Industrial and commercial energy storage AC / DC subrack assembly

Abstract

The application discloses an industrial and commercial energy storage AC / DC plug-in box assembly comprising an AC system and a DC system, the AC system is provided with a first circuit and a first interface group and a second interface group connected with the first circuit, and the DC system is provided with a second circuit and a third interface group and a fourth interface group connected with the second circuit. The alternating current system and the direct current system are located in the same box shell, or the alternating current system and the direct current system are arranged in two box shells respectively, the two box shells are connected, or the distance between the two box shells is smaller than a set value. The industrial and commercial energy storage AC / DC subrack assembly is designed in an integrated manner, the space is reduced, the installation and debugging period is shortened, meanwhile, the material cost is reduced, the space of an industrial and commercial cabinet is optimally utilized to the maximum extent, and a guarantee is provided for the equipment landing space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of industrial and commercial energy storage, and particularly relates to an industrial and commercial energy storage AC-DC plug-in box assembly. BACKGROUND

[0002] Industrial and commercial energy storage now develops into a "red sea" mode, which puts forward higher requirements for the space size, cost and convenience of equipment. The AC system and the DC system of many industrial and commercial energy storage systems on the market are separately and independently arranged, and are respectively formed into two independent large plug-in boxes, and the distance between the two plug-in boxes is far, which seriously wastes space and material cost, and is not conducive to later operation and maintenance. UTILITARY MODEL

[0003] To solve the above technical problems, the utility model provides an industrial and commercial energy storage AC-DC plug-in box assembly.

[0004] The utility model adopts the following technical scheme:

[0005] An industrial and commercial energy storage AC-DC plug-in box assembly comprises:

[0006] An AC system has a first circuit, a first interface group and a second interface group connected to the first circuit, the first interface group is used for connecting a power grid, and the second interface group is used for connecting a PCS device;

[0007] A DC system has a second circuit, a third interface group and a fourth interface group connected to the second circuit, the third interface group is used for connecting the PCS device, and the fourth interface group is used for connecting an energy storage battery box;

[0008] The AC system and the DC system are located in the same box shell.

[0009] Alternatively, the AC system and the DC system are arranged in two box shells respectively, the two box shells are connected, or the distance between the two box shells is less than a set value.

[0010] Optionally, the industrial and commercial energy storage AC-DC plug-in box assembly comprises:

[0011] A first box shell, the AC system is arranged in the first box shell;

[0012] A second box shell, the DC system is arranged in the second box shell;

[0013] The first box shell and the second box shell are fixed on a support, the first box shell and the second box shell are sequentially arranged along the longitudinal direction, and the distance between the first box shell and the second box shell is less than a set value.

[0014] Optionally, the first cabinet has a first connecting lug extending towards the second cabinet, and the second cabinet has a second connecting lug extending towards the first cabinet.

[0015] The first connecting lug and the second connecting lug are misaligned, and the first connecting lug and the second connecting lug are connected to a support respectively.

[0016] Optionally, the first connecting lug comprises two lugs, and the two lugs are spaced apart to form a gap therebetween.

[0017] The second connecting lug extends to the gap.

[0018] The lug and the second connecting lug each have a connecting hole, and a fastener is connected to the support through the corresponding connecting hole.

[0019] Optionally, the first connecting lug and the second connecting lug are located in the same plane.

[0020] Optionally, the first cabinet and the second cabinet each have a front panel, a rear panel, and a side panel connecting the front panel and the rear panel.

[0021] The first connecting lug is attached to the front panel of the first cabinet, and the second connecting lug is attached to the front panel of the second cabinet.

[0022] Optionally, the first connecting lug comprises a first connecting plate and two lugs connected to the first connecting plate, the first connecting plate is attached to the front panel of the first cabinet and is fixed to the front panel of the first cabinet by a fastener.

[0023] The second connecting lug comprises a second connecting plate and an extension lug connected to the second connecting plate, the second connecting plate is attached to the front panel of the second cabinet and is fixed to the front panel of the second cabinet by a fastener, and the extension lug extends out of the front panel of the second cabinet and extends to between the two lugs.

[0024] Optionally, the first interface group, the second interface group, the third interface group, and the fourth interface group are quick plug interface groups.

[0025] Optionally, the industrial and commercial energy storage AC / DC plug-in box assembly comprises a plurality of temperature sensors, each of the temperature sensors is arranged on the first cabinet and the second cabinet, and each of the temperature sensors is arranged close to the first interface group, the second interface group, the third interface group, and the fourth interface group.

[0026] Optionally, an AC circuit breaker is arranged on the first cabinet, and the AC circuit breaker cooperates with the first circuit to cut off or conduct the first circuit.

[0027] The second box shell is provided with a direct current circuit breaker matched with the second circuit for cutting off or conducting the second circuit.

[0028] By adopting the technical scheme, the application has the following beneficial effects:

[0029] The commercial and industrial energy storage AC / DC plug-in box assembly is integrated and designed, the space is reduced, the installation and debugging period is shortened, the material cost is reduced, the space of the commercial and industrial cabinet is optimized, and the floor space of the equipment is ensured.

[0030] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings are part of the application and serve to provide a further understanding of the utility model, the schematic embodiments of the utility model and the description thereof serve to explain the utility model, but do not constitute improper limitation on the utility model. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0032] Figure 1 A front view of the commercial and industrial energy storage AC / DC plug-in box assembly provided by the embodiment of the application is shown;

[0033] Figure 2 For Figure 1 An enlarged view of the middle A part;

[0034] Figure 3 A rear view of the commercial and industrial energy storage AC / DC plug-in box assembly provided by the embodiment of the application is shown.

[0035] In the drawings: 1, first box shell; 11, first interface group; 12, second interface group; 13, first connecting lug; 131, lug; 14, AC circuit breaker; 2, second box shell; 21, third interface group; 22, fourth interface group; 23, second connecting lug; 24, DC circuit breaker; a, front panel; b, rear panel.

[0036] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be described clearly and completely in combination with the drawings in the embodiments of the utility model below, the following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0038] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or system indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0039] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Referring to Figures 1 to 3 As shown in the figure, the embodiment of the application provides a kind of commercial and industrial energy storage AC-DC plug-in box assembly, comprising: AC system and DC system.AC system has first circuit and the first interface group 11 and second interface group 12 connected with the first circuit, the first interface group 11 is used to connect power grid, and the second interface group 12 is used to connect PCS device, DC system has second circuit and the third interface group 21 and fourth interface group 22 connected with the second circuit, the third interface group 21 is used to connect the PCS device, and the fourth interface group 22 is used to connect energy storage battery box, the AC system and DC system are located in same box shell, or the AC system and DC system are arranged in two box shells respectively, two the box shell is connected, or the distance between two the box shell is less than set value.

[0041] It needs to be noted that the structure and principle of AC system and DC system of commercial and industrial energy storage AC-DC plug-in box are mature prior art, and the specific structure and principle of each system are not described again in the embodiment of the application.

[0042] The first interface group 11, the second interface group 12, the third interface group 21 and the fourth interface group 22 can each include two interfaces, a positive electrode interface and a negative electrode interface.

[0043] The alternating current of the power grid can be provided to the PCS device through the first circuit of the alternating current system, converted into direct current by the PCS device, and further converted into a suitable voltage by the DC-DC module on the second circuit of the direct current system to charge the energy storage battery box. When the power grid is powered off or the power is insufficient, the energy storage battery box can reversely supply power to the power grid through the direct current system and the alternating current system.

[0044] The commercial and industrial energy storage AC / DC plug-in box assembly integrated design of the present application reduces the space, shortens the installation and debugging period, reduces the material cost, optimally utilizes the space of the commercial and industrial cabinet, and provides a guarantee for the equipment floor space.

[0045] The commercial and industrial energy storage AC / DC plug-in box assembly integrated design of the present application reduces the space, shortens the installation and debugging period, reduces the material cost, optimally utilizes the space of the commercial and industrial cabinet, and provides a guarantee for the equipment floor space.

[0046] In some possible embodiments, the commercial and industrial energy storage AC / DC plug-in box assembly comprises a first box shell 1 and a second box shell 2, an alternating current system is arranged in the first box shell 1, a direct current system is arranged in the second box shell 2, the first box shell 1 and the second box shell 2 are fixed on a support, the first box shell 1 and the second box shell 2 are arranged in sequence along the longitudinal direction, and the distance between the first box shell 1 and the second box shell 2 is less than a set value. The distance between the first box shell 1 and the second box shell 2 can be understood as the distance between the edge of the first box shell 1 and the edge of the second box shell 2. The set value can be greater than or equal to 0 and less than or equal to 10 cm. The PCS device can be arranged at the top of the first box shell 1 and the second box shell 2 to facilitate connection with the second interface group 12 and the third interface group 21, respectively.

[0047] In some possible embodiments, the first box shell 1 has a first connecting lug 13 extending towards the second box shell 2, the second box shell 2 has a second connecting lug 23 extending towards the first box shell 1, the first connecting lug 13 and the second connecting lug 23 are arranged in a staggered manner, and the first connecting lug 13 and the second connecting lug 23 are connected to the support, respectively. The first box shell 1 and the second box shell 2 are relatively close, and if the positions of the first connecting lug 13 and the second connecting lug 23 are opposite, they will interfere with each other, which is not conducive to reducing the distance between the main bodies of the first box shell 1 and the second box shell 2.

[0048] In some possible embodiments, referring to Figure 2As shown, the first connecting lug 13 includes two lugs 131, which are spaced apart and form a gap therebetween, the second connecting lug 23 extends to the gap, the lugs 131 and the second connecting lug 23 coincide in height but do not contact each other. Thus, the distance between the first cabinet 1 and the second cabinet 2 is shortened. The lugs 131 and the second connecting lug 23 each have a connecting hole, and one end of the fastener is connected to the bracket through the corresponding connecting hole.

[0049] In some possible embodiments, the first connecting lug 13 and the second connecting lug 23 are located in the same plane. They do not fit in the thickness direction, which facilitates their independent connection and assembly with the bracket.

[0050] In some possible embodiments, the first cabinet 1 and the second cabinet 2 each have a front panel a, a rear panel b, and a side panel connecting the front panel a and the rear panel b, the first connecting lug 13 is attached to the front panel a of the first cabinet 1, and the second connecting lug 23 is attached to the front panel a of the second cabinet 2.

[0051] The first connecting lug 13 includes a first connecting plate and two lugs 131 connected to the first connecting plate, the first connecting plate is attached to the front panel a of the first cabinet 1 and is fixed to the front panel a of the first cabinet 1 by a fastener, the second connecting lug 23 includes a second connecting plate and an extension lug connected to the second connecting plate, the second connecting plate is attached to the front panel a of the second cabinet 2 and is fixed to the front panel a of the second cabinet 2 by a fastener, and the extension lug extends out of the front panel a of the second cabinet 2 and extends to between the two lugs 131.

[0052] The first interface group 11, the second interface group 12, the third interface group 21, and the fourth interface group 22 are quick plug interface groups.

[0053] The commercial and industrial energy storage AC / DC plug-in box assembly uses quick plug devices for the docking points of AC and DC system power sources, which can ensure that the equipment is easily disassembled and quickly removed for equipment maintenance.

[0054] In some possible embodiments, the commercial and industrial energy storage AC / DC plug-in box assembly includes a plurality of temperature sensors, each of which is arranged on the first cabinet 1 and the second cabinet 2, and each of which is arranged close to the first interface group 11, the second interface group 12, the third interface group 21, and the fourth interface group 22.

[0055] The embodiment of the application simultaneously adds temperature sensors at the fast plug interface group, can monitor the running temperature and state of the equipment interface group at any time, can quickly and effectively protect the loop virtual connection, and adds a protection function for the safe operation of the equipment. The fast plug interface group is partially located inside the box shell and partially located outside the box shell, the temperature sensor is arranged inside the box shell and close to the corresponding fast plug interface group.

[0056] The first box shell 1 is provided with an alternating current circuit breaker 14, the alternating current circuit breaker 14 is matched with the first circuit, and is used for cutting off or conducting the first circuit; the second box shell 2 is provided with a direct current circuit breaker 24, the direct current circuit breaker 24 is matched with the second circuit, and is used for cutting off or conducting the second circuit. When the temperature of the fast plug interface group is detected to be too high, the temperature sensor uploads the temperature value to the BMS, and after the alarm current is reached, the BMS sends a DO point, so that the corresponding direct current circuit breaker 24 or alternating current circuit breaker 14 is tripped to protect, so that the fault link of the equipment can be quickly cut off, and the safe and stable operation of the equipment is ensured.

[0057] The above only is the preferred embodiment of the present application, and does not limit the present application in any form, although the present application has been disclosed as above with the preferred embodiment, however, is not used to limit the present application, any skilled person in the art of the patent within the scope of the technical scheme of the present application, when can utilize the above prompted technical content makes some more change or modification of the equivalent embodiment, but whatever does not leave the content of the technical scheme of the present application, according to the technical essence of the present application, any simple modification, equivalent change and modification of the above embodiment, still belongs to the scope of the present application.

Claims

1. A commercial and industrial energy storage AC / DC converter cubicle assembly, characterized in that, The application relates to an alternating current (AC) system and a direct current (DC) system. The AC system has a first circuit, a first interface group and a second interface group connected to the first circuit, the first interface group being used for connecting a power grid, and the second interface group being used for connecting a PCS device. The DC system has a second circuit, a third interface group and a fourth interface group connected to the second circuit, the third interface group being used for connecting the PCS device, and the fourth interface group being used for connecting an energy storage battery box. The AC system and the DC system are located in the same box shell. Alternatively, the AC system and the DC system are respectively arranged in two box shells, the two box shells are connected or the distance between the two box shells is less than a set value.

2. The industrial and commercial energy storage AC / DC converter box assembly of claim 1, wherein, The application also relates to a box shell. The AC system is arranged in the first box shell. The DC system is arranged in the second box shell. The first box shell and the second box shell are fixed on a support, and the first box shell and the second box shell are sequentially arranged along a longitudinal direction, and the distance between the first box shell and the second box shell is less than a set value.

3. The industrial and commercial energy storage AC / DC converter box assembly of claim 2, wherein, The first box shell has a first connecting lug extending towards the second box shell, and the second box shell has a second connecting lug extending towards the first box shell. The first connecting lug and the second connecting lug are arranged in a staggered mode, and the first connecting lug and the second connecting lug are respectively connected to the support.

4. The industrial and commercial energy storage AC / DC converter box assembly of claim 3, wherein, The first connecting lug comprises two lug plates which are arranged in a spaced mode, and a gap is formed between the two lug plates. The second connecting lug extends to the gap. The lug plate and the second connecting lug each have a connecting hole, and a fastener is connected to the support through the corresponding connecting hole.

5. The industrial and commercial energy storage AC / DC converter box assembly of claim 4, wherein, The first connecting lug and the second connecting lug are located in the same plane.

6. The industrial and commercial energy storage AC / DC converter box assembly of claim 5, wherein, The first box shell and the second box shell each have a front panel, a rear panel and a side plate connecting the front panel and the rear panel. The first connecting lug is attached to the front panel of the first box shell, and the second connecting lug is attached to the front panel of the second box shell.

7. The industrial and commercial energy storage AC / DC converter box assembly of claim 6, wherein, The first connecting lug comprises a first connecting plate and two lug plates connected to the first connecting plate, the first connecting plate is attached to the front panel of the first box shell and is fixed to the front panel of the first box shell through a fastener. The second connecting lug comprises a second connecting plate and an extension plate connected to the second connecting plate, the second connecting plate is attached to the front panel of the second box shell and is fixed to the front panel of the second box shell through a fastener, and the extension plate extends out of the front panel of the second box shell and extends to between the two lug plates.

8. The industrial and commercial energy storage AC / DC converter box assembly of claim 2, wherein, The first interface group, the second interface group, the third interface group and the fourth interface group are quick plug interface groups.

9. The industrial and commercial energy storage AC / DC converter box assembly of claim 8, wherein, A plurality of temperature sensors are arranged on the first box shell and the second box shell, and the temperature sensors are respectively arranged close to the first interface group, the second interface group, the third interface group and the fourth interface group.

10. The industrial and commercial energy storage AC / DC converter box assembly of claim 2, wherein, An AC circuit breaker is arranged on the first box shell, and the AC circuit breaker is matched with the first circuit and is used for cutting off or conducting the first circuit. A DC circuit breaker is arranged on the second box shell, and the DC circuit breaker is matched with the second circuit and is used for cutting off or conducting the second circuit.

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