Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment. The battery pack comprises a battery module; the box body is provided with a containing cavity and used for containing the battery module, the box body comprises a frame piece and a connecting frame, the frame piece is arranged on the periphery of the battery module in a surrounding mode, and the connecting frame is located on the frame piece and supports at least part of the battery module; the liquid cooling plate is arranged on the box body so as to exchange heat with the battery module; and the mounting assembly comprises a mounting seat, and the mounting seat is mounted between the end part of the connecting frame and the side wall of the frame piece, so that the connecting frame is connected with the frame piece. The structure stability of the whole battery pack is improved, and the heat exchange effect is good.

Description

Technical Field

[0001] This utility model relates to a battery pack and electrical equipment, belonging to the field of new energy battery technology. Background Technology

[0002] In fields such as new energy power plants or microgrids, as the demand for power battery technology matures, the selection of power batteries for different vehicle models is becoming increasingly diversified due to factors such as vehicle purpose, market demand, and policies and regulations.

[0003] In the process of conceiving and realizing this utility model, the inventors discovered at least the following problems: the battery module is housed inside the box, and the support strength of the box for the battery module is relatively weak.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] This utility model provides a battery pack and electrical equipment, which improves the structural stability of the entire battery pack and has a good heat exchange effect.

[0006] This utility model provides a battery pack, comprising:

[0007] Battery module;

[0008] The housing has a receiving cavity for accommodating the battery module. The housing includes a frame and a connecting frame. The frame surrounds the outer periphery of the battery module, and the connecting frame is located on the frame and supports at least part of the battery module.

[0009] A liquid cooling plate is installed in the housing to exchange heat with the battery module;

[0010] The mounting assembly includes a mounting base, which is mounted between the end of the connecting frame and the side wall of the frame member to connect the connecting frame and the frame member.

[0011] The beneficial effects of this utility model are: by setting up the frame components, connecting brackets and mounting bases, the connection between the connecting brackets and the frame components is ensured, which improves the structural stability of the entire battery pack, enabling it to better withstand external impacts and vibrations, protect the battery modules, and simplify the assembly and disassembly process of the battery pack; in addition, the liquid cooling plate exchanges heat with the battery modules, which can effectively manage the temperature of the battery modules and help improve the performance and lifespan of the battery pack.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] In some alternative implementations, the material weight of the connecting frame is lighter than that of the frame member.

[0014] It's worth noting that using lighter materials to manufacture the connecting frame can effectively reduce the overall weight of the battery pack. This is especially important for applications requiring mobility or portability (such as electric vehicles or portable devices), helping to improve energy efficiency and range.

[0015] In some alternative implementations, at least one of the frame member and the connecting bracket is a profile member.

[0016] It should be noted that profile components are typically manufactured through extrusion or stretching processes, which are suitable for mass production, significantly improving manufacturing efficiency and shortening production cycles. Furthermore, the manufacturing processes for profile components are relatively mature and cost-effective, especially in large-scale production, effectively reducing manufacturing costs. They generally possess good structural strength and consistency, providing reliable mechanical properties and ensuring the stability and durability of the battery pack.

[0017] In some alternative embodiments, the mounting base has a first mounting surface and a second mounting surface, which are located on different sides of the mounting base, respectively.

[0018] The first mounting surface is attached to the side wall of the frame component, and the second mounting surface is attached to the end wall of the connecting bracket.

[0019] It should be noted that by setting the first and second mounting surfaces on different sides, the mounting base can provide a firm connection between the frame components and the connecting bracket, ensuring the overall stability and durability of the battery pack structure, better withstanding mechanical stress and vibration, effectively distributing and transferring load, and improving the structural strength of the battery pack.

[0020] In some alternative embodiments, the mounting base has a slot with the opening of the slot facing the end of the connector so that the end of the connector extends into the slot.

[0021] The mounting assembly also includes multiple fasteners. The first mounting surface is connected to the side wall of the frame member by fasteners, and the second mounting surface is connected to the end wall of the connecting bracket by fasteners.

[0022] It should be noted that the slot opening faces the end of the connector bracket, allowing the connector bracket to be easily aligned and inserted into the slot during installation. The slot design ensures that the end of the connector bracket is securely embedded in the mounting base, providing additional mechanical fixation. This embedded connection increases the strength of the connection and reduces the risk of loosening at the connection points.

[0023] In some alternative implementations, the connecting frame includes a first connecting bracket and a second connecting bracket;

[0024] A first connecting bracket is disposed on the frame member along a first direction, and a second connecting bracket is disposed on the frame member along a second direction, wherein there is an included angle between the first direction and the second direction.

[0025] It should be noted that by setting the first connecting bracket and the second connecting bracket in different directions, a support structure with an included angle is formed. The presence of the included angle gives the connecting bracket better anti-torsional performance when subjected to torsional force, which can effectively disperse and resist mechanical stress from multiple directions and improve the overall structural stability of the battery pack.

[0026] In some alternative embodiments, the mounting base includes a first mounting base and a second mounting base, the second mounting base being disposed between the end of the second connecting bracket and the side wall of the frame member, so that the second connecting bracket and the frame member are connected.

[0027] There are at least two first mounting seats, one of which is disposed between the end of the first connecting bracket and the side wall of the frame member, and the other of which is disposed between the end of the first connecting bracket and the side wall of the second connecting bracket.

[0028] It should be noted that by setting the second mounting base between the end of the second connecting bracket and the side wall of the frame member, a stable connection between the second connecting bracket and the frame member is achieved; setting the first mounting base between the end of the first connecting bracket and the side wall of the frame member, and setting another first mounting base between the end of the first connecting bracket and the side wall of the second connecting bracket, helps to optimize the force transmission path and enhance torsional and vibration resistance.

[0029] In some alternative embodiments, there are at least two second mounting bases, which are disposed at opposite ends of the second connecting bracket;

[0030] There are at least two first connecting brackets, and the at least two first connecting brackets are spaced apart along the second direction on the frame piece.

[0031] It should be noted that by providing at least two second mounting seats at opposite ends of the second connecting bracket, multi-point fixation between the second connecting bracket and the frame component is ensured. This multi-point connection improves the stability and durability of the structure, helps to disperse and resist forces from different directions, and can better withstand the effects of external forces.

[0032] In some alternative embodiments, the enclosure also includes a cover plate and a bottom guard plate, with the cover plate disposed on top of the frame members and the bottom guard plate disposed on the bottom of the frame members;

[0033] The liquid cooling plate is located between the bottom of the frame component and the bottom protective plate.

[0034] It should be noted that the cover and bottom protective plate provide additional protection for the battery module, preventing the battery from being affected by external environmental factors (such as dust, moisture, and physical impact), improving the overall structural integrity of the enclosure, and providing additional rigidity and strength. At the same time, this design also helps to seal the battery pack and maintain the stability of the internal environment.

[0035] In addition, this utility model also provides an electrical device, including the aforementioned battery pack.

[0036] The present invention provides a battery pack and an electrical device, the electrical device including a battery pack; the battery pack including a battery module; a housing having a receiving cavity for receiving the battery module, the housing including a frame and a connecting frame, the frame surrounding the outer periphery of the battery module, the connecting frame located on the frame and supporting at least part of the battery module; a liquid cooling plate disposed in the housing for heat exchange with the battery module; and a mounting assembly including a mounting base, the mounting base being installed between the end of the connecting frame and the side wall of the frame to connect the connecting frame and the frame.

[0037] By incorporating frame components, connecting brackets, and mounting bases, a robust connection between the connecting brackets and frame components is ensured, improving the overall structural stability of the battery pack. This allows it to better withstand external impacts and vibrations, protecting the battery modules and simplifying the assembly and disassembly process. Furthermore, the liquid cooling plate provides heat exchange for the battery modules, effectively managing their temperature and contributing to improved battery pack performance and lifespan. Attached Figure Description

[0038] The above and other objects, features, and advantages of embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present invention will be described by way of example and non-limitation, wherein:

[0039] Figure 1 This is a schematic diagram of the battery pack structure according to an embodiment of the present invention;

[0040] Figure 2 This is an exploded view of the battery pack according to an embodiment of the present invention;

[0041] Figure 3 This is a partial exploded view of the battery pack according to an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the assembly between the frame and the connecting frame of the battery pack according to an embodiment of the present utility model.

[0043] Figure 5 This is a partial cross-sectional view of the battery pack according to an embodiment of the present utility model;

[0044] Figure 6This is a schematic diagram of the bottom protective plate structure of the battery pack according to an embodiment of the present invention.

[0045] Figure label:

[0046] 100-battery pack;

[0047] 110 - Housing; 111 - Frame piece; 112 - Connecting bracket; 1121 - First connecting bracket; 1122 - Second connecting bracket; 113 - Cover plate; 114 - Bottom guard plate;

[0048] 120-Liquid Cooling Plate;

[0049] 130 - Mounting base; 131 - First mounting surface; 132 - Second mounting surface; 133 - First mounting base; 134 - Second mounting base;

[0050] 140 - Seal; 150 - Lifting lug; 160 - Reinforcing plate. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. In the absence of conflict, the following embodiments and features can be combined with each other.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] In the process of conceiving and realizing this utility model, the inventors discovered at least the following problems: the battery module is housed inside the box, and the support strength of the box for the battery module is relatively weak.

[0056] The battery pack proposed in this utility model, through the arrangement of the frame, connecting frame and mounting base, ensures a stable connection between the connecting frame and the frame, improves the structural stability of the entire battery pack, can better withstand external impacts and vibrations, protects the battery module, and simplifies the assembly and disassembly process of the battery pack; in addition, the liquid cooling plate exchanges heat with the battery module, which can effectively manage the temperature of the battery module and help improve the performance and life of the battery pack.

[0057] The battery pack provided by this utility model will be described in detail below with reference to specific embodiments.

[0058] Figure 1 This is a schematic diagram of the battery pack structure according to an embodiment of the present invention. Figure 2 This is an exploded view of the battery pack according to an embodiment of the present invention. Figure 3 This is a partial exploded view of the battery pack according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the assembly between the frame and the connecting frame of the battery pack according to an embodiment of the present invention.

[0059] refer to Figures 1 to 4As shown, this utility model embodiment proposes a battery pack 100, comprising:

[0060] Battery module;

[0061] The housing 110 has a receiving cavity for accommodating the battery module. The housing 110 includes a frame 111 and a connecting frame 112. The frame 111 surrounds the outer periphery of the battery module, and the connecting frame 112 is located on the frame 111 and supports at least part of the battery module.

[0062] A liquid cooling plate 120 is installed in the housing 110 to exchange heat with the battery module;

[0063] The mounting assembly includes a mounting base 130, which is mounted between the end of the connecting frame 112 and the side wall of the frame member 111 to connect the connecting frame 112 and the frame member 111.

[0064] It is understandable that the purpose of the cavity is to house the battery module. It is also easy to understand that the cavity is sealed to prevent side reactions from occurring within the battery cells, which could affect the cell performance.

[0065] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery module. Specifically, it can be adjusted according to the actual situation. This utility model embodiment does not impose too many limitations here.

[0066] It should be noted that by installing a liquid cooling plate 120 on the housing 110, and by having liquid cooling channels on the liquid cooling plate 120, the heat generated by the battery module can be effectively carried away by the coolant. Liquid cooling technology is generally more efficient than air cooling, and can reduce battery temperature faster, prevent overheating, and improve battery efficiency and lifespan.

[0067] In this embodiment of the invention, the battery module can be configured as a rectangular structure. The battery module can be located inside the housing 110.

[0068] Understandably, housing 110 can be used to support the battery module.

[0069] The dimensions of the aforementioned housing 110 can be set according to actual needs, and this embodiment of the utility model does not impose any restrictions here.

[0070] In addition, it should be noted that the shape of the box 110 is not limited in this embodiment. For example, the box 110 can be a regular shape such as a cuboid or a cylinder. Of course, the box 110 can also be other irregular shapes.

[0071] In one possible implementation, the housing 110 can be a rectangular structure, and the size of the housing 110 can be greater than or equal to the size of the battery module, so that the housing 110 can support the battery module.

[0072] It should be noted that the heat exchange function between the liquid cooling plate 120 and the battery module can effectively manage the temperature of the battery module, which helps to improve the performance and lifespan of the battery.

[0073] It should be noted that the liquid cooling plate 120 enables the battery module to effectively exchange heat, keeping the battery operating within a suitable temperature range. This not only improves battery performance and efficiency but also extends battery life.

[0074] The battery pack 100 can more flexibly adapt to battery modules of different specifications and capacities through the combined design of the frame component 111 and the connecting bracket 112. This modular design facilitates production and maintenance, and reduces manufacturing and maintenance costs.

[0075] The design of the housing 110 makes full use of the internal space, ensuring that the battery modules can be compactly arranged in the housing cavity, thereby improving the overall energy density of the battery pack 100.

[0076] Through the above-mentioned configuration, namely the frame component 111, the connecting bracket 112, and the mounting base 130, a stable connection between the connecting bracket 112 and the frame component 111 is ensured, which improves the structural stability of the entire battery pack 100, enabling it to better withstand external impacts and vibrations, protect the battery module, and simplify the assembly and disassembly process of the battery pack 100. In addition, the liquid cooling plate 120 exchanges heat with the battery module, which can effectively manage the temperature of the battery module and help improve the performance and lifespan of the battery pack 100.

[0077] In some alternative implementations, the material weight of the connecting frame 112 is lighter than that of the frame member 111.

[0078] It should be noted that by using lighter materials to manufacture the connecting frame 112, the overall weight of the battery pack 100 can be effectively reduced. This is especially important for applications that require mobility or portability (such as electric vehicles or portable devices), as it helps improve energy efficiency and range.

[0079] Furthermore, lighter materials generally mean lower material costs, especially in mass production where this cost advantage becomes more pronounced. Weight reduction can also lower transportation and installation costs. In applications such as electric vehicles, reducing the battery pack weight by 100% directly translates to improved vehicle energy efficiency, reduced energy consumption, and increased driving range.

[0080] Another possible approach is to use lightweight materials with good thermal conductivity, which can further optimize the thermal management of the battery module. Combined with the liquid cooling plate 120, this can help to dissipate heat more efficiently.

[0081] In some embodiments, the frame member 111 may be a roll-formed steel profile.

[0082] In some embodiments, the frame component 111 may include multiple frames of different lengths, which are welded together by carbon dioxide gas shielded welding to ensure the strength and flatness of the overall frame component 111.

[0083] In some embodiments, the connecting frame 112 may be an aluminum extrusion profile.

[0084] In some embodiments, the connecting bracket 112 is fixed to the frame member 111 of the housing 110 by riveting.

[0085] It should be noted that the embodiments of this utility model use roll-formed steel profiles and aluminum extrusion profiles, which ensures that the structural mode is not lower than 45HZ while also ensuring a lightweight design with an energy density greater than 125wh / kg.

[0086] In some alternative embodiments, at least one of the frame member 111 and the connecting bracket 112 is a profile member.

[0087] It should be noted that: the frame component 111 can be a profile component, and the connecting bracket 112 can also be a profile component.

[0088] Profile components are typically manufactured using extrusion or stretching processes, which are suitable for mass production, significantly improving manufacturing efficiency and shortening production cycles. Furthermore, the manufacturing processes for profile components are relatively mature and cost-effective, especially in large-scale production, effectively reducing manufacturing costs. They generally possess good structural strength and consistency, providing reliable mechanical properties and ensuring the stability and durability of the battery pack.

[0089] Figure 5 This is a partial cross-sectional view of the battery pack according to an embodiment of the present invention, as shown below. Figures 1 to 5 As shown, in some alternative embodiments, the battery pack 100 also includes a structural sealant 170, and the liquid cooling plate 120 is connected, fixed and sealed to the bottom of the frame member 111 by the structural sealant 170 and the large flange rivet nut.

[0090] In addition, the structural sealant 170 not only serves to connect and fix the aluminum stamped liquid cooling plate 120 to the roll-formed steel profile, but also ensures the sealing requirements inside the box and meets the sealing performance requirements of the entire package.

[0091] like Figures 1 to 5As shown, in some optional embodiments, the mounting base 130 has a first mounting surface 131 and a second mounting surface 132, the first mounting surface 131 and the second mounting surface 132 being located on different sides of the mounting base 130, respectively.

[0092] The first mounting surface 131 is attached to the side wall of the frame member 111, and the second mounting surface 132 is attached to the end wall of the connecting bracket 112.

[0093] It should be noted that by providing a first mounting surface 131 and a second mounting surface 132 on different sides, the mounting base 130 can provide a firm connection between the frame member 111 and the connecting bracket 112, ensuring the overall stability and durability of the battery pack 100 structure, better withstanding mechanical stress and vibration, effectively distributing and transferring load, and improving the structural strength of the battery pack 100.

[0094] The double-sided design of the first mounting surface 131 and the second mounting surface 132 of the mounting base 130 makes the installation process more intuitive and convenient. The installer only needs to attach the first mounting surface 131 and the second mounting surface 132 of the mounting base 130 to the corresponding frame piece 111 and connecting bracket 112 respectively to complete the installation, reducing the installation time and complexity.

[0095] In some embodiments, the mounting base 130 may be designed with a certain degree of elasticity or cushioning material to absorb and mitigate the vibration and impact experienced by the battery pack 100 during use, thereby further protecting the battery module.

[0096] To meet installation strength requirements, in some embodiments, the area of ​​the first mounting surface 131 is larger than the area of ​​the second mounting surface 132.

[0097] like Figures 1 to 5 As shown, in some alternative embodiments, the mounting base 130 has a slot with the opening of the slot facing the end of the connecting bracket 112 so that the end of the connecting bracket 112 extends into the slot.

[0098] The mounting assembly also includes multiple fasteners. The first mounting surface 131 is connected to the side wall of the frame member 111 by fasteners, and the second mounting surface 132 is connected to the end wall of the connecting bracket 112 by fasteners.

[0099] It should be noted that the slot opening faces the end of the connector 112, allowing the connector 112 to be easily aligned and inserted into the slot during installation. The slot design ensures that the end of the connector 112 can be securely embedded within the mounting base 130, providing additional mechanical fixation. This embedded connection increases the strength of the connection and reduces the risk of loosening at the connection points.

[0100] With the dual fixation of the slot and fasteners, the mounting base 130 can more effectively resist vibration and impact, protecting the battery module from the influence of the external environment.

[0101] The use of multiple fasteners to connect the first mounting surface 131 and the second mounting surface 132 of the mounting base 130 provides a flexible installation method. The use of fasteners makes the disassembly and maintenance of the mounting base 130 more convenient. When replacement or repair is required, the component can be easily disassembled simply by loosening the fasteners, reducing maintenance time and costs.

[0102] In some embodiments, the fasteners can be adjusted as needed to suit different installation conditions and requirements.

[0103] In some embodiments, considering cost, the fastener can be a bolt.

[0104] The fastener can be a threaded fastener or other fasteners, as long as it can ensure that the first mounting surface 131 is mounted on the frame member 111. There are no major restrictions on the specific fasteners.

[0105] Of course, it should be noted that, in this embodiment of the utility model, considering the cost of the fastener, the fastener can be a threaded fastener. Correspondingly, a first connecting hole is opened on the first mounting surface 131. The first connecting hole can be a threaded hole. The fastener can pass through the first connecting hole and can be tightened or loosened to adjust the fixed and disassembled state.

[0106] In addition, a second connecting hole is provided on the frame member 111. The second connecting hole can also be a threaded hole. Fasteners can pass through the first connecting hole and can be adjusted for fixing and disassembly by tightening or loosening.

[0107] Specifically, the fastener passes through the first connecting hole and the second connecting hole in sequence and is tightened, thereby fixing the first mounting surface 131 to the frame member 111. Of course, when it is necessary to remove the first mounting surface 131, simply loosen the fastener and then remove the fastener from the second connecting hole and the first connecting hole in sequence.

[0108] Accordingly, the connection of the second mounting surface 132 to the end wall of the connecting bracket 112 via fasteners can be referred to the above, and will not be elaborated further here.

[0109] like Figures 1 to 5 As shown, in some optional embodiments, the connecting bracket 112 includes a first connecting bracket 1121 and a second connecting bracket 1122;

[0110] A first connecting bracket 1121 is disposed on the frame member 111 along a first direction, and a second connecting bracket 1122 is disposed on the frame member 111 along a second direction, wherein there is an included angle between the first direction and the second direction.

[0111] It should be noted that by setting the first connecting bracket 1121 and the second connecting bracket 1122 in different directions, a support structure with an included angle is formed. The presence of the included angle makes the connecting bracket 112 have better anti-torsional performance when subjected to torsional force, which can effectively disperse and resist mechanical stress from multiple directions and improve the overall structural stability of the battery pack 100.

[0112] Furthermore, by arranging connecting brackets in different directions, the internal space of the housing 110 can be utilized more flexibly. This design helps optimize the layout of the battery modules and improve the energy density of the battery pack 100.

[0113] The orientation and angle of the first connecting bracket 1121 and the second connecting bracket 1122 can be adjusted according to specific application requirements to adapt to the design of battery modules and housings 110 of different specifications and shapes.

[0114] like Figure 3 As shown, the first direction is X and the second direction is Y, that is, the first connecting bracket 1121 and the second connecting bracket 1122 are set perpendicularly.

[0115] like Figures 1 to 5 As shown, in some optional embodiments, the mounting base 130 includes a first mounting base 133 and a second mounting base 134. The second mounting base 134 is disposed between the end of the second connecting bracket 1122 and the side wall of the frame member 111, so that the second connecting bracket 1122 and the frame member 111 are connected.

[0116] There are at least two first mounting seats 133, one of which is disposed between the end of the first connecting bracket 1121 and the side wall of the frame member 111, and the other of which is disposed between the end of the first connecting bracket 1121 and the side wall of the second connecting bracket 1122.

[0117] It should be noted that by setting the second mounting base 134 between the end of the second connecting bracket 1122 and the side wall of the frame member 111, a stable connection between the second connecting bracket 1122 and the frame member 111 is achieved. Setting the first mounting base 133 between the end of the first connecting bracket 1121 and the side wall of the frame member 111, and setting another first mounting base 133 between the end of the first connecting bracket 1121 and the side wall of the second connecting bracket 1122, helps to optimize the force transmission path and enhance torsional and vibration resistance.

[0118] The use of multiple mounting brackets 130 ensures multi-point fixation between the connecting bracket 112 and the frame member 111, dispersing stress and improving the overall structural stability and durability of the battery pack 100. Through multi-point connection and support, the mounting brackets 130 can more effectively absorb and disperse external impact forces, protecting the battery module from damage.

[0119] like Figures 1 to 5 As shown, in some optional embodiments, there are at least two second mounting bases 134, and at least two second mounting bases 134 are disposed at opposite ends of the second connecting bracket 1122;

[0120] There are at least two first connecting brackets 1121, and at least two first connecting brackets 1121 are spaced apart along the second direction on the frame member 111.

[0121] It should be noted that by providing at least two second mounting seats 134 at opposite ends of the second connecting bracket 1122, multi-point fixation between the second connecting bracket 1122 and the frame member 111 is ensured. This multi-point connection improves the stability and durability of the structure, helps to disperse and resist forces from different directions, and can better withstand the effects of external forces.

[0122] Furthermore, it should be noted that by arranging at least two first connecting brackets 1121 at intervals along the second direction, the force distribution and transmission path can be optimized, thereby further improving the mechanical performance of the battery pack 100.

[0123] Figure 6 This is a schematic diagram of the bottom protective plate structure of the battery pack according to an embodiment of the present invention. Figures 1 to 6 As shown, in some optional embodiments, the housing 110 further includes a cover plate 113 and a bottom protective plate 114, with the cover plate 113 disposed on the top of the frame member 111 and the bottom protective plate 114 disposed on the bottom of the frame member 111.

[0124] The liquid cooling plate 120 is located between the bottom of the frame piece 111 and the bottom protective plate 114.

[0125] It should be noted that the cover plate 113 and the bottom protective plate 114 provide additional protection for the battery module, preventing the external environment (such as dust, moisture, and physical impact) from affecting the battery, improving the overall structural integrity of the housing 110, and providing additional rigidity and strength. At the same time, this design also helps to seal the battery pack 100 and maintain the stability of the internal environment.

[0126] Furthermore, the design of the cover plate 113 and the bottom cover plate 114 makes the inspection, maintenance, and replacement of the battery module and the liquid cooling plate 120 more convenient. By simply removing the cover plate 113 or the bottom cover plate 114, internal components can be quickly accessed, reducing maintenance time and costs.

[0127] Accordingly, the presence of the bottom protective plate 114 provides additional protection for the liquid cooling plate 120, preventing it from being damaged during installation and use. At the same time, the effective heat dissipation of the liquid cooling plate 120 also helps prevent battery overheating and improves overall safety.

[0128] In some embodiments, the materials and structure of the cover plate 113 and the bottom guard plate 114 can be adjusted according to specific application requirements to adapt to different environmental conditions and performance requirements.

[0129] like Figures 1 to 6 As shown, in some embodiments, the battery pack 100 further includes a seal 140 disposed between the bottom cover 114 and the frame member 111.

[0130] It should be noted that the seal 140 prevents dust, moisture, and other contaminants from entering the interior of the housing 110, protecting critical components such as the battery module from external environmental influences. Effective sealing reduces the risk of leakage and contamination, thereby lowering the frequency and cost of maintenance and repair, and extending the system's lifespan.

[0131] In some embodiments, the seal 140 may be a sealing ring.

[0132] In some embodiments, the seal 140 is foamed silicone, which is adhered to the sealing area formed after the liquid cooling plates 120 are spliced.

[0133] In some alternative implementations, the liquid cooling plate 120 is an integrally stamped cold plate.

[0134] In some embodiments, the liquid cooling plate 120 is an aluminum stamped liquid cooling plate 120, which is directly connected and fixed to the frame 111 of the housing 110 to form an integrated liquid-cooled battery pack 100. The aluminum stamped liquid cooling plate 120 has the advantages of lightweight structure and low cost. At the same time, the flow channel structure of the aluminum stamped liquid cooling plate 120 also provides a better performance foundation for the thermal management system.

[0135] It should be noted that the integrated stamping process can form the complex structure of the liquid cooling plate 120 in a single step, reducing the time and procedures in the traditional multi-step manufacturing process, thereby improving production efficiency. It can also optimize the flow channel layout and surface contact of the liquid cooling plate 120, thereby improving heat conduction and heat dissipation efficiency. This helps to manage heat more effectively and keep the battery module operating within its optimal temperature range.

[0136] Specifically, the metal sheet is placed in a stamping press, and pressure is applied through a die to shape it into the desired complex form. This step can be completed in a short time, making it suitable for mass production.

[0137] In some embodiments, the liquid cooling plate 120 includes an upper plate and a lower plate. The upper plate and the lower plate are connected and fixed by a brazing process. The liquid cooling channels are placed within a closed cavity formed by the upper plate and the lower plate. This achieves a tight connection between the cooling channels and the plate, improving the heat transfer efficiency of the liquid cooling plate 120 in a compact space.

[0138] In some embodiments, the bottom protective plate 114 is screwed onto the large flange rivet nut riveted to the frame member 111. The bottom of the bottom protective plate 114 is sprayed with PVC armor to protect the bottom of the battery. The bottom protective plate 114 plays a crucial role in protecting the flow channels of the bottom liquid cooling plate 120 and the bottom of the battery cell. It is necessary not only to ensure the structural strength of the bottom protective plate 114, but also to leave a sufficient safety gap between the bottom protective plate 114 and the liquid cooling plate 120 after installation.

[0139] In some embodiments, the cover plate 113 is molded using composite material RTM. This further achieves structural lightweighting while meeting energy density requirements.

[0140] In some embodiments, the outer periphery of the frame member 111 is provided with a plurality of lifting lugs 150 for easy transport and lifting.

[0141] In some embodiments, the frame member 111 is provided with electrical component brackets on one or more sides to facilitate external and internal electrical connections.

[0142] In other embodiments, a reinforcing plate 160 is added to the inner side of the frame member 111 to improve the overall strength of the frame member 111.

[0143] The battery pack provided in this embodiment of the utility model includes a battery module; a housing having a receiving cavity for accommodating the battery module, the housing including a frame and a connecting frame, the frame surrounding the outer periphery of the battery module, the connecting frame located on the frame and supporting at least a portion of the battery module; a liquid cooling plate disposed in the housing for heat exchange with the battery module; and a mounting assembly including a mounting base, the mounting base being installed between the end of the connecting frame and the side wall of the frame to connect the connecting frame and the frame.

[0144] By incorporating frame components, connecting brackets, and mounting bases, a robust connection between the connecting brackets and frame components is ensured, improving the overall structural stability of the battery pack. This allows it to better withstand external impacts and vibrations, protecting the battery modules and simplifying the assembly and disassembly process. Furthermore, the liquid cooling plate provides heat exchange for the battery modules, effectively managing their temperature and contributing to improved battery pack performance and lifespan.

[0145] In addition, this utility model embodiment also provides an electrical device, including the battery pack 100 described above.

[0146] It should be noted that the specific structure of the battery pack 100 will not be discussed in detail here; please refer to the above.

[0147] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0148] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery pack (100), characterized in that, include: Battery module; The housing (110) has a receiving cavity for accommodating the battery module. The housing (110) includes a frame (111) and a connecting frame (112). The frame (111) surrounds the outer periphery of the battery module, and the connecting frame (112) is located on the frame (111) and supports at least part of the battery module. A liquid cooling plate (120) is disposed in the housing (110) to exchange heat with the battery module; The mounting assembly includes a mounting base (130) mounted between an end of the connecting frame (112) and a side wall of the frame member (111) to connect the connecting frame (112) and the frame member (111).

2. The battery pack (100) according to claim 1, characterized in that, The material weight of the connecting frame (112) is lighter than that of the frame member (111).

3. The battery pack (100) according to claim 2, characterized in that, At least one of the frame member (111) and the connecting frame (112) is a profile member.

4. The battery pack (100) according to any one of claims 1-3, characterized in that, The mounting base (130) has a first mounting surface (131) and a second mounting surface (132), the first mounting surface (131) and the second mounting surface (132) being located on different sides of the mounting base (130); The first mounting surface (131) is attached to the side wall of the frame member (111), and the second mounting surface (132) is attached to the end wall of the connecting frame (112).

5. The battery pack (100) according to claim 4, characterized in that, The mounting base (130) has a slot, the opening of which faces the end of the connecting frame (112) so that the end of the connecting frame (112) extends into the slot; The mounting assembly also includes a plurality of fasteners, wherein the first mounting surface (131) is connected to the side wall of the frame member (111) by the fasteners, and the second mounting surface (132) is connected to the end wall of the connecting frame (112) by the fasteners.

6. The battery pack (100) according to any one of claims 1-3, characterized in that, The connecting frame (112) includes a first connecting bracket (1121) and a second connecting bracket (1122); The first connecting bracket (1121) is disposed on the frame member (111) along a first direction, and the second connecting bracket (1122) is disposed on the frame member (111) along a second direction, wherein there is an angle between the first direction and the second direction.

7. The battery pack (100) according to claim 6, characterized in that, The mounting base (130) includes a first mounting base (133) and a second mounting base (134). The second mounting base (134) is disposed between the end of the second connecting bracket (1122) and the side wall of the frame member (111) so that the second connecting bracket (1122) and the frame member (111) are connected. There are at least two first mounting seats (133), one of which is disposed between the end of the first connecting bracket (1121) and the side wall of the frame member (111), and the other of which is disposed between the end of the first connecting bracket (1121) and the side wall of the second connecting bracket (1122).

8. The battery pack (100) according to claim 7, characterized in that, There are at least two second mounting bases (134), and at least two second mounting bases (134) are disposed at opposite ends of the second connecting bracket (1122); There are at least two first connecting brackets (1121), and at least two first connecting brackets (1121) are spaced apart along the second direction on the frame member (111).

9. The battery pack (100) according to any one of claims 1-3, characterized in that, The housing (110) also includes a cover plate (113) and a bottom guard plate (114). The cover plate (113) is disposed on the top of the frame member (111), and the bottom guard plate (114) is disposed on the bottom of the frame member (111). The liquid cooling plate (120) is located between the bottom of the frame member (111) and the bottom protective plate (114).

10. An electrical appliance, characterized in that, Includes the battery pack (100) as described in any one of claims 1 to 9.

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