Energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage equipment, in particular to an energy storage cabinet which comprises a cabinet body, the cabinet body is provided with an accommodating space and an opening, and the opening is communicated with the accommodating space; a thermal insulation plate is arranged in the accommodating space and is used for separating the accommodating space into a first accommodating cavity and a second accommodating cavity; a plurality of battery boxes are arranged in the first accommodating cavity; and a PCS cabin, a control cabin and an equipment cabin are arranged in the second accommodating cavity. According to the utility model, a plurality of battery boxes are arranged in a first accommodating cavity, and a PCS cabin, a control cabin and an equipment cabin are arranged in a second accommodating cavity; the battery system, the PCS, the control system and the like are integrated in the energy storage cabinet, the overall structure is compact, and the occupied area is small.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, in particular to an energy storage cabinet. Background Art

[0002] Energy storage cabinet is a basic unit of energy storage equipment, mainly used to store electric energy. It can be used as a support for independent power grids to improve the efficiency of power grid operation by adjusting the load of the power grid during peak and valley periods. In addition, energy storage cabinets can also be combined with renewable energy to smooth the power generation side of new energy and improve energy utilization efficiency.

[0003] The existing energy storage cabinet system divides the battery side and the electrical side into two cabinets, which is troublesome to install and use, and the control coordination is cumbersome, which is not conducive to the operation of the system. In addition, the battery box is fixed to the battery side by screws, which is very troublesome to disassemble. When the battery compartment fails during the firefighting mission, the operator needs to use tools to disassemble it, which increases the workload of the operator. Based on this, a new energy storage cabinet is needed. Utility Model Content

[0004] In view of the above technical problems, the utility model provides an energy storage cabinet.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] An energy storage cabinet comprises a cabinet body, wherein the cabinet body is provided with a receiving space and an opening, wherein the opening is communicated with the receiving space; an insulation board is arranged in the receiving space, and the insulation board is used to isolate the receiving space into a first receiving cavity and a second receiving cavity; a plurality of battery boxes are arranged in the first receiving cavity; and a PCS (Power Conversion System, energy storage converter) cabin, a control cabin and an equipment cabin are arranged in the second receiving cavity.

[0007] Furthermore, the cabinet body includes a first cabinet side panel and a second cabinet side panel fixed on the left and right sides, a cabinet top panel on the top, a cabinet bottom panel and a cabinet door on the bottom; the insulation board is fixedly connected to the cabinet top panel and the cabinet bottom panel respectively; and also includes a cabinet door, which is hinged on the cabinet body.

[0008] Furthermore, the cabinet doors include a first cabinet door, a second cabinet door, a third cabinet door and a fourth cabinet door; the side of the first cabinet door is hinged to the first cabinet side panel, and the side of the second cabinet door is hinged to the second cabinet side panel; the side of the third cabinet door is hinged to the first cabinet side panel, and the side of the fourth cabinet door is hinged to the second cabinet side panel.

[0009] Furthermore, the cabinet body also includes a cabinet frame, the cabinet frame includes an upper frame, columns and a lower frame, the columns are vertically fixed between the upper frame and the lower frame, and the upper frame, the columns and the lower frame form a receiving space; the insulation board is used to isolate the receiving space into a first receiving cavity and a second receiving cavity; the first receiving cavity also includes a plurality of groups of beams distributed from bottom to top on the columns and used to place battery boxes, and load-bearing beams arranged on the columns along the direction in which the battery boxes are pushed in, the columns, insulation boards, beams and load-bearing beams form at least one battery placement area, the battery box is placed on the upper surface of the load-bearing beam, and the height of the battery placement area is greater than the height of the battery box.

[0010] Furthermore, it also includes a second louver, which is installed on the fourth cabinet door and is specifically located in front of the equipment compartment.

[0011] Furthermore, a refrigeration air conditioner is installed on the third cabinet door.

[0012] Furthermore, the control cabin includes an EMS (Energy Management System) main control box, and the EMS main control box is electrically connected to the battery box.

[0013] Furthermore, a high-voltage box and a fire-fighting mechanism are arranged at the front and rear of the equipment compartment, and the fire-fighting mechanism includes a fire bottle for extinguishing a fire in the battery box; the high-voltage box is electrically connected to the battery box.

[0014] Furthermore, an energy storage inverter is provided in the PCS, and the energy storage inverter is electrically connected to the battery box.

[0015] Furthermore, a temperature and humidity sensor, a smoke sensor and a water immersion sensor are also provided in the first receiving cavity; the temperature and humidity sensor, the smoke sensor and the water immersion sensor are electrically connected to the EMS main control box respectively.

[0016] In summary, compared with the prior art, the utility model has the following technical effects:

[0017] (1) In the utility model, a plurality of battery boxes are arranged in the first receiving chamber, and a PCS compartment, a control compartment and an equipment compartment are arranged in the second receiving chamber; the battery system, PCS, control system, etc. are integrated in the energy storage cabinet, and the overall structure is compact and occupies a small area.

[0018] (2) In the present invention, the storage space in the energy storage cabinet is separated into a first storage chamber and a second storage chamber by a thermal insulation plate, that is, the battery box is separated from the control cabin, which effectively avoids the interference of a large amount of heat generated by the battery box during the charging and discharging process on the electronic control system, thereby ensuring the safety and reliability of the battery box.

[0019] (3) In the present invention, the energy storage cabinet adopts a left and right opening and closing design, and a front and rear door opening design, which greatly improves the space utilization rate of the energy storage cabinet and the convenience of loading, unloading and maintenance.

[0020] (4) In the utility model, a refrigeration air conditioner is equipped to cool and dissipate heat for the battery box, which can effectively dissipate the heat generated by charging and discharging the batteries in the battery box, reduce the temperature inside the box, avoid thermal runaway, and ensure the safety and reliability of the battery. It is suitable for on-site office electricity use in various public places.

[0021] (5) In the present invention, a fire-fighting mechanism is provided in the energy storage cabinet, which can timely extinguish the fire and give an alarm when a fire occurs in the energy storage cabinet, effectively control the fire, and improve the safety and functional integration of the energy storage cabinet. The louver is used to achieve separate heat dissipation of the equipment compartment, further improving the safety of the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the energy storage cabinet of the utility model;

[0023] Figure 2 This is a rear view of the energy storage cabinet of the utility model;

[0024] Figure 3 This is a front view of the cabinet body of the utility model;

[0025] Figure 4 This is a rear side view of the cabinet body of the utility model;

[0026] Figure 5 It is a schematic front view of the interior of the first receiving cavity and the second receiving cavity of the utility model;

[0027] Figure 6 It is a schematic rear view of the interior of the first receiving cavity and the second receiving cavity of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the battery box of the utility model.

[0029] In the accompanying drawings, the component names represented by the reference numerals are listed as follows:

[0030] 100. Cabinet body; 110. Insulation board; 111. Upper frame; 112. Column; 113. Lower frame; 121. First cabinet door; 122. Second cabinet door; 123. Third cabinet door; 124. Fourth cabinet door; 1221. First louver; 1241. Second louver; 200. First receiving cavity; 221. Crossbeam; 222. Load-bearing beam; 300. Second receiving cavity; 310. PCS cabin; 320. Control cabin; 330. Equipment cabin. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] Reference Figure 1 - Figure 7 This embodiment discloses an energy storage cabinet, including a cabinet body 100, provided with a receiving space and an opening, the opening being connected to the receiving space; a thermal insulation board 110 is arranged in the receiving space, and the thermal insulation board 110 is used to isolate the receiving space into a first receiving cavity 200 and a second receiving cavity 300; a plurality of battery boxes 210 are arranged in the first receiving cavity 200; a PCS cabin 310, a control cabin 320 and an equipment cabin 330 are arranged in the second receiving cavity 300 from top to bottom. A thermal insulation board 110 is arranged between the first receiving cavity 200 and the second receiving cavity 300, and the first receiving cavity 200 and the second receiving cavity 300 are isolated by the thermal insulation board 110. When a safety accident occurs in the energy storage cabinet, the accident is prevented from spreading between the first receiving cavity 200 and the second receiving cavity 300. In addition, a heat insulation cotton is arranged on the thermal insulation board 110 to prevent the temperature deviation of the first receiving cavity 200 and the second receiving cavity 300 from being too large, thereby improving the safety of the energy storage cabinet. At the same time, the energy storage cabinet adopts a left and right opening and closing design, which is convenient for loading and unloading and unpacking maintenance of various equipment in the energy storage cabinet, reduces safety accidents caused by high and low voltage, and effectively protects the safety of operators.

[0033] In this embodiment, refer to Figure 1 - Figure 2 The cabinet body 100 is a cube or a rectangular parallelepiped, and the cabinet body 100 also includes a first cabinet side panel, a second cabinet side panel, a cabinet top panel, a cabinet bottom panel and a cabinet door fixed on the left and right sides, and the cabinet door is movably connected to the cabinet body 100 to open or close the opening. Specifically, the cabinet door includes a first cabinet door 121, a second cabinet door 122, a third cabinet door 123 and a fourth cabinet door 124; the side of the first cabinet door 121 is hinged to the first cabinet side panel, and the side of the second cabinet door 122 is hinged to the second cabinet side panel; the side of the third cabinet door 123 is hinged to the first cabinet side panel, and the side of the fourth cabinet door 124 is hinged to the second cabinet side panel. The first cabinet door 121 corresponds to the third cabinet door 123, and the first receiving cavity 200 is opened; the second cabinet door 122 corresponds to the fourth cabinet door 124, and the second receiving cavity 300 is opened. The left and right opening and closing design, as well as the front and rear door opening design, facilitate the loading and unloading and unpacking maintenance of various equipment in the energy storage cabinet.

[0034] In a specific embodiment, refer to Figure 1, and also includes a first louver 1221, which is installed on the second cabinet door 122 and is specifically located in front of the PCS cabin 310. The PCS cabin 310 is equipped with an energy storage inverter. Since the energy storage inverter generates a lot of heat during operation, high temperature has a certain impact on the operation of electrical equipment. The PCS energy storage inverter has its own fan, and an axial flow fan and louvers are installed on the door panel to achieve better ventilation and heat dissipation effects.

[0035] In a specific embodiment, refer to Figure 2 , further comprising a second louver 1241, the louver being mounted on the fourth cabinet door 124 and specifically located in front of the equipment compartment 330. The louver is used to supplement fresh air with natural wind to form a natural gas duct. In a specific embodiment, refer to Figure 2 An air conditioner is installed on the third cabinet door 123 through a mounting frame. When the battery box 210 is started, it is used to heat the battery box 210. When the battery box 210 operates normally, a large amount of heat will be generated, and the air conditioner cools the battery box 210.

[0036] In this embodiment, refer to Figure 3 - Figure 4 The cabinet body 100 also includes a cabinet frame, which includes an upper frame 111, columns 112 and a lower frame 113. The columns 112 are vertically fixed between the upper frame 111 and the lower frame 113. The upper frame 111, the columns 112 and the lower frame 113 form a receiving space; the insulation board 110 is used to isolate the receiving space into a first receiving cavity 200 and a second receiving cavity 300, wherein the number of the columns 112 is multiple.

[0037] In a specific embodiment, refer to Figure 5 - Figure 6 The first receiving cavity 200 also includes a plurality of beams 221 distributed from bottom to top on the column 112 for placing the battery box 210, and a plurality of the beams 221 may be provided; the first receiving cavity 200 also includes a load-bearing beam 222 provided on the column 112 along the direction in which the battery box 210 is pushed in, and the column 112, the insulation board 110, the beam 221 and the load-bearing beam 222 form at least one battery placement area, and the battery box 210 is placed on the upper surface of the load-bearing beam 222, and the height of the battery placement area is greater than the height of the battery box 210.

[0038] In a specific embodiment, refer to Figure 5 - Figure 6In the second receiving chamber 300, the second receiving chamber 300 is divided into a PCS cabin 310, a control cabin 320 and an equipment cabin 330 by a load-bearing bracket. An energy storage converter is provided in the PCS cabin 310, and the battery box 210 completes the AC-DC conversion through the energy storage converter, and connects the electricity in the battery box 210 to an external power supply.

[0039] The control cabin 320 includes an EMS (Energy Management System) main control box. The EMS main control box is implemented using existing technology and includes an energy management system.

[0040] Firefighting mechanisms and high-voltage boxes are arranged at the front and back of the equipment compartment 330. The firefighting mechanism includes a firefighting bottle, and the firefighting control box is connected to the EMS main control box. Preferably, the firefighting bottle is a HFC-227ea firefighting tank. The energy storage cabinet is equipped with a firefighting mechanism to improve the safety of the energy storage cabinet. When thermal runaway occurs inside, the temperature and humidity sensors and smoke sensors can transmit information to the energy management system of the EMS main control box in a timely manner, and make corresponding logical judgments to carry out firefighting and alarm, etc., to effectively control the fire. The high-voltage box is connected to the battery box 210, and the battery box 210 is protected by the high-voltage box. The safety of the battery box is protected by the high-voltage box to avoid damage to the battery box due to excessive current input at the battery box 210 end, thereby improving the service life of the energy storage cabinet.

[0041] In this embodiment, refer to Figure 7 The battery box 210 adopts an air-cooled battery box. The battery box 210 includes a plurality of battery modules 211, a module housing 212 and a BMS (Battery Management System) main control box 213. The module housing 212 is configured to accommodate the plurality of battery modules 211. The battery module 211 includes a single battery connected in series. The battery module 211 is electrically connected to the BMS main control box 213. The BMS main control box 213 is implemented using existing technology. The BMS main control box 213 includes a battery management system, high and low voltage electrical protection components, etc. It is worth noting that the battery management system mainly detects, evaluates, protects and balances the batteries in the energy storage system; the battery management system monitors the cumulative processing power of the battery through various data, protects the battery safety, manages the charging and discharging rates of the battery, ensures that the battery operates within a safe range, and provides fault diagnosis and protection functions.

[0042] In this embodiment, the first receiving cavity 200 includes a temperature and humidity sensor, a smoke sensor and a water immersion sensor; the temperature and humidity sensor, the smoke sensor and the water immersion sensor are electrically connected to the EMS main control box respectively, and the temperature and humidity sensor, the smoke sensor and the water immersion sensor are used to monitor the working environment of the energy storage cabinet.

[0043] When the battery box catches fire and produces smoke, the smoke sensor detects the smoke signal and sends a signal to the energy management system in the EMS main control box. The energy management system controls the energy storage inverter to stop charging / discharging the battery box. At the same time, the energy storage inverter cuts off the connection with the mains.

[0044] The water immersion sensor is disposed in the first receiving cavity 200, and is disposed at the bottom of the first receiving cavity. The water immersion sensor detects whether water leakage occurs within the range of the energy storage cabinet. When water leakage occurs in the energy storage cabinet, the water immersion sensor sounds an alarm, thereby preventing the water leakage accident from causing damage to the energy storage cabinet.

[0045] The temperature and humidity sensor can be arranged in the first receiving cavity, and the temperature and humidity sensor is electrically connected to the energy management system. Specifically, it can be adjusted according to the layout requirements of the energy storage cabinet. In this embodiment, the temperature and humidity sensor is arranged on the insulation board 110 and close to one side of the control cabin 320.

[0046] In this embodiment, a mounting bracket is provided at the bottom of the cabinet body 100. Specifically, the four corners of the lower end of the cabinet body 100 are fixedly connected with cabinet brackets.

[0047] In the utility model, a plurality of battery boxes are arranged in the first receiving chamber 200, and a PCS cabin 310, a control cabin 320 and an equipment cabin 330 are arranged in the second receiving chamber 300; the battery system, PCS module, power distribution system, control system, etc. are integrated in the energy storage cabinet, and the overall structure is compact and occupies a small area. The receiving space in the energy storage cabinet is isolated into the first receiving chamber 200 and the second receiving chamber 300 by the insulation board 110, that is, the battery box 210 is isolated and separated from the control cabin 320, which effectively avoids the interference of a large amount of heat generated by the battery box in the process of charging, discharging and distributing electricity to the electric control system, avoids fire hazards, and ensures the safety and reliability of the battery box. The energy storage cabinet adopts a left and right opening and closing design, and a front and rear door opening design, which greatly improves the space utilization rate of the energy storage cabinet and the convenience of loading, unloading and maintenance. Equipped with a refrigeration air conditioner to cool and dissipate heat for the battery box, it can effectively reduce the heat generated by the battery charging and discharging in the battery box, avoid fire hazards, ensure the safety and reliability of the battery, and is suitable for on-site office electricity in various public places. The energy storage cabinet is equipped with an equipment compartment 330, which can timely extinguish the fire and give an alarm when a fire occurs in the energy storage cabinet, effectively control the fire, and improve the safety and functional integration of the energy storage cabinet. The equipment compartment 330 can be cooled separately through the louvers, further improving the safety of the energy storage cabinet.

[0048] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An energy storage cabinet, comprising a cabinet body, characterized in that: The cabinet body is provided with a receiving space and an opening, and the opening is connected to the receiving space; an insulation board is provided in the receiving space, and the insulation board is used to isolate the receiving space into a first receiving cavity and a second receiving cavity; a plurality of battery boxes are provided in the first receiving cavity; a PCS cabin, a control cabin and an equipment cabin are provided in the second receiving cavity.

2. An energy storage cabinet according to claim 1, characterized in that: The cabinet body includes a first cabinet side panel and a second cabinet side panel fixed on the left and right sides, a cabinet top panel, a cabinet bottom panel and a cabinet door at the top; the insulation board is fixedly connected to the cabinet top panel and the cabinet bottom panel respectively; and also includes a cabinet door, which is hinged on the cabinet body.

3. An energy storage cabinet according to claim 2, characterized in that: The cabinet doors include a first cabinet door, a second cabinet door, a third cabinet door and a fourth cabinet door; the side of the first cabinet door is hinged to the first cabinet side panel, the side of the second cabinet door is hinged to the second cabinet side panel; the side of the third cabinet door is hinged to the first cabinet side panel, and the side of the fourth cabinet door is hinged to the second cabinet side panel.

4. An energy storage cabinet according to claim 3, characterized in that: The cabinet body also includes a cabinet frame, which includes an upper frame, columns and a lower frame. The columns are vertically fixed between the upper frame and the lower frame, and the upper frame, the columns and the lower frame form a receiving space; the insulation board is used to isolate the receiving space into a first receiving cavity and a second receiving cavity; the first receiving cavity also includes a plurality of groups of beams distributed from bottom to top on the columns and used to place battery boxes, and load-bearing beams arranged on the columns along the direction in which the battery boxes are pushed in. The columns, insulation boards, beams and load-bearing beams form at least one battery placement area, and the battery box is placed on the upper surface of the load-bearing beam, and the height of the battery placement area is greater than the height of the battery box.

5. The energy storage cabinet according to claim 3, characterized in that: It also includes a second louver, which is installed on the fourth cabinet door and is specifically located in front of the equipment compartment.

6. The energy storage cabinet according to claim 3, characterized in that: The third cabinet door is equipped with a refrigeration air conditioner.

7. An energy storage cabinet according to claim 6, characterized in that: The control cabin includes an EMS main control box, and the EMS main control box is electrically connected to the battery box.

8. The energy storage cabinet according to claim 6, characterized in that: A high-voltage box and a fire-fighting mechanism are arranged at the front and rear of the equipment compartment. The fire-fighting mechanism includes a fire bottle for extinguishing a fire in the battery box. The high-voltage box is electrically connected to the battery box.

9. The energy storage cabinet according to claim 6, characterized in that: An energy storage converter is provided in the PCS cabin, and the energy storage converter is electrically connected to the battery box.

10. The energy storage cabinet according to claim 6, characterized in that: The first receiving chamber is also provided with a temperature and humidity sensor, a smoke sensor and a water immersion sensor; the temperature and humidity sensor, the smoke sensor and the water immersion sensor are electrically connected to the EMS main control box respectively.

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