A charging system

Abstract

The utility model provides a kind of charging system, comprising: first to N power pool;First to N gun group, with first to N power pool one to one correspondence, each gun group includes M charging gun, wherein, charging gun in the i gun group is connected to i power pool, and is connected to i+1 power pool, charging gun in N gun group is connected to N power pool, and is connected to first power pool, wherein, N is the integer greater than 1, M is positive integer, i takes 1 to N-1.The utility model can improve the single terminal output power of charging terminal by sharing power pool, and in the case where the sharing logic of entire system is kept unchanged, subsequent can be conveniently continuously expanded the quantity scale of split pile, to constantly improve the power scale of entire system, and lower cost and simple and convenient implementation.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, and specifically to a charging system. Background Technology

[0002] To improve charging efficiency and layout flexibility, charging stations are increasingly adopting a split-type charging pile layout. With the development of fast charging technology for electric vehicles, the requirements for charging power are also increasing. If the requirements are met by increasing the output power of each charging cabinet, it will require continuous upgrading of the charging cabinet hardware, which is costly and difficult to construct. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a charging system that can increase the output power of a single charging terminal by sharing a power pool. Furthermore, while maintaining the sharing logic of the entire system, the number of split charging piles can be easily and continuously expanded, thereby continuously increasing the power scale of the entire system. The system is low in cost and simple and convenient to implement.

[0004] The technical solution adopted in this utility model is as follows: A charging system includes: a first to an Nth power pool; a first to an Nth charging gun group, each corresponding to one of the first to Nth power pools, each charging gun group including M charging guns, wherein the charging guns in the i-th charging gun group are connected to the i-th power pool and connected to the (i+1)-th power pool, and the charging guns in the N-th charging gun group are connected to the N-th power pool and connected to the first power pool, wherein N is an integer greater than 1, M is a positive integer, and i ranges from 1 to N-1.

[0005] Furthermore, N is an even number. The j-th power cell and the (j+1)-th power cell form a dual-cell charging cabinet. The M charging guns in the j-th gun group serve as the first charging guns of the M dual-gun charging terminals, and the M charging guns in the (j+1)-th gun group serve as the second charging guns of the M dual-gun charging terminals. The M dual-gun charging terminals and the dual-cell charging cabinet form a split charging station, where j is an odd number from 1 to N.

[0006] Furthermore, there exists a dual-battery charging cabinet consisting of the k-th power battery and the (k+1)-th power battery, and a single-battery charging cabinet consisting of the p-th power battery. The M charging guns in the k-th gun group serve as the first charging guns for the M dual-gun charging terminals, and the M charging guns in the (k+1)-th gun group serve as the second charging guns for the M dual-gun charging terminals. These M dual-gun charging terminals and the dual-battery charging cabinet together form a split charging station. The M charging guns in the p-th gun group serve as the charging guns for the M single-gun charging terminals. These M single-gun charging terminals and the single-battery charging cabinet together form a split charging station. Here, k ranges from 1 to N-1, p ranges from 1 to N, and p is not equal to k or k+1.

[0007] Furthermore, each power cell includes at least one power module.

[0008] Furthermore, in each dual-battery charging cabinet, the terminals of the power modules of the two power batteries are respectively located on opposite sides.

[0009] Furthermore, in each dual-battery charging cabinet, the terminals of the power modules for the two power batteries are respectively located in the left and right halves of the cabinet.

[0010] Furthermore, each charging gun in the i-th gun group is connected to the i-th power pool by connecting to a terminal of a power module in the i-th power pool, and to the i+1-th power pool by connecting to a terminal of a power module in the i-th power pool. Similarly, each charging gun in the N-th gun group is connected to the N-th power pool by connecting to a terminal of a power module in the N-th power pool, and to the first power pool by connecting to a terminal of a power module in the first power pool.

[0011] Furthermore, each charging gun is directly connected to the terminal of the corresponding power module via a cable.

[0012] Furthermore, when the charging gun in the i-th gun group is connected to the i-th power battery, each charging gun in the i-th gun group is directly connected to the terminal of a power module in the i-th power battery via a cable; when the charging gun in the N-th gun group is connected to the N-th power battery, each charging gun in the N-th gun group is directly connected to the terminal of a power module in the N-th power battery via a cable; when the charging gun in the i-th gun group is connected to the (i+1)-th power battery, it is achieved through a cable connection between the i-th power battery and the (i+1)-th power battery; when the charging gun in the N-th gun group is connected to the first power battery, it is achieved through a cable connection between the N-th power battery and the first power battery.

[0013] The beneficial effects of this utility model are: This invention, through the design of connection methods and corresponding logical topology, connects each charging gun to its corresponding power pool and to the next adjacent power pool. This can increase the output power of a single charging terminal by sharing power pools. Furthermore, while maintaining the shared logic of the entire system, the number of split charging stations can be easily and continuously expanded, thereby continuously increasing the power scale of the entire system. This approach is low-cost and simple and convenient to implement. Attached Figure Description

[0014] Figure 1 This is a block diagram of the charging system according to an embodiment of the present utility model; Figure 2 This is a block diagram of a charging system according to a specific embodiment of the present invention; Figure 3This is a block diagram of a charging system according to another specific embodiment of the present invention; Figure 4 This is a schematic diagram of the circuit connection of a charging system according to a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the circuit connection of a charging system according to another specific embodiment of the present invention. Detailed Implementation

[0015] 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.

[0016] like Figure 1 As shown, the charging system of this embodiment includes first to Nth power cells and first to Nth charging gun groups, with each of the first to Nth charging gun groups corresponding one-to-one with the first to Nth power cells. Each charging gun group includes M charging guns. The charging guns in the i-th charging gun group are connected to the i-th power cell and also to the (i+1)-th power cell. The charging guns in the N-th charging gun group are connected to the N-th power cell and also to the first power cell. Here, N is an integer greater than 1, M is a positive integer, and i ranges from 1 to N-1.

[0017] In the charging system of this utility model embodiment, a power pool and a corresponding charging gun group constitute a charging unit. Through the above connection method, N charging units can be arranged in sequence to form a ring logical topology. In this topology, each charging gun of each charging gun group is connected to the power pool of its own charging unit to obtain charging power; at the same time, each charging gun of each charging gun group is also connected to the power pool of the next adjacent charging unit to obtain charging power.

[0018] In an embodiment of this utility model, two adjacent power pools and their corresponding two charging gun groups can form a split-type charging station, or there may be at least one power pool and its corresponding charging gun group forming a split-type charging station. Thus, through the above connection method, the charging gun in one split-type charging station can obtain charging power from the power pool of the next split-type charging station, thereby realizing power sharing between split-type charging stations.

[0019] In one embodiment of this invention, the total number of power cells, or the total number of charging gun groups N, is an even number. The j-th power cell and the (j+1)-th power cell constitute a dual-cell charging cabinet. The M charging guns in the j-th charging gun group serve as the first charging guns of the M dual-gun charging terminals, and the M charging guns in the (j+1)-th charging gun group serve as the second charging guns of the M dual-gun charging terminals. These M dual-gun charging terminals and the dual-cell charging cabinet together form a split charging station. Here, j is an odd number from 1 to N.

[0020] In other words, N charging units are combined in pairs to form N / 2 split charging stations. Each split charging station has a dual-battery charging cabinet and a dual-gun charging terminal.

[0021] Taking N as 6 as an example, and to avoid line clutter, taking M as 1 as an example, such as... Figure 2 As shown, a total of three dual-battery charging cabinets (a, b, and c) and three dual-gun charging terminals (a, b, and c) are constructed. Each dual-battery charging cabinet and its corresponding dual-gun charging terminal form a split charging station, resulting in a total of three split charging stations. Figure 2 As shown, the first charging gun of the dual-gun charging terminal is connected to the two power cells of the corresponding dual-cell charging cabinet to obtain charging power. In addition to being connected to one power cell of the corresponding dual-cell charging cabinet, the second charging gun is also connected to one power cell of the next dual-cell charging cabinet to obtain charging power from one power cell of the next dual-cell charging cabinet, that is, sharing the power cell of the next split charging station.

[0022] In another embodiment of this utility model, a dual-battery charging cabinet is formed by the k-th power battery and the (k+1)-th power battery, and a single-battery charging cabinet is formed by the p-th power battery alone. Specifically, the M charging guns in the k-th gun group serve as the first charging guns of M dual-gun charging terminals, and the M charging guns in the (k+1)-th gun group serve as the second charging guns of M dual-gun charging terminals. These M dual-gun charging terminals and the dual-battery charging cabinet form a split charging station. Similarly, the M charging guns in the p-th gun group serve as the charging guns of M single-gun charging terminals, and these M single-gun charging terminals and the single-battery charging cabinet form a split charging station. Here, k ranges from 1 to N-1, p ranges from 1 to N, and p is not equal to k or k+1.

[0023] In other words, among N charging units, there are split charging stations consisting of two charging units combined, where the charging cabinet in the split charging station is a dual-battery charging cabinet and the charging terminal in the split charging station is a dual-gun charging terminal; at the same time, there are also split charging stations consisting of a single charging unit, where the charging cabinet in the split charging station is a single-battery charging cabinet and the charging terminal in the split charging station is a single-gun charging terminal.

[0024] Taking N = 5, k = 1 and 4, and p = 3 as an example, and to avoid line confusion, taking M = 1 as an example, as follows... Figure 3As shown, there are a total of three charging cabinets: a dual-battery charging cabinet d, a single-battery charging cabinet e, and a dual-battery charging cabinet f; and three charging terminals: a dual-gun charging terminal d, a single-gun charging terminal e, and a dual-gun charging terminal f. Each charging cabinet and its corresponding charging terminal form a separate charging station, resulting in a total of three separate charging stations. Figure 3 As shown, the first charging gun of the dual-gun charging terminal is connected to the two power cells of the corresponding dual-cell charging cabinet to obtain charging power. The second charging gun is connected to one power cell of the corresponding dual-cell charging cabinet, as well as one power cell of the next single-cell charging cabinet or the next dual-cell charging cabinet, to obtain charging power from the power cell of the next single-cell charging cabinet or the next dual-cell charging cabinet, that is, to share the power cell of the next split charging station. The charging gun of the single-gun charging terminal is connected to one power cell of the next charging cabinet, as well as one power cell of the next charging cabinet, to obtain charging power, that is, to share the power cell of the next split charging station.

[0025] Therefore, each charging terminal can share the power pool from other split charging stations, increasing the output power of a single terminal. Furthermore, under the above connection method and corresponding logical topology, if additional split charging stations are needed, they only need to be added to the aforementioned ring arrangement, and the connection lines of adjacent split charging cabinets can be simply adjusted. The charging system with added split charging stations still conforms to the above connection method and corresponding logical topology, and achieves an increase in the overall system power capacity. Moreover, the added split charging stations can consist of a dual-pool charging cabinet and a dual-gun charging terminal, or a single-pool charging cabinet and a single-gun charging terminal.

[0026] In an embodiment of this invention, the charging gun is connected to the power battery via a cable connection, eliminating the need for a switch in the circuit to switch the connected object.

[0027] In one embodiment of this utility model, each power cell includes at least one power module, and each power module has a corresponding terminal, which is its power output terminal and also its wiring terminal.

[0028] In an embodiment of this utility model, each charging gun in the i-th gun group is connected to the i-th power pool by connecting to a terminal of a power module in the i-th power pool, and is connected to the i+1-th power pool by connecting to a terminal of a power module in the i+1-th power pool. Each charging gun in the N-th gun group is connected to the N-th power pool by connecting to a terminal of a power module in the N-th power pool, and is connected to the first power pool by connecting to a terminal of a power module in the first power pool.

[0029] In each dual-battery charging cabinet, the terminals of the power modules of the two power batteries are respectively arranged on opposite sides. For example, the terminals of the power modules of one power battery can be arranged on the left side, and the terminals of the power modules of the other power battery can be arranged on the right side. In a specific embodiment of this utility model, referring to... Figure 4 The dual-battery charging cabinet is divided into a left half and a right half. The terminals of the power modules for one power battery can be located in the left half, and the terminals of the power modules for the other power battery can be located in the right half. This separate arrangement of the power module terminals for the two power batteries facilitates wiring, especially when adding separate charging stations for line adjustments.

[0030] In one embodiment of this invention, each charging gun is directly connected to the terminal of the corresponding power module via a cable.

[0031] In another embodiment of this utility model, when the charging gun in the i-th gun group is connected to the i-th power battery, each charging gun in the i-th gun group is directly connected to the terminal of a power module in the i-th power battery via a cable; when the charging gun in the N-th gun group is connected to the N-th power battery, each charging gun in the N-th gun group is directly connected to the terminal of a power module in the N-th power battery via a cable; when the charging gun in the i-th gun group is connected to the (i+1)-th power battery, it is achieved through a cable connection between the i-th power battery and the (i+1)-th power battery; when the charging gun in the N-th gun group is connected to the first power battery, it is achieved through a cable connection between the N-th power battery and the first power battery.

[0032] like Figure 4 As shown, the #1 split-type charging station includes a #1 dual-battery charging cabinet and dual-gun charging terminals #1 to #4 (only 4 dual-gun charging terminals are shown in the figure, so M can be considered as 4). The #2 split-type charging station includes a #2 dual-battery charging cabinet and dual-gun charging terminals #5 to #8. All the first charging guns 111 are connected to a terminal in the left half of the corresponding rectifier cabinet via cables, and this terminal is connected to a terminal in the right half of the cabinet via cables, thereby realizing the connection between the first charging gun 111 and the two power cells of the split-type charging station. All the second charging guns 222 are connected to a terminal in the right half of the corresponding rectifier cabinet via cables, and this terminal is connected to a terminal in another rectifier cabinet via cables, thereby realizing the connection between the second charging gun 222 and the power cell of the split-type charging station and the power cell of the next split-type charging station.

[0033] In this connection method, when connecting a charging gun to a non-corresponding power battery, it is achieved through a connecting cable between the corresponding and non-corresponding power batteries. This reduces cable length compared to connecting each charging gun to a non-corresponding power battery with a separate cable. Furthermore, the design of having the power module terminals of the two power batteries on separate sides provides wiring convenience for this connection method. The combination of these two aspects reduces the complexity of site cabling and lowers costs.

[0034] exist Figure 4 After adding a separate cabinet to the charging system shown, as shown Figure 5 As shown, after adding the #3 dual-battery charging cabinet and the #9-12 dual-gun charging terminals, compared to Figure 4 Only the connection lines need to be adjusted; the connection logic remains unchanged. Each second charging gun 222 still shares charging power from one power pool of the dual-pool charging cabinet of the next split-type charging station.

[0035] In summary, the charging system of this utility model, by designing the connection method and corresponding logical topology, connects each charging gun to its corresponding power pool and to the next adjacent power pool. This can increase the output power of a single charging terminal by sharing the power pool. Furthermore, while keeping the sharing logic of the entire system unchanged, the number of split charging piles can be easily and continuously expanded, thereby continuously increasing the power scale of the entire system. The system is low in cost and simple and convenient to implement.

[0036] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

Claims

1. A charging system, characterized in that, include: First to Nth power cells; The first to Nth charging groups correspond one-to-one with the first to Nth power cells, and each charging group includes M charging guns. In this configuration, the charging gun in the i-th gun group is connected to the i-th power pool and to the (i+1)-th power pool, and the charging gun in the N-th gun group is connected to the N-th power pool and to the first power pool. Here, N is an integer greater than 1, M is a positive integer, and i ranges from 1 to N-1.

2. The charging system according to claim 1, characterized in that, N is an even number. The j-th power cell and the (j+1)-th power cell form a dual-cell charging cabinet. The M charging guns in the j-th gun group serve as the first charging guns of the M dual-gun charging terminals, and the M charging guns in the (j+1)-th gun group serve as the second charging guns of the M dual-gun charging terminals. The M dual-gun charging terminals and the dual-cell charging cabinet form a split charging station. Here, j takes an odd number from 1 to N.

3. The charging system according to claim 1, characterized in that, There exists a dual-cell charging cabinet consisting of the k-th power cell and the (k+1)-th power cell, and there exists a single-cell charging cabinet consisting of the p-th power cell alone. Among them, the M charging guns in the k-th gun group serve as the first charging guns of the M dual-gun charging terminals, and the M charging guns in the k+1-th gun group serve as the second charging guns of the M dual-gun charging terminals. The M dual-gun charging terminals and the dual-battery charging cabinet constitute a split pile. The M charging guns in the p-th gun group serve as charging guns for M single-gun charging terminals, and these M single-gun charging terminals, together with the single-battery charging cabinet, form a split-type charging station. Where k takes values ​​from 1 to N-1, p takes values ​​from 1 to N, and p is not equal to k or k+1.

4. The charging system according to claim 2 or 3, characterized in that, Each power cell includes at least one power module.

5. The charging system according to claim 4, characterized in that, In each dual-battery charging cabinet, the terminals of the power modules of the two power batteries are respectively located on opposite sides.

6. The charging system according to claim 5, characterized in that, In each dual-battery charging cabinet, the terminals of the power modules for the two power batteries are respectively located in the left and right halves of the cabinet.

7. The charging system according to claim 4, characterized in that, Each charging gun in the i-th gun group is connected to the i-th power pool by connecting to a terminal of a power module in the i-th power pool, and to the (i+1)-th power pool by connecting to a terminal of a power module in the i-th power pool. Each charging gun in the N-th gun group is connected to the N-th power pool by connecting to a terminal of a power module in the N-th power pool, and to the first power pool by connecting to a terminal of a power module in the first power pool.

8. The charging system according to claim 7, characterized in that, Each charging gun is directly connected to the terminal of the corresponding power module via a cable.

9. The charging system according to claim 7, characterized in that, When a charging gun in the i-th charging group is connected to the i-th power battery, each charging gun in the i-th charging group is directly connected to a terminal of a power module in the i-th power battery via a cable; when a charging gun in the N-th charging group is connected to the N-th power battery, each charging gun in the N-th charging group is directly connected to a terminal of a power module in the N-th power battery via a cable; when a charging gun in the i-th charging group is connected to the (i+1)-th power battery, it is achieved through a cable connection between the i-th power battery and the (i+1)-th power battery; when a charging gun in the N-th charging group is connected to the first power battery, it is achieved through a cable connection between the N-th power battery and the first power battery.

Images