Alternating current and direct current integrated module

Abstract

The utility model discloses an AC / DC integrated module, and relates to the technical field of energy storage cabinets. The device comprises a plugging box body, wherein an alternating current module and a direct current module are arranged in the plugging box body; the side wall of the plugging box body is provided with a DC positive and negative electrode connector and a plurality of wiring ports, and the AC module and the DC module are connected with an energy storage converter PCS of the energy storage cabinet through the wiring ports. The inner wall of the plugging box body is fixedly connected with two [-shaped mounting plates, and the AC module and the DC module are respectively installed on the two [-shaped mounting plates, so that internal wires can pass through the [-shaped mounting plates and the inner wall of the plugging box body. According to the utility model, the AC module and the DC module are integrated in the plugging box body through the [-shaped mounting plate, so that internal wiring can conveniently pass through the [-shaped mounting plate and the inner wall of the plugging box body, thereby effectively reducing the occupied space of the energy storage cabinet, facilitating the simplification of wiring of the AC module and the DC module, and facilitating the subsequent maintenance of fault points.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of energy storage cabinet, especially relates to an AC-DC integrated module. BACKGROUND

[0002] With the market layout of energy storage, energy storage systems are used in various use scenarios. At present, most technologies adopt the separated design of energy storage battery cabinet, converter and step-up transformer. The energy storage battery cabinet is composed of battery cell, plug-in box, battery management system, heat exchange system, busbar cabinet and fire extinguishing system.

[0003] For example, the utility model CN220155989U discloses an integrated energy storage cabinet, which comprises a base, a cabinet body arranged above the base, the cabinet body is provided with two layers, the cabinet body comprises cabinet doors on both sides, four cabinet doors are arranged on one side, a plurality of energy storage batteries are arranged in the cabinet body, and a direct-current controller and an alternating-current controller are also arranged in the cabinet body. Through the arrangement of the multi-layer cabinet body, the direct-current controller and the alternating-current controller can be arranged simultaneously, and a plurality of independent cabinet doors are arranged, so that the energy storage cabinet can be conveniently opened and the local part of the energy storage cabinet can be maintained.

[0004] However, the AC-DC module of the existing energy storage cabinet adopts a split structure, which results in a large space occupation ratio of the energy storage cabinet. In addition, the wiring of the split AC-DC module is complex, which makes it inconvenient to maintain the fault point when a fault occurs subsequently. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an AC-DC integrated module, which integrates the alternating-current module and the direct-current module in the plug-in box body and installs and fixes the alternating-current module and the direct-current module through the L-shaped mounting plate, thereby solving the problem of large space occupation ratio and complex wiring of the existing AC-DC module, which makes maintenance inconvenient.

[0006] To solve the above technical problems, the utility model is implemented by the following technical scheme:

[0007] The utility model discloses an AC-DC integrated module, which comprises a plug-in box body, an alternating-current module and a direct-current module are arranged in the plug-in box body, a direct-current positive and negative connector and a plurality of wiring ports are arranged on the side wall of the plug-in box body, the alternating-current module and the direct-current module are connected with an energy storage converter PCS of an energy storage cabinet through the wiring ports, two L-shaped mounting plates are fixedly connected to the inner wall of the plug-in box body, and the alternating-current module and the direct-current module are installed on the two L-shaped mounting plates, so that the internal wiring can pass through the L-shaped mounting plate and the inner wall of the plug-in box body.

[0008] As a preferred technical scheme of the utility model, N rows of ground rows are fixedly connected in the plug-in box body.

[0009] As a preferred technical scheme of the utility model, the plug-in box is internally provided with an alternating current lightning protection device and a direct current lightning protection device.

[0010] As a preferred technical scheme of the utility model, the side wall of one end of the plug-in box is connected with a secondary plug-in part.

[0011] As a preferred technical scheme of the utility model, the plug-in box is internally further provided with a plurality of miniature circuit breakers, the input end of the miniature circuit breaker is connected with the alternating current module, and the miniature circuit breaker is used for taking 220V single-phase power from the alternating current module and outputting power supply through the output end of the miniature circuit breaker.

[0012] As a preferred technical scheme of the utility model, the plug-in box is internally further provided with a plurality of miniature circuit breakers, the input end of the miniature circuit breaker is connected with the alternating current module, and the miniature circuit breaker is used for taking 220V single-phase power from the alternating current module and outputting power supply through the output end of the miniature circuit breaker.

[0013] As a preferred technical scheme of the utility model, the mounting plate is connected with a right-angle flange provided along the edge of the passing groove, and the right-angle flange is provided with a plurality of through holes.

[0014] As a preferred technical scheme of the utility model, the plug-in box is externally connected with a plurality of handles.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses two U-shaped mounting plates are fixedly connected to the inner wall of the plug-in box, the alternating current module and the direct current module are installed on the two U-shaped mounting plates respectively, the alternating current module and the direct current module are integrated in the plug-in box, and the internal wiring is passed between the U-shaped mounting plate and the inner wall of the plug-in box, so that the occupied space of the energy storage cabinet is effectively reduced, the wiring of the alternating current module and the direct current module is simplified, and subsequent fault point maintenance is facilitated.

[0017] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0019] Figure 1 It is a structure schematic view of the alternating current and direct current integrated module of the utility model;

[0020] Figure 2 It is Figure 1Structure diagram of rear view angle;

[0021] Figure 3 Structure diagram of inside of AC-DC integrated module;

[0022] Figure 4 Structure diagram of inside of AC-DC integrated module; Figure 3 Structure diagram of inside of AC-DC integrated module;

[0023] Figure 5 Structure diagram of inside of AC-DC integrated module; Figure 4 Structure diagram of inside of AC-DC integrated module;

[0024] Figure 6 Structure diagram of inside of AC-DC integrated module;

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] 1 - plug-in box, 2 - AC module, 3 - DC module, 4 - miniature circuit breaker, 5 - mounting plate, 101 - DC positive and negative connector, 102 - U-shaped mounting plate, 103 - N row, 104 - ground row, 105 - AC lightning protector, 106 - DC lightning protector, 107 - secondary plug-in part, 108 - handle, 109 - heat dissipation hole plate, 501 - through slot, 502 - right-angle flange, 503 - through hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] Please refer to Figure 1 , 3As shown in FIGS. 4, the utility model is a kind of AC-DC integrated module, including plug-in box 1, plug-in box 1 can be installed in energy storage cabinet by the way of plug-in. Plug-in box 1 is equipped with AC module 2 and DC module 3, meanwhile, plug-in box 1 is fixedly connected with N row 103 and ground row 104 inside, AC lightning protection device 105 and DC lightning protection device 106, and the side wall of one end of plug-in box 1 is connected with secondary plug-in part 107, which is convenient to connect with the corresponding socket in cabinet when plug-in box 1 is inserted into energy storage cabinet.

[0030] As shown in FIGS. 4, the utility model is a kind of AC-DC integrated module, including plug-in box 1, plug-in box 1 can be installed in energy storage cabinet by the way of plug-in. Plug-in box 1 is equipped with AC module 2 and DC module 3, meanwhile, plug-in box 1 is fixedly connected with N row 103 and ground row 104 inside, AC lightning protection device 105 and DC lightning protection device 106, and the side wall of one end of plug-in box 1 is connected with secondary plug-in part 107, which is convenient to connect with the corresponding socket in cabinet when plug-in box 1 is inserted into energy storage cabinet. Figure 1 And 2 As shown in FIGS. 4, the utility model is a kind of AC-DC integrated module, including plug-in box 1, plug-in box 1 can be installed in energy storage cabinet by the way of plug-in. Plug-in box 1 is equipped with AC module 2 and DC module 3, meanwhile, plug-in box 1 is fixedly connected with N row 103 and ground row 104 inside, AC lightning protection device 105 and DC lightning protection device 106, and the side wall of one end of plug-in box 1 is connected with secondary plug-in part 107, which is convenient to connect with the corresponding socket in cabinet when plug-in box 1 is inserted into energy storage cabinet.

[0031] As shown in FIGS. 4, the utility model is a kind of AC-DC integrated module, including plug-in box 1, plug-in box 1 can be installed in energy storage cabinet by the way of plug-in. Plug-in box 1 is equipped with AC module 2 and DC module 3, meanwhile, plug-in box 1 is fixedly connected with N row 103 and ground row 104 inside, AC lightning protection device 105 and DC lightning protection device 106, and the side wall of one end of plug-in box 1 is connected with secondary plug-in part 107, which is convenient to connect with the corresponding socket in cabinet when plug-in box 1 is inserted into energy storage cabinet. Figure 5 As shown in FIGS. 4, the utility model is a kind of AC-DC integrated module, including plug-in box 1, plug-in box 1 can be installed in energy storage cabinet by the way of plug-in. Plug-in box 1 is equipped with AC module 2 and DC module 3, meanwhile, plug-in box 1 is fixedly connected with N row 103 and ground row 104 inside, AC lightning protection device 105 and DC lightning protection device 106, and the side wall of one end of plug-in box 1 is connected with secondary plug-in part 107, which is convenient to connect with the corresponding socket in cabinet when plug-in box 1 is inserted into energy storage cabinet.

[0032] AC module 2 and DC module 3 are installed by the way of upper and lower structure layering through the installation design of the two Chinese characters, to avoid AC-DC interference;Each component is designed in modularization, and installation, maintenance and wiring are convenient, thereby effectively reducing the occupied space of energy storage cabinet.

[0033] In use process, battery management system master control module BCU controls the main loop contactor of DC module 3 to attract, and energy storage energy management system EMS controls the main loop contactor of AC module 2 to attract, and sends charging instruction and charging power to energy storage converter PCS.

[0034] Mains 380VAC enters energy storage converter PCS to carry out AC-DC conversion through AC module 2 main loop circuit breaker and contactor, and DC module 3 main loop and DC positive and negative pole connector 101 are used to realize charging.

[0035] When the energy storage cabinet discharges: the battery management system main control module (BCU) controls the contactor of the DC module 3 main circuit to engage, and the energy storage management system (EMS) controls the contactor of the AC module 2 main circuit to engage, and sends a discharge command and discharge power to the energy storage converter (PCS). The DC power from the battery cluster passes through the DC positive and negative connectors 101 and the DC module 3 main circuit, and enters the energy storage converter (PCS) for AC-DC conversion. The AC power output from the PCS passes through the AC module 2 main circuit circuit breaker and contactor to reach the mains power terminal, thereby realizing the discharge.

[0036] like Figures 4-6 As shown, in addition, the plug-in box 1 is also equipped with several miniature circuit breakers 4. The input terminal of the miniature circuit breaker 4 is connected to the AC module 2, which is used to draw 220V single-phase power from the AC module 2 and output the power through the output terminal of the miniature circuit breaker 4.

[0037] Specifically, the inner wall of the plug-in housing 1 is connected to a mounting plate 5 by screws, and several miniature circuit breakers 4 are installed in rows on the side of the mounting plate 5; the mounting plate 5 has several through slots 501. The mounting plate 5 is connected to a right-angle flange 502 along the edge of the through slots 501, and the right-angle flange 502 has several through holes 503. When the wires connecting the miniature circuit breakers 4 are being managed, cable ties can pass through the through holes 503 to bind the wire harness, thereby ensuring the fixing effect of the wire harness and improving the overall practicality.

[0038] The miniature circuit breaker 4 draws 220V single-phase power from the main circuit of AC module 2 through its input terminal and outputs it to relevant auxiliary modules through its output terminal to assist the operation of the energy storage cabinet system. This includes powering the energy storage cabinet's thermal management system (air conditioner, liquid chiller, cooling fan), the lighting system (explosion-proof lights), the fire extinguishing device, and the DC control unit and DC working elements (such as powering the energy storage cabinet's EMS, BMS, dehumidifier, water immersion sensor, signal lights, and other DC components by outputting DC12V and DC24V through AC-DC (switching power supply)).

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. An AC-DC integrated module, characterized by: Including the plug-in box (1), the plug-in box (1) is provided with AC module (2) and DC module (3) inside; The side wall of the plug-in box (1) is provided with DC positive and negative connectors (101) and a plurality of wiring ports, and the AC module (2) and the DC module (3) are connected with the energy storage converter PCS of the energy storage cabinet through the wiring ports; Wherein, the two L-shaped mounting plates (102) are fixedly connected to the inner wall of the plug-in box (1), and the AC module (2) and the DC module (3) are respectively installed on the two L-shaped mounting plates (102), so as to facilitate the internal wiring to pass through between the L-shaped mounting plate (102) and the inner wall of the plug-in box (1).

2. The AC / DC integrated module of claim 1, wherein, The plug-in box (1) is fixedly connected with N rows (103) and ground rows (104) inside.

3. The AC / DC integrated module of claim 1 or 2, wherein, The plug-in box (1) is provided with AC lightning protection device (105) and DC lightning protection device (106) inside.

4. The AC / DC integrated module of claim 1, wherein, The side wall of one end of the plug-in box (1) is connected with a secondary plug-in part (107).

5. The AC / DC integrated module of claim 1, wherein, The plug-in box (1) is also provided with a plurality of miniature circuit breakers (4) inside, the input end of the miniature circuit breaker (4) is connected with the AC module (2), and the miniature circuit breaker (4) is used to take 220V single-phase power from the AC module (2) and output power through the output end of the miniature circuit breaker (4).

6. The AC / DC integrated module of claim 5, wherein, The mounting plate (5) is fixedly connected to the inner wall of the plug-in box (1), and the plurality of miniature circuit breakers (4) are installed on the side surface of the mounting plate (5); the mounting plate (5) is provided with a plurality of passing grooves (501).

7. The AC / DC integrated module of claim 6, wherein, The mounting plate (5) is connected with a right-angle flange (502) arranged along the edge of the passing groove (501), and the right-angle flange (502) is provided with a plurality of through holes (503).

8. The AC / DC integrated module of claim 1, wherein, The outer wall of the plug-in box (1) is connected with a plurality of handles (108).

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