KR-20260064055-A - BATTERY CHARGING SYSTEM WITH MODULAR POWER SUPPLY AND CHARGING METHOD THEREOF
Abstract
A battery charging system equipped with a modular power supply and a charging method thereof are disclosed. The battery charging system equipped with a modular power supply according to the present invention comprises: a plurality of modular power supply units; and a power connection control unit that connects each modular power supply unit to a battery slot managed by each of the modular power supply units to charge a battery pack mounted in each battery slot. Each modular power supply unit is equipped with a converter for charging a battery pack, and the converter is equipped with a constant voltage charging mode that charges the battery using a voltage-based buffering method and a constant current charging mode that charges the battery using a current-based charging method. When a failure occurs in at least one of the plurality of modular power supply units, the power connection is controlled to charge the battery pack mounted in the battery slot managed by the failed modular power supply unit through the remaining normally operating modular power supply unit.
Inventors
- 양국승
- 정우근
- 주현우
- 이준형
Assignees
- 트래시스(주)
- 주식회사 셀리안츠
Dates
- Publication Date
- 20260507
- Application Date
- 20241031
Claims (5)
- Multiple modular power supply units; and A power connection control unit that connects each of the above-mentioned modular power supply units and the battery slots managed by each of the above-mentioned modular power supply units, respectively, to charge the battery packs installed in each battery slot; is included. Each of the above-mentioned modular power supply units is equipped with a converter for charging the battery pack, and The above converter is equipped with a constant voltage charging mode that charges the battery using a voltage-based buffering method and a constant current charging mode that charges the battery using a current-based charging method. A battery charging system equipped with a modular power supply, characterized by controlling the power connection so that when a failure occurs in at least one of the plurality of modular power supply units, the battery pack mounted in the battery slot handled by the failed modular power supply unit is charged through the remaining normally operating modular power supply unit.
- In paragraph 1, The above modular power supply unit is, An individual terminal connected to a battery slot terminal provided in at least one battery slot that it manages; and A battery charging system equipped with a modular power supply, characterized by being configured to include a common terminal connected to all modular power supplies.
- In paragraph 1, The above power connection control unit is, Each battery pack is charged by connecting the individual terminal of each of the above-mentioned modular power supply units to the battery slot terminal provided in the battery slot managed by each of the above-mentioned modular power supply units, and A battery charging system equipped with a modular power supply, characterized in that when a failure occurs in at least one modular power supply, the common terminal of the modular power supply in which the failure occurred is connected to the battery slot terminal provided in at least one battery slot managed by the said modular power supply, thereby allowing the battery pack installed in the battery slot managed by the said modular power supply to be charged through the remaining normally operating modular power supply.
- In a battery charging method of a battery charging system equipped with a modular power supply, A power connection control step of connecting a plurality of modular power supply units and a battery slot managed by each of the modular power supply units to charge a battery pack mounted in each battery slot; and When a failure occurs in at least one of the plurality of modular power supply units, a step of controlling the power connection to charge a battery pack installed in the battery slot managed by the failed modular power supply unit through the remaining normally operating modular power supply unit; Includes, The above modular power supply unit is equipped with a converter for charging the battery pack, and A battery charging method characterized by the above converter having a constant voltage charging mode that charges the battery using a voltage-based buffering method and a constant current charging mode that charges the battery using a current-based charging method.
- In paragraph 4, The above modular power supply unit is, An individual terminal connected to a battery slot terminal provided in at least one battery slot that it manages; and A battery charging method characterized by comprising a common terminal connected to all modular power supply units.
Description
Battery charging system equipped with a modular power supply and charging method thereof The present invention relates to a battery charging system equipped with a modular power supply unit, and more specifically, to a battery charging system that enables efficient operation by providing a plurality of modularized power supply units (modular power supply units) in the battery charging system, thereby saving costs associated with replacing the entire power supply unit in the event of a failure of the power supply unit, and by allowing the battery pack that was being charged through the failed modular power supply unit to be charged through the remaining normally operating modular power supply unit even if at least one modular power supply unit fails. An electric vehicle refers to a vehicle that operates using electricity supplied through a built-in battery pack. While these electric vehicles offer significant advantages in driving performance and convenience compared to internal combustion engine vehicles, they have the drawback of requiring a considerable amount of time to charge a discharged battery pack. To address these issues, public interest is rapidly increasing in battery charging systems that replace a discharged battery pack with a fully charged one, rather than a method of directly charging the battery pack equipped in the electric vehicle. Generally, a battery charging system is configured to include a plurality of battery slots for mounting and charging battery packs, and a power supply unit for supplying power to the battery packs mounted in each battery slot. The power supply unit accounts for a very high proportion of the cost involved in configuring a battery charging system. Furthermore, because the power supply unit is used very frequently, the entire unit must be replaced once a failure occurs. However, conventional battery charging systems are configured to charge battery packs installed in multiple battery slots by supplying power through a single power supply unit, so if a failure occurs in the power supply unit, the entire power supply unit must be replaced, which results in high maintenance costs (replacement costs). In particular, conventional battery charging systems have a problem in that if the power supply fails, charging of the entire battery pack stops, and thus the battery pack replacement service is also suspended. Accordingly, the present invention proposes a method to reduce maintenance costs by configuring the power supply unit for charging battery packs in a battery charging system not as a single module, but as a plurality of modules (i.e., modular power supply units), wherein each modular power supply unit is responsible for at least one battery slot to charge the battery pack installed in each battery slot, thereby allowing only the faulty modular power supply unit to be replaced in the event of a failure, instead of replacing the entire power supply unit. In addition, the present invention proposes a method to efficiently operate a battery charging system until the modular power supply unit is replaced due to the failure by connecting the battery slot managed by the faulty modular power supply unit to the remaining power supply unit that is operating normally, so that the battery pack installed in the battery slot is charged through the remaining power supply unit. In addition, the present invention proposes a method to minimize the occurrence of failures caused by lightning strikes or the application of sudden loads by providing surge protection means for each modular power supply. In addition, power is supplied through the remaining power supply until the said modular power supply is replaced, and power is supplied to the battery slot handled by the faulty modular power supply through a terminal that combines the outputs of the remaining power supply, so that charging is performed in a state of even distribution so that the load is not increased on the remaining power supply. Next, we will briefly explain the prior art existing in the technical field of the present invention, and then describe the technical details that the present invention aims to achieve differently from the said prior art. First, Korean Registered Patent No. 2233848 (March 24, 2021) relates to a charging system for battery exchange and a method for manufacturing the station thereof, comprising a plurality of battery packs, a plurality of module parts each accommodating the plurality of battery packs, and a station main body part connecting the plurality of module parts in parallel with respect to the power output of a power source, and a method for manufacturing the station thereof. In other words, Korean Registered Patent No. 2233848 has a problem in that the power supply unit for charging the battery pack by supplying power to each module is composed of a single module, so if the power supply unit fails, the power supply unit itself must be replaced, which leads to the suspension of the batte