US 12,746,848 B2Granted

Power supply device

AssigneeYazaki Corporation

InventorsMitsuaki Morimoto, Kazuo Sugimura, Hiroteru Kato, Shoya Watanabe

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Abstract

Positive electrode-side input terminal is connected to first positive electrode-side battery terminal, negative electrode-side input terminal is connected to second negative electrode-side battery terminal, a switch is connected between first negative electrode-side battery terminal and second positive electrode-side battery terminal, between second positive electrode-side battery terminal and first connection point between positive electrode-side input terminal and first positive electrode-side battery terminal, and between first negative electrode-side battery terminal and second connection point between negative electrode-side input terminal and second negative electrode-side battery terminal, positive electrode-side output terminal is connected to positive electrode-side converter output terminal, negative electrode-side output terminal is connected to negative electrode-side converter output terminal, positive electrode-side converter input terminal is connected to a line connecting positive electrode-side input terminal and first positive electrode-side battery terminal, and negative electrode-side converter input terminal is connected to a line connecting negative electrode-side input terminal and second negative electrode-side battery terminal.

Claims12

Dependent claims

A power supply device comprising:

a first positive electrode-side battery terminal and a first negative electrode-side battery terminal for connecting a battery;
a second positive electrode-side battery terminal and a second negative electrode-side battery terminal for connecting a battery;
a positive electrode-side input terminal and a negative electrode-side input terminal for connecting a charger;
a positive electrode-side output terminal and a negative electrode-side output terminal for connecting a load;
a first switch;
a second switch;
a third switch, and
a power converter configured to operate in a power conversion mode, in which electric power inputted is converted in any of a step-up mode and a step-down mode, and a relay mode without converting a voltage of the electric power inputted, wherein
the positive electrode-side input terminal is connected to the first positive electrode-side battery terminal,
the negative electrode-side input terminal is connected to the second negative electrode-side battery terminal,
the first switch is connected between the first negative electrode-side battery terminal and the second positive electrode-side battery terminal,
the second switch is connected between a first connection point and the second positive electrode-side battery terminal, the first connection point being between the positive electrode-side input terminal and the first positive electrode-side battery terminal,
the third switch is connected between the first negative electrode-side battery terminal and a second connection point, the second connection point being between the negative electrode-side input terminal and the second negative electrode-side battery terminal,
the power converter includes a positive electrode-side converter input terminal, a negative electrode-side converter input terminal, a positive electrode-side converter output terminal, and a negative electrode-side converter output terminal,
the positive electrode-side output terminal is connected to the positive electrode-side converter output terminal,
the negative electrode-side output terminal is connected to the negative electrode-side converter output terminal,
the positive electrode-side converter input terminal is connected to a line that connects the positive electrode-side input terminal and the first positive electrode-side battery terminal, and
the negative electrode-side converter input terminal is connected to a line that connects the negative electrode-side input terminal and the second negative electrode-side battery terminal.

15 more elements

A power supply device comprising:

a first positive electrode-side battery terminal and a first negative electrode-side battery terminal for connecting a battery;
a second positive electrode-side battery terminal and a second negative electrode-side battery terminal for connecting a battery;
a positive electrode-side input terminal and a negative electrode-side input terminal for connecting a charger;
a positive electrode-side output terminal and a negative electrode-side output terminal for connecting a load;
a first switch;
a second switch;
a third switch;
a power converter;
and
a control unit configured to control the first switch, the second switch, the third switch and the power converter, wherein
the positive electrode-side input terminal is connected to the first positive electrode-side battery terminal,
the negative electrode-side input terminal is connected to the second negative electrode-side battery terminal,
the first switch is connected between the first negative electrode-side battery terminal and the second positive electrode-side battery terminal,
the second switch is connected between a first connection point and the second positive electrode-side battery terminal, the first connection point being between the positive electrode-side input terminal and the first positive electrode-side battery terminal,
the third switch is connected between the first negative electrode-side battery terminal and a second connection point, the second connection point being between the negative electrode-side input terminal and the second negative electrode-side battery terminal,
the power converter includes a positive electrode-side converter input terminal, a negative electrode-side converter input terminal, a positive electrode-side converter output terminal, and a negative electrode-side converter output terminal,
the positive electrode-side output terminal is connected to the positive electrode-side converter output terminal,
the negative electrode-side output terminal is connected to the negative electrode-side converter output terminal,
the positive electrode-side converter input terminal is connected to a line that connects the positive electrode-side input terminal and the first positive electrode-side battery terminal,
the negative electrode-side converter input terminal is connected to a line that connects the negative electrode-side input terminal and the second negative electrode-side battery terminal, and
the control unit is configured to control the first switch, the second switch and the third switch such that the first switch is opened and the second switch and the third switch are closed and control the power converter to output electric power inputted without converting the electric power inputted, when
a first battery with a drive voltage that is a first voltage is connected to the first positive electrode-side battery terminal and the first negative electrode-side battery terminal,
a second battery with a drive voltage that is the first voltage is connected to the second positive electrode-side battery terminal and the second negative electrode-side battery terminal,
a first charger that supplies electric power with the first voltage is connected to the positive electrode-side input terminal and the negative electrode-side input terminal, and
a load with a drive voltage that is the first voltage is connected to the positive electrode-side output terminal and the negative electrode-side output terminal.

22 more elements

A power supply device comprising:

a first positive electrode-side battery terminal and a first negative electrode-side battery terminal for connecting a battery;
a second positive electrode-side battery terminal and a second negative electrode-side battery terminal for connecting a battery;
a positive electrode-side input terminal and a negative electrode-side input terminal for connecting a charger;
a positive electrode-side output terminal and a negative electrode-side output terminal for connecting a load;
a first switch;
a second switch;
a third switch;
a power converter;
and
a control unit configured to control the first switch, the second switch, the third switch and the power converter, wherein
the positive electrode-side input terminal is connected to the first positive electrode-side battery terminal,
the negative electrode-side input terminal is connected to the second negative electrode-side battery terminal,
the first switch is connected between the first negative electrode-side battery terminal and the second positive electrode-side battery terminal,
the second switch is connected between a first connection point and the second positive electrode-side battery terminal, the first connection point being between the positive electrode-side input terminal and the first positive electrode-side battery terminal,
the third switch is connected between the first negative electrode-side battery terminal and a second connection point, the second connection point being between the negative electrode-side input terminal and the second negative electrode-side battery terminal,
the power converter includes a positive electrode-side converter input terminal, a negative electrode-side converter input terminal, a positive electrode-side converter output terminal, and a negative electrode-side converter output terminal,
the positive electrode-side output terminal is connected to the positive electrode-side converter output terminal,
the negative electrode-side output terminal is connected to the negative electrode-side converter output terminal,
the positive electrode-side converter input terminal is connected to a line that connects the positive electrode-side input terminal and the first positive electrode-side battery terminal,
the negative electrode-side converter input terminal is connected to a line that connects the negative electrode-side input terminal and the second negative electrode-side battery terminal,
the control unit is configured to control the first switch, the second switch and the third switch such that the first switch is closed and the second switch and the third switch are opened and control the power converter to output electric power inputted without converting the electric power inputted, when
a first battery with a drive voltage that is a first voltage is connected to the first positive electrode-side battery terminal and the first negative electrode-side battery terminal,
a second battery with a drive voltage that is the first voltage is connected to the second positive electrode-side battery terminal and the second negative electrode-side battery terminal,
a second charger that supplies electric power with a second voltage that is a voltage twice the first voltage is connected to the positive electrode-side input terminal and the negative electrode-side input terminal, and
a load with a drive voltage that is the second voltage is connected to the positive electrode-side output terminal and the negative electrode-side output terminal.

22 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/329,176Filed 5 Jun 2023
Priority: JP 2022-0914196 Jun 2022
Published: US 2023/0391228 A17 Dec 2023
Granted: 29 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B60L 58/19
Of two or more battery modules: switching between serial connection and parallel connection of battery modules
H02M 3/158
With automatic control of output voltage or current, e.g. switching regulators: including plural semiconductor devices as final control devices…
B60L 53/11
Characterised by the energy transfer between the charging station and the vehicle: dC charging controlled by the charging station, e.g. mode 4
B60L 58/21
Of two or more battery modules: having the same nominal voltage