Flexible assembly structure adaptive to multi-specification battery packs and vehicle

Abstract

The utility model discloses a flexible assembly structure adaptive to multi-specification battery packs and a vehicle, and relates to the technical field of new energy automobiles. The flexible assembly structure comprises an assembly frame, the assembly frame comprises a first assembly unit and a second assembly unit, the first assembly unit and the second assembly unit respectively comprise beam rods with different lengths, and when the first assembly unit selects a first beam rod with a certain length, the second assembly unit corresponds to a second beam rod with a matched length so as to assemble a battery pack; and when the first assembling unit selects to install the first beam rod with the other length, the second assembling unit correspondingly installs the other second beam rod with the adaptive length so as to assemble the other battery pack. According to the embodiment of the invention, the flexible assembly structure can adapt to battery packs of various different specifications.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a flexible assembly structure and a vehicle adapted to battery packs of multiple specifications. Background Art

[0002] At present, some new energy heavy-duty commercial trucks on the market adopt a bottom-mounted battery pack assembly structure to cope with their huge power demand and harsh working environment. However, this assembly structure is generally made for a specific type of battery pack, and has poor versatility. Users cannot adapt battery packs of different sizes according to different needs of long and short trips.

[0003] Therefore, there is room for improvement in the battery packaging structure. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one aspect of the utility model aims to provide a flexible assembly structure adapted to battery packs of multiple specifications, wherein the flexible assembly structure can be adapted to battery packs of multiple different specifications.

[0005] Another object of the present invention is to provide a vehicle.

[0006] According to the flexible assembly structure adapted to battery packs of multiple specifications according to the first aspect of the embodiment of the utility model, the battery pack is detachably installed on a vehicle, the assembly structure comprises: an assembly frame, the assembly frame has a first direction consistent with the extension direction of the chassis beam, and a second direction perpendicular to the first direction, the assembly frame comprises: a first assembly unit and a second assembly unit, the first assembly unit comprises: a first crossbeam for connecting between two of the chassis beams, a first longitudinal beam connected between two adjacent first crossbeams, the first crossbeam extending along the second direction and being at least two beams arranged at intervals along the first direction, two adjacent first crossbeams and the two chassis beams enclose a rectangular frame, the second assembly unit is suitable for being installed on the side of the chassis beam away from the first assembly unit, the second assembly unit comprises: a second crossbeam and a second longitudinal beam, the second crossbeam extending along the second direction and one end of which is suitable for connecting to the chassis beam chassis beam, at least two second cross beams are arranged at intervals along the first direction, a second longitudinal beam is arranged between every two adjacent second cross beams, and the second longitudinal beam is connected to the chassis beam; the assembly frame is suitable for being detachably connected to the chassis beam; the first longitudinal beam includes at least two first beams with the same cross-sectional shape but different lengths, and the second longitudinal beam includes at least two second beams with the same cross-sectional shape but different lengths; the first assembly unit can selectively install one of the first beams with a length, and the second assembly unit can selectively install one of the second beams with a length; when the first assembly unit chooses to install one length of the first beam, the second assembly unit correspondingly installs one of the second beams with an adapted length to assemble one type of battery pack; when the first assembly unit chooses to install another length of the first beam, the second assembly unit correspondingly installs another of the second beams with an adapted length to assemble another type of battery pack.

[0007] According to the flexible assembly structure adapted to battery packs of multiple specifications in the embodiment of the utility model, the battery pack can be installed by using the first assembly unit and the second assembly unit, and the battery pack can be fixed to the chassis beam through the assembly structure. Moreover, the two second assembly units are symmetrically arranged on both sides of the first assembly unit, which is beneficial to uniformly disperse the fixed position of the battery pack relative to the chassis beam, and is beneficial to force balance, thereby facilitating improving the driving stability of the vehicle.

[0008] By detachably connecting the assembly structure to the chassis beam, the assembly structure can be adaptively adjusted according to the number of battery packs required by the vehicle. When the battery pack is not needed, the assembly structure can be directly removed, and when the battery pack is needed, the number of assembly structures installed can be adjusted according to the number of battery packs.

[0009] The first longitudinal beam on each assembly structure has at least two optional length specifications, and the second longitudinal beam also has at least two optional length specifications. By replacing and matching the first longitudinal beam and the second longitudinal beam, a single assembly structure can match at least two length specifications and can install at least two specifications of battery packs, thereby realizing flexible installation of the battery pack.

[0010] According to some embodiments of the utility model, the flexible assembly structure adapted to battery packs of multiple specifications also includes an adapter frame, which includes: a first fixing member and a second fixing member, the first fixing member is installed on at least one of the first longitudinal beam and the second longitudinal beam, and is used for being fastened to the battery pack, and the second fixing member is installed on the second cross beam and is used for being fastened to the battery pack, so that the battery pack overlaps the first cross beam without a fixed connection.

[0011] In some optional embodiments, when the first fixing member is provided on the first longitudinal beam, the first fixing member is a plurality of the first fixing members arranged at intervals along the length direction of the first longitudinal beam, and the spacing of the first fixing members on each of the first beam rods of the first longitudinal beam is equal; when the first fixing member is provided on the second longitudinal beam, the first fixing member is a plurality of the first fixing members arranged at intervals along the length direction of the second longitudinal beam, and the spacing of the first fixing members on each of the second beam rods of the second longitudinal beam is equal.

[0012] In some optional embodiments, there is at least one first assembly unit, each of which is individually detachable, and two adjacent first cross beams and two first longitudinal beams or second longitudinal beams arranged on the chassis beam form a first accommodating cavity for installing a fixed block of a battery pack; there are at least two second assembly units and they are arranged in pairs, and the two second assembly units in the same pair are respectively located on opposite sides of the first assembly unit, and each pair of second assembly units is individually detachable, and the second assembly unit also includes an outer side beam, which is connected to the end of the second cross beam away from the chassis beam, and a second accommodating cavity for installing a fixed block of a battery pack is formed between every two second cross beams, the first longitudinal beam or the second longitudinal beam arranged on the chassis beam, and the outer side beams; the first fixing member is arranged on the first longitudinal beam or the second longitudinal beam connected to the chassis beam.

[0013] In some optional embodiments, there are two first assembly units arranged along the first direction, and there are four second assembly units, and the second assembly units are arranged in pairs along opposite sides of the first assembly unit, and the two second assembly units located on the same side of the first assembly unit are respectively arranged along the first direction, and the second assembly unit also includes an outer side beam, which is connected to the end of the second cross beam away from the chassis beam, and a second accommodating cavity for installing a fixed block for installing a battery pack is formed between every two second cross beams, two first longitudinal beams or second longitudinal beams arranged on the chassis beam, and the outer side beams.

[0014] In some optional embodiments, positioning portions for positioning the battery pack are respectively provided on the first cross beams on both sides, and the two positioning portions are centrally symmetrically arranged relative to the symmetry lines of the two chassis beams.

[0015] In some optional embodiments, the positioning portion includes a square positioning column, a circular positioning hole is formed at the center of the square positioning column, and the positioning portion is integrally formed on the first crossbeam.

[0016] According to the flexible assembly structure adapted to battery packs of various specifications in some embodiments of the present invention, the first cross beam, the first longitudinal beam, the second cross beam, and the second longitudinal beam are all castings.

[0017] The vehicle according to the second embodiment of the utility model comprises: a vehicle body, two chassis beams and a flexible assembly structure adapted to multiple specifications of battery packs, wherein the chassis beam is connected to the bottom of the vehicle body; and the flexible assembly structure is mounted on the chassis beam. The assembly mechanism of the battery pack is the flexible assembly structure adapted to multiple specifications of battery packs described in the first embodiment of the present application.

[0018] According to the vehicle of the second embodiment of the utility model, a flexible assembly structure adapted to battery packs of multiple specifications is provided, so that battery packs of multiple specifications can be installed, thereby improving the adaptability of the vehicle.

[0019] In some embodiments, the flexible assembly structure adapted to battery packs of various specifications is connected to the chassis beam via floating nuts.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1It is a schematic diagram of some assembly structures in some embodiments of the utility model;

[0023] Figure 2 It is a schematic diagram of other assembly structures in some embodiments of the utility model;

[0024] Figure 3 It is a stereogram of some assembly structures in some embodiments of the utility model;

[0025] Figure 4 It is a stereogram of other assembly structures in some embodiments of the utility model;

[0026] Figure 5 It is a stereoscopic diagram of some assembly structures in some embodiments of the utility model.

[0027] Reference numerals:

[0028] Flexible assembly structure 100,

[0029] Assembly frame 1.

[0030] The first assembly unit 10, the first accommodating cavity 11, the first cross beam 12, the positioning portion 121, the first beam 13, the first longitudinal beam 14,

[0031] The second assembly unit 20, the second accommodating cavity 21, the second cross beam 22, the second beam rod 23, the second longitudinal beam 24, the outer side beam 25,

[0032] The adapter frame 3 , the first fixing member 31 , and the second fixing member 32 . DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "up", "down", "front", "back", "left", "right", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Reference below Figure 1-Figure 5 A flexible assembly structure 100 adapted to battery packs of various specifications according to an embodiment of the present invention is described, and is used to detachably install the battery pack on a vehicle.

[0037] It is worth mentioning that the so-called flexibility here means that a single assembly structure can adapt to battery packs of at least two length specifications. At the same time, the battery pack can be installed or not installed along the length direction of the chassis beam, and the number of battery packs can be adjusted as needed.

[0038] like Figure 1-Figure 2 As shown, the flexible assembly structure 100 according to some embodiments of the first aspect of the utility model includes: an assembly frame 1. The assembly frame 1 is connected to the chassis beam of the vehicle, and its main function is to provide a stable and safe installation position for the battery pack. Through the firm connection with the chassis beam, the assembly frame 1 ensures the stability of the battery pack during the driving process of the vehicle.

[0039] The assembly frame 1 includes a first direction and a second direction. Figure 1 As shown, the first direction is the extension direction of the chassis beam, and the second direction is perpendicular to the first direction.

[0040] The assembly frame 1 includes: a first assembly unit 10 and a second assembly unit 20. It is worth noting that each battery pack has a plurality of raised fixing blocks, which not only play a role in positioning and supporting, but also ensure that the battery pack is stably installed on the assembly frame 1. These fixing blocks are usually integrally formed with the outer shell of the battery pack to ensure stability and safety under a variety of extreme working conditions. Specifically, during the assembly process, the fixing blocks on the battery pack will cooperate with the first assembly unit 10 and / or the second assembly unit 20 of the assembly frame 1, so that the fixing blocks can be accurately embedded therein to achieve preliminary positioning and fixation, and then the fixing blocks are further connected to the assembly frame 1 through the adapter frame 3 to ensure the stability and safety of the battery pack during driving.

[0041] The first assembly unit 10 includes: a first cross beam 12 for connecting between two chassis beams, and a first longitudinal beam 14 connected between two adjacent first cross beams 12. The first cross beams 12 are extended along the second direction and are at least two first cross beams 12 arranged at intervals along the first direction. A rectangular frame is formed between the two adjacent first cross beams 12 and the two chassis beams.

[0042] The first assembly unit 10 is suitable for installation between two chassis beams of the vehicle, and the second assembly unit 20 is suitable for installation on the side of the chassis beam away from the first assembly unit 10. By setting it in this way, the first assembly unit 10 can be used to connect the battery pack fixing block and enhance the connection stability between the two chassis beams. At the same time, the second assembly unit 20 can obtain more stable support during installation, thereby ensuring the reliability and safety of its connection.

[0043] The first crossbeam 12 is connected between the two chassis beams. Its function is not only to achieve an effective connection between the two chassis beams, but also to balance the weight of the second assembly units 20 on both sides. In addition, since the second assembly units 20 are on both sides of the first assembly unit 10, the weight they bear may affect the balance of the chassis. The first crossbeam 12 can balance this weight distribution. It connects the two chassis beams to form a strong support structure, ensuring that the weight of the second assembly unit 20 can be evenly distributed on the two chassis beams, and effectively avoiding the uneven weight distribution at both ends of the vehicle. In this way, it is possible to prevent local damage to the flexible assembly structure 100 caused by excessive force on one end, thereby ensuring the stability and safety of the vehicle during driving.

[0044] A first longitudinal beam 14 is arranged between every two adjacent first cross beams 12. These first longitudinal beams 14 can enhance the strength of the chassis beam. They effectively disperse the force applied to the vehicle during driving, thereby reducing the stress burden on the chassis beam. Under complex road conditions, the first longitudinal beam 14 can significantly reduce the risk of the chassis beam being twisted, thereby ensuring the stability and safety of the vehicle.

[0045] A rectangular frame is formed between two adjacent first cross beams 12 and the two chassis beams. This rectangular frame provides a stable accommodating cavity for the battery pack fixing block. This accommodating cavity not only ensures the stability of the battery pack fixing block during vehicle driving, but also provides good protection for the battery pack. Through the constraint of the rectangular frame, the battery pack fixing block can fit more closely on the chassis, thereby further improving the installation stability and safety of the battery pack.

[0046] The second assembly unit 20 includes: a second cross beam 22 and a second longitudinal beam 24. The second cross beam 22 is extended along the second direction and one end of which is suitable for connecting to the chassis beam. At least two second cross beams 22 are arranged at intervals along the first direction, and a second longitudinal beam 24 is arranged between every two adjacent second cross beams 22. The second longitudinal beam 24 is connected to the chassis beam.

[0047] The plurality of second cross beams 22 and second longitudinal beams 24 form a frame structure, which not only provides a stable connection for the battery pack, but also can resist impact and vibration, thereby improving the safety of the battery pack.

[0048] Meanwhile, multiple second beams 22 are provided to avoid the risk of overall structural damage caused by damage to a single second beam 22. In actual use, even if a second beam 22 is damaged for various reasons, the other second beams 22 can still maintain structural integrity, thereby ensuring the normal operation of the vehicle.

[0049] The assembly frame 1 is suitable for being detachably connected to the chassis beam. By providing the detachable assembly frame 1, it can be adapted to battery packs of different models, achieving a combination of flexibility and versatility.

[0050] The first longitudinal beam 14 includes at least two first beams 13 of the same cross-sectional shape but different lengths, and the second longitudinal beam 24 includes at least two second beams 23 of the same cross-sectional shape but different lengths. The first assembly unit 10 can selectively install one length of the first beam 13, and the second assembly unit 20 can selectively install one length of the second beam 23. When the first assembly unit 10 chooses to install a first beam 13 of one length, the second assembly unit 20 correspondingly installs a second beam 23 of an adaptive length to assemble a battery pack. When the first assembly unit 10 chooses to install a first beam 13 of another length, the second assembly unit 20 correspondingly installs another second beam 23 of an adaptive length to assemble another battery pack.

[0051] The connection of the battery pack in the first direction can be achieved by providing the first beam 13 and the second beam 23 .

[0052] According to the flexible assembly structure 100 adapted to battery packs of various specifications according to the embodiment of the utility model, the battery pack can be installed by using the first assembly unit 10 and the second assembly unit 20, and the battery pack is fixed to the chassis beam through the flexible assembly structure 100, and the two second assembly units 20 are symmetrically arranged on both sides of the first assembly unit 10, which is beneficial to uniformly disperse the fixed position of the battery pack relative to the chassis beam, and is beneficial to force balance, thereby facilitating improving the driving stability of the vehicle.

[0053] By detachably connecting the flexible assembly structure 100 to the chassis beam, the flexible assembly structure 100 can be adaptively adjusted according to the number of battery packs required by the vehicle. When the battery pack is not needed, the flexible assembly structure 100 can be directly removed, and when the battery pack is needed, the number of flexible assembly structures 100 installed can be adjusted according to the number of battery packs.

[0054] The first longitudinal beam 13 on each flexible assembly structure 100 has at least two optional length specifications, and the second longitudinal beam 14 also has at least two optional length specifications. By replacing and matching the first longitudinal beam 13 and the second longitudinal beam 14, a single flexible assembly structure 100 can match at least two length specifications and can install battery packs of at least two specifications, thereby realizing flexible installation of the battery pack.

[0055] In some optional embodiments, the first beam 13 and the second beam 23 have different lengths. This allows the assembly frame 1 to be adjusted according to different types of battery packs. This modular design makes the assembly process simpler and faster, while reducing manufacturing costs.

[0056] In some embodiments, Figure 1-Figure 5 As shown, the flexible assembly structure 100 also includes an adapter frame 3. The adapter frame 3 includes: a first fixing member 31 and a second fixing member 32. The first fixing member 31 is installed on at least one of the first longitudinal beam 14 and the second longitudinal beam 24, and is used to be fastened to the battery pack. The first fixing member 31 is used to achieve the connection between the battery pack and the assembly frame 1 in the first direction.

[0057] The second fixing member 32 is mounted on the second cross beam 22 and is used to be fastened to the battery pack, so that the battery pack overlaps the first cross beam 12 without being fixedly connected. The second fixing member 32 is used to achieve the connection between the battery pack and the assembly frame 1 in the second direction. The first cross beam 12 and the battery pack are overlapped, so that a certain gap is maintained between the two, so that the battery pack has a certain buffer space when it is subjected to vibration or impact, thereby improving the safety of the battery pack.

[0058] For example, the fixed block in the middle of the battery pack is set in the first assembly unit 10 in the middle of the assembly frame 1, and the connection point is located on the first longitudinal beam 14, so that the gravity can be concentrated and transferred to the chassis beam. The fixed blocks at both ends of the battery pack are set in the two second assembly units 20 on both sides, and the corresponding connection points are located on the second cross beam 22, so that the gravity can be dispersed and transferred to the second assembly units 20, and finally the load is realized through the chassis beam.

[0059] In some optional embodiments, such as Figure 3As shown, when the first longitudinal beam 14 is provided with a first fixing member 31, the first fixing members 31 are arranged in a plurality along the length direction of the first longitudinal beam 14, and the spacing between the first fixing members 31 on each first beam rod 13 of the first longitudinal beam 14 is equal. When the second longitudinal beam 24 is provided with a first fixing member 31, the first fixing members 31 are arranged in a plurality along the length direction of the second longitudinal beam 24, and the spacing between the first fixing members 31 on each second beam rod 23 of the second longitudinal beam 24 is equal.

[0060] The first fixing member 31 is used to fix and support the battery pack, and also provides a basis for connecting the first beam 13 and the second beam 23 of different lengths.

[0061] Since the first fixing members 31 are arranged in a plurality of intervals along the length direction of the first longitudinal beam 14 and the second longitudinal beam 24, the assembly frame 1 can adapt to battery packs of different lengths by selecting different numbers of first fixing members 31 to connect the battery packs. This fine-tuning capability enables the assembly frame 1 to flexibly adapt to various types of battery packs without replacing the entire assembly frame 1.

[0062] In addition, the equal spacing of the first fixing members 31 enables the assembly frame 1 to have better uniform stress performance when bearing the weight and vibration of the battery pack, which helps to reduce the risk of deformation or damage of the assembly frame 1 due to uneven stress, and improves the reliability and durability of the assembly frame 1.

[0063] At the same time, the assembly frame 1 is more convenient in the process of replacing the battery pack. When the battery pack needs to be replaced, it is only necessary to loosen the first fixing member 31 and replace the beam rod of the corresponding length, and then reinstall it on the assembly frame 1. This operation method is simple and reduces the replacement cost and time cost.

[0064] In some optional embodiments, such as Figure 3-Figure 5 As shown, there is at least one first assembly unit 10, and each first assembly unit 10 is individually detachable. Two adjacent first cross beams 12 and two first longitudinal beams 14 or second longitudinal beams 24 arranged on the chassis beam form a first accommodating cavity 11 for installing a fixed block of a battery pack. There are at least two second assembly units 20 arranged in pairs, and the two second assembly units 20 of the same pair are respectively located on opposite sides of the first assembly unit 10. Each pair of second assembly units 20 is individually detachable. The second assembly unit 20 also includes an outer side beam 25, which is connected to the end of the second cross beam 22 away from the chassis beam. A second accommodating cavity 21 for installing a fixed block of a battery pack is formed between every two second cross beams 22, the first longitudinal beam 14 or the second longitudinal beam 24 arranged on the chassis beam, and the outer side beam 25; the first fixing member 31 is arranged on the first longitudinal beam 14 or the second longitudinal beam 24 connected to the chassis beam.

[0065] There is at least one first assembly unit 10, and each unit is individually detachable, which means that it can be removed or replaced when necessary. They are located on the chassis beam and together with the two adjacent first cross beams 12 form a first accommodating cavity 11 for mounting the fixed block of the battery pack. This accommodating cavity provides stable support and positioning for the battery pack.

[0066] The second assembly units 20 are arranged in pairs, with each pair of units being located on opposite sides of the first assembly unit 10. This arrangement helps to provide symmetrical support and stability.

[0067] Each pair of second assembly units 20 is also independently detachable, which increases assembly flexibility and maintenance convenience.

[0068] Each pair of second assembly units 20 comprises an outer side beam 25, which is connected to an end of the second cross beam 22 away from the chassis beam. The outer side beam 25 not only provides additional structural strength, but also may be used as an energy absorbing structure during a collision.

[0069] The space formed by the two second cross beams 22, the first longitudinal beam 14 or the second longitudinal beam 24 arranged on the chassis beam, and the outer side beam 25 together constitutes the second accommodating cavity 21 for installing the fixing block of the battery pack. The second accommodating cavity 21 cooperates with the first accommodating cavity 11 to provide comprehensive support for the battery pack.

[0070] The first fixing member 31 is arranged on the first longitudinal beam 14 or the second longitudinal beam 24 connected to the chassis beam. These first fixing members 31 are bolts, buckles or other fasteners, which are used to fix the fixing block of the battery pack.

[0071] In some optional embodiments, such as Figure 3-Figure 4 As shown, there are two first assembly units 10 arranged along the first direction, and there are four second assembly units 20. The second assembly units 20 are arranged in pairs along the opposite sides of the first assembly unit 10, and the two second assembly units 20 located on the same side of the first assembly unit 10 are arranged along the first direction respectively. The second assembly unit 20 also includes an outer side beam 25, and the outer side beam 25 is connected to the end of the second cross beam 22 away from the chassis beam. A second accommodating cavity 21 for installing a fixed block for installing a battery pack is formed between every two second cross beams 22, two first longitudinal beams 14 or second longitudinal beams 24 arranged on the chassis beam, and the outer side beams 25.

[0072] It is worth noting that different numbers of fixing blocks may be formed on the battery packs due to different battery pack models. For example, in the flexible assembly structure 100 of this embodiment, the first assembly units 10 are arranged along the first direction, with a total of two. This arrangement ensures that the two fixing blocks of the battery pack in the longitudinal direction are evenly supported.

[0073] There are four second assembly units 20 in total, which are arranged in pairs along opposite sides of the first assembly unit 10. Such a layout enables the battery pack to be stably supported in the lateral direction.

[0074] The two second assembly units 20 located on the same side of the first assembly unit 10 are also arranged along the first direction, which further enhances the stability of the battery pack in the first direction.

[0075] Each second assembly unit 20 includes an outer side beam 25, which is connected to the end of the second cross beam 22 away from the chassis beam. The outer side beam 25 provides additional support for the battery pack and can serve as an energy absorbing structure in the event of a collision to reduce the impact on the battery pack.

[0076] Every two second cross beams 22, the two first longitudinal beams 14 or the second longitudinal beams 24 arranged on the chassis beam, and the outer beams 25 form a second accommodating cavity 21 for mounting a fixed block of the battery pack. This design ensures that the battery pack has enough space in the assembly frame 1 and can be installed firmly. At the same time, this unclosed assembly frame 1 allows the heat generated by the battery pack to be transferred to the outside through the gaps between the beams, which helps to achieve the heat dissipation function.

[0077] In some optional embodiments, the first cross beams 12 on both sides are respectively provided with positioning portions 121 for positioning the battery pack, and the two positioning portions 121 are centrally symmetrically arranged relative to the symmetry lines of the two chassis beams. The function of these positioning portions 121 is to accurately position the battery pack to ensure that its position is accurate during the assembly process. By improving the assembly accuracy, the battery pack is prevented from shifting or tilting during the assembly process, thereby ensuring the safety of the battery pack.

[0078] In some optional embodiments, the positioning portion 121 includes a square positioning column, a circular positioning hole is formed at the center of the square positioning column, and the positioning portion 121 is integrally formed on the first beam 12 .

[0079] The square positioning column makes the connection between the positioning portion 121 and the flexible assembly structure 100 more stable.

[0080] The circular positioning holes can form an accurate match with the corresponding parts on the battery pack, making the positioning process quick and accurate, thus reducing the assembly time and the possible errors in the assembly process.

[0081] The positioning portion 121 is formed on the first cross beam 12 to ensure accurate pre-positioning of the battery pack in the first direction, which is beneficial for subsequent installation.

[0082] According to the flexible assembly structure 100 of the battery pack in some embodiments of the present invention, the first cross beam 12 , the first longitudinal beam 14 , the second cross beam 22 , and the second longitudinal beam 24 are all castings.

[0083] This is because the internal structure of the casting is dense, without defects such as pores and slag inclusions, so it has high strength and rigidity. In the flexible assembly structure 100 of the battery pack, the first crossbeam 12, the first longitudinal beam 14, the second crossbeam 22 and the second longitudinal beam 24 are key supporting and connecting components that need to withstand various forces and vibrations from the battery pack and the vehicle. The use of castings can ensure that these components have sufficient rigidity and strength to cope with various complex working environments.

[0084] In addition, castings have higher production efficiency and can reduce the time cost of production.

[0085] The vehicle according to the second embodiment of the utility model comprises: a vehicle body, two chassis beams and a flexible assembly structure 100, wherein the chassis beam is connected to the bottom of the vehicle body. The flexible assembly structure 100 is mounted on the chassis beam. The flexible assembly structure is the flexible assembly structure 100 adapted to multiple specifications of battery packs in the first embodiment of the present application.

[0086] The vehicle of the embodiment of the utility model can improve the adaptability of the vehicle through the flexible assembly structure 100.

[0087] In some embodiments, the flexible assembly structure 100 is connected to the chassis beam via floating nuts.

[0088] Below, refer to the attached Figure 1 , Figure 3 , describes a flexible assembly structure 100 according to a specific embodiment of the present application. This flexible assembly structure 100 is used to detachably mount a battery pack on a vehicle,

[0089] Reference Figure 1 The flexible assembly structure 100 of the battery pack includes: an assembly frame 1 and an adapter frame 3.

[0090] The assembly frame 1 has a first direction which is consistent with the extending direction of the chassis beam and a second direction which is perpendicular to the first direction.

[0091] The assembly frame 1 is suitable for being detachably connected to the chassis beam. The assembly frame 1 comprises: a first assembly unit 10 and a second assembly unit 20. The second assembly unit 20 is suitable for being installed on a side of the chassis beam away from the first assembly unit 10.

[0092] The first assembly unit 10 is one and can be disassembled separately, and includes: a first cross beam 12 for connecting between two chassis beams, and a first longitudinal beam 14 connected between two adjacent first cross beams 12. The first accommodating cavity 11 for installing the fixing block of the battery pack is formed by two adjacent first cross beams 12 and two first longitudinal beams 14 arranged on the chassis beam.

[0093] The first longitudinal beam 14 includes at least two first beams 13 having the same cross-sectional shape but different lengths.

[0094] The first cross beams 12 are extended along the second direction and are at least two cross beams arranged at intervals along the first direction. Two adjacent first cross beams 12 and the two chassis beams form a rectangular frame.

[0095] There are two second assembly units 20 arranged in pairs, and the two second assembly units 20 in the same pair are respectively located on two opposite sides of the first assembly unit 10 , and each pair of second assembly units 20 can be independently assembled and disassembled.

[0096] The second assembly unit 20 includes a second cross beam 22 , a second longitudinal beam 24 and an outer edge beam 25 .

[0097] The second cross beam 22 is extended along the second direction and one end is suitable for connecting to the chassis beam. At least two second cross beams 22 are arranged at intervals along the first direction. A second longitudinal beam 24 is arranged between every two adjacent second cross beams 22. The second longitudinal beam 24 is connected to the chassis beam.

[0098] The second longitudinal beam 24 includes at least two second beams 23 having the same cross-sectional shape but different lengths.

[0099] The outer edge beam 25 is connected to an end of the second cross beam 22 away from the chassis beam.

[0100] A second accommodating cavity 21 for mounting a fixing block of the battery pack is formed between every two second cross beams 22 , a second longitudinal beam 24 arranged on the chassis beam, and an outer side beam 25 .

[0101] The first assembly unit 10 may be selectively mounted with a first beam rod 13 of one length, and the second assembly unit 20 may be selectively mounted with a second beam rod 23 of one length.

[0102] When the first assembly unit 10 selects to install a first beam 13 of a certain length, the second assembly unit 20 correspondingly installs a second beam 23 of a matching length to assemble a battery pack.

[0103] When the first assembly unit 10 chooses to install a first beam 13 of another length, the second assembly unit 20 correspondingly installs another second beam 23 of a matching length to assemble another type of battery pack.

[0104] Reference Figure 3 The adapter frame 3 includes: a first fixing member 31 and a second fixing member 32 .

[0105] The first fixing member 31 is mounted on the first longitudinal beam 14 and is used for fastening connection with the battery pack. The second fixing member 32 is mounted on the second cross beam 22 and is used for fastening connection with the battery pack, so that the battery pack overlaps the first cross beam 12 without a fixed connection.

[0106] When the first longitudinal beam 14 is provided with a first fixing member 31 , there are a plurality of first fixing members 31 arranged at intervals along the length direction of the first longitudinal beam 14 , and the first fixing members 31 on each first beam rod 13 of the first longitudinal beam 14 are at equal intervals.

[0107] When the second longitudinal beam 24 is provided with a first fixing member 31 , there are a plurality of first fixing members 31 arranged at intervals along the length direction of the second longitudinal beam 24 , and the first fixing members 31 on each second beam rod 23 of the second longitudinal beam 24 are at equal intervals.

[0108] Positioning portions 121 for positioning the battery pack are respectively provided on the first cross beams 12 on both sides, and the two positioning portions 121 are centrally symmetrically arranged relative to the symmetry lines of the two chassis beams.

[0109] The positioning portion 121 includes a square positioning column, and a circular positioning hole is formed in the center of the square positioning column.

[0110] Other components of the flexible assembly structure 100 of the battery pack according to the embodiment of the present invention, such as a vehicle, are known to those skilled in the art and will not be described in detail here.

[0111] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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 any one or more embodiments or examples in a suitable manner.

[0112] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A flexible assembly structure adapted to multiple specifications of battery packs, used to detachably install the battery pack on a vehicle, characterized in that: The assembly structure comprises: An assembly frame, wherein the assembly frame has a first direction consistent with the extension direction of the chassis beam and a second direction perpendicular to the first direction, and the assembly frame comprises: a first assembly unit and a second assembly unit, wherein the first assembly unit comprises: a first cross beam for connecting between two chassis beams, and a first longitudinal beam connected between two adjacent first cross beams, wherein the first cross beams are extended along the second direction and are at least two beams arranged at intervals along the first direction, and a rectangular frame is formed between two adjacent first cross beams and two chassis beams, and the second assembly unit is suitable for being installed on a side of the chassis beam away from the first assembly unit, and the second assembly unit comprises: a second cross beam and a second longitudinal beam, wherein the second cross beam is extended along the second direction and one end of the second cross beam is suitable for connecting to the chassis beam, wherein at least two second cross beams are arranged at intervals along the first direction, and one second longitudinal beam is arranged between each two adjacent second cross beams, and the second longitudinal beam is connected to the chassis beam; The assembly frame is suitable for being detachably connected to the chassis beam; The first longitudinal beam comprises at least two first beams having the same cross-sectional shape but different lengths, and the second longitudinal beam comprises at least two second beams having the same cross-sectional shape but different lengths; The first assembly unit can be selectively mounted with one of the first beam rods of different lengths, and the second assembly unit can be selectively mounted with one of the second beam rods of different lengths; When the first assembly unit selects to install the first beam of a certain length, the second assembly unit correspondingly installs the second beam of a matching length to assemble a type of the battery pack; When the first assembly unit chooses to install the first beam of another length, the second assembly unit correspondingly installs another second beam of an adapted length to assemble another type of the battery pack.

2. The flexible assembly structure for battery packs of various specifications according to claim 1, characterized in that: It also includes an adapter frame, which includes: a first fixing member and a second fixing member, the first fixing member is installed on at least one of the first longitudinal beam and the second longitudinal beam and is used to be fastened to the battery pack, and the second fixing member is installed on the second cross beam and is used to be fastened to the battery pack, so that the battery pack overlaps the first cross beam without a fixed connection.

3. The flexible assembly structure for battery packs of various specifications according to claim 2, characterized in that: When the first longitudinal beam is provided with the first fixing member, the first fixing members are multiple and spaced apart along the length direction of the first longitudinal beam, and the first fixing members on each of the first beams of the first longitudinal beam are spaced apart from each other at equal intervals; When the second longitudinal beam is provided with the first fixing member, the first fixing members are a plurality of first fixing members arranged at intervals along the length direction of the second longitudinal beam, and the first fixing members on each second beam rod of the second longitudinal beam are spaced at equal intervals.

4. The flexible assembly structure for battery packs of various specifications according to claim 2, characterized in that: There is at least one first assembly unit, each of which is independently detachable, and two adjacent first cross beams, two first longitudinal beams or the second longitudinal beams arranged on the chassis beam form a first accommodating cavity for installing a fixing block of a battery pack; The second assembly units are at least two and are arranged in pairs, and the two second assembly units in the same pair are respectively located on opposite sides of the first assembly unit, and each pair of the second assembly units can be independently disassembled and assembled, and the second assembly unit further comprises an outer side beam, which is connected to an end of the second cross beam away from the chassis beam, and a second accommodating cavity for installing a fixing block of a battery pack is formed between every two second cross beams, the first longitudinal beam or the second longitudinal beam arranged on the chassis beam, and the outer side beams; The first fixing member is arranged on the first longitudinal beam or the second longitudinal beam connected to the chassis beam.

5. The flexible assembly structure adapted to multiple specifications of battery packs according to claim 4, characterized in that: There are two first assembly units arranged along the first direction, and there are four second assembly units. The second assembly units are arranged in pairs along opposite sides of the first assembly unit, and the two second assembly units located on the same side of the first assembly unit are arranged along the first direction respectively. The second assembly unit also includes an outer side beam, which is connected to the end of the second cross beam away from the chassis beam. A second accommodating cavity for installing a fixed block of a battery pack is formed between every two second cross beams, two first longitudinal beams or second longitudinal beams arranged on the chassis beam, and the outer side beams.

6. The flexible assembly structure for battery packs of various specifications according to claim 2, characterized in that: Positioning portions for positioning the battery pack are respectively provided on the first cross beams on both sides, and the two positioning portions are centrally symmetrically arranged relative to the symmetry lines of the two chassis beams.

7. The flexible assembly structure for battery packs of various specifications according to claim 6, characterized in that: The positioning portion comprises a square positioning column, a circular positioning hole is formed at the center of the square positioning column, and the positioning portion is integrally formed on the first crossbeam.

8. The flexible assembly structure for multi-specification battery packs according to any one of claims 1 to 7, characterized in that: The first cross beam, the first longitudinal beam, the second cross beam, and the second longitudinal beam are all castings.

9. A vehicle, characterized in that: include: Car body; two chassis beams, the chassis beams being connected to the bottom of the vehicle body; The flexible assembly structure adapted to battery packs of multiple specifications as described in any one of claims 1 to 8, wherein the flexible assembly structure is installed on the chassis beam.

10. The vehicle according to claim 9, characterized in that The flexible assembly structure adapted to battery packs of various specifications is connected to the chassis beam via floating nuts.

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