *

Also Published As

Publication number Publication date
EP2221477A1 (en) 2010-08-25
JP2009121386A (ja) 2009-06-04
WO2009063979A1 (ja) 2009-05-22
CN101868624A (zh) 2010-10-20
EP2221477A4 (en) 2017-03-29
JP4916421B2 (ja) 2012-04-11

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SANDEN CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAGUCHI, MASANORI;OSAKA, MASAHIKO;KOYAMA, SHIGEYUKI;AND OTHERS;REEL/FRAME:024918/0723

Effective date: 20100611

STCB Information on status: application discontinuation

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