US 12,487,256 B2
Voltage sensor and power conversion device
Hirokazu Takabayashi, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/256,068
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Jan. 12, 2021, PCT No. PCT/JP2021/000727
§ 371(c)(1), (2) Date Jun. 6, 2023,
PCT Pub. No. WO2022/153371, PCT Pub. Date Jul. 21, 2022.
Prior Publication US 2024/0044948 A1, Feb. 8, 2024
Int. Cl. G01R 19/10 (2006.01); H02M 7/00 (2006.01)
CPC G01R 19/10 (2013.01) [H02M 7/003 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A voltage sensor for measuring a potential difference between a first busbar and a second busbar, the voltage sensor comprising:
a substrate on which a first electrode, a second electrode, and a measurement circuit are disposed, the measurement circuit being configured to measure the potential difference between the first busbar and the second busbar by measuring a potential difference between the first electrode and the second electrode;
a first connecting member for electrically connecting the first electrode to the first busbar and fixing the substrate to the first busbar;
a second connecting member for electrically connecting the second electrode to the second busbar and fixing the substrate to the second busbar; and
a first supporting member for electrically connecting the first busbar and a third busbar to each other and supporting the first busbar and the third busbar,
wherein the first supporting member includes
a first conductive member to which the first busbar and the third busbar are to be fixed, the first conductive member being for electrically connecting the first busbar and the third busbar to each other, and
a first insulating member formed from an insulating material and covering the first conductive member, and
the first connecting member electrically connects the first electrode to the first conductive member.