Battery pack assembly and energy storage system

Abstract

The application provides a battery pack group and an energy storage system. The battery pack comprises a battery body, the battery body has oppositely arranged first and second end faces, the first end face is provided with an interface, a seat body is arranged on the second end face, the seat body is provided with a first guide part, a conductive part is arranged on the seat body, the conductive part is electrically connected with the battery body, and at least a part of the conductive part protrudes out of the seat body away from the side of the second end face; the interface is a positive electrode interface, and the conductive part is a negative electrode conductive part; or the interface is a negative electrode interface, and the conductive part is a positive electrode conductive part. The application reasonably sets the structure of the battery pack, reduces the material input amount of the cable for installing two battery packs, reduces the production cost of the product, the setting can also shorten the connection path between the two battery packs, can reduce the resistance of the internal loop of the battery pack group, improve the energy efficiency of the system, and reduce the internal space occupancy of the energy storage system.

Description

Technical Field

[0001] This application relates to the field of battery module technology, and more specifically, to a battery pack and energy storage system. Background Technology

[0002] In related technologies, energy storage systems include multiple battery packs, each with independent positive and negative input / output interfaces. Each interface requires a corresponding plug, socket, and cable connection. The connection of multiple cables makes the wiring between battery packs complex and requires consideration of wiring space. It also increases the resistance of the entire energy storage system circuit, resulting in unnecessary energy consumption. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this application proposes a battery pack.

[0005] The second aspect of this application proposes a battery pack assembly.

[0006] The third aspect of this application proposes an energy storage system.

[0007] In view of the above, a first aspect of this application provides a battery pack, comprising: a battery body having a first end face and a second end face disposed opposite to each other, the first end face having an interface; a base body disposed on the second end face, the base body having a first guide portion; a conductive element disposed on the base body, the conductive element being electrically connected to the battery body, and at least a portion of the conductive element protruding from the side of the base body away from the second end face; the interface being a positive terminal interface and the conductive element being a negative terminal conductive element; or the interface being a negative terminal interface and the conductive element being a positive terminal conductive element.

[0008] The battery pack provided in this application includes a battery body, a base, and conductive components.

[0009] The battery body has a first end face and a second end face, which are arranged opposite to each other and spaced apart. The first end face has an interface. At least a portion of a conductive element protrudes from the second end face and is electrically connected to the battery body. That is, the interface and the conductive element are located on different sides of the battery body.

[0010] A base is located on the second end face and has a first guide portion, which serves a guiding function. The battery pack is used in a battery pack assembly, which includes a connector. The first guide portion is used to mate with a first mating portion of the connector. Specifically, when the battery pack mates with the connector of the battery pack assembly, the first guide portion mates with the first mating portion of the connector to guide the battery pack through the blind-mating connection path, simplifying the assembly of the battery pack and connector and enabling smooth assembly of the battery pack with the connector.

[0011] Furthermore, a conductive element is disposed on the base body, and the conductive element is electrically connected to the battery body, with at least a portion of the conductive element protruding from the side of the base body opposite to the second end face. The conductive element is used to cooperate with the conductor spring of the connector to enable electrical connection between the battery pack and the connector.

[0012] Furthermore, both the first guide portion and the conductive component are located on the base. The base serves as the mounting carrier for the first guide portion and the conductive component, and has the function of installing and fixing the first guide portion and the conductive component, ensuring the mating dimensions of the first guide portion and the guide component. The first guide portion guides the assembly path of the battery body, enabling the battery pack to be effectively aligned with the connector. It can absorb assembly deviations generated during the battery pack installation process and indirectly ensure the mating dimensions of the conductive component and the conductor spring of the connector. While ensuring effective electrical connection between the conductive component and the conductor spring, it does not form a large contact resistance, which helps to reduce the energy consumption of the product.

[0013] The energy storage system includes at least one battery pack group, each battery pack group including two battery packs and a connector, the two battery packs being electrically connected via the connector.

[0014] Specifically, when assembling two battery packs and a connector, the conductive components of the two battery packs are positioned opposite to the conductor springs of the connector, while the interfaces of the two battery packs are positioned away from the conductor springs. When the two battery packs are pushed towards the connector, the first guide portions of the two battery packs align with multiple first mating portions of the connector, allowing the conductive components of the two battery packs to effectively insert into the conductor springs of the connector, thus achieving electrical connection between the two battery packs. In this configuration, one battery pack has a positive interface and a negative conductive component, while the other battery pack has a negative interface and a positive conductive component.

[0015] In other words, two adjacent battery packs are electrically connected via a connector. This arrangement achieves series connection of the positive and negative terminals of the two battery packs over the shortest possible distance. The battery pack is designed with a first guide portion that mates with the first mating part of the connector, and also with a conductive element that mates with the conductor spring of the connector. The positive terminal of one battery pack is connected to the negative terminal of another battery pack via the connector. This reduces the material input for the cables used to install the two battery packs, lowers the production cost, and also shortens the connection path between the two battery packs, reducing the resistance of the internal circuit of the battery pack group, improving the energy efficiency of the system, reducing the internal space occupancy of the energy storage system, and facilitating the installation and layout of other components (such as communication cables, liquid cooling pipelines, etc.).

[0016] The battery pack described above according to this application may also have the following additional technical features:

[0017] In some embodiments, optionally, the first guide portion and the conductive element are both disposed on the side of the base body away from the second end face, and the battery body includes a conductive element, a portion of which protrudes from the second end face and is connected to the conductive element.

[0018] In this embodiment, the mating structure of the first guide portion, the conductive element, the base and the battery body is further defined.

[0019] The first guide portion and the conductive component are both located on the side of the base body away from the second end face. It can be understood that the first guide portion and the conductive component are mounted on the battery body through the base body.

[0020] In this embodiment, at least a portion of the first guide portion protrudes from the side of the seat body away from the second end face, and at least a portion of the conductive element protrudes from the side of the seat body away from the second end face.

[0021] This setup can meet the requirements for aligning and guiding the battery pack and the connector, and it can also meet the requirements for electrically connecting two battery packs through the connector.

[0022] In addition, the battery body includes a conductor, a portion of which protrudes from the second end face and is connected to a conductive element. The conductor and the conductive element are electrically connected to meet the usage requirements of two battery packs being electrically connected via a connector.

[0023] In some embodiments, the conductive element may optionally include: a first connecting segment connected to the base, the first connecting segment being located on one side of the first guide portion and electrically connected to a conductor; and a second connecting segment connected to the first connecting segment and extending in a direction away from the base, the second connecting segment and the first guide portion being arranged at intervals to enclose a first receiving groove.

[0024] In this embodiment, the structure of the conductive element is further defined.

[0025] Specifically, the conductive component includes a first connecting segment and a second connecting segment, with the second connecting segment connected to the first connecting segment.

[0026] The first connecting section is disposed on the base body and is connected to the base body. The first connecting section is located on one side of the first guide portion.

[0027] The second connecting section extends away from the base body, and the second connecting section and the first guide portion are arranged at intervals to enclose the first receiving groove. The first receiving groove is used to receive the first protrusion of the connector, that is, when the battery pack and the connector are plugged in, the first protrusion of the connector is inserted into the first receiving groove.

[0028] This application makes reasonable use of the structure of the first guide portion, so that the first guide portion not only has a guiding function, but also functions as part of the groove wall forming the first receiving groove. The first guide portion and the second connecting section cooperate to limit the positioning structure of the connector, thereby indirectly limiting the mating size of the connector's conductor spring and the conductive parts of the battery pack, providing effective and reliable structural support to avoid forming a large contact resistance.

[0029] In some embodiments, optionally, a second guide portion is provided on the side of the seat body where the first guide portion is provided. The second guide portion is located on the side of the second connecting section opposite to the first guide portion. The second connecting section and the second guide portion are arranged at intervals to enclose the second receiving groove.

[0030] In this embodiment, the structure of the base and the conductive element is further defined.

[0031] Specifically, the seat body is also provided with a second guide portion, which is located on the same side of the seat body as the first guide portion, and the second guide portion is located on the side of the second connecting section opposite to the first guide portion.

[0032] The second guide portion serves a guiding function. It is used in conjunction with the second mating portion of the connector. Specifically, when the battery pack mates with the connector of the battery pack assembly, the second guide portion mates with the second mating portion of the connector to guide the battery pack through the blind-mating connection path, simplifying the assembly of the battery pack and connector and enabling smooth assembly of the battery pack with the connector.

[0033] The first guide portion, the second guide portion, and the conductive component are all located on the base body. The base body serves as the mounting carrier for these components, providing installation and fixation while ensuring their dimensional fit. Both the first and second guide portions guide the assembly path of the battery body, enabling effective alignment between the battery pack and the connector. This absorbs assembly deviations during battery pack installation and indirectly ensures the dimensional fit between the conductive component and the connector's conductor springs. While ensuring effective electrical connection between the conductive component and the conductor springs, it avoids creating excessive contact resistance, thus reducing product energy consumption.

[0034] Specifically, when assembling two battery packs and a connector, the two battery packs are pushed toward the connector, and the first guide portions of the two battery packs are aligned with the multiple first mating portions of the connector, and the second guide portions of the two battery packs are aligned with the multiple second mating portions of the connector, so that the conductive parts of the two battery packs are effectively inserted into the conductor springs of the connector, thereby achieving the purpose of electrical connection between the two battery packs.

[0035] The second guide portion is located on the side of the second connecting section opposite to the first guide portion. The first guide portion and the second guide portion cooperate to limit the mating path of the battery pack and the connector from multiple directions and angles when the battery pack and the connector are assembled, so that the battery pack can be smoothly inserted into the connector.

[0036] Additionally, the second connecting section and the second guide portion are arranged at intervals to enclose the second receiving groove. The second receiving groove is used to accommodate the second protrusion of the connector; that is, when the battery pack and the connector are plugged in, the second protrusion of the connector is inserted into the second receiving groove.

[0037] This application makes reasonable use of the structure of the first guide portion and the second guide portion, so that the first guide portion and the second guide portion not only have a guiding function, but also have the function of forming part of the groove wall of the first receiving groove, and part of the groove wall of the second receiving groove. The first guide portion and the second connecting section cooperate with each other, thereby limiting the positioning structure of the connector, and indirectly limiting the mating size of the conductor spring of the connector and the conductive parts of the battery pack, providing effective and reliable structural support to avoid forming a large contact resistance.

[0038] In some embodiments, the conductive element may optionally include a third connecting segment, to which both the base and the second connecting segment are connected, and a first guide portion is located between the first connecting segment and the third connecting segment.

[0039] In this embodiment, the structure of the conductive element is further defined.

[0040] Specifically, the conductive component also includes a third connecting segment, which is connected to the base and to the second connecting segment, and the first connecting segment and the third connecting segment are arranged at intervals.

[0041] The first guide section is located between the first connecting section and the third connecting section; that is, the gap between the first connecting section and the third connecting section is used to avoid the first guide section.

[0042] This application rationally designs the structure of the conductive component, increasing the connection area between the conductive component and the base, thus ensuring the stability and reliability of the assembly of the conductive component and the base.

[0043] In some embodiments, optionally, the length of the portion of the first guide protruding from the base body along the first end face to the second end face is greater than the length of the portion of the conductive element protruding from the base body.

[0044] In this embodiment, the mating structure of the first guide portion, the conductive element, and the base is further defined.

[0045] Wherein, along the first end face to the second end face, the length of the portion of the first guide portion protruding from the base body is greater than the length of the portion of the conductive element protruding from the base body.

[0046] In this way, when assembling the battery pack and connector, the first guide portion contacts the first mating portion of the connector before the conductive component, which enables the battery pack to be effectively aligned with the connector. This allows for adjustment of the alignment dimensions of the conductive component and the conductor spring of the connector, enabling the conductive component to be smoothly inserted into the conductor spring.

[0047] In some embodiments, the conductive element and the base may be detachably connected.

[0048] In this embodiment, the mating structure of the conductive element and the base is further defined.

[0049] Optionally, the conductive component and the base can be detachably connected. The connection method between the conductive component and the base includes any one or a combination of the following: snap-fit, screw connection, magnetic attraction, and fastening with fasteners (e.g., screws, bolts, or rivets). The detachable connection between the conductive component and the base means that the assembly and disassembly of the conductive component and the installation position of the conductive component relative to the base can be determined according to actual conditions, thus adapting to the usage requirements of different battery pack models. This enhances the product's adaptability and improves its performance.

[0050] In some embodiments, the base can be detachably connected to the battery body.

[0051] In this embodiment, the mating structure between the base and the battery body is further defined.

[0052] The base and battery body are detachably connected. The connection method includes any one or a combination of the following: snap-fit, screw-fit, magnetic attraction, and fastening with fasteners (such as screws, bolts, or rivets). This detachable connection allows for easy assembly and disassembly of the base and battery body, as well as determination of the base's installation position relative to the battery body, based on actual needs. This adaptability makes the product suitable for different battery pack models, enhancing its versatility and performance.

[0053] In some embodiments, optionally, the battery body further includes: a housing having a first end face and a second end face; a plurality of battery cells located inside the housing, the plurality of battery cells being arranged along the direction from the first end face to the second end face, each battery cell including a positive electrode portion and a negative electrode portion, wherein in any two adjacent battery cells, the negative electrode portion of one battery cell is electrically connected to the positive electrode portion of the other battery cell; and in the two outermost battery cells, the positive electrode portion of one battery cell is connected to one of a conductor and an interface, and the negative electrode portion of the other battery cell is connected to the other of a conductor and an interface.

[0054] In this embodiment, the structure of the battery body is further defined.

[0055] The battery body also includes a casing and multiple battery cells.

[0056] Multiple battery cells are located within the housing. The multiple battery cells are arranged along a direction from a first end face to a second end face. Each of the multiple battery cells includes a positive electrode and a negative electrode.

[0057] In any two adjacent battery cells, the negative terminal of one cell is electrically connected to the positive terminal of the other cell.

[0058] Of the two outermost cells, the positive terminal of one cell is connected to either the conductor or the interface, while the negative terminal of the other cell is connected to the other conductor or the interface. In other words, of the two outermost cells, the positive terminal of one cell is electrically connected to the conductor, and the negative terminal of the other cell is connected to the interface. Alternatively, of the two outermost cells, the negative terminal of one cell is electrically connected to the conductor, and the positive terminal of the other cell is connected to the interface.

[0059] The casing securely holds multiple battery cells together, which are stacked sequentially from the first end face to the second end face. The multiple battery cells are connected in series with positive and negative terminals.

[0060] Optionally, the battery cells include blade cells.

[0061] Optionally, the housing includes an upper shell, a lower shell, a first end plate, and a second end plate. The upper shell and the lower shell are connected, the first end plate is connected to a first side of the upper shell and the lower shell, and the second end plate is connected to a second side of the upper shell and the lower shell. The first end plate has a first end face, and the second end plate has a second end face.

[0062] The first and second end plates resist the expansion force of the battery cells. The first and second end plates, together with the upper and lower shells, form a complete frame that securely binds multiple battery cells within it.

[0063] A second aspect of the present invention provides a battery pack assembly comprising: two battery packs as described in the first aspect, one battery pack having a positive terminal interface and the other battery pack having a negative terminal interface; and a connector, wherein the conductive components of the two battery packs are detachably and electrically connected via the connector.

[0064] The battery pack assembly provided by this invention includes two battery packs and a connector. Either battery pack can be detachably connected to the connector, and the conductive components of the two battery packs are detachably electrically connected via the connector.

[0065] Specifically, when assembling two battery packs and connectors, the conductive parts of the two battery packs are positioned opposite the connector, and the interfaces of the two battery packs are positioned away from the conductor springs. The two battery packs are pushed towards the connector, allowing the conductive parts of the two battery packs to be detachably electrically connected through the connector. That is, the positive terminal of one battery pack is connected to the negative terminal of the other battery pack through the connector. This reduces the material input for the cables used to install the two battery packs, lowering the product's production cost. Furthermore, this arrangement shortens the connection path between the two battery packs, reduces the resistance of the internal circuits of the battery pack assembly, improves system energy efficiency, reduces the internal space occupancy of the energy storage system, and facilitates the installation and arrangement of other components (such as communication cables, liquid cooling pipes, etc.).

[0066] In some embodiments, the connector optionally includes: a connecting plate; a plurality of first mating portions, each first mating portion being detachably connected to a first guide portion of a battery pack; a plurality of second mating portions, each second mating portion being detachably connected to a second guide portion of a battery pack; and two positioning structures, wherein the plurality of first mating portions, the plurality of second mating portions, and the two positioning structures are disposed on the same side of the connecting plate, and the positioning structures are provided with conductor springs, the conductor springs being provided with conductive grooves, and a conductive element of a battery pack being inserted into each conductive groove.

[0067] In this embodiment, the structure of the connector is further defined.

[0068] The connector includes a connecting part, multiple first mating parts, multiple second mating parts, and two positioning structures.

[0069] Multiple first mating parts, multiple second mating parts, and two positioning structures are located on the same side of the connecting plate.

[0070] Each positioning structure mates with a battery pack. Specifically, a conductive element of a battery pack is inserted into each conductive slot.

[0071] Each first mating part is detachably connected to a first guide part of a battery pack, and each second mating part is detachably connected to a second guide part of a battery pack.

[0072] In this assembly, when two battery packs and connectors are assembled, the conductive element of one battery pack is positioned opposite to the conductor spring of a positioning structure, and the conductive element of the other battery pack is positioned opposite to the conductor spring of another positioning structure. The interface of one battery pack is positioned away from the connector, and the interface of the other battery pack is positioned away from the connector. The first guide portions of the two battery packs are aligned with multiple first mating portions of the connector, and the second guide portions of the two battery packs are aligned with multiple second mating portions of the connector, so that the conductive elements of the two battery packs can be effectively inserted into the conductive grooves of the two conductor springs of the connector, achieving the purpose of electrical connection between the two battery packs. Specifically, the interface of one battery pack is a positive interface, and the conductive element is a negative conductive element; the interface of the other battery pack is a negative interface, and the conductive element is a positive conductive element.

[0073] It is understandable that the conductive groove of the conductor spring serves to accommodate the conductive element and to electrically connect with the conductive element.

[0074] In some embodiments, optionally, one of the first guide portion and the first mating portion is a guide post and the other is a guide cylinder; one of the second guide portion and the second mating portion is a guide post and the other is a guide cylinder; wherein the guide post is inserted into the guide cylinder.

[0075] In this embodiment, the structures of the first guide portion, the first mating portion, the second guide portion, and the second mating portion are further defined.

[0076] One of the first guide portion and the first mating portion is a guide post, and the other is a guide cylinder. That is, the first guide portion is a guide post, and the first mating portion is a guide cylinder. Or the first guide post is a guide cylinder, and the first mating portion is a guide post.

[0077] One of the second guide section and the second mating section is a guide post, and the other is a guide cylinder. That is, the second guide section is a guide post, and the second mating section is a guide cylinder. Or, the second guide post is a guide cylinder, and the second mating section is a guide post.

[0078] The guide post can be inserted into the guide cylinder. The cooperation between the guide post and the guide cylinder can absorb the assembly deviations generated during the battery pack installation process, and can indirectly ensure the mating dimensions of the conductive parts and the conductor springs of the connector. While ensuring effective electrical connection between the conductive parts and the conductor springs, it will not form a large contact resistance, which helps to reduce the energy consumption of the product.

[0079] In some embodiments, optionally, the outer diameter of the end of the guide post gradually decreases along the connecting plate to the guide post.

[0080] In this embodiment, the structure of the guide post is further defined such that the outer diameter of the end of the guide post gradually decreases from the connecting plate to the guide post. In other words, the end of the guide post has a gradually changing cross-section, allowing the guide post to be smoothly inserted into the guide cylinder. This design reduces the assembly difficulty of the two battery packs and the connector, thus improving the product's assembly efficiency.

[0081] In some embodiments, the positioning structure may optionally include: a first protrusion; a second protrusion, the first protrusion and the second protrusion being arranged at a distance, a conductor spring being connected between the first protrusion and the second protrusion, the first protrusion being inserted into a first receiving groove of the battery pack, and the second protrusion being inserted into a second receiving groove of the battery pack.

[0082] In this embodiment, the specific structure of the positioning structure is further defined.

[0083] The positioning structure includes a first protrusion and a second protrusion, which are arranged at intervals. The first protrusion, the second protrusion, and the connecting plate enclose a space for accommodating the conductor spring.

[0084] The conductor spring is connected between the first protrusion and the second protrusion. When assembling the battery pack and connector, the first protrusion is inserted into the first receiving groove of the battery pack, and the second protrusion is inserted into the second receiving groove of the battery pack.

[0085] The first protrusion, the first receiving groove, the second protrusion, and the second receiving groove cooperate to effectively limit the mating dimensions of the battery pack and the connector. This ensures the mating dimensions of the conductive components and the conductor springs of the connector, guaranteeing effective electrical connection between the conductive components and the conductor springs while preventing excessive contact resistance, thus helping to reduce the product's energy consumption.

[0086] In some embodiments, the connecting plate may optionally have multiple connecting portions for mounting and positioning the connecting plate.

[0087] In this embodiment, the structure of the connecting plate is further defined.

[0088] Specifically, the connecting plate has multiple connecting parts, which are used for the installation and positioning of the connecting plate.

[0089] The connector is used to mate with the second support beam assembly of the energy storage system so that the connector can be mounted on the cluster frame, allowing the two battery packs to be effectively aligned and plugged into the connector.

[0090] A third aspect of the present invention provides an energy storage system comprising: a cluster frame; and at least one battery pack assembly as described in the second aspect, the battery pack assembly being detachably mounted on the cluster frame.

[0091] The energy storage system provided by the present invention includes a cluster frame and at least one battery pack group as described in the second aspect. Since the energy storage system includes the battery pack group as described in the second aspect, it has all the beneficial effects of the battery pack group, which will not be described in detail here.

[0092] Understandably, the cluster rack serves to install and secure the battery pack.

[0093] In some embodiments, the cluster may optionally include: a plurality of first support beam groups, the plurality of first support beam groups being arranged at intervals along a first direction; at least one second support beam group, wherein a second support beam group is provided between any two adjacent first support beam groups, and the connecting part of the connector is detachably connected to the second support beam group; each first support beam group and each second support beam group are provided with a plurality of support beams, the plurality of support beams being arranged at intervals along a second direction, and each support beam extending along a third direction; a battery pack group is provided between two adjacent first support beam groups, and the battery pack is mounted on the support beam.

[0094] In this embodiment, the cluster frame includes multiple first support beam groups and at least one second support beam group.

[0095] Multiple first support beam groups are arranged at intervals along a first direction, and a second support beam group is set between any two adjacent first support beam groups.

[0096] The connector's connecting part is detachably connected to the second support beam assembly.

[0097] Each first support beam group is provided with multiple support beams, which are arranged at intervals along the second direction, and each support beam extends along the third direction.

[0098] Each second support beam group is provided with multiple support beams, which are arranged at intervals along the second direction, and each support beam extends along the third direction.

[0099] The support beam serves to support and secure the battery pack.

[0100] Optionally, the second support beam assembly includes a fixed bracket for connecting to the connector's connection portion.

[0101] Specifically, the connector's connecting part is fixedly connected to the fixed bracket on the cluster frame, and the two battery packs of the battery pack group are placed on the supporting beams of the first support beam group and the second support beam group. The two battery packs are pushed toward the connector, so that the conductive parts of the two battery packs are respectively inserted into the two conductive slots of the connector, so as to achieve the purpose of electrical connection between the two battery packs through the connector.

[0102] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0103] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0104] Figure 1 A first-view structural schematic diagram of an energy storage system according to an embodiment of this application is shown;

[0105] Figure 2 A partial structural schematic diagram of an energy storage system according to an embodiment of this application is shown;

[0106] Figure 3 A second-view structural schematic diagram of an energy storage system according to an embodiment of this application is shown;

[0107] Figure 4 An exploded view of a battery pack assembly according to an embodiment of this application is shown;

[0108] Figure 5 A partial structural schematic diagram of a battery pack assembly according to an embodiment of this application is shown;

[0109] Figure 6 An exploded view of a battery pack according to an embodiment of this application is shown;

[0110] Figure 7 A schematic diagram of the connector structure according to an embodiment of this application is shown.

[0111] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0112] 10 Battery pack, 100 Battery body, 110 First end face, 112 Interface, 120 Second end face, 130 Housing, 140 Cell, 142 Positive electrode, 144 Negative electrode, 150 Upper shell, 160 Lower shell, 170 First end plate, 180 Second end plate, 190 Conductor, 200 Base, 210 First guide, 220 Second guide, 230 First fixing part, 240 Second fixing part, 300 Conductive component, 310 First connecting section, 320 Second connecting section Section, 330 Third connecting section, 400 First receiving slot, 500 Second receiving slot, 60 Battery pack, 600 Connector, 610 Connecting plate, 620 First mating part, 630 Second mating part, 640 Positioning structure, 642 First protrusion, 644 Second protrusion, 650 Conductor spring, 652 Conductive groove, 660 Connecting part, 70 Energy storage system, 700 Cluster frame, 710 First support beam group, 720 Second support beam group, 730 Support beam, 740 Fixed bracket. Detailed Implementation

[0113] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0114] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0115] The following reference Figures 1 to 7 The present application describes a battery pack 10, a battery pack group 60, and an energy storage system 70 according to some embodiments.

[0116] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a battery pack 10 according to some embodiments of this application includes a battery body 100, a base 200, and a conductive element 300.

[0117] The battery body 100 has a first end face 110 and a second end face 120 disposed opposite to each other.

[0118] The first end face 110 is provided with an interface 112.

[0119] The base 200 is located on the second end face 120.

[0120] The seat 200 is provided with a first guide section 210.

[0121] The conductive element 300 is provided on the base 200.

[0122] The conductive element 300 is electrically connected to the battery body 100, and at least a portion of the conductive element 300 protrudes from the side of the seat 200 away from the second end face 120.

[0123] Interface 112 is the positive interface, and conductive component 300 is the negative conductive component.

[0124] Alternatively, interface 112 can be the negative interface, and conductive component 300 can be the positive conductive component.

[0125] The battery pack 10 provided in this application includes a battery body 100, a base 200, and a conductive element 300.

[0126] The battery body 100 has a first end face 110 and a second end face 120, which are arranged opposite to each other and spaced apart. The first end face 110 is provided with an interface 112. At least a portion of a conductive member 300 protrudes from the second end face 120, and the conductive member 300 is electrically connected to the battery body 100. That is, the interface 112 and the conductive member 300 are located on different sides of the battery body 100.

[0127] A base 200 is disposed on the second end face 120, and the base 200 is provided with a first guide portion 210, which has a guiding function. The battery pack 10 is used in the battery pack assembly 60, which includes a connector 600. The first guide portion 210 is used to cooperate with the first mating portion 620 of the connector 600. Specifically, when the battery pack 10 mates with the connector 600 of the battery pack assembly 600, the first guide portion 210 cooperates with the first mating portion 620 of the connector 600 to guide the battery pack 10 into the blind-mating connection path, simplifying the assembly difficulty of the battery pack 10 and the connector 600, and enabling the battery pack 10 to be smoothly assembled with the connector 600.

[0128] Furthermore, a conductive element 300 is disposed on the base 200, and the conductive element 300 is electrically connected to the battery body 100, with at least a portion of the conductive element 300 protruding from the side of the base 200 opposite to the second end face 120. The conductive element 300 is used to cooperate with the conductor spring 650 of the connector 600 to electrically connect the battery pack 10 to the connector 600.

[0129] Furthermore, both the first guide portion 210 and the conductive element 300 are disposed on the base 200. The base 200 serves as the mounting carrier for the first guide portion 210 and the conductive element 300, and has the function of installing and fixing the first guide portion 210 and the conductive element 300, ensuring the mating dimensions of the first guide portion 210 and the guide element. The first guide portion 210 guides the assembly path of the battery body 100, enabling the battery pack 10 to be effectively aligned with the connector 600. It can absorb assembly deviations generated during the installation process of the battery pack 10, and indirectly ensure the mating dimensions of the conductive element 300 and the conductor spring 650 of the connector 600. While ensuring effective electrical connection between the conductive element 300 and the conductor spring 650, it does not form a relatively large contact resistance, which helps to reduce the energy consumption of the product.

[0130] The energy storage system 70 includes at least one battery pack group 60, each battery pack group 60 including two battery packs 10 and a connector 600, the two battery packs 10 being electrically connected via the connector 600.

[0131] Specifically, when assembling two battery packs 10 and connector 600, the conductive elements 300 of the two battery packs 10 are positioned opposite to the conductor springs 650 of the connector 600, and the interfaces 112 of the two battery packs 10 are positioned away from the conductor springs 650. When the two battery packs 10 are pushed towards the connector 600, the first guide portions 210 of the two battery packs 10 are aligned with the plurality of first mating portions 620 of the connector 600, so that the conductive elements 300 of the two battery packs 10 are effectively inserted into the conductor springs 650 of the connector 600, achieving the purpose of electrical connection between the two battery packs 10. In one battery pack 10, the interface 112 is the positive terminal and the conductive element 300 is the negative terminal; in the other battery pack 10, the interface 112 is the negative terminal and the conductive element 300 is the positive terminal.

[0132] In other words, two adjacent battery packs 10 are electrically connected via connector 600. This arrangement achieves series connection of the positive and negative terminals of the two battery packs 10 over the shortest possible distance. Each battery pack 10 is designed with a first guide portion 210 that mates with the first mating portion 620 of connector 600, and a conductive element 300 that mates with the conductor spring 650 of connector 600. The positive terminal of one battery pack 10 is connected to the negative terminal of the other battery pack 10 via connector 600. This reduces the material input for the cables used to install the two battery packs 10, lowering production costs. Furthermore, this arrangement shortens the connection path between the two battery packs 10, reduces the resistance of the internal circuits of the battery pack group 60, improves system energy efficiency, reduces the internal space occupancy of the energy storage system 70, and facilitates the installation and arrangement of other components (such as communication cables, liquid cooling pipes, etc.).

[0133] In some embodiments, optionally, such as Figure 6 As shown, the first guide portion 210 and the conductive element 300 are both located on the side of the base 200 away from the second end face 120.

[0134] The battery body 100 includes a conductor 190.

[0135] A portion of the conductor 190 protrudes from the second end face 120 and is connected to the conductor 300.

[0136] In this embodiment, the mating structure of the first guide portion 210, the conductive element 300, the base 200, and the battery body 100 is further defined.

[0137] The first guide portion 210 and the conductive element 300 are both located on the side of the base 200 away from the second end face 120. It can be understood that the first guide portion 210 and the conductive element 300 are mounted on the battery body 100 through the base 200.

[0138] At least a portion of the first guide portion 210 protrudes from the seat 200 on the side opposite to the second end face 120, and at least a portion of the conductive element 300 protrudes from the seat 200 on the side opposite to the second end face 120.

[0139] This setup can meet the alignment and guidance requirements of the battery pack 10 and the connector 600, and can also meet the requirements of the two battery packs 10 being electrically connected through the connector 600.

[0140] In addition, the battery body 100 includes a conductor 190, a portion of which protrudes from the second end face 120 and is connected to the conductor 300. The conductor 190 is electrically connected to the conductor 300 to meet the usage requirements of two battery packs 10 being electrically connected via a connector 600.

[0141] In some embodiments, optionally, such as Figure 2 and Figure 5 As shown, the conductive component 300 includes a first connecting segment 310 and a second connecting segment 320.

[0142] The first connecting section 310 is connected to the base 200.

[0143] The first connecting section 310 is located on one side of the first guide section 210.

[0144] The first connecting segment 310 is electrically connected to the conductor 190.

[0145] The second connecting segment 320 is connected to the first connecting segment 310, and the second connecting segment 320 extends in a direction away from the seat body 200.

[0146] The second connecting section 320 and the first guide section 210 are arranged at intervals to enclose the first receiving groove 400.

[0147] In this embodiment, the structure of the conductive element 300 is further defined.

[0148] Specifically, the conductive element 300 includes a first connecting segment 310 and a second connecting segment 320, with the second connecting segment 320 connected to the first connecting segment 310.

[0149] The first connecting section 310 is disposed on the base 200 and is connected to the base 200. The first connecting section 310 is located on one side of the first guide portion 210.

[0150] The second connecting segment 320 extends away from the base 200, and the second connecting segment 320 and the first guide portion 210 are arranged at intervals to enclose the first receiving groove 400. The first receiving groove 400 is used to receive the first protrusion 642 of the connector 600, that is, when the battery pack 10 and the connector 600 are plugged in, the first protrusion 642 of the connector 600 is inserted into the first receiving groove 400.

[0151] This application makes reasonable use of the structure of the first guide portion 210, so that the first guide portion 210 not only has a guiding function, but also forms part of the groove wall of the first receiving groove 400. The first guide portion 210 cooperates with the second connecting section 320 to limit the positioning structure 640 of the connector 600, thereby indirectly limiting the mating size between the conductor spring 650 of the connector 600 and the conductive part 300 of the battery pack 10, providing effective and reliable structural support to avoid forming a relatively large contact resistance.

[0152] Optionally, the first connecting segment 310 and the base 200 are detachably connected. The connection method between the first connecting segment 310 and the base 200 includes any one or a combination of the following: snap-fit, screw connection, magnetic attraction, and fastening with fasteners (e.g., screws, bolts, or rivets). The detachable connection between the first connecting segment 310 and the base 200 means that the assembly and disassembly of the conductive component 300 and the base 200, as well as the installation position of the conductive component 300 relative to the base 200, can be determined according to actual conditions. This adaptability makes the product suitable for different battery pack models 10, enhancing its versatility and performance.

[0153] In this application, as Figure 2 As shown, the base 200 is provided with a second fixing part 240, and fasteners connect the first connecting section 310 and the second fixing part 240 to make the conductive element 300 and the base 200 securely connected.

[0154] In some embodiments, optionally, such as Figure 2 and Figure 5 As shown, the seat 200 has a second guide portion 220 on the side where the first guide portion 210 is provided.

[0155] The second guide section 220 is located on the side of the second connecting section 320 opposite to the first guide section 210.

[0156] The second connecting section 320 and the second guide section 220 are arranged at intervals to enclose the second receiving groove 500.

[0157] In this embodiment, the structure of the base 200 and the conductive element 300 is further defined.

[0158] Specifically, the seat body 200 is also provided with a second guide portion 220, which is located on the same side of the seat body 200 as the first guide portion 210, and the second guide portion 220 is located on the side of the second connecting section 320 away from the first guide portion 210.

[0159] The second guide portion 220 serves a guiding function. It is used in conjunction with the second mating portion 630 of the connector 600. Specifically, when the battery pack 10 mates with the connector 600 of the battery pack assembly 60, the second guide portion 220 mates with the second mating portion 630 of the connector 600 to guide the battery pack 10 through the blind-mating connection path, simplifying the assembly of the battery pack 10 and the connector 600 and enabling smooth assembly of the battery pack 10 with the connector 600.

[0160] The first guide portion 210, the second guide portion 220, and the conductive element 300 are all disposed on the base body 200. The base body 200 serves as the mounting carrier for the first guide portion 210, the second guide portion 220, and the conductive element 300, and has the function of installing and fixing the first guide portion 210, the second guide portion 220, and the conductive element 300, ensuring the mating dimensions of the first guide portion 210, the second guide portion 220, and the conductive element 300. The first guide portion 210 and the second guide portion 220 both guide the assembly path of the battery body 100, enabling the battery pack 10 to be effectively aligned with the connector 600. They can absorb assembly deviations generated during the installation process of the battery pack 10, and indirectly ensure the mating dimensions of the conductive element 300 and the conductor spring 650 of the connector 600. While ensuring effective electrical connection between the conductive element 300 and the conductor spring 650, they do not form a large contact resistance, which helps to reduce the energy consumption of the product.

[0161] Specifically, when assembling the two battery packs 10 and the connector 600, the two battery packs 10 are pushed toward the connector 600, the first guide portions 210 of the two battery packs 10 are respectively aligned with the plurality of first mating portions 620 of the connector 600, and the second guide portions 220 of the two battery packs 10 are respectively aligned with the plurality of second mating portions 630 of the connector 600, so that the conductive parts 300 of the two battery packs 10 are effectively inserted into the conductor springs 650 of the connector 600, thereby achieving the purpose of electrical connection between the two battery packs 10.

[0162] The second guide portion 220 is located on the side of the second connecting section 320 opposite to the first guide portion 210. The first guide portion 210 and the second guide portion 220 cooperate to limit the mating path of the battery pack 10 and the connector 600 from multiple directions and angles when the battery pack 10 is assembled with the connector 600, so that the battery pack 10 can be smoothly inserted into the connector 600.

[0163] In addition, the second connecting section 320 and the second guide portion 220 are arranged at intervals to enclose the second receiving groove 500. The second receiving groove 500 is used to receive the second protrusion 644 of the connector 600, that is, when the battery pack 10 and the connector 600 are plugged in, the second protrusion 644 of the connector 600 is inserted into the second receiving groove 500.

[0164] This application makes reasonable use of the structure of the first guide portion 210 and the second guide portion 220, so that the first guide portion 210 and the second guide portion 220 not only have a guiding function, but also have the function of forming part of the groove wall of the first receiving groove 400 and part of the groove wall of the second receiving groove 500. The first guide portion 210 and the second connecting section 320 cooperate with each other, and the second guide portion 220 cooperates with the second connecting section 320 to limit the positioning structure 640 of the connector 600, thereby indirectly limiting the mating size of the conductor spring 650 of the connector 600 and the conductive part 300 of the battery pack 10, providing effective and reliable structural support to avoid forming a relatively large contact resistance.

[0165] In some embodiments, optionally, such as Figure 5 As shown, the conductive element 300 also includes a third connecting segment 330.

[0166] The base 200 and the second connecting section 320 are both connected to the third connecting section 330.

[0167] The first guide section 210 is located between the first connecting section 310 and the third connecting section 330.

[0168] In this embodiment, the structure of the conductive element 300 is further defined.

[0169] Specifically, the conductive component 300 also includes a third connecting segment 330, which is connected to the base 200 and the second connecting segment 320, and the first connecting segment 310 and the third connecting segment 330 are arranged at intervals.

[0170] The first guide section 210 is located between the first connecting section 310 and the third connecting section 330. That is, the gap between the first connecting section 310 and the third connecting section 330 is used to avoid the first guide section 210.

[0171] This application rationally designs the structure of the conductive component 300, increasing the connection area between the conductive component 300 and the base 200, thereby ensuring the stability and reliability of the assembly of the conductive component 300 and the base 200.

[0172] Optionally, the third connecting section 330 is detachably connected to the base 200. The connection method between the third connecting section 330 and the base 200 includes any one or a combination of the following: snap-fit, screw connection, magnetic attraction, and fastening with fasteners (e.g., screws, bolts, or rivets). The detachable connection between the third connecting section 330 and the base 200 means that the assembly and disassembly of the conductive component 300 and the base 200, as well as the installation position of the conductive component 300 relative to the base 200, can be determined according to actual conditions. This adaptability makes the product suitable for different battery pack models 10, enhancing its versatility and performance.

[0173] In this application, as Figure 2 As shown, the base 200 is provided with a second fixing part 240, and a fastener connects the third connecting section 330 and the second fixing part 240 to make the conductive element 300 and the base 200 securely connected.

[0174] In some embodiments, optionally, the length of the portion of the first guide portion 210 protruding from the base 200 along the first end face 110 to the second end face 120 is greater than the length of the portion of the conductive element 300 protruding from the base 200.

[0175] In this embodiment, the mating structure of the first guide portion 210, the conductive element 300, and the base 200 is further defined.

[0176] Wherein, along the first end face 110 to the second end face 120, the length of the portion of the first guide portion 210 protruding from the base body 200 is greater than the length of the portion of the conductive element 300 protruding from the base body 200.

[0177] In this way, when assembling the battery pack 10 and the connector 600, the first guide portion 210 contacts the first mating portion 620 of the connector 600 before the conductive member 300, so that the battery pack 10 can be effectively aligned with the connector 600, thereby adjusting the alignment size of the conductive member 300 and the conductor spring 650 of the connector 600, so that the conductive member 300 can be smoothly inserted into the conductor spring 650.

[0178] Optionally, along the first end face 110 to the second end face 120, the length of the portion of the second guide portion 220 protruding from the base body 200 is greater than the length of the portion of the conductive element 300 protruding from the base body 200.

[0179] In some embodiments, the conductive element 300 and the base 200 may be detachably connected.

[0180] In this embodiment, the mating structure of the conductive element 300 and the base 200 is further defined.

[0181] Optionally, the conductive element 300 and the base 200 are detachably connected. The connection method between the conductive element 300 and the base 200 includes any one or a combination of the following: snap-fit, screw connection, magnetic attraction, and fastening with fasteners (e.g., screws, bolts, or rivets). The detachable connection of the conductive element 300 and the base 200 means that the assembly and disassembly of the conductive element 300 and the installation position of the conductive element 300 relative to the base 200 can be determined according to actual conditions, thus adapting to the usage requirements of different battery pack models 10. This enhances the product's adaptability and improves its performance.

[0182] In this application, as Figure 2As shown, the base 200 is provided with a second fixing part 240, and fasteners connect the conductive element 300 and the second fixing part 240 to make the conductive element 300 and the base 200 securely connected.

[0183] In some embodiments, the base 200 may be detachably connected to the battery body 100.

[0184] In this embodiment, the mating structure between the base 200 and the battery body 100 is further defined.

[0185] The base 200 and the battery body 100 are detachably connected. The connection method between the base 200 and the battery body 100 includes any one or a combination of the following: snap-fit, screw connection, magnetic attraction, and fastening connection by fasteners (such as screws, bolts, or rivets). The detachable connection between the base 200 and the battery body 100 means that the assembly and disassembly of the base 200 and the installation position of the base 200 relative to the battery body 100 can be determined according to the actual situation. This adaptability makes the product suitable for different models of battery packs 10, enhancing its versatility and performance.

[0186] In this application, as Figure 2 As shown, the base 200 is provided with a first fixing part 230, and the fastener passes through the first fixing part 230 and locks into the battery body 100 so that the base 200 and the battery body 100 are securely connected.

[0187] In some other embodiments, the base 200 is integrally connected to the housing 130 of the battery body 100. This structural arrangement eliminates the assembly process between the base 200 and the housing 130 of the battery body 100, thus simplifying the assembly and subsequent disassembly processes, improving assembly and disassembly efficiency, and consequently reducing production and maintenance costs. Furthermore, the integral connection between the base 200 and the housing 130 of the battery body 100 ensures the dimensional accuracy requirements of the battery pack 10.

[0188] In some embodiments, optionally, such as Figure 6 As shown, the battery body 100 also includes a housing 130 and a plurality of battery cells 140.

[0189] The housing 130 has a first end face 110 and a second end face 120.

[0190] Multiple battery cells 140 are located inside the housing 130.

[0191] Multiple battery cells 140 are arranged along the direction from the first end face 110 to the second end face 120.

[0192] Each cell 140 includes a positive electrode portion 142 and a negative electrode portion 144.

[0193] In any two adjacent cells 140, the negative electrode portion 144 of one cell 140 is electrically connected to the positive electrode portion 142 of the other cell 140.

[0194] Of the two outermost cells 140, the positive electrode 142 of one cell 140 is connected to one of the conductor 190 and the interface 112, and the negative electrode 144 of the other cell 140 is connected to the other of the conductor 190 and the interface 112.

[0195] In this embodiment, the structure of the battery body 100 is further defined.

[0196] The battery body 100 also includes a housing 130 and multiple battery cells 140.

[0197] Multiple battery cells 140 are located within the housing 130. The multiple battery cells 140 are arranged along a direction from a first end face 110 to a second end face 120. Any one of the multiple battery cells 140 includes a positive electrode portion 142 and a negative electrode portion 144.

[0198] In any two adjacent cells 140, the negative electrode portion 144 of one cell 140 is electrically connected to the positive electrode portion 142 of the other cell 140.

[0199] Of the two outermost battery cells 140, the positive terminal 142 of one cell 140 is connected to either the conductor 190 or the interface 112, and the negative terminal 144 of the other cell 140 is connected to the other conductor 190 or the interface 112. That is, of the two outermost battery cells 140, the positive terminal 142 of one cell 140 is electrically connected to the conductor 190, and the negative terminal 144 of the other cell 140 is connected to the interface 112. Alternatively, of the two outermost battery cells 140, the negative terminal 144 of one cell 140 is electrically connected to the conductor 190, and the positive terminal 142 of the other cell 140 is connected to the interface 112.

[0200] The housing 130 securely holds together multiple battery cells 140, which are stacked sequentially along the direction from the first end face 110 to the second end face 120. The multiple battery cells 140 are connected in series with positive and negative terminals.

[0201] Optionally, cell 140 includes blade cells.

[0202] Optionally, the housing 130 includes an upper housing 150, a lower housing 160, a first end plate 170, and a second end plate 180. The upper housing 150 and the lower housing 160 are connected, the first end plate 170 is connected to a first side of the upper housing 150 and the lower housing 160, and the second end plate 180 is connected to a second side of the upper housing 150 and the lower housing 160. The first end plate 170 has a first end face 110, and the second end plate 180 has a second end face 120.

[0203] The first end plate 170 and the second end plate 180 have the function of resisting the expansion force of the battery cell 140. The first end plate 170 and the second end plate 180, together with the upper shell 150 and the lower shell 160, form a complete frame to firmly bind the multiple battery cells 140 within it.

[0204] like Figure 1 , Figure 3 and Figure 4 As shown, a battery pack 60 according to some embodiments of the present application includes two battery packs 10 as described in any of the above embodiments and a connector 600.

[0205] One battery pack 10 has a positive terminal interface 112, and the other battery pack 10 has a negative terminal interface 112.

[0206] The conductive parts 300 of the two battery packs 10 are detachably electrically connected via connectors 600.

[0207] The battery pack assembly 60 provided in this application includes two battery packs 10 and a connector 600. Either battery pack 10 is detachably connected to the connector 600, and the conductive parts 300 of the two battery packs 10 are detachably electrically connected through the connector 600.

[0208] Specifically, when assembling two battery packs 10 and connector 600, the conductive parts 300 of the two battery packs 10 are positioned opposite to the connector 600, and the interfaces 112 of the two battery packs 10 are positioned away from the conductor springs 650. The two battery packs 10 are pushed towards the connector 600 so that the conductive parts 300 of the two battery packs 10 are detachably electrically connected through the connector 600. That is, the positive terminal of one battery pack 10 is connected to the negative terminal of the other battery pack 10 through the connector 600. This reduces the material input for the cables used to install the two battery packs 10, lowers the production cost of the product, and also shortens the connection path between the two battery packs 10, reduces the resistance of the internal circuit of the battery pack assembly 60, improves the energy efficiency of the system, reduces the internal space occupancy of the energy storage system 70, and facilitates the installation and arrangement of other components (such as communication cables, liquid cooling pipes, etc.).

[0209] In some embodiments, optionally, such as Figure 5 and Figure 7 As shown, the connector 600 includes a connecting portion 660, a plurality of first mating portions 620, a plurality of second mating portions 630, and two positioning structures 640.

[0210] Each first mating part 620 is detachably connected to a first guide part of a battery pack 10.

[0211] Each second mating part 630 is detachably connected to a second guide part of a battery pack 10.

[0212] Multiple first mating parts 620, multiple second mating parts 630 and two positioning structures 640 are located on the same side of the connecting plate 610.

[0213] The positioning structure 640 is provided with a conductor spring 650, and the conductor spring 650 is provided with a conductive groove 652. A conductive component 300 of a battery pack 10 is inserted into each conductive groove 652.

[0214] In this embodiment, the structure of connector 600 is further defined.

[0215] The connector 600 includes a connecting part 660, a plurality of first mating parts 620, a plurality of second mating parts 630, and two positioning structures 640.

[0216] Multiple first mating parts 620, multiple second mating parts 630 and two positioning structures 640 are located on the same side of the connecting plate 610.

[0217] Each positioning structure 640 mates with a battery pack 10. Specifically, a conductive element 300 of a battery pack 10 is inserted into each conductive groove 652.

[0218] Each first mating part 620 is detachably connected to a first guide part of a battery pack 10, and each second mating part 630 is detachably connected to a second guide part of a battery pack 10.

[0219] When assembling two battery packs 10 and connectors 600, the conductive element 300 of one battery pack 10 is positioned opposite to the conductor spring 650 of a positioning structure 640, and the conductive element 300 of the other battery pack 10 is positioned opposite to the conductor spring 650 of another positioning structure 640. The interface 112 of one battery pack 10 is positioned away from the connector 600, and the interface 112 of the other battery pack 10 is positioned away from the connector 600. The first guide portions 210 of the two battery packs 10 are respectively aligned with a plurality of first mating portions 620 of the connector 600, and the second guide portions 220 of the two battery packs 10 are respectively aligned with a plurality of second mating portions 630 of the connector 600, so that the conductive elements 300 of the two battery packs 10 can be effectively inserted into the conductive grooves 652 of the two conductor springs 650 of the connector 600, achieving the purpose of electrical connection between the two battery packs 10. In one battery pack 10, interface 112 is the positive terminal interface and conductive component 300 is the negative terminal conductive component; in the other battery pack 10, interface 112 is the negative terminal interface and conductive component 300 is the positive terminal conductive component.

[0220] It is understandable that the conductive groove 652 of the conductor spring 650 has the function of accommodating the conductive element 300 and being electrically connected to the conductive element 300.

[0221] In some embodiments, optionally, one of the first guide portion 210 and the first mating portion 620 is a guide post and the other is a guide cylinder.

[0222] One of the second guide section 220 and the second mating section 630 is a guide post, and the other is a guide cylinder.

[0223] The guide post is inserted into the guide cylinder.

[0224] In this embodiment, the structures of the first guide portion 210, the first mating portion 620, the second guide portion 220, and the second mating portion 630 are further defined.

[0225] One of the first guide portion 210 and the first mating portion 620 is a guide post, and the other is a guide cylinder. That is, the first guide portion 210 is a guide post, and the first mating portion 620 is a guide cylinder. Alternatively, the first guide post is a guide cylinder, and the first mating portion 620 is a guide post.

[0226] One of the second guide portion 220 and the second mating portion 630 is a guide post, and the other is a guide cylinder. That is, the second guide portion 220 is a guide post, and the second mating portion 630 is a guide cylinder. Alternatively, the second guide post is a guide cylinder, and the second mating portion 630 is a guide post.

[0227] The guide post can be inserted into the guide cylinder. The cooperation between the guide post and the guide cylinder can absorb the assembly deviation generated during the installation of the battery pack 10, and can indirectly ensure the mating dimensions of the conductive part 300 and the conductor spring 650 of the connector 600. While ensuring effective electrical connection between the conductive part 300 and the conductor spring 650, a relatively large contact resistance will not be formed, which helps to reduce the energy consumption of the product.

[0228] In some embodiments, optionally, the outer diameter of the end of the guide post gradually decreases along the connecting plate 610 to the guide post.

[0229] In this embodiment, the structure of the guide post is further defined such that the outer diameter of the end of the guide post gradually decreases from the connecting plate 610 to the guide post. That is, the end of the guide post has a gradually decreasing cross-section, allowing the guide post to be smoothly inserted into the guide cylinder. This design reduces the assembly difficulty of the two battery packs 10 and the connector 600, thus improving the product's assembly efficiency.

[0230] In some embodiments, optionally, such as Figure 2 , Figure 5 and Figure 7 As shown, the positioning structure 640 includes a first protrusion 642 and a second protrusion 644.

[0231] The first protrusion 642 and the second protrusion 644 are arranged at intervals.

[0232] The conductor spring 650 is connected between the first protrusion 642 and the second protrusion 644.

[0233] The first protrusion 642 is inserted into the first receiving slot 400 of the battery pack 10.

[0234] The second protrusion 644 is inserted into the second receiving slot 500 of the battery pack 10.

[0235] In this embodiment, the specific structure of the positioning structure 640 is further defined.

[0236] The positioning structure 640 includes a first protrusion 642 and a second protrusion 644, which are arranged at intervals. The first protrusion 642, the second protrusion 644 and the connecting plate 610 enclose a space for accommodating the conductor spring 650.

[0237] The conductor spring 650 is connected between the first protrusion 642 and the second protrusion 644. When assembling the battery pack 10 and the connector 600, the first protrusion 642 is inserted into the first receiving groove 400 of the battery pack 10, and the second protrusion 644 is inserted into the second receiving groove 500 of the battery pack 10.

[0238] The first protrusion 642, the first receiving groove 400, the second protrusion 644, and the second receiving groove 500 cooperate to effectively limit the mating dimensions of the battery pack 10 and the connector 600. This ensures the mating dimensions of the conductive element 300 and the conductor spring 650 of the connector 600, guaranteeing effective electrical connection between the conductive element 300 and the conductor spring 650 while preventing excessive contact resistance, thus reducing the product's energy consumption.

[0239] In some embodiments, optionally, such as Figure 7 As shown, the connecting plate 610 is provided with multiple connecting parts 660, which are used for the installation and positioning of the connecting plate 610.

[0240] In this embodiment, the structure of the connecting plate 610 is further defined.

[0241] Specifically, the connecting plate 610 is provided with a plurality of connecting parts 660, which are used for the installation and positioning of the connecting plate 610.

[0242] The connecting part 660 is used to cooperate with the second support beam group 720 of the energy storage system 70 so that the connector 600 is assembled on the cluster frame 700, so that the two battery packs 10 can be effectively aligned and plugged into the connector 600.

[0243] Optionally, the connecting part 660 includes a connecting hole through which a fastener passes and locks into the second support beam assembly 720.

[0244] like Figure 1 and Figure 3As shown, an energy storage system 70 according to some embodiments of the present application includes: a cluster rack 700; and at least one battery pack 60 of any of the above embodiments, the battery pack 60 being detachably disposed on the cluster rack 700.

[0245] The energy storage system 70 provided in this application includes a cluster frame 700 and at least one battery pack 60 as described in any of the above embodiments. Since the energy storage system 70 includes the battery pack 60 as described in any of the above embodiments, it has all the beneficial effects of the battery pack 60, which will not be described in detail here.

[0246] In some embodiments, optionally, such as Figure 1 and Figure 3 As shown, the cluster frame 700 includes a plurality of first support beam groups 710 and at least one second support beam group 720.

[0247] Multiple first support beam groups 710 are arranged at intervals along the first direction.

[0248] A second support beam group 720 is provided between any two adjacent first support beam groups 710.

[0249] The connector 600's connecting part 660 is detachably connected to the second support beam assembly 720.

[0250] Each first support beam group 710 and each second support beam group 720 is provided with multiple supporting beams 730.

[0251] Multiple supporting beams 730 are arranged at intervals along the second direction.

[0252] Each supporting beam 730 extends along a third direction.

[0253] A battery pack 60 is provided between two adjacent first support beam groups 710, and the battery pack 10 is erected on the supporting beam 730.

[0254] In this embodiment, the cluster frame 700 includes a plurality of first support beam groups 710 and at least one second support beam group 720.

[0255] Multiple first support beam groups 710 are arranged at intervals along a first direction, and a second support beam group 720 is provided between any two adjacent first support beam groups 710.

[0256] The connector 600's connecting part 660 is detachably connected to the second support beam assembly 720.

[0257] Each first support beam group 710 is provided with multiple support beams 730, the multiple support beams 730 are arranged at intervals along the second direction, and each support beam 730 extends along the third direction.

[0258] Each second support beam group 720 is provided with multiple support beams 730, which are arranged at intervals along the second direction, and each support beam 730 extends along the third direction.

[0259] The support beam 730 serves to support and fix the battery pack 10.

[0260] Optionally, the second support beam assembly 720 includes a fixed bracket 740 for connection with the connection portion 660 of the connector 600.

[0261] Specifically, the connecting part 660 of the connector 600 is fixedly connected to the fixed bracket 740 on the cluster frame 700, and the two battery packs 10 of the battery pack group 60 are placed on the supporting beams 730 of the first support beam group 710 and the second support beam group 720. The two battery packs 10 are pushed toward the connector 600, so that the conductive parts 300 of the two battery packs 10 are respectively inserted into the two conductive grooves 652 of the connector 600, so as to achieve the purpose of electrically connecting the two battery packs 10 through the connector 600.

[0262] In this application, the battery pack 60 includes two battery packs 10 and a connector 600. The positive and negative terminals of the battery packs 10 can be connected in series with minimal distance. Each battery pack 10 includes a conductive element 300, which is electrically connected to the conductor spring 650 of the connector 600.

[0263] Battery pack 10 is mounted on cluster rack 700. The guide post of connector 600 and the guide cylinder of battery pack 10 form a hole-shaft fit within small design tolerances. The conductive element 300 of battery pack 10 (e.g., conductive copper plate) and the conductor spring 650 of connector 600 make reliable contact. The positive terminal of the first battery pack 10 and the negative terminal of the second battery pack 10 are connected through connector 600. During the installation of battery pack 10 to cluster rack 700, the output connection between battery pack 10 is realized, simplifying the cable installation steps, shortening the connection path between battery pack 10, and reducing the resistance of the internal circuit of energy storage system 70.

[0264] This application rationally designs the structure of the battery pack 10, reduces the number of cables connected in series with the battery pack 10 in the energy storage system 70, reduces the amount of internal conductor material used in the battery pack 10, and can reduce the production cost of the energy storage system 70.

[0265] In this application, the connection path between the battery packs 10 is the shortest and is connected by copper busbars, which reduces the internal resistance of the internal circuit of the energy storage system 70 and improves the energy efficiency of the energy storage system 70.

[0266] In this application, the interface 112 of the battery pack 10 can be quickly connected, reducing the workload of on-site cable installation and lowering labor costs.

[0267] In this application, the space required for cable wiring within the energy storage system 70 is reduced, which facilitates the installation and layout of other components (such as communication cables and liquid cooling pipelines).

[0268] The energy storage system 70 of this application includes a cluster rack 700 and at least one battery pack group 60. The battery pack group 60 includes two battery packs 10 and a connector 600.

[0269] The frame 700 includes a plurality of first support beam groups 710 and at least one second support beam group 720. Each first support beam group 710 and each second support beam group 720 is provided with a plurality of supporting beams 730. The second support beam group 720 also includes a fixing bracket 740.

[0270] As attached Figure 1 As shown, two battery packs 10 are mounted on the cluster frame 700. The battery packs 10 are mounted on the support beam 730 of the cluster frame 700, with only the main negative interface of one battery pack 10 and the main positive interface of the other battery pack 10 exposed.

[0271] The connector 600 is fixed to the fixing bracket 740 on the cluster 700 via the connecting part 660. The battery pack 10 includes multiple blade cells stacked sequentially, with the multiple blade cells connected in series with positive and negative terminals. The first end plate 170 and the second end plate 180 of the housing 130 are used to resist the expansion force of the cell 140. The first end plate 170 and the second end plate 180, together with the upper shell 150 and the lower shell 160 of the housing 130, form a complete frame to firmly restrain the blade cells within it.

[0272] A base 200 is provided on the back of the battery pack 10. The base 200 has a first guide portion 210, a first fixing portion 230, and a second fixing portion 240. Fasteners pass through the first fixing portion 230 and are fixed to the first end plate 170. The base 200 is used to fix the conductor 190 and the conductive element 300. The conductor 190 and the conductive element 300 are fixed together by the fasteners through the second fixing portion 240, so that the conductor 190 and the conductive element 300 are reliably electrically connected. During the process of pushing the battery pack 10 into the cluster 700, the guide post of the connector 600 first contacts the guide cylinder of the base 200, and then the conductor spring 650 of the connector 600 contacts the conductive element 300 (e.g., conductive copper plate) of the battery pack 10 to form a circuit connection. On the one hand, the conductor spring 650 can deform to absorb a certain tolerance. On the other hand, the top of the guide post has a gradient cross-section design. The guide post of connector 600 and the guide cylinder of battery pack 10 form a hole-shaft fit within a small design tolerance. This can absorb assembly deviations during the installation of battery pack 10, ensuring a tight fit between connector 600 and the conductive copper plate of battery pack 10 without creating significant contact resistance. After installation, the positive terminal of one battery pack 10 and the negative terminal of another battery pack 10 are connected through connector 600, realizing series circuit connection of battery pack 10.

[0273] The battery pack 10 includes a battery body 100, a base 200, and a conductive element 300.

[0274] The battery body 100 has a first end face 110 and a second end face 120, which are arranged opposite to each other and spaced apart. The first end face 110 is provided with an interface 112. At least a portion of a conductive member 300 protrudes from the second end face 120, and the conductive member 300 is electrically connected to the battery body 100. That is, the interface 112 and the conductive member 300 are located on different sides of the battery body 100.

[0275] A base 200 is disposed on the second end face 120, and the base 200 is provided with a first guide portion 210, which has a guiding function. The battery pack 10 is used in the battery pack assembly 60, which includes a connector 600. The first guide portion 210 is used to cooperate with the first mating portion 620 of the connector 600. Specifically, when the battery pack 10 mates with the connector 600 of the battery pack assembly 600, the first guide portion 210 cooperates with the first mating portion 620 of the connector 600 to guide the battery pack 10 into the blind-mating connection path, simplifying the assembly difficulty of the battery pack 10 and the connector 600, and enabling the battery pack 10 to be smoothly assembled with the connector 600.

[0276] Furthermore, a conductive element 300 is disposed on the base 200, and the conductive element 300 is electrically connected to the battery body 100, with at least a portion of the conductive element 300 protruding from the side of the base 200 opposite to the second end face 120. The conductive element 300 is used to cooperate with the conductor spring 650 of the connector 600 to electrically connect the battery pack 10 to the connector 600.

[0277] Furthermore, both the first guide portion 210 and the conductive element 300 are disposed on the base 200. The base 200 serves as the mounting carrier for the first guide portion 210 and the conductive element 300, and has the function of installing and fixing the first guide portion 210 and the conductive element 300, ensuring the mating dimensions of the first guide portion 210 and the guide element. The first guide portion 210 guides the assembly path of the battery body 100, enabling the battery pack 10 to be effectively aligned with the connector 600. It can absorb assembly deviations generated during the installation process of the battery pack 10, and indirectly ensure the mating dimensions of the conductive element 300 and the conductor spring 650 of the connector 600. While ensuring effective electrical connection between the conductive element 300 and the conductor spring 650, it does not form a relatively large contact resistance, which helps to reduce the energy consumption of the product.

[0278] The energy storage system 70 includes at least one battery pack group 60, each battery pack group 60 including two battery packs 10 and a connector 600, the two battery packs 10 being electrically connected via the connector 600.

[0279] Specifically, when assembling two battery packs 10 and connector 600, the conductive elements 300 of the two battery packs 10 are positioned opposite to the conductor springs 650 of the connector 600, and the interfaces 112 of the two battery packs 10 are positioned away from the conductor springs 650. When the two battery packs 10 are pushed towards the connector 600, the first guide portions 210 of the two battery packs 10 are aligned with the plurality of first mating portions 620 of the connector 600, so that the conductive elements 300 of the two battery packs 10 are effectively inserted into the conductor springs 650 of the connector 600, achieving the purpose of electrical connection between the two battery packs 10. In one battery pack 10, the interface 112 is the positive terminal and the conductive element 300 is the negative terminal; in the other battery pack 10, the interface 112 is the negative terminal and the conductive element 300 is the positive terminal.

[0280] In other words, two adjacent battery packs 10 are electrically connected via connector 600. This arrangement achieves series connection of the positive and negative terminals of the two battery packs 10 over the shortest possible distance. Each battery pack 10 is designed with a first guide portion 210 that mates with the first mating portion 620 of connector 600, and a conductive element 300 that mates with the conductor spring 650 of connector 600. The positive terminal of one battery pack 10 is connected to the negative terminal of the other battery pack 10 via connector 600. This reduces the material input for the cables used to install the two battery packs 10, lowering production costs. Furthermore, this arrangement shortens the connection path between the two battery packs 10, reduces the resistance of the internal circuits of the battery pack group 60, improves system energy efficiency, reduces the internal space occupancy of the energy storage system 70, and facilitates the installation and arrangement of other components (such as communication cables, liquid cooling pipes, etc.).

[0281] In this application, the term "multiple" refers to two or more unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0282] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery pack assembly, characterized in that, Includes two battery packs and connectors, the battery packs comprising battery bodies, housings, and conductive components: The battery body has a first end face and a second end face that are disposed opposite to each other, and the first end face is provided with an interface; The base is disposed on the second end face, and the base is provided with a first guide portion; The conductive element is disposed on the base body, the conductive element is electrically connected to the battery body, and at least a portion of the conductive element protrudes from the side of the base body away from the second end face; The interface is a positive interface, and the conductive component is a negative conductive component; or The interface is a negative interface, and the conductive component is a positive conductive component; The conductive component includes a first connecting segment and a second connecting segment; The first connecting segment is connected to the base body; The second connecting segment is connected to the first connecting segment; The seat body is provided with a second guide portion on the side where the first guide portion is provided. The second guide portion is located on the side of the second connecting section opposite to the first guide portion. The second connecting section and the second guide portion are arranged at intervals to enclose a second receiving groove. The second receiving groove is used to receive the second protrusion of the connector. One of the battery packs has a positive terminal interface, and the other battery pack has a negative terminal interface; The conductive components of the two battery packs are detachably electrically connected via the connector; The connector includes a connecting plate, multiple first mating parts, multiple second mating parts, and two positioning structures: Each of the first mating parts is detachably connected to a first guide part of one of the battery packs; Each of the second mating parts is detachably connected to a second guide part of one of the battery packs; Multiple first mating parts, multiple second mating parts, and two positioning structures are located on the same side of the connecting plate. The positioning structure is provided with a conductor spring, and the conductor spring is provided with a conductive groove. A conductive component of the battery pack is inserted into each conductive groove.

2. The battery pack according to claim 1, characterized in that, The first guide portion and the conductive element are both located on the side of the base body away from the second end face. The battery body includes a conductive body, a portion of which protrudes from the second end face and is connected to the conductive element.

3. The battery pack according to claim 2, characterized in that, The first connecting segment is located on one side of the first guide portion, and the first connecting segment is electrically connected to the conductor; The second connecting segment extends in a direction away from the seat body, and the second connecting segment and the first guide portion are arranged at intervals to enclose the first receiving groove.

4. The battery pack according to claim 3, characterized in that, The conductive element further includes: The third connecting segment is connected to both the base and the second connecting segment, and the first guide portion is located between the first connecting segment and the third connecting segment.

5. The battery pack according to claim 2, characterized in that, Along the first end face to the second end face, the length of the portion of the first guide portion protruding from the base body is greater than the length of the portion of the conductive element protruding from the base body.

6. The battery pack according to any one of claims 1 to 5, characterized in that, The conductive element and the base are detachably connected; and / or The base and the battery body are detachably connected.

7. The battery pack according to any one of claims 2 to 5, characterized in that, The battery body also includes: A housing having a first end face and a second end face; Multiple battery cells are located inside the housing. The multiple battery cells are arranged along the direction from the first end face to the second end face. Each battery cell includes a positive electrode portion and a negative electrode portion. In any two adjacent battery cells, the negative electrode portion of one battery cell is electrically connected to the positive electrode portion of the other battery cell. Of the two outermost battery cells, the positive terminal of one battery cell is connected to either the conductor or the interface, and the negative terminal of the other battery cell is connected to either the conductor or the interface.

8. The battery pack according to claim 1, characterized in that, One of the first guide portion and the first mating portion is a guide post, and the other is a guide cylinder; One of the second guide portion and the second mating portion is a guide post, and the other is a guide cylinder; The guide post is inserted into the guide cylinder.

9. The battery pack according to claim 8, characterized in that, Along the connecting plate to the guide post, the outer diameter of the end of the guide post gradually decreases.

10. The battery pack according to claim 1, characterized in that, The positioning structure includes: first convex part; The second protrusion is arranged at a distance from the first protrusion. The conductor spring is connected between the first protrusion and the second protrusion. The first protrusion is inserted into the first receiving groove of the battery pack, and the second protrusion is inserted into the second receiving groove of the battery pack.

11. The battery pack according to claim 1, characterized in that, The connecting plate is provided with multiple connecting parts, which are used for the installation and positioning of the connecting plate.

12. An energy storage system, characterized in that, include: Cluster frame; and At least one battery pack assembly as claimed in any one of claims 1 to 11, wherein the battery pack assembly is detachably disposed on the cluster frame.

13. The energy storage system according to claim 12, characterized in that, The cluster frame includes: Multiple first support beam groups are arranged at intervals along a first direction; At least one second support beam group is provided, and a second support beam group is provided between any two adjacent first support beam groups. The connecting part of the connector is detachably connected to the second support beam group. Each of the first support beam group and each of the second support beam groups is provided with a plurality of support beams, the plurality of support beams being arranged at intervals along the second direction, and each support beam extending along the third direction; The first direction, the second direction, and the third direction are perpendicular to each other; A battery pack group is provided between two adjacent first support beam groups, and the battery pack is mounted on the supporting beam.

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