Fluid machine

Patent metadata

Field	Value
Publication number	US-12095338-B2
Application number	US-202217706096-A
Country	US
Kind code	B2
Filing date	Mar 28, 2022
Priority date	Mar 31, 2021
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A fluid machine includes an inverter compartment defined by a housing and a cover, the inverter compartment accommodating an inverter, and a wire electrically connected to an external connector and supplying power to a circuit board of the inverter. The wire includes a board coupling portion electrically connected to the circuit board, a connector coupling portion electrically connected to the external connector, and an extended portion extending along a wall surface of the cover and connecting the board coupling portion and the connector coupling portion. The fluid machine further includes a plastic mold covering the extended portion, and an anchor formed integrally with the plastic mold and engaged with a through-hole of the cover. The extended portion is held on the wall surface of the cover by the anchor.

First claim

What is claimed is:

1. A fluid machine, comprising:
a housing configured to draw in fluid;
an electric motor accommodated in the housing;
an inverter configured to drive the electric motor;
a metal cover attached to the housing;
an inverter compartment defined by the housing and the cover, the inverter compartment accommodating the inverter;
a wire configured to be electrically connected to an external connector and configured to supply power to a circuit board of the inverter, wherein the wire includes:
a board coupling portion electrically connected to the circuit board;
a connector coupling portion configured to be electrically connected to the external connector; and
an extended portion extending along a wall surface of the cover and connecting the board coupling portion and the connector coupling portion,
a plastic mold covering the extended portion; and
an anchor formed integrally with the plastic mold and engaged with a through-hole of the cover, wherein
the extended portion is held on the wall surface of the cover by the anchor wherein,
the wire includes:
a low-voltage wire; and
a high-voltage wire to which a higher voltage is applied than the low-voltage wire,

the extended portion includes:
a low-voltage extended portion of the low-voltage wire; and
a high-voltage extended portion of the high-voltage wire,

one of the low-voltage extended portion and the high-voltage extended portion is located inside the inverter compartment, and
the other one of the low-voltage extended portion and the high-voltage extended portion is located outside the inverter compartment.

2. The fluid machine according to claim 1 , wherein
the plastic mold includes a tubular connector portion that projects from the cover around the connector coupling portion and is configured to be connected to the external connector,
the anchor is one of a plurality of anchors of the plastic mold, and
two of the anchors and the connector portion are arranged in a direction that intersects a thickness direction of the circuit board, the connector portion is located between the two anchors, and the two anchors are engaged with the cover from the inverter compartment.

3. The fluid machine according to claim 1 , wherein
the cover includes an insertion hole through which the wire is inserted, and
the board coupling portion extends straight from the circuit board out of the inverter compartment through the insertion hole.

4. The fluid machine according to claim 1 , wherein
the high-voltage extended portion is located inside the inverter compartment, and
the low-voltage extended portion is located outside the inverter compartment.

5. The fluid machine according to claim 1 , wherein the anchor includes:
an insertion portion inserted through the through-hole in contact with a wall surface of the through-hole; and
a flange that extends outward from the insertion portion and is engaged with the cover around the through-hole.

6. The fluid machine of claim 1 , wherein
the low voltage extended portion extends in a direction that is orthogonal to a thickness direction of the circuit board.

7. The fluid machine of claim 1 , wherein
the high voltage extended portion extends in a direction that is orthogonal to a thickness direction of the circuit board.

Assignees

• Toyota Jidoshokki Kk

Inventors

• Shinohara Koki
• Yano Junya
• Kinoshita Yusuke

Classifications

• H02K11/33 Primary

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title

• H02K2211/03

  Machines characterised by circuit boards, e.g. pcb · CPC title

• B60H1/3222

  characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives (B60H1/3208, B60H1/3226 take precedence) · CPC title

• H02K2203/06

  Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations · CPC title

• F04C2240/403

  with inverter for speed control · CPC title