Multi-cabin energy storage device

Abstract

The utility model discloses a multi-cabin energy storage device which accommodates a control unit and at least two battery modules, independent heat dissipation spaces are respectively arranged in a plurality of battery modules, an air outlet of a heat dissipation device is respectively corresponding to one heat dissipation space, heat dissipation and cooling are carried out on battery units in the battery modules, and effective temperature control is realized; and a plurality of heat insulation structures are arranged to isolate the battery modules from the control unit, so that heat exchange between the control unit and the battery units is avoided, and the safety of the control unit and the cooling efficiency are ensured. According to the utility model, the system safety is improved, the loading capacity of the battery unit is increased, and the space utilization rate of the energy storage device is improved. According to the utility model, more battery units are loaded in a limited space of the energy storage device, effective temperature control is realized, and the energy storage device which is safe, reliable, reasonable in layout and compact in structure is provided.

Description

Technical Field

[0001] The utility model relates to the field of energy storage devices, in particular to a multi-compartment energy storage device. Background Art

[0002] At present, the battery capacity stored in small energy storage devices is limited. When a large number of battery units or battery packs are placed, it will cause overcrowded space, poor heat dissipation, too high battery temperature, and great potential safety hazards.

[0003] Currently, the general small energy storage devices are generally divided into two compartments of different sizes on the left and right. One large compartment is used to place battery units, and the other small compartment is used to place control units; however, this layout of placing battery units in one half of the cabinet and control units in the other half of the cabinet will cause waste of the space of the energy storage device, and then cause the problem of limited single-cabinet energy storage capacity of the energy storage device. Users usually need to purchase multiple energy storage single cabinets, which will increase the usage cost.

[0004] Therefore, there is an urgent need to propose a multi-compartment energy storage device to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a multi-compartment energy storage device, which can solve the problem of how to ensure the effective temperature control and safe operation of battery units while effectively increasing the space utilization rate of the battery of the energy storage device.

[0006] To solve the above technical problems, the utility model provides a multi-compartment energy storage device, including:

[0007] A box body, which houses a control unit and at least two battery modules; a plurality of heat insulation structures are arranged inside the box body for isolating the battery modules and the control unit;

[0008] A first heat insulation board is arranged between the battery modules. Each battery module includes at least two battery compartments arranged back to back. The battery compartments are used to house battery units. A plurality of heat dissipation spaces are formed by enclosing the back of the battery compartments, the heat insulation structures, the box body and the first heat insulation board;

[0009] A heat dissipation device, which is arranged on one side of the box body for dissipating heat and cooling each heat dissipation space.

[0010] Optionally, the plurality of battery modules include a first battery module and a second battery module arranged adjacent to each other, and the first battery module is arranged on the side close to the heat dissipation device, and the second battery module is arranged on the side far from the heat dissipation device.

[0011] Optionally, an isolation space is provided below the second battery module for accommodating the control unit. The isolation space has at least two ventilation windows disposed opposite to each other, and the ventilation windows are respectively disposed on the side plates of the box adjacent to the front of the battery compartment.

[0012] Optionally, the heat insulation structure includes a second heat insulation plate, and the second heat insulation plate is disposed between the second battery module and the isolation space.

[0013] Optionally, the heat insulation structure further includes heat insulation boxes. One heat insulation box is disposed between each battery cell in the second battery module and the isolation space, and the heat insulation boxes are located above the second heat insulation plate.

[0014] Optionally, the heat insulation structure further includes at least two heat insulation compartments, and the heat insulation compartments are disposed between the first battery module and the second battery module.

[0015] Optionally, the back of the battery compartment of the first battery module, the box body, the two heat insulation compartments, and the first heat insulation plate enclose a first heat dissipation space of the first battery module; the back of the battery compartment of the second battery module, the two heat insulation compartments, the box body, the first heat insulation plate, and the second heat insulation plate enclose a second heat dissipation space of the second battery module.

[0016] Optionally, the heat dissipation device includes an air conditioner and an air duct, and at least two air outlets are provided in the air duct, and the air outlets respectively face the heat dissipation space;

[0017] An opening for accommodating one of the air outlets is provided on the first heat insulation plate.

[0018] Optionally, a plurality of heat dissipation holes are uniformly provided on the back of the battery cell.

[0019] Optionally, a fire control system is further included, and the fire control system includes a fire extinguishing unit and a fire pipeline; the fire extinguishing unit is placed at the bottom of the heat dissipation space, and the fire pipeline passes through each battery cell in sequence.

[0020] By the above technical solutions, the utility model has the following beneficial effects:

[0021] The utility model discloses a multi-compartment energy storage device, which houses a control unit and at least two battery modules. By respectively arranging independent heat dissipation spaces in a plurality of battery modules, and the air outlets of the heat dissipation devices respectively correspond to one heat dissipation space, the battery cells in the battery module are cooled to achieve effective temperature control and safe operation. Also, by arranging a plurality of heat insulation structures to isolate each battery module and the control unit, heat exchange between the control unit and the battery cells is avoided, ensuring the safety of the control unit and the efficiency of temperature reduction. While improving the system safety, the utility model increases the loading capacity of the battery cells, improves the battery space utilization rate of the energy storage device, loads more battery cells in a limited space, and achieves effective temperature control. The utility model provides an energy storage device that is safe, reliable, reasonable in layout and compact in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the multi-compartment energy storage device in the embodiment of the utility model Figure 1 ;

[0023] Figure 2 is a schematic structural diagram of the multi-compartment energy storage device in the embodiment of the utility model Figure 2 ;

[0024] Figure 3 is a schematic structural diagram of the multi-compartment energy storage device in the embodiment of the utility model Figure 3 ;

[0025] Figure 4 is a top view of the air duct in the embodiment of the utility model;

[0026] Figure 5 is a three-dimensional structural schematic diagram of the air duct in the embodiment of the utility model.

[0027] In the figure, 1, box body; 11, first battery compartment; 12, second battery compartment; 13, third battery compartment; 14, fourth battery compartment; 15, box door; 2, isolation space; 21, first heat insulation board; 22, second heat insulation board; 23, first heat insulation room; 24, second heat insulation room; 25, heat insulation box; 26, ventilation window; 31, air conditioner; 32, air duct; 321, first air outlet; 322, second air outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will describe the present utility model in conjunction with the schematic diagrams, which show the preferred embodiments of the present utility model. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.

[0029] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the drawings. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0032] As Figure 1 - Figure 3 shown, an embodiment of the present utility model provides a multi-compartment energy storage device, comprising:

[0033] A box body 1, which houses a control unit and at least two battery modules; a plurality of heat insulation structures are arranged inside the box body 1 for insulating the battery modules and the control unit; a first heat insulation plate 21 is arranged between the battery modules, and each battery module includes at least two battery compartments arranged back to back, the battery compartments are used to house battery cells, and a plurality of heat dissipation spaces are formed by enclosing the back of the battery compartments, the heat insulation structures, the box body 1 and the first heat insulation plate 21.

[0034] A heat dissipation device, which is arranged on one side of the box body 1 and is used to dissipate heat from each of the heat dissipation spaces.

[0035] In this embodiment, the box body 1 can accommodate a control unit and at least two battery modules, enabling more battery cells to be loaded in a limited space, optimizing the space layout, and avoiding space waste. A plurality of heat insulation structures are arranged inside the box body 1 to isolate the battery modules and the control unit, preventing the heat emitted by the battery cells from affecting the normal operation of the control unit. The heat dissipation device is used to dissipate heat from each independent heat dissipation space, ensuring effective temperature control while avoiding heat exchange between the control unit and the battery cells. The multi-compartment energy storage device provided in this embodiment is safe, reliable, reasonable in layout, and compact in structure.

[0036] Furthermore, a box door 15 is provided on the box body 1 corresponding to the front of each battery cell, facilitating the installation and disassembly of each battery cell.

[0037] Furthermore, the plurality of battery modules include a first battery module and a second battery module arranged adjacent to each other, and the first battery module is arranged on the side close to the heat dissipation device, while the second battery module is arranged on the side far from the heat dissipation device.

[0038] A separation space 2 is provided below the second battery module. The separation space 2 is used to accommodate the control unit. The separation space has at least two ventilation windows 26 arranged opposite to each other, and the ventilation windows 26 are respectively arranged on the side plates of the box body 1 adjacent to the front of the battery compartment.

[0039] The separation space 2 forms air convection through the relatively arranged ventilation windows 26 for natural air cooling.

[0040] In this embodiment, the first battery module includes a first battery compartment 11 and a second battery compartment 12 arranged back to back; the second battery module includes a third battery compartment 13 and a fourth battery compartment 14 arranged back to back.

[0041] Specifically, the two ventilation windows 26 are respectively arranged on the side plates of the box body 1 adjacent to the third battery compartment 13 and the fourth battery compartment 14. The separation space 2 performs natural air cooling through the relatively arranged ventilation windows 26. Due to the functions of the isolation structures in this embodiment, the separation space 2 is relatively isolated from each battery module. Therefore, the separation space 2 is not cooled by the heat dissipation device, ensuring the effective temperature control of each heat dissipation space by the heat dissipation device.

[0042] In this embodiment, the heat dissipation device includes an air conditioner 31 and an air duct 32. The box body 1 on the side of the first battery module close to the heat dissipation device has good heat dissipation effect. Among them, in the horizontal direction, the first battery compartment 11 and the second battery compartment 12 of the first battery module are respectively located on both sides of the air duct 32.

[0043] Further, in this embodiment, a plurality of heat insulation structures are provided between the isolation space 2 for accommodating the control unit and each battery module, to avoid heat exchange between the control unit and the battery unit, prevent the heat dissipated by the battery unit from affecting the control unit, and when using a heat dissipation device to control the temperature of the battery unit, the heat insulation mechanism is also conducive to the diffusion of cold air, which is more conducive to temperature control.

[0044] Specifically, the heat insulation structure includes a second heat insulation plate 22, and the second heat insulation plate 22 is disposed between the second battery module and the isolation space 2.

[0045] In this embodiment, the second heat insulation plate 22 is used to isolate the second battery module and the isolation space 2; in other examples, the second heat insulation plate 22 may also be only disposed between the isolation space 2 and the second heat dissipation space of the second battery module, and the second heat insulation plate 22 does not contact each battery unit in the second battery module, to prevent the heat dissipated by the battery unit from diffusing through the second heat insulation plate 22, and the isolation between each battery unit and the isolation space 2 is achieved through the heat insulation box 25.

[0046] Further, the heat insulation structure further includes a heat insulation box 25, and a heat insulation box 25 is provided between the lowermost battery unit in the second battery module and the isolation space 2 respectively, and the size of the heat insulation box 25 is the same as that of the battery unit.

[0047] The heat insulation box 25 is located above the second heat insulation plate 22; in other examples, the heat insulation box 25 realizes the isolation between the battery unit and the isolation space 2, and the second heat insulation plate 22 is used to realize the isolation between the second heat dissipation space and the isolation space 2.

[0048] Further, the heat insulation structure further includes at least two heat insulation intervals, namely a first heat insulation interval 23 and a second heat insulation interval 24.

[0049] The first heat insulation interval 23 and the second heat insulation interval 24 are disposed between the first battery module and the second battery module.

[0050] In this embodiment, please continue to refer to Figure 1 , the first heat insulation interval 23 is disposed between the first battery compartment 11 and the third battery compartment 13, and the second heat insulation interval 24 is disposed between the second battery compartment 12 and the fourth battery compartment 14.

[0051] The heat insulation interval is used to isolate the contact between the isolation space 2 and the first battery compartment 11 and the second battery compartment 12, and also isolates the contact between adjacent battery compartments, to prevent the battery units from approaching and affecting heat dissipation.

[0052] Further, the back of the first battery compartment 11 and the second battery compartment 12, the box body 1, the two heat insulation compartments, and the first heat insulation plate 21 enclose the first heat dissipation space of the first battery module.

[0053] In this embodiment, the back of the first battery compartment 11 and the second battery compartment 12, the box body 1, the side plates of the two heat insulation compartments, and the first heat insulation plate 21 enclose the first heat dissipation space of the first battery module.

[0054] The back of the third battery compartment 13 and the fourth battery compartment 14, the two heat insulation compartments, the box body 1, the first heat insulation plate 21, and the second heat insulation plate 22 enclose the second heat dissipation space of the second battery module.

[0055] In this embodiment, the first heat insulation compartment 23 and the second heat insulation compartment 24 are respectively arranged on both sides of the second heat dissipation space in the horizontal direction; that is, the back of the third battery compartment 13 and the fourth battery compartment 14, the side plates of the two heat insulation compartments, the box body 1, the first heat insulation plate 21, and the second heat insulation plate 22 enclose the second heat dissipation space of the second battery module.

[0056] Further, please refer to Figure 4 - Figure 5 , the air duct 32 includes at least two air outlets, and each air outlet is respectively oriented towards the heat dissipation space.

[0057] The air outlets include a first air outlet 321 and a second air outlet 322; wherein, the first air outlet 321 of the air duct 32 cools the first heat dissipation space, the second air outlet 322 of the air duct 32 cools the second heat dissipation space, and an opening for accommodating the second air outlet 322 is provided on the first heat insulation plate 21.

[0058] Further, a plurality of heat dissipation holes are uniformly arranged on the back of each battery unit, for allowing the cold air of the heat dissipation device to enter the interior of each battery unit for heat dissipation.

[0059] In a specific example, the control part includes: a transformer, an EMS energy management system, a PCS module of an energy storage inverter, an isolation transformer, a DC / DC module, and a human-machine interface.

[0060] Among them, the transformer, the EMS energy management system, the PCS module of the energy storage inverter, the isolation transformer, and the DC / DC module are arranged in the isolation space 2, and the human-machine interface is arranged on the corresponding side door 15 of the isolation space 2.

[0061] Furthermore, it further includes a fire control system, and the fire control system includes a fire extinguishing unit and a fire pipeline; the fire extinguishing unit is placed at the bottom of the heat dissipation space, and the fire pipeline passes through each of the battery units in sequence.

[0062] Preferably, the fire extinguishing unit includes a fire tank, and preferably, the fire tank is placed at the bottom of the first heat dissipation space.

[0063] In addition, a third heat insulation space is formed at the top of the first battery module, and the air duct 32 is arranged in the third heat insulation space. There is no cold air passing through this space, reducing the heat dissipation area of the heat dissipation device and improving the heat dissipation efficiency.

[0064] In summary, a multi-compartment energy storage device proposed by the present utility model designs independent heat dissipation spaces in multiple battery modules. The heat dissipation device is provided with multiple air outlets, and each air outlet corresponds to a heat dissipation space, only cooling the battery units in this battery module to ensure effective temperature control of the battery units; by setting multiple heat insulation structures, isolating each battery module and the control unit, avoiding heat exchange between the control unit and the battery units, ensuring the safety of the control unit and the cooling efficiency. The multi-compartment energy storage device provided by the present utility model effectively increases the battery space utilization rate of the energy storage device while ensuring effective temperature control and safe operation of the battery units; while improving the safety of the system, it increases the loading capacity of the battery units and improves the space utilization rate of the energy storage device.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A multi-compartment energy storage device, characterized in that: include: A box body, accommodating a control unit and at least two battery modules; A plurality of heat-insulating structures are arranged inside the box body to isolate the battery module and the control unit; A first heat insulation board is arranged between the battery modules, each of the battery modules comprises at least two battery compartments arranged back to back, the battery compartments are used to accommodate battery cells, and the backs of the battery compartments, the heat insulation structure, the box body and the first heat insulation board enclose a plurality of heat dissipation spaces; A heat dissipation device is arranged on one side of the box body and is used to dissipate heat and cool each of the heat dissipation spaces.

2. The multi-compartment energy storage device according to claim 1, characterized in that: The plurality of battery modules include a first battery module and a second battery module that are adjacently arranged, wherein the first battery module is arranged at a side close to the heat dissipation device, and the second battery module is arranged at a side away from the heat dissipation device.

3. The multi-compartment energy storage device according to claim 2, characterized in that: An isolation space is provided below the second battery module for accommodating the control unit. The isolation space has at least two ventilation windows which are arranged opposite to each other. The ventilation windows are respectively arranged on the side panels of the box body adjacent to the front side of the battery compartment.

4. The multi-compartment energy storage device according to claim 3, characterized in that: The heat insulation structure includes a second heat insulation board, and the second heat insulation board is arranged between the second battery module and the isolation space.

5. The multi-compartment energy storage device according to claim 4, characterized in that: The thermal insulation structure further includes a thermal insulation box, and a thermal insulation box is arranged between each battery unit in the second battery module and the isolation space, and the thermal insulation box is located above the second thermal insulation board.

6. The multi-compartment energy storage device according to claim 5, characterized in that: The thermal insulation structure further includes at least two thermal insulation rooms, and the thermal insulation rooms are arranged between the first battery module and the second battery module.

7. The multi-compartment energy storage device according to claim 6, characterized in that: The back of the battery compartment of the first battery module, the box, the two insulation rooms and the first insulation board form a first heat dissipation space of the first battery module; the back of the battery compartment of the second battery module, the two insulation rooms, the box, the first insulation board and the second insulation board form a second heat dissipation space of the second battery module.

8. The multi-compartment energy storage device according to claim 1, characterized in that: The heat dissipation device comprises an air conditioner and an air duct, wherein the air duct is provided with at least two air outlets, and the air outlets are respectively oriented toward the heat dissipation space; The first heat insulation board is provided with an opening for accommodating the air outlet.

9. The multi-compartment energy storage device according to claim 1, characterized in that: A plurality of heat dissipation holes are evenly arranged on the back of the battery unit.

10. The multi-compartment energy storage device according to claim 1, characterized in that: It also includes a fire control system, which includes a fire extinguishing unit and a fire pipeline; the fire extinguishing unit is placed at the bottom of the heat dissipation space, and the fire pipeline passes through each of the battery units in sequence.

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