Inverter-integrated electric compressor
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.
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.
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.
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.
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.
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.
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.
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.