WO2020059614A1 - 電動圧縮機 - Google Patents

電動圧縮機 Download PDF

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Publication number
WO2020059614A1
WO2020059614A1 PCT/JP2019/035809 JP2019035809W WO2020059614A1 WO 2020059614 A1 WO2020059614 A1 WO 2020059614A1 JP 2019035809 W JP2019035809 W JP 2019035809W WO 2020059614 A1 WO2020059614 A1 WO 2020059614A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
compressor
capacitor
cushioning material
electric compressor
Prior art date
Application number
PCT/JP2019/035809
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
吉田　浩
沙織 栗原
亨 伊東
将宜 松田
真之 下田
Original Assignee
サンデン・オートモーティブコンポーネント株式会社
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 サンデン・オートモーティブコンポーネント株式会社 filed Critical サンデン・オートモーティブコンポーネント株式会社
Priority to DE112019004704.3T priority Critical patent/DE112019004704T5/de
Priority to CN201980061173.5A priority patent/CN112673173A/zh
Publication of WO2020059614A1 publication Critical patent/WO2020059614A1/ja

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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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • F04B39/0027—Pulsation and noise damping means

Definitions

  • the present invention relates to an electric compressor.
  • Patent Document 1 proposes that a power board is fixed to a plurality of fixed seats by screws in an inverter accommodating portion of an electric compressor.
  • An object of the present invention is to improve vibration resistance at low cost.
  • the electric compressor according to one embodiment of the present invention includes: With a substrate provided to drive and control the electric motor built in the compressor, On both sides of the substrate, a plurality of capacitors each having a pedestal are surface-mounted.
  • the vibration resistance can be improved at a lower cost.
  • FIG. 1 is an external view of the compressor.
  • the compressor 11 (electric compressor) is, for example, an electric scroll compressor used in a refrigerant circuit of a car air conditioner. That is, when driven by a built-in electric motor mounted on a vehicle, the refrigerant sucks, compresses, and discharges the refrigerant.
  • An inverter accommodating portion 12 (housing) is integrally formed on the front side in the axial direction, and is sealed by a front cover 13.
  • a connector 14 for a low-voltage circuit and a connector 15 for a high-voltage circuit are provided on the outer wall of the inverter accommodating section 12.
  • FIG. 2 is a diagram illustrating a substrate.
  • a substrate 21 on which an inverter for driving and controlling an electric motor is formed is housed inside the inverter housing 12.
  • the thickness of the substrate 21 is, for example, about 1.6 to 1.8 mm.
  • (a) shows one surface of the substrate 21,
  • (b) shows the side surface of the substrate 21, and
  • (c) shows the other surface of the substrate 21.
  • a plurality of capacitors 22 are surface-mounted on one surface of the substrate 21.
  • an example in which seven are mounted is shown, and they are densely arranged.
  • a plurality of capacitors 22 are surface-mounted on the other surface of the substrate 21.
  • an example in which 11 are mounted is shown, and they are arranged densely.
  • the capacitor 22 forms a smoothing / filter circuit connected in parallel to the power supply line, and is, for example, an aluminum solid electrolytic capacitor.
  • the capacitor 22 is arranged such that the mounting region on one surface and the mounting region on the other surface overlap in plan view.
  • FIG. 3 is a cross-sectional view showing a housed state of the substrate.
  • the board 21 is housed in the inverter housing 12 and is fixed by screws.
  • lands 23 for surface mounting the capacitor 22 are formed on both sides of the substrate 21, lands 23 for surface mounting the capacitor 22 are formed.
  • Two lands 23 are provided for one capacitor 22.
  • the capacitor 22 has a pedestal 24, and two terminals formed on the back surface of the pedestal 24 are soldered to the corresponding lands 23. Since the capacitor 22 is arranged so that the mounting area on one surface and the mounting area on the other surface overlap, the land 23 on one surface and the land 23 on the other surface overlap. Therefore, at the position where the capacitor 22 is mounted, the thickness tb of the substrate 21 is increased by two lands.
  • a cushioning material 31 (first cushioning material) is sandwiched between the capacitor 22 mounted on the surface of the substrate 21 near the compressor 11 and the partition 16 (casing) in a compressed state.
  • a cushioning material 32 (second cushioning material) is sandwiched between a capacitor 22 mounted on a surface of the substrate 21 far from the compressor 11 and the front cover 13 (housing) in a compressed state.
  • the cushioning materials 31 and 32 are formed of a gel having high thermal conductivity.
  • the thickness t1 of the cushioning material 31 is set to be larger than the thickness t2 of the cushioning material 32.
  • the cushioning materials 31 and 32 also function as heat dissipation sheets. Since the capacitor 22 has an allowable load that can be pressed, the reaction force of the cushioning materials 31 and 32 is set to be less than the allowable load of the capacitor 22.
  • a filter case in which a capacitor is accommodated and a resin is cast is provided on a substrate to take measures against vibration.
  • the cushioning material 31 is sandwiched between the capacitor 22 and the partition 16 mounted on the surface of the substrate 21 on the side closer to the compressor 11.
  • a cushioning material 32 is sandwiched between the front cover 13 and the capacitor 22 mounted on the surface of the substrate 21 far from the compressor 11. The vibration resistance of the capacitor 22 can be ensured by the cushioning members 31 and 32.
  • the buffer members 31 and 32 are only sandwiched, the filter case and the step of casting resin can be omitted.
  • the thickness t1 of the cushioning material 31 is larger than the thickness t2 of the cushioning material 32. Therefore, mainly the buffer material 31 can absorb a dimensional error and an assembly error in the direction perpendicular to the surface of the substrate 21.
  • the cushioning material 31 is cooled by the refrigerant across the partition 16, while the cushioning material 32 is cooled by the outside air temperature across the front cover 13.
  • the thinner the cushioning material the higher the heat radiation property, but the partition wall 16 has a higher cooling capacity than the front cover 13, and the thickness t1 of the cushioning material 31 can be increased. Therefore, the capacitor 22 mounted on the surface of the substrate 21 closer to the compressor 11 and the capacitor 22 mounted on the surface of the substrate 21 farther from the compressor 11 have the same heat radiation performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
PCT/JP2019/035809 2018-09-21 2019-09-12 電動圧縮機 WO2020059614A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112019004704.3T DE112019004704T5 (de) 2018-09-21 2019-09-12 Elektrisch angetriebener verdichter
CN201980061173.5A CN112673173A (zh) 2018-09-21 2019-09-12 电动压缩机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-177608 2018-09-21
JP2018177608A JP7359534B2 (ja) 2018-09-21 2018-09-21 電動圧縮機

Publications (1)

Publication Number Publication Date
WO2020059614A1 true WO2020059614A1 (ja) 2020-03-26

Family

ID=69888748

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/035809 WO2020059614A1 (ja) 2018-09-21 2019-09-12 電動圧縮機

Country Status (4)

Country Link
JP (1) JP7359534B2 (zh)
CN (1) CN112673173A (zh)
DE (1) DE112019004704T5 (zh)
WO (1) WO2020059614A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011157873A (ja) * 2010-02-01 2011-08-18 Mitsubishi Heavy Ind Ltd インバータ一体型電動圧縮機
JP2016034205A (ja) * 2014-07-31 2016-03-10 株式会社デンソー 駆動装置、および、これを用いた電動パワーステアリング装置
JP2016535437A (ja) * 2013-06-27 2016-11-10 ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフトＺｆ Ｆｒｉｅｄｒｉｃｈｓｈａｆｅｎ Ａｇ 負荷を制御する電気回路、および負荷を制御する電気回路の製造方法
WO2017221854A1 (ja) * 2016-06-22 2017-12-28 サンデン・オートモーティブコンポーネント株式会社 電装部品の設置構造及びそれを備えたインバータ一体型電動圧縮機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012042971A1 (ja) * 2010-09-29 2012-04-05 アイシン精機株式会社 電動ポンプ
CN104201865B (zh) * 2014-08-06 2017-02-15 歌尔科技有限公司 电子系统的降噪方法、电子系统和电压转换电路
JP6571358B2 (ja) * 2015-03-24 2019-09-04 三菱重工サーマルシステムズ株式会社 電力変換用回路基板及び電動圧縮機
CN206947183U (zh) * 2017-07-19 2018-01-30 珠海华冠电容器有限公司 一种带有抗振动底座的铝电解电容器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011157873A (ja) * 2010-02-01 2011-08-18 Mitsubishi Heavy Ind Ltd インバータ一体型電動圧縮機
JP2016535437A (ja) * 2013-06-27 2016-11-10 ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフトＺｆ Ｆｒｉｅｄｒｉｃｈｓｈａｆｅｎ Ａｇ 負荷を制御する電気回路、および負荷を制御する電気回路の製造方法
JP2016034205A (ja) * 2014-07-31 2016-03-10 株式会社デンソー 駆動装置、および、これを用いた電動パワーステアリング装置
WO2017221854A1 (ja) * 2016-06-22 2017-12-28 サンデン・オートモーティブコンポーネント株式会社 電装部品の設置構造及びそれを備えたインバータ一体型電動圧縮機

Also Published As

Publication number Publication date
JP2020045894A (ja) 2020-03-26
CN112673173A (zh) 2021-04-16
DE112019004704T5 (de) 2021-06-10
JP7359534B2 (ja) 2023-10-11

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