Switching device, switching power supply apparatus, and vehicle
View Patent ↗A switching device is provided. The apparatus includes a switching circuit and a noise filter. The switching circuit is capable of switching a connection destination of a first power conversion circuit other than a second power conversion circuit among the plurality of power conversion circuits between a phase corresponding to the first power conversion circuit and a certain phase of the external power supply. The second power conversion circuit corresponds to the certain phase of the external power supply. In the noise filter, a capacitor is provided on a side of the multiple-phase AC supply of the switching circuit.
1. A switching device configured to be connected to an external power supply, and provided with a plurality of power conversion circuits, the switching device comprising:
a switching circuit configured to switch a connection of a first power conversion circuit of the plurality of power conversion circuits,
the external power supply being a power supply selected from a multiple-phase power supply and a single-phase power supply,
the plurality of power conversion circuits respectively corresponds to phases of the multiple-phase power supply,
in a case where the external power supply is the multiple-phase power supply, the switching circuit connects the first power conversion circuit to a first phase of the external power supply corresponding to the first power conversion circuit,
in a case where the external power supply is the single-phase power supply, the switching circuit connects the first power conversion circuit to a second phase of the external power supply corresponding to a second power conversion circuit of the plurality of power conversion circuits; and
a noise filter that includes a capacitor and a coil configured to remove noise, the switching circuit being connected between the capacitor and the coil.
2. The switching device according to claim 1 , wherein the capacitor is provided on a side of the external power supply of the switching circuit, and the coil is provided on a side of the plurality of power conversion circuits of the switching circuit.
3. The switching device according to claim 1 , wherein
the noise filter includes a plurality of the capacitors and a plurality of the coils, and
at least one of the plurality of capacitors is provided on a side of the multiple-phase power supply of the switching circuit.
4. The switching device according to claim 3 , wherein all of the plurality of coils are provided on a side of the plurality of power conversion circuits of the switching circuit.
5. The switching device according to claim 3 , wherein all of the plurality of capacitors are provided on the side of the multiple-phase power supply of the switching circuit.
6. The switching device according to claim 1 , wherein the coil is a common mode choke coil or a normal mode choke coil.
7. The switching device according to claim 1 , wherein the capacitor is an across-the-line capacitor or a line bypass capacitor.
8. The switching device according to claim 1 , wherein each of the plurality of power conversion circuits includes a converter configured to convert an alternating current (AC) voltage supplied from the external power supply into a direct current (DC) voltage.
9. The switching device according to claim 8 , wherein each of the plurality of power conversion circuits includes a converter configured to convert the DC voltage into a voltage of a predetermined value.
10. The switching device according to claim 1 , wherein the switching circuit is a solenoid switching circuit.
11. The switching device according to claim 1 , wherein the switching circuit is a semiconductor switching element.
12. The switching device according to claim 1 , wherein the singe-phase power supply is a single-phase alternating current (AC) power supply.
13. The switching device according to claim 1 , wherein the multiple-phase power supply is a two-phase alternating current (AC) power supply.
14. The switching device according to claim 1 , wherein the multiple-phase power supply is a three-phase alternating current (AC) power supply.
15. The switching device according to claim 1 , wherein the external power supply is a power supply mounted on quick charging equipment.
16. A switching power supply apparatus, comprising:
the switching device according to claim 1 ; and
the plurality of power conversion circuits.
17. A vehicle, comprising the switching power supply apparatus according to claim 16 .