A rectifier cabinet

Abstract

The utility model provides a rectifier cabinet. The rectifier cabinet provided by the utility model includes a cabinet body and a matrix control board arranged inside the cabinet body, an output distribution module, and a plurality of rectifier modules; the output distribution module includes a plurality of first copper bars and a plurality of DC contactors; the first end of each first copper bar is connected to at least one of the rectifier modules, and the second end of each first copper bar is connected to a power output port; one DC contactor is electrically connected between every two first copper bars; the matrix control board is connected to the control end of the DC contactor, and the matrix control board is used to control the opening and closing of the DC contactor. The rectifier cabinet of the utility model can increase the power output unit, and the output power of each unit can be adjusted by the matrix control board to achieve the simultaneous output of different powers.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging, in particular to a rectifier cabinet. Background Art

[0002] As an important part of the new energy strategy and smart grid, electric vehicles have become the focus of the development of China's automobile industry and energy industry. In the market application of electric vehicles, charging difficulty is one of its biggest pain points. Among them, the problems of low output power and single output power of existing charging piles are particularly prominent, affecting the development of the electric vehicle industry and the user experience of car owners. Therefore, technicians in this field are in urgent need of solving existing technical problems, improving the charging efficiency of charging piles, and achieving different charging power outputs. Utility Model Content

[0003] The utility model aims to provide a rectifier cabinet to solve the technical problems of low output power and single output power of charging piles in the prior art.

[0004] The technical solution of the utility model is as follows: a rectifier cabinet is provided, comprising a cabinet body and a matrix control board, an output distribution module, and a plurality of rectifier modules arranged inside the cabinet body;

[0005] The output distribution module includes a plurality of first copper bars and a plurality of DC contactors; the first end of each of the first copper bars is connected to at least one of the rectifier modules, and the second end of each of the first copper bars is connected to a power output port; one of the DC contactors is electrically connected between every two of the first copper bars;

[0006] The matrix control board is connected to the control end of the DC contactor, and the matrix control board is used to control the opening and closing of the DC contactor.

[0007] Preferably, the output distribution module further includes a plurality of second copper bars, and the first copper bars are connected to the DC contactor through the second copper bars.

[0008] Preferably, the rectifier cabinet includes 26 rectifier modules, the output power of each rectifier module is 40 kW, and the output distribution module includes 24 first copper bars.

[0009] Preferably, the first copper busbar includes a super-charged copper busbar and a normal-charged copper busbar, and the number of the super-charged copper busbars connected to the rectifier modules is greater than the number of the normal-charged copper busbars connected to the rectifier modules.

[0010] Preferably, the super-charged copper bar is connected to a first fuse, the normal-charged copper bar is connected to a second fuse, and the rated current of the first fuse is greater than the rated current of the second fuse.

[0011] Preferably, a power module is further provided in the cabinet, and the power module includes an incoming molded case circuit breaker, a current transformer, an AC contactor and an AC meter which are arranged in sequence from bottom to top.

[0012] Preferably, a safety protection module is further provided in the cabinet, and the safety protection module includes a cabinet circuit breaker, a lightning arrester and a lightning protection switch.

[0013] Preferably, the rectifier cabinet also includes a cabinet door, on which an interactive module is provided, and the interactive module includes a billing unit, a touch screen, an LED indicator light arranged on the left side of the touch screen, and a card reader arranged on the right side of the touch screen, which are arranged in sequence from top to bottom.

[0014] Preferably, the cabinet door includes a front cabinet door and a rear cabinet door, the interactive module is arranged on the front cabinet door, and the rear cabinet door is also provided with a heat dissipation module, and the heat dissipation module includes a heat dissipation fan and a fan control panel arranged in sequence from top to bottom.

[0015] Preferably, the cabinet includes a first layer and a second layer, the matrix control board and the rectifier module are arranged on the first layer of the cabinet; and the output distribution module is arranged on the second layer of the cabinet.

[0016] The beneficial effect of the utility model is that the opening and closing of the DC contactor is controlled by the matrix control board, so that the rectifier modules connected to different first copper bars can be flexibly combined to increase the output power of a single first copper bar. By setting a plurality of output distribution modules and first copper bars, the power output units can be increased, and the output power of each unit can be adjusted by the matrix control board to achieve simultaneous output of different powers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front elevation view of a rectifier cabinet according to an embodiment of the utility model;

[0018] Figure 2 This is a rear elevation view of a rectifier cabinet according to an embodiment of the utility model;

[0019] Figure 3 This is a front side view of a rectifier cabinet according to an embodiment of the utility model;

[0020] Figure 4 This is a back side view of a rectifier cabinet according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the left and right rear cabinet doors of the rectifier cabinet according to an embodiment of the utility model.

[0022] Figure markings: 10-cabinet; 20-rectifier module; 30-output distribution module; 31-first copper bar; 311-supercharging copper bar; 32-second copper bar; 33-DC contactor; 40-matrix control board; 51-first fuse; 52-second fuse; 60-power module; 61-incoming molded case circuit breaker; 62-current transformer; 63-AC contactor; 64-AC meter; 71-cabinet circuit breaker; 72-lightning arrester; 73-lightning protection switch; 80-interaction module; 81-billing unit; 82-touch screen; 83-LED indicator; 84-card reader; 90-heat dissipation module; 91-heat dissipation fan; 92 fan control board. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] Figure 1 It is a front elevation view of a rectifier cabinet of an embodiment of the present utility model. It should be noted that if there is substantially the same result, the embodiment of the present utility model is not based on Figure 1 The structure shown is limited. Figure 1 As shown, the rectifier cabinet includes a cabinet body 10 and a matrix control board 40, an output distribution module 30, and a plurality of rectifier modules 20 arranged inside the cabinet body 10;

[0026] The output distribution module 30 includes a plurality of first copper bars 31 and a plurality of DC contactors 33; the first end of each of the first copper bars 31 is connected to at least one of the rectifier modules 20, and the second end of each of the first copper bars 31 is connected to a power output port; one DC contactor 33 is electrically connected between every two of the first copper bars 31;

[0027] The matrix control board 40 is connected to the control end of the DC contactor 33 , and the matrix control board 40 is used to control the opening and closing of the DC contactor 33 .

[0028] In this embodiment, the first end of each first copper bar 31 is connected to a plurality of rectifier modules 20, and the specific number of rectifier modules 20 connected to each first copper bar 31 can be adjusted according to actual needs; the opening and closing of the DC contactor 33 is controlled by the matrix control board 40, so that the rectifier modules 20 connected to different first copper bars 31 can be flexibly combined to increase the output power of a single first copper bar 31. By providing a plurality of first copper bars 31, the power output unit can be increased, and the output power of each unit can be adjusted by the matrix control board 40 to achieve simultaneous output of different powers.

[0029] In some embodiments, the output distribution module 30 further includes a plurality of second copper bars 32 , and the first copper bars 31 are connected to the DC contactor 33 through the second copper bars 32 .

[0030] In this embodiment, there is a certain distance between different first copper bars 31, and they cannot be directly connected through the DC contactor 33. The second copper bar 32 is used for auxiliary wiring. The connection distance between the first copper bar 31 and the DC contactor 33 is extended by the second copper bar 32. When the DC contactor 33 is arranged between the first copper bars 31, there is no space restriction, thereby improving the flexibility of the layout.

[0031] In some embodiments, Figure 1 As shown, the rectifier cabinet includes 26 rectifier modules 20 , the output power of each rectifier module 20 is 40 kW, and the output distribution module 30 includes 24 first copper bars 31 .

[0032] In this embodiment, the rectifier cabinet includes 26 rectifier modules 20, and the output power of each rectifier module 20 is 40kW. Theoretically, the output of a single first copper bus 31 can reach 1040kW. The output distribution module 30 includes 24 first copper buses 31, which can realize charging of up to 24 terminals at the same time, greatly enhancing the output efficiency of the rectifier cabinet in this embodiment.

[0033] It should be noted that the 24 first copper bars 31 are all located at the front end of the cabinet 10. Figure 1 Only 12 first copper bars 31 are shown in the figure, and the remaining 12 first copper bars 31 are located in the lower middle part of the front end of the cabinet 10, which are not clearly shown in the figure.

[0034] In some embodiments, Figure 1 As shown, the first copper bar 31 includes a super-charge copper bar 311 and a general-charge copper bar, and the number of the super-charge copper bar 311 connected to the rectifier modules 20 is greater than the number of the general-charge copper bar connected to the rectifier modules 20.

[0035] In this embodiment, if Figure 1As shown, the first copper bars 31 include super-charging copper bars 311 and general-charging copper bars. The first copper bars 31 located at the left and right ends of the output distribution module 30 are super-charging copper bars 311, and the remaining first copper bars 31 are general-charging copper bars. The number of rectifier modules 20 connected to the super-charging copper bars 311 is greater than the number of rectifier modules 20 connected to the general-charging copper bars. After the rectifier modules 20 of different first copper bars 31 are flexibly combined by controlling the opening and closing of the DC contactor 33 through the matrix control board 40, the maximum output power of the super-charging copper bar 311 is higher than the maximum output power of the general-charging copper bar.

[0036] In a specific embodiment, the number of rectifier modules 20 is 26, and the output power of each rectifier module 20 is 40KW; the number of super-charging copper bars 311 is 2, and the number of general-charging copper bars is 22. Each super-charging copper bar 311 is connected to 2 rectifier modules 20, and the number of rectifier modules 20 connected to each general-charging copper bar is 1. By controlling the opening and closing of the DC contactors 33 between different first copper bars 31, the rectifier modules 20 connected to different first copper bars 31 can be freely combined, and the output power of each general-charging copper bar can be 40kW, 80kW, 120kW, 160kW, 200kW, 240kW, 280kW, 320kW, 360kW, 400kW, The power of each super-charging copper bar 311 can be 80kW, 120kW, 160kW, 200kW, 240kW, 280kW, 320kW, 360kW, 400kW, 440kW, 480kW, 520kW, 560kW, 600kW, 640kW, 680kW, 720kW, 760kW, 800kW, 840kW, 880kW, 920kW, 960kW, 1000kW, 1040kW. In practical applications, the output power of the super-charging copper bar 311 or the general-charging copper bar can be adjusted according to demand, so as to achieve the purpose of flexible power adjustment.

[0037] In some embodiments, Figure 1 As shown, the super-charged copper bar 311 is connected to a first fuse 51 , and the normal-charged copper bar is connected to a second fuse 52 , and the rated current of the first fuse 51 is greater than the rated current of the second fuse 52 .

[0038] In this embodiment, the supercharge copper bar 311 is connected to the first fuse 51, and the normal charge copper bar is connected to the second fuse 52. The rated current of the first fuse 51 is greater than the rated current of the second fuse 52. The first fuse 51 is connected in series to the supercharge power output port, and the second fuse 52 is connected in series to the normal charge power output port. The rated currents of the first fuse 51 and the second fuse 52 can be set according to actual needs.

[0039] In some embodiments, Figure 1 As shown, a power module 60 is further provided in the cabinet 10 , and the power module 60 includes an incoming molded case circuit breaker 61 , a current transformer 62 , an AC contactor 63 and an AC meter 64 which are arranged in sequence from bottom to top.

[0040] In this embodiment, the power module 60 is used to connect AC power from the outside to the rectifier module 20, and the incoming line mode of the incoming molded case circuit breaker 61 adopts the bottom incoming line, which is convenient for wiring at the construction site and improves the installation efficiency; the power module 60 also includes a current transformer 62, an AC contactor 63 and an AC meter 64.

[0041] In some embodiments, Figure 2 This is a rear view of the rectifier cabinet of the utility model embodiment, as shown in Figure 1 and Figure 2 As shown, a safety protection module is also provided in the cabinet 10 , and the safety protection module includes a cabinet circuit breaker 71 , a lightning arrester 72 and a lightning protection switch 73 .

[0042] In this embodiment, the safety protection module is used for safety protection. The safety protection module includes a cabinet circuit breaker 71, a lightning arrester 72 and a lightning protection switch 73. When a short circuit or overload fault occurs in the circuit, the current can be quickly cut off to prevent the accident from expanding, thereby ensuring the safety of the circuit and equipment, and greatly reducing the damage caused by lightning strikes to the rectifier cabinet.

[0043] In some embodiments, Figure 3 This is a front side view of a rectifier cabinet according to an embodiment of the utility model. Figure 3 As shown, the rectifier cabinet also includes a cabinet door, on which an interactive module 80 is provided. The interactive module 80 includes a billing unit 81, a touch screen 82, an LED indicator light 83 arranged on the left side of the touch screen 82, and a card reader 84 arranged on the right side of the touch screen 82, which are arranged in sequence from top to bottom.

[0044] In this embodiment, the interactive module 80 is used for human-computer interaction. The interactive module 80 is designed at a position on the cabinet door suitable for user operation, including a billing unit 81 and a touch screen 82 for billing, an LED indicator light 83 arranged on the left side of the touch screen 82, and a card reader 84 arranged on the right side of the touch screen 82.

[0045] In some embodiments, Figure 3 and Figure 4 As shown, the cabinet door includes a front cabinet door and a rear cabinet door, the interactive module 80 is arranged on the front cabinet door, and the rear cabinet door is also provided with a heat dissipation module 90, and the heat dissipation module 90 includes a heat dissipation fan 91 and a fan control panel 92 arranged in sequence from top to bottom.

[0046] In this embodiment, the power output port of the rectifier cabinet is arranged at the front of the cabinet body 10, and the interactive module 80 is arranged on the front cabinet door to facilitate the user to perform interactive operations during charging; the heat dissipation module 90 is arranged on the rear cabinet door, which is used to dissipate heat for the rectifier cabinet in this embodiment. The heat dissipation module 90 includes a heat dissipation fan 91 and a fan control panel 92 arranged in sequence from top to bottom.

[0047] In a specific embodiment, Figure 5 Schematic diagram of the left and right rear doors of the rectifier cabinet of the utility model embodiment, as shown in Figure 4 and Figure 5 As shown, the rear cabinet door is divided into three cabinet doors: left, middle and right. Each cabinet door is provided with a heat dissipation module 90. Each heat dissipation module 90 includes a heat dissipation fan 91 and a fan control board 92 which are arranged in sequence from top to bottom.

[0048] In some embodiments, Figure 1 As shown, the cabinet 10 includes a first layer and a second layer, the matrix control board 40 and the rectifier module 20 are arranged on the first layer of the cabinet 10 ; the output distribution module 30 is arranged on the second layer of the cabinet 10 .

[0049] In this embodiment, the cabinet 10 includes two layers, the rectifier modules 20 are centrally arranged on the upper layer of the cabinet 10 for easy installation and maintenance; the matrix control board 40 is arranged on the first layer, and the output distribution module 30 is arranged on the second layer of the cabinet 10.

[0050] The above is only an implementation method of the embodiment of the utility model. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the utility model, but these all belong to the protection scope of the utility model.

Claims

1. A rectifier cabinet, characterized in that: It includes a cabinet, and a matrix control board, an output distribution module, and a plurality of rectifier modules arranged inside the cabinet; The output distribution module includes a plurality of first copper bars and a plurality of DC contactors; the first end of each of the first copper bars is connected to at least one of the rectifier modules, and the second end of each of the first copper bars is connected to a power output port; one of the DC contactors is electrically connected between every two of the first copper bars; The matrix control board is connected to the control end of the DC contactor, and the matrix control board is used to control the opening and closing of the DC contactor.

2. The rectifier cabinet according to claim 1, characterized in that: The output distribution module further includes a plurality of second copper bars, and the first copper bars are connected to the DC contactor through the second copper bars.

3. The rectifier cabinet according to claim 1, characterized in that: The rectifier cabinet includes 26 rectifier modules, each of which has an output power of 40 kW, and the output distribution module includes 24 of the first copper bars.

4. The rectifier cabinet according to claim 1, characterized in that: The first copper busbar includes a super-charged copper busbar and a general-charged copper busbar, and the number of the super-charged copper busbars connected to the rectifier modules is greater than the number of the general-charged copper busbars connected to the rectifier modules.

5. The rectifier cabinet according to claim 4, characterized in that: The super-charged copper bar is connected to a first fuse, and the normal-charged copper bar is connected to a second fuse. The rated current of the first fuse is greater than the rated current of the second fuse.

6. The rectifier cabinet according to claim 1, characterized in that: The cabinet is also provided with a power module, which includes an incoming molded case circuit breaker, a current transformer, an AC contactor and an AC meter which are arranged in sequence from bottom to top.

7. The rectifier cabinet according to claim 1, characterized in that: The cabinet is also provided with a safety protection module, which includes a cabinet circuit breaker, a lightning arrester and a lightning protection switch.

8. The rectifier cabinet according to claim 1, characterized in that: The rectifier cabinet also includes a cabinet door, on which an interactive module is provided. The interactive module includes a billing unit, a touch screen, an LED indicator light arranged on the left side of the touch screen, and a card reader arranged on the right side of the touch screen, which are arranged in sequence from top to bottom.

9. The rectifier cabinet according to claim 8, characterized in that: The cabinet door comprises a front cabinet door and a rear cabinet door, the interactive module is arranged on the front cabinet door, and the rear cabinet door is also provided with a heat dissipation module, and the heat dissipation module comprises a heat dissipation fan and a fan control panel which are arranged in sequence from top to bottom.

10. The rectifier cabinet according to claim 1, characterized in that: The cabinet includes a first layer and a second layer. The matrix control board and the rectifier module are arranged on the first layer of the cabinet; and the output distribution module is arranged on the second layer of the cabinet.

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