Battery module for a vehicle and vehicle

Abstract

The application provides a battery module for a vehicle and the vehicle. The battery module for the vehicle comprises a battery box, the battery box comprising at least a first accommodating cavity, a second accommodating cavity and a third accommodating cavity, the second accommodating cavity and the third accommodating cavity extending upward from the top of the first accommodating cavity respectively, and at least one of the second accommodating cavity and the third accommodating cavity extending upward in a direction away from the other; and battery modules, the sizes and / or shapes of at least two of the first accommodating cavity, the second accommodating cavity and the third accommodating cavity being different at least partially for accommodating battery modules of different sizes and / or types and / or shapes; wherein the battery box comprises a plurality of sub-housings, the plurality of sub-housings being spliced and sealedly connected to enclose the first accommodating cavity, the second accommodating cavity and the third accommodating cavity. The application solves the problem of poor universality of the electric vehicle in the prior art, which cannot adapt to battery modules of different models.

Description

[0001] This application is a divisional application of the invention patent filed on January 14, 2025, with application number 202510055808.8 and invention title "Battery Module for Vehicle and Vehicle". Technical Field

[0002] This invention relates to the field of vehicle technology, and more specifically, to a battery module for a vehicle and a vehicle. Background Technology

[0003] Electric vehicles are widely used in various aspects of daily life and production due to their lightweight, compact size, ease of storage and use. Taking two-wheeled electric vehicles as an example, their battery modules are usually placed in a specific storage space pre-installed in the vehicle.

[0004] The storage space used in existing electric vehicles to store battery modules is usually consistent with the size and shape of the matching battery module, making it difficult to achieve universal design and even more difficult to replace other types of batteries.

[0005] Taking CN213139023U as an example, a technology provides an electric vehicle seat bucket and an electric vehicle. Specifically, it has an opening at the top of the seat bucket, a seat cover over the opening, and a battery removably housed inside the seat bucket. This type of product simply uses an existing battery in the seat bucket, rather than modifying the battery itself. In other words, it only describes the use of different types of batteries stacked together, rather than an improvement to the "battery itself" design.

[0006] Therefore, the product listed above is not the same type of product as the battery module that this application urgently needs to provide.

[0007] This application requires an improvement to the "battery module" itself, which can simultaneously solve the problem in the prior art that "it is difficult to achieve a universal design and it is impossible to replace other types of batteries for use". Summary of the Invention

[0008] In view of this, the purpose of the present invention is to provide a battery box with good versatility.

[0009] To achieve the above objectives, some embodiments of the present invention provide the following technical solutions:

[0010] A battery module for a vehicle includes: a battery box, the battery box including at least a first receiving cavity, a second receiving cavity, and a third receiving cavity, the second receiving cavity and the third receiving cavity extending upward from the top of the first receiving cavity, and at least one of the second receiving cavity and the third receiving cavity extending upward in a direction away from each other, the second receiving cavity communicating with the first receiving cavity, and the third receiving cavity communicating with the first receiving cavity; a battery module, at least two of the first receiving cavity, the second receiving cavity, and the third receiving cavity having at least partially different sizes and / or shapes to accommodate battery modules of different sizes and / or types and / or shapes, the battery box being capable of assembling the battery modules of different sizes and / or types and / or shapes; wherein the battery box includes a plurality of sub-shells, the plurality of sub-shells being spliced ​​and sealed together to form the first receiving cavity, the second receiving cavity, and the third receiving cavity. By incorporating multiple accommodating cavities within the battery box and arranging them in a logical manner, the internal space of the battery box is rationally planned. This allows the cavities to accommodate battery modules of different sizes and / or types and / or shapes, ensuring a uniform appearance while accommodating diverse battery modules. This truly achieves multi-purpose functionality and improves the versatility of both the battery box and the battery modules. Furthermore, connecting the first accommodating cavity with a second or third accommodating cavity increases the flexibility of cavity configuration, facilitating the placement of various types of battery modules and providing more space for them. The interconnectedness of multiple accommodating cavities also facilitates wiring and the installation of other components.

[0011] In some embodiments, one of the second and third receiving cavities is arranged perpendicular to the extending direction of the first receiving cavity; or the extending directions of both the second and third receiving cavities are arranged at an angle to the extending direction of the first receiving cavity, and the angle is not equal to 90 degrees. This arrangement allows for better utilization of the internal space of the battery box and facilitates the connection and cooperation of the battery module with other components within the battery box.

[0012] In some embodiments, each sub-shell is integrally formed; and / or there are two sub-shells, which are assembled together along the thickness direction of the battery box. By machining each sub-shell individually, and then assembling them to form a complete set of multiple receiving cavities, the manufacturing process is simplified and assembly is easy.

[0013] In some embodiments, the battery module includes at least a first battery module and a second battery module, with a second receiving cavity communicating with the first receiving cavity and a third receiving cavity communicating with the first receiving cavity, such that the first battery module is received within the second receiving cavity and the first receiving cavity, and the second battery module is received within the third receiving cavity and the first receiving cavity. The communication between the second receiving cavity and the first receiving cavity, and the communication between the third receiving cavity and the first receiving cavity, allows for the adaptation to larger battery modules, improving the versatility of the battery box.

[0014] In some embodiments, the second receiving cavity is connected to the first receiving cavity, and the third receiving cavity is connected to the first receiving cavity. When the battery module is a lead-acid battery, the battery module is disposed in the first receiving cavity; when the battery module is a lithium battery, the battery module is disposed in the second receiving cavity and the first receiving cavity, and / or, in the third receiving cavity and the first receiving cavity. The placement area of ​​the battery box is rationally selected according to the type of battery module, thereby making reasonable use of the internal space of the battery box.

[0015] In some embodiments, the battery module further includes a controller. When the battery module is located in the first receiving cavity, the controller is located in the second or third receiving cavity; when the battery module is located in the second and first receiving cavities, and / or in the third and first receiving cavities, the controller is located in the first receiving cavity. By rationally placing the controller and the battery module within the receiving cavities, a reasonable spatial arrangement of the battery module and the controller is achieved, facilitating installation and maintenance.

[0016] In some embodiments, the battery module includes a first battery module and a second battery module. The controller is disposed at the bottom of the first receiving cavity. The first and second battery modules are inclined to each other with respect to the extending direction of the first receiving cavity, forming a clearance gap. This prevents the first and second battery modules from squeezing the controller and avoids the heat generated by the first and second battery modules from interfering with the controller. Alternatively, the controller can be disposed at the top or front of the battery box, which also facilitates the maintenance and upgrade of the controller, improving the maintainability and upgradeability of the vehicle.

[0017] In some embodiments, the second and third receiving cavities have the same length and width to accommodate battery modules of the same size. This arrangement provides a more rational layout for the battery modules. Specifically, the identical length and width of the second and third receiving cavities offer more options for battery module installation. Even battery modules of the same size can be installed in either the second or third receiving cavity.

[0018] In some embodiments, the battery box further includes a limiting mounting structure, which is detachably disposed within the battery box and is L-shaped. By providing the limiting mounting structure within the battery box, it can adapt to the corners of the battery module, thereby preventing the battery module from wobbling due to insecure installation. This avoids wear caused by wobbling and improves the installation reliability of the battery module. During use, it also prevents noise and safety hazards caused by battery module wobbling.

[0019] In some embodiments, the second and third receiving cavities are connected to form a wiring channel, resulting in a hollow area in the center of the battery box. Multiple first, second, and third receiving cavities are sequentially arranged around the outer periphery of the hollow area, with the wiring channel located above the hollow area. The hollow area is trapezoidal, with the shorter side of the trapezoid closer to the first receiving cavity than the longer side. The wiring channel connects the second and third receiving cavities, allowing connecting wires to pass through the channel to connect the two battery modules when needed. The hollow area also facilitates the placement and removal of the sub-casing during production assembly.

[0020] Another embodiment of the present invention provides a vehicle, including: a vehicle body; a plurality of wheel structures rotatably disposed on the vehicle body; and the aforementioned battery module disposed on the vehicle body.

[0021] In some embodiments, when the battery box is mounted on the vehicle body, the second receiving cavity is positioned closer to the front end of the vehicle body than the third receiving cavity. The thickness of the battery box at the third receiving cavity is less than the thickness of the battery box at the second receiving cavity in the width direction of the vehicle body. By defining the positions and thicknesses of the second and third receiving cavities, and with the third receiving cavity positioned closer to the seat area of ​​the vehicle body, the third receiving cavity is closer to the user's groin area during riding. The smaller thickness prevents the battery box from contacting the user's thigh, avoiding the "leg-locking" problem, reducing interference from the battery box to the user, and conforming to a more ergonomic design.

[0022] In some embodiments, the vehicle frame includes: a vertical beam; a bottom crossbeam; a connecting beam, the front end of which is connected to the bottom end of the vertical beam, and the rear end of which is connected to the rear end of the connecting beam; the front end of the connecting beam is connected to the upper region of the vertical beam; the connecting beam extends downwards at an angle from the front end to the rear end of the vehicle; and a vertical reinforcing beam, the top end of which is connected to the connecting beam, and the bottom end of which is connected to the bottom crossbeam. The vertical reinforcing beam, the vertical beam, the bottom crossbeam, and the connecting beam together form a mounting area for mounting the battery box. The frame bears the weight of the battery box, and the connection and fixation between the frame and the battery box prevents the battery box from shaking. The vertical reinforcing beam strengthens the structural strength of the entire frame, thereby improving the vehicle's load-bearing capacity. The distance between the vertical reinforcing beam and the vertical beam is adapted to the size of the battery box. By providing connecting and fixing structures on both the vertical reinforcing beam and the vertical beam, and connecting and fixing structures connected to the outer surface of the battery box, the connection stability between the battery box and the frame is improved.

[0023] In some embodiments, the bottom of the battery box has at least one first connection point, which is fixed to the bottom crossbeam; the side of the battery box near the upright beam has at least one second connection point, which is fixed to the upright beam or connecting beam; the side of the battery box near the upright reinforcing beam has at least one third connection point, which is fixed to the upright reinforcing beam or connecting beam. By providing multiple connection points, the connection stability between the battery box and the vehicle frame can be improved.

[0024] In some embodiments, the vehicle further includes a seat portion disposed on a connecting beam, wherein the lowest point of the seat portion is positioned higher than the apex of the battery box; and / or the downward projection of the seat portion overlaps with a rear portion of the battery box; and / or the upward projection of the battery box overlaps with a front portion of the seat portion. By positioning the lowest point of the seat portion above the apex of the battery box, interference between the battery box and the user's legs during riding is avoided, thus preventing a decline in user experience. Furthermore, when the seat portion overlaps with the rear portion of the battery box, the thickness of the cavity at the rear of the battery box is less than the thickness of the cavity at the front of the battery box, thereby facilitating adjustments to the riding posture and improving riding comfort. Moreover, from a front-rear perspective, the structure of the vehicle in this invention is more compact.

[0025] In some embodiments, the vehicle further includes: a seat cushion disposed on a connecting beam; and a cover disposed on the connecting beam, with the cover positioned closer to the front of the vehicle than the seat cushion. The cover has a storage cavity inside for accommodating vehicle accessories or for storing items. The projection of the seat cushion onto the front of the vehicle body falls entirely within the projection range of the cover onto the front of the vehicle body. By placing the cover on the connecting beam, the seat cushion is located at the rear of the cover, making it invisible when viewed from the front of the vehicle, thus achieving a "hidden" effect. The vehicle's appearance also resembles a "retro motorcycle," optimizing the overall aesthetics. Furthermore, the cover allows for easy opening and closing to retrieve items, providing storage functionality and enhancing the user experience.

[0026] The present invention has the following beneficial effects:

[0027] By incorporating multiple accommodating cavities within the battery box and arranging them in a logical manner, the internal space of the battery box is rationally planned. This allows the cavities to accommodate battery modules of different sizes and / or types and / or shapes, ensuring both a uniform appearance and the ability to accommodate diverse battery modules. This truly achieves multi-purpose functionality and improves the versatility of both the battery box and the battery modules. This invention solves the problem of poor versatility in existing electric vehicle technologies, which cannot adapt to different battery module models. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 An exploded view of a vehicle provided in one embodiment of the present invention;

[0030] Figure 2 An exploded view of a battery box provided in one embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the assembly relationship of a lead-acid battery in a battery box according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the assembly relationship of a lithium battery within a battery box according to an embodiment of the present invention;

[0033] Figure 5This is a schematic diagram of the assembly relationship of a lithium battery within a battery box, provided in another embodiment of the present invention.

[0034] Figure 6 A top view of a battery box provided for another embodiment of the present invention.

[0035] The above figures include the following reference numerals:

[0036] 10. Battery box; 11. First receiving cavity; 12. Second receiving cavity; 13. Third receiving cavity; 14. Sub-shell; 20. Battery module; 21. First battery module; 22. Second battery module; 30. Controller; 40. Limiting mounting structure; 50. Wiring channel; 60. Hollowed-out area; 70. Vehicle body; 71. Vertical beam; 72. Bottom crossbeam; 73. Connecting beam; 74. Vertical reinforcing beam; 80. Wheel structure; 90. Seat cushion; 100. Cover; 120. Headlight. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of the embodiments of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of the present invention and to simplify 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. Therefore, they should not be construed as limitations on the present invention.

[0041] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0042] In the description of the embodiments of the present invention, it should also be noted that the terms "first," "second," etc., used herein do not specifically refer to any order or sequence, nor are they intended to limit the present case; they are merely used to distinguish components or operations described using the same technical terms.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0044] The technical solution of the present invention will now be described with reference to the accompanying drawings.

[0045] To address the problem of poor versatility of existing electric vehicles and their inability to adapt to different battery module models, this invention provides a battery module and a vehicle for use.

[0046] In some embodiments, such as Figure 1 As shown, the vehicle includes a vehicle body 70, wheel structures 80, a seat cushion 90, and a battery module. The battery module is disposed within the vehicle body 70 and provides a power source. Multiple wheel structures 80 are rotatably mounted on the vehicle body 70. Figure 1 As shown, wheel structures 80 are located at both ends of the vehicle body 70.

[0047] It should be noted that the figure shows two wheel structures 80, but it is possible that there are three, four, or even more wheel structures 80.

[0048] The battery module and vehicle will be explained in detail below.

[0049] In some embodiments, the battery module for a vehicle includes a battery box 10 and a battery module 20. The battery box 10 includes at least a first receiving cavity 11, a second receiving cavity 12, and a third receiving cavity 13, the second receiving cavity 12 and the third receiving cavity 13 extending upward from the top of the first receiving cavity 11, and at least one of the second receiving cavity 12 and the third receiving cavity 13 extending upward in a direction away from each other. At least two of the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13 have at least partially different sizes and / or shapes to accommodate battery modules of different sizes and / or types and / or shapes.

[0050] By setting multiple accommodating cavities within the battery box 10 and arranging them in a reasonable manner, the internal space of the battery box 10 is rationally planned so that the accommodating cavities can accommodate battery modules 20 of different sizes and / or types and / or shapes. This ensures both the uniform appearance of the battery box 10 and the ability to accommodate different battery modules 20 inside, truly achieving multi-purpose functionality and improving the versatility of the battery box 10 and battery modules.

[0051] In addition, only three cavities were mentioned above, but the number of cavities may include, but is not limited to, three. In practice, the number, size and arrangement of the cavities can be reasonably set according to the model of the battery module 20.

[0052] The battery box 10 of this invention can be used to assemble different models of battery modules 20, and can match the appropriate number, size, and type of battery modules 20 according to power requirements. Typically, the required types of battery modules 20 are preset according to the user's needs before leaving the factory. Therefore, during assembly, the preset models of battery modules 20 can be matched and installed according to requirements, greatly improving vehicle safety. Ideally, during regular vehicle maintenance and return to the factory, the type of battery modules 20 can also be adjusted according to the user's latest needs. Therefore, the battery box 10 of this invention has good versatility and can meet the installation requirements of different battery modules 20.

[0053] In some embodiments, such as Figures 1 to 5 As shown, the battery box 10 includes multiple sub-shells 14, which are spliced ​​and sealed together to form a first receiving cavity 11, a second receiving cavity 12, and a third receiving cavity 13. By processing each sub-shell 14 individually and assembling them to form multiple complete receiving cavities, the processing difficulty is reduced, and assembly is simple.

[0054] For ease of processing and assembly, having two sub-shells 14 is more reasonable. In some embodiments, the battery box 10 includes two sub-shells 14, each sub-shell 14 having a region corresponding to the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13. The two sub-shells 14 cooperate to form the complete first receiving cavity 11, second receiving cavity 12, and third receiving cavity 13.

[0055] In some embodiments, the two sub-casings 14 are assembled together along the thickness direction of the battery box 10.

[0056] Specifically, when the two sub-shells 14 are assembled to form the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13, each of the first receiving cavity 11, the second receiving cavity 12, and the third receiving cavity 13 on the two sub-shells 14 is a "half". During installation, the battery module 20 can be placed on one of the sub-shells 14 first, and then the other sub-shell 14 can be placed after it is in place. This method also facilitates the installation of connecting wires between the battery modules 20.

[0057] Of course, the number of sub-shells 14 can also be 4 or 6, or even more. Increasing the number of sub-shells 14 will increase the complexity of assembly to some extent, but if there is a reasonable need to increase the number, the number of sub-shells 14 can be adjusted accordingly.

[0058] In some embodiments, each sub-shell 14 is integrally formed. The integrally formed sub-shell 14 can improve the structural strength and sealing performance of the battery box 10, prevent the battery module 20 from being affected by the external environmental humidity during use, and ensure the safety and reliability of the vehicle.

[0059] In some embodiments, one of the second receiving cavity 12 and the third receiving cavity 13 is arranged perpendicular to the extending direction of the first receiving cavity 11. This arrangement allows for better utilization of the internal space of the battery box 10 and facilitates the connection and cooperation of the battery module 20 within the battery box 10 with other components. This embodiment is not shown in the figures, but can be referred to... Figure 3 The structure of the battery box shown involves adjusting the angle of one of the second receiving cavity 12 and the third receiving cavity 13 so that it is perpendicular to the extending direction of the first receiving cavity 11, that is, making one of them vertically positioned.

[0060] In some embodiments, such as Figures 2 to 5 As shown, the extending directions of the second receiving cavity 12 and the third receiving cavity 13 are both set at an angle to the extending direction of the first receiving cavity 11, and the angle is not equal to 90 degrees. That is, the second receiving cavity 12 and the third receiving cavity 13 both extend at an angle relative to the vertical direction. When such a battery box 10 is placed on a vehicle, it not only occupies space in the front-rear direction of the vehicle, but also in the vertical direction of the vehicle, which can achieve reasonable use of space on the vehicle, and the appearance is also more beautiful, more like a vehicle with a "V-cylinder" engine, which is more likely to be favored by users who pursue fashion.

[0061] It should be noted that since most of the battery modules 20 are common geometric structures, the battery modules 20 placed in the second accommodating cavity 12 or the third accommodating cavity 13 will occupy part of the space in the first accommodating cavity 11. At the same time, there will be spare space in the first accommodating cavity 11. This spare space can be used to place other battery accessories and components, thereby greatly improving the utilization rate of the internal space of the battery box 10 and making the internal structure of the battery box 10 more compact.

[0062] In some embodiments, the second receiving cavity 12 is connected to the first receiving cavity 11, and / or the third receiving cavity 13 is connected to the first receiving cavity 11, so that the battery module 20 is received in the second receiving cavity 12 and the first receiving cavity 11, and / or the battery module 20 is received in the third receiving cavity 13 and the first receiving cavity 11. By connecting the first receiving cavity 11 to the second receiving cavity 12 or the third receiving cavity 13, the combination freedom of the receiving cavities can be increased, thereby facilitating the placement of various types of battery modules 20, providing more space to accommodate the battery modules 20, and the connection of multiple receiving cavities also facilitates wiring and the installation of other components.

[0063] exist Figures 2 to 5 In the embodiment shown, the second receiving cavity 12 and the third receiving cavity 13 are both connected to the first receiving cavity 11. When the size of the battery module 20 is small, the battery module 20 can be selected to be housed in the first receiving cavity 11, the second receiving cavity 12 and the third receiving cavity 13 according to the characteristics of the type.

[0064] In some embodiments, such as Figures 1 to 5 As shown, the battery module 20 includes at least a first battery module 21 and a second battery module 22. A second receiving cavity 12 communicates with a first receiving cavity 11, and a third receiving cavity 13 communicates with a first receiving cavity 11, such that the first battery module 21 is accommodated within the second receiving cavity 12 and the first receiving cavity 11, and the second battery module 22 is accommodated within the third receiving cavity 13 and the first receiving cavity 11. By connecting the second receiving cavity 12 to the first receiving cavity 11 and the third receiving cavity 13 to the first receiving cavity 11, larger-sized battery modules 20 can be accommodated, improving the versatility of the battery box 10.

[0065] In some embodiments, the first battery module 21 and the second battery module 22 are of the same model. Of course, the first battery module 21 and the second battery module 22 can also be battery modules of different models.

[0066] When the first battery module 21 and the second battery module 22 are different models of battery modules, they may be different in size, material, type, etc. In other words, by providing different models of battery modules 20, the battery box 10 can accommodate the placement requirements of different battery modules 20. At the same time, to avoid mutual compression when multiple battery modules 20 are placed simultaneously, different battery modules 20 can be placed in different receiving cavities.

[0067] When the first battery module 21 and the second battery module 22 are the same type of battery module, such as Figure 4 As shown, different installation spaces are provided for the first battery module 21 and the second battery module 22. Specifically, the two first battery modules 21 and the second battery module 22 are installed in the second receiving cavity 12 and the third receiving cavity 13 respectively, with their orientations approximately rotated by 90 degrees.

[0068] In some embodiments, the battery module 20 may be a lead-acid battery or a lithium battery. The second receiving cavity 12 is connected to the first receiving cavity 11, and the third receiving cavity 13 is connected to the first receiving cavity 11.

[0069] In some embodiments, such as Figure 3 As shown, when the battery module 20 is a lead-acid battery, it is housed within the first receiving cavity 11. Specifically, when the battery module 20 is a lead-acid battery, it consists of only one or more sub-modules arranged in a row. To ensure the stability of the lead-acid battery, it is installed and fixed using a horizontal arrangement in the lower space of the battery box 10, thus ensuring its stability. Furthermore, since lead-acid batteries are relatively heavy, placing them within the first receiving cavity 11 ensures even weight distribution within the battery box 10 and facilitates the connection of electrodes to other components via connecting wires, as detailed in the attached diagram. Figure 3 As shown.

[0070] In some embodiments, such as Figure 4 and Figure 5 As shown, when the battery module 20 is a lithium battery, the battery module 20 is disposed in the second receiving cavity 12 and the first receiving cavity 11, and / or, disposed in the third receiving cavity 13 and the first receiving cavity 11. Depending on the type of battery module 20, it will be placed in different areas of the battery box 10 to make reasonable use of the internal space of the battery box 10.

[0071] When the battery module 20 is a lithium battery, in order to meet the range requirements, the space of the first receiving cavity 11 can be utilized, and the two battery modules 20 can be mainly placed in the second receiving cavity 12 and the third receiving cavity 13. For example... Figure 4As shown, at this time, the battery module 20 can be two, namely the first battery module 21 and the second battery module 22, and are located in the second receiving cavity 12 and the first receiving cavity 11, and the third receiving cavity 13 and the first receiving cavity 11, respectively, thereby avoiding the connection line between the first battery module 21 and the second battery module 22 being too long.

[0072] In this invention, the interconnected design between multiple accommodating cavities not only facilitates the installation and replacement of the battery module 20, but also enables the battery modules 20 to be connected in series or in parallel, thereby improving the flexibility and performance of the battery module 20.

[0073] In some embodiments, such as Figures 1 to 5 As shown, the battery module also includes a controller 30. When the battery module 20 is located in the first receiving cavity 11, the controller 30 is located in the second receiving cavity 12 or the third receiving cavity 13; when the battery module 20 is located in the second receiving cavity 12 and the first receiving cavity 11, and / or in the third receiving cavity 13 and the first receiving cavity 11, the controller 30 is located in the first receiving cavity 11. By rationally placing the controller 30 and the battery module 20 within the receiving cavities, a reasonable spatial arrangement of the battery module 20 and the controller 30 is achieved, facilitating installation and maintenance.

[0074] In some embodiments, the controller 30 is fixed by connecting to the inner wall of the second receiving cavity 12 or the third receiving cavity 13 with screws. In this case, the battery module 20 is a lead-acid battery.

[0075] When the first battery module 21 and the second battery module 22 are respectively installed in the battery box 10, such as Figures 4 to 5 As shown, the controller 30 is located at the bottom of the first receiving cavity 11. The first battery module 21 and the second battery module 22 are inclined to the extending direction of the first receiving cavity 11, forming a clearance gap. This prevents the first battery module 21 and the second battery module 22 from squeezing the controller 30 and also prevents the heat generated by the first battery module 21 and the second battery module 22 from interfering with the controller 30. This design allows for a reasonable arrangement of the battery module 20 and the controller 30, effectively preventing the heat generated by the battery module 20 under long-term operation or high load from damaging the controller 30, ensuring the continuous and stable operation of the vehicle, and improving the stability and lifespan of the controller 30.

[0076] In some embodiments, the controller 30 is positioned at the top or front of the battery box 10, which facilitates the maintenance and upgrading of the controller 30 and improves the maintainability and upgradeability of the vehicle.

[0077] In some embodiments, the second receiving cavity 12 and the third receiving cavity 13 have the same length and width, thereby providing more options for the installation of the battery module 20.

[0078] Specifically, such as Figure 5 and Figure 6 As shown, the width W1 of the second receiving cavity 12 is the same as the width W2 of the third receiving cavity 13, and the length L1 of the second receiving cavity 12 is the same as the length L2 of the third receiving cavity 13.

[0079] It should be noted that the first direction X below is perpendicular to the surrounding area. Figure 3 The inward direction, the second direction Y is Figure 1 The vehicle's front-to-back direction, the second direction Y is perpendicular to the first direction X.

[0080] In some embodiments, the second receiving cavity 12 and the third receiving cavity 13 have different shapes, both with approximately rectangular cross-sections, thereby accommodating different types of battery modules 20. For example... Figure 6 As shown, the thickness of the second receiving cavity 12 in the first direction X is greater than the thickness of the third receiving cavity 13, while the thickness of the second receiving cavity 12 in the second direction is less than the thickness of the third receiving cavity 13. This arrangement of the battery box 10 facilitates the user's adjustment of riding posture while riding the vehicle, improving riding comfort.

[0081] In some embodiments, such as Figure 2 , Figures 4 to 5 As shown, the battery box 10 also includes a limiting mounting structure 40, which is detachably disposed within the battery box 10 and is L-shaped. By providing the limiting mounting structure 40 within the battery box 10, the limiting mounting structure 40 can adapt to the corners of the battery module 20, thereby preventing the battery module 20 from shaking due to insecure installation. This avoids wear caused by shaking and improves the installation reliability of the battery module 20. During use, the battery box 10 also prevents noise and safety hazards caused by the shaking of the battery module 20.

[0082] In some embodiments, the L-shaped limiting mounting structure 40 is detachably disposed in the first receiving cavity 11. After the first battery module 21 and the second battery module 22 are installed, their bottoms abut against the limiting mounting structure 40 to prevent shaking and ensure that the tops of the first battery module 21 and the second battery module 22 are spaced apart from the second receiving cavity 12 and the third receiving cavity 13. The first battery module 21, the second battery module 22 and the bottom of the first receiving cavity 11 form the aforementioned clearance gap to accommodate the controller 30.

[0083] In some embodiments, such as Figures 1 to 5As shown, the second receiving cavity 12 and the third receiving cavity 13 are connected to form a wiring channel 50, so that a hollow area 60 is formed in the middle of the battery box 10. Multiple first receiving cavities 11, second receiving cavities 12 and third receiving cavities 13 are arranged sequentially around the outer periphery of the hollow area 60, and the wiring channel 50 is located above the hollow area 60. The hollow area 60 is trapezoidal, and the shorter side of the trapezoid is closer to the first receiving cavity 11 than the longer side of the trapezoid. The wiring channel 50 connects the second receiving cavity 12 and the third receiving cavity 13. When the battery modules 20 in the two receiving cavities need to be connected, the connecting wire can pass through the wiring channel 50 to connect the two battery modules 20. The hollow area 60 also facilitates the placement and removal of the sub-casing 14 during production assembly.

[0084] In some embodiments, the wiring channel 50 connects the second receiving cavity 12 and the third receiving cavity 13 respectively, thereby ensuring that the connecting wires, after connecting the first battery module 21 and the second battery module 22, are sealed within the battery box 10, improving the safety performance of the battery module 20. Simultaneously, this design not only optimizes the internal spatial layout of the battery box 10 but also facilitates wiring connections between the battery modules 20, improving the assembly efficiency of the battery modules 20. Furthermore, the hollow area 60 can serve as a heat dissipation channel, improving the heat dissipation performance of the battery module 20 and extending its lifespan. The design of the hollow area 60 also allows for forced cooling using natural wind during vehicle operation, further improving heat dissipation efficiency, especially in high-speed vehicles, where this effect is more pronounced and helps maintain stable battery performance.

[0085] In some embodiments, when the battery box 10 is mounted on the vehicle body 70, the second receiving cavity 12 is positioned near the front end of the vehicle body 70 relative to the third receiving cavity 13. In the width direction of the vehicle body 70, the thickness of the battery box 10 at the third receiving cavity 13 is less than the thickness of the battery box 10 at the second receiving cavity 12. By defining the positions and thicknesses of the second receiving cavity 12 and the third receiving cavity 13, and with the third receiving cavity 13 being closer to the seat portion 90 of the vehicle body 70, the third receiving cavity 13 is closer to the user's upper thigh area during riding. The smaller thickness reduces the encroachment of the battery box 10 on the user's leg space, avoiding the problem of "leg jamming," reducing the interference caused by the battery box 10 to the user, improving riding comfort, and conforming to ergonomic design.

[0086] In some embodiments, such as Figure 1As shown, the vehicle frame 70 includes a vertical beam 71, a bottom crossbeam 72, a connecting beam 73, and a vertical reinforcing beam 74. The front end of the bottom crossbeam 72 is connected to the bottom end of the vertical beam 71, and the rear end of the bottom crossbeam 72 is connected to the rear end of the connecting beam 73. The front end of the connecting beam 73 is connected to the upper area of ​​the vertical beam 71, and the connecting beam 73 extends downwards at an angle from the front end to the rear end of the vehicle. The top end of the vertical reinforcing beam 74 is connected to the connecting beam 73, and the bottom end of the vertical reinforcing beam 74 is connected to the bottom crossbeam 72. The vertical reinforcing beam 74, the vertical beam 71, the bottom crossbeam 72, and the connecting beam 73 together form a mounting area for the battery box 10. The frame bears the weight of the battery box 10, and the connection and fixation between the frame and the battery box 10 prevents the battery box 10 from shaking. The vertical reinforcing beam 74 strengthens the structural strength of the entire frame, thereby improving the vehicle's load-bearing capacity. The distance between the vertical reinforcing beam 74 and the vertical beam 71 is adapted to the size of the battery box 10. By providing connecting and fixing structures on both the upright reinforcing beam 74 and the upright beam 71, and connecting and fixing structures being connected to the outer surface of the battery box 10, the connection stability between the battery box 10 and the vehicle frame is improved.

[0087] In some embodiments, the upright beam 71, bottom crossbeam 72, connecting beam 73, and upright reinforcing beam 74 are all made of alloy materials to improve structural strength, and the connections are made by welding to ensure the connection effect. A headlight 120 is also provided at the front end of the frame to adapt to low-light environments.

[0088] In some embodiments, the bottom of the battery box 10 has at least one first connection point, which is fixed to the bottom crossbeam 72; the side of the battery box 10 near the upright beam 71 has at least one second connection point, which is fixed to the upright beam 71 or the connecting beam 73; the side of the battery box 10 near the upright reinforcing beam 74 has at least one third connection point, which is fixed to the upright reinforcing beam 74 or the connecting beam 73. By providing multiple connection points, the connection strength between the battery box 10 and the vehicle frame can be improved.

[0089] In some embodiments, the battery box 10 is detachably connected to the vehicle frame, specifically including but not limited to bolted connections and hinges, to prevent the battery box 10 from detaching while the vehicle is moving forward. For convenient charging, a charging port may also be provided on the battery box 10 or the vehicle frame.

[0090] In some embodiments, the vehicle further includes a seat 90 disposed on the connecting beam 73, wherein the lowest point of the seat 90 is higher than the apex of the battery box 10; and / or the downward projection of the seat 90 overlaps with the rear end portion of the battery box 10; and / or the upward projection of the battery box 10 overlaps with the front end portion of the seat 90. Using a vertical plane perpendicular to the vehicle's length direction as the projection plane, the projection area formed by the seat 90 on the projection plane at least partially overlaps with the projection area of ​​the battery box 10 on the projection plane. By setting the lowest point of the seat 90 above the apex of the battery box 10, interference between the battery box 10 and the user's legs during riding is avoided, thus preventing a decline in user experience. Furthermore, when the seat 90 overlaps with the rear end portion of the battery box 10, the thickness of the accommodating cavity at the rear end of the battery box 10 is less than the thickness of the accommodating cavity at the front end of the battery box 10, thereby facilitating the user's adjustment of riding posture and improving riding comfort. Moreover, from the perspective of the vehicle's front-rear direction, the structure of the vehicle in this invention is more compact.

[0091] The seat cushion 90 overlaps with the battery box 10, which makes good use of the vehicle's space.

[0092] In some embodiments, such as Figure 1 As shown, the vehicle also includes a seat 90 and a cover 100. The seat 90 is mounted on the connecting beam 73. The cover 100 is mounted on the connecting beam 73, and the cover 100 is positioned closer to the front of the vehicle than the seat 90. The cover 100 has an internal cavity for accommodating vehicle accessories or for storage. Using a vertical plane perpendicular to the vehicle's length as its projection plane, the projection area of ​​the seat 90 onto the front of the vehicle body 70 completely falls within the projection area of ​​the cover 100 onto the front of the vehicle body 70. By mounting the cover 100 on the connecting beam 73, and with the seat 90 located at the rear of the cover 100, the seat 90 is not visible when viewed from the front of the vehicle, achieving a "hidden" effect. This also makes the vehicle resemble a "retro motorcycle," optimizing its overall appearance. In addition, the cover 100 can be easily opened or closed by the user to take out the items inside the cover 100, giving the cover 100 a storage function and improving the user experience.

[0093] Specifically, the cover 100 has a structure similar to a motorcycle's fuel tank, thereby improving aesthetics and meeting users' requirements for motorcycle style. Furthermore, in some embodiments, functional components such as speakers, mobile phone charging ports, and cooling modules (equivalent to portable mini-fridges) can be housed within the cover 100.

[0094] The present invention has the following beneficial effects:

[0095] By setting multiple accommodating cavities within the battery box 10 and arranging them in a reasonable manner, the internal space of the battery box 10 is rationally planned so that the accommodating cavities can accommodate battery modules 20 of different sizes and / or types and / or shapes. This ensures both the uniform appearance of the battery box 10 and the ability to accommodate different battery modules 20 inside, truly achieving multi-purpose functionality and improving the versatility of the battery box 10 and battery modules.

[0096] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0097] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A battery module for a vehicle, characterized in that, include: A battery box, the battery box including at least a first receiving cavity, a second receiving cavity, and a third receiving cavity, the second receiving cavity and the third receiving cavity extending upward from the top of the first receiving cavity, and at least one of the second receiving cavity and the third receiving cavity extending upward in a direction away from each other, the second receiving cavity communicating with the first receiving cavity, and the third receiving cavity communicating with the first receiving cavity; A battery module, wherein at least two of the first receiving cavity, the second receiving cavity, and the third receiving cavity are at least partially different in size and / or shape to accommodate battery modules of different sizes and / or types and / or shapes, and the battery box is capable of assembling battery modules of different sizes and / or types and / or shapes; The battery box includes multiple sub-shells, which are spliced ​​and sealed together to form the first receiving cavity, the second receiving cavity, and the third receiving cavity; Wherein, one of the second receiving cavity and the third receiving cavity is arranged perpendicular to the extending direction of the first receiving cavity; or the extending directions of the second receiving cavity and the third receiving cavity are both arranged at an angle to the extending direction of the first receiving cavity, and the angle is not equal to 90 degrees.

2. The battery module for a vehicle according to claim 1, characterized in that, Each of the sub-shells is integrally formed; and / or There are two sub-shells, and the two sub-shells are assembled together along the thickness direction of the battery box.

3. The battery module for vehicles according to claim 1, characterized in that, The battery module also includes a controller. When the battery module is located in the first accommodating cavity, the controller is located in the second accommodating cavity or the third accommodating cavity; When the battery module is located in the second and first accommodating cavities, and / or in the third and first accommodating cavities, the controller is located in the first accommodating cavity.

4. The battery module for vehicles according to claim 1, characterized in that, The battery module includes a first battery module and a second battery module. The controller is disposed at the bottom of the first receiving cavity. The first battery module and the second battery module are inclined with respect to the extending direction of the first receiving cavity, forming a clearance gap to prevent the first battery module and the second battery module from squeezing the controller; or The controller is located at the top or front of the battery box.

5. The battery module for a vehicle according to claim 1, characterized in that, The second and third accommodating cavities have the same length and width to accommodate battery modules of the same specifications.

6. The battery module for a vehicle according to claim 1, characterized in that, The battery box also includes a limiting mounting structure, which is detachably disposed inside the battery box and is L-shaped.

7. The battery module for a vehicle according to claim 1, characterized in that, The second receiving cavity is connected to the third receiving cavity to form a wiring channel, so that a hollow area is formed in the middle of the battery box. A plurality of first receiving cavities, second receiving cavities and third receiving cavities are arranged sequentially around the outer periphery of the hollow area, and the wiring channel is located above the hollow area. The hollow area is trapezoidal, and the shorter side of the trapezoid is closer to the first receiving cavity than the longer side of the trapezoid.

8. The battery module for a vehicle according to any one of claims 1 to 7, characterized in that, When the battery module is a lead-acid battery, the battery module is disposed in the first receiving cavity; When the battery module is a lithium battery, the battery module is disposed in the second receiving cavity and the first receiving cavity, and / or disposed in the third receiving cavity and the first receiving cavity.

9. A vehicle, characterized in that, include: Vehicle body; A wheel structure, wherein there are multiple wheel structures, and the multiple wheel structures are rotatably mounted on the vehicle body; The battery module according to any one of claims 1 to 8, wherein the battery module is disposed on the vehicle body.

10. The vehicle according to claim 9, characterized in that, When the battery box is installed on the vehicle body, the second receiving cavity is positioned relative to the third receiving cavity near the front end of the vehicle body, wherein... In the width direction of the vehicle body, the thickness of the battery box in the third receiving cavity is less than the thickness of the battery box in the second receiving cavity.

11. The vehicle according to claim 9, characterized in that, The vehicle frame includes: Erect beams; Bottom crossbeam; The connecting beam has its front end connected to the bottom end of the vertical beam, and its rear end connected to the rear end of the connecting beam. The front end of the connecting beam is connected to the upper region of the vertical beam, and the connecting beam extends downward at an incline from the front end to the rear end of the vehicle. A vertical reinforcing beam is provided, the top end of which is connected to the connecting beam, and the bottom end of which is connected to the bottom crossbeam. The vertical reinforcing beam, the vertical beam, the bottom crossbeam, and the connecting beam together form an installation area for installing the battery box.

12. The vehicle according to claim 11, characterized in that, The bottom of the battery box has at least one first connection point, which is fixed to the bottom crossbeam; The battery box has at least one second connection point on the side near the upright beam, and the second connection point is fixed to the upright beam or the connecting beam. The battery box has at least one third connection point on the side near the upright reinforcing beam, and the third connection point is fixed to the upright reinforcing beam or the connecting beam.

13. The vehicle according to claim 11, characterized in that, The vehicle also includes a seat cushion portion, which is disposed on the connecting beam, wherein... The lowest point of the seat cushion is set higher than the apex of the battery compartment; and / or The seat cushion portion can be projected downwards to overlap with a portion of the rear end of the battery compartment; and / or The upward projection of the battery box can overlap with the front part of the seat cushion.

14. The vehicle according to claim 13, characterized in that, The vehicle also includes: Seat cushion portion, the seat cushion portion being disposed on the connecting beam; A cover is disposed on the connecting beam and is located near the front end of the vehicle relative to the seat cushion. The cover has a storage cavity inside for accommodating vehicle accessories or for storing items. The projection of the seat cushion toward the front end of the vehicle body falls entirely within the projection range of the cover toward the front end of the vehicle body.

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