A battery pack

Abstract

The utility model belongs to the battery field, concretely is a kind of battery pack.The battery pack includes support frame, multiple battery components and at least one group of fixed components;Multiple battery components are sequentially arranged in support frame along x direction, each battery component includes shell and multiple single batteries arranged in shell along y direction, and both ends of shell are respectively provided with mounting block;Fixed component includes two mounting seats, two mounting seats are fixedly connected with the edge beam opposite to support frame respectively, each mounting seat has support battery component's support plate and is used for the limiting hole for battery component mounting block to pass through;The end of battery component is located on the support plate of two mounting seats respectively, and the mounting block of battery component shell respectively passes through the limiting hole on mounting seat, to make mounting seat fix each battery component on support frame.

Description

Technical Field

[0001] This utility model belongs to the field of batteries, specifically a battery pack. Background Technology

[0002] Currently, with the continuous growth of global energy demand and the increasing awareness of environmental protection, energy storage technology has gradually become one of the important means to solve energy problems.

[0003] Energy storage devices are widely used in power systems, transportation, aerospace, and other fields due to their advantages such as portability, flexibility, and high efficiency. Existing energy storage devices on the market consist of a housing, a support frame inside the housing, and multiple battery components fixed to the support frame. During the use of these battery components, their installation and stability are crucial; reliably securing multiple battery components to the support frame is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This invention provides a battery pack in which a fixing component can reliably fix the battery components to a support frame, thereby improving the structural stability of the battery pack.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] The battery pack provided by this utility model includes a support frame, N battery components, and at least one set of fixing components, wherein N is greater than or equal to 1; the N battery components are arranged sequentially in the support frame along the x-direction, each battery component includes a shell and multiple individual batteries arranged in the shell along the y-direction, and mounting blocks are respectively provided on the two end plates of the shell, each end plate being parallel to the xz plane; the fixing components include two mounting seats, which are respectively fixedly connected to the side beams extending along the x-direction of the support frame, and each mounting seat has a support plate for supporting the battery components and M limiting holes for the mounting blocks of the battery components to pass through, wherein M is greater than or equal to 1; the two ends of the battery components are respectively located on the support plates of the two mounting seats, and the mounting blocks of the battery component shells pass through the limiting holes on each mounting seat, so that the mounting seats fix each battery component on the support frame.

[0007] Furthermore, limiting plates are provided on both sides of the mounting base, and the end face of each limiting plate is parallel to the yz plane, which is used to limit the battery component in the x direction.

[0008] Furthermore, the fixing assembly also includes a protective plate located between the battery component and the mounting base. The protective plate is an L-shaped plate made of insulating material. The vertical plate of the L-shaped plate has M limiting protrusions, and each limiting protrusion has a limiting groove. The mounting block of the battery component is embedded in the limiting groove, and the limiting protrusion passes through the limiting hole on the mounting base.

[0009] Furthermore, in the fixing assembly, one mounting base is connected to the support frame via a first connecting assembly, and the other mounting base is connected to the support frame via a second connecting assembly; the first connecting assembly includes a first pin connecting seat disposed on the mounting base and a second pin connecting seat disposed on the support frame, and the first pin connecting seat and the second pin connecting seat are connected by a pin.

[0010] Furthermore, the second connecting assembly includes a connecting plate disposed on the mounting base, the connecting plate having a U-shaped connecting hole, and a connecting bolt passing through the U-shaped connecting hole of the connecting plate to connect with the support frame.

[0011] Furthermore, multiple battery components share a set of fixing components.

[0012] Furthermore, the support frame is a rectangular frame, mainly composed of two first side beams and two second side beams connected together. The first side beams extend along the x-direction and are made of square steel. The bottom end of the square steel has a notch, and a roller is installed in the notch. The second side beams extend along the y-direction and are made of square steel.

[0013] Furthermore, the outer casing has a shared chamber; the inner cavity of the shared chamber is connected to the inner cavity of all individual cells; the top plate of the outer casing has clearance holes corresponding to the polarity terminals of each individual cell; the polarity terminals of each individual cell extend out of the clearance holes, and the area of ​​the top plate of the outer casing corresponding to the clearance holes is fixedly sealed to the individual cell casing.

[0014] Furthermore, the outer casing is provided with a venting pipe assembly that communicates with the shared chamber, and the venting pipe assemblies of adjacent battery components are connected by pipelines to form a venting manifold.

[0015] Furthermore, each individual cell's polar terminal is provided with a heat transfer tube extending out of the outer casing. The heat transfer tube exchanges heat with the polar terminal of each individual cell. An insulating sealant layer is laid on the top of the outer casing, and at least part of the structure of the polar terminal and the heat transfer tube is located within the insulating sealant layer.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. The support frame and fixing components in the battery pack of this utility model can reliably install each battery component. Each battery component has a mounting block on its outer shell end plate, and each battery component is supported by a support plate of the mounting base. The mounting blocks on the outer shell of each battery component pass through limiting holes on each mounting base. In the z and y directions, the mounting base limits and fixes the battery components, thereby securing each battery component to the support frame. This installation method ensures the stability of the battery components on the support frame during battery pack movement, enabling reliable operation of each battery component. Especially when applied in mobile charging vehicles, the battery components maintain a relatively stable position during movement, preventing movement or tilting, and ensuring stable operation. Particularly in complex road conditions, the support frame and fixing components provide continuous stable support and reliable installation for the battery components, protecting the internal structure and related connections of the battery components, preventing shaking and bumping, and ensuring normal operation of the battery components.

[0018] 2. In the battery pack of this utility model, limiting plates are provided on both sides of the mounting base. The end face of each limiting plate is parallel to the yz plane. Each limiting plate is used to limit each battery component in the x direction, thereby realizing the installation and fixation of the battery components in multiple directions and further improving the installation reliability of the battery components.

[0019] 3. In the battery pack of this utility model, the fixing component also includes a protective plate made of insulating material. The protective plate is located between the battery component and the mounting base to protect the mounting block of the battery component and avoid unreliable installation caused by the detachment of the mounting block. At the same time, the protective plate is set between the battery component and the mounting base to ensure that the outer shell of each battery component does not contact the mounting base or the support frame, thereby achieving insulation performance between the battery component and the support base and improving the safety of the battery component during operation.

[0020] 4. In this battery pack, the mounting base on one side of the battery component is connected to the support frame via a pin connection assembly. This connection method facilitates the installation and positioning of the battery component. After the mounting base and the support frame are hinged, the positions of the hinged mounting base and the battery component are relatively fixed, achieving positioning of the hinged side of the battery component. Subsequently, only the position of the mounting base on the other side needs to be adjusted to achieve positioning of the entire battery component in the y-direction, avoiding the problem of needing to adjust the mounting bases at both ends of the battery component simultaneously for positioning. At the same time, using a hinge reduces the number of bolts used, improves the reliability of the connection, and avoids problems such as loosening and lower reliability caused by using more bolts. In addition, the installation and disassembly of the pin connection assembly are also relatively convenient.

[0021] 5. In the battery pack of this utility model, the second connecting component is a connecting plate mounted on the mounting base, and the connecting hole for connecting the connecting plate and the connecting bolt is a U-shaped connecting hole. During actual assembly, the U-shaped connecting hole allows adjustment of the mounting position of the connecting plate in the y-direction to compensate for installation errors between the mounting base and the support frame, ensuring the reliability of the connection.

[0022] 6. In the battery pack of this utility model, multiple battery components share a set of fixing components. This installation method not only facilitates the installation of multiple battery components, but also simplifies the installation steps and saves installation time.

[0023] 7. In this utility model battery pack, the support frame is a rectangular frame, mainly composed of two first side beams and two second side beams connected together. Compared with other support structures, the rectangular frame support structure is relatively stable and easier to manufacture. Rollers are provided at the bottom of the two first side beams to facilitate the installation and disassembly of the battery pack.

[0024] 8. In the battery pack of this utility model, the battery component places multiple individual batteries in a shell with a shared chamber. The shared chamber is connected to the inner cavity of each individual battery located in the shell, which reduces the differences between individual batteries and improves the consistency between individual batteries to a certain extent, thereby improving the cycle life of the battery component to a certain extent.

[0025] 9. In the battery pack of this utility model, a heat transfer tube is connected to the part of the polar terminal of each individual battery that extends out of the outer shell. The heat transfer tube exchanges heat with the polar terminal of each individual battery. A heat transfer medium flows inside the heat transfer tube. By controlling the temperature of the heat transfer medium, it can be ensured that the battery components always operate at the normal operating temperature.

[0026] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the battery pack structure in Example 1. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the battery pack structure in Example 1. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the battery component and fixing assembly in Example 1. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the battery component and fixing assembly in Example 1. Figure 2 ;

[0031] Figure 5 This is an exploded view of the battery component and the fixing assembly in Example 1;

[0032] Figure 6 This is a schematic diagram of the mounting base in Example 1. Figure 1 ;

[0033] Figure 7 This is a schematic diagram of the mounting base in Example 1. Figure 2 ;

[0034] Figure 8 This is a schematic diagram of the support frame in Example 1;

[0035] Figure 9 This is a schematic diagram of the protective plate in Example 1. Figure 1 ;

[0036] Figure 10 This is a schematic diagram of the protective plate in Example 1. Figure 2 ;

[0037] Figure 11 This is a schematic diagram of the battery component in Example 2.

[0038] Reference numerals: 1-Support frame, 2-Battery component, 3-Fixing assembly, 4-Explosion relief manifold, 5-Heat transfer pipe, 21-Outer shell, 22-Single battery, 23-Protective outer shell, 11-First side beam, 12-Second side beam, 211-Mounting block, 221-Polar terminal, 31-Mounting base, 32-Protective plate, 33-First connecting assembly, 34-Second connecting assembly, 311-Support plate, 312-Limiting hole, 313-Limiting plate, 321-Limiting protrusion, 322-Limiting groove, 323-Side plate, 331-First pin connecting seat, 332-Second pin connecting seat, 341-Connecting plate, 342-U-shaped connecting hole, 343-Connecting bolt. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0040] The phrase "other embodiments" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0041] In this specification, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate component, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, in the description of this utility model, it should be noted that the terms "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] This utility model provides a battery pack comprising N battery components, where N is greater than or equal to 1. These battery components can be existing battery packs or high-capacity batteries. The battery pack described here can consist of a casing and multiple individual cells connected in parallel or series within the casing. The high-capacity battery described here is a battery composed of multiple individual cells connected in parallel with a shared electrolyte system. The structure of this high-capacity battery is detailed in the high-capacity battery structures disclosed in CN220797038U, CN117878492A, CN220324596U, CN118299739A, CN220324640U, and CN118800999A.

[0044] To facilitate the installation of multiple battery components, CN118659085A discloses a battery pack bracket assembly. This bracket assembly mainly consists of a support member and two L-shaped brackets. The support member is placed at the bottom of the battery pack to support it. The L-shaped brackets include a first bracket and a second bracket, wherein the first bracket is parallel to the yz plane and the second bracket is parallel to the xy plane. The first brackets of the two L-shaped brackets are respectively fixed at both ends of the support member, and the second brackets are respectively used to fix the frame opposite to the battery pack support frame. The support member includes two support ribs, which are respectively inserted into two channels at the bottom of the battery pack to support it. The support ribs and the channels are insulated from each other by a thermoplastic tube sleeved on the support ribs.

[0045] The aforementioned battery pack is equivalent to the battery component in this application. The following description uses the battery component instead of the aforementioned battery pack to describe the bracket assembly structure. In the above scheme, each battery component requires a separate bracket assembly for installation, and each battery component is fixed to the support frame via the bracket assembly. During installation, the battery component is first stably fixed to the support frame using L-shaped brackets fixed to both ends of the support component, and then the bracket assembly is fixed to the support frame. The installation process for the battery component is relatively complex. Furthermore, when installing each bracket assembly with the battery component, the structure of the bracket assembly must be compatible with the structure at the bottom of the battery component, thus requiring corresponding design of the bracket assembly structure, making the bracket assembly structure relatively complex as well.

[0046] Based on this, the battery pack provided in this embodiment also includes a support frame and at least one set of fixing components. The support frame and fixing components are used to support and fix N battery components, so that the battery pack can operate reliably. Each battery component has a mounting block on its outer shell. During installation, each battery component is supported by a support plate of a mounting base. Simultaneously, the mounting blocks at both ends of each battery component pass through limiting holes in the mounting base, allowing the mounting base to limit and fix the battery component in the z and y directions. Two mounting bases are fixedly connected to the opposite side beams of the support frame to fix each battery component to the support frame. The installation mechanism composed of the support frame and fixing components has a simple structure, and the installation process of the battery components is relatively simple, facilitating installation and maintenance. During the movement of the battery pack, the stability of the battery components on the support frame can be ensured, and each battery component can operate reliably.

[0047] Especially when used in mobile charging vehicles, the mounting blocks at both ends of each battery component pass through the limiting holes of the mounting base, providing restraining forces to the battery component in the z and x directions, thereby limiting and fixing the battery component. Simultaneously, the two ends of the battery component are restrained in the y direction by the vertical plates of the two mounting bases, further limiting and fixing the battery component. During the movement of the mobile charging vehicle, by providing restraining forces to the battery component in multiple directions (x, y, and z), the battery component maintains a relatively stable position, preventing movement or tilting, and ensuring stable operation. Particularly in complex road conditions, the support frame and fixing components provide continuous and stable support and reliable installation for the battery component, protecting its internal structure and related connections, preventing shaking and vibration, and ensuring normal operation. Furthermore, the overall battery pack structure is relatively simple and compact, with high stability and high energy density.

[0048] Example 1

[0049] like Figure 1 and Figure 2 As shown, this embodiment provides a battery pack, which includes a support frame 1, N battery components 2, and at least one set of fixing components 3. Each fixing component 3 includes two mounting seats 31. The multiple battery components 2 are arranged sequentially in the support frame 1 along the same direction. The mounting mechanism formed by the support frame 1 and the fixing components 3 is used to stably support and fix the N battery components 2. For ease of description, the direction in which the N battery components 2 are arranged is defined as the x-direction, the height direction of the battery components 2 is defined as the z-direction, and the direction perpendicular to both the x-direction and the z-direction is defined as the y-direction.

[0050] In this embodiment, the battery component 2 includes a housing 21 and multiple individual batteries 22 arranged along the y-direction within the housing 21. Mounting blocks 211 are respectively provided on the two end plates of the housing 21, which are parallel to the xz-plane; that is, the mounting blocks 211 are located on the end plates of the housing 21 parallel to the xz-plane. The mounting blocks 211 can be integrally manufactured with the end plates of the housing 21, or they can be processed separately and then fixed to the end plates of the housing 21 by welding or other methods. The mounting blocks 211 cooperate with the mounting base 31 to achieve the installation and fixation of the battery component 2. The mounting blocks 211 can be implemented using various block structures. In this embodiment, the mounting blocks 211 can specifically be rectangular blocks, which facilitates processing and manufacturing, and also facilitates cooperation with the mounting base 31.

[0051] like Figure 3 and Figure 4As shown, the fixing component 3 in this embodiment is used to support and fix each battery component 2. The fixing component 3 can stably install each battery component 2 on the support frame 1. The fixing component 3 includes two mounting seats 31, which are fixedly connected to the side beams of the support frame 1 extending in the x direction. Each mounting seat 31 has a support plate 311 for supporting the battery component 2 and a limiting hole 312 for the protrusion of the mounting block 211 of the battery component 2. The two ends of the battery component 2 are respectively set on the support plate 311 of the mounting seat 31, and the mounting blocks 211 at both ends of the outer shell 21 of the battery component 2 pass through the limiting hole 312 on the mounting seat 31, so as to realize the limiting and fixing of the battery component 2 in the z and y directions. The mounting seats 31 are connected to the support frame 1, thereby fixing each battery component 2 on the support frame 1.

[0052] The aforementioned fixing component 3 can be applied to different numbers of battery components 2. That is, one set of fixing components 3 can support different numbers of battery components 2. If each battery component 2 is fixed to the mounting block 211 using a separate fixing component 3, the installation accuracy requirement for each battery component 2 is relatively small, which can reduce the installation difficulty and installation deviation of the battery components 2. If multiple batteries share one set of fixing components 3, the manufacturing cost of the fixing components 3 can be reduced accordingly, while also saving installation time and simplifying the installation steps.

[0053] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the mounting base 31 can adopt an L-shaped plate structure, specifically formed by bending sheet metal parts. Bending the sheet metal parts increases the bending strength of the mounting base 31 and improves the stability of the connection. The vertical plate of the L-shaped plate has M limiting holes 312, where M is greater than or equal to 1. The number of limiting holes 312 is set according to the number of battery components mounted on the mounting base 31. The horizontal plate of the L-shaped plate serves as a support plate 311. Both ends of the battery component 2 are mounted on the support plate 311 of the mounting base 31, while the mounting block 211 passes through the limiting holes on the mounting base, thus realizing the installation of the mounting base 31 and the battery component.

[0054] Furthermore, in this embodiment, the mounting base 31 is provided with limiting plates 313 at both ends. The end face of each limiting plate is parallel to the yz plane. The limiting plates 313 are used to limit the position of each battery component 2 in the x direction. The mounting blocks on the battery component shell pass through the limiting holes on each mounting base 31 to limit and fix the battery components in the z and y directions. At the same time, by adding limiting plates 313 to the mounting base 31, each battery component is limited and fixed in the x direction, thereby limiting the battery component 2 at multiple angles and achieving stable installation of the battery component 2.

[0055] In other embodiments, the limiting hole 312 can also be used to limit the position of each battery component 2 in the x direction. In this case, the size of the limiting hole 312 needs to be consistent with the size of the mounting block 211 on the battery component 2. That is, the size of the mounting block 211 in the x and z directions is consistent with the limiting hole 312. By setting this size, the mounting base 31 can limit and fix the battery component 2 in the x, z and y directions.

[0056] After the battery component 2 is installed on the mounting base 31, the mounting base 31 is then fixed to the support frame 1. During installation, the two mounting bases 31 can be connected to the support frame 1 using the same structure, or they can be connected to the support frame 1 using different methods. In this embodiment, the two mounting bases 31 are connected to the support frame 1 using different installation methods, and the specific connection structure is as follows.

[0057] like Figure 4 and Figure 6 As shown, in this embodiment, in the fixing assembly, a mounting base 31 can be connected to the support frame 1 via a first connecting component 33. The first connecting component 33 includes a first pin connecting seat 331 disposed on the mounting base 31 and a second pin connecting seat 332 disposed on the support frame 1. The first pin connecting seat 331 and the second pin connecting seat 332 are connected by a pin, thereby realizing the connection between the mounting base 31 and the support frame 1. When installing each battery component 2, one end of the battery component 2 can be connected via the first connecting component 33, and the position of the battery component 2 can be adjusted via the second connecting component 34 at the other end of the battery component, thereby achieving reliable installation of the battery component 2.

[0058] like Figure 7 As shown, another mounting base 31 is connected to the support frame 1 through a second connecting assembly 34. The second connecting assembly 34 includes a connecting plate 341 disposed on the mounting base 31. The connecting plate 341 protrudes and is connected to the vertical plate of the mounting base 31. The connecting plate 341 has a connecting hole, and the connecting bolt 343 passes through the connecting hole of the connecting plate 341 to connect with the support frame 1.

[0059] The mounting base on one side of battery component 2 is connected to the support frame 1 via a pin connection assembly. This connection method facilitates the installation and positioning of battery component 2. After the mounting base is hinged to the support frame 1, the position of the hinged mounting base and battery component 2 is relatively fixed, achieving positioning of the hinged side of battery component 2. Subsequently, only the position of the mounting base on the other side needs to be adjusted to achieve positioning of the entire battery component 2 in the y-direction, avoiding the problem of needing to adjust the mounting bases at both ends of battery component 2 simultaneously for positioning. At the same time, using a hinge reduces the number of bolts used, improves the reliability of the connection, and avoids problems such as loosening and lower reliability caused by using more bolts. In addition, the installation and disassembly of the pin connection assembly are also relatively convenient.

[0060] To facilitate on-site connection, the connection hole 342 for connecting the connecting plate 341 and the connecting bolt is a U-shaped connection hole 342. During actual assembly, the U-shaped connection hole 342 can be used to adjust the installation position of the connecting plate 341 in the y-direction to compensate for installation errors between the connecting plate 341 and the support frame 1, ensuring the reliability of the connection.

[0061] like Figure 2 and Figure 8 As shown, the support frame 1 in this embodiment is a rectangular frame, mainly composed of two first side beams 11 and two second side beams 12. Each first side beam 11 extends along the x-direction, and each second side beam 12 extends along the y-direction. The two first side beams 11 and the two second side beams 12 are arranged at intervals and connected end to end to form a rectangular frame structure. In specific connection, the first side beams 11 and the second side beams 12 can be assembled to form a rectangular frame by welding or screwing.

[0062] The first side beam 11 and the second side beam 12 mentioned above can be made of U-shaped steel, square steel, I-beam steel, angle steel, etc. To increase the stability and support strength of the support frame 1, the first side beam 11 and the second side beam 12 can be composed of various types of steel. For example, they can be formed by combining U-shaped steel and angle steel to improve the structural strength of the support frame 1.

[0063] In this embodiment, considering cost and structural strength, the first side beam 11 and the second side beam 12 are composed of square steel, with the four square steel bars connected end to end to form a support frame 1. To facilitate the assembly of the battery pack, rollers are also provided at the bottom of the two first side beams 11. The rollers allow for easy movement of the battery pack and the support frame 1. Specifically, a notch is provided at the bottom of the square steel, and the roller is installed inside the notch. That is, the space inside the square steel is used as the installation space for the roller, making the roller an internal installation. Internal installation does not require additional space, and the battery component 2 has a high energy density.

[0064] As can be seen from the above description, the support frame 1 in this embodiment is generally made of steel. In actual use, the outer shell 21 of the battery component 2 may be electrified. In this case, in order to ensure the safety of each battery component 2 during use, the fixing component 3 in this embodiment also includes multiple protective plates 32 made of insulating material. The protective plates 32 are located between each battery component 2 and the mounting base 31 to achieve insulation between the mounting base 31 and the battery component 2.

[0065] like Figure 9 and Figure 10As shown, the protective plate 32 generally has the same shape as the mounting base 31. The mounting base 31 is an L-shaped plate structure, and correspondingly, the protective plate 32 is also an L-shaped plate structure. M limiting protrusions 321 are provided on the vertical plate of the L-shape. The shape of the limiting protrusions 321 is the same as the shape of the upper limit hole 312 of the mounting block 211. Each limiting protrusion 321 has a limiting groove 322 inside. The mounting block 211 of the battery component 2 is embedded in the limiting groove 322, and the limiting protrusion 321 passes through the limiting hole 312 on the mounting base 31.

[0066] Meanwhile, the vertical plate height of the aforementioned protection plate 32 is generally higher than the height of the mounting base 31, and the horizontal plate width of the protection plate 32 is greater than the width of the horizontal plate of the mounting base 31. In addition, the protection plate 32 is also provided with side plates 323 on both sides, and the side plates 323 are parallel to the yz plane. The protection plate 32 completely covers the end of the battery component 2 and the mounting block 211 to ensure that the outer shell 21 of each battery component 2 does not contact the mounting base 31, further improving the safety of the battery component 2.

[0067] Meanwhile, to completely cover the mounting block 211 of the battery component 2, the limiting groove 322 in the protective plate 32 has a shape consistent with that of the mounting block 211. The mounting block 211 has a rectangular block structure, and correspondingly, the limiting groove has a rectangular groove shape. The mounting block 211 can be completely embedded in the limiting groove 322 of the protective plate 32, so that the mounting block 211 of the battery component 2 does not contact the mounting base, increasing insulation reliability. At the same time, the dimension of the limiting groove 322 in the z direction is consistent with the thickness of the mounting block 211 of the battery component 2. After the mounting block 211 of the battery component 2 is embedded in the limiting groove 322 of the protective plate 32, the mounting block 211 does not move in the z direction, thereby achieving the limiting of the battery component 2 in the z direction.

[0068] In this embodiment, the protective plate 32 can be made of PP board, ABS board, or electrical board, etc. During installation, the protective plate 32 is installed at both ends of the battery component 2, then the mounting base 31 is installed on the protective plate 32, and finally the mounting base 31 is installed on the support frame 1. The protective plate 32 is located between the mounting base 31 and the battery component 2 and has at least the following functions: First, it protects the mounting block 211 of the battery component 2, preventing the mounting block 211 of the battery component 2 from separating from the outer shell 21 of the battery component 2 when subjected to a large external force during installation or use, thus avoiding unreliable installation problems caused by the detachment of the mounting block 211; Second, it increases the insulation performance between the battery component 2 and the support frame 1, improving the reliability of the battery component 2 during operation.

[0069] Example 2

[0070] This embodiment provides a detailed description of the structure of battery component 2 in Embodiment 1.

[0071] like Figure 11 As shown, the battery component 2 in this embodiment includes a housing 21 and multiple individual batteries 22 arranged in the same direction within the housing 21. The individual batteries 22 in this embodiment are prismatic batteries, and their number can be adjusted according to actual needs. The internal cavity of each individual battery 22 includes an electrolyte area and a gas area. After the multiple individual batteries 22 are arranged in the same direction within the housing 21, a clearance hole is provided on the top plate of the housing 21 corresponding to the polarity terminal 221 of each individual battery 22. The polarity terminal 221 of each individual battery 22 extends out of the corresponding clearance hole as the polarity terminal 221 of the battery component 2 (the polarity terminals of all individual batteries on one side serve as the positive polarity terminal of the battery component, and the polarity terminals of all individual batteries on the other side serve as the negative polarity terminal of the battery component). The area of ​​the top plate of the housing 21 corresponding to the clearance hole is fixedly sealed to the housing of the individual battery 22.

[0072] It should be noted that the polarity terminal 221 of the single cell 22 here can be the terminal post of the single cell 22. In order to prevent the terminal post of the single cell 22 from not being able to extend smoothly out of the clearance hole as the polarity terminal 221, a terminal post adapter can be connected to the terminal post of the single cell 22, and the overall structure of the terminal post of the single cell 22 and the terminal post adapter can be used as the polarity terminal 221 of the single cell 22.

[0073] The aforementioned outer casing 21 has a shared chamber, the inner cavity of which is connected to the inner cavities of all individual battery cells 22.

[0074] The aforementioned shared chamber can be an electrolyte shared chamber. The inner cavity of the electrolyte shared chamber is connected to the electrolyte area inside all individual battery cells 22. Through the electrolyte shared chamber, each individual battery cell 22 is in a uniform electrolyte environment, ensuring the uniformity of the electrolyte within each individual battery cell 22 and improving the performance and charge-discharge cycle life of the battery component 2. In this embodiment, the electrolyte shared chamber is a liquid channel located between the bottom plate of the outer casing 21 and the bottom of each individual battery cell 22.

[0075] The aforementioned shared chamber can also be a gas-sharing chamber. The inner cavity of the gas-sharing chamber is connected to the gas region of all individual battery cells 22. The gas balance of each individual battery cell 22 is achieved through the gas-sharing chamber, which can also improve the performance of the battery component 2 and its charge-discharge cycle life. In this embodiment, the gas-sharing chamber is a gas channel provided on the top plate of the outer casing 21. At this time, the top plate of the outer casing 21 has a protrusion extending along the arrangement direction of the individual battery cells 22, and a gas channel is formed at the protrusion.

[0076] The aforementioned shared chamber can also be a gas-liquid shared chamber. The inner cavity of the gas-liquid shared chamber is connected to the electrolyte area and gas area of ​​all individual battery cells 22. Through a gas-liquid shared chamber, each individual battery cell 22 can be in a unified electrolyte environment and gas environment, which improves the performance of the battery component 2 and its charge-discharge cycle life.

[0077] To vent thermal runaway fumes from the housing 21 of the battery component 2, this embodiment provides a vent on the housing 21 that communicates with the inner cavity of the housing 21; normally, this vent communicates with the shared chamber. The vent on the housing 21 is equipped with a vent pipe assembly that communicates with the shared chamber, and the vent pipe assemblies of adjacent battery components 2 are connected by pipes to form a vent manifold 4. When a single cell 22 in any battery component 2 experiences thermal runaway, the thermal runaway fumes can be discharged through the vent manifold 4, reducing the risk of combustion or explosion of the battery component 2 or battery pack.

[0078] like Figure 11 As shown, to further improve the safety of the battery component 2 during use in this embodiment, a heat transfer pipe 5 is connected to the portion of the polar terminal 221 of each individual battery 22 that extends out of the outer casing 21. The heat transfer pipe 5 exchanges heat with the polar terminal 221 of each individual battery 22. When the temperature of the battery component 2 is higher than a set threshold, the battery component 2 is cooled by introducing a lower temperature heat transfer medium into the heat transfer pipe 5. When the temperature of the battery component 2 is lower than the set threshold, the battery component 2 is heated by introducing a higher temperature heat transfer medium into the heat transfer pipe 5. By controlling the temperature of the heat transfer medium, it can be ensured that the battery component 2 always operates at the normal operating temperature.

[0079] like Figure 11 As shown, the top of the outer shell 21 of the battery component 2 has two heat transfer pipes 5. Each heat transfer pipe 5 extends along the y-axis and the two heat transfer pipes 5 are arranged along the x-axis. Each polar terminal 221 of the battery component 2 is provided with a through groove. The two heat transfer pipes 5 are respectively embedded in the through grooves of the polar terminals 221 located on different sides. One heat transfer pipe 5 is embedded in the through groove of the positive polar terminal 221 of the battery component 2, and the other heat transfer pipe 5 is embedded in the through groove of the negative polar terminal 221 of the battery component 2. The heat transfer pipe 5 has a channel for the heat transfer medium to pass through, and heat exchange is performed on the polar terminals 221 of the battery component 2 through the heat transfer pipe 5.

[0080] Simultaneously, in this embodiment, an insulating sealant layer is laid on the top plate of the outer casing 21. The insulating sealant layer encapsulates at least a portion of the structure of the heat transfer pipe 5 and the polar terminal 221, with the top of the heat transfer pipe 5 exposed, serving as an electrical connection. During the operation of the battery component 2, internal temperature changes may cause water vapor condensation. The insulating sealant layer isolates external moisture, reduces internal humidity changes, and prevents water droplets from forming on the surfaces of the heat transfer pipe 5 and the polar terminal 221, thus preventing short circuits and component corrosion caused by condensation. Furthermore, encapsulating a portion of the structure of the heat transfer pipe 5 and the polar terminal 221 within the sealant layer makes the connections between components tighter, reducing relative displacement between components under vibration, impact, and other conditions, and enhancing the overall structural stability of the battery component 2.

[0081] Furthermore, because the polarity terminal 221 of the individual battery 22 is directly exposed to the external environment, there is a significant safety hazard during use due to the energized polarity terminal 221. Therefore, if... Figure 3 and Figure 4 As shown, in this embodiment, a protective shell 23 is provided on the outside of the battery component 2 to provide insulation protection for the polarity terminals 221 of the individual cells 22. The protective shell 23 avoids potential safety hazards caused by the exposure of the polarity terminals 221 of the individual cells 22 during the operation of the battery component 2, and also prevents foreign objects from falling into the polarity terminals 221 of the individual cells 22 and causing short circuits in the battery component 2, thus improving the safety of the battery component 2. During the actual assembly of the battery component 2, the heat transfer pipe 5 and the explosion venting manifold 4 are both located inside the protective shell 23. The protective shell 23 protects the heat transfer pipe 5 and the explosion venting manifold 4 to improve the safety of the battery pack during use.

Claims

1. A battery pack, characterized in that, It includes a support frame, N battery components, and at least one set of fixing components, wherein N is greater than or equal to 1; N battery components are arranged sequentially in the support frame along the x direction. Each battery component includes a shell and multiple individual batteries arranged in the shell along the y direction. Mounting blocks are provided on the two end plates of the shell. Each end plate is parallel to the xz plane. The fixing component includes two mounting seats, which are respectively fixedly connected to the side beams of the support frame extending in the x direction. Each mounting seat has a support plate for supporting the battery component and M limiting holes for the battery component mounting block to pass through, wherein M is greater than or equal to 1. The two ends of the battery component are respectively located on the support plates of the two mounting seats, and the mounting blocks of the battery component housing pass through the limiting holes on each mounting seat so that the mounting seats fix each battery component on the support frame.

2. The battery pack according to claim 1, characterized in that, The mounting base is provided with limiting plates on both sides, and the end face of each limiting plate is parallel to the yz plane, which is used to limit the battery component in the x direction.

3. The battery pack according to claim 1, characterized in that, The fixing assembly also includes a protective plate located between the battery component and the mounting base. The protective plate is an L-shaped plate made of insulating material. The vertical plate of the L-shaped plate has M limiting protrusions, and each limiting protrusion has a limiting groove. The mounting block of the battery component is embedded in the limiting groove, and the limiting protrusion passes through the limiting hole on the mounting base.

4. The battery pack according to claim 1, characterized in that, In the fixed assembly, one mounting base is connected to the support frame via a first connecting component, and the other mounting base is connected to the support frame via a second connecting component; The first connecting component includes a first pin connector mounted on a mounting base and a second pin connector mounted on a support frame, the first pin connector and the second pin connector being connected by a pin.

5. The battery pack according to claim 4, characterized in that, The second connecting assembly includes a connecting plate disposed on the mounting base, the connecting plate having a U-shaped connecting hole, and a connecting bolt passing through the U-shaped connecting hole of the connecting plate to connect with the support frame.

6. The battery pack according to any one of claims 1 to 5, characterized in that, Multiple battery components share a set of fixing components.

7. The battery pack according to claim 6, characterized in that, The support frame is a rectangular frame, mainly composed of two first side beams and two second side beams connected together. The first side beams extend along the x-direction and are made of square steel. The bottom end of the square steel has a notch, and a roller is installed in the notch. The second side beams extend along the y-direction and are made of square steel.

8. The battery pack according to any one of claims 1 to 4, characterized in that, The outer casing has a shared chamber; the inner cavity of the shared chamber is connected to the inner cavity of all individual batteries; the top plate of the outer casing has clearance holes corresponding to the polarity terminals of each individual battery; the polarity terminals of each individual battery extend out of the clearance holes, and the area of ​​the top plate of the outer casing corresponding to the clearance holes is fixedly sealed to the individual battery casing.

9. The battery pack according to claim 8, characterized in that, The outer casing is provided with a venting pipe assembly that communicates with the shared chamber. The venting pipe assemblies of adjacent battery components are connected by pipes to form a venting manifold.

10. The battery pack according to claim 8, characterized in that, Each individual cell has a heat transfer tube extending from its polar terminal into the outer casing. The heat transfer tube exchanges heat with the polar terminal of each individual cell. An insulating sealant layer is laid on the top of the outer casing, and at least part of the structure of the polar terminal and the heat transfer tube is located within the insulating sealant layer.

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