WO2019163405A1 - Compresseur électrique - Google Patents

Compresseur électrique Download PDF

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Publication number
WO2019163405A1
WO2019163405A1 PCT/JP2019/002598 JP2019002598W WO2019163405A1 WO 2019163405 A1 WO2019163405 A1 WO 2019163405A1 JP 2019002598 W JP2019002598 W JP 2019002598W WO 2019163405 A1 WO2019163405 A1 WO 2019163405A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter circuit
housing
inverter
support member
terminal
Prior art date
Application number
PCT/JP2019/002598
Other languages
English (en)
Japanese (ja)
Inventor
幹生 小林
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
Publication of WO2019163405A1 publication Critical patent/WO2019163405A1/fr

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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
    • 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

Definitions

  • the present invention relates to an electric compressor in which an inverter circuit section for supplying power to a motor and a filter circuit section for absorbing a high-frequency component of a switching current are mounted in an inverter housing section formed in a housing.
  • the present invention has been made to solve the conventional technical problem, and an object of the present invention is to provide an electric compressor in which the fluctuation of the filter circuit section that absorbs the high-frequency component of the switching current is reduced.
  • the electric compressor according to a second aspect of the invention is characterized in that, in the above invention, the end of the sleeve on the housing side is located in the center of the filter circuit portion in the height direction or in a region near the center.
  • the filter circuit portion is filled with a thermosetting resin in the support member in a state in which the electric component is accommodated in the support member.
  • the support member is integrated, and one end of the support member is soldered to the filter circuit board, and the other end is integrally resin-molded with a connection terminal that is electrically connected to the inverter circuit portion with a screw.
  • the electric compressor according to a fourth aspect of the present invention is characterized in that, in each of the above inventions, the support member has a positioning pin with the housing.
  • a housing including a motor, an inverter circuit unit for supplying power to the motor, and a filter circuit unit for absorbing high-frequency components of the switching current, the inverter circuit unit and the filter circuit unit
  • the filter circuit portion includes a filter circuit board on which the electrical components are mounted, and a resin support member that houses the electrical components.
  • the support member is integrally resin-molded with a sleeve of a predetermined length dimension through which a bolt for fixing the filter circuit portion to the housing is inserted, and the filter circuit portion is in a state where the sleeve is in contact with the housing.
  • the filter circuit portion when the vibration is applied by positioning the end portion on the housing side of the sleeve in the center in the height direction of the filter circuit portion or a region near the center as in the invention of claim 2. Can be effectively reduced.
  • the filter circuit board and the support member are integrated and supported by filling the support member with a thermosetting resin in a state where the electrical components are accommodated in the support member of the filter circuit portion as in the invention of claim 3.
  • connection terminal one end of which is soldered to the filter circuit board, is resin-molded integrally with the support member, it has a highly rigid structure against vibration, and it is soldered after the filter circuit section is fixed to the housing. There is no stress on the part. Further, by providing the support member with a positioning pin for the housing as in the invention of claim 4, the positioning of the filter circuit portion and the housing can be easily performed.
  • FIG. 7 is a rear perspective view of the sleeve assembly of FIG. 6.
  • FIG. 15 is an enlarged perspective view of a state in which a power supply side connection terminal is attached to the filter circuit unit of FIG. 14.
  • FIG. 30 is a perspective view of a filter circuit portion of the inverter accommodating portion with the power supply side connection terminal shown in FIG. 29 attached.
  • the stator coil 27 is connected.
  • the power supply terminal and the ground terminal are the filter circuit unit 4, the power supply side connection terminal (connection terminal) 31 respectively provided at the tips of the two wires 98 drawn from the high power connector 29, and It is electrically connected to the power harness through the high power connector 29 and the like.
  • (2-1) Configuration of sleeve assembly 18 Next, the configuration of the sleeve assembly 18 will be described with reference to FIGS.
  • the sleeve assembly 18 is provided with the five terminal connection portions 19, 20, 21, 22, and 23 described above, and the sleeve assembly 18 further has six sleeves 32.
  • Each of the terminal connecting portions 19 to 23 is composed of a male male screw as shown in FIG.
  • the terminal connection portions 19 to 21 are arranged at positions on the lead terminals 24 to 26 side, and the terminal connection portions 22 and 23 are arranged at positions on the filter circuit portion 4 side. Further, each sleeve 32 is disposed in the peripheral portion of the sleeve assembly 18, and upper and lower ends are exposed and opened on the front and back surfaces of the sleeve assembly 18, and a bolt 36 for fixing to the housing 2 described later can be inserted. . In addition, at predetermined positions on the surface of the sleeve assembly 18, three positioning pins 37 for the inverter control board 17 are integrally formed and protruded by hard resin.
  • a male screw 47 is press-fitted and fixed to each fitting hole 44 from the back side, and is erected on the installation plate 43.
  • Each male screw 47 has a thread groove portion 48 of each male screw 47 protruding from the surface of the installation plate 43 in a fitted state, and includes a countersink portion 46 and a portion other than the screw groove portion 48 of each male screw 47.
  • the resin coating material 49 is molded on the outer surface of the male screw 47. In this state, the resin coating material 49 covers each male screw 47 with the screw groove portion 48 of the male screw 47 exposed (FIG. 11).
  • a through hole 51 is formed in each power switching element 13.
  • each male screw 47 erected on the installation plate 43 and the resin coating material 49 that covers each male screw 47 in a state where the screw groove portion 48 of each male screw 47 is exposed are provided.
  • the switching element 13 and the insulating sheet 52 are arranged on the installation plate 43 in a state where the male screw 47 penetrates, and are fixed to the installation plate 43 by a nut 54 that is screwed into the screw groove portion 48, whereby each power switching element 13 is Since the power module 14 is configured by being mounted on the installation plate 43 via the insulating sheet 52, each male screw 47 plays a role in positioning the power switching element 13 and the insulating sheet 52 with respect to the installation plate 43. .
  • inverter control board 17 In the peripheral portion of the installation plate 43, five insertion holes 56 are formed at positions corresponding to the predetermined sleeve 32 of the sleeve assembly 18 described above. Further, six positioning holes 57 are formed through the positions corresponding to the positioning pins 38 and 39 formed on the back surface of the sleeve assembly 18. (2-3) Configuration of inverter control board 17
  • the control circuit 16 of the inverter control board 17 performs switching control of each power switching element 13 of the power module 14 based on an external command. Moreover, it has the function to transmit the drive state of the motor 6 to the exterior, and is comprised by connecting circuit components, such as a microcomputer, by printed wiring.
  • the positioning pins 37 and 38 of the inverter control board 17 and the power module 14 are provided on the sleeve assembly 18, and the positioning pins 37 and 38 are inserted with the sleeve assembly 18 sandwiched between the inverter control board 17 and the power module 14. Since the inverter control board 17, the sleeve assembly 18, and the power module 14 are integrated by heat caulking, the inverter control board 17, the sleeve assembly 18, and the power module 14 of the inverter circuit unit 3 are integrated. This eliminates the need for special fasteners such as screws for reducing the number of components and reducing the weight.
  • On one end side of the support member 67 there are two bag-shaped metal nut members 69 having fine irregularities formed on the outer surface as shown in FIGS. Molded, exposed at the surface of the support member 67 and opened.
  • the nut members 69 are arranged at a predetermined interval from each other.
  • two guide portions 76 are formed on the edge of the support member 67 at a position corresponding to each nut member 69 so as to be formed on the inner side.
  • the guide portions 76 have a predetermined distance from each other. As described later, while the two power supply side connection terminals 31 are electrically connected to the filter circuit board 66, the guide portions 76 are restricted from being displaced. An insulation distance between the connection terminals 31 is secured. Furthermore, two filter side connection terminals (connection terminals) 71 are also integrally molded with the other end of the support member 67 in the same manner. Each filter-side connection terminal 71 includes a flat plate terminal portion 72 having a hole 75 as shown in FIG. 20 and a soldering portion 73 bent at a right angle from the flat plate terminal portion 72. Protrudes laterally from the support member 67, and the soldering portion 73 is embedded in the support member 67 so as to protrude from the upper surface.
  • a positioning pin 74 is formed to protrude from the bottom surface of the support member 67.
  • (3-2) Configuration of the filter circuit board 66 Electrical components such as the smoothing capacitor 63 and the coil 64 are mounted on the back side of the filter circuit board 66. Further, four insertion holes 77 are formed in the peripheral portion of the filter circuit board 66 at positions corresponding to the sleeve 68 of the support member 67 described above, and at positions corresponding to the nut members 69 of the support member 67, respectively.
  • the terminal connection holes 78 are formed at two locations on one end side. Further, two terminal connection holes 79 are formed at positions corresponding to the filter side connection terminals 71 of the support member 67 on the other end side of the filter circuit board 66.
  • the lower end of the sleeve 68 (the end on the housing 2 side) is located at the center in the height direction of the filter circuit portion 4 or in a region near the center (FIG. 3).
  • the filter circuit board 66 and the filter circuit board 66 are filled by filling the support member 67 with the thermosetting resin 81 in a state where the smoothing capacitor 63 and the coil 64 are accommodated in the support member 67 of the filter circuit unit 4 in the subline.
  • the support member 67 is integrated, and one end of the support member 67 is soldered to the filter circuit board 66 and the other end of the support circuit 67 is connected to the inverter circuit unit 3 with terminal connection portions 22 and 23 (male screws) and nuts as will be described later.
  • the flat plate terminal portion 72 of the filter side connection terminal 71 of the filter circuit portion 4 corresponds to the terminal connection portions 22 and 23 of the inverter circuit portion 3, and each of the terminal connection portions 22 and 23 is a flat plate of the filter side connection terminal 71. It becomes a shape entering the hole 75 of the terminal portion 72.
  • each motor side connection terminal 28 is fixed and electrically connected to the inverter control board 17, and the lead terminals 24 to 26 from the motor 6 are electrically connected to the inverter control board 17 by the motor side connection terminal 28.
  • the nuts 92 are screwed into the screw groove portions 34 of the terminal connection portions 22 and 23 of the inverter circuit portion 3 from above, so that the flat plate terminal portion 72 of the filter side connection terminal 71 is connected by the nut 92 and the inverter control board 17.
  • the flat terminal part 72 and the inverter control board 17 are fastened together.
  • the filter side connection terminal 71 is fixed and electrically connected to the inverter control board 17, and the filter circuit board 66 of the filter circuit unit 4 is electrically connected to the inverter control board 17 via the filter side connection terminal 71. Connecting. In this way, the inverter control board 17 and the filter side connection terminal 71 of the filter circuit section 4 are fastened to the terminal connection sections 22 and 23 by the nut 92 that is screwed into the thread groove section 34, and the inverter control board 17 and the filter circuit section are thus fastened. 4 is electrically connected, the inverter control board 17 and the filter circuit unit 4 can be connected with a highly rigid connection structure. Further, the inverter circuit unit 3 and the filter circuit unit 4 can be easily connected to and removed from the housing 2.
  • each power supply side connection terminal 31 is regulated, the screwing workability is improved, and the insulation distance between each power supply side connection terminal 31 is also secured (FIG. 31).
  • the lid member 11 is detachably attached to the opening 9 of the inverter accommodating portion 8, and the opening 9 of the inverter accommodating portion 8 is closed so as to be opened and closed (FIG. 1).
  • the inverter control board 17, the sleeve assembly 18, and the power module 14 of the inverter circuit unit 3 are integrated, and the filter circuit board 66 and the support member 67 of the filter circuit unit 4 are integrated.
  • the inverter circuit unit 3 and the filter circuit unit 4 are provided separately, the degree of freedom in design is increased in their arrangement, and the space for the inverter housing unit 8 can be saved. Furthermore, since the relatively large filter circuit unit 4 is provided separately from the inverter circuit unit 3, vibration resistance is improved, and the filter circuit unit 4 is extremely suitable as an electric compressor used in a vehicle air conditioner. In particular, since the inverter circuit portion 3 and the filter circuit portion 4 can be accommodated in the inverter accommodating portion 8 from the same direction, when the inverter circuit portion 3 and the filter circuit portion 4 are attached to the housing 2, There is no need to change the orientation, and the assembly work becomes even better.
  • the motor side connection terminals 28 connected to the lead terminals 24 to 26 of the motor 6 and the filter side connection terminals 71 of the filter circuit section 4 are fixed to the terminal connection portions 19 to 23 of the sleeve assembly 18, respectively. Since the inverter control board 17 is electrically connected, the inverter control board 17 can be electrically connected to the motor 6 and the filter circuit unit 4 without any trouble.
  • the sleeve 32 is integrated with the sleeve assembly 18 by integrally resin-molding the sleeve 32 into which the bolt 36 for fixing the inverter circuit portion 3 to the housing 2 is inserted into the sleeve assembly 18 as in the embodiment.
  • the number of parts can be reduced and the rigidity of the inverter circuit unit 3 can be improved.
  • terminal connection portions 19 to 21 having screw groove portions 34 are provided on the inverter circuit portion 3, and a flat terminal portion 88 is provided on the motor side connection terminal 28, and the flat terminal portion 88 is connected to the terminal connection portion 19.
  • the terminal connecting portions 19 to 21 are resin-molded integrally with the sleeve assembly 18 with the thread groove portion 34 protruding, so that the screw groove portion 34 protrudes through the inverter control board 17, and the nut 91.
  • the flat plate terminal portion 88 of the motor side connection terminal 28 is sandwiched between the nut 91 and the inverter control board 17, and in this state, the flat plate terminal portion 88 is controlled by the inverter. Since the circuit board 17 is electrically connected, the strength and rigidity of the inverter circuit section 3 around the terminal connection sections 19 to 21 to which the motor side connection terminal 88 is connected can be improved.
  • the sleeve assembly 18 is provided with the positioning pin 39 for the housing 2, so that the positioning with the housing 2 when the inverter circuit portion 3 is attached to the inverter accommodating portion 8 can be easily performed.

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

Abstract

L'invention concerne un compresseur électrique dans lequel l'oscillation d'une partie circuit de filtre qui absorbe les composantes haute fréquence d'un courant de commutation a été réduite. Une partie circuit de filtre (5) comprend une carte de circuit de filtre (66) sur laquelle sont montés des composants électriques tels qu'un condensateur de lissage (63), et un élément de support (67) en résine qui reçoit les composants électriques. L'élément de support (67) est moulé en résine de façon à comporter un manchon (68) ayant des dimensions prescrites, un boulon (36) destiné à fixer la partie circuit de filtre (4) à un boîtier (2) étant inséré dans le manchon. La partie circuit de filtre (4) est fixée au boîtier (2) au moyen du boulon (36) dans un état dans lequel le manchon (68) est en contact avec le boîtier (2).
PCT/JP2019/002598 2018-02-23 2019-01-21 Compresseur électrique WO2019163405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-031182 2018-02-23
JP2018031182A JP2019143606A (ja) 2018-02-23 2018-02-23 電動圧縮機

Publications (1)

Publication Number Publication Date
WO2019163405A1 true WO2019163405A1 (fr) 2019-08-29

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ID=67686816

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Application Number Title Priority Date Filing Date
PCT/JP2019/002598 WO2019163405A1 (fr) 2018-02-23 2019-01-21 Compresseur électrique

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JP (1) JP2019143606A (fr)
WO (1) WO2019163405A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102628071B1 (ko) * 2021-03-31 2024-01-23 가부시키가이샤 도요다 지도숏키 유체 기계
JP2023172598A (ja) * 2022-05-24 2023-12-06 サンデン株式会社 電動圧縮機及びその製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002070743A (ja) * 2000-08-29 2002-03-08 Sanden Corp 冷媒圧縮用電動式圧縮機
JP2017172509A (ja) * 2016-03-24 2017-09-28 サンデン・オートモーティブコンポーネント株式会社 インバータ一体型電動圧縮機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002070743A (ja) * 2000-08-29 2002-03-08 Sanden Corp 冷媒圧縮用電動式圧縮機
JP2017172509A (ja) * 2016-03-24 2017-09-28 サンデン・オートモーティブコンポーネント株式会社 インバータ一体型電動圧縮機

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