JP-2026075733-A - Power Cabinet

JP2026075733AJP 2026075733 AJP2026075733 AJP 2026075733AJP-2026075733-A

Abstract

[Problem] To control the temperature inside the power cabinet to an appropriate temperature without increasing the number of parts. [Solution] A power cabinet 100 including a power module 10 for supplying power to a charging post 60, comprising a housing 101 in which the power module 10 is housed, a temperature sensor 22 for measuring the temperature inside the housing 101, and a control device 21, wherein the control device 21 controls the state of the power module 10 to a standby state in which power can be supplied to the charging post 60 when the temperature exceeds a threshold after the power module 10 has been started. [Selection Diagram] Figure 3

Inventors

吉住啓

Assignees

トヨタ自動車株式会社

Dates

Publication Date: 20260511
Application Date: 20241023

Claims (4)

A power cabinet for supplying power to a first charging facility for charging a vehicle, The casing and A heating element is placed inside the enclosure to raise the temperature inside the enclosure, A temperature sensor for measuring the temperature inside the housing, Equipped with a control device, The heating element includes a first power supply module for supplying power to the first charging equipment. The control device controls the state of the first power module from a state in which power cannot be supplied to the first charging equipment to a standby state in which power can be supplied to the first charging equipment when the temperature exceeds a threshold after the first power module has been started up, in a power cabinet.
The enclosure is equipped with a cabinet fan for dissipating heat from within the enclosure, The first power supply module is A module fan for dissipating heat from within the first power supply module, Including a control circuit, The control circuit drives the module fan when starting the first power supply module. The power cabinet according to claim 1, wherein the control device drives the cabinet fan when power supply from the first power module to the first charging equipment is started.
The system further includes a communication device that relays communication between the control device and the first charging equipment. The power cabinet according to claim 1 or 2, wherein the control device, upon receiving information from the first charging equipment requesting charging of the vehicle, causes the first power module to start supplying power to the first charging equipment.
The heating element further includes a second power supply module, The second power module supplies power to the second charging equipment, The power cabinet according to claim 1 or 2, wherein the control device starts up the first power module and the second power module together.

Description

This disclosure relates to a power cabinet, and more specifically, to a power cabinet including a power module for supplying power to a charging facility for charging a vehicle. Japanese Patent Publication No. 2012-109215 (Patent Document 1) describes a charging stand comprising a main body housing electrical equipment used for charging a vehicle, and a heater that generates heat when energized to raise the surface temperature of the main body. According to the charging stand described in Patent Document 1, even if the charging stand is placed in a low-temperature environment, the heater can raise the temperature inside the main body to a usable range for the electrical equipment. Japanese Patent Publication No. 2012-109215 This figure shows an example of the configuration of a charging system to which the power cabinet according to this embodiment is applied.This figure shows an example of how a power supply module is arranged within the enclosure of a power cabinet.This is a block diagram showing the configuration of a power cabinet.This is a flowchart showing the processing procedure for power cabinets. The embodiments of this disclosure will be described in detail below with reference to the drawings. Parts identical or corresponding to those shown in the drawings are denoted by the same reference numerals, and their descriptions will not be repeated. Figure 1 shows an example of the configuration of a charging system 1 to which the power cabinet 100 according to this embodiment is applied. The charging system 1 includes the power cabinet 100 and charging posts 60. Multiple charging posts 60 are connected to the power cabinet 100. Figure 1 shows an example where two charging posts 60 are connected to the power cabinet 100. However, the power cabinet 100 may have one charging post 60 connected, or three or more charging posts 60 connected. The charging post 60 is an example of a charger for charging a vehicle 70. The vehicle 70 is an electric vehicle (BEV: Battery Electric Vehicle) or a plug-in hybrid electric vehicle (PHEV: Plug-in Hybrid Electric Vehicle), etc. The vehicle 70 is equipped with a connector 71 and an energy storage device 72. The charging post 60 includes a power plug 61 connected to the connector 71 of the vehicle 70. The power supplied to the vehicle 70 is charged to the energy storage device 72. The power stored in the energy storage device 72 is used to drive the vehicle 70. The power cabinet 100 is supplied with power from a power grid 50, which is an example of a high-voltage (for example, 400V) AC power source. The power cabinet 100 has a function to convert the high-voltage power from the power grid 50 to a predetermined level of power. For example, the power cabinet converts the high-voltage power from the power grid 50 to 200V DC power and supplies 200V DC power to the charging post 60. The charging post 60 supplies 200V DC power to the vehicle 70 via a power plug 61. The charging system 1 is intended to be installed outdoors. Therefore, the power cabinet 100 is required to operate normally even in extremely low-temperature environments in cold regions during mid-winter (for example, environments below -10°C). To achieve this, it is necessary to maintain an appropriate internal temperature within the power cabinet 100 even in extremely low-temperature environments. To maintain an optimal temperature inside the power cabinet 100, one might consider installing a dedicated heater inside the power cabinet 100. However, this would require space for the heater inside the power cabinet 100, and the increased number of components would raise costs. Therefore, the following proposes a method for controlling the temperature inside the power cabinet 100 to an optimal level without increasing the number of components. Figure 2 shows an example of how the power modules 10 are arranged within the enclosure 101 of the power cabinet 100. As shown in Figure 2, multiple power modules 10 are mounted within the enclosure 101 of the power cabinet 100. Each power module 10 has the function of converting high-voltage power from the power grid 50 to 200V DC power. Each power module 10 is equipped with multiple module fans 13 for dissipating heat from within the power module 10. The enclosure 101 is provided with a cabinet fan 23 for dissipating heat from within the enclosure 101. Although not shown in Figure 2, the enclosure space 102 contains various electrical equipment, piping, and wiring in addition to the power modules 10. Figure 3 is a block diagram showing the configuration of the power cabinet 100. As shown in Figure 3, the power cabinet 100 comprises a plurality of power supply modules 10, a control device 21, a temperature sensor 22, a cabinet fan 23, a communication device 24, a low-voltage power supply 31 corresponding to 12V, and a low-voltage power supply 32 corresponding to 24V. The control device 21 controls the power cabinet 100. The control device 21 is comprised, for example, a micro