Commercial vehicle battery pack and vehicle
By designing a commercial vehicle battery pack on the vehicle longitudinal beam, the special arrangement and integration method of the three battery modules is solved, and efficient space utilization and cost reduction are achieved.
Patent Information
- Application Number
- CN202422159704.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In the prior art, the space utilization rate of power batteries is low when installed on a vehicle, requiring a combination of multiple models of standard boxes, resulting in high development costs and fixed frame occupying space.
A commercial vehicle battery pack is designed. One of the three battery modules is located between two longitudinal beams, and the other two are located on the opposite side of the longitudinal beam, which defines the avoidance groove and integrates to form a large battery pack to simplify electrical connections, and uses the longitudinal space to adjust the number of battery cells to meet different power requirements.
It improves the space utilization rate of the battery pack, reduces development costs, simplifies electrical connections, adapts to different power requirements, and realizes platformization and sharing of parts.
Smart Images
Figure CN223093019U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power batteries, in particular to a commercial vehicle battery pack and a vehicle. Background Art
[0002] In the related art, power batteries are usually installed on the vehicle beams. In the related art, the vehicle batteries are usually arranged in the form of standard boxes in groups. Due to different vehicle structures and requirements, it is usually necessary to design different combinations of battery standard boxes in terms of quantity or model to match the assembly requirements of different vehicles, resulting in a relatively high development cost. In addition, when fixing each standard box on the beam, a corresponding frame needs to be set for each standard box, and the frame fixes each standard box separately. Fixing each standard box separately through the frame will occupy too much space, resulting in low space utilization rate of the battery. Therefore, improvement is needed. Summary of the Utility Model
[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a commercial vehicle battery pack which is suitable for being installed on the vehicle beam. By arranging one of the three battery modules of the commercial vehicle battery pack between two longitudinal beams, and the other two battery modules on the opposite sides of the two longitudinal beams respectively, and defining a first avoidance groove for avoiding the longitudinal beam between two adjacent battery modules, the space on the vehicle beam can be fully utilized, the commercial vehicle battery pack does not interfere with the vehicle beam, the occupied space of the commercial vehicle battery pack is small, and the space utilization rate of the commercial vehicle battery pack can be increased; moreover, by integrating the three battery modules into a large commercial vehicle battery pack, it is convenient to install the whole commercial vehicle battery pack on the vehicle beam as a whole, eliminating the need for setting corresponding frames for each standard box in the related art, and simplifying the electrical connection harness and connectors; in addition, by arranging a plurality of battery cells of the battery pack in the battery module along the extension direction of the longitudinal beam, the longitudinal space on the vehicle beam can be fully utilized, and the length of the commercial vehicle battery pack along the extension direction of the longitudinal beam can be adjusted by adjusting the number of battery cells arranged along the extension direction of the longitudinal beam in the battery pack, so as to adapt to the power requirements of different vehicles of the whole vehicle, realizing the platformization of the commercial vehicle battery pack solution and the sharing of parts, and reducing the development cost.
[0004] The utility model also provides a vehicle with the above-mentioned commercial vehicle battery pack.
[0005] A commercial vehicle battery pack according to an embodiment of the first aspect of the present invention is adapted to be installed on a vehicle beam. The vehicle beam includes two longitudinal beams extending in a first direction, and the two longitudinal beams are arranged at intervals in a second direction. The second direction, the first direction, and the up-down direction are perpendicular to each other pairwise. The commercial vehicle battery pack includes three battery modules arranged in the second direction. One of the battery modules is adapted to be located between the two longitudinal beams, and the other two battery modules are adapted to be located on the opposite sides of the two longitudinal beams respectively. A first avoidance groove for avoiding the longitudinal beam is defined between two adjacent battery modules. Each battery module includes one or more layers of battery modules arranged in the up-down direction. The battery module includes one or more groups of a plurality of battery packs arranged in the second direction. Each battery pack includes a plurality of battery cells arranged in the first direction.
[0006] According to the commercial vehicle battery pack of the embodiment of the present invention, by making one of the three battery modules of the commercial vehicle battery pack located between the two longitudinal beams, the other two battery modules located on the opposite sides of the two longitudinal beams respectively, and defining a first avoidance groove for avoiding the longitudinal beam between two adjacent battery modules, the space on the vehicle beam can be fully utilized, the commercial vehicle battery pack does not interfere with the vehicle beam, the occupied space of the commercial vehicle battery pack is small, and the space utilization rate of the commercial vehicle battery pack can be increased; and, by integrating the three battery modules into a large commercial vehicle battery pack, it is convenient to install the whole commercial vehicle battery pack on the vehicle beam as a whole, eliminating the need to set corresponding frames for each standard box in the related art, and the electrical connection harness and connectors can be simplified; in addition, by arranging the plurality of battery cells in the battery pack in the battery module along the extension direction of the longitudinal beam, the longitudinal space on the vehicle beam can be fully utilized, and the length of the commercial vehicle battery pack along the extension direction of the longitudinal beam can be adjusted by adjusting the number of battery cells arranged in the battery pack along the extension direction of the longitudinal beam, so as to adapt to the power requirements of different vehicles, realize the platformization of the commercial vehicle battery pack solution and the sharing of parts, and make the development cost lower.
[0007] According to some embodiments of the present invention, the battery module located between the two longitudinal beams is the first battery module. A part of the first battery module is located between the two longitudinal beams, and another part of the first battery module is located below the two longitudinal beams.
[0008] According to some embodiments of the present invention, in the second direction, the outer sides of the two longitudinal beams facing away from each other are the outer sides of the longitudinal beams. The distance between the outer sides of the two longitudinal beams in the second direction is y, the width of each longitudinal beam in the second direction is b, the width of each battery pack in the second direction is c, the battery module located between the two longitudinal beams is the first battery module, and each layer of the battery module of the first battery module includes N groups of the battery packs arranged in the second direction, where N≥1 and is a positive integer;
[0009] Among them, y, b, c, and N satisfy: y - 2b - N * 1.05c ≥ 50, where the units of y, b, and c are all mm.
[0010] According to some embodiments of the present invention, each of the battery modules includes two layers of battery modules arranged in the up-down direction.
[0011] According to some embodiments of the present invention, the battery module located between the two longitudinal beams is the first battery module. At least a part of the battery module located in the upper layer of the first battery module is located within the accommodation space defined by the two longitudinal beams, and the battery module located in the lower layer of the first battery module is located below the two longitudinal beams.
[0012] According to some embodiments of the present invention, the battery module located between the two longitudinal beams is the first battery module. The height dimension of the longitudinal beam in the up-down direction is h1, and the distance between the lower surface of the longitudinal beam and the upper surface of the first battery module in the up-down direction is h2. The ratio range of h2 to h1 is 0.5 - 0.9.
[0013] According to some embodiments of the present invention, the battery module located between the two longitudinal beams is the first battery module. The minimum distance between the first battery module and the longitudinal beam in the second direction is greater than 25 mm.
[0014] According to some embodiments of the present invention, the battery module located between the two longitudinal beams is the first battery module. The vehicle beam includes a cross beam connected between the two longitudinal beams, and a second avoidance groove for avoiding the cross beam is formed on the first battery module.
[0015] According to some embodiments of the present invention, the vehicle beam further includes a connection bracket. The connection bracket is connected to the opposite sides of the vehicle beam along the second direction. The connection bracket includes a connection cross plate. The two battery modules located on the opposite sides of the two longitudinal beams away from each other are the second battery module and the third battery module respectively. Third avoidance grooves for avoiding the connection cross plate are formed on both the second battery module and the third battery module.
[0016] According to some embodiments of the present invention, the connection cross plate is located on the opposite sides of the cross beam along the second direction, and the third avoidance grooves are located on the opposite sides of the second avoidance groove along the second direction and are communicated with the second avoidance groove.
[0017] According to some embodiments of the present utility model, each of the battery modules includes two sub-battery modules arranged in a first direction, and each of the sub-battery modules includes one or more battery modules arranged in an up-down direction. A second avoidance groove or a third avoidance groove is defined between the two sub-battery modules of the battery module.
[0018] According to some embodiments of the present utility model, the commercial vehicle battery pack includes: a lower box body; an upper cover, which is arranged on the upper part of the lower box body and defines three installation cavities arranged in a second direction between the upper cover and the lower box body. The three battery modules are respectively accommodated in the three installation cavities.
[0019] According to some embodiments of the present utility model, two middle partition beams extending in the first direction are arranged in the lower box body, and the two middle partition beams are arranged at intervals in the second direction to divide the space in the lower box body into three installation slots arranged in the second direction. The upper cover includes three separately formed sub-upper covers, and the three sub-upper covers respectively correspond to the three installation slots. Each sub-upper cover and the inner wall of the installation slot jointly define a single installation cavity.
[0020] According to some embodiments of the present utility model, the lower box body is an integrally formed part; and / or, each sub-upper cover is detachably connected to the lower box body.
[0021] A vehicle according to an embodiment of the second aspect of the present utility model includes: a vehicle body including the vehicle beam; and a commercial vehicle battery pack according to an embodiment of the first aspect of the present utility model.
[0022] According to the vehicle of the embodiment of the present utility model, by including the commercial vehicle battery pack according to the embodiment of the first aspect of the present utility model, three battery modules are integrated to form a large commercial vehicle battery pack, which is convenient to install the entire commercial vehicle battery pack onto the vehicle beam as a whole, and the electrical connection harness and connectors can be simplified. The space utilization rate of the commercial vehicle battery pack is relatively large, and the length of the commercial vehicle battery pack along the extension direction of the longitudinal beam can also be adjusted to adapt to the power requirements of different vehicles.
[0023] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:
[0025] Figure 1 is a separated view of a commercial vehicle battery pack and a vehicle beam according to some embodiments of the present utility model, wherein the commercial vehicle battery pack is not yet installed on the vehicle beam;
[0026] Figure 2 is an assembly drawing of a commercial vehicle battery pack and a vehicle beam according to some embodiments of the present invention, wherein the commercial vehicle battery pack is installed on the vehicle beam;
[0027] Figure 3 is Figure 2 a schematic cross-sectional view of the assembly drawing of the commercial vehicle battery pack and the vehicle beam in
[0028] Figure 4 is a schematic diagram of a commercial vehicle battery pack according to some embodiments of the present invention;
[0029] Figure 5 is Figure 4 an exploded view of the commercial vehicle battery pack in
[0030] Figure 6 is Figure 4 a top view of the commercial vehicle battery pack in
[0031] Figure 7 is Figure 4 an exploded view of the battery module in
[0032] Figure 8 is Figure 7 a schematic diagram of the battery module in
[0033] Reference numerals:
[0034] 100, commercial vehicle battery pack;
[0035] 10, battery module; 11, first avoidance groove; 12, second avoidance groove; 13, third avoidance groove; 14, battery module group; 15, battery pack; 16, battery cell; 17, first battery module; 18, second battery module; 19, third battery module; 20, sub-battery module;
[0036] 30, lower box body; 31, upper cover; 32, installation cavity; 33, middle partition beam; 34, installation groove; 35, sub-upper cover;
[0037] 40, vehicle beam; 41, longitudinal beam; 42, cross beam; 43, connecting bracket; 44, connecting cross plate; 45, outer side surface of the longitudinal beam. Detailed implementation manners
[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0039] Next, refer toFigures 1-8 Describe a commercial vehicle battery pack 100 and a vehicle according to an embodiment of the present utility model.
[0040] The commercial vehicle battery pack 100 according to the first aspect embodiment of the present utility model is adapted to be installed on the vehicle beam 40. Refer to Figure 1 and Figure 2 , the vehicle beam 40 includes two longitudinal beams 41 extending in a first direction, and the two longitudinal beams 41 are arranged at intervals in a second direction. The second direction, the first direction, and the up-down direction are perpendicular to each other in pairs.
[0041] Optionally, refer to Figure 1 and Figure 2 , the vehicle beam 40 includes a cross beam 42 extending in the second direction, and the cross beam 42 is connected between the two longitudinal beams 41. There may be multiple cross beams 42, and the multiple cross beams 42 are arranged at intervals in the first direction. For example, the vehicle beam 40 includes three cross beams 42, and the three cross beams 42 are respectively connected between the two longitudinal beams 41, and the three cross beams 42 are arranged in the first direction. By making the vehicle beam 40 include a cross beam 42 extending in the second direction, the connection between the vehicle beams 40 can be made more stable.
[0042] Refer to Figure 2 , the commercial vehicle battery pack 100 includes three battery modules 10 arranged in the second direction, wherein one battery module 10 is adapted to be located between the two longitudinal beams 41, and the other two battery modules 10 are adapted to be respectively located on the opposite sides of the two longitudinal beams 41. By making the commercial vehicle battery pack 100 include three battery modules 10 and one of the battery modules 10 is located between the two longitudinal beams 41, the space between the two longitudinal beams 41 can be fully utilized, and the space utilization rate of the commercial vehicle battery pack 100 can be improved; by making the other two battery modules 10 be respectively located on the opposite sides of the two longitudinal beams 41 in the second direction, the space on both sides of the longitudinal beams 41 can be fully utilized, and the space utilization rate of the commercial vehicle battery pack 100 can be improved. Optionally, the commercial vehicle battery pack 100 and the vehicle beam 40 are detachably connected. By making the commercial vehicle battery pack 100 and the vehicle beam 40 be detachably connected, when the commercial vehicle battery pack 100 is repaired or maintained, it is more convenient for the maintenance personnel to disassemble and replace the commercial vehicle battery pack 100, and the maintenance difficulty is reduced.
[0043] Optionally, the commercial vehicle battery pack 100 can be fixed on the vehicle beam 40 through fasteners. By making the commercial vehicle battery pack 100 be fixed on the vehicle beam 40 through fasteners, the fixation between the commercial vehicle battery pack 100 and the vehicle can be made more sufficient. Refer to Figures 1-3, a first avoidance groove 11 for avoiding the longitudinal beam 41 is defined between two adjacent battery modules 10. By providing the first avoidance groove 11 for avoiding the longitudinal beam 41 between two adjacent battery modules 10, the longitudinal beam 41 can be directly received in the first avoidance groove 11, making the connection between the battery module 10 and the longitudinal beam 41 more sufficient; and interference between the battery module 10 and the longitudinal beam 41 can be avoided.
[0044] Referring to Figures 7-8 , each battery module 10 includes one or more layers of battery modules 14 arranged in the vertical direction. The battery module 14 includes one or more groups of multiple battery packs 15 arranged in the second direction. Each battery pack 15 includes multiple battery cells 16 arranged in the first direction. By making the battery module 14 include one or more groups of multiple battery packs 15 arranged in the second direction, and each battery pack 15 includes multiple battery cells 16 arranged in the first direction, the commercial vehicle battery pack 100 can increase or decrease the length in the first direction or increase or decrease the multiple battery packs 15 arranged in the second direction, thereby increasing or decreasing the number of battery cells 16 to match vehicles with different sizes and battery capacity requirements.
[0045] For example, when the length of the vehicle in the first direction is small and the installation space provided by the vehicle for the commercial vehicle battery pack 100 in the first direction is small, the length of the commercial vehicle battery pack 100 in the first direction can be reduced, that is, the number of battery cells 16 arranged in the first direction of the battery pack 15 is reduced, so that the commercial vehicle battery pack 100 can be matched with the vehicle, and the commercial vehicle battery pack 100 can be successfully installed on the vehicle.
[0046] For another example, when the vehicle needs a larger battery capacity to increase the cruising range, the length of the commercial vehicle battery pack 100 in the first direction can be increased, that is, the number of battery cells 16 arranged in the first direction is increased, or the number of battery packs 15 arranged in the second direction can be increased, thereby increasing the capacitance of the commercial vehicle battery pack 100 to meet the requirements of long-distance driving of the vehicle.
[0047] Among them, multiple battery modules 10 are combined to form a large commercial vehicle battery pack 100. In the traditional standard box mode, each standard box is installed separately, and a large number of wire harnesses and connectors are required for series and parallel connections between the standard boxes. The cost of wire harnesses and connectors is relatively high, and the wire harnesses and connectors between the standard boxes occupy space, resulting in low space utilization rate of the commercial vehicle battery pack 100. By combining multiple battery modules 10 to form a large commercial vehicle battery pack 100, the electrical connection between the battery modules 10 is relatively simple, the use of wire harnesses and connectors can be reduced, the cost can be lowered, and the space occupied by the commercial vehicle battery pack 100 can be reduced; in addition, the connection between the water-cooling structures in the commercial vehicle battery pack 100 is also simpler, reducing the space occupied by the commercial vehicle battery pack 100.
[0048] By assembling three battery modules 10 to form a commercial vehicle battery pack 100, it is possible to avoid using a separate frame to fix each standard box battery, reduce the space occupied by the connection components, and improve the space utilization rate of the battery. Moreover, the commercial vehicle battery pack 100 no longer requires an additional frame to be fixed on the vehicle, reducing costs.
[0049] For the commercial vehicle battery pack 100 according to the embodiment of the present utility model, by arranging one of the three battery modules 10 of the commercial vehicle battery pack 100 between two longitudinal beams 41, and the other two battery modules 10 on the opposite sides of the two longitudinal beams 41 respectively, and defining a first avoidance groove 11 for avoiding the longitudinal beam 41 between two adjacent battery modules 10, the space on the vehicle beam 40 can be fully utilized. The commercial vehicle battery pack 100 does not interfere with the vehicle beam 40, and the commercial vehicle battery pack 100 occupies less space, which can increase the space utilization rate of the commercial vehicle battery pack 100. Moreover, by integrating the three battery modules 10 into a large commercial vehicle battery pack 100, it is convenient to install the entire commercial vehicle battery pack 100 onto the vehicle beam 40 as a whole, eliminating the need for a corresponding frame for each standard box in the related art, and simplifying the electrical connection harness and connectors. Additionally, by arranging a plurality of battery cells 16 of the battery pack 15 in the battery module 14 along the extension direction of the longitudinal beam 41, the longitudinal space on the vehicle beam 40 can be fully utilized, and the length of the commercial vehicle battery pack 100 along the extension direction of the longitudinal beam 41 can be adjusted by adjusting the number of battery cells 16 arranged along the extension direction of the longitudinal beam 41 in the battery pack 15, so as to adapt to the power requirements of different vehicles, realizing the platformization of the commercial vehicle battery pack 100 solution and the sharing of parts, resulting in a lower development cost.
[0050] According to some embodiments of the present utility model, referring to Figure 3 , in the second direction, the outer sides of the two longitudinal beams 41 facing away from each other are the outer longitudinal beam sides 45, the distance between the outer longitudinal beam sides 45 of the two longitudinal beams 41 in the second direction is y, the width of each longitudinal beam 41 in the second direction is b, the width of each battery pack 15 in the second direction is c, the battery module 10 located between the two longitudinal beams 41 is the first battery module 17, and each layer of battery module 14 of the first battery module 17 includes N groups of battery packs 15 arranged in the second direction, where N≥1 and is a positive integer;
[0051] Among them, y, b, c, and N satisfy: y - 2b - N * 1.05c ≥ 50, where the units of y, b, and c are all mm. By making y, b, c, and N satisfy: y - 2b - N * 1.05c ≥ 50, a battery module 14 composed of battery packs 15 with appropriate sizes and appropriate quantities can be selected according to the width of the space defined between the two longitudinal beams 41 in the second direction, so that the space between the two longitudinal beams 41 can be fully utilized to accommodate the battery module 14, enabling the first battery module 17 to be successfully installed between the two longitudinal beams 41 and avoiding interference between the first battery module 17 and the longitudinal beams 41.
[0052] For example, the value range of b is 50 mm to 150 mm. For example, b = 80 mm. For example, N = 3.
[0053] According to some embodiments of the present invention, referring to Figure 2 , the battery module 10 located between the two longitudinal beams 41 is the first battery module 17. A part of the first battery module 17 is located between the two longitudinal beams 41, and another part of the first battery module 17 is located below the two longitudinal beams 41. By making a part of the first battery module 17 located between the two longitudinal beams 41, the first battery module 17 can make full use of the space between the two longitudinal beams 41, increasing the space utilization rate of the commercial vehicle battery pack 100; by making another part of the first battery module 17 located below the two longitudinal beams 41, the first battery module 17 can increase its volume and thus increase its power storage capacity to meet the vehicle's requirements while avoiding interference with other components.
[0054] According to some embodiments of the present invention, referring to Figure 5 , each battery module 10 includes two layers of battery modules 14 arranged in the up-down direction. By making each battery module 10 include two layers of battery modules 14 arranged in the up-down direction, the battery module 10 can increase its power storage capacity by increasing the number of battery modules 14 to meet the vehicle's requirements.
[0055] According to some embodiments of the present invention, referring to Figure 2 , the battery module 10 located between the two longitudinal beams 41 is the first battery module 17. At least part of the battery module 14 located in the upper layer of the first battery module 17 is located within the accommodation space defined by the two longitudinal beams 41, and the battery module 14 located in the lower layer of the first battery module 17 is located below the two longitudinal beams 41. By making at least part of the battery module 14 located in the upper layer of the first battery module 17 located within the accommodation space defined by the two longitudinal beams 41, the first battery module 17 can make full use of the accommodation space between the two longitudinal beams 41, increasing the space utilization rate of the first battery module 17; by making the battery module 14 located in the lower layer of the first battery module 17 located below the two longitudinal beams 41, interference between the battery module 10 and other components can be avoided.
[0056] According to some embodiments of the present utility model, referring to Figure 3 , the battery module 10 located between the two longitudinal beams 41 is the first battery module 17. The height dimension of the longitudinal beam 41 in the up and down direction is h1, and the distance between the lower surface of the longitudinal beam 41 and the upper surface of the first battery module 17 in the up and down direction is h2. The ratio range of h2 to h1 is 0.5 to 0.9. For example, the ratio of h2 to h1 can be 0.5, 0.6, 0.7, 0.8, 0.9, etc. By making the ratio of the distance h2 between the lower surface of the longitudinal beam 41 and the upper surface of the first battery module 17 in the up and down direction to the height dimension h1 of the longitudinal beam 41 in the up and down direction not less than 0.5, the first battery module 17 can make full use of the space defined by the two longitudinal beams 41, increasing the space utilization rate of the battery module 10; by making the ratio of the distance h2 between the lower surface of the longitudinal beam 41 and the upper surface of the first battery module 17 in the up and down direction to the height dimension h1 of the longitudinal beam 41 in the up and down direction not greater than 0.9, it can be avoided that the first battery module 17 interferes with other components and affects the arrangement of other components.
[0057] According to some embodiments of the present utility model, referring to Figure 3 , the battery module 10 located between the two longitudinal beams 41 is the first battery module 17. The minimum distance between the first battery module 17 and the longitudinal beam 41 in the second direction is a, and a is greater than 25 mm. For example, the value of a can be 26 mm, 27 mm, 30 mm, etc. By making the minimum distance a between the first battery module 17 and the longitudinal beam 41 in the second direction greater than 25 mm, more installation space can be provided for the first battery module 17, avoiding interference between the first battery module 17 and the longitudinal beam 41 when installing the first battery module 17.
[0058] Optionally, the minimum distance between the first battery module 17 and the longitudinal beam 41 in the second direction is a, and the width of each longitudinal beam 41 in the second direction is b, and a ≤ b. By making the minimum distance a between the first battery module 17 and the longitudinal beam 41 in the second direction ≤ the width b of the flanging of the large beam, excessive space waste can be avoided, enabling the first battery module 17 to make full use of the space between the two longitudinal beams 41 and improving the space utilization rate of the first battery module 17.
[0059] According to some embodiments of the present utility model, referring to Figure 2, the battery module 10 located between the two longitudinal beams 41 is the first battery module 17. The vehicle beam 40 includes a cross beam 42 connected between the two longitudinal beams 41. A second avoidance groove 12 for avoiding the cross beam 42 is formed on the first battery module 17. By providing the second avoidance groove 12 for avoiding the cross beam 42 on the first battery module 17 and accommodating the cross beam 42 in the second avoidance groove 12, interference between the first battery module 17 and the cross beam 42 can be avoided, enabling the first battery module 17 to be successfully installed and fixed on the vehicle beam 40.
[0060] According to some embodiments of the present invention, referring to Figure 2 , the vehicle beam 40 further includes a connecting bracket 43. The connecting bracket 43 is connected to the opposite sides of the vehicle beam 40 along the second direction. The two battery modules 10 located on the opposite sides of the two longitudinal beams 41 away from each other are the second battery module 18 and the third battery module 19 respectively. By providing the connecting brackets 43 on the opposite sides of the vehicle along the second direction, both sides of the second battery module 18 and the third battery module 19 can be fixed, making the connection between the second battery module 18 and the third battery module 19 and the vehicle more stable. For example, the left side of the second battery module 18 is connected to the connecting bracket 43, and the right side of the second battery module 18 is connected to the vehicle beam 40.
[0061] The connecting bracket 43 includes a connecting cross plate 44. The cross plate is connected between the connecting bracket 43 and the longitudinal beam 41. By making the connecting bracket 43 include the connecting cross plate, the connecting bracket 43 can be fixedly connected to the longitudinal beam 41, making the fixation of the connecting bracket 43 more sufficient.
[0062] Third avoidance grooves 13 for avoiding the connecting cross plate 44 are formed on both the second battery module 18 and the third battery module 19. When the battery is installed on the vehicle beam 40, the connecting cross plate 44 is accommodated in the third avoidance grooves 13. By providing the third avoidance grooves 13 on the second battery module 18 and the third battery module 19 for avoiding the connecting cross plate 44, interference between the second battery module 18 and the third battery module 19 and the connecting cross plate can be avoided, enabling the second battery module 18 and the third battery module 19 to be successfully installed on the vehicle beam 40.
[0063] According to some embodiments of the present invention, referring to Figure 2 , the connecting cross plate 44 is located on the opposite sides of the cross beam 42 along the second direction. The third avoidance grooves 13 are located on the opposite sides of the second avoidance groove 12 along the second direction and are communicated with the second avoidance groove 12. By making the third avoidance grooves 13 communicate with the second avoidance groove 12, avoidance grooves exist in the second direction, preventing the connecting cross plate and the cross beam 42 from interfering with the battery module 10.
[0064] According to some embodiments of the present invention, referring toFigure 4 Each battery module 10 includes two sub-battery modules 20 arranged in a first direction. Each sub-battery module 20 includes one or more battery modules 14 arranged in an up-and-down direction. A second avoidance groove 12 or a third avoidance groove 13 is defined between the two sub-battery modules 20 of the battery module 10. When the battery module 10 is installed on the vehicle beam 40, the cross beam 42 is received in the second avoidance groove 12, and the connecting cross plate 44 is received in the third avoidance groove 13. By defining the second avoidance groove 12 or the third avoidance groove 13 between the battery modules 10, the cross beam 42 and the connecting cross plate will not interfere with the battery module 10, ensuring that the battery module 10 can be smoothly installed and fixed.
[0065] According to some embodiments of the present invention, referring to Figure 5 The commercial vehicle battery pack 100 includes: a lower box body 30 and an upper cover 31. The upper cover 31 is disposed on the upper part of the lower box body 30 and defines three installation cavities 32 arranged in a second direction therebetween. The three battery modules 10 are respectively received in the three installation cavities 32. The three installation cavities 32 are jointly defined by the lower box body 30 and the upper cover 31. The three battery modules 10 are respectively received in the three installation cavities 32 and jointly form a large commercial vehicle battery pack 100. By combining multiple battery modules 10 to form a large commercial vehicle battery pack 100, the electrical connection between the battery modules 10 is relatively simple, the use of wire harnesses and connectors can be reduced, the cost can be lowered, and the space occupied by the commercial vehicle battery pack 100 can be reduced; in addition, the connection between the water-cooling structures in the commercial vehicle battery pack 100 is also simpler, reducing the space occupied by the battery.
[0066] According to some embodiments of the present invention, referring to Figure 5 Two middle partition beams 33 extending in a first direction are provided in the lower box body 30. The two middle partition beams 33 are spaced apart in a second direction to divide the space in the lower box body 30 into three installation slots 34 arranged in a second direction. The upper cover 31 includes three sub-upper covers 35 independently formed. The three sub-upper covers 35 respectively correspond to the three installation slots 34. Each sub-upper cover 35 and the inner wall of the installation slot 34 jointly define a single installation cavity 32. By jointly defining a single installation cavity 32 by each sub-upper cover 35 and the inner wall of the installation slot 34, each battery module 10 can be received in a single installation cavity 32, enabling the battery module 10 to be more fully positioned and preventing the battery module 10 from moving in the commercial vehicle battery pack 100 and causing connection failure.
[0067] According to some embodiments of the present invention, the lower box body 30 is an integrally formed part. By integrally forming the lower box body 30, the number of parts of the battery can be reduced, the assembly difficulty can be lowered; and it can make the battery module 10 easier to form a whole.
[0068] According to some embodiments of the present utility model, each sub-upper cover 35 is detachably connected to the lower box body 30. By enabling each sub-upper cover 35 to be detachably connected to the lower box body 30, when the battery module 10 needs to be maintained or repaired, the corresponding sub-upper cover 35 can be removed to replace or repair the corresponding battery module 10, which is more conducive to maintenance.
[0069] A vehicle according to an embodiment of the second aspect of the present utility model includes: a vehicle body and a commercial vehicle battery pack 100 according to an embodiment of the first aspect of the present utility model. The vehicle body includes a vehicle beam 40, and the commercial vehicle battery pack 100 is installed on the vehicle beam 40.
[0070] Among them, the vehicle can be a heavy truck.
[0071] For a vehicle according to an embodiment of the present utility model, by including the commercial vehicle battery pack 100 according to an embodiment of the first aspect of the present utility model, three battery modules 10 are integrated to form a large commercial vehicle battery pack 100, which is convenient to install the entire commercial vehicle battery pack 100 onto the vehicle beam 40 as a whole, and the electrical connection harness and connectors can be simplified. The space utilization rate of the commercial vehicle battery pack 100 is relatively high, and the length of the commercial vehicle battery pack 100 along the extension direction of the longitudinal beam 41 can also be adjusted to adapt to the power requirements of different vehicles.
[0072] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0073] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.
[0074] In the description of the present utility model, the meaning of "a plurality" is two or more.
[0075] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.
[0076] In the description of the present utility model, the first feature being "above", "over" or "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.
[0077] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0078] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A commercial vehicle battery pack, characterized in that, A vehicle beam suitable for installation on a vehicle, the vehicle beam includes two longitudinal beams extending in a first direction, the two longitudinal beams are arranged at intervals in a second direction, the second direction, the first direction, and the up-down direction are perpendicular to each other in pairs, the commercial vehicle battery pack includes three battery modules arranged in the second direction, one of the battery modules is suitable for being located between the two longitudinal beams, and the other two battery modules are suitable for being located on the opposite sides of the two longitudinal beams respectively, a first avoidance groove for avoiding the longitudinal beam is defined between two adjacent battery modules, each battery module includes one or more layers of battery modules arranged in the up-down direction, the battery module includes one or more groups of multiple battery packs arranged in the second direction, and each battery pack includes multiple battery cells arranged in the first direction.
2. The commercial vehicle battery pack according to claim 1, wherein, In the second direction, the outer sides of the two longitudinal beams facing away from each other are the outer longitudinal beam sides, the distance between the outer longitudinal beam sides of the two longitudinal beams in the second direction is y, the width of each longitudinal beam in the second direction is b, the width of each battery pack in the second direction is c, the battery module located between the two longitudinal beams is the first battery module, and each layer of the battery module of the first battery module includes N groups of the battery packs arranged in the second direction, N≥1 and is a positive integer; Wherein, y, b, c, and N satisfy: y - 2b - N * 1.05c ≥ 50, where the units of y, b, and c are all mm.
3. The commercial vehicle battery pack according to claim 1, wherein Each battery module includes two layers of battery modules arranged in the up-down direction.
4. The commercial vehicle battery pack according to claim 3, wherein, The battery module located between the two longitudinal beams is the first battery module, at least part of the battery module located in the upper layer of the first battery module is located in the accommodation space defined by the two longitudinal beams, and the battery module located in the lower layer of the first battery module is located below the two longitudinal beams.
5. The commercial vehicle battery pack according to claim 1, characterized in that, The battery module located between the two longitudinal beams is the first battery module, the height dimension of the longitudinal beam in the up-down direction is h1, the distance between the lower surface of the longitudinal beam and the upper surface of the first battery module in the up-down direction is h2, and the ratio range of h2 to h1 is 0.5 - 0.9 and / or, the battery module located between the two longitudinal beams is the first battery module, and the minimum distance between the first battery module and the longitudinal beam in the second direction is greater than 25mm.
6. The commercial vehicle battery pack according to claim 1, wherein The battery module located between the two longitudinal beams is the first battery module, the vehicle beam includes a cross beam connected between the two longitudinal beams, and a second avoidance groove for avoiding the cross beam is formed on the first battery module.
7. The commercial vehicle battery pack according to claim 6, characterized in that, The vehicle beam further includes a connection bracket, the connection bracket is connected to the opposite sides of the vehicle beam in the second direction, the connection bracket includes a connection cross plate, the two battery modules located on the opposite sides of the two longitudinal beams are the second battery module and the third battery module respectively, and third avoidance grooves for avoiding the connection cross plate are formed on both the second battery module and the third battery module.
8. The commercial vehicle battery pack according to claim 7, characterized in that, The connecting cross plate is located on opposite sides of the cross beam along the second direction, and the third avoidance groove is located on opposite sides of the second avoidance groove along the second direction and communicates with the second avoidance groove.
9. The commercial vehicle battery pack according to claim 8, characterized in that, Each battery module includes two sub-battery modules arranged along the first direction, and each sub-battery module includes one or more battery modules arranged along the up-down direction. The second avoidance groove or the third avoidance groove is defined between the two sub-battery modules of the battery module.
10. The commercial vehicle battery pack according to claim 1, characterized in that, The commercial vehicle battery pack includes: A lower box body; An upper cover, which is disposed on the upper part of the lower box body and defines three installation cavities arranged along the second direction between the upper cover and the lower box body. The three battery modules are respectively accommodated in the three installation cavities; Wherein, two middle partition beams extending along the first direction are provided in the lower box body, and the two middle partition beams are arranged at intervals along the second direction to divide the space in the lower box body into three installation slots arranged along the second direction. The upper cover includes three sub-upper covers independently formed respectively, and the three sub-upper covers correspond to the three installation slots respectively. Each sub-upper cover and the inner wall of the installation slot jointly define a single installation cavity.
11. The commercial vehicle battery pack according to claim 10, wherein, The lower box body is an integrally formed part; and / or each sub-upper cover is detachably connected to the lower box body.
12. A vehicle, characterized in that, Including: A vehicle body, including the vehicle beam; The commercial vehicle battery pack according to any one of claims 1-11.