CN219697339U - Distributed battery digital energy storage container - Google Patents

Abstract

The utility model provides a distributed battery digital energy storage container which comprises a container body comprising two energy storage chambers and a device room, wherein the two energy storage chambers are arranged on two opposite sides of the device room, a cooling liquid storage tank is arranged in the device room and is communicated with a heat exchange device on a battery frame through a liquid path connecting device, two opposite sides of the battery frame are respectively provided with a liquid inlet branch pipe and a liquid outlet branch pipe, and the liquid inlet branch pipe and the liquid outlet branch pipe are respectively communicated with the liquid path connecting device through a first switch valve and a second switch valve. The distributed battery digital energy storage container disclosed by the utility model has the advantages that the use reliability of an energy storage system is improved, the risk of single-point faults is reduced, the power supply stability is ensured, the performance of the energy storage system is optimized, meanwhile, the space utilization rate is improved, the construction cost is reduced, and the temperature in an energy storage chamber is ensured to be in a relatively stable and uniform working environment.

Description

Distributed battery digital energy storage container

Technical Field

The utility model relates to the technical field of energy storage systems, in particular to a distributed battery digital energy storage container.

Background

At present, new energy power generation such as wind power, photovoltaic and the like has the characteristics of intermittence, volatility and the like, and large-scale grid connection of the new energy power generation can face a huge difficult problem of digestion. The energy storage system is a key part for solving the problems of large-scale access, wind discarding and light discarding of renewable energy sources, is an essential component part for development of distributed energy sources, smart grids and energy Internet, and is an important supporting part for solving peak clipping and valley filling of conventional power and improving the power generation and transmission efficiency, safety and economy of the conventional energy sources.

At present, a container type energy storage system is commonly adopted in new energy configuration energy storage projects in the market, thousands of chemical batteries are piled in a container, the battery is particularly sensitive to temperature during operation, if the temperature of a battery core is unevenly distributed, heat dissipation is not timely, the temperature difference between the batteries can be increased, larger capacity difference is caused, the service lives of the battery and the whole system are influenced, local hot spots are caused when the battery is heavy, and safety accidents such as fire disaster and the like are caused. The existing container battery plug-in box has no independent air duct design, so that insufficient heat dissipation and non-uniformity are caused; the structure is complex, the space utilization rate is low, and the heat dissipation effect is poor; the air duct in the container is long, the cold air quantity of the far-end air outlet is large, the cold air quantity of the air outlet close to the air conditioning unit end is small, and the cold air quantity distribution is too serious. Uneven heat dissipation and over-high temperature rise can cause the problem that the consistency of the battery pack is poor, so that the internal resistance of the battery pack is increased, and the explosion thermal runaway of the battery pack is caused by heating. As known from the common sense of fire extinguishment, the most probable occurrence of electric fire in the box body is that dry powder is used as fire extinguishing medium, and the dry powder medium is usually stored in an environment of about 5 ℃ and is not suitable for being stored in a high-temperature environment.

How to ensure the temperature uniformity of the battery during the operation of an electrochemical energy storage system is a problem to be solved urgently. The application publication number is CN109585735A Chinese patent, discloses an energy storage container, which comprises a box body, a storage rack arranged in the box body and energy storage batteries arranged on the storage rack, wherein two sides of the box body are provided with double-door bodies which are convenient for installing and debugging the energy storage batteries. But the internal unit of the inside air conditioner of this patent box has taken up the space in the box, has increased the volume of box, and set up the air conditioner internal unit in the box and brought very big inconvenience for installation and maintenance in addition to still need increase fan unit and play the radiating effect at the air conditioner and be used for dispelling the heat to the box inside, the structure is complicated, and heat dispersion is lower, and the cost is higher, is unfavorable for energy storage container's popularization and use and maintenance.

Disclosure of Invention

In view of the foregoing, the present utility model aims to provide a distributed battery digital energy storage container, so as to solve at least one of the above technical problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a distributed battery digital energy storage container comprising:

the box body comprises two energy storage chambers and an equipment room, wherein the two energy storage chambers are arranged on two opposite sides of the equipment room, each energy storage chamber is provided with a plurality of energy storage battery assemblies, and an inverter device is arranged in the equipment room;

the cooling liquid storage tank is arranged between the devices and is communicated with the heat exchange device on the energy storage battery assembly through the liquid path connecting device;

the energy storage battery assembly comprises a battery frame, a plurality of supporting plates are arranged on the battery frame, a battery module is arranged on each supporting plate, a heat exchange device is arranged on at least one battery module, liquid inlet branch pipes and liquid outlet branch pipes are respectively arranged on two opposite sides of the battery frame, and the liquid inlet branch pipes are communicated with the liquid path connecting device through first switch valves and are communicated with the heat exchange device through the liquid inlet branch pipes; the liquid outlet branch pipe is communicated with the liquid path connecting device through the second switch valve and is communicated with the heat exchange device through the liquid outlet branch pipe, and the heat exchange device is used for carrying out liquid cooling heat exchange on the battery module on the energy storage battery assembly.

Further, the equipment room includes fire control equipment room, vary voltage room and the contravariant room that sets gradually from front to back, sets up transformer device and circuit module in vary voltage room, the direct current voltage of battery module output on the energy storage battery module is through converging the back access inverter device's direct current side, and transformer device's low pressure side is connected with inverter device's alternating current side, and transformer device's high pressure side is connected with circuit module's inlet wire subassembly, and circuit module's outlet wire subassembly is used for connecting the electric wire netting.

Further, the fire-fighting equipment room is provided with a heat pump assembly, the heat pump assembly is used for cooling the cooling liquid in the cooling liquid storage tank, and/or the heat pump assembly is used for cooling the energy storage room or the energy storage room and the inversion room in an air cooling way through a circulating pipeline and an air outlet device.

Further, the energy storage room includes two independent cavities, is first cavity, second cavity respectively, first cavity with the second cavity passes through the baffle and separates first cavity the inside a plurality of energy storage battery pack that all set up of second cavity every cavity of energy storage room all sets up first switch door subassembly, first switch door subassembly is including being two first door bodies to the open form.

Further, set up the second switch door subassembly on the box, the second switch door subassembly is including being two second door bodies that open the form, sets up breather on the second door body, the second switch door subassembly is used for the switching of fire control equipment room or fire control equipment room, contravariant room.

Further, the battery frame comprises a plurality of laminated frames, each laminated frame comprises four laminated upright posts, the four laminated upright posts are enclosed to be arranged at four azimuth angles of the supporting plate, the laminated upright posts in the upper adjacent two layers of laminated frames are connected in a plugging mode, a plurality of battery modules are arranged on each supporting plate, and heat exchange devices are arranged above the battery modules on each laminated frame.

Further, the heat exchange device comprises a heat exchange plate body, a first installation part is arranged above the heat exchange plate body, the first installation part is a baffle structure which is formed above the heat exchange plate body and is used for accommodating a heat exchange assembly in a closed mode, a liquid inlet pipeline and a liquid outlet pipeline are arranged on the first installation part, the liquid inlet pipeline is communicated with a liquid inlet branch pipe, and the liquid outlet pipeline is communicated with the liquid outlet branch pipe; the heat exchange plate comprises a heat exchange plate body, and is characterized in that a second installation part is arranged below the heat exchange plate body, the second installation part is a baffle plate structure which is formed into a closed shape below the heat exchange plate body, an accommodating groove is formed between the first installation part and the second installation part, the accommodating groove is formed in the periphery of the heat exchange plate body, and an insulating tape is arranged inside the accommodating groove.

Further, the heat exchange assembly comprises a plurality of heat exchange pipes, the end parts of two adjacent heat exchange pipes are connected through heat exchange joints, heat exchange cooling liquid flowing in through a liquid inlet pipeline flows in an S shape in the heat exchange pipes, the heat exchange cooling liquid in the heat exchange pipes flows out through a liquid outlet pipeline after heat exchange, and the liquid inlet pipeline and the liquid outlet pipeline are arranged on two opposite sides of the heat exchange assembly.

Further, a liquid drain pipe is arranged on the first installation portion, the liquid drain pipe is arranged at the lowest position of the space containing the heat exchange component on the first installation portion, wherein the liquid drain pipe is communicated with the liquid outlet branch pipe, or a bus plate is arranged on the second installation portion, the bus plate and the outer side wall of the second installation portion are respectively provided with an insulating belt and a drain groove, the liquid drain pipe is communicated with the drain grooves, and a dehumidifying bag is arranged in the drain grooves.

Furthermore, a positioning groove is formed between two adjacent heat exchange joints on the same side of the heat exchange tube, and a limiting block is arranged in the positioning groove.

Compared with the prior art, the distributed battery digital energy storage container has the following advantages:

according to the distributed battery digital energy storage container, the inverter is arranged between the two direct current battery cabins, so that the use reliability of the energy storage system is improved, the risk of single-point faults is reduced, the stable power supply is ensured, the performance of the energy storage system is optimized, the maintenance of the energy storage system in the container is facilitated, meanwhile, the cooling liquid tank in the fire-fighting equipment is utilized to flexibly use between the heat dissipation function of the battery module and the fire-fighting function of the container, the device setting is reduced, the space utilization rate is improved, the construction cost is reduced, and the temperature in the energy storage chamber is ensured to be in a relatively stable and uniform working environment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic front view of a digital energy storage container with distributed battery according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a distributed battery digital energy storage container according to an embodiment of the present utility model;

FIG. 3 is a schematic side view of a door opening and closing assembly in a distributed battery digital energy storage container according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of an energy storage battery assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the part II of FIG. 4 in enlarged configuration;

fig. 6 is a schematic side view of a second view of an energy storage battery assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic view of the part of FIG. 6 showing an enlarged configuration of the portion I;

fig. 8 is a schematic side view of an exploded structure of a single-layer battery module assembly heat exchange device in an energy storage battery assembly according to an embodiment of the present utility model;

FIG. 9 is a schematic side view of a heat exchange assembly according to an embodiment of the present utility model;

FIG. 10 is a schematic side view of a heat exchange assembly according to an embodiment of the present utility model from a second perspective;

FIG. 11 is a schematic cross-sectional view of a heat exchange assembly according to an embodiment of the present utility model;

FIG. 12 is a schematic side view of a heat exchange assembly according to an embodiment of the present utility model;

FIG. 13 is a schematic view of a second construction of a heat exchange assembly according to an embodiment of the present utility model;

reference numerals illustrate:

100-an energy storage container; 1-a box body; 101-an energy storage chamber; 10101-a first chamber; 10102-a second chamber; 102-between devices; 1021-fire equipment room; 1022-a transformer chamber; 1023-an inverter chamber; 2-a first door opening and closing assembly; 201-a first door body; 3-a second door opening and closing assembly; 301-a ventilation device; 4-an energy storage battery assembly; 401-battery rack; 4011-stacking posts; 402-a support plate; 403-a battery module; 4031-terminal plug posts; 404-liquid inlet branch pipe; 405-a branched liquid inlet pipe; 406-a liquid outlet branch pipe; 407-a branch tapping pipe; 5-a cooling liquid storage tank; 6-a liquid path connecting device; 7-a heat pump assembly; 8-a circulation pipeline; 9-an air outlet device; 10-transformer means; 11-a protective net; 12-a line module; 13-an inverter device; 14-a first switching valve; 15-a second switching valve; 16-a heat exchange device; 1601-heat exchange plate body; 16011-avoidance holes; 1602-a first mount; 1603-a second mount; 1604 a heat exchange assembly; 16041-heat exchange tubes; 16042-heat exchange joint; 16043-detent; 16044-avoidance; 1605-liquid inlet pipe; 1606-a liquid outlet conduit; 1607-drain; 1608-limiting block; 1609-receiving recess; 1610-insulating tape; 1611-a busbar; 1612-sink.

Detailed Description

In order to facilitate understanding of the technical means, objects and effects of the present utility model, embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

It is to be noted that all terms used for directional and positional indication in the present utility model, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "low", "lateral", "longitudinal", "center", etc. are merely used to explain the relative positional relationship, connection, etc. between the components in a particular state (as shown in the drawings), and are merely for convenience of description of the present utility model, and do not require that the present utility model must be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model. Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 13, the present utility model provides a distributed battery digital energy storage container, comprising:

the box body 1 comprises two energy storage chambers 101 and an equipment room 102, wherein the two energy storage chambers 101 are arranged on two opposite sides of the equipment room 102, each energy storage chamber 101 is provided with a plurality of energy storage battery assemblies 4, and an inverter device 13 is arranged in the equipment room 102;

a cooling liquid storage tank 5, which is arranged between the devices 102, wherein the cooling liquid storage tank 5 is communicated with a heat exchange device 16 on the energy storage battery assembly 4 through a liquid path connecting device 6;

the energy storage battery assembly 4 comprises a battery frame 401, a plurality of support plates 402 are arranged on the battery frame 401, a battery module 403 is arranged on each support plate 402, a heat exchange device 16 is arranged on at least one battery module 403, liquid inlet branch pipes 404 and liquid outlet branch pipes 406 are respectively arranged on two opposite sides of the battery frame 401, and the liquid inlet branch pipes 404 are communicated with the liquid pipeline connecting device 6 through first switch valves 14 and are communicated with the heat exchange device 16 through liquid inlet branch pipes 405; the liquid outlet branch pipe 406 is communicated with the liquid path connecting device 6 through the second switch valve 15 and is communicated with the heat exchange device 16 through the liquid outlet branch pipe 407, and the heat exchange device 16 is used for carrying out liquid cooling heat exchange on the battery module 403 on the energy storage battery assembly 4.

The distributed battery digital energy storage container of the utility model sets two energy storage chambers 101 containing a plurality of energy storage battery components 4 at two opposite sides of a device room 102, namely PCS inverter realizing the alternating current function is set in the middle of two direct current battery cabins, when one energy storage cabin breaks down or needs maintenance, the electric energy of the other energy storage cabin is delivered to a load end, thereby keeping continuous power supply of the system, reducing the risk of single point fault, improving the reliability of the energy storage system, the energy storage battery components 4 in the container can convert alternating current in a power grid and new energy sources such as solar energy and wind energy into direct current through an inverter device 13, meanwhile, when electric equipment is required to discharge, the direct current of the energy storage battery components 4 can supply power and output according to a battery pipe system BMS, improving the utilization efficiency and stability of electric power resources, simultaneously, by setting a cooling liquid storage tank 5 in the device room 102 which is separated from the energy storage chamber 101, the cooling liquid storage tank 5 is one of the internal energy storage equipment of the container, the cooling liquid storage tank 5 is communicated with a heat exchange device 16 on the energy storage battery components 4 through a liquid way connecting device 6, the cooling liquid storage tank 16 is communicated with a heat exchange valve 16 in the heat exchange device 16 of the energy storage battery components 4 through a liquid channel connecting device 16, the cooling liquid inlet valve 16 is communicated with a liquid inlet valve 404 of a liquid storage device 404 in the second liquid channel 404, and a liquid inlet valve 404 is communicated with a liquid inlet valve 404 is arranged in the liquid storage device 16 through a heat exchange valve 404, the heat exchange device 16 is used for carrying out liquid cooling heat exchange on the battery module 403 without starting the fire-fighting equipment by combining the heat exchange device 16 arranged on the at least one battery module 403 on the energy storage battery module 4 by using the cooling liquid storage tank 5 of the fire-fighting equipment, and executing the fire extinguishing function of the cooling liquid storage tank 5 when the cooling liquid is needed to extinguish fire, so that the heat dissipation function of the battery module 403 and the fire extinguishing function of the container are flexibly switched for use, and the safety risk of unstable or initiation of output current caused by overhigh temperature of the battery module 403 during use is avoided.

According to the distributed battery digital energy storage container, the inverter is arranged between the two direct current battery cabins, so that the use reliability of the energy storage system is improved, the risk of single-point faults is reduced, the stable power supply is ensured, the performance of the energy storage system is optimized, the maintenance of the energy storage system in the container is facilitated, meanwhile, the cooling liquid tank in the fire-fighting equipment is utilized to flexibly use between the heat dissipation function of the battery module 403 and the fire-fighting function of the container, the device arrangement is reduced, the space utilization rate is improved, the construction cost is reduced, and the temperature in the energy storage chamber 101 is ensured to be in a relatively stable and uniform working environment.

As a preferred example of the present utility model, the equipment room 102 includes a fire-fighting equipment room 1021, a transformation room 1022 and an inversion room 1023 sequentially arranged from front to back, a transformer device 10 and a line module 12 are arranged in the transformation room 1022, the dc voltage output by the battery module 403 on the energy storage battery assembly 4 is connected to the dc side of the inverter device 13 after being converged, the low voltage side of the transformer device 10 is connected to the ac side of the inverter device 13, the high voltage side of the transformer device 10 is connected to the incoming line assembly of the line module 12, and the outgoing line assembly of the line module 12 is used for connecting to the power grid. Preferably, a protective net 11 is provided in the circumferential direction of the transformer apparatus 10, the protective net 11 is a stainless steel protective net, and an electromagnetic door lock is provided on the transformer apparatus 10, and is opened only when the transformer apparatus 10 is not in operation.

The arrangement ensures that the fire-fighting equipment, the voltage transformation device and the inversion device are arranged in different chambers of the equipment room 102 in a separated mode, and the use of each device is stable and reliable.

As a preferred example of the present utility model, a heat pump assembly 7 is disposed in the fire-fighting equipment chamber 1021, the heat pump assembly 7 is configured to cool the cooling liquid in the cooling liquid storage tank 5, and/or the heat pump assembly 7 is configured to cool the energy storage chamber 101 or the energy storage chamber 101 and the inverter chamber 1023 by air cooling through a circulation pipeline 8 and an air outlet device 9. As an example of the present utility model, the heat pump assembly 7 includes a compressor, an evaporator, a condenser, and the like, the evaporator of the heat pump assembly is disposed outside the cooling liquid storage tank 5 and is used for cooling the cooling liquid in the cooling liquid storage tank 5, the heat pump assembly 7 conveys the air after heat exchange to the energy storage chamber 101 or the inverter chamber 1023 through the circulation pipeline 8, and further the air outlet device 9 performs air cooling on the energy storage chamber 101 and the inverter chamber 1023, which is similar to an air conditioning apparatus inside the energy storage container 100, and will not be repeated herein. As a preferred example of the present utility model, the cooling liquid in the cooling liquid storage tank 5 may be any one of water, fire-fighting cooling liquid, mineral oil, and liquid coolant such as ethylene glycol and propylene glycol.

This setting has further improved the reliability of energy storage room 101 inside temperature control for energy storage battery assembly 4 is in comparatively stable operational environment all the time, guarantees that energy storage battery assembly 4 charges and discharges and uses reliably.

As a preferred example of the present utility model, the energy storage chamber 101 includes two independent chambers, namely a first chamber 10101 and a second chamber 10102, the first chamber 10101 and the second chamber 10102 are separated by a partition, a plurality of energy storage battery assemblies 4 are disposed inside the first chamber 10101 and the second chamber 10102, a first door opening and closing assembly 2 is disposed in each chamber of the energy storage chamber 101, and the first door opening and closing assembly 2 includes two first door bodies 201 that are in a split shape.

This setting sets up the double door body structure that can open through setting up one side at energy storage container setting up energy storage battery pack 4, first cavity 10101 with second cavity 10102 is the front and back form and arranges for when battery installation, debugging or routine maintenance, open double door body, operating personnel can carry out each item operation in the energy storage container 100 outside, and need not to get into the interior electrified region of box, convenient operation not only, and the box both sides open the door and accord with safety regulation UL9540 requirement and international safety regulation, can avoid causing personal injury and other incident that probably takes place, the security is higher, in addition, because operating personnel can accomplish each item operation in the box outside, need not to leave the pavement in then box 1, can increase the interior energy storage battery capacity of box 1, improve box 1 space utilization.

As a preferred example of the present utility model, a second door opening/closing unit 3 is provided on the case 1, the second door opening/closing unit 3 includes two second door bodies in a split shape, and a ventilation device 301 is provided on the second door bodies, and the second door opening/closing unit 3 is used for opening/closing the fire-fighting equipment room 1021 or the inverter room 1023.

The arrangement ensures the working reliability of the heat pump assembly 7, is convenient for an operator to install and maintain, and improves the use reliability of the distributed battery digital energy storage container.

As a preferred example of the present utility model, the battery rack 401 includes a plurality of laminated frames, each laminated frame includes four laminated columns 4011, the four laminated columns 4011 are surrounded at four azimuth angles of the support plate 402, the laminated columns 4011 in two upper and lower adjacent laminated frames are connected in a plugging manner, and a plurality of battery modules 403 are disposed on each layer of the support plate 402.

This setting discloses a battery rack 401 that can dismantle and stack and use, four the structural setting of range upon range of stand 4011 and backup pad 402 guarantees range upon range of frame and uses stably, and simultaneously, the range upon range of frame of being convenient for carries out adaptability fast adjustment according to the capacity of energy storage container 100, and the suitability is stronger.

As a preferred example of the present utility model, the heat exchange device 16 includes a heat exchange plate 1601, a first mounting portion 1602 is disposed above the heat exchange plate 1601, the first mounting portion 1602 is configured to accommodate and place a heat exchange assembly 1604, and a second mounting portion 1603 is disposed below the heat exchange plate 1601, and the second mounting portion 1603 is configured to be connected to the battery module 403.

Preferably, the second mounting portion 1603 is sleeved above the battery module 403, the heat exchange plate 1601 is an insulating heat conducting plate, for example, a structure made of heat conducting silica gel, heat conducting ceramic, etc., the heat exchange plate 1601 is provided with an avoidance hole 16011, correspondingly, the heat exchange assembly 1604 is provided with an avoidance portion 16044, and the terminal plug-in post 4031 on the battery module 403 can pass through the avoidance hole 16011 and then extend into the avoidance portion 16044.

On the one hand, the arrangement ensures the working efficiency of the heat exchange device 16, and simultaneously is convenient for the installation and positioning of the heat exchange device 16, thereby improving the installation efficiency and the assembly stability.

As a preferred example of the present utility model, the first mounting portion 1602 is a closed baffle structure formed above the heat exchange plate 1601, a liquid inlet pipe 1605 and a liquid outlet pipe 1606 are provided on the first mounting portion 1602, the liquid inlet pipe 1605 communicates with the liquid inlet branch pipe 405, the liquid outlet pipe 1606 communicates with the liquid outlet branch pipe 407, the second mounting portion 1603 is a closed baffle structure formed below the heat exchange plate 1601, a receiving groove 1609 is formed between the first mounting portion 1602 and the second mounting portion 1603, the receiving groove 1609 is formed on the outer periphery of the heat exchange plate 1601, and an insulating tape 1610 is provided inside the receiving groove 1609.

This arrangement has both guaranteed the convenience and the stability of heat transfer device 16 relative battery module 403 installation, has also guaranteed the reliability of heat transfer module 1604 heat transfer simultaneously, and the structure adds singly, is convenient for assemble.

As a preferred example of the present utility model, a drain 1607 is provided on the first mounting portion 1602, the drain 1607 is provided at a lowest portion of a space accommodating the heat exchange assembly 1604 on the first mounting portion 1602, and the drain 1607 communicates with the outlet manifold 406. This arrangement avoids the safety risk of condensation water generated by the heat exchange assembly 1604 collecting at the first mounting portion 1602.

Alternatively, as shown in fig. 13, a bus plate 1611 is provided on the second mounting portion 1603, a bus groove 1612 is formed by the bus plate 1611 and the outer wall of the second mounting portion 1603, the insulating tape 1610, and the outer wall of the first mounting portion 1602, the drain pipe 1607 communicates with the bus groove 1612, and a dehumidification bag is provided in the bus groove 1612. As an example of the present utility model, the dehumidifying bag is internally wrapped with a moisture-absorbing material, and the moisture-absorbing material is a chemical moisture-absorbing material particle or a foaming structure. Preferably, a top cover plate is disposed above the collecting channel 1612, and the top cover plate is used for supporting the branched liquid outlet pipe 407.

As a preferred example of the present utility model, a limiting block 1608 is disposed between the heat exchange assembly 1604 and the inner wall of the first mounting portion 1602. This arrangement further ensures the stability of the assembly of the heat exchange assembly 1604 with the first mounting portion 1602.

As a preferred example of the present utility model, the heat exchange assembly 1604 includes a plurality of heat exchange tubes 16041, the ends of two adjacent heat exchange tubes 16041 are connected by a heat exchange joint 16042, the heat exchange cooling liquid flowing in through a liquid inlet tube 1605 flows in an S-shape in the heat exchange tubes 16041, the heat exchange cooling liquid in the heat exchange tubes 16041 flows out through a liquid outlet tube 1606 after exchanging heat, and the liquid inlet tube 1605 and the liquid outlet tube 1606 are disposed on opposite sides of the heat exchange assembly 1604.

This arrangement lengthens the flow path of the heat exchange cooling fluid inside the heat exchange assembly 1604 on each group of battery modules 403, and improves the heat exchange efficiency of the heat exchange assembly 1604. Preferably, the heat exchange assembly 1604 is a plastic heat exchange structure, so that the reliability and safety of the work of the heat exchange assembly 1604 are further improved, and the production cost is reduced.

As a preferred example of the present utility model, a positioning slot 16043 is formed between two adjacent heat exchange joints 16042 on the same side of the heat exchange tube 16041, and the stopper 1608 is inserted into the positioning slot 16043.

This arrangement further ensures the stability of the assembled connection of the heat exchange assembly 1604 with respect to the second mounting portion 1603.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A distributed battery digital energy storage container, comprising:

the box body (1) comprises two energy storage chambers (101) and an equipment room (102), wherein the two energy storage chambers (101) are arranged on two opposite sides of the equipment room (102), each energy storage chamber (101) is provided with a plurality of energy storage battery assemblies (4), and an inverter device (13) is arranged in the equipment room (102);

the cooling liquid storage tank (5) is arranged between the devices (102), and the cooling liquid storage tank (5) is communicated with the heat exchange device (16) on the energy storage battery assembly (4) through the liquid path connecting device (6);

the energy storage battery assembly (4) comprises a battery frame (401), a plurality of support plates (402) are arranged on the battery frame (401), a battery module (403) is arranged on each support plate (402), a heat exchange device (16) is arranged on at least one battery module (403), liquid inlet branch pipes (404) and liquid outlet branch pipes (406) are respectively arranged on two opposite sides of the battery frame (401), and the liquid inlet branch pipes (404) are communicated with the liquid path connecting device (6) through first switch valves (14) and are communicated with the heat exchange device (16) through liquid inlet branch pipes (405); the liquid outlet branch pipe (406) is communicated with the liquid path connecting device (6) through the second switch valve (15), and is communicated with the heat exchange device (16) through the liquid outlet branch pipe (407), and the heat exchange device (16) is used for carrying out liquid cooling heat exchange on the battery module (403) on the energy storage battery assembly (4).

2. The distributed battery digital energy storage container according to claim 1, wherein the equipment room (102) comprises a fire-fighting equipment room (1021), a transformation room (1022) and an inversion room (1023) which are sequentially arranged from front to back, a transformer device (10) and a circuit module (12) are arranged in the transformation room (1022), direct-current voltage output by the battery module (403) on the energy storage battery module (4) is connected to a direct-current side of the inverter device (13) after being converged, a low-voltage side of the transformer device (10) is connected with an alternating-current side of the inverter device (13), a high-voltage side of the transformer device (10) is connected with an incoming line assembly of the circuit module (12), and an outgoing line assembly of the circuit module (12) is used for connecting a power grid.

3. The distributed battery digital energy storage container according to claim 2, wherein a heat pump assembly (7) is arranged in the fire-fighting equipment chamber (1021), the heat pump assembly (7) is used for cooling the cooling liquid in the cooling liquid storage tank (5), and/or the heat pump assembly (7) is used for cooling the energy storage chamber (101) or the energy storage chamber (101) and the inversion chamber (1023) through a circulating pipeline (8) and an air outlet device (9).

4. A distributed battery digital energy storage container as claimed in claim 1, 2 or 3, wherein the energy storage chamber (101) comprises two independent chambers, namely a first chamber (10101) and a second chamber (10102), the first chamber (10101) and the second chamber (10102) are separated by a partition board, a plurality of energy storage battery assemblies (4) are arranged in the first chamber (10101) and the second chamber (10102), a first switch door assembly (2) is arranged in each chamber of the energy storage chamber (101), and the first switch door assembly (2) comprises two first door bodies (201) which are in opposite opening.

5. The distributed battery digital energy storage container according to claim 2, wherein a second switch door assembly (3) is arranged on the box body (1), the second switch door assembly (3) comprises two second door bodies which are in a split shape, a ventilation device (301) is arranged on the second door bodies, and the second switch door assembly (3) is used for opening and closing a fire-fighting equipment room (1021) or a fire-fighting equipment room (1021) and an inversion room (1023).

6. The distributed battery digital energy storage container according to claim 1, 2, 3 or 5, wherein the battery rack (401) comprises a plurality of laminated frames, each laminated frame comprises four laminated columns (4011), the four laminated columns (4011) are enclosed at four azimuth angles of the supporting plate (402), the laminated columns (4011) in two upper and lower adjacent laminated frames are connected in a plugging manner, a plurality of battery modules (403) are arranged on each supporting plate (402), and a heat exchange device (16) is arranged above each battery module (403) on each laminated frame.

7. The distributed battery digital energy storage container according to claim 6, wherein the heat exchange device (16) comprises a heat exchange plate body (1601), a first installation part (1602) is arranged above the heat exchange plate body (1601), the first installation part (1602) is a baffle structure for forming a closed accommodating heat exchange assembly (1604) above the heat exchange plate body (1601), a liquid inlet pipeline (1605) and a liquid outlet pipeline (1606) are arranged on the first installation part (1602), the liquid inlet pipeline (1605) is communicated with a liquid inlet branch pipe (405), and the liquid outlet pipeline (1606) is communicated with a liquid outlet branch pipe (407); the heat exchange plate comprises a heat exchange plate body (1601), a second mounting part (1603) is arranged below the heat exchange plate body (1601), the second mounting part (1603) is a baffle plate structure formed in a closed shape below the heat exchange plate body (1601), a containing groove (1609) is formed between the first mounting part (1602) and the second mounting part (1603), the containing groove (1609) is formed on the periphery of the heat exchange plate body (1601), and an insulating tape (1610) is arranged inside the containing groove (1609).

8. The distributed battery digital energy storage container according to claim 7, wherein the heat exchange assembly (1604) comprises a plurality of heat exchange pipes (16041), the ends of two adjacent heat exchange pipes (16041) are connected through a heat exchange joint (16042), heat exchange cooling liquid flowing in through a liquid inlet pipe (1605) flows in an S shape in the heat exchange pipes (16041), heat exchange cooling liquid in the heat exchange pipes (16041) flows out through a liquid outlet pipe (1606) after heat exchange, and the liquid inlet pipe (1605) and the liquid outlet pipe (1606) are arranged on two opposite sides of the heat exchange assembly (1604).

9. The distributed battery digital energy storage container according to claim 8, wherein a liquid discharge pipe (1607) is disposed on the first mounting portion (1602), the liquid discharge pipe (1607) is disposed at a lowest position of a space containing the heat exchange assembly (1604) on the first mounting portion (1602), wherein the liquid discharge pipe (1607) is communicated with the liquid outlet branch pipe (406), or a bus plate (1611) is disposed on the second mounting portion (1603), the bus plate (1611) forms a sink (1612) with an outer side wall of the second mounting portion (1603) and an outer side wall of the insulating tape (1610), the liquid discharge pipe (1607) is communicated with the sink (1612), and a dehumidification bag is disposed in the sink (1612).

10. The distributed battery digital energy storage container according to claim 8 or 9, characterized in that a positioning slot (16043) is formed between two adjacent heat exchange joints (16042) on the same side of the heat exchange tube (16041), and a limiting block (1608) is arranged in the positioning slot (16043).