Title:
VEHICLE POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/167211
Kind Code:
A1
Abstract:
Provided is a vehicle power supply device capable of implementing inexpensive and reliable electric shock preventative measures. A vehicle power supply device 1 is provided with: a first power storage element group 2 in which multiple power storage elements are connected in series; a second power storage element group 3 which is connected in series to the positive pole side of the first power storage element group and forms a high-voltage DC power supply by being combined with the first power storage element group; an active balancer 4; a first switching means 5 and second switching means 6 which are disposed between the first power storage element group and a low-voltage load; a control means 7; an interrupting means 8 for interrupting power from the high voltage DC power supply; and a power leakage detection means 9. The control means determines a signal transmitted from the power leakage detection means 9 during a dead time period in which the first switching means 5 and the second switching means 6 are OFF, and interrupts power supplied to the load for a prescribed period if the leakage current has reached a prescribed level.
Inventors:
YAMANOUE KOICHI (JP)
MAKIO DAISUKE (JP)
MAKIO DAISUKE (JP)
Application Number:
PCT/JP2023/007456
Publication Date:
September 07, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
IMASEN ELECTRIC IND (JP)
International Classes:
B60R16/02; H02H3/16; G01R31/52; H02J7/00; H02J7/02
Foreign References:
| JP2021114847A | 2021-08-05 | |||
| JP2021023018A | 2021-02-18 |
Attorney, Agent or Firm:
NISHIO Akira (JP)
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