Battery pack mounting rack and battery pack

Abstract

This invention belongs to the field of batteries, specifically a battery pack mounting frame and a battery pack. The battery pack mounting frame includes a support frame; the support frame includes a first side beam and a second side beam; at least one of the two first side beams is a hollow component, the inner cavity of which serves as a venting confluence channel; simultaneously, the hollow component has multiple flue gas branch pipes communicating with the venting confluence channel, and a flue gas exhaust port for discharging thermal runaway flue gas from the venting confluence channel; this invention integrates the venting confluence channel within the first side beam of the support frame, eliminating the need for a separate thermal runaway flue gas exhaust pipeline; furthermore, the bottom of each first side beam has multiple strip-shaped protrusions, which reduce friction during support frame installation, facilitating battery pack installation and disassembly. Additionally, compared to a support frame with mounting rollers, the strip-shaped protrusions reduce the height of the support frame, saving battery pack installation space.

Description

Technical Field

[0001] This invention belongs to the field of batteries, specifically relating to a battery pack mounting bracket and 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. Energy storage devices, due to their advantages such as portability, flexibility, and high efficiency, are widely used in power systems, transportation, aerospace, and other fields.

[0003] Existing energy storage devices on the market include a housing, a support frame inside the housing, and multiple battery components fixed on the support frame. To ensure the safe use of the battery components, the thermal runaway flue gas of each battery component is discharged through a separate flue gas pipeline. The flue gas pipeline and support frame occupy a large installation space of the energy storage housing, which makes the installation space of each component of the energy storage device relatively limited. In addition, the use of a large number of pressure relief pipes and manifolds in the above thermal runaway flue gas emission devices also increases the manufacturing cost of the energy storage device. Summary of the Invention

[0004] This invention provides a battery pack mounting bracket and a battery pack. The battery pack mounting bracket supports the battery components and also integrates a venting and current-carrying channel and a strip-shaped protrusion. These two structures save installation space for the battery components and improve the energy density of the battery components.

[0005] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0006] A battery pack mounting bracket includes a support frame; the support frame includes two first side beams extending along the x-direction and two second side beams extending along the y-direction; at least one of the two first side beams is a hollow component, the inner cavity of which serves as a venting confluence channel; the hollow component also has multiple flue gas branch pipes communicating with the venting confluence channel, and a flue gas outlet for discharging thermal runaway flue gas from the venting confluence channel; the bottom of each first side beam has multiple strip-shaped protrusions arranged along the x-direction.

[0007] Furthermore, the flue gas branch pipe is located at the top of the first side beam, and both first side beams have multiple connecting bolts, each of which is welded to the top of the first side beam.

[0008] Furthermore, the first side beam is formed by bending sheet metal parts, including a hollow beam body with a rectangular cross section and a support plate extending from the bottom of the hollow beam body to support the battery components. The bottom surface of the support plate is flush with the bottom surface of the hollow beam body. A portion of each strip protrusion is fixed to the bottom of the hollow beam body, and another portion is fixed to the bottom of the support plate.

[0009] Furthermore, the first and second side beams of the support frame are fixedly connected by welding.

[0010] The present invention also provides a battery pack, which includes multiple battery components, an insulating mounting unit, and the aforementioned battery pack mounting frame; each battery component includes a housing and multiple individual batteries arranged in the housing along the y-direction, and an explosion venting assembly is installed on the explosion vent of the housing; the multiple battery components are arranged sequentially on a support frame along the x-direction, and the explosion venting assembly of each battery component is connected to a flue gas branch pipe on the first side beam in a one-to-one correspondence; the insulating mounting unit includes insulating mounting seats installed at both ends of each battery component and an insulating pad located on the inner side of the second side beam, the insulating mounting seat includes a support plate that contacts the bottom of the battery component and a vertical plate that contacts the end of the battery component, and the outer surface of the vertical plate has a mounting plate that is fixedly connected to the first side beam of the support frame.

[0011] Furthermore, the explosion venting components of each battery component are connected to the flue gas branch pipe via insulated flexible hoses and secured with clamps.

[0012] Furthermore, there is an insulating buffer pad between the first side beam and the mounting plate of each insulating mounting base, and the insulating buffer pad has a first clearance notch corresponding to the position of each flue gas branch pipe; the mounting plate has a second clearance notch corresponding to the position of each flue gas branch pipe.

[0013] Furthermore, the outer casing 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 assembly includes a first end plate, the outer side of the first end plate has at least one first rib extending in the z direction, the first rib has a mounting groove, the mounting groove extends through the first rib in the x direction; the inner side of the upright plate of the insulating mounting base has at least one first mounting groove extending in the z direction, the first mounting groove has a mounting protrusion, the first rib of the first end plate is located in the first mounting groove, and the mounting protrusion in the first mounting groove is embedded in the mounting groove of the first rib.

[0014] Furthermore, baffles are provided on both sides of the insulating mounting base, and a second mounting groove extending in the y direction is provided on the inner side of each baffle. Concave and convex positioning structures extending in the y direction are respectively provided on the two side plates of the cylinder, and the concave and convex positioning structures of the cylinder are embedded in the second mounting grooves on the inner side of the baffles.

[0015] Furthermore, the outer casing is provided with a shared chamber; the inner cavity of the shared chamber is connected to the inner cavity of all individual batteries; a clearance hole is provided on the top plate of the outer casing corresponding to the polarity terminal of each individual battery; the polarity terminal of each individual battery extends out of the clearance hole, and the area of ​​the top plate of the outer casing corresponding to the clearance hole is fixedly sealed with the individual battery casing, and the shared chamber inside the outer casing is connected to the explosion relief assembly.

[0016] 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.

[0017] Compared with the prior art, the advantages of the technical solution of the present invention are as follows:

[0018] 1. The battery pack mounting frame of this invention, while providing stable support for each battery component, also integrates a venting manifold. This venting manifold is integrated within the first side beam of the support frame, eliminating the need for separate thermal runaway gas emission pipelines. This reduces the number of pipelines for thermal runaway gas, lowers the difficulty of battery pack assembly, and reduces the manufacturing cost of the battery pack. This venting manifold is connected to the venting components of all battery components within the battery pack. When a single cell in any battery component experiences thermal runaway, its thermal runaway gas can be orderly discharged through the venting manifold, reducing the risk of thermal runaway propagation and battery component explosion, and improving the safety performance of the battery pack.

[0019] Meanwhile, the bottom of each first side beam also has multiple strip-shaped protrusions for support. These protrusions reduce friction during support frame installation, facilitating the installation and removal of the battery pack. Furthermore, compared to support frames with rollers, the strip-shaped protrusions reduce the height of the support frame, saving installation space for battery components. This allows for the arrangement of more battery components within a limited space, increasing the energy density of the battery components. Additionally, the strip-shaped protrusions provide easier support strength compared to rollers, and the elimination of rollers and their fixing components also reduces the cost of the mounting frame to some extent.

[0020] 2. In the battery pack mounting bracket of the present invention, the flue gas branch pipe is installed on the top of the first side beam, which facilitates the connection between the flue gas branch pipe and the explosion relief assembly of the battery component. At the same time, multiple connecting bolts are welded to the top of each first side beam. The connecting bolts not only facilitate the connection between the first side beam and the insulating mounting base, but also, by fixing the connecting bolts to the top of the first side beam by welding, will not affect the sealing performance of the explosion relief manifold inside the first side beam.

[0021] 3. In the battery pack mounting bracket of the present invention, the first side beam is formed by bending sheet metal, and the bent first side beam is an integral structure. The first side beam made in this way has good bending strength, can effectively bear the weight of the battery components and the stress during operation, and improve the support stability of the first side beam. At the same time, the first side beam formed by bending sheet metal can also reduce the weight of the support frame, making the support frame lightweight.

[0022] In addition, a portion of each strip protrusion is fixed to the bottom of the hollow beam body, and another portion is fixed to the bottom of the support plate. Each strip protrusion reinforces the connection between the support plate and the hollow beam body, effectively bearing the weight of the battery components and the stress during operation, thus improving the support stability of the first side beam.

[0023] 4. In the battery pack mounting frame of the present invention, the first side beam and the second side beam are fixedly connected by welding. Compared with other connections, the welding connection improves the connection strength between the two, thereby improving the strength and support stability of the support frame.

[0024] 5. In the battery pack of the present invention, multiple battery components are arranged sequentially on the support frame along the x-direction. The explosion relief components of each battery component are connected one-to-one with the flue gas branch pipes on the first side beam. The explosion relief confluence channel in the first side beam can directionally discharge the thermal runaway flue gas generated by the thermal runaway battery component, and then perform centralized treatment to prevent the thermal diffusion of the thermal runaway battery component, and avoid the situation where thermal runaway of individual battery components causes thermal runaway combustion or explosion of other battery components or even the entire battery pack due to thermal diffusion.

[0025] Meanwhile, multiple battery components are insulated from the support frame by insulating mounting bases at both ends of each battery component and insulating pads located inside the second side beam, which improves the insulation reliability and safety of the battery components during use.

[0026] 6. In the battery pack of this invention, the flue gas branch pipe and the explosion venting assembly of the battery components are connected by an insulating flexible hose. The deformation of the insulating hose can compensate for the installation deviation of the explosion venting assemblies of each battery component, which reduces the installation requirements of each battery component and eliminates the need to readjust the position of the battery components, thus reducing the installation difficulty of the battery components. At the same time, the insulating flexible hose can also achieve insulation between the battery components and the support frame, eliminating the need to add corresponding insulating pipes to the explosion venting assembly of the battery components, making the structure of the explosion venting assembly relatively simple.

[0027] After the aforementioned insulated hoses are connected to the flue gas branch pipes and explosion venting components, clamps are used to achieve simple and quick fastening. The clamps make on-site installation more convenient and improve assembly efficiency. At the same time, the clamps also ensure a tight connection between the insulated hoses and the explosion venting components, preventing loosening and improving the reliability of the connection between the insulated hoses and the explosion venting components.

[0028] 7. In the battery pack of the present invention, an insulating buffer pad is provided between the first side beam and the mounting plates of each insulating mounting base. This insulating buffer pad not only further improves the insulation performance between the support frame and the battery components, but also presses the mounting plates of each insulating mounting base firmly against the top surface of the first side beam, improving the installation reliability of the insulating mounting base. In addition, the insulating buffer pad can also adjust the height of each battery component in the z-direction, ensuring that the height of each battery component is consistent, which facilitates electrical connection and heat transfer pipe connection between the battery components.

[0029] 8. In the battery pack of the present invention, to achieve reliable installation of the battery components, a first rib is provided on the outer side of the first end plate of the end plate assembly, and an installation groove is provided on the first rib. The insulating mounting seat has a first installation groove and an installation protrusion. When the battery components are in use, the two insulating mounting seats are respectively installed at both ends of the battery components. 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 components. The first rib of the first end plate is located in the first installation groove of the insulating mounting seat, and the installation protrusion of the insulating mounting seat is embedded in the installation groove of the first rib, so that the insulating mounting seat provides binding forces in the z and x directions to the battery components. Through the above structure and cooperation, the insulating mounting seats can provide forces to the battery components in multiple directions, so that the battery components can maintain a relatively stable position and will not move or tilt, ensuring that the battery components can work stably and reliably.

[0030] 9. In the battery pack of the present invention, baffles are provided on both sides of the insulating mounting base. The baffles are located between the cylindrical bodies of adjacent battery components, which can improve the insulation performance between adjacent battery components even when the battery components are closely arranged. Simultaneously, the cylindrical body of the battery component has a concave-convex positioning structure extending along the y-direction. The concave-convex positioning structure of the cylindrical body is embedded in the second mounting groove on the inner side of the baffle, so that the insulating mounting base provides a binding force in the z-direction to the cylindrical body of the battery component. After the insulating mounting base is installed at the end of the battery component, the insulating mounting base has a mounting fit with the end plate assembly and the cylindrical body of the battery component, thereby positioning and installing the battery component through multiple areas and positions to improve the operational reliability of the battery component.

[0031] 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.

[0032] 10. In the battery pack of the present invention, the battery component places multiple individual cells within a housing having a shared chamber. The shared chamber is connected to the internal cavity of each individual cell located within the housing, 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.

[0033] 11. In the battery pack of the present invention, 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.

[0034] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the assembly of the support frame and battery components in Example 1;

[0036] Figure 2 This is a schematic diagram of the battery pack mounting bracket in Example 1. Figure 1 ;

[0037] Figure 3 This is a schematic diagram of the battery pack mounting bracket in Example 1. Figure 2 ;

[0038] Figure 4 This is a cross-sectional view of the battery pack mounting bracket in Example 1;

[0039] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0040] Figure 6 This is a schematic diagram of the battery pack structure in Example 2;

[0041] Figure 7 This is a schematic diagram of the assembly of the battery component and the insulating mounting base in Example 2;

[0042] Figure 8 This is a schematic diagram of the assembly process of the battery component and the insulating mounting base in Example 2;

[0043] Figure 9 This is a schematic diagram of the battery component in Example 2;

[0044] Figure 10 This is a schematic diagram of the insulating mounting base in Example 2. Figure 1 ;

[0045] Figure 11 This is a schematic diagram of the insulating mounting base in Example 2. Figure 2 ;

[0046] Figure 12 This is a schematic diagram of the end plate assembly of the battery component in Example 3;

[0047] Figure 13This is an exploded view of the battery pack in Example 2;

[0048] Figure 14 This is a schematic diagram of the insulating pad in Example 2.

[0049] Reference numerals: 1-Battery component, 2-Insulating mounting base, 3-Support frame, 4-Insulating pad, 5-Insulating buffer 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-Second rib, 126-Gas 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, 271-Second clearance notch, 31-First side beam, 32-Second side beam, 33-Fluorite branch pipe, 34-Strip protrusion, 35-Connecting bolt, 311-Support plate, 312-Hollow beam body, 313-Explosion relief confluence channel, 314-Smoke exhaust port, 41-Support plate, 42-Upright plate, 43-Third mounting groove, 51-First clearance notch. Detailed Implementation

[0050] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0051] 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 invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0052] 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 via 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 invention according to the specific circumstances.

[0053] Furthermore, in the description of this invention, 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 invention 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 invention.

[0054] This invention provides a battery pack mounting bracket for supporting and fixing multiple battery components constituting a battery pack. The battery components can be existing battery packs or battery modules, or high-capacity batteries. The battery packs or modules can consist of a housing and multiple individual batteries connected in parallel or series within the housing. The high-capacity batteries described herein are batteries composed of multiple individual batteries connected in parallel with a shared electrolyte system. The structure of such high-capacity batteries is detailed in CN220797038U, CN117878492A, CN220324596U, CN118299739A, CN220324640U, and CN118800999A.

[0055] 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.

[0056] The battery pack mounting frame of this invention includes a support frame, which consists of two first side beams extending along the x-direction and two second side beams extending along the y-direction. This support frame provides stable support for each battery component and also integrates a venting manifold channel. By integrating the venting manifold channel within the first side beams of the support frame, the need for separate thermal runaway gas emission pipelines is eliminated, reducing the number of pipelines for thermal runaway gas, simplifying battery pack assembly, and lowering manufacturing costs. This venting manifold channel is connected to the venting components of all battery components within the battery pack. When a single cell in any battery component experiences thermal runaway, its thermal runaway gas can be orderly discharged through the venting manifold channel, reducing the risk of thermal runaway propagation and battery component explosion, and improving the safety performance of the battery pack.

[0057] Meanwhile, the bottom of each first side beam also has multiple strip-shaped protrusions for support. These protrusions reduce friction during support frame installation, facilitating the installation and removal of the battery pack. Furthermore, compared to support frames with rollers, the strip-shaped protrusions reduce the height of the support frame, saving installation space for battery components. This allows for the arrangement of more battery components within a limited space, increasing the energy density of the battery components.

[0058] Example 1

[0059] like Figure 1 As shown, this embodiment provides a battery pack mounting bracket, mainly used to support multiple battery components 1 in the battery pack. Each battery component 1 includes a housing and multiple individual batteries 13 disposed within the housing. The housing has a vent 117 communicating with the inner cavity of the housing. A vent assembly 14 is installed on the vent 117. The vent assembly 14 can be a hollow component with a vent membrane at one end, or it can be a vent valve or other structures. Through the vent 117 and the vent assembly 14, the gas in the battery component 1 can be discharged in a timely manner, avoiding safety hazards caused by high pressure inside the housing of the battery component 1.

[0060] Typically, multiple battery components 1 are arranged sequentially to form a cuboid structure. For ease of description, the direction in which the multiple battery components 1 are arranged is defined as the x-direction, the height direction of the battery component 1 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.

[0061] like Figure 2As shown, the support frame 3 in this embodiment is a rectangular frame, mainly composed of two first side beams 31 and two second side beams 32. Each first side beam 31 extends along the x-direction, and each second side beam 32 extends along the y-direction. The two first side beams 31 and two second side beams 32 are arranged at intervals and connected end-to-end to form a rectangular frame structure. Specifically, the first side beams 31 and second side beams 32 can be assembled into a rectangular frame by welding or screwing. In this embodiment, the first side beams 31 and second side beams 32 are fixedly connected by welding. Compared to other connections, welding increases the connection strength, thereby improving the strength and support stability of the support frame 3.

[0062] In this embodiment, the structure of the second side beam 32 is not required, as long as the frame structure formed by its combination with the first side beam 31 is used to install the battery component 1. Square steel is the best choice for the second side beam 32, as it can increase the stability and support strength of the support frame 3. In other embodiments, angle steel, U-shaped steel or I-shaped steel can also be used.

[0063] Of the two first side beams 31, at least one first side beam 31 is a hollow component, and the interior of the hollow component has an explosion relief confluence channel 313; at the same time, the first side beam 31 has multiple flue gas branch pipes 33 connected to the explosion relief confluence channel 313, and a flue gas outlet 314 for discharging the thermal runaway flue gas inside the explosion relief confluence channel 313.

[0064] When the support frame 3 is in use, each flue gas branch pipe 33 is connected to the explosion relief component 14 of each battery component 1. When the individual battery 13 in the battery component 1 experiences thermal runaway, the thermal runaway flue gas opens the explosion relief component 14 on each battery component 1 and enters the explosion relief confluence channel 313 of the first side beam 31, and is then discharged directionally through the exhaust port 314.

[0065] When installing each flue gas branch pipe 33, it can be installed on the top of the first side beam 31 or on the outer wall of the first side beam 31. Relatively speaking, fixing the flue gas branch pipe 33 to the top of the first side beam 31 not only facilitates the connection between the flue gas branch pipe 33 and the explosion relief assembly 14 and saves installation space, but also allows for the connection between the flue gas branch pipe 33 and the explosion relief assembly 14 to be achieved using a shorter connecting pipe. Specifically, during the installation of the flue gas branch pipe 33, the first side beam 31 has multiple openings communicating with the explosion relief manifold 313. The flue gas branch pipe 33 can be fixed to the openings by welding, threading, or other methods.

[0066] In this embodiment, the first side beam 31 includes a support plate 311 for supporting the battery component 1, specifically a support plate 311 for supporting the battery component and a hollow beam body 312 for fixing the battery component 1. The support plate 311 and the hollow beam body 312 form an L-shaped structure, which facilitates the support and installation of the battery pack. The first side beam 31 can be formed in various ways, for example, by using different combinations of steel profiles. Specifically, it can be composed of angle steel and square steel, with the angle steel located inside the square steel. The vertical plate of the angle steel is connected to one of the vertical plates of the square steel, the horizontal plate of the angle steel serves as the support plate 311, and the square steel is used as the hollow beam body 312.

[0067] like Figure 4 and Figure 5 As shown, in this embodiment, the first side beam 31 is formed by bending sheet metal. Specifically, the first side beam 31 is formed by bending sheet metal, including a hollow beam body 312 with a rectangular cross-section and a support plate extending from the bottom of the hollow beam body 312 to support the battery component. The bottom surface of the support plate 311 is flush with the bottom surface of the hollow beam body 312. This manufacturing method provides the first side beam 31 with good bending strength, effectively bearing the weight of the battery component 1 and the stress during operation, thus improving the support stability of the first side beam 31. Furthermore, the first side beam 31 formed by bending sheet metal ensures support stability while reducing the weight of the support frame 3, making the support frame 3 lightweight.

[0068] The aforementioned support frame 3 supports the battery component 1 and also secures it in place. To facilitate the secure installation of the battery component 1, each first side beam 31 has multiple connecting bolts 35, which are welded to the top of the first side beam 31. These connecting bolts 35 not only facilitate the connection between the first side beam 31 and the insulating mounting seats 2 at both ends of the battery component 1, but also, by welding the connecting bolts 35 to the top of the first side beam 31, the sealing performance of the explosion venting manifold 313 within the first side beam 31 is not affected.

[0069] like Figure 3 As shown, the bottom of the first side beam 31 in this embodiment also has multiple strip-shaped protrusions 34 for support. These protrusions 34 are arranged along the x-direction and protrude from the bottom of the first side beam 31, reducing the friction area during installation of the support frame 3, thereby reducing friction and facilitating the installation and removal of the battery pack. In specific manufacturing, these protrusions 34 can be made of wear-resistant materials to improve installation reliability.

[0070] Compared to the support frame 3 for mounting rollers, the strip protrusion 34 reduces the height of the support frame 3, thus saving installation space. This invention, by combining these two structures, saves installation space for the battery pack, thereby enabling the arrangement of more battery components 1 within a limited space and increasing the energy density of the battery components 1.

[0071] In addition, when the strip protrusions 34 are fixed, a portion of the strip protrusions 34 is fixed to the bottom of the hollow beam body 312, and another portion is fixed to the bottom of the support plate 311. Each strip protrusion 34 covers the connection between the support plate 311 and the hollow beam body 312, which strengthens the connection between the support plate 311 and the hollow beam body 312, effectively bearing the weight of the battery component 1 and the stress during operation, and improving the support stability of the first side beam 31.

[0072] Example 2

[0073] like Figure 6 , Figure 7 and Figure 8 As shown, this embodiment provides a battery pack, which includes multiple battery components 1, an insulating mounting unit, and the battery pack mounting frame of Embodiment 1. Each battery component 1 includes a housing and multiple individual batteries 13 arranged along the y-direction within the housing. An explosion vent 117 is mounted on the explosion vent 117 of each battery component 1's housing. Multiple battery components 1 are arranged sequentially along the x-direction on a support frame 3, and the explosion vent 14 of each battery component 1 is connected one-to-one with a flue gas branch pipe 33 on the first side beam 31. The insulating mounting unit includes insulating mounting seats 2 installed at both ends of each battery component 1 and an insulating pad 4 located inside the second side beam 32. The two insulating mounting seats 2 are respectively located at both ends of the battery component 1. When each battery component 1 is mounted on the support frame 3, the insulating mounting seats 2 also ensure that the housing of the battery component 1 does not contact the support frame 3, achieving insulation between each battery component 1 and the support frame 3, thus improving the safety of the battery component 1 during use.

[0074] like Figure 6 As shown, in this embodiment, the explosion venting components 14 of each battery component 1 and the flue gas branch pipe 33 on the support frame 3 can be connected via insulated flexible hoses and fixed with clamps. The deformation of the insulated flexible hoses can compensate for installation deviations of the explosion venting components 14 of each battery component 1, eliminating the need to readjust the position of the battery component 1, reducing the installation difficulty of the battery component 1, and minimizing installation requirements for each battery component 1. Simultaneously, the insulated flexible hoses also provide insulation between the battery component 1 and the support frame 3, eliminating the need to add corresponding insulating fittings to the explosion venting components 14 of the battery component 1, ensuring the safety of the battery component 1 during use.

[0075] Furthermore, after the insulating hose is connected to the flue gas branch pipe 33 and the explosion relief assembly 14 respectively, a simple and quick connection can be achieved with the help of clamps. The clamps can make the insulating hose and the tee pipe tightly connected, preventing loosening and improving the reliability of the connection between the insulating hose and the tee pipe. On-site installation is more convenient and assembly efficiency is improved.

[0076] In other embodiments, a metal bellows can be used to connect the explosion relief assembly 14 and the flue gas branch pipe 33 by means of threads. However, in this case, the explosion relief assembly 14 needs to be equipped with corresponding insulating pipes to achieve the corresponding insulation.

[0077] like Figure 7 and Figure 8 As shown, this embodiment also optimizes the structure of the battery component 1. Specifically, the end plate assembly 11 of the battery component 1 shell is optimized, and an insulating mounting base 2 is provided to cooperate with the end plate assembly 11. The optimized shell structure of the battery component 1 is installed in cooperation with the insulating mounting bases 2 at both ends of the battery component 1, so that the insulating mounting base 2 can position and install the battery component 1 in multiple directions to ensure the reliability of the battery component 1 during operation.

[0078] like Figure 8 and Figure 9 As shown, the battery component 1 in this embodiment includes a housing and a plurality of individual batteries 13 arranged in the housing along the y-direction. The housing includes a cylindrical body 12 with open ends and two end plate assemblies 11 respectively sealed and fixed to the open ends of the cylindrical body 12. 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 ends 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 ends of the cylindrical body 12. The area of ​​the first end plate 111 can be slightly larger than the area of ​​the open ends of the cylindrical body 12, or it can be the same as the area of ​​the open ends of the cylindrical body 12. Specifically, the first end plate 111 can be fixed to the open ends 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 ends of the cylindrical body 12. After connection, the sealing between the first end plate 111 and the cylindrical body 12 must be ensured.

[0079] like Figure 9As shown, the outer surface of the first end plate 111 has at least one first rib 112 extending along the z-direction. The first rib 112 has a mounting groove 113 that penetrates the first rib 112 in the x-direction. Each first rib 112 protrudes from the outer surface of the first end plate 111. The outer surface of the first end plate 111 is the side of the first end plate 111 away from the open end of the cylinder 12. Correspondingly, the inner surface of the first end plate 111 is the side of the first end plate 111 facing the open end of the cylinder 12. In this embodiment, the number of first ribs 112 is not required, but at least one is required. If there are multiple first ribs 112, they are arranged along the x-direction and are parallel to each other. In this embodiment, the outer side of the first end plate 111 has four first ribs 112. Each first rib 112 is a strip-shaped protrusion 34 extending along the z direction. There are no requirements for the cross-section of the strip-shaped protrusion 34. In this embodiment, the cross-section of the strip-shaped protrusion 34 is rectangular. In other embodiments, it can also be a semi-circular structure.

[0080] In specific manufacturing, the first rib 112 can be integrally formed onto the first end plate 111, or it can be processed separately and then fixed onto the first end plate 111 by welding or other methods. Compared to the structure of processing separately and then connecting, the first rib 112 being integrally formed onto the first end plate 111 is the preferred method. Integral forming not only further improves the strength of the first end plate 111, but also facilitates the processing of the first end plate 111, resulting in a lower manufacturing cost for the first end plate 111.

[0081] like Figure 9 As shown, at least one first rib 112 in this embodiment is provided with a mounting groove 113. 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 fabrication of the mounting groove 113.

[0082] In this embodiment, a first rib 112 is provided on the outer side of the first end plate 111. The first rib 112 can increase the overall strength of the first end plate 111. At the same time, an installation groove 113 is provided on the first rib 112, so that the first end plate 111 can be installed and cooperated with the insulating mounting base 2 through the first rib 112 and the installation groove 113, thereby improving the reliability of the battery component 1 during use.

[0083] like Figure 8 , Figure 10 and Figure 11 As shown, the insulating mounting base 2 in this embodiment includes a support plate 21 that contacts the bottom of the cylinder 12 and a vertical plate 22 that contacts the first end plate 111. The outer side of the vertical plate 22 has a mounting plate 27 that is connected to the support frame 3. The support plate 21 ensures that the bottom plate of the cylinder 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 cylinder 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.

[0084] 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 first mounting groove 23 extending along 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. Taking four first ribs 112 as an example, the corresponding number of first mounting grooves 23 on the insulating mounting base 2 is four, arranged along the x-direction. Simultaneously, the dimensions of the first mounting grooves 23 must match the dimensions of the first ribs 112 so that the first ribs 112 can be embedded into the first mounting grooves 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 the same as 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 and install the battery component 1 in the x direction.

[0085] like Figure 10As shown, the first mounting groove 23 is further provided with mounting protrusions 24. The position and number of the mounting protrusions 24 match the position and number of the mounting grooves 113 on the first end plate 111. The thickness of the mounting protrusions 24 is less than or equal to the groove depth of the mounting grooves 113 on the first end plate 111, so that after the mounting protrusions 24 are embedded in the first mounting groove 23, the outer side of the first end plate 111 can be tightly attached to the inner side of the upright plate 22 of the insulating mounting base 2. After the mounting protrusions 24 are embedded in 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 and install the battery component 1 in the z-direction.

[0086] Furthermore, in this embodiment, the first end plate 111 can be fixedly connected to the insulating mounting base 2 to further fix the position of the battery component 1 and improve the installation reliability of the insulating mounting base 2 on the battery component 1. Specifically, during installation, 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, as... Figure 4 As shown, a mounting hole 114 for fixed connection with the insulating mounting base 2 can be provided on the first rib 112. This 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 connectors using adhesive or other methods. It should be noted that the position of the mounting hole 114 should preferably avoid the position of 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 position of 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.

[0087] 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 inner cavity of 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 35 passes through the first connecting hole 28 to be fixedly connected to the side beam of the support frame 3. In addition, in order 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.

[0088] like Figure 11 As shown, the outer side of the upright plate 22 of the insulating mounting base 2 in this embodiment is also provided with a rib plate 29. The rib plate 29 mainly realizes the fixed connection between the insulating mounting base 2 and the first end plate 111. The number of rib plates 29 is set according to the requirements. In this embodiment, there are four rib plates 29. Each rib plate 29 is perpendicular to the mounting plate 27 and fixed to the mounting plate 27. At least one rib plate 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 realize the connection with the first rib 112.

[0089] 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.

[0090] After the battery component 1 is installed at both ends by the aforementioned insulating mounting base 2, the outer side of the first end plate 111 is in close contact with the insulating mounting base 2, and the insulating mounting base 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 base 2, and the mounting protrusion 24 in the first mounting groove 23 is embedded in the mounting groove 113 of the first rib 112. At this time, the insulating mounting base 2 provides binding forces in the z and y directions to the battery component 1, so that the insulating mounting base 2 provides binding forces or forces to the battery component 1 in multiple directions, thereby providing positioning for the battery component 1 in multiple directions, realizing the positioning and installation of the battery component 1 in multiple directions, so as to achieve reliable installation of the battery component 1.

[0091] This embodiment can further optimize the structure of the battery component 1 and the insulating mounting base 2. When optimizing the battery component 1, the structure of the cylindrical body 12 of the battery component 1 is specifically optimized.

[0092] like Figure 9 As 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). The cylindrical body 12 includes a top plate, a bottom plate, and two side plates. The cylindrical body 12 is a rectangular cylindrical body made of metal material. To facilitate processing and production, the cylindrical body 12 can be manufactured by integral molding. Integral molding methods include casting, extrusion, 3D printing, etc. Considering both cost and processing efficiency, this embodiment uses extrusion to form the cylindrical body 12. In this embodiment, the two side plates 121 of the cylindrical body 12 are respectively provided with concave-convex positioning structures 122. Each concave-convex positioning structure 122 extends along the y direction and is a strip-shaped protrusion 34 structure. The concave-convex positioning structure 122 can cooperate with the insulating mounting base 2 to further position and install the battery component 1 in the z direction, improving the installation reliability of the battery component 1.

[0093] Furthermore, in this embodiment, the two side plates 121 of the cylindrical body 12 are each provided with a second rib 123, and each second rib 123 extends along the y-direction. The second rib 123 can improve the strength of the cylindrical body 12. Compared with increasing the strength by increasing the wall thickness of the cylindrical body 12, the second rib 123 not only improves the strength of the cylindrical body 12, but also reduces the amount of material used in the cylindrical body 12, thereby reducing the cost and weight of the cylindrical body 12. The second rib 123 and the concave-convex positioning structure 122 are both integrally formed on the cylindrical body 12, which not only further improves the strength, but also facilitates processing and has a lower manufacturing cost. The second 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. During manufacturing, the concave-convex positioning structure 122 and the second rib 123 can be integrally formed on the cylindrical body 12, specifically through an extrusion process. This manufacturing method not only further improves the strength, but also facilitates processing and has a lower manufacturing cost.

[0094] 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.

[0095] Furthermore, the inner side of the baffle 25 has a second mounting groove 26 extending in the y direction. The position of the second mounting groove 26 corresponds to the position of the concave-convex positioning structure 122 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 of the baffle 25. 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.

[0096] like Figure 7 and Figure 8As shown, in use, two insulating mounting seats 2 are installed at both ends of the battery component 1. 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. The insulating mounting seat 2 provides a binding force in the y-direction to the battery component 1. The first rib 112 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. At this time, the insulating mounting seat 2 provides binding forces in the z-direction and x-direction to the battery component 1. At the same time, the insulating mounting seat 2 can be fixedly connected to the first rib 112 to further fix the position of the battery component 1. Subsequently, the battery component 1 with the insulating mounting seat 2 is placed on the support frame 3, and the insulating mounting seat 2 is fixedly connected to the support frame 3.

[0097] When the insulating mounting base 2 is fixed on the support frame 3, the insulating mounting base 2 secures each battery component 1 from multiple angles, preventing movement or tilting, thus ensuring stable and reliable operation of the battery component 1. Simultaneously, the insulating mounting base 2 also ensures that the outer shell of the battery component 1 does not contact the support frame 3, achieving insulation between each battery component 1 and the support frame 3, thereby improving the insulation reliability and safety of the battery component 1 during use.

[0098] like Figure 13 As shown, in this embodiment, an insulating buffer pad 5 extending along the x-direction is also provided between the support frame 3 and the mounting plates 27 of each insulating mounting base 2. The insulating buffer pad 5 not only further improves the insulation performance between the support frame 3 and the battery component 1, but also presses the mounting plates 27 of each insulating mounting base 2 firmly against the top surface of the support frame 3, improving the installation reliability of the insulating mounting base 2. This insulating buffer pad 5 can be implemented using silicone pads or the like. Furthermore, the insulating buffer pad 5 can also adjust the height of each battery component 1 in the z-direction, ensuring that the height of each battery component 1 is consistent, facilitating electrical connections, heat transfer pipe 15 connections, and flue gas pipe connections between the battery components 1.

[0099] If the flue gas branch pipe 33 is installed on the top of the first side beam, then the above-mentioned insulating buffer pad 5 has a first clearance notch 51 through which the flue gas branch pipe 33 passes, and the mounting plate has a second clearance notch 271 corresponding to the position of each flue gas branch pipe, so that the flue gas branch pipe 33 can pass through the first clearance notch 51 and the second clearance notch 271 to connect with the explosion relief assembly 14 of the battery component 1.

[0100] like Figure 13 and Figure 14As 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 second side beam, achieving insulation between the outermost battery component 1's cylinder 12 and the support frame 3. The insulating pad 4 has an L-shaped cross-section and may specifically include a support plate 41 that contacts the bottom plate of the cylinder 12 and a vertical plate 42 that contacts the side plate 121 of the cylinder 12. The dimensions of the support plate 41 meet the creepage distance requirements between the cylinder 12 and the support frame 3. The vertical plate 42 extends into a second side beam in the z-direction. This insulating pad 4 protects the battery components 1 on both sides of the battery pack, ensuring that the outer shells of the battery components 1 on both sides do not contact the support frame 3, thus improving the insulation performance between the battery component 1 and the support frame 3. The insulating pad 4 may be made of PP board, ABS board, or electrical board, etc.

[0101] In addition, each insulating pad 4 also has a third mounting groove 43 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 1 cylinder 12 is embedded in the third mounting groove 43, which also improves the installation stability of the battery component 1.

[0102] Example 3

[0103] like Figure 8 and Figure 9 As shown, this embodiment provides a battery pack, and the structure of the battery component 1 is further optimized. The battery component 1 in this embodiment includes a housing and multiple individual batteries 13 arranged in the same direction within the housing. Each individual battery 13 is a prismatic battery, and the number can be adjusted according to actual needs. The inner cavity of each individual battery 13 includes an electrolyte area and a gas area. After the multiple individual batteries 13 are arranged in the same direction within the housing, a clearance hole 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 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 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 corresponding to the clearance hole is fixedly sealed to the individual battery casing.

[0104] It should be noted that the polarity terminal of the single battery here can be the terminal post of the single battery. In order to prevent the terminal post of the single battery from not being able to extend smoothly out of the clearance hole as a polarity terminal, a terminal post adapter can be connected to the terminal post of the single battery, and the overall structure of the terminal post of the single battery and the terminal post adapter can be used as the polarity terminal of the single battery.

[0105] 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.

[0106] like Figure 7 As shown, 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 13. Through the electrolyte shared chamber, each individual battery cell 13 can be in a uniform electrolyte environment, ensuring the uniformity of the electrolyte within 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 is a liquid channel located between the bottom plate of the outer casing and the bottom of each individual battery cell 13.

[0107] 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 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 a gas channel is formed at the protrusion.

[0108] 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.

[0109] like Figure 9 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.

[0110] like Figure 9 As 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.

[0111] 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.

[0112] 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 2 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.

[0113] like Figure 8 and Figure 9 As shown, in order to draw thermal runaway fumes out of the casing of the battery component 1, the first end plate 111 of the end plate assembly 11 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 a timely manner, avoiding excessive pressure inside the casing of the battery component 1 and potential 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.

[0114] In this embodiment, the explosion vent 117 of the battery component 1 is provided with an explosion vent assembly 14 that communicates with the shared chamber. The explosion vent assembly 14 is connected to the flue gas branch pipe 33 on the first side beam 31. The explosion vent confluence channel 313 in the first side beam 31 can directionally discharge the thermal runaway flue gas generated by the thermal runaway battery component 1, and then perform centralized treatment to prevent heat diffusion and avoid the situation where thermal runaway of individual battery components 1 causes thermal runaway combustion or explosion of other battery components 1 or even the entire battery pack.

[0115] To ensure timely exhaust of gas from the shared chamber, the end plate assembly 11 may also be provided with a gas channel 116, which communicates with the shared chamber of the outer shell. This gas channel 116 can be implemented in the following ways:

[0116] First, the gas channel 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 to realize the discharge of gas. This method requires the first end plate 111 to have a corresponding thickness to set the groove.

[0117] Second, a second rib 123 is added to the inner side of the first end plate 111, and the gas channel 116 is formed by the second rib 123 provided on the inner side of the first end plate 111; at the same time, the second rib 123 can also further increase the overall strength of the first end plate 111 and improve the reliability of the battery component 1 during use.

[0118] Third, such as Figure 12 As shown, a second end plate 115 is added inside the first end plate 111, with a gap between the second end plate 115 and the first end plate 111. This gap serves as a gas channel 116, providing a larger flow area for the gas channel 116. Furthermore, adding the second end plate 115 inside the first end plate 111 enhances the overall strength of the end plate assembly 11. Simultaneously, in the y-direction, the second end plate 115 can clamp the individual battery cells 13 within the casing, improving the stability of each individual battery cell 13 within the casing cavity and preventing the battery cell 1 from bulging, which could lead to a decrease in the cycle performance of the battery component 1.

[0119] The aforementioned gas channels 116 are connected to the shared chamber and the explosion vent 117 of the battery components, respectively. The gas inside the outer casing of the battery component 1 is smoothly discharged through the gas channels 116 into the explosion vent assembly 14 of the explosion vent 117. Subsequently, the explosion vent assemblies 14 of each battery component are connected to the explosion venting manifold on the first side beam. This explosion venting manifold is connected to the explosion venting assemblies of all battery components in the battery pack. When a single cell in any battery component experiences thermal runaway, its thermal runaway fumes can be discharged in an orderly manner through the explosion venting manifold, reducing the risk of thermal runaway propagation and battery component explosion, and improving the safety performance of the battery pack.

Claims

1. A battery pack mounting rack, characterized by, The support frame includes two first side beams extending along the x-direction and two second side beams extending along the y-direction. At least one of the two first side beams is a hollow component, and the inner cavity of the hollow component serves as a venting confluence channel; at the same time, the hollow component has multiple flue gas branch pipes connected to the venting confluence channel, as well as a flue gas outlet for discharging thermal runaway flue gas from the venting confluence channel. The bottom of each first side beam has multiple strip-shaped protrusions arranged along the x-direction.

2. The battery pack mount of claim 1, wherein, The flue gas branch pipe is located at the top of the first side beam. At the same time, there are multiple connecting bolts on both first side beams, and each connecting bolt is welded to the top of the first side beam.

3. The battery pack mount of claim 1 or 2, wherein, The first side beam is formed by bending sheet metal parts, including a hollow beam body with a rectangular cross section and a support plate extending from the bottom of the hollow beam body to support the battery components. The bottom surface of the support plate is flush with the bottom surface of the hollow beam body. Part of each strip protrusion is fixed to the bottom of the hollow beam body, and the other part is fixed to the bottom of the support plate.

4. The battery pack mounting bracket according to claim 3, characterized in that, The first and second side beams of the support frame are fixedly connected by welding.

5. A battery pack, characterized in that, Includes multiple battery components, an insulating mounting unit, and a battery pack mounting frame as described in any one of claims 1 to 4; The battery component includes a housing and multiple individual batteries arranged in the housing along the y direction. An explosion venting assembly is installed on the explosion vent of the housing. Multiple battery components are arranged sequentially on the support frame along the x-direction, and the explosion relief components of each battery component are connected to the flue gas branch pipes on the first side beam in a corresponding manner. The insulating mounting unit includes insulating mounting seats installed at both ends of each battery component and an insulating pad located inside the second side beam. The insulating mounting seat includes a support plate that contacts the bottom of the battery component and a vertical plate that contacts the end of the battery component. The outer side of the vertical plate has a mounting plate that is fixedly connected to the first side beam of the support frame.

6. The battery pack of claim 5, wherein, The explosion venting components of each battery component are connected to the flue gas branch pipe via insulated flexible hoses and are secured with clamps.

7. The battery pack of claim 5, wherein, An insulating buffer pad is provided between the first side beam and the mounting plate of each insulating mounting base. The insulating buffer pad has a first clearance notch corresponding to the position of each flue gas branch pipe. The mounting plate has a second clearance notch corresponding to the position of each flue gas branch pipe.

8. The battery pack of claim 5, wherein, The outer shell 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 assembly includes a first end plate, the outer side of the first end plate has at least one first rib extending in the z direction, the first rib has a mounting groove, and the mounting groove passes through the first rib in the x direction; The inner side of the upright plate of the insulating mounting base has at least one first mounting groove extending in the z direction. The first mounting groove has a mounting protrusion. The first rib of the first end plate is located in the first mounting groove, and the mounting protrusion in the first mounting groove is embedded in the mounting groove of the first rib.

9. The battery pack of claim 8, wherein, Both sides of the insulating mounting base are provided with baffles, and the inner side of each baffle has a second mounting groove extending in the y direction. The two side plates of the cylinder are respectively provided with concave and convex positioning structures extending in the y direction. The concave and convex positioning structures of the cylinder are embedded in the second mounting grooves on the inner side of the baffles.

10. The battery pack of any one of claims 5-9, wherein, 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, and the shared chamber inside the outer casing is connected to the explosion relief assembly.

11. The battery pack of claim 10, wherein, 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