A charging pile multi-gun power distribution system
The multi-gun power distribution system for charging piles, which combines multiple loops and various power modules, solves the problems of inflexible power distribution and large size of traditional charging piles, achieving flexible power distribution and efficient charging, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHARGING TECHNOLOGY CO LTD
- Filing Date
- 2025-10-20
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional charging piles suffer from inflexible power allocation, resulting in insufficient utilization of the charging power module, and are bulky due to the use of a large number of DC relays.
By employing a multi-loop, multi-power module combination, and through the cooperation of the control unit, power module, and DC relay, flexible power distribution and adjustment are achieved. By using multiple parallel power modules connected to the charging gun, the number of relays is reduced, and charging efficiency is improved.
The power of the charging gun has been increased, the size of the charging station has been reduced, the charging time has been shortened, the charging efficiency has been improved, and the cost has been reduced.
Smart Images
Figure CN224545757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging pile technology, specifically a multi-gun power distribution system for charging piles. Background Technology
[0002] Currently, DC charging piles are expensive, bulky, require a large area, and are inconvenient to transport. Considering the characteristics of battery charging curves, we have developed a charging pile product with flexible power distribution and fewer relays, thus reducing its size. This product solves the problem of insufficient utilization of the charging power module caused by inflexible power distribution in traditional charging piles. It also solves to some extent the problem of the large number of DC relays used in traditional charging piles for flexible power distribution, which makes the charging piles bulky. Utility Model Content
[0003] The purpose of this invention is to provide a multi-gun power distribution system for charging piles, which adopts a multi-loop and multi-power module combination to increase the flexibility and granularity of power distribution, shorten charging time, and improve the efficiency of charging piles.
[0004] This utility model provides the following technical solution: a multi-gun power distribution system for charging piles, comprising multiple charging guns and multiple parallel power modules. The power modules are connected to the charging guns and provide power to them. Each power module includes multiple parallel first charging power modules, with a third charging power module and a second charging module connected in parallel to each first charging power module. The charging power of the first, second, and third charging power modules are all different. The multiple second charging power modules are connected through a DC relay. The system also includes a control unit connected to the power modules and the DC relay. The control unit is used to control the starting of the charging power modules and to regulate the voltage, current, and power of the power modules.
[0005] According to the above technical solution, a circuit is connected in series on the first charging power module, the first charging power module and the third charging power module are connected in parallel on the circuit, and DC relays are connected to the first charging power module and the third charging power module.
[0006] According to the above technical solution, the two adjacent third charging power modules are distributed on both sides of the first charging power module.
[0007] According to the above technical solution, the control unit includes an MCU control chip, a power distribution module, and a communication module. The MCU control chip is used for centralized processing of information for all functions. The communication module transmits signals between the MCU control chip and multiple power modules through a communication protocol. The power distribution module is used to issue output voltage and current adjustment commands.
[0008] According to the above technical solution, each power module has a communication address, which can be a DIP switch, a button, or software communication, to distinguish the power modules from each other and facilitate accurate communication.
[0009] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: by connecting the third charging power module and the second charging power module in parallel on the first charging power module, the power of multiple power modules is distributed to the charging gun by utilizing the connection of the circuit, which increases the power of the charging gun, reduces the charging time, improves the efficiency of the charging pile, saves energy, and has a lower cost compared with other power distribution methods. Attached Figure Description
[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is the circuit diagram of the power supply module of this utility model; Figure 2 This is the control logic diagram of this utility model; In the diagram: 1. Second charging power module; 2. First charging power module; 3. Control unit; 4. DC relay; 5. Third charging power module. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] Please see Figure 1This utility model provides a technical solution: a multi-gun power distribution system for charging piles, comprising multiple charging guns and multiple parallel power modules. The power modules are connected to the charging guns and provide power. Each power module includes multiple parallel first charging power modules 2, each connected to a corresponding charging gun. A third charging power module 5 and a second charging power module 1 are connected in parallel to each first charging power module 2. The charging power of the first charging power modules 2, second charging power modules 1, and third charging power modules 5 are all different. Multiple second charging power modules 1 are sequentially connected via DC relays 4, and adjacent second charging power modules 1 are connected via DC relays 4. The third charging power modules 5 are also connected in parallel to the first charging power modules via DC relays 4. Block 2 also includes a control unit 3, which is connected to the power module and the DC relay 4. The control unit 3 is used to control the start-up of the charging power module and to regulate the voltage, current, and power of the power module. By operating the DC relay 4 through the control unit 3, the first charging power module 2 or the third charging power module 5 is connected in parallel to the second charging power module 1, adjusting the power in the charging circuit so that the power can match the power demand of the charging vehicle. The charging gun prioritizes the use of the second charging power module 1. If the power is insufficient, the first charging power module 2 or the third charging power module 5 is connected to meet the charging power of the vehicle. At the same time, according to the power demand of the vehicle, a suitable power module is selected so that the charging power is close to the power of the car, thereby improving the utilization rate of the power module.
[0013] A circuit is connected in series on the first charging power module 2, and the first charging power module 2 and the third charging power module 5 are connected in parallel on the circuit. A DC relay 4 is connected to the first charging power module 2 and the third charging power module 5. The third charging power module 5 is connected in parallel on the first charging power module 2 through the DC relay 4.
[0014] Two adjacent third charging power modules 5 are distributed on both sides of the first charging power module 2, so that each charging gun has a third charging power module 5 connected in parallel on both sides, and each charging gun is connected to a different power module. The power of the charging gun is adjusted by the parallel connection of multiple power modules.
[0015] like Figure 2As shown, the control unit 3 includes an MCU control chip, a power distribution module, and a communication module. The MCU control chip is used for centralized processing of information for all functions. The communication module transmits signals between the MCU control chip and multiple power modules through a communication protocol. The power distribution module is used to issue output voltage and current adjustment commands. The control unit 3 communicates with the power modules using CAN communication. Through the communication protocol between the control unit 3 and the power modules, it completes the adjustment of information such as voltage, current, and power. It makes the most reasonable parameter adjustments in real time according to the charging vehicle's demand information and the charging pile's own output parameters, ensuring that the charging process is in a fast, safe, and efficient state. The power distribution unit communicates with each module and issues output voltage and current adjustment commands to accurately adjust the charging power. Then, it controls the DC relay to connect to each corresponding charging circuit. The power modules can be set with their communication addresses to distinguish them from each other, facilitating accurate communication.
[0016] Each power module has a communication address, which can be a DIP switch, a button, or software communication address.
[0017] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multi-gun power distribution system for a charging pile, comprising multiple charging guns and multiple parallel-connected power modules, wherein the power modules are connected to the charging guns and provide power to the charging guns, characterized in that: The power module includes multiple first charging power modules connected in parallel. A third charging power module and a second charging module are connected in parallel to each first charging power module. The charging power of the first, second, and third charging power modules are all different. The multiple second charging power modules are connected through a DC relay. The power module also includes a control unit, which is connected to the power module and the DC relay. The control unit is used to control the start-up of the power module and to regulate the voltage, current, and power of the power module.
2. The charging pile multi-gun power distribution system according to claim 1, characterized in that: The first charging power module is connected in series with a circuit, and the first charging power module and the third charging power module are connected in parallel with the circuit. DC relays are connected to the first charging power module and the third charging power module.
3. The charging pile multi-gun power distribution system according to claim 2, characterized in that: The two adjacent third charging power modules are distributed on both sides of the first charging power module.
4. The charging pile multi-gun power distribution system according to claim 1, characterized in that: The control unit includes an MCU control chip, a power distribution module, and a communication module. The MCU control chip is used for centralized processing of information for all functions. The communication module transmits signals between the MCU control chip and multiple power modules through a communication protocol. The power distribution module is used to issue output voltage and current adjustment commands.
5. A multi-gun power distribution system for charging piles according to claim 4, characterized in that: Each of the power modules has a communication address, which can be a DIP switch, a button, or software communication.