Power battery assembly and vehicle

Abstract

The application provides a power battery assembly and a vehicle, and relates to the technical field of vehicles.The power battery assembly comprises a vehicle frame assembly and a battery system.The vehicle frame assembly comprises a first vehicle frame, a frame-shaped frame and a second vehicle frame connected in sequence.The battery system comprises a box body and a battery cell arranged in the box body.The box body comprises a side beam arranged on the side of the battery cell.The side beam is connected with the frame-shaped frame, and the side beam is located at the Z-direction bottom of the frame-shaped frame.The frame-shaped frame can provide a mounting position for the side beam, so that the battery system is conveniently fixed to the bottom of the frame-shaped frame, thereby avoiding interference between the battery system and the vehicle frame.The side beam of the battery system is connected with the frame-shaped frame, so that the side beam and the frame-shaped frame form an integral whole, thereby improving the connection strength between the side beam and the frame-shaped frame, and further improving the support strength of the vehicle frame assembly on the vehicle.The arrangement of the battery system avoids interference with the main components to be carried in the vehicle, and improves the stability of the overall structure of the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a power battery assembly and a vehicle. Background Technology

[0002] In battery-powered vehicles, especially for battery-powered commercial vehicles, which are typically heavy, multiple frames are installed at the bottom of the vehicle along its length. However, the battery system usually needs to be installed at the bottom of the vehicle, which causes interference between the battery system and the frame. Summary of the Invention

[0003] In view of this, this application provides a power battery assembly that at least solves the problem of interference between the battery system configuration and the vehicle frame configuration. This application also provides a vehicle including the aforementioned power battery assembly.

[0004] To achieve the above objectives, this application provides the following technical solution: A power battery assembly, comprising: The frame assembly includes a first frame, a frame frame, and a second frame connected in sequence; A battery system includes a housing and battery cells disposed within the housing. The housing includes side beams disposed around the battery cells. The side beams are connected to a frame and are located at the bottom of the frame in the Z direction.

[0005] By setting up a frame, mounting positions for the side beams are provided, facilitating the fixing of the battery system to the bottom of the frame and preventing interference between the battery system and the vehicle frame. Furthermore, connecting the side beams of the battery system to the frame creates a unified structure, increasing the connection strength between the side beams and the frame, and consequently enhancing the frame assembly's support strength for the vehicle. Additionally, since the top Z-axis of the frame will house the load-bearing components, placing the side beams at the bottom Z-axis of the frame prevents the battery system from interfering with the load-bearing main components, thus improving the frame assembly's stability in supporting these components and ultimately enhancing the overall structural stability of the vehicle.

[0006] Optionally, the battery system includes a cover connected to the housing, the housing and the cover together defining a receiving cavity for receiving the battery cell, the frame having a receiving space inside, and both the battery cell and the cover extending into the receiving space.

[0007] By extending both the battery cell and the cover into the housing space, the space occupied by the battery system in the vehicle can be fully utilized, thereby improving the space utilization rate of the power battery pack. Since the battery cell is the main unit participating in the charging and discharging reaction of the battery system, the larger the space occupied by the battery cell, the greater the energy density of the battery system. This design is intended to improve the energy density of the battery system.

[0008] Optionally, a reinforcing beam connected to the frame is provided on the side of the frame away from the battery system.

[0009] By setting up the aforementioned reinforcing beams, the structural stability of the frame can be improved, thereby increasing the structural strength of the frame and thus enhancing the stability of the frame assembly in supporting the main components to be carried in the vehicle.

[0010] Optionally, in the Z-direction, the end of the reinforcing beam opposite to the battery system and the end of the frame opposite to the battery system are flush, and in the Z-direction, the size of the reinforcing beam is smaller than the size of the frame.

[0011] This design ensures that the reinforcing beams and frame provide more space for the battery cells within the battery system, thereby increasing the space occupied by the cells and ultimately maximizing the energy density of the battery system. Furthermore, this configuration allows the battery system to be constructed as a single, integrated battery pack, avoiding the need to divide the battery system into smaller units.

[0012] Optionally, the end of the cover facing away from the box body is connected to the reinforcing beam.

[0013] This can further improve the tightness of the connection between the battery system and the frame, and further improve the connection strength between the frame assembly and the battery system. This can improve both the structural strength of the frame assembly and the fixing effect on the battery system.

[0014] Optionally, the frame and the side beam are connected by bolts, and in the Z direction, the bolts penetrate at least a portion of the side beam.

[0015] By increasing the length of the bolts within the side beam, the tightness of the connection between the side beam and the frame can be further improved, thereby enhancing the structural stability of the connection between the side beam and the frame. This allows the side beam to further enhance the support strength of the frame for the components to be supported in the vehicle, and also improves the fixing effect of the frame on the side beam, thus improving the stability of the frame in fixing the battery system.

[0016] Optionally, multiple bolts are provided at equal intervals along the length of the side beam.

[0017] The presence of multiple bolts provides more connection points for the frame and side beams, thereby further enhancing the stability of the connection between them. Furthermore, the bolts on the same side beam are spaced evenly, ensuring balanced stress distribution across the frame and side beams when subjected to external forces, further improving the stability of the connection.

[0018] Optionally, a groove is formed on the side of the side beam away from the battery cell. The groove extends from the end of the side beam away from the frame to the end closer to the frame. A through hole for mounting the bolt is formed on the side wall of the groove facing the frame.

[0019] Bolts can be inserted into through holes through grooves or bolts inserted into through holes can pass through grooves, so that grooves can reserve space for bolt installation, or in other words, facilitate bolt installation and improve the convenience of bolt connection between side beams and frame frames.

[0020] Optionally, the end of the side beam facing the frame includes: The first end face is capable of abutting against the frame; The second end face is provided with a mounting hole, and the connector is installed in the mounting hole to install the cover on the second end face; In the Z-direction, the top surface of the connector is lower than the first end face, or the top surface of the connector is flush with the first end face.

[0021] This reduces interference between the side beams and the frame when connecting the side beams and the frame to secure the battery system and the frame, thus improving the ease of connection and the strength of the connection.

[0022] Optionally, a mounting groove for installing a seal is formed on the second end face, and the seal is compressed and accommodated in the mounting groove to achieve a connection seal between the cover and the side beam.

[0023] This design allows for easy sealing between the cover and the housing, improving the efficiency of sealing component installation.

[0024] Optionally, in the Z-direction, a high-pressure box is provided on the top of the cover, the high-pressure box is disposed in the gap between the frame and the reinforcing beam, and the top of the high-pressure box is lower than the top of the frame and the top of the reinforcing beam.

[0025] The high-voltage housing is positioned between the frame and the reinforcing beam to reduce interference between them, allowing for a more compact arrangement of the battery pack. Ensuring the top of the high-voltage housing is lower than both the top of the frame and the top of the reinforcing beam minimizes interference between the high-voltage housing and load-bearing components in the vehicle, and prevents damage to the high-voltage housing from load-bearing components mounted on the frame and reinforcing beam, thus protecting the high-voltage housing.

[0026] Optionally, both the first frame and the second frame are support beams arranged along the X direction. The frame includes longitudinal beams arranged along the X direction and transverse beams arranged along the Y direction. The transverse beams and the longitudinal beams are connected end to end to form the frame.

[0027] This configuration ensures that both the first frame and the frame frame along the X direction are connected to the crossbeams along the Y direction of the frame frame. This improves the stability of the connection between the first frame and the frame frame, as well as the stability of the connection between the second frame and the frame frame, thereby enhancing the overall structural strength of the frame assembly and improving the stability of the frame assembly in supporting the vehicle's load-bearing components.

[0028] A vehicle comprising a power battery pack as described in any of the preceding claims.

[0029] The power battery assembly provided in this application includes a frame assembly and a battery system. The frame assembly includes a first frame, a frame-shaped frame, and a second frame connected in sequence. The battery system includes a housing and battery cells disposed within the housing. The housing includes side beams disposed around the battery cells, and the side beams are connected to the frame-shaped frame. Here, by providing the frame-shaped frame, mounting positions are provided for the side beams, so as to conveniently fix the battery system to the bottom of the frame-shaped frame, thereby avoiding interference between the battery system and the frame.

[0030] Furthermore, the side beams of the battery system are connected to the frame here, so that the side beams and the frame form a whole, thereby improving the connection strength between the side beams and the frame, and thus improving the support strength of the frame assembly for the vehicle.

[0031] In addition, since the top of the frame in the Z direction will house the components to be supported in the vehicle, placing the side beam at the bottom of the frame in the Z direction can prevent the battery system from interfering with the main components to be supported in the vehicle, thereby improving the stability of the frame assembly in supporting the main components in the vehicle, and thus improving the overall stability of the vehicle structure. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the frame assembly and battery system provided in an embodiment of this application.

[0034] Figure 2 This is a structural diagram showing the connection method between the side beam and the frame.

[0035] Figure 3 This is a schematic diagram of the battery system.

[0036] Figure 4 This is a top view of the battery system and high-voltage enclosure.

[0037] Figure 5 This is a magnified view of the battery system after the connectors are installed.

[0038] Figure 6 A partial enlarged view of the battery system before the connectors are installed.

[0039] Figure 7 This is a structural schematic diagram of the side beams and frame from another perspective.

[0040] Figure 8 This is a structural diagram of the chassis assembly.

[0041] exist Figures 1-8 middle: 1-Frame assembly, 2-Battery system, 3-Bolts, 4-High voltage housing; 11-First frame, 12-Frame frame, 13-Second frame, 14-Reinforcing beam, 15-Angle support structure, 21-Box body, 22-Cover body; 121-Longitudinal beam, 122-Horizontal beam, 211-Side beam, 212-Groove, 213-Through hole; 2111-First end face, 2112-Second end face, 2113-Connector, 2114-Mounting groove, 2115-Mounting hole. Detailed Implementation

[0042] This application provides a power battery assembly that at least solves the problem of interference between the battery system configuration and the vehicle frame configuration. This application also provides a vehicle including the aforementioned power battery assembly.

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] like Figures 1 to 8 As shown, this application embodiment provides a power battery assembly, which includes a frame assembly 1 and a battery system 2. The frame assembly 1 is used to carry components to be carried in the vehicle and supports the components to be carried. The battery system 2 is the power source of the vehicle and provides power for the vehicle's driving and other operating conditions. The frame assembly 1 includes a first frame 11, a frame frame 12, and a second frame 13 connected in sequence. Here, the first frame 11, the frame frame 12, and the second frame 13 are generally along the X-direction of the vehicle (…). Figure 1 or Figure 7 The frame 12 is formed by connecting multiple beams end to end in the direction indicated by the arrow X (i.e., the length direction of the vehicle). The frame shape can be a polygonal frame, a circular frame, or an elliptical frame. In this embodiment, a rectangular frame is used as an example for explanation. Rectangular frames have better structural stability than frames of other shapes. The battery system 2 includes a housing 21 and battery cells (not shown in the figure) disposed within the housing 21. Battery cells typically include positive and negative electrode plates and a separator disposed between the positive and negative electrode plates. The battery cell is the main component in the battery system that participates in the charging and discharging reaction. The housing 21 forms a space to accommodate the battery cells, providing an installation position for the battery cells. The housing 21 includes side beams 211 disposed around the battery cells. Typically, multiple side beams 211 are provided, and multiple side beams 211 are connected end to end to jointly define the installation space of the battery cells. Side beams 211 are connected to frame 12. For example, the side beams 211 and frame 12 can be connected by one or more of the following methods: bolting, snap-fitting, welding, riveting, etc. This arrangement allows the frame 12 to provide an installation position for the side beams 211, that is, the frame 12 to provide an installation position for the battery system 2, thereby facilitating the installation and fixation of the battery system 2. Furthermore, the multiple side beams 211 are typically also frame structures. The side beams 211 connected to the frame 12 provide reinforcement to the frame 12, further improving the structural stability of the frame 12, thereby enhancing the support stability of the vehicle frame assembly 1 for the load-bearing components of the vehicle. Moreover, the side beams 211 are located in the Z-direction of the frame 12 (…). Figure 1 or Figure 7 (In the direction indicated by the middle arrow Z) at the bottom, this can prevent the battery system 2 from interfering with the main components to be supported in the vehicle, thereby improving the stability of the frame assembly 1 in supporting the main components in the vehicle, and thus improving the overall stability of the vehicle structure.

[0045] It should be noted that when the vehicle is on a horizontal plane, the Z direction is usually the height direction of the vehicle, the X direction is usually the length direction of the vehicle, and the Y direction is usually the width direction of the vehicle.

[0046] The aforementioned power battery assembly, by providing a frame 12, offers an installation position for the side beam 211, facilitating the fixing of the battery system 2 to the bottom of the frame 12 and preventing interference between the battery system 2 and the vehicle frame. Furthermore, the side beam 211 of the battery system 2 is connected to the frame 12, forming a unified structure that enhances the connection strength between the side beam 211 and the frame 12, thereby improving the support strength of the vehicle frame assembly 1 for the vehicle.

[0047] In some embodiments, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 8 The battery system 2 includes a cover 22 connected to the housing 21. The housing 21 and the cover 22 together define a cavity for accommodating the battery cells. The frame 12 has an internal accommodating space. Figure 1 (As shown in area A), both the battery cell and the cover 22 extend into the receiving space. That is, the housing 21 defines a first receiving cavity, and the cover 22 defines a second receiving cavity. The receiving cavity jointly defined by the two after the cover 22 is connected to the housing 21 is the sum of the first and second receiving cavities. Here, extending both the battery cell and the cover 22 into the receiving space fully utilizes the space occupied by the battery system 2 in the vehicle, improving the space utilization rate of the power battery assembly. Since the battery cell is the main unit participating in the charging and discharging reaction of the battery system 2, the larger the space occupied by the battery cell, the greater the energy density of the battery system 2. This arrangement aims to improve the energy density of the battery system 2.

[0048] In some embodiments, please refer to Figure 1 and Figure 8A reinforcing beam 14 connected to the frame 12 is provided on the side of the frame 12 facing away from the battery system 2. Typically, the frame 12 includes a frame structure formed by sequentially connecting crossbeams 122 and longitudinal beams 121. For example, one end of the reinforcing beam 14 can be connected to the crossbeam 122 and the other end to the longitudinal beam 121. Both ends of the reinforcing beam 14 can also be connected to two crossbeams 122 respectively, and both ends can be connected to two longitudinal beams 121 respectively. By providing the aforementioned reinforcing beam 14, the structural stability of the frame 12 can be improved, thereby increasing the structural strength of the frame 12 and thus improving the stability of the frame assembly 1 in supporting the main components to be carried in the vehicle. It should be noted that the arrangement and number of reinforcing beams 14 are not limited here; one or more reinforcing beams 14 can be provided, and the reinforcing beams 14 can be arranged along the X-direction, along the Y-direction, or along a direction between the X and Y directions.

[0049] In some embodiments, please refer to Figure 1 and Figure 8 In the Z-axis direction, the end of the reinforcing beam 14 facing away from the battery system 2 is flush with the end of the frame 12 facing away from the battery system 2, and in the Z-axis direction, the size of the reinforcing beam 14 is smaller than the size of the frame 12. That is, the thickness of the reinforcing beam 14 is less than the thickness of the frame 12; and ensuring that the end of the reinforcing beam 14 facing away from the frame 12 is flush with the end of the frame 12 ensures that the reinforcing beam 14 and the frame 12 provide more space for the battery cells within the battery system 2, thereby further increasing the space occupied by the battery cells and thus increasing the energy density of the battery system 2. Furthermore, this allows the battery system 2 to be constructed as a single battery pack, avoiding the need to divide the battery system 2.

[0050] In addition, the end of the reinforcing beam 14 facing away from the battery system 2 can be higher than the end of the frame 12 facing away from the battery system 2. Of course, the end of the reinforcing beam 14 facing away from the battery system 2 can also be lower than the end of the frame 12 facing away from the cell module. Such a setting can improve the energy density of the battery system 2 without affecting the installation of the components to be supported in the vehicle.

[0051] In some embodiments, please refer to Figure 1The end of the cover 22 facing away from the housing 21 is connected to the reinforcing beam 14. For example, the end of the cover 22 facing away from the housing 21 and the reinforcing beam 14 can be connected by at least one of the following methods: adhesive bonding, welding, threaded connection, or snap-fit. Since the frame 12 is connected to the side beam 211 of the battery system 2, and the reinforcing beam 14 is also connected to the frame 12, ensuring that the end of the cover 22 facing away from the housing 21 is connected to the reinforcing beam 14 further improves the tightness of the connection between the battery system 2 and the frame 12, and further enhances the connection strength between the frame assembly 1 and the battery system 2. This improves both the structural strength of the frame assembly 1 and the fixation effect on the battery system 2.

[0052] In some embodiments, please refer to Figure 2 The frame 12 and the side beam 211 are connected by bolts 3. The bolt connection is characterized by its simple structure, reliable connection, and structural stability. Using bolts 3 to connect the frame 12 and the side beam 211 improves the connection stability and structural strength. Furthermore, in the Z-direction, the bolt 3 penetrates at least a portion of the side beam 211; for example, the bolt 3 may penetrate a portion of the side beam 211 or the entire side beam 211. Increasing the length of the bolt 3 within the side beam 211 further enhances the tightness of the connection between the side beam 211 and the frame 12, thereby improving the structural stability of the connection. This allows the side beam 211 to further enhance the support strength of the frame 12 for the components to be carried in the vehicle, and also improves the fixing effect of the frame 12 on the side beam 211, thus improving the stability of the frame 12 in fixing the battery system 2.

[0053] In some embodiments, please refer to Figure 1 and Figure 2 Along the length of the side beam 211, multiple bolts 3 are evenly spaced. On one hand, having multiple bolts 3 provides more connection points for the frame 12 and the side beam 211, thereby further improving the connection stability between them. On the other hand, the evenly spaced bolts 3 on the same side beam 211 ensure balanced stress distribution across the frame 12 and side beam 211 when subjected to external forces, further enhancing the connection stability. It should be noted that the length direction of the side beam 211 can be either as indicated by arrow X or arrow Y.

[0054] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 and Figure 7A groove 212 is formed on the side of the side beam 211 away from the battery cell. The groove 212 extends from the end of the side beam 211 away from the frame 12 towards the end closer to the frame 12. A through hole 213 for mounting bolts 3 is formed on the side wall of the groove 212 facing the frame 12. That is, a groove 212 is formed on the side beam 211, and a through hole 213 is formed on the groove wall of the groove 212, penetrating a portion of the side beam 211. In this way, bolts 3 can be inserted into the through hole 213 through the groove 212, or bolts 3 inserted into the through hole 213 can pass through the groove 212. This allows the groove 212 to reserve space for the installation of bolts 3, or in other words, facilitates the installation of bolts 3, thereby improving the convenience of connecting the side beam 211 and the frame 12 with bolts 3.

[0055] In some embodiments, please refer to Figure 5 and Figure 6 The end of the side beam 211 facing the frame 12 includes a first end face 2111 and a second end face 2112. The first end face 2111 can abut against the frame 12. Specifically, one end of the through hole 213 is located on the side wall of the groove 212, and the other end of the through hole 213 is located on the first end face 2111. The bolt 3 passes through the side wall of the groove 212 and the first end face 2111 to achieve the connection with the frame 12. The second end face 2112 has a mounting hole 2115. The connector 2113 is installed in the mounting hole 2115 to install the cover 22 on the second end face 2112. The connector 2113 is installed in the mounting hole 2115 to achieve the connection between the cover 22 and the side beam 211. For example, the connector 2113 can be a bolt structure, a snap-fit ​​structure, etc. In the Z-direction, the top surface of the connector 2113 is lower than the first end face 2111, or the top surface of the connector 2113 is flush with the first end face 2111; that is, the top surface of the connector 2113 does not extend beyond the first end face 2111. In this way, when the side beam 211 and the frame 12 are connected together to fix the battery system 2 and the frame 12, the connector 2113 can avoid interfering with the installation between the side beam 211 and the frame 12, thereby improving the convenience of the connection between the side beam 211 and the frame 12 and improving the connection strength between the side beam 211 and the frame 12.

[0056] In some embodiments, please refer to Figure 5A mounting groove 2114 for installing a sealing element (not shown in the figure) is provided on the second end face 2112. The sealing element is compressed and accommodated in the mounting groove 2114 to achieve a sealing connection between the cover 22 and the side beam 211. Specifically, during the assembly of the battery system 2, before connecting the cover 22 and the housing 21, the sealing element is first installed in the mounting groove 2114. Then, the cover 22 is fastened onto the housing 21, and the connector 2113 is correspondingly installed into the mounting hole 2115. This achieves the connection between the cover 22 and the housing 21, while also applying a compressive force to the sealing element installed in the mounting groove 2114, so that the compressed sealing element achieves a sealing connection between the cover 22 and the housing 21. This configuration facilitates the sealing between the cover 22 and the housing 21, improving the installation efficiency of the sealing element.

[0057] For example, the seal can be a sealing strip, a sealing ring, or a sealing gasket, etc.

[0058] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 4 In the Z-direction, a high-voltage housing 214 is disposed on the top of the cover 22, within the gap between the frame 12 and the reinforcing beam 14. The high-voltage housing 214 is electrically connected to the battery system 2, and its interior integrates the power control domain for the entire vehicle and battery pack, enabling rapid control response. Positioning the high-voltage housing 214 between the frame 12 and the reinforcing beam 14 reduces interference between them, allowing for a more compact arrangement of the power battery assembly. Since the top of the frame 12 supports components to be carried in the vehicle, ensuring that the top of the high-voltage housing 214 is lower than both the top of the frame 12 and the top of the reinforcing beam 14 reduces interference between the high-voltage housing 214 and the components, and prevents damage to the high-voltage housing 214 from components mounted on the frame 12 and the reinforcing beam 14, thus protecting the high-voltage housing 214.

[0059] In some embodiments, please refer to Figure 8 The first frame 11 and the second frame 13 are both support beams arranged along the X-direction. The frame 12 includes a longitudinal beam 121 arranged along the X-direction and a transverse beam 122 arranged along the Y-direction. The transverse beam 122 and the longitudinal beam 121 are connected end to end to form the frame 12. This arrangement ensures that both the first frame 11 and the second frame 13, arranged along the X-direction, are connected to the transverse beam 122 of the frame 12, which improves the stability of the connection between the first frame 11 and the frame 12, and also improves the stability of the connection between the second frame 13 and the frame 12. This, in turn, improves the overall structural strength of the frame assembly 1, thereby enhancing the stability of the frame assembly 1 in supporting the components to be carried in the vehicle.

[0060] Further details based on the above embodiments can be found in the following examples. Figure 1 and Figure 8 An angled support structure 15 is provided between the crossbeams 122 of the first frame 11 and the frame 12. One connecting surface of the angled support structure 15 is connected to the first frame 11, and the other connecting surface is connected to the crossbeams 122 of the frame 12, thereby improving the connection strength between the first frame 11 and the crossbeams 122 of the frame 12. Correspondingly, an angled support structure 15 is provided between the second frame 13 and the crossbeams 122 of the frame 12. One connecting surface of the angled support structure 15 is connected to the second frame 13, and the other connecting surface is connected to the crossbeams 122 of the frame 12, thereby improving the connection strength between the second frame 13 and the crossbeams 122 of the frame 12. Alternatively, an angled support structure 15 can be provided between the crossbeams 122 and longitudinal beams 121 of the frame 12. One connecting surface of the angled support structure 15 is connected to the crossbeam 122, and the other connecting surface is connected to the longitudinal beam 121, thereby improving the connection strength between the crossbeams 122 and longitudinal beams 121 of the frame 12. Furthermore, an angled support structure 15 can also be provided between the crossbeams 122 or longitudinal beams 121 of the frame 12 and the reinforcing beam 14. One connecting surface of the angled support structure 15 is connected to the crossbeam 122 or longitudinal beam 121, and the other connecting surface is connected to the reinforcing beam 14, thereby improving the connection strength between the crossbeams 122 or longitudinal beams 121 and the reinforcing beam 14.

[0061] This application also provides a vehicle including the above-mentioned power battery assembly, wherein the battery system 2 is the power source of the vehicle to provide power for the vehicle's driving and other operating conditions; the frame assembly 1 in the power battery assembly and the side beam 211 in the battery system 2 can provide support for the components to be carried in the vehicle to ensure the structural stability of the vehicle.

[0062] It should be noted that, in this embodiment, the vehicle is typically a commercial vehicle. For example, a commercial vehicle can be a freight truck such as a mini-truck, light truck, medium / heavy truck, dump truck, pickup truck, etc.; a commercial vehicle can also be a passenger vehicle such as a bus, tourist bus, light passenger vehicle, school bus, etc.; a commercial vehicle can also be a special-purpose vehicle such as a harvester, tiller, concrete mixer truck, water sprinkler truck, crane, sweeper truck, garbage truck, refrigerated truck, fire truck, ambulance, etc.

[0063] It should also be noted that since the vehicle includes the aforementioned power battery components, the beneficial effects of the power battery components on the vehicle are described above and will not be repeated here.

[0064] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0065] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0066] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0067] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0068] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0069] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A power battery assembly, characterized in that, include: The frame assembly (1) includes a first frame (11), a frame frame (12) and a second frame (13) connected in sequence. The battery system (2) includes a housing (21) and a battery cell disposed in the housing (21). The housing (21) includes a side beam (211) disposed on the periphery of the battery cell. The side beam (211) is connected to the frame (12) and the side beam (211) is located at the bottom of the frame (12) in the Z direction.

2. The power battery assembly according to claim 1, characterized in that, The battery system (2) includes a cover (22) connected to the housing (21), the housing (21) and the cover (22) together defining a receiving cavity for accommodating the battery cell, the frame (12) having a receiving space inside, and the battery cell and the cover (22) both extending into the receiving space.

3. The power battery assembly according to claim 2, characterized in that, A reinforcing beam (14) is provided on the side of the frame (12) opposite to the battery system and is connected to the frame (12).

4. The power battery assembly according to claim 3, characterized in that, In the Z direction, the end of the reinforcing beam (14) facing away from the battery system (2) is flush with the end of the frame (12) facing away from the battery system (2), and in the Z direction, the size of the reinforcing beam (14) is smaller than the size of the frame (12).

5. The power battery assembly according to claim 4, characterized in that, The end of the cover (22) facing away from the box (21) is connected to the reinforcing beam (14).

6. The power battery assembly according to claim 1, characterized in that, The frame (12) and the side beam (211) are connected by bolts (3), and in the Z direction, the bolts (3) penetrate at least a portion of the side beam (211).

7. The power battery assembly according to claim 6, characterized in that, Along the length of the side beam (211), there are multiple bolts (3) arranged at equal intervals.

8. The power battery assembly according to claim 7, characterized in that, The side beam (211) has a groove (212) on the side away from the battery cell. The groove (212) extends from the end of the side beam (211) away from the frame (12) to the end close to the frame (12). The side wall of the groove (212) facing the frame (12) has a through hole (213) for mounting the bolt (3).

9. The power battery assembly according to claim 2, characterized in that, The end of the side beam (211) facing the frame (12) includes: The first end face (2111) can abut against the frame (12); The second end face (2112) has a mounting hole (2115), and the connector (2113) is installed in the mounting hole (2115) to install the cover (22) on the second end face (2112); In the Z direction, the top surface of the connector (2113) is lower than the first end face (2111), or the top surface of the connector (2113) is flush with the first end face (2111).

10. The power battery assembly according to claim 9, characterized in that, An installation groove (2114) for installing a seal is provided on the second end face (2112). The seal is compressed and accommodated in the installation groove (2114) to achieve a connection seal between the cover (22) and the side beam (211).

11. The power battery assembly according to claim 3, characterized in that, In the Z direction, a high-pressure box (4) is provided on the top of the cover (22). The high-pressure box (4) is located in the gap between the frame (12) and the reinforcing beam (14), and the top of the high-pressure box (4) is lower than the top of the frame (12) and the top of the reinforcing beam (14).

12. The power battery assembly according to claim 3, characterized in that, The first frame (11) and the second frame (13) are both support beams arranged along the X direction. The frame (12) includes a longitudinal beam (121) arranged along the X direction and a transverse beam (122) arranged along the Y direction. The transverse beam (122) and the longitudinal beam (121) are connected end to end to form the frame (12).

13. A vehicle, characterized in that, Includes the power battery assembly as described in any one of claims 1-12 above.

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