CTP energy storage battery structure

Abstract

The utility model relates to the field of electrochemical energy storage, in particular to a CTP energy storage battery structure. The bottom plate is arranged, the side plates are arranged on the bottom plate, the partition plates are arranged between every two adjacent side plates, the partition plates are arranged in the extending direction of the side plates, and a plurality of small compartments, namely containing spaces, with openings in the tops can be formed. The copper bar assembly arranged on the bottom plate can electrically connect the positive and negative electrodes of the plurality of battery cells, so that a series or parallel circuit is formed among the plurality of battery cells, and meanwhile, the copper bars can also play a role in supporting the battery cells. Furthermore, the partition plate is hinged to the bottom plate, so that when the battery structure is disassembled and assembled, a hinged switch can be directly turned on, the partition plate can be turned over by 90 degrees, the battery cell is mounted in the accommodating space or taken out from the accommodating space, and the battery cell is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical energy storage, in particular to a CTP energy storage battery structure. Background Art

[0002] At present, most of the structural designs of electrochemical energy storage containers follow the principle that battery manufacturers integrate the cells into modules and then supply them. The energy storage integrator then places the modules on the designed battery racks and fixes them. Finally, copper bars are used on the front panel of the battery racks to perform series and parallel operations between the modules. Conventionally, multiple groups of cells are bundled to form a cell module that is installed in the battery box. When assembling the cell module and the battery box, the assembly process is complicated, resulting in low work efficiency. In addition, the size and weight of the modules in this way are large, and construction workers must use tools to install and disassemble them. Utility Model Content

[0003] The utility model aims to provide a CTP energy storage battery structure which is easy to disassemble and assemble.

[0004] To achieve the above object, the utility model provides a CTP energy storage battery structure, including at least one battery pack, wherein the battery pack includes:

[0005] A bottom plate, wherein a plurality of side plates are arranged at intervals on the bottom plate, a plurality of partition plates are arranged between each two adjacent side plates, the plurality of partition plates are arranged at intervals along the extending direction of the side plates, and the partition plates are hinged to the bottom plate; the bottom plate, the side plates and the partition plates enclose a containing space with a top opening;

[0006] A plurality of battery cells are arranged in the accommodating space; a copper busbar assembly is also arranged on the bottom plate, and the copper busbar assembly electrically connects the plurality of battery cells.

[0007] Optionally, a fixing belt is provided along the extension direction of the side plate, and the fixing belt tightly connects the plurality of battery cells and the copper busbar assembly.

[0008] Optionally, buckles are respectively provided on the partitions connected to the two ends of the bottom plate along the extension direction of the side plate, and the two ends of the fixing belt are respectively connected to the buckles.

[0009] Optionally, the fixing belt is elastic.

[0010] Optionally, a pulling device is provided on the battery cell, and the pulling device is detachably connected to the battery cell.

[0011] Optionally, the side plate is a liquid-cooled fluid exchange plate.

[0012] Optionally, the copper busbar assembly connects the negative electrode of the previous battery cell in series with the positive electrode of the next battery cell.

[0013] Optionally, it comprises a plurality of the battery packs arranged in parallel, the plurality of the battery packs arranged in parallel are spaced apart in the vertical direction, and two upper and lower adjacent battery packs are detachably connected.

[0014] Optionally, two upper and lower adjacent battery packs are connected via a connecting column.

[0015] Optionally, the positive electrode and the negative electrode of the battery pack electrically connected by the copper busbar assembly are on the same side.

[0016] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0017] The CTP energy storage battery structure provided by the utility model can form a plurality of small compartments with top openings, i.e., accommodating spaces, by providing a bottom plate and arranging a plurality of side plates on the bottom plate, and arranging a plurality of partitions between each two adjacent side plates, and the partitions are arranged in the extending direction of the side plates. A copper busbar assembly is provided on the bottom plate to electrically connect the positive and negative poles of a plurality of battery cells, so that a series or parallel circuit is formed between the plurality of battery cells, and the copper busbar can also play a role in supporting the battery cells. The partition is further provided to be hinged with the bottom plate, so that when disassembling and assembling the battery structure, the hinge switch can be directly opened, the partition can be flipped 90 degrees, the battery cell can be installed in the accommodating space or the battery cell can be taken out of the accommodating space, so as to facilitate the disassembly and assembly of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic diagram of a battery pack structure according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of a battery cell in the first direction according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the battery cell monomer according to an embodiment of the utility model in the second direction;

[0023] Figure 4 A schematic diagram of a plurality of battery packs according to an embodiment of the present utility model in a first direction;

[0024] Figure 5 A schematic diagram of connecting a plurality of battery packs according to an embodiment of the utility model to a bidirectional rheostat;

[0025] Figure 6 A schematic diagram of a copper busbar electrically connecting multiple battery cells according to an embodiment of the utility model;

[0026] Figure 7 A schematic diagram of a first direction of electrical connection of multiple battery packs according to an embodiment of the present utility model;

[0027] Figure 8 It is a schematic diagram of a second direction of electrical connection of multiple battery packs according to an embodiment of the present invention.

[0028] Among them, 1. bottom plate; 2. side plate; 3. partition; 31. buckle; 4. battery cell; 41. lifting device; 5. copper busbar assembly; 6. fixing belt; 7. connecting column; 8. battery pack. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] The CTP energy storage battery structure is described in detail below through specific embodiments:

[0032] like Figures 1 to 5 As shown, the utility model provides a CTP energy storage battery structure, including at least one battery pack 8, the battery pack 8 includes:

[0033] A bottom plate 1 is provided with a plurality of side plates 2 at intervals on the bottom plate 1, a plurality of partition plates 3 are provided between each two adjacent side plates 2, the plurality of partition plates 3 are arranged at intervals along the extending direction of the side plates 2, and the partition plates 3 are hinged to the bottom plate 1. The bottom plate 1, the side plates 2 and the partition plates 3 enclose a containing space with a top opening.

[0034] A plurality of battery cells 4 are arranged in the accommodation space. A copper busbar assembly 5 is also arranged on the bottom plate 1 , and the copper busbar assembly 5 electrically connects the plurality of battery cells 4 .

[0035] The bottom plate 1 can be made of plastic or other non-conductive materials. Slots can be provided on the bottom plate 1, and the side plates 2 can be inserted into the slots of the bottom plate 1 for easy disassembly. Of course, it can be understood that the bottom plate 1 and the side plates 2 are stably connected. The bottom plate 1 and the side plates 2 can also be integrally formed. The length of the side plate 2 can be the same as the length of the bottom plate 1 or slightly less than the length of the bottom plate 1, which is specifically determined according to the number and size of the battery cells 4. The spacing distances of the multiple side plates 2 can be equal, which is specifically determined according to the size of the battery cells 4. Further, multiple partitions 3 are provided between every two side plates 2 and the multiple partitions 3 are arranged at intervals. The size of the partition 3 can be just accommodated between the two side plates 2, so that the adjacent two partitions 3, the adjacent two side plates 2 and the bottom plate 1 enclose a top-opening accommodation space for accommodating the battery cells 4. The partition 3 is hinged to the bottom plate 1. Specifically, a hinge structure can be provided at one end of the bottom plate 1 and the partition 3 close to the bottom plate 1, so that the partition 3 can rotate around the hinge axis. Therefore, when installing the battery cell 4, the partition 3 can be flipped over to the bottom plate 1, and after the battery cell 4 is placed, the partition 3 can be directly flipped over to the side in contact with the battery cell 4. A locking mechanism can be set on the hinged structure or the top surface of the battery cell 4, and the battery cell 4 can be fixed by the locking mechanism after the battery cell 4 is installed. Other covering plates or cable ties can also be set on the top of the battery cell 4 to fix it, as long as the battery cell 4 can be fixed on the bottom plate 1. In addition, along the extension direction of the side plate 2, Figure 1 The last partition 3 shown can be fixedly connected to the bottom plate 1, and the length of the partition 3 can be the same as that of the bottom plate 1, which is more convenient for one-piece molding. On the other hand, it saves the cost of setting a hinge structure. In this embodiment, the side plate 2 and the partition 3 are in contact with the battery cell 4 to further fix the battery cell 4.

[0036] Further, a copper bar assembly 5 is also provided on the base plate 1, and the copper bar assembly 5 electrically connects multiple battery cells 4. In the present embodiment, the copper bar assembly 5 can be of any shape, as long as it can function as an electrical connection. Of course, it is understandable that the copper bar assembly 5 is arranged one-to-one with the battery cells 4, that is, the positive and negative poles of each battery cell 4 are connected by the copper bar assembly 5, so that a series circuit or a parallel circuit is formed between the multiple battery cells 4. In the present embodiment, the copper bar assembly 5 can be covered on the base plate 1 or welded on the base plate 1, or a groove with a certain shape can be opened on the base plate 1, and the copper bar assembly 5 is placed in the groove. It is understandable that the copper bar assembly 5 is stably connected to the base plate 1. On the one hand, the copper bar assembly 5 can withstand the conduction of large currents, and on the other hand, the copper bar assembly 5 can support the battery cells 4 and increase the stability of the base plate 1.

[0037] In this embodiment, the battery pack 8 refers to a battery structure formed by at least three side plates 2 , at least three partitions 3 between every two side plates 2 , battery cells 4 and copper busbar assemblies 5 .

[0038] The CTP energy storage battery structure provided by the utility model can form a plurality of small compartments with top openings, i.e., accommodating spaces, by setting a bottom plate 1 and arranging a plurality of side plates 2 on the bottom plate 1, and arranging a plurality of partitions 3 between each two adjacent side plates 2, and the partitions 3 are arranged in the extending direction of the side plates 2. The copper bar assembly 5 is arranged on the bottom plate 1 to electrically connect the positive and negative poles of the plurality of battery cells 4, so that a series or parallel circuit is formed between the plurality of battery cells 4, and the copper bar can also play the role of supporting the battery cells 4. The partition 3 is further arranged to be hinged with the bottom plate 1, so that when disassembling the battery structure, the hinge switch can be directly opened, the partition 3 can be turned 90 degrees, the battery cell 4 can be installed in the accommodating space or the battery cell 4 can be taken out of the accommodating space, so as to facilitate the disassembly and assembly of the battery cell 4. The battery cell 4 is directly connected to the bottom plate 1, and only the copper bar assembly 5 needs to be used to connect the battery cells 4, and the connection distance is short. Finally, the total length of the copper bar assembly 5 used is shorter than the length of the existing energy storage system.

[0039] Furthermore, a fixing belt 6 may be provided along the extension direction of the side plate 2 , and the fixing belt 6 tightly connects the plurality of battery cells 4 and the copper busbar assembly 5 .

[0040] The fixing belt 6 can fix the battery cell 4 by bundling. Specifically, the partition 3, the battery cell 4 and the bottom plate 1 can be fixed together by the fixing belt 6. The fixing belt 6 can be made of non-conductive materials such as plastic or nylon.

[0041] Furthermore, along the extension direction of the side plate 2 , buckles 31 are respectively provided on the partition plate 3 connected to the two ends of the bottom plate 1 , and the two ends of the fixing belt 6 are respectively connected to the buckles 31 .

[0042] That is to say, Figure 1 Buckles are respectively provided on the front and rear end surfaces in the direction shown. In this embodiment, the buckle can be in any shape such as a protrusion or a bend, and holes can be opened at both ends of the fixing belt 6, and the holes can be set on the protrusions or bends. It can be understood that the hole of the fixing belt 6 is smaller than the end of the buckle away from the partition 3, so as to prevent the fixing belt from being separated from the buckle.

[0043] In some other embodiments, the fixing belt 6 is elastic.

[0044] The above-mentioned setting of the fixing belt 6 with elasticity is to avoid the fixing belt 6 from damaging the battery cell 4 when fixing the battery cell 4. On the other hand, it allows the number and size of the battery cell 4 to be adjusted. In other words, the fixing belt 6 is ductile, and the same fixing belt 6 can be suitable for battery cells 4 of different sizes. In addition, the elastic fixing belt 6 can apply a downward force to the battery cell 4 when fixing the battery cell 4, so that the battery cell 4 is in close contact with the copper busbar assembly 5 on the bottom plate 1 to avoid poor contact. Of course, it can be understood that the length of the elastic fixing belt 6 is less than the total thickness of the multiple battery cells 4, that is, the length of the fixing belt 6 is less than Figure 1The distance between the front and rear partitions 3 in the direction shown.

[0045] Furthermore, a pulling device 41 is provided on the battery cell 4 , and the pulling device 41 is detachably connected to the battery cell 4 .

[0046] The lifting device 41 can be arranged on the top of the battery cell 4, so that it is convenient for workers to take it. The lifting device 41 can be made of soft nylon material or plastic material. Specifically, a groove can be opened on the top of the battery cell 4, and the lifting device 41 can be hidden in the groove after the assembly is completed to avoid affecting the installation of other battery cells 4.

[0047] In some embodiments, the side plate 2 is a liquid-cooled liquid exchange plate.

[0048] The side plate 2 is set as a liquid cooling exchange plate. Since the battery cell 4 is in contact with both the side plate 2 and the partition plate 3, the heat can be transferred to the liquid cooling exchange plate when the battery cell 4 generates heat during operation, and the heat is dissipated by the liquid circulation in the liquid cooling exchange plate. Furthermore, a motor pump can be set at the end of the liquid cooling exchange plate, and the motor pump is connected to the pipeline in the liquid cooling exchange plate, so that the operation of the motor pump can drive the liquid circulation in the liquid cooling exchange plate. Furthermore, Figure 1 The rearmost partition plate 3 in the direction shown is configured as a liquid-cooling liquid exchange plate and is fixedly connected to or integrally formed with the side plate 2 to further improve the heat dissipation effect.

[0049] In this embodiment, Figures 6 to 8 As shown, the copper busbar assembly 5 connects the negative electrode of the previous battery cell 4 with the positive electrode of the next battery cell 4 in series, or connects the positive electrode of the previous battery cell 4 with the negative electrode of the next battery cell 4, thereby connecting all the battery cells 4 in the entire battery structure in series. Of course, multiple battery cells 4 can also be connected in parallel through the copper busbar assembly 5, and the method of parallel connection is not repeated here.

[0050] like Figures 4 to 8 As shown, the CTP energy storage battery structure includes a plurality of parallel battery packs 8, wherein the plurality of parallel battery packs 8 are spaced apart in the vertical direction, and two upper and lower adjacent battery packs 8 are detachably connected.

[0051] The battery pack 8 is a battery structure with 14 rows and 7 cells 4 in each row. The detachable connection of multiple battery packs 8 in the vertical direction can be a snap-on connection or a plug-in connection. That is, the battery pack 8 of the upper layer can be plugged into the lower layer. Specifically, a mounting groove can be opened in the circumference of the bottom plate 1, and the side plate 2 extends out of the bottom plate 1 by a set length, and the side plate 2 of the upper layer is plugged into the bottom plate 1 of the lower layer. Of course, other detachable connection methods such as bolt connection can also be used. The interval between each layer of battery packs 8 is determined according to actual conditions. Figures 4 to 8A CTP energy storage battery structure with 14 rows, 7 cells per row, and 4, 6 layers is shown. The number of battery structures is determined according to the actual application. Figure 7 and Figure 8 As shown, taking series connection as an example, in each layer, the negative electrode or positive electrode of the previous battery cell 4 is connected to the positive electrode or negative electrode of the next battery cell 4 through the copper busbar assembly 5. In two adjacent layers, the positive electrode or negative electrode of the last battery cell 4 in the first layer is connected to the negative electrode or positive electrode of the first battery cell 4 in the second layer. Then the positive and negative electrodes of the entire battery system are connected to the positive and negative electrodes of the energy storage bidirectional converter.

[0052] In some embodiments, two upper and lower adjacent battery packs 8 are connected via a connecting column 7 .

[0053] Specifically, a groove can be made on the bottom plate 1, the connecting column 7 can be installed in the groove, and an anti-slip protrusion can be set on the connecting column 7, so that the multi-layer battery pack 8 can be connected in intervals up and down. The connecting column 7 can be set at the four corners of the bottom plate 1, and the specific setting position and the number of the connecting column 7 are set according to the situation.

[0054] In this embodiment, Figures 5 to 8 As shown, the positive and negative electrodes of the battery pack 8 formed by the electrical connection of the copper busbar assembly 5 are on the same side. Taking the series connection as an example, the battery cells 4 between the multiple layers can be connected in a "return" shape through the copper busbar assembly 5, so that the positive and negative electrodes of the battery pack 8 are in the same column or row, so as to facilitate connection with external devices. Of course, other connection directions are also possible, as long as the positive and negative electrodes of the battery pack 8 can be on the same side. The copper busbar assembly 5 in this embodiment can also be other connectors with conductive functions.

[0055] The CTP energy storage battery structure set in this application has a module-free design, which increases the density of the battery cells 4, saves space, and improves the overall energy density of the energy storage container. At the same time, it can save the integration and assembly steps of the modules in the factory, simplify the production process, and reduce production costs. In addition, the battery cells 4 can be installed on site at the power station. The weight and volume of a single battery cell 4 are small, which is easy for construction personnel to install.

[0056] This design is also easy to operate and maintain in the later stage of energy storage power station operation and maintenance. The operation and maintenance operator can replace the battery cells 4 with poor quality or recharge the battery cells 4 with poor consistency by untying the fixing belt 6 and rotating the partition 3, without replacing the entire module. Since the volume and weight of a single battery cell 4 are small, one person can complete the entire operation step, which is better than the replacement of the module, which requires more than two people.

[0057] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CTP energy storage battery structure, characterized in that: The invention comprises at least one battery pack (8), wherein the battery pack (8) comprises: A bottom plate (1), wherein a plurality of side plates (2) are arranged at intervals on the bottom plate (1), a plurality of partition plates (3) are arranged between each two adjacent side plates (2), the plurality of partition plates (3) are arranged at intervals along the direction in which the side plates (2) extend, and the partition plates (3) are hinged to the bottom plate (1); the bottom plate (1), the side plates (2) and the partition plates (3) enclose a containing space with a top opening; A plurality of battery cells (4) are arranged in the accommodating space; a copper busbar assembly (5) is also provided on the bottom plate (1), and the copper busbar assembly (5) electrically connects the plurality of battery cells (4).

2. The CTP energy storage battery structure according to claim 1, characterized in that: A fixing belt (6) is provided along the extension direction of the side plate (2), and the fixing belt (6) tightly connects the plurality of battery cells (4) and the copper busbar assembly (5).

3. The CTP energy storage battery structure according to claim 2, characterized in that: Buckles (31) are respectively provided on the partitions (3) connected to the two ends of the bottom plate (1) along the extension direction of the side plate (2), and the two ends of the fixing belt (6) are respectively connected to the buckles (31).

4. The CTP energy storage battery structure according to claim 2, characterized in that: The fixing belt (6) is elastic.

5. The CTP energy storage battery structure according to claim 1, characterized in that: The battery core (4) is provided with a lifting device (41), and the lifting device (41) is detachably connected to the battery core (4).

6. The CTP energy storage battery structure according to claim 1, characterized in that: The side plate (2) is a liquid-cooling liquid exchange plate.

7. The CTP energy storage battery structure according to claim 1, characterized in that: The copper busbar assembly (5) connects the negative electrode of the previous battery cell (4) and the positive electrode of the next battery cell (4) in series.

8. The CTP energy storage battery structure according to any one of claims 1 to 7, characterized in that: It comprises a plurality of battery packs (8) arranged in parallel, wherein the plurality of battery packs (8) arranged in parallel are arranged at intervals in the vertical direction, and two battery packs (8) adjacent to each other vertically are detachably connected.

9. The CTP energy storage battery structure according to claim 8, characterized in that: Two upper and lower adjacent battery packs (8) are connected via a connecting column (7).

10. The CTP energy storage battery structure according to claim 1, characterized in that: The positive electrode and the negative electrode of the battery pack (8) formed by electrical connection through the copper busbar assembly (5) are on the same side.

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