Capacitor device

Patent metadata

Field	Value
Publication number	US-11223295-B2
Application number	US-201916564270-A
Country	US
Kind code	B2
Filing date	Sep 9, 2019
Priority date	Sep 13, 2018
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

In a capacitor device for transferring power between a power source and a target component including an electronic and/or electric component, at least one capacitor is housed in a capacitor case. A busbar is drawn out from the capacitor case. The busbar electrically connects the at least one capacitor to the target component. The capacitor case includes at least first, second, and third fixture members for fixation of the capacitor case. The third fixture member is located to be separated from a virtual line connecting between a first reference point of the first fixture member and a second reference point of the second fixture member, and located to be closer to the target component than the first and second fixture members are. The busbar is located to be closer to the third fixture member than to the virtual line.

First claim

What is claimed is:

1. A capacitor device for transferring power between a power source and a target component including an electronic and/or electric component, the capacitor device comprising:
at least one capacitor;
a capacitor case configured to house the at least one capacitor;
a busbar drawn out from the capacitor case and configured to electrically connect the at least one capacitor to the target component,
wherein:
the capacitor case comprises at least first, second, and third fixture members for attaching the capacitor case to another structure;
the third fixture member is located to be separated from a virtual line connecting between a first reference point of the first fixture member and a second reference point of the second fixture member;
the target component is separated from the virtual line and is located to be more separated from the virtual line than from the third fixture member; and
the busbar is located to be closer to the third fixture member than to the virtual line.

2. The capacitor device according to claim 1 , wherein:
the capacitor case has a first region and a second region partitioned by the virtual line, the first region being closer to the third fixture member than the second region is; and
the busbar is located in the first region.

3. The capacitor device according to claim 1 , wherein:
the capacitor case has:
an enclosure space in which the at least one capacitor is housed;
an end surface communicating with the enclosure space and overlapping the virtual line when viewed from a normal line to the end surface;
when first and second additional virtual lines are provided to respectively connect between the first reference point of the first fixture member and a reference point of the third fixture member, and between the second reference point of the second fixture member and the reference point of the third fixture member, the virtual line and the first and second additional virtual lines constitute a triangular region;
the end surface of the capacitor case has a center of gravity; and
the center of gravity of the end surface of the capacitor case is located within the triangular region.

4. The capacitor device according to claim 1 , wherein:
the at least one capacitor comprises at least first and second capacitors housed in the capacitor case; and
a third capacitor is located between the first and second fixture members.

5. The capacitor device according to claim 1 , wherein:
the capacitor case is configured to have:
a predetermined longitudinal direction; and
first and second ends in the predetermined longitudinal direction; and

the first and second fixture members are located at the respective first and second ends of the capacitor case.

6. The capacitor device according to claim 3 , wherein:
the capacitor case is configured to have:
a predetermined longitudinal direction; and
first and second ends in the predetermined longitudinal direction; and

the first and second fixture members are located at the respective first and second ends of the capacitor case;
each of the first to third fixture members has a predetermined height in a direction perpendicular to the longitudinal direction and the normal direction; and
the height of the third fixture member is higher than the height of each of the first and second fixture members.

Assignees

• Denso Corp

Inventors

• Sano Tomohisa
• Harada Daisuke
• Araki Seido
• Imai Yohei
• Hirose Kentaro

Classifications

• H02M7/53

  using devices of a triode or transistor type requiring continuous application of a control signal {(H02M7/4807, H02M7/493 and H02M7/4826 take precedence)} · CPC title

• H02M7/5387

  in a bridge configuration · CPC title

• H02M7/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• Y02B70/10

  Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes · CPC title

• H02M7/4815

  Resonant converters (H02M7/4811 and H02M7/4826 take precedence) · CPC title