CN-121989735-A - Charging system

Abstract

The invention provides a charging system with small installation space and low cost. A charging system includes at least 4 or more power conversion units and a plurality of charging ports to which power output from the power conversion units is supplied, wherein the charging system includes a plurality of changeover switches arranged on a current path connecting the power conversion units and the charging ports, the outputs of the power conversion units being connectable in a loop, and a control device that selects a charging port to which power is supplied to a charging port that does not need to be charged from among adjacent charging ports in a loop connection direction of the changeover switches based on charging information of a charging target device connected to the charging port that is adjacent to the charging port that does not need to be charged, when the charging port that does not need to be supplied with power exists, and controls the changeover switches so as to supply the power supplied to the charging port that does not need to be charged to the selected charging port.

Inventors

• Nan Ben will be big

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260508

Application Date

20251103

Priority Date

20241108

Claims (3)

1. 1. A charging system provided with at least 4 or more power conversion units and a plurality of charging ports to which power output from the power conversion units is supplied, the charging system comprising: a plurality of change-over switches arranged on a current path connecting the power conversion unit and the charging port, the change-over switches being capable of connecting the output of the power conversion unit in a ring shape, and And a control device that, when there is a charging port to which electric power is not required, selects a charging port to which electric power is to be supplied from among adjacent charging ports based on charging information of a charging target device connected to the charging port adjacent to the charging port in a ring connection direction of the changeover switch, and controls the changeover switch so as to supply electric power to be supplied to the charging port selected.
2. 2. The charging system of claim 1, wherein the charging system comprises a charging system, The charging information includes a time required for charging the charging target device.
3. 3. The charging system according to claim 2, wherein, The control device selects a charging port so as to minimize the time required for charging all the charging-target devices connected to the charging port.

Description

Charging system Technical Field The present invention relates to a charging system. Background Patent document 1 describes a charging system including a plurality of power conversion units, a plurality of charging ports for supplying power to a plurality of charging target devices, and a matrix-shaped switching unit for switching connection relationships between the plurality of power conversion units and the plurality of charging ports. Patent document 1 Japanese patent application laid-open No. 2023-122190 Disclosure of Invention In the charging system described in patent document 1, a large number of switches are required to switch the connection relationship between the plurality of power conversion units and the plurality of charging ports, and therefore it is difficult to construct a charging system that is small in installation space and low in cost. The present invention has been made in view of the above circumstances, and an object thereof is to provide a charging system that is small in installation space and low in cost. The charging system includes at least 4 or more power conversion units and a plurality of charging ports to which power output from the power conversion units is supplied, wherein the charging system includes a plurality of changeover switches arranged on a current path connecting the power conversion units and the charging ports, the outputs of the power conversion units being connectable in a ring shape, and a control device that selects a charging port to which power is supplied to a charging port that is not required from among adjacent charging ports in a ring connection direction of the changeover switches based on charging information of a charging target device connected to the charging port that is adjacent to the charging port that is not required from among the adjacent charging ports, and controls the changeover switches so as to supply power to the charging port that is not required to be supplied to the selected charging port. Preferably, the charging information includes a time required for charging the charging target device. Preferably, the control device selects a charging port so as to minimize a time required for charging all the charging target devices connected to the charging port. Effects of the invention According to the present invention, a charging system with a small installation space and low cost can be provided. Drawings Fig. 1 is a schematic diagram showing a configuration of a charging system according to an embodiment of the present invention. Fig. 2 is a flowchart showing a flow of a charging process according to an embodiment of the present invention. Detailed Description Hereinafter, a configuration of a charging system according to an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic diagram showing a configuration of a charging system according to an embodiment of the present invention. As shown in fig. 1, a charging system 1 as an embodiment of the present invention includes an alternating current power supply (AC) 2, a charging device 3, a plurality of charging ports 4 (4 a to 4 d), and a control device 5. The charging system 1 of the present embodiment charges a charging target device such as a battery of a vehicle connected to the charging port 4 by using ac power supplied from the ac power supply 2. The charging device 3 includes a plurality of AC/DC converters 31 (31 a to 31 d), a plurality of switching switches 32 (32 a to 32 d), and a plurality of switching switches 33 (33 a to 33 d). The AC/DC converters 31 convert AC power supplied from the AC power supply 2 into DC power and output the DC power to the current paths 34 (34 a to 34 d) on the output side. The change-over switch 32 is disposed between the current paths 34a to 34d, and is configured to be capable of annularly connecting the outputs of the plurality of AC/DC converters 31. Specifically, the changeover switch 32a is disposed between the current path 34a connecting the AC/DC converter 31a and the charging port 4a and the current path 34b connecting the AC/DC converter 31b and the charging port 4 b. The changeover switch 32a switches connection/disconnection of the output of the AC/DC converter 31a and the output of the AC/DC converter 31b according to on/off operations. The changeover switch 32b is disposed between a current path 34b connecting the AC/DC converter 31b and the charging port 4b and a current path 34c connecting the AC/DC converter 31c and the charging port 4 c. The changeover switch 32b switches connection/disconnection of the output of the AC/DC converter 31b and the output of the AC/DC converter 31c according to on/off operations. The changeover switch 32c is disposed between a current path 34c connecting the AC/DC converter 31c and the charging port 4c and a current path 34d connecting the AC/DC converter 31d and the charging port 4 d. The changeover switch 32c switches connection/disconnection o