CN223514469U - Distributed energy storage cabinet control box - Google Patents

Abstract

The utility model discloses a distributed energy storage cabinet control box which comprises a box body, wherein a first binding post and a third binding post are arranged on two sides of the front surface of the box body, a second binding post and a fourth binding post are arranged on two sides of the back surface of the box body, radiating holes are formed in two sides of the box body, a radiating fan and a V power module are arranged in the box body, an alternating current power distribution system, a direct current power distribution system and a control system are further arranged in the box body, the distributed energy storage cabinet control box is characterized in that the alternating current power distribution system, the direct current power distribution system and the control system are highly integrated in the box body, the reasonable installation and arrangement of components are solved, meanwhile, the distribution, metering and control requirements of the distributed energy storage system can be met, and the radiating fan of the distributed energy storage cabinet control box can play a certain role in damping when a fan main body operates through the arrangement of a connecting plate with high toughness, so that noise generated when the radiating fan operates is reduced.

Description

Distributed energy storage cabinet control box

Technical Field

The utility model relates to the technical field of energy storage control boxes, in particular to a distributed energy storage cabinet control box.

Background

The distributed energy storage system plays an irreplaceable role on the power generation side, the power transmission and distribution side and the user side, has wide application scene, is one of important means for solving the problem of renewable energy grid-connected consumption, and generally needs to consider how to reasonably install and arrange various different system components such as alternating current power distribution, direct current power distribution and control, or else the internal space of the energy storage system is wasted easily. Meanwhile, because the sizes and functions of all the components are different, the high-efficiency integration cannot be realized, and the whole energy storage system is complex in structure.

For this purpose, we design a distributed energy storage cabinet control box here.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide a distributed energy storage cabinet control box for solving the problems in the background art.

In order to achieve the purpose, the utility model provides the technical scheme that the distributed energy storage cabinet control box comprises a box body, wherein a first binding post and a third binding post are arranged on two sides of the front surface of the box body, a second binding post and a fourth binding post are arranged on two sides of the back surface of the box body, heat dissipation holes are formed in two sides of the box body, a heat dissipation fan and a 24V power module are arranged in the box body, and an alternating current power distribution system, a direct current power distribution system and a control system are further arranged in the box body;

The alternating current distribution system comprises an alternating current incoming line breaker, a current transformer, a surge protector, a miniature breaker and a meter, wherein the meter is arranged on the front side of the box body, the surge protector is arranged on the back side of the box body, the miniature breaker is arranged on the front side and the back side of the box body, the alternating current incoming line breaker and the current transformer are arranged in the box body, the alternating current incoming line breaker is connected between the first binding post and the second binding post through a wire, and the wire passes through the current transformer;

The direct current distribution system comprises a direct current breaker, an anode branch and a cathode branch, wherein the direct current breaker, the anode branch and the cathode branch are all arranged in the box body, the anode branch is connected between a third binding post and a fourth binding post through wires, the direct current breaker is connected with the anode branch in series, and the cathode branch is connected with two ends of the anode branch in parallel;

The control system comprises an EMS energy management control system and a BMS battery management system, wherein the EMS energy management control system is arranged on the back surface of the box body, and the BMS battery management system is arranged in the box body.

Preferably, the positive electrode branch comprises a fuse and a positive electrode contactor, the fuse and the positive electrode contactor are connected in series, and the two ends of the positive electrode contactor are connected with a pre-charging loop in parallel.

Preferably, the negative electrode branch comprises a shunt and a negative electrode contactor, and the shunt and the negative electrode contactor are connected in series.

Preferably, the pre-charging loop comprises a pre-charging contactor and a pre-charging resistor, and the pre-charging contactor and the pre-charging resistor are connected in series.

Preferably, the radiator fan comprises a fan main body, mounting columns, connecting plates and rubber gaskets, four mounting columns distributed in a rectangular array are arranged on the periphery of the outer shell of the fan main body, the four mounting columns are connected with the outer shell of the fan main body through two connecting plates, the bottoms of the four mounting columns are adhered with the rubber gaskets through glue, and the four mounting columns are fixed on the box body through screws.

Compared with the prior art, the utility model provides the distributed energy storage cabinet control box, which has the following beneficial effects:

This distributed energy storage cabinet control box, through exchange distribution system, direct current distribution system, control system high integration in the box together, the problem of arranging of rational installation of components and parts has been solved, distribution, measurement and the control demand of distributed energy storage system also can be realized simultaneously, and the radiator fan of this distributed energy storage cabinet control box can play certain cushioning effect when fan main part operation through setting up the connecting plate that possesses high toughness to reduce the noise that radiator fan produced when operating.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the front structure of the present utility model;

FIG. 3 is a schematic view of the back structure of the present utility model;

FIG. 4 is a schematic side view of the present utility model;

fig. 5 is a schematic diagram of a heat dissipating fan according to the present utility model.

Reference numeral 1, an alternating current incoming line breaker; 2, a direct current breaker, 3, a cooling fan, 31, a fan main body, 32, a mounting post, 33, a connecting plate, 34, a rubber gasket, 4, a current transformer, 5, a surge protector, 6, a miniature breaker, 7, an EMS energy management control system, 8, 24V power supply modules, 9, a BMS battery management system, 10, a meter, 11, a fuse, 12, a pre-charging contactor, 13, a shunt, 14, a positive electrode contactor, 15, a pre-charging resistor, 16, a negative electrode contactor, 17, a box body, 18, a first binding post, 19, a second binding post, 20, a third binding post, 21, a fourth binding post, 22 and a cooling hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, in this embodiment, a control box of a distributed energy storage cabinet includes a box 17, wherein, a first binding post 18 and a third binding post 20 are installed on two sides of the front surface of the box 17, a second binding post 19 and a fourth binding post 21 are installed on two sides of the back surface of the box 17, heat dissipation holes 22 are provided on two sides of the box 17, a heat dissipation fan 3 and a 24V power module 8 are installed inside the box 17, and the control box can be ventilated and cooled integrally by the cooperation of the heat dissipation fan 3 and the heat dissipation holes 22, and an ac power distribution system, a dc power distribution system and a control system are also provided inside the box 17;

The alternating current distribution system comprises an alternating current incoming line breaker 1, a current transformer 4, a surge protector 5, a miniature breaker 6 and a meter 10, wherein the meter 10 is arranged on the front surface of a box body 17, the surge protector 5 is arranged on the back surface of the box body 17, the surge protector 5 is used for protecting an energy storage system from surge impact caused by external lightning, the miniature breaker 6 is arranged on the front surface and the back surface of the box body 17, the miniature breaker 6 is used for controlling a power switch of secondary equipment of the energy storage system, the alternating current incoming line breaker 1 and the current transformer 4 are arranged in the box body 17, the alternating current incoming line breaker 1 is connected between a first binding post 18 and a second binding post 19 through wires, the alternating current incoming line breaker 1 is used for controlling connection and disconnection of a power grid and the system, the wires pass through the current transformer 4, and the current transformer 4 and the meter 10 are mainly used for metering charge and discharge electric quantity of the distributed energy storage system;

The direct current distribution system comprises a direct current breaker 2, a positive pole branch and a negative pole branch, wherein the direct current breaker 2, the positive pole branch and the negative pole branch are all arranged in a box body 17, the positive pole branch is connected between a third binding post 20 and a fourth binding post 21 through wires, the direct current breaker 2 is connected with the positive pole branch in series, the direct current breaker 2 is used for controlling the connection and disconnection of a battery and the system, the negative pole branch is connected in parallel with two ends of the positive pole branch, the positive pole branch comprises a fuse 11 and a positive pole contactor 14, the fuse 11 and the positive pole contactor 14 are connected in series, two ends of the positive pole contactor 14 are connected in parallel with a pre-charging loop, the negative pole branch comprises a shunt 13 and a negative pole contactor 16, the shunt 13 and the negative pole contactor 16 are connected in series, the pre-charging loop comprises a pre-charging contactor 12 and a pre-charging resistor 15, the pre-charging contactor 12 and the pre-charging resistor 15 are connected in series with each other, and a breaker accommodating hole is formed in the front of the box body 17, and an operating handle of the breaker is arranged outside the box body 17;

The control system comprises an EMS energy management control system 7 and a BMS battery management system 9, wherein the EMS energy management control system 7 is arranged on the back of the box 17, the BMS battery management system 9 is arranged in the box 17, the EMS energy management control system 7 is used for realizing omnibearing data acquisition, processing, display, control and the like of all battery clusters, battery stacks, converters PCS, electric meters and the like in energy storage, the BMS battery management system 9 can measure the voltage and temperature of a single battery in real time, measure the voltage, current and other parameters of the end of the battery pack, can display and report alarm information when the battery system is in operation in overvoltage, undervoltage, overcurrent, high temperature, low temperature, abnormal communication, abnormal BMS and other states, and can realize quick cut-off of a battery loop, ensure safe, reliable and stable operation of the battery, ensure the service life requirements of the single battery and meet the operation optimization control requirements on the single battery and the battery pack.

Referring to fig. 5, the cooling fan 3 includes a fan main body 31, mounting columns 32, a connecting plate 33 and a rubber gasket 34, four mounting columns 32 distributed in rectangular array are disposed around the housing of the fan main body 31, the four mounting columns 32 are connected with the housing of the fan main body 31 through two connecting plates 33, the connecting plates 33 are PETG plates or other high-toughness plates, the connecting plates 33 play a role in damping, so that vibration noise generated when the fan main body 31 runs is reduced, the bottoms of the four mounting columns 32 are adhered with the rubber gasket 34 by glue, and the four mounting columns 32 are fixed on the box 17 through screws.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. A distributed energy storage cabinet control box, comprising a box body (17), characterized in that: a first terminal block (18) and a third terminal block (20) are installed on both sides of the front of the box body (17), a second terminal block (19) and a fourth terminal block (21) are installed on both sides of the back of the box body (17), heat dissipation holes (22) are provided on both sides of the box body (17), a cooling fan (3) and a 24V power module (8) are installed inside the box body (17), and an AC power distribution system, a DC power distribution system and a control system are also provided inside the box body (17); The AC power distribution system includes an AC incoming circuit breaker (1), a current transformer (4), a surge protector (5), a miniature circuit breaker (6), and a meter (10). The meter (10) is installed on the front of the enclosure (17), the surge protector (5) is installed on the back of the enclosure (17), and miniature circuit breakers (6) are installed on both the front and back of the enclosure (17). The AC incoming circuit breaker (1) and the current transformer (4) are both installed inside the enclosure (17). The AC incoming circuit breaker (1) is connected between the first terminal (18) and the second terminal (19) by a wire, and the wire passes through the current transformer (4). The DC power distribution system includes a DC circuit breaker (2), a positive branch, and a negative branch. The DC circuit breaker (2), the positive branch, and the negative branch are all installed inside the enclosure (17). The positive branch is connected between the third terminal (20) and the fourth terminal (21) by a wire. The DC circuit breaker (2) is connected in series with the positive branch, and the negative branch is connected in parallel at both ends of the positive branch. The control system includes an EMS energy management control system (7) and a BMS battery management system (9). The EMS energy management control system (7) is installed on the back of the housing (17), and the BMS battery management system (9) is installed inside the housing (17). 2. A distributed energy storage cabinet control box according to claim 1, characterized in that: the positive branch includes a fuse (11) and a positive contactor (14), the fuse (11) and the positive contactor (14) are connected in series, and a pre-charge circuit is connected in parallel at both ends of the positive contactor (14). 3. A distributed energy storage cabinet control box according to claim 1, characterized in that: the negative branch includes a shunt (13) and a negative contactor (16), and the shunt (13) and the negative contactor (16) are connected in series. 4. A distributed energy storage cabinet control box according to claim 2, characterized in that: the pre-charge circuit includes a pre-charge contactor (12) and a pre-charge resistor (15), and the pre-charge contactor (12) and the pre-charge resistor (15) are connected in series. 5. A distributed energy storage cabinet control box according to claim 1, characterized in that: the cooling fan (3) includes a fan body (31), mounting posts (32), connecting plates (33) and rubber gaskets (34), four mounting posts (32) arranged in a rectangular array are provided around the outer shell of the fan body (31), the four mounting posts (32) are connected to the outer shell of the fan body (31) by two connecting plates (33), the bottom of the four mounting posts (32) is glued with rubber gaskets (34), and the four mounting posts (32) are fixed to the box body (17) by screws.