CN-121989731-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 switches arranged between current paths connecting the power conversion units and the charging ports, and is capable of connecting the outputs of the power conversion units in a ring shape.

Inventors

• Nan Ben will be big

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260508

Application Date

20251021

Priority Date

20241106

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: and a plurality of switching switches which are arranged between current paths connecting the power conversion unit and the charging port, and which are capable of connecting the output of the power conversion unit in a ring shape.
2. 2. The charging system according to claim 1, characterized by comprising: and a control device that controls the amount of electricity supplied to the charging port by switching on/off of the plurality of changeover switches.
3. 3. The charging system according to claim 1 or 2, wherein, The change-over switch is arranged so as to be capable of connecting some of the outputs of at least 4 or more power conversion units in a ring shape.

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, since a plurality of switches are required to switch the connection relationship between a plurality of power conversion units and a plurality of charging ports, it is difficult to construct a charging system that is small in installation space and inexpensive. The present invention has been made in view of the above circumstances, and an object thereof is to provide a charging system which is small in installation space and inexpensive. A charging system according to the present invention 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, and includes a plurality of switches disposed between current paths connecting the power conversion units and the charging ports, and capable of connecting the outputs of the power conversion units in a ring shape. The charging system according to the present invention may further include a control device that controls an amount of electric power supplied to the charging port by switching on/off of the plurality of switching switches. The changeover switch may be arranged so as to be capable of connecting some of the outputs of at least 4 or more power conversion units in a ring shape. Effects of the invention According to the present invention, a charging system having a small installation space and being inexpensive 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 schematic diagram showing a configuration of a charging system according to another embodiment of the present invention. Fig. 3 is a schematic diagram showing a configuration of a modification of the charging system shown in fig. 2. 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 source 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 connecting the outputs of the plurality of AC/DC converters 31 in a ring shape. 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 change-over 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 of the output of the AC/DC converter 31c and the output of the AC/DC converter 31d according to on/off operations. The changeover switch 32d is disposed between a current path 34d connecting the AC/DC converter 31d and the charging port 4d and a current path 34a connecting the AC/DC conver