CN115528369A - Energy storage device - Google Patents
Energy storage device Download PDFInfo
- Publication number
- CN115528369A CN115528369A CN202211215296.XA CN202211215296A CN115528369A CN 115528369 A CN115528369 A CN 115528369A CN 202211215296 A CN202211215296 A CN 202211215296A CN 115528369 A CN115528369 A CN 115528369A
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- energy storage
- frame
- storage device
- battery module
- battery modules
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- 238000004146 energy storage Methods 0.000 title claims abstract description 90
- 125000006850 spacer group Chemical group 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 description 11
- 238000005192 partition Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses an energy storage device. The energy storage device includes: a base; the battery modules are arranged above the base and comprise electric core groups and frame components for accommodating the electric core groups, and two frame components of two adjacent battery modules are connected with each other; the plurality of battery modules are stacked in at least one of a vertical direction and a lateral direction of the energy storage device. Among the above-mentioned energy storage equipment, a plurality of battery modules pile up the setting along at least one orientation in energy storage equipment's the vertical direction and the transverse direction, and two adjacent battery modules connect each other through two frame components, directly pile up the mode through each other of battery module promptly and constitute energy storage equipment, realize energy storage equipment's simple structure compactness, cost are lower, energy density is high.
Description
Technical Field
The invention relates to the technical field of energy storage, in particular to energy storage equipment.
Background
At present, lithium battery energy storage system includes cluster frame and a plurality of battery module, and a plurality of battery module are fixed on the cluster frame, and a plurality of battery module establish ties on the cluster frame to constitute the battery cluster, and then a plurality of battery clusters establish ties and constitute a big lithium battery energy storage system. However, this results in a high cost of the energy storage system, a complex system structure, and a low energy density.
Disclosure of Invention
The embodiment of the invention provides energy storage equipment.
An energy storage device of an embodiment of the present invention includes:
a base;
the battery modules are arranged above the base and comprise electric core groups and frame components for accommodating the electric core groups, and two frame components of two adjacent battery modules are connected with each other; the plurality of battery modules are stacked in at least one of a vertical direction and a lateral direction of the energy storage device.
Among the above-mentioned energy storage equipment, a plurality of battery modules pile up the setting along at least one orientation in energy storage equipment's the vertical direction and the horizontal direction, and two adjacent battery modules connect each other through two frame subassemblies, directly pile up the mode through each other of battery module promptly and constitute energy storage equipment, realize that energy storage equipment's simple structure is compact, the cost is lower, energy density is high.
In some embodiments, the frame assembly includes upper and lower frames distributed at both sides of the battery module in the vertical direction:
the upper frame is provided with an upper connecting part; the lower frame is provided with a lower connecting part;
along energy storage equipment's vertical direction, adjacent two battery module is through one of them battery module go up connecting portion and another battery module lower connecting portion fixed connection.
So, can carry out fixed connection to two adjacent battery module along energy storage equipment vertical direction through last connecting portion and lower connecting portion.
In some embodiments, the frame assembly includes a front frame and a rear frame distributed at both sides of the battery module in an extension direction of the battery module;
the front frame and the rear frame are respectively provided with a left connecting piece and a right connecting piece along the two sides of the transverse direction;
along energy storage equipment's horizontal direction, adjacent two battery module passes through one of them battery module the left connecting piece with another battery module the right connecting piece fixed connection.
So, can carry out fixed connection to two adjacent battery module at energy storage equipment transverse direction through left connecting piece and right connecting piece.
In some embodiments, two adjacent battery modules are separated by a preset distance through the left and right connection members in a lateral direction of the energy storage device.
So, can guarantee to be formed with heat dissipation channel between two adjacent battery module on energy storage equipment transverse direction.
In some embodiments, the left connector and the right connector each comprise:
a mounting part connected to the front frame or the rear frame;
the spacing part comprises a first end and a second end which are opposite to each other along the transverse direction, and the first end is connected with the mounting part;
the connecting portion are connected the second end is followed transverse direction, adjacent two the battery module is through one of them the battery module the connecting portion of left side connecting piece and another the battery module the connecting portion fixed connection of right side connecting piece, and through the spacer portion of left side connecting piece with the spacer portion of right side connecting piece separates preset distance.
So, can realize controlling two battery module fixed connection and keeping apart preset distance.
In some embodiments, the left and right connectors are located at a position where the front frame or the rear frame intersects the upper frame.
So, can make things convenient for the connection of left connecting piece and right connecting piece.
In some embodiments, a bottom air duct is disposed in the base, an air inlet is disposed at the bottom of each frame assembly, an air outlet is disposed at the top of each frame assembly, the bottom air duct is communicated with the air inlet of the lowermost frame assembly along the vertical direction of the energy storage device, and the air outlet of the frame assembly located below along the vertical direction in two adjacent frame assemblies is communicated with the air inlet of the frame assembly located above.
So, can dispel the heat to the battery module, guarantee that the battery module work is at normal temperature range.
In certain embodiments, the energy storage device comprises: and the air blowing system is communicated with the bottom air channel and inputs air to the bottom air channel.
Therefore, the heat dissipation efficiency of the battery module can be improved.
In some embodiments, the energy storage device comprises: and the air exhaust system is communicated with the air outlet of the uppermost frame assembly along the vertical direction and is used for sucking air.
Therefore, the heat dissipation efficiency of the battery module is improved.
In certain embodiments, the energy storage device further comprises:
the battery module comprises a box body, wherein a first cavity and a second cavity which are adjacently arranged side by side along the horizontal direction are arranged in the box body, and the base and the plurality of battery modules are positioned in the first cavity;
a fire fighting system located in the second chamber;
and the control system is positioned in the second chamber and is electrically connected with the plurality of battery modules.
In this way, it is possible to protect the battery module and to separate the battery module from other systems.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is also possible for those skilled in the art to obtain other drawings based on the structures shown in the drawings without creative efforts.
FIG. 1 is a perspective view of an energy storage device according to an embodiment of the present invention;
FIG. 2 is a front view of an energy storage device according to an embodiment of the present invention;
FIG. 3 is a right side view of an energy storage device according to an embodiment of the present invention;
FIG. 4 is a top view of an energy storage device according to an embodiment of the present invention;
FIG. 5 is another perspective view of an energy storage device according to an embodiment of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
FIG. 7 is a schematic airflow diagram of an energy storage device according to an embodiment of the present invention;
FIG. 8 is another schematic airflow diagram of an energy storage device according to an embodiment of the invention;
FIG. 9 is another top view of an energy storage device according to an embodiment of the present invention;
FIG. 10 is a schematic illustration of a further airflow flow of an energy storage device in accordance with an embodiment of the present invention;
fig. 11 is a perspective view of a battery module according to an embodiment of the present invention;
fig. 12 is a front view of a battery module according to an embodiment of the present invention;
fig. 13 is a plan view of a battery module according to an embodiment of the present invention.
Description of reference numerals:
energy storage device-100, base-12, cell pack-14, battery module-16, frame assembly-18, upper frame-22, lower frame-24, left frame-26, right frame-28, front frame-30, rear frame-32, terminal-34, left side plate-36, right side plate-38, upper left connecting rod-40, upper right connecting rod-42, upper mounting hole-44, lower left connecting rod-46, lower right connecting rod-48, lower mounting hole-50, left connecting member-52, right connecting member-54, front left connecting rod-56, left mounting hole-58, front right connecting rod-60, rear right connecting rod-62, right mounting hole-64, heat dissipation channel-66, spacer-door opening-68, connecting member-70, mounting member-72, bottom duct-74, air inlet-75, air outlet-76, spacer-78, blower system-80, air inlet-82, air outlet-84, air exhaust system-86, exhaust duct-88, box-90, fire protection system-92, control system-94, first chamber-96, second chamber-98, second chamber-97-95, second chamber-95, and second chamber.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise specifically stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1, 10 and 11, an energy storage device 100 according to an embodiment of the invention includes a base 12 and a plurality of battery modules 16, wherein the plurality of battery modules 16 are disposed above the base 12. The battery modules 16 include the electric core pack 14 and the frame assembly 18 accommodating the electric core pack 14, two frame assemblies 18 of adjacent two battery modules 16 are connected to each other, and a plurality of battery modules 16 are stacked in at least one of the vertical direction and the lateral direction of the energy storage device 100.
In the energy storage device 100, the plurality of battery modules 16 are stacked in at least one of the vertical direction and the transverse direction of the energy storage device 100, and two adjacent battery modules 16 are connected to each other through the two frame assemblies 18, that is, the energy storage device 100 is formed by the mutual direct stacking manner of the battery modules 16, so that the energy storage device 100 has the advantages of simple and compact structure, low cost and high energy density.
In the embodiment shown in fig. 1, a plurality of battery modules 16 are stacked above the base 12 in the vertical and lateral directions of the energy storage device 100. Specifically, several battery modules 16 are directly stacked in a battery module row in order from the base 12 upward in the vertical direction of the energy storage device 100. In the battery module row, two adjacent battery modules 16 are fixedly connected to each other by two frame members 18. The frame assembly 18 of the lowermost battery module 16 is fixedly coupled to the base 12. The vertical direction of the energy storage device 100 may be the up-down direction, and the lateral direction may be the left-right direction, or the front-back direction, or both the left-right direction and the front-back direction.
Each battery module 16 includes a battery cell pack 14, and a mounting space is provided in the frame assembly 18, and the battery cell pack 14 is mounted in the mounting space. The battery pack 14 may include a plurality of battery cells electrically connected in series, parallel, or series-parallel.
Referring to fig. 11, the frame assembly 18 may include an upper frame 22, a lower frame 24, a left frame 26, a right frame 28, a front frame 30, and a rear frame 32. The front frame 30 and the rear frame 32 connect the front end of the upper frame 22 and the rear end of the lower frame 24, the front end of the left frame 26, and the rear end of the right frame 28, respectively.
The lower frame 24 is further provided with a fixing rod (not shown), and the plurality of battery cells are arranged along the extending direction (length direction) of the battery module 16 and fixedly connected together through a fixing plate (not shown) at the bottom. The fixing plate can be fixed on the fixing rod in a bolt fixing mode. Therefore, the plurality of battery cells can be stably installed. The extending direction of the battery module 16 may be in the illustrated front-rear direction.
The electrodes of the multiple cells may be electrically connected at the top of the battery module 16 by an aluminum row. The front frame 30 is further provided with two terminals 34, one terminal 34 is electrically connected to one end of a circuit formed by connecting a plurality of battery cells in series, parallel or series-parallel, and the other terminal 34 is electrically connected to the other end of the circuit formed by connecting a plurality of battery cells in series, parallel or series-parallel. The left frame 26 is provided with a left side plate 36 (see fig. 6), the right frame 28 is provided with a right side plate 38 (see fig. 11), and the left and right side plates 38 can protect the battery 20 from being damaged.
In some embodiments, the frame assembly 18 includes an upper frame 22 and a lower frame 24 that are distributed on both sides of the battery module 16 in the vertical direction of the energy storage device 100, and the upper frame 22 is provided with an upper connection portion. The lower frame 24 is provided with a lower coupling portion. In the vertical direction of the energy storage device 100, two adjacent battery modules 16 are fixedly connected by the upper connecting portion of one of the battery modules 16 and the lower connecting portion of the other battery module 16. In this way, two adjacent battery modules 16 in the vertical direction of the energy storage device 100 can be fixedly connected by the upper connection portion and the lower connection portion.
Specifically, in the embodiment shown in fig. 11, the upper frame 22 includes an upper left connecting rod 40 and an upper right connecting rod 42, the upper connecting portion may include upper mounting holes 44 opened on the upper left connecting rod 40 and the upper right connecting rod 42, the upper connecting portion may include a plurality of upper mounting holes 44, and the plurality of upper mounting holes 44 are respectively disposed near four corner positions of the upper frame 22.
The lower frame 24 includes a lower left connecting rod 46 (see fig. 6) and a lower right connecting rod 48, and the lower connecting portion may include a lower mounting hole 50 opened on the lower left connecting rod 46 and the lower right connecting rod 48. The lower coupling portion may include a plurality of lower mounting holes 50, and the plurality of lower mounting holes 50 are respectively disposed near four corner positions of the lower frame 24. In the two battery modules 16 stacked adjacent to each other in the vertical direction of the energy storage device 100, the upper mounting hole 44 of the lower frame assembly 18 is aligned with the lower mounting hole 50 of the upper frame assembly 18, and the lower and upper battery modules 16 are fixed by passing a bolt through the lower and upper mounting holes 50 and 44 and connecting the bolt with a nut.
When the upper and lower battery modules 16 are stacked together, the upper and lower left connecting bars 40 and 46 are stacked together, and the upper and lower right connecting bars 42 and 48 are stacked together. The lowermost battery module 16 may be fixedly coupled to the base 12 by a lower left coupling bar 46 and a lower right coupling bar 48.
It is understood that in other embodiments, the upper frame 22 and the lower frame 24 are not limited to the connection by bolts and nuts, but may be welded connection or other connection methods, for example, the upper connection portion and the lower connection portion may be connection portions formed by welding.
In some embodiments, referring to fig. 13, the frame assembly 18 includes a front frame 30 and a rear frame 32 distributed on both sides of the battery module 16 in the extending direction of the battery module 16. The front frame 30 and the rear frame 32 are respectively provided with a left connecting piece 52 and a right connecting piece 54 on both sides in the transverse direction of the energy storage device 100;
in the transverse direction of the energy storage device 100, two adjacent battery modules 16 are fixedly connected with the right connecting member 54 of one battery module 16 through the left connecting member 52 of the other battery module. In this manner, two adjacent battery modules 16 in the lateral direction of the energy storage device 100 can be fixedly connected by the left and right connection members 52 and 54.
Specifically, in the embodiment shown in fig. 11, the front frame 30 includes a front left connecting rod 56 and a front right connecting rod 60, the left connecting member 52 may be protruded on the front left connecting rod 56, the right connecting member 54 may be protruded on the front right connecting rod 60, and the left connecting member 52 may be opened with a left mounting hole 58. The rear frame 32 includes a rear left connecting rod (not shown) and a rear right connecting rod 62, the right connecting member 54 can be protrudingly disposed on the rear right connecting rod 62, the left connecting member 52 can be protrudingly disposed on the rear left connecting rod, and the right connecting member 54 can be provided with a right mounting hole 64. In the two battery modules 16 stacked adjacent to each other in the transverse direction of the energy storage device 100, the right mounting hole 64 of the frame assembly 18 on the left side is aligned with the left mounting hole 58 of the frame assembly 18 on the right side, and the left and right battery modules 16 may be fixed by penetrating the left and right mounting holes 58 and 64 with bolts and connecting the bolts with nuts.
It is understood that in other embodiments, the left frame 26 and the right frame 28 are not limited to being connected by bolts and nuts, but may be welded or connected by other means, for example, the left connecting member 52 and the right connecting member 54 may be connected by welding. In other embodiments, the left connector 52 may be part of the front frame 30 and the right connector 54 may be part of the rear frame 32.
In some embodiments, adjacent two battery modules 16 are spaced apart by a predetermined distance by the left and right connection members 52 and 54 in the lateral direction of the energy storage device 100. In this way, it is ensured that the heat dissipation channel 66 is formed between two adjacent battery modules 16 in the lateral direction of the energy storage device 100.
Specifically, along energy storage device 100's transverse direction, the left side of frame 30 and the left side of back frame 32 are protruding to be established at left side of preceding frame 30 to left side connecting piece 52, right connecting piece 54 is protruding to be established at the right side of preceding frame 30 and the right side of back frame 32, when controlling two battery module 16 and piling up, connect through left connecting piece 52 and right connecting piece 54, protruding left connecting piece 52 and right connecting piece 54 of establishing can make and separate preset distance between two battery module 16 about, and then be formed with heat dissipation channel 66 between two battery module 16 about, guarantee that battery module 16 works at normal temperature range.
The specific value of the preset distance may be determined according to the heat dissipation requirement, the size requirement of the energy storage device 100, and other factors, and is not specifically limited herein.
In some embodiments, referring to fig. 12, each of the left and right connectors 52, 54 includes a mounting portion 72, a spacer portion 68, and a connecting portion 70. The mounting portion 72 is connected to the front frame 30 or the rear frame 32.
The spacer 68 includes first and second ends that are opposite in the lateral direction of the energy storage device 100, and the first end is connected to the mounting portion 72. The connection portion 70 is connected to the second end, and two adjacent battery modules 16 are fixedly connected to the connection portion 70 of the right connection member 54 of one battery module 16 through the connection portion 70 of the left connection member 52 of the other battery module 16 and are spaced apart from the connection portion 70 of the right connection member 54 by a predetermined distance through the spacer portion 68 of the left connection member 52 in the transverse direction of the energy storage device 100. Thus, the left and right battery modules 16 can be fixedly connected and separated by a predetermined distance.
Specifically, the connection part 70 of the right connector 54 of the left battery module 16 is connected with the connection part 70 of the left connector 52 of the right battery module 16. For example, the right mounting hole 64 is formed on the connecting portion 70 of the right connecting member 54, the left mounting hole 58 is formed on the connecting portion 70 of the left connecting member 52, and when the left and right battery modules 16 are stacked together, the right mounting hole 64 and the left mounting hole 58 are aligned, so that the left and right battery modules 16 can be fixed by using bolts to penetrate through the left and right mounting holes 58 and 64 and nuts to connect the bolts.
It is understood that in other embodiments, the connecting portion 70 of the right connecting member 54 and the connecting portion 70 of the left connecting member 52 may be connected by welding or other methods.
The partition 68 is protruded on both left and right sides of the front frame 30 and the rear frame 32, and a first end of the partition 68 is connected to the mounting part 72. The second end of the spacer 68 is remote from the front frame 30 or the rear frame 32. The connecting portion 70 connects the second end and forms an angle with the spacing portion 68 that is greater than 0 degrees and less than 180 degrees. In the embodiment shown in fig. 12, the partition portion 68 and the connection portion 70 are perpendicular, so that the connection area of the connection portion 70 on the right side of the front frame 30 of the left battery module 16 and the connection portion 70 on the left side of the front frame 30 of the right battery module 16 can be made larger, and the connection stability of the left and right battery modules 16 can be improved.
The mounting portion 72 forms an angle with the spacing portion 68 that is greater than 0 degrees and less than 180 degrees. In the embodiment shown in FIG. 12, the mounting portion 72 is perpendicular to the spacer portion 68, and the mounting portion 72 and the connecting portion 70 extend in opposite directions, e.g., the mounting portion 72 may extend downwardly from a first end of the spacer portion 68 and the connecting portion 70 may extend upwardly from a second end of the spacer portion 68.
The mounting portions 72 are coupled (e.g., welded) to the front and rear frames 30 and 32, and the left and right connecting members 52 and 54 may form a zigzag-like structure. The left connector 52 and the right connector 54 may be an integral structure or may be separate structures. For example, when the left connector 52 is an integral structure, the mounting portion 72, the spacer portion 68, and the connecting portion 70 may be formed by bending a plate-shaped sheet metal member. For another example, when the left connector 52 is a separate structure, the mounting portion 72 and the connecting portion 70 may be connected to the first end and the second end of the spacer portion 68, respectively, and the mounting portion 72 and the connecting portion 70 may extend in opposite directions.
In some embodiments, the left and right connectors 52, 54 are located where the front or rear frame 30, 32 intersects the upper frame 22. In this manner, the connection of the left and right connectors 52 and 54 can be facilitated.
Specifically, when two left and right battery modules 16 are stacked, the right connecting member 54 of the left battery module 16 is connected with the left connecting member 52 of the right battery module 16. The right connector 54 is located at a position where the front frame 30 or the rear frame 32 of the left battery module 16 intersects the upper frame 22, and the left connector 52 is located at a position where the front frame 30 or the rear frame 32 of the right battery module 16 intersects the upper frame 22. When the left and right battery modules 16 are stacked but not fixedly connected, the battery modules 16 are not typically stacked above the battery modules 16. At this time, a large operation space is provided above the left and right battery modules 16, and the connection between the right connecting member 54 and the left connecting member 52 is facilitated.
In the embodiment of fig. 12, the connection part 70 extends upward from the second end of the partition part 68, and the position of the connection part 70 is higher than that of the upper frame 22, thereby further improving the convenience of fixing and connecting the left and right battery modules 16.
In some embodiments, referring to fig. 10 and 11, a bottom air duct 74 is disposed in the base 12, an air inlet 75 is disposed at the bottom of the frame assembly 18, an air outlet 76 is disposed at the top of the frame assembly 18, the bottom air duct 74 communicates with the air inlet 75 of the lowermost frame assembly 18 along the vertical direction of the energy storage device 100, and the air outlet 76 of the frame assembly 18 located below along the vertical direction of the energy storage device 100 in two adjacent frame assemblies 18 communicates with the air inlet 75 of the frame assembly 18 located above. Therefore, the heat dissipation of the battery module 16 can be performed, and the battery module 16 can be ensured to work in a normal temperature range.
Specifically, the battery module 16 generates heat when operating, and the heat heats air to form hot air. For one battery module row, the hot air flows from bottom to top, negative pressure is formed in the bottom air duct 74, the cold air in the bottom air duct 74 can flow upward from the bottom air duct 74, and enters the interior of the battery module 16 through the air inlet 75 of the lowermost frame assembly 18, takes heat away from the battery module 16, flows out of the air outlet 76 at the top of the frame assembly 18, then enters the air inlet 75 of the frame assembly 18 of the upper battery module 16, and dissipates heat from the upper battery module 16 until flowing out of the air outlet 76 at the top of the frame assembly 18 of the uppermost battery module 16.
In one embodiment, the intake vent 75 may be an opening enclosed by the lower frame 24. The separator 78 is installed on the inner side of the upper frame 22, and the separator 78 can separate the electrodes and the aluminum bars on the top of the battery 20 to prevent accidents. The air outlet 76 may be open to a partition 78.
In some embodiments, referring to fig. 3-5, the energy storage device 100 includes a blower system 80, the blower system 80 communicating with the bottom duct 74 and supplying air to the bottom duct 74. Thus, the heat dissipation efficiency of the battery module 16 can be improved.
Specifically, the bottom duct 74 has an air inlet 82 at the rear and an air outlet 84 at the top.
In one embodiment, the blower system 80 may include a blower, and the airflow (with lower temperature) from the blower may enter the bottom duct 74 through the air inlet 82 and exit through the air outlet 84 and enter the interior of the lowermost battery module 16 through the air inlet 75 at the bottom of the frame assembly 18.
In one embodiment, the blower system 80 may include an air conditioning system, and the airflow (having a lower temperature) from the air conditioning system may enter the bottom duct 74 through the air inlet 82, exit the air outlet 84, and enter the interior of the lowermost battery module 16 through the air inlet 75 at the bottom of the frame assembly 18.
Therefore, through the air blowing system 80, the air flow speed for cooling the battery module 16 is increased, and the heat dissipation effect of the battery module 16 is improved.
Referring to fig. 7, 8 and 10, the solid arrows in these figures show the airflow direction of the airflow.
In some embodiments, referring to fig. 1-3, the energy storage device 100 includes a ventilation system 86, wherein the ventilation system 86 communicates with the air outlet 76 of the uppermost frame assembly 18 in a vertical direction of the energy storage device 100 and is used for sucking air. Thus, the heat dissipation efficiency of the battery module 16 is improved.
Specifically, in the embodiment shown in fig. 1, the air exhaust system 86 is mounted on the top of the uppermost battery module 16 in the vertical direction of the energy storage device 100. The exhaust system 86 may include an exhaust duct 88 and an exhaust fan (not shown) disposed in the exhaust duct 88, and the exhaust duct 88 may cover the top of the uppermost battery module 16 to cover all the air outlets 76 of the uppermost battery module 16. The exhaust fan during operation can make the inside air current of battery module 16 flow upwards with higher speed, and then the suction air has promoted the radiating efficiency of battery module 16.
In some embodiments, referring to fig. 1-3, the energy storage device 100 further includes a tank 90, a fire protection system 92, and a control system 94. The case 90 is provided with a first chamber 96 and a second chamber 98 which are adjacently arranged in parallel in the horizontal direction, and the base 12 and the plurality of battery modules 16 are located in the first chamber 96. The fire protection system 92 is located in the second chamber 98. The control system 94 is located in the second chamber 98, and the control system 94 is electrically connected to the plurality of battery modules 16. In this way, it is possible to protect the battery module 16 and to separate the battery module 16 from other systems.
Specifically, the control system 94 may include a high pressure box or control cabinet, and the fire protection system 92 may include a fire extinguisher, fire hydrant, or the like.
The battery module 16 is separated from the control system 94 and the fire protection system 92, so that on one hand, heat generated by the battery module 16 during operation does not affect the control system 94 and the fire protection system 92 or has little influence on the control system 94 and the fire protection system 92, and on the other hand, the battery module 16, the control system 94 and the fire protection system 92 are also conveniently maintained.
The battery module 16 is located in the first cavity 96, which can prevent the battery module 16 from being damaged by external objects and prevent the battery module 16 from causing accidents to people. The control system 94 and the fire protection system 92 may be mounted within the second chamber 98 by brackets.
In the embodiment shown in FIG. 3, the blower system 80 is located outside the cabinet 90, and the airflow from the blower system 80 may be delivered to the bottom duct 74 via a duct. The exhaust duct 88 passes through the top of the box body 90. The front side of the box 90 is further provided with a door 99, the front side of the box 90 is rotatably connected with a first door 97 and a second door 95, the first door 97 can open and close the door 99 corresponding to the first chamber 96, and the second door 95 can open and close the door 99 corresponding to the second chamber.
In the description of the present specification, reference to the description of "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" or the like 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An energy storage device, comprising:
a base;
the battery modules are arranged above the base and comprise electric core groups and frame assemblies for accommodating the electric core groups, and two frame assemblies of two adjacent battery modules are connected with each other; the plurality of battery modules are stacked in at least one of a vertical direction and a lateral direction of the energy storage device.
2. The energy storage device of claim 1, wherein the frame assembly comprises an upper frame and a lower frame distributed on both sides of the battery module in the vertical direction:
the upper frame is provided with an upper connecting part; the lower frame is provided with a lower connecting part;
along energy storage equipment's vertical direction, adjacent two battery module pass through one of them battery module go up connecting portion and another battery module the lower connecting portion fixed connection.
3. The energy storage device of claim 1, wherein the frame assembly comprises a front frame and a rear frame distributed on both sides of the battery module in an extending direction of the battery module;
the front frame and the rear frame are respectively provided with a left connecting piece and a right connecting piece along the two sides of the transverse direction;
along energy storage equipment's horizontal direction, adjacent two battery module passes through one of them battery module the left connecting piece with another battery module the right connecting piece fixed connection.
4. The energy storage device of claim 3, wherein adjacent two of the battery modules are separated by the left and right connection members by a preset distance in a lateral direction of the energy storage device.
5. The energy storage device of claim 4, wherein the left and right connections each comprise:
a mounting part connected to the front frame or the rear frame;
the spacing part comprises a first end and a second end which are opposite to each other along the transverse direction, and the first end is connected with the mounting part;
the connecting portion are connected the second end is followed transverse direction, adjacent two the battery module is through one of them the battery module the connecting portion of left side connecting piece and another the battery module the connecting portion fixed connection of right side connecting piece, and through the spacer portion of left side connecting piece with the spacer portion of right side connecting piece separates preset distance.
6. The energy storage device of any of claims 3-5, wherein the left and right connectors are located at a location where the front frame or the rear frame intersects the upper frame.
7. The energy storage device of claim 1, wherein a bottom air duct is disposed in the base, an air inlet is disposed at a bottom of the frame assembly, an air outlet is disposed at a top of the frame assembly, the bottom air duct communicates with the air inlet of the lowermost frame assembly along a vertical direction of the energy storage device, and the air outlet of the frame assembly located below along the vertical direction of the two adjacent frame assemblies communicates with the air inlet of the frame assembly located above.
8. The energy storage device of claim 7, wherein the energy storage device comprises:
and the air blowing system is communicated with the bottom air channel and inputs air to the bottom air channel.
9. Energy storage device according to claim 7 or 8, characterized in that it comprises:
and the air exhaust system is communicated with the air outlet of the uppermost frame assembly along the vertical direction and is used for sucking air.
10. The energy storage device of claim 1, further comprising:
the battery pack comprises a box body, a plurality of battery modules and a base, wherein a first cavity and a second cavity which are adjacently arranged side by side along the horizontal direction are arranged in the box body;
a fire protection system located in the second chamber;
and the control system is positioned in the second chamber and is electrically connected with the plurality of battery modules.
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| CN202211215296.XA CN115528369B (en) | 2022-09-30 | 2022-09-30 | Energy storage device |
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| CN115528369B (en) | 2024-01-23 |
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