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An inverter-integrated electric compressor includes an inverter housing portion, an inverter device including a substrate having an inverter circuit mounted thereon, the inverter device being integrally incorporated in the inverter housing portion, and a busbar assembly formed by a UVW busbar covered by a resin case, the UVW busbar conducting AC power converted by the inverter circuit from the substrate side to a motor terminal. In such a compressor, the busbar assembly includes an adhering partition adhered to an end surface of the substrate using an adhesive, the adhering partition being provided in an upright manner on a lower surface of the resin case of the busbar assembly; a height (H) and a gap (S) of the adhering partition relative to the end surface of the substrate are set as appropriate; and the adhering partition and the end surface of the substrate are adhered to each other using the adhesive.

Titel:	Inverter-integrated electric compressor
Autor/in / Beteiligte Person:	MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
Link:	View record in USPTO Patent Grants (Volltext)
Veröffentlichung:	2018
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Grants Sprachen: English Patent Number: 10132,535 Publication Date: November 20, 2018 Appl. No: 15/109757 Application Filed: January 22, 2015 Assignees: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. (Tokyo, JP) Claim: 1. An inverter-integrated electric compressor comprising: a housing; an inverter housing portion provided to the housing; an inverter device including a substrate having an inverter circuit mounted thereon, the inverter device being integrally incorporated in the inverter housing portion; and a busbar assembly formed by a UVW busbar covered by a resin case, the UVW busbar being configured to conduct AC power converted by the inverter circuit from the substrate side to a motor terminal provided in the inverter housing portion; the busbar assembly including an adhering partition to be adhered to an end surface of the substrate using an adhesive, the adhering partition being provided in an upright manner on a lower surface of the resin case; a height and a gap of the adhering partition relative to the end surface of the substrate being set as appropriate; and the gap between the adhering partition and the end surface of the substrate being adhered directly and integrated to each other using the adhesive. Claim: 2. The inverter-integrated electric compressor according to claim 1 , wherein the resin case includes a partition wall that has a predetermined height to block a flow of the adhesive, the partition wall being provided on the lower surface of the resin case, between a position where the adhering partition is provided in an upright manner and a connector terminal of the busbar assembly to be inserted into the motor terminal. Claim: 3. The inverter-integrated electric compressor according to claim 1 , wherein the substrate has one side that is fixedly supported by the inverter housing portion via the busbar assembly and the motor terminal, and another two sides adjacent to the one side that are fixedly supported by the inverter housing portion via a coil and a capacitor that constitute a filter circuit of the inverter device, and a terminal group of a plurality of semiconductor switching elements that constitute the inverter circuit. Claim: 4. The inverter-integrated electric compressor, comprising: a housing; an inverter housing portion provided to the housing; an inverter device including a substrate having an inverter circuit mounted thereon, the inverter device being integrally incorporated in the inverter housing portion; and a busbar assembly formed by a UVW busbar covered by a resin case, the UVW busbar being configured to conduct AC power converted by the inverter circuit from the substrate side to a motor terminal provided in the inverter housing portion; the busbar assembly including an adhering partition to be adhered to an end surface of the substrate using an adhesive, the adhering partition being provided in an upright manner on a lower surface of the resin case; a height and a gap of the adhering partition relative to the end surface of the substrate being set as appropriate; and the adhering partition and the end surface of the substrate being adhered to each other using the adhesive, wherein a plurality of locking tabs are provided at predetermined intervals on the lower surface of the resin case of the busbar assembly where the adhering partition is provided in an upright manner, the locking tabs including fitting portions that fit together with an end portion of the substrate. Claim: 5. The inverter-integrated electric compressor according to claim 4 , wherein the lower surface of the resin case of the busbar assembly where the adhering partition is provided in an upright manner is formed separately as a cover member, the cover member is assembled to the resin case by the locking tabs integrally formed with the resin case and passing through the cover member, and the adhering partition is adhered to the end surface of the substrate and to the locking tabs via the adhesive. Claim: 6. The inverter-integrated electric compressor according to claim 4 , wherein the resin case includes a partition wall that has a predetermined height to block a flow of the adhesive, the partition wall being provided on the lower surface of the resin case, between a position where the adhering partition is provided in an upright manner and a connector terminal of the busbar assembly to be inserted into the motor terminal. Claim: 7. The inverter-integrated electric compressor according to claim 4 , wherein the substrate has one side that is fixedly supported by the inverter housing portion via the busbar assembly and the motor terminal, and another two sides adjacent to the one side that are fixedly supported by the inverter housing portion via a coil and a capacitor that constitute a filter circuit of the inverter device, and a terminal group of a plurality of semiconductor switching elements that constitute the inverter circuit. Patent References Cited: 2003/0200761 October 2003 Funahashi et al. ; 2007/0231165 October 2007 Koide et al. ; 2008/0116838 May 2008 Hattori ; 2010/0018243 January 2010 Tanaka ; 2011/0217190 September 2011 Mizuno et al. ; 2011/0236235 September 2011 Hattori et al. ; 2011/0261588 October 2011 Hattori ; 2013/0224050 August 2013 Nakagami ; 101187364 May 2008 ; 102144354 August 2011 ; 102216616 October 2011 ; 103119842 May 2013 ; 2003-259656 September 2003 ; 2007-263061 October 2007 ; 2007-295639 November 2007 ; 2011-163231 August 2011 ; 2011-220308 November 2011 ; 4898931 March 2012 ; 2012-120279 June 2012 ; 2012-193660 October 2012 ; 2014-173466 September 2014 Other References: Chinese Office Action and Search Report issued in Chinese Application No. 201580004262,8 dated Feb. 7, 2017, together with English translations thereof. cited by applicant Assistant Examiner: Depew, Keith Primary Examiner: Nguyen, Hoa C Attorney, Agent or Firm: Birch, Stewart, Kolasch & Birch, LLP.

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Inverter-integrated electric compressor