Flexible power distribution circuit of charging pile

Abstract

The utility model discloses a flexible power distribution circuit of a charging pile. Comprising a charging module M1 connected with a first charging gun, a charging module M2 connected with a second charging gun, a charging module M3 connected with a third charging gun, a charging module M4 connected with a fourth charging gun, a charging module M5 connected with a fifth charging gun, a charging module M6 connected with a sixth charging gun and a charging module M7 connected with a seventh charging gun. The charging module M8 is connected with the eighth charging gun, the charging module M9 is connected with the ninth charging gun, the charging module M10 is connected with the tenth charging gun, the charging module M11 is connected with the eleventh charging gun, and the charging module M12 is connected with the twelfth charging gun. Compared with a full-flexible matrix contactor scheme, due to the fact that the number of contactors is reduced, the occupied space is small, and the energy consumption is low; the cost is reduced. Through experimental verification, flexible power free allocation can be realized, and each charging power module can be greatly and fully utilized through first-level scheduling, second-level scheduling and third-level scheduling.

Description

Technical Field

[0001] The utility model relates to the field of new energy charging, in particular to a flexible power distribution circuit of a charging stack. Background Art

[0002] With the rapid development of new energy vehicles, the construction of charging facilities is also accelerating continuously. In the current field of electric vehicle charging equipment, when performing charging power distribution, contactors are generally used as basic components, and dynamic power is intelligently distributed by dividing different power module units.

[0003] In the prior art, a large number of contactors and copper bars are used to achieve flexible control during the charging distribution of multiple gun bodies. Therefore, it will cause a large amount of space occupation inside the charging pile, high cost, and poor economic practicability.

[0004] It can be seen that the flexible power distribution scheme in the prior art has the technical problems of large space occupation, high cost, and poor economic practicability. Summary of the Utility Model

[0005] To solve the above problems, the technical solution provides a flexible power distribution circuit of a charging stack.

[0006] To achieve the above object, the technical solution is as follows:

[0007] A flexible power distribution circuit of a charging stack includes a charging module M1 connected to a first charging gun, a charging module M2 connected to a second charging gun, a charging module M3 connected to a third charging gun, a charging module M4 connected to a fourth charging gun, a charging module M5 connected to a fifth charging gun, a charging module M6 connected to a sixth charging gun, a charging module M7 connected to a seventh charging gun, a charging module M8 connected to an eighth charging gun, a charging module M9 connected to a ninth charging gun, a charging module M10 connected to a tenth charging gun, a charging module M11 connected to an eleventh charging gun, and a charging module M12 connected to a twelfth charging gun;

[0008] It also includes contactors KM1 arranged between the charging module M1 and the charging module M2, contactors KM2 arranged between the charging module M1 and the charging module M3, contactors KM3 arranged between the charging module M2 and the charging module M3, contactors KM4 arranged between the charging module M4 and the charging module M5, contactors KM5 arranged between the charging module M4 and the charging module M6, contactors KM6 arranged between the charging module M5 and the charging module M6, contactors KM7 arranged between the charging module M7 and the charging module M8, contactors KM8 arranged between the charging module M7 and the charging module M9, contactors KM9 arranged between the charging module M8 and the charging module M9, contactors KM10 arranged between the charging module M10 and the charging module M11, contactors KM11 arranged between the charging module M10 and the charging module M12, and contactors KM12 arranged between the charging module M11 and the charging module M12.

[0009] In some embodiments, it also includes contactors KM13 arranged between the first charging gun and the seventh charging gun, contactors KM14 arranged between the second charging gun and the eighth charging gun, contactors KM15 arranged between the third charging gun and the ninth charging gun, contactors KM16 arranged between the fourth charging gun and the tenth charging gun, contactors KM17 arranged between the fifth charging gun and the eleventh charging gun, and contactors KM18 arranged between the sixth charging gun and the twelfth charging gun.

[0010] In some embodiments, it also includes contactors KM19 arranged between the first charging gun and the fourth charging gun, contactors KM21 arranged between the third charging gun and the sixth charging gun, contactors KM24 arranged between the seventh charging gun and the tenth charging gun, and contactors KM26 arranged between the ninth charging gun and the twelfth charging gun.

[0011] In some embodiments, it also includes contactors KM20 arranged between the second charging gun and the fifth charging gun and contactors KM25 arranged between the eighth charging gun and the eleventh charging gun.

[0012] In some embodiments, it also includes contactors KM22 arranged between the third charging gun and the twelfth charging gun and contactors KM23 arranged between the first charging gun and the tenth charging gun.

[0013] The beneficial effects of this application are as follows:

[0014] Compared with the fully flexible matrix contactor solution, this application has fewer contactors, occupies less space, and reduces costs. Through experimental verification, flexible power allocation can be achieved. By means of primary scheduling, secondary scheduling, and tertiary scheduling, each charging power module can be fully utilized, providing a new solution for the application of charging piles. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below.

[0016] Figure 1 It is a schematic structural diagram of Embodiment 1 of the embodiments of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of Embodiment 2 of the embodiments of the present utility model. Detailed Embodiments

[0018] In order to make the technical problems, technical solutions, and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] Please refer to Figure 1-2 As shown, in Embodiment 1, a flexible power distribution circuit of a charging pile includes a charging module M1 connected to a first charging gun, a charging module M2 connected to a second charging gun, a charging module M3 connected to a third charging gun, a charging module M4 connected to a fourth charging gun, a charging module M5 connected to a fifth charging gun, a charging module M6 connected to a sixth charging gun, a charging module M7 connected to a seventh charging gun, a charging module M8 connected to an eighth charging gun, a charging module M9 connected to a ninth charging gun, a charging module M10 connected to a tenth charging gun, a charging module M11 connected to an eleventh charging gun, and a charging module M12 connected to a twelfth charging gun;

[0020] It also includes contactors KM1 arranged between the charging module M1 and the charging module M2, contactors KM2 arranged between the charging module M1 and the charging module M3, contactors KM3 arranged between the charging module M2 and the charging module M3, contactors KM4 arranged between the charging module M4 and the charging module M5, contactors KM5 arranged between the charging module M4 and the charging module M6, contactors KM6 arranged between the charging module M5 and the charging module M6, contactors KM7 arranged between the charging module M7 and the charging module M8, contactors KM8 arranged between the charging module M7 and the charging module M9, contactors KM9 arranged between the charging module M8 and the charging module M9, contactors KM10 arranged between the charging module M10 and the charging module M11, contactors KM11 arranged between the charging module M10 and the charging module M12, and contactors KM12 arranged between the charging module M11 and the charging module M12.

[0021] Specifically, it also includes contactors KM13 arranged between the first charging gun and the seventh charging gun, contactors KM14 arranged between the second charging gun and the eighth charging gun, contactors KM15 arranged between the third charging gun and the ninth charging gun, contactors KM16 arranged between the fourth charging gun and the tenth charging gun, contactors KM17 arranged between the fifth charging gun and the eleventh charging gun, and contactors KM18 arranged between the sixth charging gun and the twelfth charging gun.

[0022] Specifically, it also includes contactors KM19 arranged between the first charging gun and the fourth charging gun, contactors KM21 arranged between the third charging gun and the sixth charging gun, contactors KM24 arranged between the seventh charging gun and the tenth charging gun, and contactors KM26 arranged between the ninth charging gun and the twelfth charging gun.

[0023] This application provides a flexible power distribution solution for a charging stack to solve the technical problems of large occupied space, high cost, and poor economic practicality in the existing flexible power distribution solution. To solve the above technical problems, this application provides a flexible power distribution solution for a charging stack. It includes a charging module unit, contactors, and charging guns. The relationships among the three are as follows:

[0024]

[0025] Power distribution scheduling design logic:

[0026] 1. Direct connection part: Gun 1 is directly connected to module M1, Gun 2 is directly connected to module M2, Gun 3 is directly connected to module M3, Gun 4 is directly connected to module M4, Gun 5 is directly connected to module M5, Gun 6 is directly connected to module M6, Gun 7 is directly connected to module M7, Gun 8 is directly connected to module M8, Gun 9 is directly connected to module M9, Gun 10 is directly connected to module M10, Gun 11 is directly connected to module M11, Gun 12 is directly connected to module M12;

[0027] 2. Contactor scheduling part:

[0028] Closing contactor KM1 is to allocate module M2 to Gun 1, or to allocate module M1 to Gun 2;

[0029] Closing contactor KM2 is to allocate module M3 to Gun 1, or to allocate module M1 to Gun 3;

[0030] Closing contactor KM3 is to allocate module M3 to Gun 2, or to allocate module M2 to Gun 3;

[0031] Closing contactor KM4 is to allocate module M5 to Gun 4, or to allocate module 4M to Gun 5;

[0032] Closing contactor KM5 is to allocate module M6 to Gun 4, or to allocate module M4 to Gun 6;

[0033] Closing contactor KM6 is to allocate module M6 to Gun 5, or to allocate module M5 to Gun 6;

[0034] Closing contactor KM7 is to allocate module M8 to Gun 7, or to allocate module M7 to Gun 8;

[0035] Closing contactor KM8 is to allocate module M9 to Gun 7, or to allocate module M7 to Gun 9;

[0036] Closing contactor KM9 is to allocate module M9 to Gun 8, or to allocate module M8 to Gun 9;

[0037] Closing contactor KM10 is to allocate module M11 to Gun 10, or to allocate module M10 to Gun 11; Closing contactor KM11 is to allocate module M12 to Gun 10, or to allocate module M10 to Gun 12; Closing contactor KM12 is to allocate module M12 to Gun 11, or to allocate module M11 to Gun 12; Closing contactor KM13 is to allocate module M1 to Gun 7, or to allocate module M7 to Gun 1;

[0038] Closing the KM14 contactor is for allocating module M2 to 8 guns, or for allocating module M8 to 2 guns;

[0039] Closing the KM15 contactor is for allocating module M3 to 9 guns, or for allocating module M9 to 3 guns;

[0040] Closing the KM16 contactor is for allocating module M4 to 10 guns, or for allocating module M10 to 4 guns; Closing the KM17 contactor is for allocating module M5 to 11 guns, or for allocating module M11 to 5 guns; Closing the KM18 contactor is for allocating module M6 to 12 guns, or for allocating module M12 to 6 guns; Closing the KM19 contactor is for allocating module M4 to 1 gun, or for allocating module M1 to 4 guns;

[0041] Closing the KM20 contactor is for allocating module M5 to 2 guns, or for allocating module M2 to 5 guns;

[0042] Closing the KM21 contactor is for allocating module M6 to 3 guns, or for allocating module M3 to 6 guns;

[0043] Closing the KM22 contactor is for allocating module M12 to 3 guns, or for allocating module M3 to 12 guns; Closing the KM23 contactor is for allocating module M10 to 1 gun, or for allocating module M1 to 10 guns; Closing the KM24 contactor is for allocating module M10 to 7 guns, or for allocating module M7 to 10 guns; Closing the KM25 contactor is for allocating module M11 to 8 guns, or for allocating module M8 to 11 guns; Closing the KM26 contactor is for allocating module M12 to 9 guns, or for allocating module M9 to 12 guns;

[0044] Specific description of the power distribution scheme:

[0045] According to the power distribution design logic, the power distribution scheme can be divided into primary scheduling, secondary scheduling, and tertiary scheduling. The following will be described in detail.

[0046] Primary scheduling: The power of the charging module needs to pass through 1 contactor to be allocated to this gun. (Example: Closing the KM1 contactor can allocate the power of module M2 to gun 1, so it is called primary scheduling).

[0047] Secondary scheduling: The power of the charging module needs to pass through 2 contactors to be allocated to this gun. (Example: Closing the KM19 and KM4 contactors can allocate the power of module M4 and module M5 to gun 1. Among them, the power of module M5 passes through 2 contactors to be allocated to gun 1, so it is called secondary scheduling).

[0048] Three - level scheduling: The power of the charging module needs to pass through 3 contactors to be allocated to the gun. (Example: Closing contactors KM19, KM4, and KM17 can allocate the power of module M4, module M5, and module M11 to gun 1. Among them, module M11 passes through 3 contactors to be allocated to gun 1, so it is called three - level scheduling).

[0049] When performing power distribution, first - level scheduling is preferred. When the charging power cannot be satisfied after first - level scheduling, second - level scheduling is used. When second - level scheduling still cannot meet the requirement, third - level scheduling is used.

[0050] For a charging gun that has been started, the modules directly connected and bound to it cannot be used for the scheduling of other charging guns. (Example: When gun 1 is charging, no other gun can call module M1).

[0051] When the charging gun corresponding to a scheduled module needs to start charging, the scheduling of this module should be cancelled. (Example: When gun 1 starts charging, contactor KM1 is closed and module M2 is called. At this time, if gun 2 also needs to charge, then gun 1 must disconnect contactor KM1 and cancel the call to module M2).

[0052] In Example 1, contactors KM20 / KM22 / KM23 / KM25 are cancelled compared to Example 2. Although this design change reduces the flexibility of power distribution, it still has a good flexible power distribution function. This change plan simplifies the structural space design by cancelling contactors (KM20 / KM22 / KM23 / KM25), reduces costs, and can also achieve the flexible power distribution of the charging stack, with higher economic practical value.

[0053] Example 2 also includes contactor KM20 arranged between the second charging gun and the fifth charging gun and contactor KM25 arranged between the eighth charging gun and the eleventh charging gun.

[0054] Example 2 also includes contactor KM22 arranged between the third charging gun and the twelfth charging gun and contactor KM23 arranged between the first charging gun and the tenth charging gun.

[0055] The above are only the preferred embodiments of the present application, and are not used to limit the scope of implementation of the present application. Other embodiments with the same or similar principles and basic structures as the present application are within the protection scope of the present application.

Claims

1. A flexible power distribution circuit for a charging stack, characterized in that It includes a charging module M1 connected to the first charging gun, a charging module M2 connected to the second charging gun, a charging module M3 connected to the third charging gun, a charging module M4 connected to the fourth charging gun, a charging module M5 connected to the fifth charging gun, a charging module M6 connected to the sixth charging gun, a charging module M7 connected to the seventh charging gun, a charging module M8 connected to the eighth charging gun, a charging module M9 connected to the ninth charging gun, a charging module M10 connected to the tenth charging gun, a charging module M11 connected to the eleventh charging gun, and a charging module M12 connected to the twelfth charging gun; It further includes a contactor KM1 arranged between the charging module M1 and the charging module M2, a contactor KM2 arranged between the charging module M1 and the charging module M3, a contactor KM3 arranged between the charging module M2 and the charging module M3, a contactor KM4 arranged between the charging module M4 and the charging module M5, a contactor KM5 arranged between the charging module M4 and the charging module M6, a contactor KM6 arranged between the charging module M5 and the charging module M6, a contactor KM7 arranged between the charging module M7 and the charging module M8, a contactor KM8 arranged between the charging module M7 and the charging module M9, a contactor KM9 arranged between the charging module M8 and the charging module M9, a contactor KM10 arranged between the charging module M10 and the charging module M11, a contactor KM11 arranged between the charging module M10 and the charging module M12, and a contactor KM12 arranged between the charging module M11 and the charging module M12.

2. The flexible power distribution circuit of a charging stack according to claim 1, characterized in that: It further includes a contactor KM13 arranged between the first charging gun and the seventh charging gun, a contactor KM14 arranged between the second charging gun and the eighth charging gun, a contactor KM15 arranged between the third charging gun and the ninth charging gun, a contactor KM16 arranged between the fourth charging gun and the tenth charging gun, a contactor KM17 arranged between the fifth charging gun and the eleventh charging gun, and a contactor KM18 arranged between the sixth charging gun and the twelfth charging gun.

3. The flexible power distribution circuit of a charging stack according to claim 2, characterized in that: It further includes a contactor KM19 arranged between the first charging gun and the fourth charging gun, a contactor KM21 arranged between the third charging gun and the sixth charging gun, a contactor KM24 arranged between the seventh charging gun and the tenth charging gun, and a contactor KM26 arranged between the ninth charging gun and the twelfth charging gun.

4. The flexible power distribution circuit of a charging stack according to claim 3, characterized in that: It further includes a contactor KM20 arranged between the second charging gun and the fifth charging gun and a contactor KM25 arranged between the eighth charging gun and the eleventh charging gun.

5. The flexible power distribution circuit of a charging stack according to claim 4, characterized in that: It further includes a contactor KM22 arranged between the third charging gun and the twelfth charging gun and a contactor KM23 arranged between the first charging gun and the tenth charging gun.

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