Modularized energy storage container convenient to transport and splice

Abstract

The utility model discloses a modularized energy storage container convenient to transport and splice. The modularized energy storage container comprises a container body, battery bins are symmetrically arranged in the container body, a liquid cooling unit bin is arranged in the middle of the container body, an electrical bin is arranged at the lower end of the liquid cooling unit bin, and battery clusters and battery units are arranged in the battery bins; a container face door is further arranged on one side of the box body, and battery brackets are evenly arranged on the battery bin. A liquid cooling system, a high-voltage control system and a dehumidification system are mounted in the battery compartment; fire fighting systems are installed in the liquid cooling unit bin and the electrical bin, and an electrical convergence system is installed in the electrical bin. The liquid cooling system, the dehumidification system and the electrical convergence system are arranged, so that the use scene of multi-machine parallel connection is met. A plurality of systems can be combined to be used on a power grid side, when the plurality of systems are matched to be used, the splicing performance can be flexibly combined, all the systems are connected through centralized inverters, and single-cluster or individual-cluster independent replacement can be carried out under the condition of battery feed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and particularly relates to a modular energy storage container which is convenient for transportation and splicing. Background Technique

[0002] Existing industrial and commercial energy storage is basically distributed according to user-side energy storage and grid-side energy storage. The mode of industrial and commercial user-side energy storage generally adopts the form of ordinary industrial and commercial standard cabinets. Batteries, air conditioners, inverters, control boxes, and fire protection, etc. are arranged in the cabinets. Among them, the control of fire protection is generally integrated in the battery management unit. And the mode of industrial and commercial grid-side energy storage generally adopts the form of standard large containers, aiming to match the large-scale stored electricity on the grid side. Batteries, air conditioners, control boxes, busbar boxes, and fire protection, etc. are equipped in the containers, and generally adopt DC output. Therefore, industrial and commercial grid-side energy storage needs to be customized and developed according to the electricity requirements of the use scenario.

[0003] Moreover, the user-side energy storage of the existing scheme contains too many components, resulting in low stored electricity. And because of space problems, the fire protection control of the user-side energy storage is generally integrated into the battery management unit, so it cannot meet the use scenarios of multi-machine parallel connection and cannot be integrated with the fire protection host. Furthermore, the grid-side energy storage of the existing scheme adopts a centralized inverter, and single-cluster or individual clusters cannot be replaced separately under the condition of battery power feeding. And because the grid-side energy storage is heavy, it basically exceeds the maximum weight standard of road transportation in each country. Restricted by the size and weight of the grid-side energy storage, the requirements for the use site are relatively high, resulting in that road transportation must use designated trucks and the transportation roads will also be restricted. During its transportation, it is also necessary to report in advance and plan the route, resulting in high transportation costs.

[0004] Therefore, aiming at the above defects, it is urgent to design a modular energy storage container which is convenient for transportation and splicing and has a fire protection function. Content of the Utility Model

[0005] The purpose of the utility model is to provide a modular energy storage container which is convenient for transportation and splicing to solve the problems put forward in the above background technique. The following technical solutions are provided: A modular energy storage container which is convenient for transportation and splicing, comprising:

[0006] A box body, in which battery compartments are symmetrically arranged respectively. A liquid cooling unit compartment is arranged in the middle of the box body, and an electrical compartment is arranged at the lower end of the liquid cooling unit compartment. Battery clusters and battery units are arranged in the battery compartments; A container door is also arranged on one side of the box body, and battery brackets are evenly arranged on the battery compartments.

[0007] A liquid cooling system, a high-voltage control system and a dehumidification system are installed in the battery compartments; A fire protection system is installed in the liquid cooling unit compartment and the electrical compartment, and an electrical busbar system is installed in the electrical compartment.

[0008] The liquid cooling system includes liquid cooling water pipes, which are evenly arranged on the end walls of the two battery compartments. One end of the liquid cooling water pipe is connected to the liquid cooling main unit, and the liquid cooling main unit is fixedly arranged in the electrical compartment. A drain port is arranged below the liquid cooling water pipe, and the drain port is used to drain the coolant inside the liquid cooling water pipe when maintaining or replacing the coolant; an exhaust port is also arranged above the liquid cooling water pipe, and the exhaust port is used to discharge the air inside the liquid cooling water pipe when injecting cooling hot liquid into the system.

[0009] In this technical solution, the interior of the box body adopts a compartment design, forming multiple independent parts. The battery compartment is arranged with battery clusters, battery units, as well as a liquid cooling system, a high-voltage control system, and a dehumidification system. Two independent liquid cooling units are arranged in the liquid cooling unit compartment, respectively controlling separate battery clusters.

[0010] And the design full configuration of each battery cluster has eight lithium iron phosphate battery packs, and the number of battery packs can be reduced according to actual needs; each battery pack is integrated with a liquid cooling plate; check valves are provided at the inlet and outlet of the liquid cooling plate, which can prevent the coolant from flowing out during after-sales disassembly and assembly.

[0011] In any of the above technical solutions, further, the fire protection system includes a smoke sensor and a temperature sensor, which are respectively fixedly arranged at the upper end wall of the battery compartment. An aerosol fire extinguisher is also provided on the side wall of the battery compartment. An audible and visual alarm device is fixedly arranged on the container door panel. A water fire protection is fixedly arranged in the middle of the liquid cooling unit compartment, and a fire protection control host is fixedly arranged at the lower end of the liquid cooling unit compartment. The fire protection system also includes a blast relief panel, which is fixedly arranged at the upper end of the battery compartment, and the smoke sensor and the temperature sensor are placed above the blast relief panel.

[0012] In this technical solution, the battery compartments are arranged on the left and right sides of the container, and an IP54 waterproof space is formed by cooperating with the container door panel. The compartments are connected through protective coils; a battery bracket is also provided in the battery compartment. The bracket is designed and processed with galvanized sheet and is connected to the box body through fasteners. A metal contact is designed at the connection, so that the battery bracket and the box body become equipotential bodies; fireproof and heat-insulating materials with a thickness greater than 50 mm of the dehumidification system are installed in the interior decoration of the outer wall panel of the container.

[0013] The fire protection logic of the fire protection system is that when the fire protection control host receives a message from the smoke sensor or the temperature sensor, it starts the audible and visual alarm device; when the fire protection control host receives the information from both the smoke sensor and the temperature sensor at the same time, it determines that a fire has occurred and starts the aerosol fire extinguisher. The aerosol fire extinguisher is arranged on the top of the box body, and the gravity effect can make the fire extinguishing medium spread throughout the compartment faster; when the pressure in the container continues to rise to reach the blast relief pressure of the blast relief panel, the blast relief panel is automatically started; when the above methods cannot control the fire, it is necessary to start the water fire protection to fill the container with water to achieve fire extinguishing.

[0014] In any of the above technical solutions, further, the electrical busbar system includes a high-voltage control unit, a busbar terminal block, and a control terminal block. The busbar terminal block and the control terminal block are respectively fixedly arranged in the electrical compartment, and the high-voltage control unit is fixedly arranged at the lower end of the battery compartment.

[0015] The dehumidification system includes a dehumidifier fixedly installed on the end wall of the battery compartment. One end of the dehumidifier is connected with a condensation pipeline, and the other end of the condensation pipeline is placed outside the box body.

[0016] In this technical solution, one end of the condensation pipeline leads to the bottom of the box body, so that the condensed water can be discharged outside the box body. The busbar terminal block is designed with a copper bar to form a single output by paralleling the left and right clusters, or can directly output two separate paths through the terminal block. The high-voltage control unit, the busbar terminal block, and the control terminal block are arranged in the electrical compartment. An explosion-proof lighting, water immersion, access control system, etc. are also set on the box body, and information interaction can be carried out with the high-voltage control unit in the electrical busbar system; and an earth equipotential connection point is provided on the periphery of the box body; a forklift handling structure can be added to the box body according to actual conditions, so as to facilitate transfer.

[0017] The system in this application can be used alone on the user side, or multiple systems can be combined and used on the grid side. Multiple systems can be flexibly combined and used together, and the energy storage systems can be flexibly paralleled to achieve the purpose of capacity expansion. And when multiple systems are used together, a string-type inverter is adopted between multiple systems, and a single system with power feeding and faults can be freely replaced when multiple systems are combined and used. Thus, the efficiency of this device is improved.

[0018] The requirement for the shape of the use site is low, and it can be flexibly arranged according to sites of different sizes and shapes. Arranged in the width direction, the quantity can be selected according to the actual usage, and its arrangement method can be applied to sites of different shapes; the systems of the present utility model are fixed by standard container left and right connecting locks, and the disassembly and assembly are very convenient; the connection of the system can be connected to the grid by using a string-type inverter,

[0019] or can be connected to the grid by using a centralized inverter of the existing scheme.

[0020] The beneficial effects of the present utility model are: the box body and the container door form an IP54 waterproof space, thus ensuring the sealing performance of the box body. And the fire control is separated from the battery management unit, and through the set liquid cooling system, dehumidification system, and electrical busbar system, the use scenarios of multi-machine parallel connection are met.

[0021] And multiple systems can also be combined and used on the grid side. When multiple systems are used together, they can be flexibly combined and spliced, and a centralized inverter is used to connect between each system. When the battery is powered off, single clusters or individual clusters can be replaced separately.

[0022] This device can be arranged in the width direction, and the quantity can be selected according to the actual usage. Its layout method can be applied in sites with different shapes; the systems are fixed by standard container left and right connecting locks, and the disassembly and assembly are very convenient. Brief Description of the Drawings

[0023] Figure 1 is the external view schematic diagram of the present utility model;

[0024] Figure 2 is the internal schematic diagram of the box body;

[0025] Figure 3 is the structural schematic diagram of the liquid cooling system;

[0026] Figure 4 is the structural schematic diagram of the fire protection system;

[0027] Figure 5 is the structural schematic diagram of the electrical busbar system;

[0028] Figure 6 is the structural schematic diagram of the dehumidification system.

[0029] In the drawings, the reference numerals are: 10, box body; 11, battery compartment; 12, liquid cooling unit compartment; 13, electrical compartment; 14, battery bracket; 15, container face door; 20, liquid cooling system; 21, liquid cooling main unit; 22, liquid cooling water pipe; 23, drain port; 24, exhaust port; 30, fire protection system; 31, smoke sensor; 32, temperature sensor; 33, aerosol fire extinguisher; 34, sound and light alarm device; 35, fire protection control main unit; 36, water fire protection; 37, explosion vent panel; 40, high-voltage control system; 50, dehumidification system; 51, dehumidifier; 52, condensation pipeline; 60, electrical busbar system; 61, high-voltage control unit; 62, busbar terminal block; 63, control terminal block. Detailed Embodiments

[0030] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0031] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] Embodiment 1:

[0033] As Figure 1-3 shown, this embodiment provides a modular energy storage container that is convenient for transportation and splicing, including:

[0034] A box body 10, in which battery compartments 11 are symmetrically arranged respectively. A liquid cooling unit compartment 12 is provided in the middle of the box body 10, and an electrical compartment 13 is provided at the lower end of the liquid cooling unit compartment 12. Battery clusters and battery cells are arranged in the battery compartments 11; a container face door 15 is further provided on one side of the box body 10, and battery brackets 14 are evenly provided on the battery compartments 11.

[0035] A liquid cooling system 20, a high-voltage control system 40, and a dehumidification system 50 are installed in the battery compartments 11; a fire protection system 30 is installed in the liquid cooling unit compartment 12 and the electrical compartment 13, and an electrical busbar system 60 is installed in the electrical compartment 13.

[0036] The liquid cooling system 20 includes liquid cooling water pipes 22, which are evenly arranged on the end walls of the two battery compartments 11. One end of the liquid cooling water pipe 22 is connected to a liquid cooling main unit 21, and the liquid cooling main unit 21 is fixedly arranged in the electrical compartment 13. A drain port 23 is provided below the liquid cooling water pipe 22, and the drain port 23 is used to drain the coolant inside the liquid cooling water pipe 22 when maintaining or replacing the coolant; an exhaust port 24 is further provided above the liquid cooling water pipe 22, and the exhaust port 24 is used to discharge the air inside the liquid cooling water pipe 22 when injecting cooling hot liquid into the system.

[0037] In this technical solution, the interior of the box body 10 adopts a compartmentalized design to form multiple independent parts. Battery clusters, battery cells, as well as a liquid cooling system 20, a high-voltage control system 40, and a dehumidification system 50 are arranged in the battery compartments 11. Two independent liquid cooling units are arranged in the liquid cooling unit compartment 12 to control separate battery clusters respectively.

[0038] And each battery cluster is designed to be fully equipped with eight lithium iron phosphate battery packs, and the number of battery packs can be reduced according to actual needs; each battery pack is integrated with a liquid cooling plate; check valves are installed at both the inlet and outlet of the liquid cooling plate to prevent the coolant from flowing out during after-sales disassembly and assembly.

[0039] In a preferred embodiment of the present utility model:

[0040] As Figure 4 shown, specifically, the fire protection system 30 includes a smoke sensor 31 and a temperature sensor 32, which are respectively fixedly arranged at the upper end wall of the battery compartment 11. An aerosol fire extinguisher 33 is also provided on the side wall of the battery compartment 11. An audible and visual alarm device 34 is fixedly arranged on the container face door 15. A water fire protection 36 is fixedly arranged in the middle of the liquid cooling unit compartment 12. A fire protection control host 35 is fixedly arranged at the lower end of the liquid cooling unit compartment 12. The fire protection system 30 further includes a blast relief panel 37, which is fixedly arranged at the upper end of the battery compartment 11, and the smoke sensor 31 and the temperature sensor 32 are placed above the blast relief panel 37.

[0041] In this technical solution, the battery compartments 11 are arranged on the left and right sides of the container, and an IP54 waterproof space is formed in cooperation with the container face door 15. The compartments are connected through protective coils; a battery tray 14 is also provided in the battery compartment 11. The tray is designed and processed with galvanized sheet and is connected to the box body 10 through fasteners. A metal contact is designed at the connection, so that the battery tray 14 and the box body 10 become equipotential bodies; the outer wall panel of the container is decorated with fireproof and heat-insulating materials with a thickness greater than 50 mm of the dehumidification system.

[0042] The fire protection logic of the fire protection system 30 is that when the fire protection control host 35 receives a message from the smoke sensor 31 or the temperature sensor 32, it starts the audible and visual alarm device 34; when the fire protection control host 35 receives information from both the smoke sensor 31 and the temperature sensor 32 at the same time, it determines that a fire has occurred and starts the aerosol fire extinguisher 33. The aerosol fire extinguisher 33 is arranged on the top of the box body 10, and the gravity effect can make the fire extinguishing medium spread faster throughout the cabin; when the pressure in the container continues to rise to the blast relief pressure of the blast relief panel 37, the blast relief panel is automatically started; when the above methods cannot control the fire, it is necessary to start the water fire protection 36 to fill the container with water to achieve fire extinguishing.

[0043] In a preferred embodiment of the present utility model:

[0044] As Figure 5-6 shown, specifically, the electrical busbar system 60 includes a high-voltage control unit 61, a busbar terminal block 62, and a control terminal block 63. The busbar terminal block 62 and the control terminal block 63 are respectively fixedly arranged in the electrical compartment 13, and the high-voltage control unit 61 is fixedly arranged at the lower end of the battery compartment 11 respectively.

[0045] The dehumidification system 50 includes a dehumidifier 51 fixedly installed on the end wall of the battery compartment 11. One end of the dehumidifier 51 is connected to a condensation pipe 52, and the other end of the condensation pipe 52 is placed outside the box body 10.

[0046] In this technical solution, one end of the condensation pipe 52 leads to the bottom of the box body 10, so that the condensed water can be discharged outside the box body 10. The busbar terminal block is designed with a copper bar to form a single output by paralleling the left and right clusters, or can be directly divided into two separate outputs through the terminal block. A high-voltage control unit 61, a busbar terminal block 62, and a control terminal block 63 are arranged in the electrical compartment 13. An explosion-proof lighting, water immersion, access control system light, etc. are also provided on the box body 10, and information interaction can be carried out with the high-voltage control unit 61 in the electrical busbar system 60; and an earth equipotential connection point is provided on the periphery of the box body 10; a forklift handling structure can be added to the box body 10 according to actual conditions, so as to facilitate transfer.

[0047] The system in this application can be used alone on the user side or multiple systems can be used in combination on the grid side. Multiple systems can be flexibly combined and used. The energy storage system can be flexibly paralleled to achieve the purpose of capacity expansion. And when multiple systems are used in combination, a string inverter is adopted between multiple systems, and a single system with power feeding and faults can be freely replaced when multiple systems are used in combination. Thus, the efficiency of this device is improved.

[0048] The requirement for the shape of the use site is low, and it can be flexibly arranged according to sites of different sizes and shapes. Arranged in the width direction, the quantity can be selected according to the actual usage, and its arrangement method can be applied in sites of different shapes; the systems of the present utility model are fixed by standard container left and right connection locks, and the disassembly and assembly are very convenient; the connection of the system can be connected to the grid by a string inverter,

[0049] or can be connected to the grid by a centralized inverter of the existing scheme.

[0050] The embodiments of the present application have been described above in conjunction with the drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are only illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A modular energy storage container that is easy to transport and splice, characterized in that: include: A box body (10), wherein battery compartments (11) are symmetrically arranged inside the box body (10), a liquid cooling unit compartment (12) is arranged in the middle of the box body (10), an electrical compartment (13) is arranged at the lower end of the liquid cooling unit compartment (12), and a battery cluster and a battery unit are arranged in the battery compartment (11); The battery compartment (11) is installed with a liquid cooling system (20), a high-voltage control system (40) and a dehumidification system (50); the liquid cooling unit compartment (12) and the electrical compartment (13) are installed with a fire protection system (30); and the electrical compartment (13) is installed with an electrical busbar system (60).

2. A modular energy storage container that is easy to transport and assemble according to claim 1, characterized in that: The liquid cooling system (20) comprises: A liquid cooling water pipe (22) is evenly arranged on the end walls of the two battery compartments (11), one end of the liquid cooling water pipe (22) is connected to a liquid cooling host (21), the liquid cooling host (21) is fixedly arranged in the electrical compartment (13), and a drain port (23) is arranged below the liquid cooling water pipe (22), and the drain port (23) is used to discharge the coolant inside the liquid cooling water pipe (22) when maintaining or replacing the coolant; An exhaust port (24) is also provided above the liquid cooling water pipe (22), and the exhaust port (24) is used to exhaust the air inside the liquid cooling water pipe (22) when the system is injected with cooling hot liquid.

3. A modular energy storage container that is easy to transport and assemble according to claim 1, characterized in that: A container door (15) is also provided on one side of the box body (10), and battery brackets (14) are evenly arranged on the battery compartment (11).

4. A modular energy storage container that is easy to transport and assemble according to claim 3, characterized in that: The fire fighting system (30) comprises: A smoke sensor (31) and a temperature sensor (32) are respectively fixedly arranged on the upper end wall of the battery compartment (11); an aerosol fire extinguisher (33) is also arranged on the side wall of the battery compartment (11); an audible and visual alarm device (34) is fixedly arranged on the container face door (15); a water fire extinguisher (36) is fixedly arranged in the middle of the liquid cooling unit compartment (12); and a fire control host (35) is fixedly arranged at the lower end of the liquid cooling unit compartment (12).

5. A modular energy storage container that is easy to transport and assemble according to claim 4, characterized in that: The fire protection system (30) further comprises an explosion relief plate (37), wherein the explosion relief plate (37) is fixedly arranged at the upper end of the battery compartment (11), and the smoke sensor (31) and the temperature sensor (32) are placed above the explosion relief plate (37).

6. A modular energy storage container that is easy to transport and assemble according to claim 1, characterized in that: The electrical busbar system (60) comprises a high-voltage control unit (61), a busbar terminal block (62) and a control terminal block (63); the busbar terminal block (62) and the control terminal block (63) are respectively fixedly arranged in the electrical compartment (13), and the high-voltage control unit (61) is respectively fixedly arranged at the lower end of the battery compartment (11).

7. A modular energy storage container that is easy to transport and assemble according to claim 1, characterized in that: The dehumidification system (50) comprises: The dehumidifier (51) is fixedly mounted on the end wall of the battery compartment (11); one end of the dehumidifier (51) is connected to a condensation pipe (52); the other end of the condensation pipe (52) is placed outside the box (10).

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