Split type charging device adopting annular wiring

Abstract

The utility model discloses a split type charging device adopting annular wiring. The system is composed of a charging cabinet and a charging terminal, a plurality of charging modules and a first-stage switch module are configured in the charging cabinet, and an external power supply provides power for the charging modules through a main incoming line loop; the output end of each charging module is uniformly connected to the first-stage switch module, and a plurality of voltage-adjustable annular buses are output after conversion of the first-stage switch module; and each charging terminal is hung on the two pairs of annular buses through the second-stage switch module, and the output power of the charging terminal is adjusted through the second-stage switch module. According to the utility model, an annular wiring mode is adopted to replace an original radial wiring mode, so that the number of cables and the on-site excavation / laying work amount are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of charging facilities, and more specifically, to a split charging device using ring wiring. Background Art

[0002] At present, the number of new energy vehicles continues to increase rapidly. At the same time, new energy vehicle charging stations are also showing a rapid development trend.

[0003] The core contradiction that charging facility operators encounter in the field of charging facility construction is the contradiction between construction scale and efficiency. They urgently need to find a device that can achieve a large-scale expansion of charging terminals at the lowest cost and maximize the construction scale while ensuring profits.

[0004] Patents such as "CN202410160096", "CN202321725933", and "CN202310864541" respectively disclose a charging stack intelligent scheduling system and scheduling method, a charging muzzle DC charging stack flexible dynamic power distribution device, and a charging stack power distribution system and method based on matrix control, which can realize the connection and dynamic power distribution of one charging cabinet to multiple charging terminals.

[0005] However, in the above method, on the one hand, no matter whether a rectangular switch unit or a ring connection of charging module groups is adopted, the number of charging terminals will be limited by the number of charging modules, and it is difficult to expand in large quantities; on the other hand, radial wiring is adopted from the charging cabinet (module) to the charging terminal, which requires laying a large number of cables, has poor economy and poor engineering feasibility. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a split-type charging device using ring wiring to meet the needs of a large number of expansions of charging terminals under limited charging module conditions, save a large amount of cable laying, and maintain the characteristic of dynamically adjustable power of each charging terminal.

[0007] The utility model discloses a split-type charging device adopting ring wiring, which is realized by the following technical scheme. The device consists of a charging cabinet and a charging terminal. A plurality of charging modules and a first-stage switch module are arranged in the charging cabinet. An external power supply provides power to the charging module via a main incoming line circuit. The output end of each charging module is uniformly connected to the first-stage switch module, and a plurality of voltage-adjustable ring busbars are output after transformation by the first-stage switch module. Each charging terminal is hung on two pairs of ring busbars through a second-stage switch module, and the output power of the charging terminal is adjusted through the second-stage switch module.

[0008] According to the charging needs of each charging vehicle, the control strategy is configured to achieve dynamic adjustment of the output of each charging gun by adjusting the output voltage of each ring bus and the second-level switch module on the charging terminal.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. Through the ring bus and two-stage switching (first-stage switch module, second-stage switch module), the connection between the charging cabinet and the charging terminal and the dynamic adjustment of power are realized, so that the number of charging terminals is no longer limited by the number of charging modules, and the number of terminals can be greatly expanded.

[0011] 2. The ring wiring method is used to replace the original radial wiring method, which greatly reduces the number of cables and the amount of on-site excavation / laying engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a principle block diagram of the utility model;

[0013] Figure 2 It is an implementation diagram of the present utility model. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0015] like Figure 1 As shown, the device consists of a charging cabinet 1 and a charging terminal 2. A plurality of charging modules and a first-stage switch module are arranged in the charging cabinet. An external power supply provides power to the charging module via a main incoming line circuit. The output end of each charging module is uniformly connected to the first-stage switch module, and a plurality of voltage-adjustable ring busbars are output after transformation by the first-stage switch module. Each charging terminal is connected to two pairs of ring busbars through a second-stage switch module, and the output power of the charging terminal is adjusted through the second-stage switch module.

[0016] like Figure 2 As shown, this is a schematic diagram of the utility model in engineering implementation, in which a plurality of voltage-adjustable ring busbars are led out of the charging cabinet, and each charging terminal (charging gun) is hung on two pairs of ring busbars.

[0017] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A split charging device using a ring connection, characterized in that: It consists of a charging cabinet and a charging terminal. The charging cabinet is equipped with multiple charging modules and a first-level switch module. An external power supply provides power to each charging module through a main incoming line loop; the output end of each charging module is uniformly connected to the first-level switch module, and after transformation by the first-level switch module, multiple voltage-adjustable ring busbars are output; each charging terminal is connected to two pairs of ring busbars through a second-level switch module, and the output power of the charging terminal is adjusted through the second-level switch module.

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