CN221652036U - A combiner cabinet for energy storage container - Google Patents

Abstract

The utility model relates to a confluence cabinet for an energy storage container, which comprises a cabinet body, wherein the interior of the cabinet body is divided into a low-voltage chamber, a switch chamber and a high-voltage chamber through a partition plate, a low-voltage chamber door, a switch chamber door and a high-voltage chamber door are respectively and independently arranged on the low-voltage chamber, the interior of the low-voltage chamber is composed of a power distribution chamber and a power supply chamber, a plurality of UPS batteries are arranged in the power supply chamber, the power supply chamber is arranged in an L shape, the power supply chamber is internally used for installing the UPS and the UPS batteries, the switch chamber and the high-voltage chamber are communicated at the rear end of the cabinet body, an upper cabinet door and a lower cabinet door are arranged on the side face of the cabinet body, the upper cabinet door is arranged on the side face of the low-voltage chamber, and the lower cabinet door is arranged on the side face of the switch chamber and the high-voltage chamber, so that the problems that the traditional energy storage container is not isolated in the high-voltage circuit, the installation and maintenance are inconvenient, the size of the confluence cabinet is large, and the electric quantity of the UPS batteries is insufficient.

Description

A combiner cabinet for energy storage container

Technical Field

The utility model relates to a combiner cabinet for an energy storage container, belonging to the technical field of energy storage equipment.

Background Art

The junction box includes a power distribution circuit and a junction circuit, of which the junction circuit is DC 1500V. At present, the junction box solutions on the market are basically integrated cabinet solutions. The UPS and UPS batteries are installed on the upper part of the cabinet, the power distribution circuit is installed in the upper middle part of the cabinet, and the junction circuit is installed in the lower part of the cabinet. The cabinet size is relatively large. In order to reduce the height of the cabinet, most manufacturers choose to reduce the number of UPS batteries and reduce the height of the grounding copper bar to the ground. There is no obvious interval between the high-voltage circuit and the low-voltage circuit in the cabinet, and there is a risk of short circuit and signal interference. The front cabinet door of the junction box is also an integrated structure. When the front cabinet door is opened, the high-voltage junction circuit is directly exposed. It is very easy for on-site commissioning and maintenance personnel to touch the high-voltage junction circuit during operation. There are no protective measures installed on the front cabinet door, which poses a safety hazard.

In order to solve the above problems, the present application proposes a combiner cabinet for an energy storage container.

Utility Model Content

The technical problem to be solved by the utility model overcomes the existing defects and provides a junction box for an energy storage container, which solves the problems of the traditional energy storage container junction box having high and low voltage circuits without isolation, safety hazards, inconvenient installation and maintenance, large size of the junction box, and insufficient UPS battery power, and can effectively solve the problems in the background technology.

In order to solve the above technical problems, the utility model provides the following technical solutions:

A junction box for an energy storage container, comprising a cabinet body, wherein the interior of the cabinet body is divided into a low-voltage chamber, a switch chamber, and a high-voltage chamber by a partition, wherein the low-voltage chamber, the switch chamber, and the high-voltage chamber are respectively independently equipped with a low-voltage chamber door, a switch chamber door, and a high-voltage chamber door, wherein the interior of the low-voltage chamber is composed of a distribution chamber and a power supply chamber, wherein the distribution circuit part of the energy storage system is integrated in the distribution chamber, and an air switch, a low-voltage surge protector, a fuse, an electric meter, an I/O module, a socket, a current transformer, and a water immersion sensor are installed, and a UPS and a plurality of UPS batteries are installed in the power supply chamber , through the UPS and multiple UPS batteries installed inside the power room, uninterrupted stable power supply can be provided when the mains power circuit is out of power. The UPS is maintained in front of the cabinet. BMS display control, power display, indicator light, conversion switch and button are installed on the door of the low-voltage room. The power room is set to be L-shaped. The inside of the power room is used to install UPS batteries. The switch room and the high-voltage room are connected at the rear end of the cabinet. The upper cabinet door and the lower cabinet door are installed on the side of the cabinet. The upper cabinet door is installed on the side of the low-voltage room, and the lower cabinet door is installed on the side of the switch room and the high-voltage room.

As a further improvement of the utility model, an isolating switch is installed inside the switch room, a copper bar is fixedly connected to the rear side of the isolating switch, and the rear side of the copper bar is fixedly connected to the inner wall of the cabinet through an insulator.

As a further improvement of the utility model, an interlocking electromagnet is installed on the high-voltage chamber door, a charged display is installed on the low-voltage chamber door, a charged sensor is installed between the copper bars, the charged sensor is connected to the charged display via a wire, and the charged display is connected to the interlocking electromagnet via a wire.

As a further improvement of the present invention, two copper bars are arranged as a group, and the bottom of each group of copper bars is designed to be Y-shaped.

As a further improvement of the utility model, fuses are installed in the electrical connection between the copper bars, and the fuses are used to provide short circuit and overcurrent protection for the high voltage circuit.

As a further improvement of the present invention, a cooling fan is installed at the rear side of the switch room to accelerate the heat dissipation.

The beneficial effects of the utility model are as follows: a junction cabinet for an energy storage container, which is divided into four independent compartments, namely, a power distribution room, a switch room, a high-voltage room, and a power supply room. The compartments are completely isolated to prevent human bodies from approaching live parts. Each compartment is equipped with a separate cabinet door. During debugging, only the corresponding cabinet door needs to be opened, which greatly reduces the risk of accidental touch. In addition, an interlocking electromagnet is arranged on the door of the high-voltage room. When the live sensor cannot detect the current, the interlocking electromagnet is energized and the cabinet door can be opened, thereby preventing staff from operating the high-voltage room with power on and eliminating safety hazards. Through the UPS and multiple UPS batteries installed inside the power supply room, an uninterrupted and stable power supply can be provided when the mains circuit is out of power, thereby solving the problems of safety hazards caused by the lack of isolation of high and low voltage circuits in traditional energy storage container junction cabinets, inconvenient installation and maintenance, large size of the junction cabinet, and insufficient power of the UPS battery.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

FIG1 is a three-dimensional structural diagram of a combiner cabinet for an energy storage container according to the present invention.

FIG. 2 is a front view of the internal structure of a combiner cabinet for an energy storage container according to the present invention.

FIG3 is a side view of the internal structure of a combiner cabinet for an energy storage container according to the present invention.

FIG. 4 is a schematic diagram of the electrical principles of a combiner cabinet for an energy storage container according to the present invention.

FIG. 5 is a schematic diagram of the control principle of the interlocking electromagnet in a combiner cabinet for an energy storage container of the utility model.

Numbers in the figure: 1. Cabinet; 2. Low-voltage room; 3. Switch room; 4. High-voltage room; 5. Low-voltage room door; 6. Switch room door; 7. High-voltage room door; 8. Upper cabinet door; 9. Lower cabinet door; 10. Interlocking electromagnet; 11. Isolating switch; 12. Partition; 13. Power supply room; 14. Fuse; 15. Insulator; 16. Live sensor; 17. Copper busbar; 18. Cooling fan; 19. Distribution room.

DETAILED DESCRIPTION

The utility model is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions, showing only schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods in the utility model, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, in the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The utility model is further explained below in conjunction with specific implementation methods.

Example

As shown in Figures 1 to 3, a junction box for energy storage containers includes a cabinet body. The interior of the cabinet body 1 is divided into a low-voltage chamber 2, a switch chamber 3 and a high-voltage chamber 4 by a partition 12. Correspondingly, a low-voltage chamber door 5, a switch chamber door 6 and a high-voltage chamber door 7 are independently installed on the low-voltage chamber 2, the switch chamber 3 and the high-voltage chamber 4. Compared with the integrated door structure in the prior art, the low-voltage part and the high-voltage part in the junction box can be effectively isolated. When the staff operates the low-voltage chamber 2 or the switch chamber 3 alone, they will not accidentally touch the live parts inside the high-voltage chamber 4, thereby improving safety. It consists of a distribution room 19 and a power supply room 13, wherein the distribution circuit part of the energy storage system is integrated in the distribution room 19, and air switches, low-voltage surge protectors, fuses, electric meters, I/O modules, sockets, current transformers, and water immersion sensors are installed. UPS and multiple UPS batteries are installed in the power supply room 13. Through the UPS and multiple UPS batteries installed in the power supply room 13, uninterrupted and stable power supply can be provided when the mains power circuit is cut off. The UPS is maintained in front of the cabinet, and the low-voltage room door 5 is equipped with a BMS display control, a power display, an indicator light, a conversion switch, and a button.

The power supply room 13 is configured to be L-shaped, and the interior of the power supply room 13 is used to install UPS and UPS batteries, wherein the switch room 3 and the high-voltage room 4 are connected at the rear end of the cabinet 1, and the upper cabinet door 8 and the lower cabinet door 9 are installed on the side of the cabinet 1, wherein the upper cabinet door 8 is installed on the side of the low-voltage room 2, and the lower cabinet door 9 is installed on the side of the switch room 3 and the high-voltage room 4. The UPS battery can be maintained by opening the upper cabinet door 8 on the side of the cabinet 1, and the copper busbar 17 and the fuse 14 inside the high-voltage room 4 and the switch room 3 can be more conveniently wired or maintained by opening the high-voltage room door 7 and the lower cabinet door 9.

In some optional embodiments, an isolating switch 11 is installed inside the switch room 3 , a copper busbar 17 is fixedly connected to the rear side of the isolating switch 11 , and the rear side of the copper busbar 17 is fixedly connected to the inner wall of the cabinet 1 through an insulator 15 .

An interlocking electromagnet 10 is installed on the high-voltage chamber door 7, a live indicator is installed on the low-voltage chamber door 5, and a live sensor 16 is installed between the copper bars 17. The live sensor 16 is connected to the live indicator through a wire, and the live indicator is connected to the interlocking electromagnet 10 through a wire. When the live sensor 16 cannot detect current, the auxiliary points K1 and K2 of the live indicator are closed, and the circuit shown in Figure 5 is connected. The interlocking electromagnet 10 is energized, and the cabinet door can be opened at this time, thereby preventing the staff from operating the high-voltage chamber 4 with power on, eliminating safety hazards, and the control principle diagram of the interlocking electromagnet 10 is shown in Figure 5.

As shown in Figure 3, in some optional embodiments, two copper bars 17 are arranged as a group, and the bottom of each group of copper bars 17 is designed to be y-shaped, wherein two incoming copper bars are a group, and two outgoing copper bars are a group, the incoming lines are led from the battery cluster, and the outgoing lines are led to the PCS energy storage inverter. One of the copper bars in each group is arranged vertically, and the other is arranged in a folded line, forming a y-shaped structure as a whole. Compared with the original vertically parallel structure, the wiring space can be effectively increased, thereby facilitating the simultaneous connection of multiple cables.

As shown in FIG. 4 , in some optional embodiments, a fuse 14 is electrically connected and installed between the copper busbars 17. The fuse 14 is used to provide short-circuit and overcurrent protection for the high-voltage circuit. The fuse 14 is used in conjunction with the isolating switch 11 to provide on-off and overload protection for the high-voltage circuit inside the high-voltage chamber 4.

In some optional embodiments, a cooling fan 18 is further installed at the rear side of the switch room 3 to increase the air flow speed inside the cabinet 1 to facilitate heat dissipation.

Through the above technical scheme, the utility model has the following beneficial effects: the junction box is divided into four independent compartments, namely, the distribution room 19, the switch room 3, the high-voltage room 4, and the power room 13. The compartments are completely isolated to prevent human bodies from approaching live parts. Each compartment is equipped with a separate cabinet door. During debugging, only the corresponding cabinet door needs to be opened, which greatly reduces the risk of accidental touch. In addition, an interlocking electromagnet 10 is provided on the high-voltage room door 7. When the live sensor 16 cannot detect the current, the interlocking electromagnet 10 is energized and the cabinet door can be opened, thereby avoiding the staff from operating the high-voltage room 4 with power on, eliminating safety hazards, and through the UPS and UPS and multiple UPS batteries installed inside the power room 13, an uninterrupted stable power supply can be provided when the mains circuit is out of power.

The above is a preferred implementation mode of the utility model. The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims (6)

1. The utility model provides an energy storage is conflux cabinet for container, includes the cabinet body (1), its characterized in that: the utility model discloses a cabinet, including cabinet body (1), switch room (3), high-pressure chamber (4), install low-pressure chamber door (5), switch room door (6), high-pressure chamber door (7) on low-pressure chamber (2), switch room (3), high-pressure chamber (4) respectively independently, low-pressure chamber (2) are inside to constitute by block terminal (19), power supply room (13) set up to the L type, power supply room (13) are inside to be used for installing UPS and UPS battery, switch room (3), high-pressure chamber (4) are in cabinet body (1) rear end UNICOM, cabinet body (1) side-mounting has cabinet door (8), lower cabinet door (9), upper cabinet door (8) are installed in low-pressure chamber (2) side, lower cabinet door (9) are installed in switch room (3), high-pressure chamber (4) side.

2. The collecting cabinet for energy storage containers according to claim 1, wherein: the switch room (3) internally mounted has isolator (11), isolator (11) rear side fixedly connected with copper bar (17), copper bar (17) rear side is through insulator (15) fixed connection on cabinet body (1) inner wall.

3. A collecting cabinet for energy storage containers according to claim 2, characterized in that: the high-voltage chamber door (7) is provided with an interlocking electromagnet (10), the low-voltage chamber door (5) is provided with an electrified display, an electrified sensor (16) is arranged between the copper bars (17), the electrified sensor (16) is connected with the electrified display through a wire, and the electrified display is connected with the interlocking electromagnet (10) through the wire.

4. A collecting cabinet for energy storage containers according to claim 2, characterized in that: two copper bars (17) are arranged in a group, and the bottom of each group of copper bars (17) is designed to be y-shaped.

5. A collecting cabinet for energy storage containers according to claim 2, characterized in that: and the fuse (14) is electrically connected between the copper bars (17), and the fuse (14) is used for achieving the effects of short circuit and overcurrent protection on the high-voltage loop.

6. The collecting cabinet for energy storage containers according to claim 1, wherein: a cooling fan (18) is also arranged at the rear side of the switch chamber (3).