An end plate assembly, housing and battery member

Abstract

The utility model belongs to the battery field, concretely is a kind of end plate assembly, shell and battery component, based on the structure of end plate assembly, make it cooperate with insulating mounting seat, to realize the reliable installation of battery component, improve the use stability of battery component.The utility model end plate assembly includes first end plate;The outer side of first end plate away from the inner chamber of battery component is equipped with the installation recess groove towards the inner chamber of battery component, and battery component is cooperated with insulating mounting seat by the installation recess groove.The structure of the end plate assembly not only facilitates the reliable installation of battery component, but also simplifies the structure of battery component, compared with the mode of installing and fixing battery component by other ways, the mode of setting installation recess groove, it is convenient to process and make the shell of battery component, also reduce the manufacturing cost of battery component.

Description

Technical Field

[0001] This utility model belongs to the field of batteries, specifically relating to an end plate assembly, a housing, and a battery component. 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 include 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; how to reliably install these battery components is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This utility model provides an end plate assembly, a housing, and a battery component. The structure of the end plate assembly is optimized to cooperate with the insulating mounting base, thereby achieving reliable installation of the battery component and improving the stability of the battery component in use.

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

[0006] The end plate assembly provided by this utility model is used for battery components. The end plate assembly includes a first end plate. The outer side of the first end plate away from the inner cavity of the battery component is provided with a mounting groove facing the inner cavity of the battery component. The mounting groove is used to cooperate with an insulating mounting seat.

[0007] Furthermore, the outer surface of the first end plate has at least one first rib extending in the z-direction, and a mounting groove is disposed on the first rib, penetrating the first rib in the x-direction.

[0008] Furthermore, the first rib is integrally formed on the first end plate, and the first rib is provided with mounting holes.

[0009] Furthermore, the first end plate has an explosion vent for mounting an explosion venting component, and the first end plate also has a gas channel communicating with the explosion vent, the gas channel being formed by a second rib disposed on the inner side of the first end plate.

[0010] This utility model also provides an outer shell, which includes a cylindrical body with open ends and two end plate assemblies that are respectively sealed and fixed to the open ends of the cylindrical body. The end plate assemblies are the end plate assemblies described above.

[0011] Furthermore, the two side plates of the cylinder are respectively provided with concave and convex positioning structures, and each concave and convex positioning structure extends along the y direction.

[0012] Furthermore, the two side plates of the cylinder are respectively provided with concave and convex positioning structures for cooperating with the insulating mounting base, and each concave and convex positioning structure extends along the y direction.

[0013] Furthermore, the concave-convex positioning structure and the third rib are integrally formed on the cylinder.

[0014] This utility model also provides a battery component, including a housing and a plurality of individual batteries arranged in the housing along the y-direction; the housing adopts the housing described above.

[0015] 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.

[0016] Furthermore, an explosion venting assembly communicating with the shared chamber is installed on the explosion vent of the first end plate.

[0017] Furthermore, each individual battery cell has a heat transfer tube extending from its polar terminal into the outer casing, and the heat transfer tube exchanges heat with the polar terminal of each individual battery cell.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] 1. This utility model optimizes the structure of the battery component end plate assembly. A mounting groove is provided on the outer side of the first end plate, through which the battery component engages with the insulating mounting base. The optimized end plate assembly not only facilitates the installation of the battery component, but also simplifies the structure of the battery component's engagement with the battery frame compared to other methods of mounting and fixing the battery component.

[0020] 2. In the end plate assembly of this utility model, a first rib is provided on the outer side of the first end plate, and a mounting groove is provided on the first rib. By providing a mounting groove on the first rib, not only is the cooperation between the battery component and the insulating mounting seat realized, ensuring the reliable installation of the battery component on the battery rack, but also, compared with using a thicker first end plate with a mounting groove, the first rib reduces the thickness of the first end plate, reduces the material usage and manufacturing cost, while ensuring the overall strength of the first end plate and improving the reliability of the battery component during use. During battery component installation, insulating mounting seats are respectively installed at both ends of the battery component. The insulating mounting seats are in contact with the outer end face of the first end plate, so that the insulating mounting seats provide a binding force in the y direction to the battery component. At the same time, the first rib of the first end plate is located in the first mounting groove of the insulating mounting seat, and the mounting protrusion of the insulating mounting seat is embedded in the mounting groove of the first rib, so that the insulating mounting seat provides binding forces in the z and x directions to the battery component. When the battery component is in use, the insulating mounting base can provide binding force and action force to the battery component in multiple directions, so that the battery component can maintain a relatively stable and fixed position without moving or tilting, and the battery component can work stably and reliably.

[0021] 3. In the end plate assembly of this utility model, the first rib is integrally formed on the first end plate. This method facilitates the processing of the first end plate and has a lower processing cost. Compared with the split structure, it can further improve the overall strength of the first end plate.

[0022] 4. In the end plate assembly of this utility model, the first rib also has a mounting hole for fixed connection with the insulating mounting base. Through this mounting hole, the insulating mounting base is fixedly connected to the first end plate, further fixing the position of the battery component and improving the installation reliability of the battery component by the insulating mounting base. At the same time, setting the mounting hole on the first rib not only facilitates connection but also ensures the strength of the first end plate.

[0023] 5. The first end plate of the end plate assembly of this utility model has a vent for installing a venting component. This vent allows gas in the battery component to be discharged promptly, preventing excessive pressure inside the battery component's casing and thus avoiding safety hazards. The first end plate has a gas channel communicating with the vent, formed by a second rib on the inner side of the first end plate. When the end plate assembly is sealed and fixed to the open end of the cylinder, gas inside the battery component's casing can be smoothly discharged through the gas channel to the venting component at the venting port, further improving the safety performance of the battery component. Furthermore, the second rib also increases the overall strength of the first end plate, enhancing the reliability of the battery component during use.

[0024] 6. In the outer casing of this utility model, the two side plates of the cylindrical body are respectively provided with concave-convex positioning structures and third ribs. The third ribs and concave-convex positioning structures can further increase the strength of the outer casing and improve the safety and reliability of the battery component during use. At the same time, the aforementioned concave-convex positioning structures also cooperate with the insulating mounting base to position and install the battery component, further limiting the position of the battery component. During the use of the battery component, the end plate assembly and the cylindrical body of the battery component cooperate with the insulating mounting base to position and install the battery component through multiple areas and positions, thereby improving the installation reliability of the battery component.

[0025] In addition, the aforementioned concave-convex positioning structure can increase the gap between the shells of adjacent battery components, thereby increasing the insulation distance between the shells of adjacent battery components when the battery components are closely arranged, and improving the insulation performance between the battery components.

[0026] 7. In the battery component of this utility model, the battery component places multiple individual cells in a shell with a shared chamber. The shared chamber is connected to the inner cavity of each individual cell located in the shell, which reduces the differences between individual cells and improves the consistency between individual cells to a certain extent, thereby improving the cycle life of the battery component to a certain extent.

[0027] 8. In the battery component 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 component always operates at the normal operating temperature.

[0028] 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

[0029] Figure 1 This is a schematic diagram of the installation of the battery component and the insulating mounting base in Example 1;

[0030] Figure 2 This is a schematic diagram of the battery component in Example 1;

[0031] Figure 3 This is a schematic diagram of the end plate assembly in Example 1;

[0032] Figure 4 This is a schematic diagram of the battery component in Example 2;

[0033] Figure 5 This is a schematic diagram of the end plate assembly in Example 2. Figure 1 ;

[0034] Figure 6 This is a schematic diagram of the end plate assembly in Example 2. Figure 2 ;

[0035] Figure 7 This is an exploded view of the outer casing in Example 3;

[0036] Figure 8 This is a schematic diagram of the cylinder structure in Example 3;

[0037] Figure 9 This is a schematic diagram of the battery component and the insulating mounting base assembled in Example 4;

[0038] Figure 10 This is a schematic diagram of the insulating mounting base in Example 4. Figure 1 ;

[0039] Figure 11 This is a schematic diagram of the insulating mounting base in Example 4. Figure 2 ;

[0040] Figure 12 This is a schematic diagram of multiple battery components mounted on a support frame in Example 4.

[0041] Reference numerals: 1-Battery component, 2-Insulating mounting base, 3-Support frame, 4-Insulating pad, 11-End plate assembly, 12-Cylinder body, 13-Single cell, 14-Explosion venting assembly, 15-Heat transfer tube, 16-Insulating protective cover, 111-First end plate, 112-First rib, 113-Mounting groove, 114-Mounting hole, 115-Second end plate, 116-Gas passage, 117-Explosion vent, 121-Side plate 122-Concave-convex positioning structure, 123-Third rib, 124-Support rib, 125-Allowing hole, 126-Gas sharing chamber, 127-Electrolyte sharing chamber, 131-Polar terminal, 21-Support plate, 22-Upright plate, 23-First mounting groove, 24-Mounting protrusion, 25-Baffle, 26-Second mounting groove, 27-Mounting plate, 28-First connecting hole, 29-Rib plate, 210-Second connecting hole. Detailed Implementation

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] This utility model provides an end plate assembly suitable for battery components. Such battery components can be existing battery packs or battery modules, or they can be high-capacity batteries. The battery packs or modules described herein can consist of a housing and multiple individual cells connected in parallel or series within the housing. The high-capacity batteries described herein are batteries composed of multiple individual cells connected in parallel with a shared electrolyte system. The structure of such high-capacity batteries is detailed in the high-capacity battery structures disclosed in CN220797038U, CN117878492A, CN220324596U, CN118299739A, CN220324640U, and CN118800999A.

[0047] The aforementioned battery components may also consist of a housing and multiple electrode assemblies located within the housing. These electrode assemblies are commonly used in the battery industry and are components within the casing of a single battery cell, rather than being understood as the single battery cell itself. Furthermore, they may be wound cores or cells made by stacking. Generally, the electrode assembly includes at least a positive electrode, a separator, a negative electrode, and tabs connected to the positive and negative electrode respectively.

[0048] For ease of description, the width direction of the outer shell is defined as the x-direction, the length direction of the outer shell is defined as the y-direction, and the height direction of the outer shell is defined as the z-direction.

[0049] To ensure reliable installation of the battery components, this invention optimizes the structure of the battery component housing end plate assembly. The optimized battery component housing is installed in conjunction with the insulating mounting bases located at both ends of the battery component, ensuring the reliability of the battery component during operation.

[0050] This invention provides a mounting groove facing the inner cavity of the battery component on the outer side of the first end plate away from the inner cavity of the battery component. When the battery component is in use, the mounting protrusion of the insulating mounting seat is inserted into the mounting groove. The optimized end plate assembly not only facilitates the installation of the battery component, but also simplifies the structure of the battery component and battery holder by providing a mounting groove on the end plate assembly and allowing the mounting groove to interlock with the insulating support seat, compared to other methods of installing and fixing the battery component. Furthermore, this end plate assembly structure simplifies the structure of the battery component. Compared to other methods of installing and fixing the battery component, the mounting groove facilitates the processing and manufacturing of the battery component's outer shell, and also reduces the manufacturing cost of the battery component.

[0051] Example 1

[0052] like Figure 1 and Figure 2 As shown, this embodiment provides an end plate assembly 11, which is suitable for a battery component 1. The battery component 1 includes a housing and a plurality of individual batteries 13 arranged within the housing. The housing includes a cylindrical body 12 with open ends on both sides and two end plate assemblies 11 sealing the open ends of the cylindrical body 12. This embodiment optimizes the structure of the end plate assembly 11 of the housing. The optimized end plate assembly 11 is installed in conjunction with the insulating mounting bases 2 at both ends of the battery component 1 to improve the reliability of the battery component 1 during operation.

[0053] like Figure 3 As shown, the end plate assembly 11 in this embodiment includes a first end plate 111, which is a flat plate structure. Since the first end plate 111 is used to seal the open end of the cylindrical body 12 of the battery component 1, the shape of the first end plate 111 is adapted to the shape of the open end of the cylindrical body 12. The area of ​​the first end plate 111 can be slightly larger than the area of ​​the open end of the cylindrical body 12, or it can be the same as the area of ​​the open end of the cylindrical body 12. Specifically, the first end plate 111 can be fixed to the open end of the cylindrical body 12 by welding. Of course, other methods can also be used to fix the first end plate 111 to the open end of the cylindrical body 12. After connection, the sealing between the first end plate 111 and the cylindrical body 12 must be ensured.

[0054] If the cylindrical body 12 of the battery component 1 also has a shared chamber, then the first end plate 111 also has a structure for sealing the shared chamber. For example, Figure 2The top plate of the cylinder 12 of the battery component 1 has a gas sharing chamber 126. Correspondingly, the top of the first end plate 111 also has a protruding sub-end plate. The shape of the sub-end plate matches the cross-sectional shape of the gas sharing chamber 126. The gas sharing chamber 126 of the cylinder 12 is sealed by the protruding sub-end plate.

[0055] Based on the above structure, this embodiment optimizes the structure of the first end plate 111. The optimized first end plate 111 not only improves the strength of the first end plate 111, but also enables reliable installation of the battery component 1. The specific optimized structure is as follows:

[0056] In this embodiment, a mounting groove 113 facing the inner cavity of the battery component is provided on the outer side of the first end plate 111 away from the inner cavity of the battery component. The battery component mates with the insulating mounting seat through the mounting groove 113. The structure of this end plate assembly not only facilitates reliable installation of the battery component, but also simplifies the structure of the battery component. Compared with other methods of installing and fixing the battery component, the method of providing the mounting groove 113 facilitates the processing and manufacturing of the battery component's outer shell, and also reduces the manufacturing cost of the battery component.

[0057] This embodiment can further optimize the structure of the end plate assembly. The outer surface of the first end plate 111 in this embodiment has a first rib 112 extending along the z-direction. The first rib 112 protrudes from the outer side of the first end plate 111, which is the side of the first end plate 111 away from the open end of the cylinder 12. Correspondingly, the inner side of the first end plate 111 is the side of the first end plate 111 facing the open end of the cylinder 12. The number of first ribs 112 is not required, but at least one is required, and can be set according to needs. If there are multiple first ribs 112, they can be arranged along the x-direction, and can also be arranged in parallel. When the battery component's casing uses this end plate assembly, the first rib 112 not only increases the overall strength of the first end plate 111, ensuring the safety of the battery component during use, but also cooperates with the insulating mounting bases at both ends of the battery component to achieve reliable installation of the battery component.

[0058] like Figure 3 As shown, the outer side of the first end plate 111 in this embodiment has four first ribs 112. Each first rib 112 is a strip-shaped protrusion extending along the z direction. The cross-section of the strip-shaped protrusion is not required. In this embodiment, the cross-section of the strip-shaped protrusion is rectangular. In other embodiments, it can also be semi-circular, etc.

[0059] The first rib 112 can be integrally formed on the first end plate 111, or it can be processed separately and then fixed to the first end plate 111 by welding or other methods. Compared with the structure of processing separately and then connecting, integrally forming the first rib 112 on the first end plate 111 can not only further improve the strength of the first end plate 111, but also facilitate processing and have lower processing costs.

[0060] like Figure 3 As shown, after a first rib 112 is provided on the first end plate 111, a mounting groove 113 can be provided on the first rib 112. The mounting groove 113 penetrates the first rib 112 in the x-direction. If multiple first ribs 112 are provided with mounting grooves 113, the height of the mounting grooves 113 on each first rib 112 is the same, that is, the mounting grooves 113 on each first rib 112 are at the same height in the z-direction. Meanwhile, the depth of the mounting groove 113 can be the same as, less than, or greater than the thickness of the first rib 112. If it is greater than the thickness of the first rib 112, it may affect the strength of the first end plate 111. In this embodiment, the depth of the mounting groove 113 is the same as the thickness of the first rib 112, which ensures the strength of the first end plate 111 as much as possible while also facilitating the processing and manufacturing of the mounting groove 113.

[0061] After the aforementioned end plate assembly 11 forms the battery component 1, insulating mounting seats 2 are installed at both ends of the battery component 1. At this time, the outer surface of the first end plate 111 is in close contact with the insulating mounting seat 2, and the insulating mounting seat 2 provides a binding force in the y direction to the battery component 1. The first rib 112 of the first end plate 111 is located in the first mounting groove 23 of the insulating mounting seat 2, and the mounting protrusion 24 in the first mounting groove 23 is embedded in the mounting groove 113 of the first rib 112. The insulating mounting seat 2 provides binding forces in the z and y directions to the battery component 1. At this time, the insulating mounting seat 2 provides binding forces and action forces to the battery component 1 in multiple directions, thereby positioning and installing the battery component 1 in multiple directions to improve the reliability of the battery component 1 during operation.

[0062] Furthermore, in this embodiment, the end plate assembly 11 can be fixed to the insulating mounting base 2. Specifically, the insulating mounting base 2 can be fixedly installed to the outer side of the first end plate 111. However, this method will affect the strength of the first end plate 111. Therefore, preferably, the insulating mounting base 2 is fixedly connected to the first rib 112 of the first end plate 111. At this time, the first rib 112 can be provided with a mounting hole 114 for fixed connection with the insulating mounting base 2. The mounting hole 114 can be a threaded hole or a through hole. When a threaded hole is used, the insulating mounting base 2 is fixed to the first rib 112 of the first end plate 111 by screws. When a through hole is used, the insulating mounting base 2 is fixedly connected to the first rib 112 by screws or other connecting parts by adhesive or other means.

[0063] Furthermore, the mounting hole 114 must be positioned to avoid the mounting groove 113; that is, the mounting hole 114 should be located where the first rib 112 does not have a mounting groove 113, to ensure the strength of the first end plate 111. If the mounting hole 114 coincides with the mounting groove 113, the first end plate 111 needs to be thicker to meet the connection requirements, and the screws in the mounting hole 114 will also affect the fit between the mounting groove 113 and the mounting protrusion 24 of the insulating mounting base 2.

[0064] Example 2

[0065] This embodiment provides an endplate assembly, which differs from Embodiment 1 in that, Figure 4 and Figure 5 As shown, the first end plate 111 of the end plate assembly 11 in this embodiment has a vent 117. When the end plate assembly 11 is sealed and fixed to the open end of the cylinder 12, the vent 117 communicates with the inner cavity of the battery component 1. Through the vent 117, the gas in the battery component 1 can be discharged in time, avoiding excessive pressure inside the outer shell of the battery component 1 and preventing safety hazards. In addition, the vent 117 can also have other uses, such as serving as an operating port for an opening device or as a liquid injection port.

[0066] When the battery component 1 is in operation, an explosion venting assembly 14 is installed on the aforementioned explosion vent 117. The explosion venting assembly 14 can be a hollow component with an explosion venting membrane at one end, or it can be a structure such as an explosion venting valve. To facilitate the installation of the explosion venting assembly 14, the explosion vent 117 is located in the area of ​​the first end plate 111 where the first rib 112 is not provided, and is preferably located in the middle area of ​​the first end plate 111.

[0067] like Figure 5As shown, the end plate assembly 11 is also provided with a gas channel 116, which communicates with the inner cavity of the outer casing. The explosion vent 117 is also connected to the gas channel 116. Gas inside the outer casing of the battery component 1 is smoothly discharged through the gas channel 116 to the explosion vent assembly 14 at the explosion vent 117, achieving reliable explosion venting. The gas channel 116 can be implemented in the following ways:

[0068] First, the gas passage 116 is a groove provided on the inner side of the first end plate 111. The groove extends along the z direction and is connected to the inner cavity of the outer shell and the explosion vent 117. This method requires the first end plate 111 to have a corresponding thickness to provide the groove.

[0069] Second, a second rib is added to the inner side of the first end plate 111, and the gas channel 116 is formed by the second rib provided on the inner side of the first end plate 111; at the same time, the second rib can also further increase the overall strength of the first end plate and improve the reliability of the battery component during use.

[0070] Third, such as Figure 5 and Figure 6 As shown, a second end plate 115 is added inside the first end plate 111. There is a gap between the second end plate 115 and the first end plate 111. This gap is a gas channel 116. This arrangement of the gas channel 116 makes the gas channel 116 have a large flow area.

[0071] Furthermore, adding a second end plate 115 inside the first end plate 111 can improve the overall strength of the end plate assembly 11. At the same time, in the y-direction, the second end plate 115 can also clamp the individual cells 13 inside the housing, improving the stability of each individual cell 13 within the housing cavity and preventing the problem of reduced cycle performance of the battery component 1 due to swelling of the individual cells 13.

[0072] Example 3

[0073] This embodiment provides a housing for a battery component 1, used to mount multiple individual battery cells 13. For example... Figure 7 As shown, the outer shell includes a cylindrical body 12 and end plate assemblies 11 that are respectively sealed and fixed to two opposite open ends of the cylindrical body 12. The end plate assembly 11 adopts the end plate assembly 11 in Embodiment 1 or Embodiment 2.

[0074] like Figure 7As shown, in this embodiment, the cylindrical body 12 has open ends on both the left and right sides (i.e., the two ports parallel to the xz plane are open ends), and the two end plate assemblies 11 are respectively sealed and fixed to the open ends of the cylindrical body 12. If the battery component 1 is a high-capacity battery, at least one end plate assembly 11 of the two open ends of the cylindrical body 12 adopts the end plate assembly 11 in embodiment 2, and the other end plate assembly 11 can adopt the end plate assembly 11 in embodiment 1. Each end plate assembly 11 is fixed to the open end of the cylindrical body 12 by welding or other means.

[0075] like Figure 8 As shown, the cylinder 12 in this embodiment includes a top plate, a bottom plate, and two side plates 121. The cylinder 12 is a rectangular cylinder made of metal material. In order to facilitate processing and production, the cylinder 12 can be made by integral molding. Integral molding methods include casting, extrusion, 3D printing, etc. Considering both cost and processing efficiency, this embodiment selects extrusion process to form the cylinder 12.

[0076] like Figure 8 As shown, in this embodiment, the two side plates 121 of the cylindrical body 12 are respectively provided with concave and convex positioning structures 122. Each concave and convex positioning structure 122 extends along the y direction. In this embodiment, the concave and convex positioning structure 122 can be a strip-shaped protrusion structure, which is embedded into the second mounting groove 26 of the insulating mounting base 2 to further position and install the battery component 1 in the z direction, thereby improving the installation reliability of the battery component 1.

[0077] Furthermore, in this embodiment, the two side plates 121 of the cylindrical body 12 are each provided with a third rib 123, and each third rib 123 extends along the y-direction. The third rib 123 and the concave-convex positioning structure 122 can further increase the strength of the outer shell and improve the safety of the battery component 1. Compared with increasing the strength by increasing the wall thickness of the cylindrical body, the third rib 123 not only improves the strength of the cylindrical body, but also reduces the amount of material used in the cylindrical body, thereby reducing the cost and weight of the cylindrical body.

[0078] The aforementioned concave-convex positioning structure 122 and the third rib 123 are integrally formed on the cylinder 12. Specifically, they can be integrally formed on the cylinder 12 through an extrusion process, which not only further improves the strength but also facilitates processing and has a lower manufacturing cost. This embodiment optimizes the cylinder 12, reducing costs and achieving lightweight while ensuring the overall structural strength of the cylinder 12.

[0079] like Figure 8As shown, if the outer casing of this embodiment is suitable for a large-capacity battery, the cylindrical body 12 also has a shared chamber, which includes a gas shared chamber 126 and an electrolyte shared chamber 127. Specifically, the top plate of the cylindrical body 12 has a gas shared chamber 126, and the bottom of the cylindrical body 12 has an electrolyte shared chamber 127. The gas shared chamber 126 is formed by a protrusion on the top of the outer casing. The inner surface of the bottom plate of the cylindrical body 12 is provided with at least two support ribs 124 extending in the y direction. The area between the two support ribs 124 constitutes the electrolyte shared chamber 127.

[0080] Meanwhile, in order to facilitate the extension of the polarity terminals 131 of each individual battery 13 to the outer shell for electrical connection, the top plate of the cylinder 12 also has clearance holes 125 for the extension of the polarity terminals 131 of each individual battery 13.

[0081] Example 4

[0082] like Figure 2 and Figure 4 As shown, this embodiment provides a battery component. The battery component 1 in this embodiment includes a housing and a plurality of individual cells 13 arranged in the same direction within the housing. The housing can be the housing in embodiment 3. The individual cells 13 in this embodiment are prismatic cells, and the number can be adjusted according to actual needs. The inner cavity of each individual cell 13 includes an electrolyte region and a gas region.

[0083] After multiple individual batteries 13 are arranged in the same direction and placed inside the housing, a clearance hole 125 is provided on the top plate of the housing corresponding to the polarity terminal 131 of each individual battery 13. The polarity terminal 131 of each individual battery 13 extends out of the corresponding clearance hole 125 as the polarity terminal 131 of the battery component 1 (the polarity terminals of all individual batteries on one side serve as the positive polarity terminals of the battery component, and the polarity terminals of all individual batteries on the other side serve as the negative polarity terminals of the battery component). The area of ​​the top plate of the housing corresponding to the clearance hole 125 is fixedly sealed to the housing of the individual battery 13.

[0084] It should be noted that the polarity terminal 131 of the single cell 13 here can be the terminal post of the single cell 13. In order to prevent the terminal post of the single cell 13 from not being able to extend smoothly out of the clearance hole 125 as the polarity terminal 131, a terminal post adapter can be connected to the terminal post of the single cell 13, and the overall structure of the terminal post of the single cell 13 and the terminal post adapter can be used as the polarity terminal 131 of the single cell 13.

[0085] The aforementioned outer casing has a shared chamber, the inner cavity of which is connected to the inner cavities of all individual battery cells 13.

[0086] The aforementioned shared chamber can be an electrolyte shared chamber 127. The inner cavity of the electrolyte shared chamber 127 is connected to the electrolyte area inside all individual battery cells 13. Through the electrolyte shared chamber 127, each individual battery cell 13 can be in a uniform electrolyte environment, ensuring the uniformity of the electrolyte in each individual battery cell 13 and improving the performance and charge-discharge cycle life of the battery component 1. In this embodiment, the electrolyte shared chamber 127 is a liquid channel disposed between the bottom plate of the outer casing and the bottom of each individual battery cell 13.

[0087] The aforementioned shared chamber can also be a gas-sharing chamber 126. The inner cavity of the gas-sharing chamber 126 is connected to the gas region of the inner cavity of all individual battery cells 13. The gas balance of each individual battery cell 13 is achieved through the gas-sharing chamber 126, which can also improve the performance of the battery component 1 and its charge-discharge cycle life. In this embodiment, the gas-sharing chamber 126 is a gas channel 116 provided on the top plate of the outer casing. At this time, the top plate of the outer casing has a protrusion extending along the arrangement direction of the individual battery cells 13, and the gas channel 116 is formed at the protrusion.

[0088] 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 13. Through a gas-liquid shared chamber, each individual battery cell 13 can be in a unified electrolyte environment and gas environment, which improves the performance of the battery component 1 and its charge-discharge cycle life.

[0089] To vent thermal runaway fumes from the casing of the battery component 1, a venting assembly 14 communicating with a shared chamber is provided on the explosion vent 117 of the casing. The venting assemblies 14 of adjacent battery components 1 are connected to form a venting manifold. When a single cell 13 in any battery component 1 experiences thermal runaway, the thermal runaway fumes can be discharged through the venting manifold, reducing the risk of combustion or explosion of the battery component 1.

[0090] like Figure 2 and Figure 4 As shown, to further improve the safety of the battery component 1 during use in this embodiment, a heat transfer pipe 15 is connected to the portion of the polar terminal 131 of each individual battery 13 that extends out of the outer casing. The heat transfer pipe 15 exchanges heat with the polar terminal 131 of each individual battery 13. When the temperature of the battery component 1 is higher than a set threshold, the battery component 1 is cooled by introducing a lower temperature heat transfer medium into the heat transfer pipe 15. When the temperature of the battery component 1 is lower than the set threshold, the battery component 1 is heated by introducing a higher temperature heat transfer medium into the heat transfer pipe 15. By controlling the temperature of the heat transfer medium, it can be ensured that the battery component 1 always operates at the normal operating temperature.

[0091] like Figure 2 and Figure 4As shown, the top of the outer shell of the battery component 1 has two heat transfer tubes 15, each extending along the y-axis and arranged along the x-axis. Each polarity terminal 131 of the battery component 1 has a through groove. The two heat transfer tubes 15 are respectively embedded in the through grooves of the polarity terminals 131 located on different sides. One heat transfer tube 15 is embedded in the through groove of the positive polarity terminal 131 of the battery component 1, and the other heat transfer tube 15 is embedded in the through groove of the negative polarity terminal 131 of the battery component 1. The heat transfer tube 15 has a channel for the heat transfer medium to pass through, and heat exchange is performed on the polarity terminals 131 of the battery component 1 through the heat transfer tube 15.

[0092] Meanwhile, in this embodiment, an insulating sealant layer is laid on the top plate of the outer casing. The insulating sealant layer covers at least a portion of the structure of the heat transfer tube 15 and the polar terminal 131, with the top of the heat transfer tube 15 exposed, serving as an electrical connection. During the operation of the battery component 1, internal temperature changes may cause water vapor condensation. The insulating sealant layer can isolate external moisture, reduce internal humidity changes, and prevent water droplets from forming on the surfaces of the heat transfer tube 15 and the polar terminal 131, thus preventing short circuits and component corrosion caused by condensation. In addition, covering a portion of the structure of the heat transfer tube 15 and the polar terminal 131 within the sealant layer makes the connections between components tighter, reducing relative displacement between components under conditions such as vibration and impact, and enhancing the structural stability of the entire battery component 1.

[0093] Furthermore, because the polarity terminal 131 of the individual battery 13 is directly exposed to the external environment, there is a significant safety hazard during use due to the energized polarity terminal 131. Therefore, if... Figure 9 As shown, in this embodiment, an insulating protective cover 16 is provided on the outside of the battery component 1 to provide insulation protection for the polar terminals 131 of the individual battery 13. The insulating protective cover 16 avoids the potential safety hazards of the individual battery 13 polar terminals 131 being exposed during the operation of the battery component 1, and also avoids the problem of foreign objects from the external environment falling into the position of the individual battery 13 polar terminals 131 and causing a short circuit in the battery component 1, thereby improving the safety of the battery component 1.

[0094] like Figure 12 As shown, during the use of the battery component 1, the battery component 1 is mounted on the support frame 3 through an insulating mounting unit. The insulating mounting unit includes two insulating mounting seats 2, which are respectively installed at both ends of the battery component 1. The insulating mounting seats 2 not only position and install the battery component 1 in the x, y, and z directions, but also ensure that the outer shell of the battery component 1 does not contact the support frame 3, thus achieving insulation between each battery component 1 and the support frame 3, and improving the insulation reliability and safety of the battery component 1 during use.

[0095] To ensure reliable installation of the insulating mounting base 2 on the battery component 1, the structure of the insulating mounting base 2 is adapted to the outer shell structure of the battery component 1. For example... Figure 10 and Figure 11 As shown, the insulating mounting base 2 in this embodiment mainly consists of a support plate 21 that contacts the bottom of the outer shell of the battery component 1 and a vertical plate 22 that contacts the first end plate 111. The support plate 21 ensures that the bottom plate of the cylindrical body 12 of the battery component 1 does not contact the support frame 3, and the size of the support plate 21 meets the creepage distance requirements between the cylindrical body 12 and the support frame 3. The vertical plate 22 ensures that the first end plate 111 of the battery component 1 does not contact the support frame 3, and the size of the vertical plate 22 ensures the creepage distance requirements between the first end plate 111 and the support frame 3.

[0096] To facilitate installation with the first end plate 111, the inner side of the upright plate 22 of the insulating mounting base 2 has at least one mounting protrusion 24. The position and number of the mounting protrusion 24 match the position and number of the mounting grooves 113 on the first end plate 111. The thickness of the mounting protrusion 24 is less than or equal to the groove depth of the mounting groove 113 on the first end plate 111, so that after the mounting protrusion 24 is embedded into the first mounting groove 23, the outer side of the first end plate 111 is in close contact with the inner side of the upright plate 22 of the insulating mounting base 2. After the mounting protrusion 24 is embedded into the first mounting groove 23, the insulating mounting base 2 can provide a binding force in the z-direction to the first end plate 111 to position the battery component 1 in the z-direction.

[0097] Meanwhile, the inner side of the upright plate 22 of the insulating mounting base 2 has at least one first mounting groove 23 extending in the z-direction. The number of first mounting grooves 23 is the same as the number of first ribs 112 on the first end plate 111. In embodiment 1, taking four first ribs 112 as an example, the corresponding number of first mounting grooves 23 on the insulating mounting base 2 is four. Accordingly, mounting protrusions 24 can be set in the first mounting grooves 23 to match the structure of the first end plate.

[0098] Simultaneously, the dimensions of the first mounting groove 23 must match the dimensions of the first rib 112 so that the first rib 112 can be embedded into the first mounting groove 23. Specifically, the depth of the first mounting groove 23 is slightly greater than the thickness of the first rib 112, and the width of the first rib 112 is consistent with the width of the first mounting groove 23, or the width of the first mounting groove 23 is slightly greater than the width of the first rib 112. After the first rib 112 is embedded into the first mounting groove 23, the insulating mounting base 2 can provide a binding force in the x-direction to the first end plate 111 to position the battery component 1 in the x-direction.

[0099] In addition, the insulating mounting base 2 can be fixedly connected to the first end plate 111 to further fix the position of the battery component 1 and improve the installation reliability of the insulating mounting base 2 for the battery component 1.

[0100] like Figure 10 and Figure 11 As shown, in this embodiment, baffles 25 are also provided on both sides of the insulating mounting base 2, and the end face of each baffle 25 is parallel to the yz plane. After the insulating mounting base 2 is fitted onto the end of the battery component 1, the baffles 25 are located between the outer shells of adjacent battery components 1, which can improve the insulation reliability between adjacent battery components 1 when the battery components 1 are closely arranged. At the same time, the baffles 25 can also position the battery component 1 in the x direction, further improving the installation reliability of the battery component 1.

[0101] In addition, each baffle 25 has a second mounting groove 26 extending in the y direction on its inner side surface. The position of the second mounting groove 26 corresponds to the position of the concave-convex positioning structure 122 on the side plate 121 of the cylinder 12. After the insulating mounting seat 2 is installed at both ends of the battery component 1, the concave-convex positioning structure 122 of the cylinder 12 is embedded into the second mounting groove 26 on the inner side surface of the baffle 25, so that the insulating mounting seat 2 positions and installs the battery component 1 in the z direction, thereby further realizing the reliable installation of the battery component 1.

[0102] like Figure 11 As shown, in this embodiment, the outer side of the upright plate 22 of the insulating mounting base 2 is also provided with a mounting plate 27. The outer side of the upright plate 22 is the side of the upright plate 22 away from the battery component 1. The mounting plate 27 is a horizontal plate, which is located above the side beam of the support frame 3 during use, mainly to realize the fixed connection between the insulating mounting base 2 and the support frame 3. Specifically, the mounting plate 27 has a first connecting hole 28, and the connecting bolt passes through the first connecting hole 28 to fix it to the side beam of the support frame 3. In addition, to facilitate the connection, the first connecting hole 28 can be an oblong hole. The oblong hole can adjust the installation position of the insulating mounting base 2 in the x-direction, which can compensate for the installation error between the insulating mounting base 2 and the support frame 3 and ensure the reliability of the connection.

[0103] In this embodiment, the outer side of the upright plate 22 of the insulating mounting base 2 is also provided with ribs 29. The ribs 29 mainly realize the fixed connection between the insulating mounting base 2 and the first end plate 111. The number of ribs 29 is set according to the requirements, such as... Figure 11 As shown, there are four ribs 29 in this embodiment. Each rib 29 is perpendicular to the mounting plate 27 and fixed to the mounting plate 27. At least one rib 29 has a second connecting hole 210 that connects to the first end plate 111. The connecting screw passes through the second connecting hole 210 to connect with the first rib 112.

[0104] In this embodiment, the insulating mounting base 2 is made of insulating material, specifically reinforced nylon (PA66 and glass fiber), which ensures insulation while also providing a certain installation strength. Furthermore, during manufacturing, the support plate 21, upright plate 22, mounting plate 27, rib plate 29, and baffle plate 25 of the insulating mounting base 2 are all integrally formed to ensure reliability during use.

[0105] When the battery component 1 is in use, insulating mounting seats 2 are installed at both ends of the battery component 1. At this time, the inner side of the upright plate 22 of the insulating mounting seat 2 is in close contact with the outer side of the first end plate 111, and the insulating mounting seat 2 provides a binding force in the y direction to the battery component 1. The first rib 112 of the first end plate 111 is located in the first mounting groove 23, and the mounting protrusion 24 in the first mounting groove 23 is embedded in the mounting groove 113 of the first rib 112, so that the insulating mounting seat 2 provides binding forces in the z and x directions to the battery component 1. At the same time, the insulating mounting seat 2 can also be fixedly connected to the first rib 112 to further fix the position of the battery component 1.

[0106] Subsequently, the battery component 1 with the insulating mounting base 2 is placed on the support frame 3, and the insulating mounting base 2 is fixedly connected to the support frame 3. During the use of the battery component 1, the insulating mounting base 2 fixes each battery component 1 on the support frame 3 from multiple angles, preventing movement or tilting, thus ensuring that the battery component 1 can work stably and reliably.

[0107] In addition, the aforementioned insulating mounting base 2 also ensures that the outer shell of the battery component 1 does not contact the support frame 3, thereby achieving insulation between each battery component 1 and the support frame 3, and improving the insulation reliability and safety of the battery component 1 during use.

[0108] like Figure 12 As shown, to further improve the insulation between the battery component 1 and the support frame 3, the insulation mounting unit may also include an insulating pad 4 located inside the support frame 3. The insulating pad 4 improves the insulation performance between the battery component 1 and the support frame 3. The insulating pad 4 can be made of PP board, ABS board, or electrical board, etc. The insulating pad 4 is located inside the side beam extending along the y direction of the support frame 3, realizing the insulation between the outermost battery component 1 cylinder 12 and the support frame 3. At the same time, each insulating pad 4 also has a third mounting groove that cooperates with the concave and convex positioning structure 122 of the battery component 1 cylinder 12. The concave and convex positioning structure 122 of the outermost battery component cylinder 12 is embedded in the third mounting groove, which also improves the installation stability of the battery component 1.

Claims

1. An endplate assembly for a battery component, characterized in that, Including the first end plate; The outer side of the first end plate away from the inner cavity of the battery component has a mounting groove facing the inner cavity of the battery component. The mounting groove is used to cooperate with the insulating support.

2. The endplate assembly according to claim 1, characterized in that, The outer surface of the first end plate has at least one first rib extending in the z direction, and a mounting groove is provided on the first rib, which extends through the first rib in the x direction.

3. The end plate assembly according to claim 2, characterized in that, The first rib is integrally formed on the first end plate, and the first rib is provided with mounting holes.

4. The endplate assembly according to any one of claims 1 to 3, characterized in that, The first end plate has an explosion vent for mounting an explosion venting assembly. At the same time, the first end plate has a gas channel communicating with the explosion vent. The gas channel is formed by a second rib provided on the inner side of the first end plate.

5. A casing, characterized in that, It includes a cylindrical body with open ends and two end plate assemblies that are respectively sealed and fixed to the open ends of the cylindrical body, wherein the end plate assemblies are the end plate assemblies described in any one of claims 1 to 4.

6. The outer casing according to claim 5, characterized in that, The two side plates of the cylinder are respectively provided with concave and convex positioning structures for cooperating with the insulating mounting base, and each concave and convex positioning structure extends along the y direction.

7. The outer casing according to claim 6, characterized in that, The two side plates of the cylinder are respectively provided with third ribs to increase the strength of the cylinder, and each third rib extends along the y direction.

8. The outer casing according to claim 7, characterized in that, The concave-convex positioning structure and the third rib are integrally formed on the cylinder.

9. A battery component, characterized in that, It includes a housing and a plurality of individual batteries arranged in the housing along the y-direction; the housing adopts the housing described in any one of claims 5 to 8.

10. The battery component according to claim 9, 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.

11. The battery component according to claim 10, characterized in that, An explosion venting assembly connected to the shared chamber is installed on the explosion vent of the first end plate.

12. The battery component according to claim 10, characterized in that, Each individual battery 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 battery cell.

Images