Battery pack mounting structure and vehicle

Abstract

The utility model discloses a battery pack mounting structure and a vehicle, which belong to the field of automobiles, the battery pack mounting structure is matched and connected with a battery pack, and the battery pack mounting structure comprises an assembly part and a fastening structure. Wherein the assembly part comprises a guide structure; the guide structure comprises a mounting groove and a sliding block; the mounting groove and the sliding block are respectively arranged on the assembly part and the power battery pack; the sliding block is used for being inserted and slidably connected to the mounting groove; the power battery pack is mounted on the assembly part; the fastening structure is used for fixing the relative positions of the assembly part and the power battery pack, so that the horizontal assembly design of the power battery pack and the assembly part is realized.

Description

A battery pack mounting structure and vehicle Technical Field

[0001] This application relates to the automotive field, and more particularly to a battery pack mounting structure and vehicle. Background Technology

[0002] With the rapid development of the new energy industry, electric vehicles have attracted much attention, and the battery pack is the core component of new energy vehicles, serving as their power source. OEMs are also placing increasingly higher performance requirements on battery packs. Generally, the battery pack is placed under the vehicle chassis and assembled with the vehicle from bottom to top using a series of bolts.

[0003] In existing technologies, vehicle manufacturers typically assemble power battery packs by lifting them with a lifting trolley. This requires precise positioning of the battery pack to match the bolts during assembly, leaving the bottom of the battery pack exposed after assembly.

[0004] This one-piece, bottom-up assembly structure is extremely inconvenient to assemble. It places extremely high demands on the precision of operators, tooling, and component positioning during processing, resulting in low production efficiency and increased costs. Furthermore, after the battery pack is assembled, this assembly method can easily cause the bottom of the vehicle's power battery to scrape when the vehicle is traveling on special road conditions, thereby affecting the vehicle's power output and safety. Summary of the Invention

[0005] This utility model solves, to at least a certain extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide a battery pack installation structure and vehicle, which aims to change the traditional bottom-up assembly direction of the power battery pack by a new structural design of the assembly components, and instead push the power battery pack horizontally into the assembly components to complete the assembly. At the same time, the power battery pack is positioned in the X-axis, Y-axis and Z-axis directions to ensure the stability of the power battery pack installation position, thereby solving the problems of high positioning accuracy requirements and low production efficiency.

[0007] To achieve the above objectives, this utility model provides a battery pack mounting structure, which is connected to a power battery pack, comprising:

[0008] Assembly components, including guide structures;

[0009] The guide structure includes a mounting groove and a slider. The mounting groove is disposed on the assembly component, and the slider is disposed on the power battery pack. The slider is used to insert into and slide on the mounting groove so that the power battery pack is installed on the assembly component. Alternatively, the mounting groove is disposed on the power battery pack, and the slider is disposed on the assembly component.

[0010] A fastening structure for securing the relative positions of the assembly components and the power battery pack.

[0011] In existing technologies, battery packs are typically placed under the vehicle chassis and assembled with the vehicle from bottom to top using bolts. The installation process usually involves workers using a lifting trolley to lift and assemble the battery pack. This requires precise positioning of the battery pack relative to the chassis, leading to inconvenience and low production efficiency. This application addresses this issue by incorporating a guide structure within the assembly components. Through the interlocking of a slider and mounting slot, the battery pack can be pushed into the assembly components for installation. Once the battery pack is in place, a fastening structure secures its relative position to the assembly components, thus completing the installation. Therefore, compared with existing technologies, workers no longer need to operate the lifting trolley to move the power battery pack, changing the traditional bottom-up installation method. The sliding contact between the slider and the mounting slot allows workers to simply push the power battery pack into the assembly component during assembly, saving assembly time and improving production efficiency. Furthermore, the cooperation between the slider and the mounting slot ensures that the power battery pack is fixed in position on the Y and Z axes, improving the stability of the power battery pack position.

[0012] In some embodiments of this application, multiple sliders are provided and located on opposite sides of the power battery pack, with two sliders located on the same horizontal plane; multiple mounting slots are correspondingly provided and located on opposite inner sidewalls of the assembly component, so that the power battery pack can be horizontally moved into the assembly component.

[0013] In the technical solution, the two sliders are located on the same horizontal plane, and the two mounting slots are correspondingly set on the same horizontal plane, thereby enabling the workers to move the power battery pack horizontally. This allows the workers to align the sliders with the openings of the mounting slots at the start of assembly, further improving production efficiency.

[0014] In some embodiments of this application, the guiding structure further includes a guide groove disposed at the end of the mounting groove and communicating with the mounting groove, wherein the width of the guide groove gradually increases from the direction away from the mounting groove.

[0015] In the technical solution, when workers move the power battery pack into the assembly component, they do not need to precisely align the slider with the mounting slot. They only need to move the slider to the opening end of the guide slot, which reduces the precision requirements for workers and further improves production efficiency.

[0016] In some embodiments of this application, the assembly component includes a protective structure;

[0017] When the slider is located in the mounting groove, the protective structure is located on the side of the power battery pack closest to the ground.

[0018] In existing technologies, the bottom of the assembled battery pack is exposed, making it susceptible to damage when the vehicle travels on rough terrain, such as gravel or hilly areas. This damage can affect the vehicle's power output and safety. The protective structure in this application, located on the side of the battery pack closest to the ground, protects the bottom of the battery pack, thereby increasing vehicle safety in challenging road conditions.

[0019] In some embodiments of this application, the assembly component further includes a limiting block located at the end of the protective structure away from the guide groove;

[0020] When the slider is fully embedded in the mounting slot, one end of the power battery pack abuts against the limiting block.

[0021] In the technical solution, when the worker moves the power battery pack into the assembly component, the worker stops moving the power battery pack when the end of the power battery pack abuts against the limiting block. At this time, the power battery pack is completely embedded in the assembly component. The setting of the limiting block enables the assembly component to position the power battery pack in the X-axis direction, preventing the power battery pack from moving out of the other end of the assembly component during the pushing process, reducing the risk of the power battery pack falling and breaking, and further reducing the core focus of the worker's assembly operation, thereby improving the worker's work efficiency.

[0022] In some embodiments of this application, the assembly component further includes a reinforcing member located at the end of the protective structure away from the guide groove;

[0023] When the slider is fully embedded in the mounting groove, the side of the reinforcing member closest to the guide groove abuts against the side of the limiting block furthest from the guide groove.

[0024] In the technical solution, when the worker moves the power battery pack into the assembly component, when the end of the power battery pack abuts against the limiting block, the reinforcement part near the limiting block abuts against the limiting block. If the worker continues to move at this time, when the limiting block is impacted by external force, the reinforcement part supports the limiting block and enhances the stability of the limiting block position.

[0025] In some embodiments of this application, the fastening structure includes: a first connector, which is a threaded connector, and the first connector passes through the limiting block and is threadedly connected to the power battery pack.

[0026] In the technical solution, after the workers move the power battery pack into the assembly component, they use the first connector to thread the limiting block to the power battery pack, thereby fixing the power battery pack and the assembly component at the rear end and further ensuring the assembly stability of the power battery pack.

[0027] In some embodiments of this application, the fastening structure further includes a second connector, which is a threaded connector that penetrates the protective structure and is threadedly connected to the power battery pack.

[0028] In the technical solution, by setting a second connector between the protective structure and the power battery pack, the robustness of the power battery pack installation in the assembly components is further improved.

[0029] In some embodiments of this application, the power battery pack has a connecting plate on the side near the ground;

[0030] When one end of the power battery pack abuts against the limiting block, the side of the connecting plate near the limiting block abuts against the side wall of the protective structure, and the second connecting member passes through both the connecting plate and the protective structure.

[0031] In the technical solution, by setting a connecting plate, when the worker moves the power battery pack to its end and abuts against the limiting block, the power battery pack is completely embedded in the mounting cavity. The worker then inserts the second connecting piece through both the connecting plate and the protective structure, thereby enhancing the connection between the power battery pack and the assembly components.

[0032] In addition, this application also provides a vehicle, which includes a body and the bottom of the body is a chassis;

[0033] A battery pack mounting structure is provided on the chassis.

[0034] The technical solution improves the installation efficiency between the power battery pack and the vehicle chassis by using a new battery pack mounting structure.

[0035] In some embodiments of this application, the power battery pack is located between the protective structure and the chassis.

[0036] In the technical solution, by placing the power battery pack between the protective structure and the chassis, the protection of the power battery pack is improved, further ensuring the safety of the vehicle when driving on special road sections.

[0037] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0039] Figure 1 is a schematic diagram of the overall structure of the battery pack mounting structure according to an embodiment of this application;

[0040] Figure 2 is a rear view of the overall structure of the battery pack mounting structure according to an embodiment of this application;

[0041] Figure 3 is an exploded structural diagram of the battery pack mounting structure according to an embodiment of this application;

[0042] Figure 4 is a schematic diagram of the overall structure of the power battery pack according to an embodiment of this application;

[0043] Figure 5 is a schematic diagram of the overall structure of the assembly components according to an embodiment of this application;

[0044] Figure 6 is an enlarged structural diagram of point A in Figure 5 according to an embodiment of this application;

[0045] Figure 7 is an enlarged structural diagram of section B in Figure 2 according to an embodiment of this application.

[0046] In the above figures: 100, guide structure; 101, mounting groove; 102, guide groove; 200, mounting bracket; 201, first mounting plate; 202, second mounting plate; 300, protective structure; 301, first protective plate; 302, second protective plate; 303, vent; 400, limiting block; 500, reinforcing component; 501, abutment plate; 502, bending plate; 600, first reinforcing plate; 700, second reinforcing plate; 800, power battery pack; 810, upper shell; 820, lower shell; 830, mounting component; 840, slider; 841, first flange; 842, second flange; 850, connecting plate; 851, first abutment plate; 852, second abutment plate; 900, fastening structure; 901, first connector; 902, second connector; 110, connecting leg. Detailed Implementation

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "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.

[0048] 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, an electrical connection, or a connection that allows communication between them; 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.

[0049] 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.

[0050] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. 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.

[0051] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0052] The battery pack is the core component of an electric vehicle and its power source.

[0053] Please refer to all the accompanying drawings. In this application, the battery pack mounting structure is connected to the power battery pack 800 to achieve the connection between the power battery pack and the vehicle. The battery pack mounting structure includes an assembly component, and the two are connected and fixed by a fastening structure 900. The assembly component includes a guide structure 100, which includes a mounting groove 101 and a slider 840. The mounting groove 101 is disposed on the assembly component, and the slider 840 is disposed on the power battery pack 800. Through the sliding engagement between the slider 840 and the mounting groove 101, the power battery pack 800 can be horizontally pushed into the assembly component under the action of external force, thereby realizing the horizontal assembly design of the power battery pack 800 and the assembly component.

[0054] This eliminates the need for precise positioning of the power battery pack 800 during assembly of the power battery pack 800 with the vehicle body. It avoids the problems of high positioning accuracy and long assembly time caused by the traditional assembly mode when the power battery pack 800 is lifted and assembled by a lifting trolley, which leads to low assembly efficiency. At the same time, it simplifies the assembly process, reduces the requirements for the operator's skill level, and thus improves production efficiency.

[0055] In some embodiments, the slider 840 is disposed on the outer side wall of the power battery pack 800, and the mounting groove 101 is disposed inside the assembly component. In this form, the power battery pack 800 is moved horizontally into the assembly component through the insertion and sliding engagement between the slider 840 and the mounting groove 101, thereby realizing the horizontal assembly design between the power battery pack 800 and the assembly component.

[0056] In another embodiment, the mounting groove 101 is disposed on the outer wall of the power battery pack 800, and the slider 840 is disposed inside the assembly component. In this form, the power battery pack 800 can be moved horizontally into the assembly component through the insertion and sliding cooperation between the mounting groove 101 and the slider 840, thereby enabling the operator to complete the assembly between the power battery pack 800 and the assembly component through horizontal assembly design.

[0057] In some embodiments, multiple sliders 840 are provided, and multiple mounting slots 101 are provided accordingly, adapted to the number of sliders 840 and their relative positions on the assembly component, so as to realize the corresponding sliding of sliders 840 into mounting slots 101, so as to realize the horizontal movement of power battery pack 800 into the assembly component under the action of external force.

[0058] Preferably, two sliders 840 are provided, and the bottom surfaces of the two sliders 840 are at the same height in the plane perpendicular to the base plate of the power battery pack 800; two mounting slots 101 are provided accordingly, and the axes of the two mounting slots 101 are located on the same horizontal plane, so as to realize that the power battery pack 800 is horizontally moved into the assembly component under the action of external force, thereby completing the horizontal assembly design of the power battery pack 800 and the assembly component.

[0059] In another embodiment, two sliders 840 are provided, and the bottom surfaces of the two sliders 840 are at different heights in the plane perpendicular to the base plate of the power battery pack 800. Two mounting slots 101 are provided at corresponding positions in the assembly component, that is, the sidewalls of the two mounting slots 101 near the ground and the sidewalls of the two mounting slots 101 away from the ground are not on the same plane. When the operator pushes the power battery pack 800 to move it into the assembly component, the positions of the two sliders 840 correspond to the positions of the two mounting slots 101 respectively, so as to realize the insertion and engagement between the sliders 840 and the mounting slots 101, thereby completing the horizontal assembly design of the power battery pack 800 and the assembly component.

[0060] In one embodiment, referring to Figures 3 and 4, the power battery pack 800 includes an upper housing 810, a lower housing 820, and a mounting member 830. The mounting member 830 is disposed between the upper housing 810 and the lower housing 820 to connect the upper housing 810 and the lower housing 820. The upper housing 810 has a first flange 841 on the side facing the lower housing 820, and the first flange 841 surrounds the outer periphery of the outer wall of the upper housing 810. The lower housing 820 has a second flange 842 on the side facing the upper housing 810, and the second flange 842 surrounds the outer periphery of the outer wall of the lower housing 820. The side of the first flange 841 away from the upper housing 810 and the side of the second flange 842 away from the lower housing 820 are flush, that is, when the first flange 841 and the second flange 842 abut, the outer peripheral walls of the first flange 841 and the second flange 842 are aligned and overlapped in all directions, so as to facilitate the installation of the power battery pack 800 into the assembly component.

[0061] Multiple mounting components 830 are spaced apart around the first flange 841 and the second flange 842. During assembly, the mounting components 830 are simultaneously inserted through the first flange 841 and the second flange 842 to connect and fix the upper housing 810 and the lower housing 820. The mounting components 830 can be made of carbon steel bolts, stainless steel bolts, POM (Polyoxymethylene Bolt) bolts, etc. In this embodiment, carbon steel bolts are preferred. The number of bolts can be 6, 8, 10, 12, etc., to ensure a firm connection between the upper housing 810 and the lower housing 820.

[0062] In some embodiments, the assembly component is located below the subframe. In this embodiment, the assembly component material can be any material that meets the strength requirements, such as aluminum plate, steel plate, or non-metallic sheet. To achieve a high-performance and lightweight design for the assembly component, the material thickness can be in the range of 0.5mm-5.0mm. The forming process of the assembly component and the power battery pack 800 can be one or more of the following: extrusion welding, die casting welding, sheet metal bending welding, and sheet metal stamping welding. In this embodiment, 5mm die casting and 2mm extruded aluminum are preferably welded together, and nuts are welded at the fastening bolt positions to ensure the strength of critical areas.

[0063] In some embodiments, referring to Figures 3 and 5, the first flange 841 and the second flange 842 together form the slider 840, in which case the mounting groove 101 is disposed in the assembly component. The assembly component includes a mounting bracket 200 and a protective structure 300. The mounting bracket 200 includes a first mounting plate 201 and a second mounting plate 202, and the protective structure 300 includes a first protective plate 301.

[0064] The first protective plate 301 is fixedly connected between the first mounting plate 201 and the second mounting plate 202. The plane of the first protective plate 301 is perpendicular to the plane of the first mounting plate 201 and the second mounting plate 202. The side of the first protective plate 301 facing the ground is on the same horizontal plane as the side of the first mounting plate 201 and the second mounting plate 202 facing the ground. The first mounting plate 201, the second mounting plate 202 and the first protective plate 301 together form a mounting cavity for embedding and mounting the power battery pack 800. There are two mounting grooves 101 arranged opposite each other, which are located on the two inner sidewalls of the first mounting plate 201 and the second mounting plate 202 respectively. The two mounting grooves 101 are at the same height in the direction perpendicular to the first protective plate 301, so that the power battery pack 800 can slide horizontally into the mounting cavity under the push of external force.

[0065] In this embodiment of the application, referring to Figure 3, the length direction of the mounting groove 101 is defined as the X-axis, the axis that is in the same horizontal plane as the X-axis and extends perpendicularly to the X-axis is defined as the Y-axis, the intersection of the X-axis and the Y-axis is defined as the origin, and the axis that is perpendicular to the plane containing the X-axis and the Y-axis and intersects with the origin is defined as the Z-axis.

[0066] During installation, the staff aligns the two sliders 840 of the power battery pack 800 with the two mounting slots 101 respectively, and pushes the power battery pack 800 so that the sliders 840 move horizontally along the length of the mounting slots 101 to achieve a fast and safe assembly process. At this time, the position of the power battery pack 800 on the Y-axis and Z-axis is strictly restricted to avoid interference between the power battery pack 800 and other structures of the assembly components during the movement. In addition, through multiple mechanisms such as guiding, limiting, and locking, the stability of the power battery pack 800 under complex working conditions is ensured, while further improving assembly efficiency and reducing the possibility of operational errors to avoid damage to the power battery pack 800 or the assembly components.

[0067] Referring to Figures 3, 5, and 6, in order to further reduce the accuracy requirements for the corresponding embedding between the slider 840 and the mounting groove 101 when the operator pushes the power battery pack 800 horizontally into the assembly component, the guide structure 100 also includes a guide groove 102. There are two guide grooves 102 arranged opposite each other, which are respectively connected to the ends of the two mounting grooves 101.

[0068] Specifically, the guide groove 102 is perpendicular to the plane of the first protective plate 301, and the distance between its upper and lower groove walls is set as the width of the guide groove 102. The width of the guide groove 102 gradually increases from the direction away from the mounting groove 101, that is, the width of the opening end of the guide groove 102 that communicates with the outside is greater than the width of the end that communicates with the mounting groove 101. This allows the two sliders 840 to be aligned with the opening ends of the guide groove 102 when the worker pushes the power battery pack 800 into the mounting cavity. Since the distance between the upper and lower ends of the sliders 840 is less than the distance between the opening ends of the guide groove 102, the time required for the worker to move the power battery pack 800 to align the sliders 840 with the mounting groove 101 is reduced, further improving the installation efficiency between the power battery pack 800 and the assembly components.

[0069] In some embodiments, in order to further limit the position of the power battery pack 800 in the mounting cavity and reduce the risk of the power battery pack 800 falling out of the mounting cavity and causing damage when it moves horizontally, a limit block 400 is provided in the assembly component. When the power battery pack 800 moves to the point where its end abuts against the limit block 400, the power battery pack 800 completes the assembly with the assembly component and stops moving.

[0070] In another embodiment, to prevent the power battery pack 800 from being removed from the assembly components, which would require workers to reposition the power battery pack 800 and reduce work efficiency, a sealing plate is provided at the end of the mounting groove 101 away from the guide groove 102. When the slider 840 on the power battery pack 800 moves to abut against the sealing plate, the power battery pack 800 completes its assembly with the assembly components and stops moving.

[0071] In one embodiment, referring to Figures 2 and 7, the limiting block 400 is fixedly connected to the side of the first protective plate 301 away from the guide groove 102; the fastening structure 900 includes a first connector 901 disposed at the limiting block 400, wherein the first connector 901 is a threaded connector that passes through the limiting block 400 and connects to the end of the power battery pack 800. When the end of the power battery pack 800 abuts against the side wall of the limiting block 400, the power battery pack 800 is completely embedded in the assembly component.

[0072] The limiting block 400 can be set as a rectangle, circle, ellipse, etc., and a rectangle is preferred in this embodiment. The limiting block 400 can be a solid body or a bent sheet metal. In this embodiment, the limiting block 400 is set as a bent sheet metal. Multiple limiting blocks 400 are arranged at intervals along the length direction of the first protective plate 301. In this embodiment, the number of limiting blocks 400 is preferably 3.

[0073] Referring to Figure 7, each limiting block 400 has a threaded hole for the installation of the first connector 901. The end of the power battery pack 800 is correspondingly provided with three threaded holes for the installation of the first connector 901. The threaded holes on the power battery pack 800 correspond one-to-one with the threaded holes on the limiting block 400. When the operator pushes the power battery pack 800 so that the end of the power battery pack 800 abuts against the side wall of the limiting block 400, that is, when the power battery pack 800 reaches the assembly position, the operator operates the first connector 901 to thread the power battery pack 800 to the assembly component, thereby limiting the position of the power battery pack 800 on the X-axis and further increasing the stability of the power battery pack 800 during assembly.

[0074] In some embodiments, referring to Figure 7, to further enhance the stability of the connection between the limiting block 400 and the first protective plate 301, a reinforcing member 500 is also provided on the side of the first protective plate 301 away from the mounting groove 101. The side of the limiting block 400 away from the mounting groove 101 and the side of the first protective plate 301 away from the mounting groove 101 are located on the same plane.

[0075] The reinforcement component 500 includes an abutment plate 501 fixedly connected to the side wall of the first protective plate 301 and a bent plate 502 disposed on the side of the abutment plate 501 away from the ground. The abutment plate 501 and the bent plate 502 are integrally formed. The side of the bent plate 502 near the limiting block 400 abuts against the limiting block 400. The first connector 901 passes through both the bent plate 502 and the limiting block 400 to achieve the supporting function of the bent plate 502 on the limiting block 400. This ensures that when the operator pushes the power battery pack 800 with excessive force, the position of the limiting block 400 can remain stable when subjected to external force impact, thereby effectively playing a limiting role.

[0076] In some embodiments, referring to Figures 3 and 5, the protective structure 300 further includes a second protective plate 302, which is fixedly connected between the first mounting plate 201 and the second mounting plate 202. The second protective plate 302 and the first protective plate 301 are located on the same horizontal plane, and the second protective plate 302 is located on the side of the first protective plate 301 near the mounting groove 101, so as to protect the bottom surface of the power battery pack 800 near the guide groove 102.

[0077] In some embodiments, the battery generates heat during charging and discharging. If the heat cannot be dissipated in time, it may cause the battery temperature to become too high, leading to thermal runaway. At the same time, the internal resistance of the battery increases in a high-temperature environment, resulting in a decrease in charging and discharging efficiency, which affects the vehicle's power performance and driving range. High temperatures also accelerate the degradation of the battery's positive and negative electrode materials, leading to battery capacity decay and shortening the battery's lifespan. Therefore, heat dissipation of the battery pack is an issue that cannot be ignored, which is one of the reasons why the bottom of the assembled battery pack is exposed to the outside in the prior art.

[0078] In this application, the middle portion of the first protective plate 301 near the second protective plate 302 is recessed away from the second protective plate 302, and the middle portion of the second protective plate 302 near the first protective plate 301 is also recessed away from the first protective plate 301. The first and second protective plates 301 together form a vent 303 for heat dissipation of the power battery pack 800. This allows the bottom of the power battery pack 800 to dissipate heat through the vent 303 during charging and discharging, thereby extending the service life of the power battery pack 800. Furthermore, when operating in summer or high-temperature regions, the power battery pack 800 can dissipate heat through the vent 303, reducing battery temperature and improving battery efficiency. The shape of the vent 303 can be circular, square, triangular, rhomboid, etc. In this embodiment, the vent 303 is rhomboid.

[0079] In another embodiment, in order to further improve the heat dissipation efficiency of the power battery pack 800 at the first protective plate 301, and increase the contact area between the bottom of the power battery pack 800 on the side of the first protective plate 301 away from the ground and the external air, the vent holes penetrate through the thickness direction of the first protective plate 301, and multiple vent holes are provided and distributed on the first protective plate 301, so as to achieve heat dissipation at the edge of the overlapping part of the power battery pack 800 and the first protective plate 301.

[0080] In another embodiment, in order to further improve the heat dissipation efficiency of the power battery pack 800 at the second protective plate 302, the contact area between the bottom of the power battery pack 800 on the side of the second protective plate 302 away from the ground and the external air is increased. The vent holes penetrate through the thickness direction of the second protective plate 302, and multiple vent holes are provided and distributed on the second protective plate 302 to achieve heat dissipation at the edge of the overlapping part of the power battery pack 800 and the second protective plate 302.

[0081] In some embodiments, referring to Figures 3, 4 and 5, in order to further increase the connection strength and prevent the power battery pack 800 from moving out of the mounting cavity, the fastening structure 900 also includes a second connector 902. The second connector 902 is a threaded connector. The second protective plate 302 has a threaded mounting hole on the side away from the first protective plate 301 for the second connector 902 to connect. The lower housing 820 is fixedly connected to a connecting plate 850 on the side near the ground for the second connector 902 to pass through and connect.

[0082] The connecting plate 850 includes a first abutting plate 851 and a second abutting plate 852. The first abutting plate 851 is fixedly connected to the side of the lower housing 820 near the ground; the second abutting plate 852 is fixedly connected to the side of the first abutting plate 851 away from the lower housing 820, the plane of the second abutting plate 852 is perpendicular to the plane of the first abutting plate 851, and the second abutting plate 852 and the first abutting plate 851 are integrally formed.

[0083] When the worker moves the power battery pack 800 horizontally until its end abuts against the limiting block 400, the power battery pack 800 is completely embedded in the mounting cavity. The side of the second abutting plate 852 near the second protective plate 302 abuts against the side of the second protective plate 302 away from the first protective plate 301. The worker inserts the second connecting piece 902 into both the second abutting plate 852 and the threaded mounting hole, thereby fixing the end of the power battery pack 800 away from the limiting block 400 to the assembly component.

[0084] In some embodiments, multiple connecting plates 850 and threaded connecting holes are provided. In this embodiment, the preferred number is three. The three connecting plates 850 are spaced apart along the length of the second protective plate 302 and correspond one-to-one with the threaded connecting holes provided on the side wall of the second protective plate 302, so as to meet the strength requirements of the connection parts of the power battery pack 800 and the assembly components.

[0085] In some embodiments, referring to Figure 5, in order to further increase the stability of the mounting bracket 200, a plurality of first reinforcing plates 600 are fixedly connected to the two outer side walls of the first mounting plate 201 and the second mounting plate 202.

[0086] In some embodiments, the first mounting plate 201 and the second mounting plate 202 are provided with a plurality of second reinforcing plates 700 at intervals on their two inner sidewalls to increase the overall robustness of the assembly components, thereby effectively protecting the power battery pack 800 installed therein and reducing the risk of the assembly components being squeezed by external force when the structure is deformed, which could damage the power battery pack 800 and endanger the personal and property safety of the vehicle owner.

[0087] In some embodiments, in order to ensure stable connection between components, facilitate production and installation, avoid interference, and meet dimensional tolerance requirements, the first reinforcing plate 600 and the second reinforcing plate 700 may have certain structures such as bending, flanging, chamfering, and rounding on the assembled parts.

[0088] In some embodiments, referring to Figure 5, in order to facilitate the connection of the assembly components to the vehicle body during the production process, the assembly components also include fixing members. There are two fixing members arranged opposite each other, located on the side of the first mounting plate 201 away from the ground and the side of the second mounting plate 202 away from the ground, respectively.

[0089] In some embodiments, referring to Figure 5, connecting feet 110 are provided on the opposite outer side walls of the first mounting plate 201 and the second mounting plate 202. The connecting feet 110 enhance the connection stability, safety, and assembly accuracy between the assembled components and the vehicle body during production assembly. This design optimizes space utilization, improves assembly efficiency, and facilitates future functional expansion and technological upgrades. In this embodiment, taking the location of the connecting feet 110 on the first mounting plate 201 as an example, the connecting feet 110 are located on the ground-facing side of the first mounting plate 201, and this ground-facing side is on the same plane as the ground-facing side of the first mounting plate 201.

[0090] Compared with the prior art, the battery pack installation structure in this application changes the assembly method between the power battery pack 800 and the assembly components from the original bottom-up lifting and installation by a lifting trolley to horizontal movement and pushing into the installation cavity. The position of the power battery pack 800 in the Y-axis and Z-axis directions can be limited only by the insertion and sliding cooperation between the installation groove 101 and the slider 840. This reduces the positional accuracy requirements of the power battery pack 800 during installation, simplifies the installation steps, and thus improves production efficiency.

[0091] By setting a limiting block 400, when the worker moves the power battery pack 800 into the assembly component, the worker stops moving when the end of the power battery pack 800 abuts against the limiting block 400. This prevents the power battery pack 800 from falling out of the assembly component and being damaged during movement. In other words, the position of the power battery pack 800 on the X-axis is limited. Through the installation and cooperation between the power battery pack 800 and the assembly component, the power battery pack 800 is positioned in the X, Y, and Z axes, improving product consistency. After the power battery pack 800 is moved into the installation cavity, the two ends of the power battery pack 800 are connected to the limiting block 400 and the second protective plate 302 respectively by the fastening structure 900. Multiple limiting blocks 400 and connecting plates 850 are arranged in an array at intervals to meet the strength requirements of the connection between the power battery pack 800 and the assembly component, making the connection between the power battery pack 800 and the assembly component more secure.

[0092] In addition, this application also provides a vehicle, which includes a body, a chassis at the bottom of the body, and the aforementioned battery pack mounting structure is provided on the chassis.

[0093] In some embodiments, the mounting components are located on the side of the chassis closer to the ground; the power battery pack 800 is located between the protective structure 300 and the chassis. On the one hand, the power battery pack 800 is connected and fixed to the chassis through the mounting components; on the other hand, the power battery pack 800 is located between the protective structure 300 and the chassis, so that when the vehicle travels on special road sections, the protective structure 300 protects the power battery pack 800 and the chassis, thereby preventing damage to the bottom of the power battery pack 800 and the chassis from debris such as flying stones during driving.

[0094] In one embodiment, the mounting component is part of the vehicle chassis. That is, a mounting slot 101 is provided on the chassis. This design improves the integrity of the vehicle body, eliminates the need for a separate structural mounting component, saves costs, and improves structural strength.

[0095] In another embodiment, the assembly component is installed separately under the vehicle chassis. This allows for individual replacement of the assembly component if it is damaged, saving on maintenance costs.

[0096] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A battery pack mounting structure, which is fitted and connected to a power battery pack (800), characterized in that, include: An assembly component includes a guide structure (100); wherein the guide structure (100) includes a mounting groove (101) and a slider (840), the mounting groove (101) being disposed on the assembly component and the slider (840) being disposed on the power battery pack (800); or, the mounting groove (101) being disposed on the power battery pack (800) and the slider (840) being disposed on the assembly component; the slider (840) is used to insert into and slide on the mounting groove (101) so that the power battery pack (800) is installed on the assembly component; and a fastening structure (900) is used to fix the relative position of the assembly component and the power battery pack (800).

2. The battery pack mounting structure according to claim 1, characterized in that, Multiple sliders (840) are provided and located on opposite sides of the power battery pack (800); multiple mounting slots (101) are provided and located on opposite inner sidewalls of the assembly component, so that the power battery pack (800) can be horizontally moved into the assembly component.

3. The battery pack mounting structure according to claim 1, characterized in that, The guide structure (100) further includes a guide groove (102), which is located at the end of the mounting groove (101) and communicates with the mounting groove (101). The width of the guide groove (102) gradually increases from the direction away from the mounting groove (101).

4. The battery pack mounting structure according to claim 3, characterized in that, The assembly component includes a protective structure (300); wherein, when the slider (840) is located in the mounting groove (101), the protective structure (300) is located on the side of the power battery pack (800) closer to the ground.

5. The battery pack mounting structure according to claim 4, characterized in that, The assembly component also includes a limiting block (400) located at one end of the protective structure (300) away from the guide groove (102); wherein, when the slider (840) is fully embedded in the mounting groove (101), one end of the power battery pack (800) abuts against the limiting block (400).

6. The battery pack mounting structure according to claim 5, characterized in that, The assembly component also includes a reinforcing member (500) located at one end of the protective structure (300) away from the guide groove (102); wherein, when the slider (840) is fully embedded in the mounting groove (101), the side of the reinforcing member (500) near the guide groove (102) abuts against the side of the limiting block (400) away from the guide groove (102).

7. The battery pack mounting structure according to claim 5, characterized in that, The fastening structure (900) includes: a first connector (901), which is a threaded connector, and the first connector (901) passes through the limiting block (400) and is threadedly connected to the power battery pack (800).

8. The battery pack mounting structure according to claim 7, characterized in that, The fastening structure (900) further includes a second connector (902), which is a threaded connector that penetrates the protective structure (300) and is threadedly connected to the power battery pack (800).

9. The battery pack mounting structure according to claim 8, characterized in that, The power battery pack (800) has a connecting plate (850) on the side near the ground; wherein, when one end of the power battery pack (800) abuts against the limiting block (400), the side of the connecting plate (850) near the limiting block (400) abuts against the side wall of the protective structure (300), and the second connecting member (902) passes through both the connecting plate (850) and the protective structure (300).

10. A vehicle, characterized in that: The vehicle includes a body, the bottom of which is a chassis; the chassis is provided with a battery pack mounting structure as described in any one of claims 1 to 9.

11. The vehicle according to claim 10, characterized in that, The power battery pack (800) is located between the protective structure (300) and the chassis.

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