Fixed support assembly, battery system, vehicle, stacking method and system, and storage medium

Abstract

The present application discloses a fixed support assembly, a battery system, a vehicle, a stacking method and system, and a storage medium, which relate to the technical field of new energy and are designed to improve the stability of the battery system of an engineering vehicle. The fixed support assembly comprises a bottom support member (1), an enclosure assembly (2'), and a reinforcing assembly (4). The fixed support assembly is configured to fix a battery system in place. The enclosure assembly (2') is fixedly connected to the bottom support member (1); the enclosure assembly (2') comprises a mounting cavity (20'); and the reinforcing assembly (4) is supported by the enclosure assembly (2'). The battery system comprises at least three layers of battery packs (5), wherein two layers of battery packs (5) located at the top are located outside the enclosure assembly (2') and supported by the enclosure assembly (2'), and the remaining battery packs (5) are mounted inside the mounting cavity (20'); and the reinforcing assembly (4) is detachably fixedly connected to the two layers of battery packs (5) located at the top. The described fixed support assembly meets requirements for ultra-strong protection, heavy-load support, and adaptation to harsh working conditions while also having broad universal applicability and a modular design.

Description

Fixed support components, battery systems, vehicles, stacking methods, systems, and storage media

[0001] Cross-reference to related applications

[0002] This disclosure is based on and claims priority to CN application No. 202511384493.8, filed on September 25, 2025, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure relates to the field of new energy technology, specifically to a fixed support component, a battery system, a vehicle, a stacking method, a system, and a storage medium. Background Technology

[0004] Currently, rapidly developing new energy technologies are dramatically changing people's daily travel habits. The passenger car market is booming, and the electrification of construction machinery is an unstoppable trend. Whether in urban roads, tunnels and bridges, or open-pit mines, the construction process inevitably involves a large number of construction vehicles. However, the concentrated use of large numbers of construction vehicles generates exhaust fumes, causing environmental pollution. The high-frequency noise from the engines also causes significant disturbance to construction workers and nearby residents. Therefore, both domestically and internationally, numerous restrictive policies have been introduced to strictly control the use and emissions of fuel-powered machinery. Against this backdrop, new energy construction vehicles have emerged.

[0005] Currently, new energy engineering vehicles are in their early stages of development, with large-tonnage vehicles having a much higher demand for battery energy than passenger cars and ordinary commercial vehicles. Various large and ultra-large battery systems have become the preferred choice. At the same time, engineering vehicles often operate in extremely harsh environments, with rugged roads, bumpy rides, and sudden braking being commonplace. Therefore, battery systems used in engineering vehicles require a more robust, versatile, and vibration-resistant fixed architecture for support.

[0006] The inventors have discovered that the existing technology has at least the following problems: how to improve the overall fixed support strength and reliability of the battery system, improve the system's protection capability and vibration resistance, and achieve flexible selection of multi-level power, while taking into account the requirements of integration, low cost, and maintainability, has become a problem that the current industry technology development urgently needs to solve. Summary of the Invention

[0007] This disclosure provides a fixed support assembly, battery system, vehicle, stacking method, system, and storage medium to improve the stability of battery systems during installation and use in engineering vehicles.

[0008] This disclosure provides a fixing support assembly configured to fix a battery system, wherein the fixing support assembly includes:

[0009] The bottom support is configured to provide support;

[0010] The fencing assembly is fixedly connected to the bottom support member; the fencing assembly includes a mounting cavity; and

[0011] A reinforcing component, carried by and detachably fixed to the fencing component;

[0012] The battery system includes at least three battery packs, with the top two battery packs located outside the enclosure assembly and supported by the enclosure assembly, and the remaining battery packs installed inside the mounting cavity; the reinforcing assembly is configured to be detachably fixedly connected to the two battery packs located outside the enclosure assembly.

[0013] In some embodiments, the fencing assembly includes a first layer fencing assembly detachably mounted to the bottom support; or...

[0014] The fencing assembly includes a second fencing assembly, which is detachably mounted to the bottom support; or...

[0015] The fencing assembly includes a first layer fencing assembly and a second layer fencing assembly. The first layer fencing assembly is detachably installed on the bottom support member, and the second layer fencing assembly is detachably installed on the top of the first layer fencing assembly. The height of the first layer fencing assembly is greater than the height of the second layer fencing assembly.

[0016] In some embodiments, as described above, the first layer enclosure assembly includes a first mounting cavity for placing two layers of the battery pack, and the second layer enclosure assembly includes a second mounting cavity for placing one layer of the battery pack.

[0017] In some embodiments, the number of second-layer fencing components is at least two, and adjacent second-layer fencing components are fixedly connected in a stacked manner.

[0018] In some embodiments, the first layer of fencing assembly includes:

[0019] A plurality of first enclosure assemblies, the plurality of first enclosure assemblies forming a first mounting cavity with one end open.

[0020] In some embodiments, each of the first enclosure panel assemblies includes:

[0021] The first support plate is detachably and fixedly connected to the bottom support member;

[0022] The second support plate is arranged parallel to and at intervals from the first support plate;

[0023] A first central support plate is installed between the first support plate and the second support plate, and is detachably and fixedly connected to both the first support plate and the second support plate;

[0024] The first support plate is fixedly connected to the first support plate, the second support plate, and the first middle support plate;

[0025] A first reinforcing plate is located outside the first mounting cavity and is fixedly connected to both the first support plate and the first middle support plate; and

[0026] The second reinforcing plate is located outside the first mounting cavity and is fixedly connected to both the second support plate and the first middle support plate.

[0027] In some embodiments, the first support plate is provided with a plurality of first mounting holes; and / or, the second support plate is provided with a plurality of second mounting holes.

[0028] In some embodiments, the first layer of enclosure assembly further includes:

[0029] The first opening frame is installed at the opening of the first mounting cavity.

[0030] In some embodiments, the second layer of fencing assembly includes:

[0031] A plurality of second enclosure assemblies, the plurality of second enclosure assemblies forming a second mounting cavity with one end open.

[0032] In some embodiments, each of the second enclosure assembly includes:

[0033] The third support plate is detachably and fixedly connected to the top of the first layer of fencing assembly or the top of another second layer of fencing assembly;

[0034] The fourth support plate is arranged parallel to and at intervals from the third support plate;

[0035] The second central support plate is installed between the third support plate and the fourth support plate, and is detachably fixedly connected to both the third support plate and the fourth support plate;

[0036] The second supporting plate is fixedly connected to the third supporting plate, the fourth supporting plate, and the second middle supporting plate; and

[0037] The third reinforcing plate is located outside the second mounting cavity and is fixedly connected to both the fourth support plate and the second middle support plate.

[0038] In some embodiments, the third support plate is provided with a plurality of third mounting holes; and / or, the fourth support plate is provided with a plurality of fourth mounting holes.

[0039] In some embodiments, the second layer of fencing assembly further includes:

[0040] The second opening frame is installed at the opening of the second mounting cavity.

[0041] In some embodiments, the reinforcement component includes:

[0042] A first plate, the first plate including a first through hole; the first plate is detachably fixedly connected to the battery box of the battery pack;

[0043] The second plate is fixedly connected to the middle region of the first plate and is arranged perpendicularly to the first plate; the second plate includes a second through hole, and the second plate is detachably fixedly connected to the first layer enclosure assembly or the second layer enclosure assembly; and

[0044] The third plate is detachably and fixedly connected to both the first plate and the second plate, and the third plate is also detachably and fixedly connected to either the first layer of fencing assembly or the second layer of fencing assembly.

[0045] This disclosure also provides a battery system, including:

[0046] Multi-layer battery pack; and

[0047] The fixed support assembly provided by any of the technical solutions in this disclosure has at least one layer of the battery pack installed inside it.

[0048] In some embodiments, the battery pack has three layers, and the fixing support assembly includes a second layer enclosure assembly and a reinforcing assembly, but does not include the first layer enclosure assembly;

[0049] Alternatively, the battery pack has four layers, and the fixed support assembly includes a first layer enclosure assembly and a reinforcing assembly, but does not include a second layer enclosure assembly;

[0050] Alternatively, the battery pack may have five layers, and the fixed support assembly may include a first layer enclosure assembly, a second layer enclosure assembly, and a reinforcing assembly.

[0051] This disclosure also provides an engineering vehicle, including: a fixed support assembly provided by any of the technical solutions of this disclosure; or, a battery system provided by any of the technical solutions of this disclosure.

[0052] This disclosure also provides a battery pack stacking method for a battery system, including the following steps:

[0053] Determine the number of layers of the battery pack to be stacked; the number of layers may be three, four, or five.

[0054] The fixed support assembly is determined according to the number of layers of the battery pack. It can be either a first-layer enclosure assembly or a second-layer enclosure assembly, or both.

[0055] Based on the number of layers in the battery pack, determine the required number of reinforcing components and their installation locations;

[0056] The fixed support assembly is assembled, and at least one layer of the battery pack is installed inside the fixed support assembly.

[0057] In some embodiments, if the battery pack has three layers and the vibration intensity RMS is less than or equal to 2.88g, then the number of the second layer enclosure components is one, the number of the reinforcing components is one, and the reinforcing components are located at the center of the fixed support components along their length.

[0058] In some embodiments, if the battery pack has three layers and the vibration intensity RMS is greater than 2.88g, then the number of the second layer enclosure component is one, the number of the reinforcing components is two, and the two reinforcing components are centrally symmetrically distributed with respect to the length direction of the fixed support component.

[0059] In some embodiments, if the battery pack has four layers and the vibration intensity RMS is less than or equal to 2.88g, then the number of the first layer enclosure components is one; multiple reinforcing components are provided on the outside of the top two battery pack layers; at least two reinforcing components are distributed along the length direction of the fixed support components.

[0060] In some embodiments, if the battery pack has four layers and the vibration intensity RMS is greater than 2.88g, then the number of the first layer enclosure components is one; multiple reinforcing components are provided on the outside of the top two battery pack layers; at least three of the reinforcing components are distributed along the length direction of the fixed support components.

[0061] In some embodiments, if the battery pack has five layers, the number of the first layer enclosure assembly and the number of the second layer enclosure assembly are one; the top two battery pack layers are provided with a plurality of the reinforcing assemblies; at least three of the reinforcing assemblies are distributed along the length of the fixed support assembly.

[0062] This disclosure further provides a battery pack stacking system for a battery system, including:

[0063] Memory; and

[0064] A processor coupled to the memory is configured to execute a battery pack stacking method for a battery system as provided in any of the present disclosure, based on instructions stored in the memory.

[0065] This disclosure also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a battery pack stacking method for a battery system as provided in any of the technical solutions of this disclosure.

[0066] The aforementioned technical solution provides a fixed support assembly that can support and fix multiple battery packs, providing support and side protection. The bottom support connects to the vehicle frame, specifically through bolt fixing. The enclosure assembly connects the bottom support to the battery pack and also provides side protection. Since the enclosure assembly primarily fixes one or more battery packs located below, its height is lower than the total height of all battery packs, effectively lowering the center of gravity of the overall structure formed by the fixed support assembly and battery packs, thus improving product stability during use. Furthermore, the aforementioned fixed support assembly, while meeting the requirements for ultra-strong protection, heavy-duty support, and adaptability to harsh working conditions, also considers overall versatility, modular design, and low processing costs, effectively filling the gap in the current market for multi-layer battery pack stacking system support and fixing architecture. Attached Figure Description

[0067] Figure 1 is a three-dimensional structural diagram of a fixed support assembly provided in some embodiments of this disclosure.

[0068] Figure 2 is a three-dimensional structural diagram of the bottom support member of a fixed support assembly provided in some embodiments of this disclosure.

[0069] Figure 3 is a front view of the bottom support component of the fixed support assembly provided in some embodiments of this disclosure.

[0070] Figure 4 is a three-dimensional structural diagram of the first layer of the enclosure assembly of the fixed support component provided in some embodiments of this disclosure.

[0071] Figure 5 is a three-dimensional structural diagram of the first layer of the fixed support assembly provided in some embodiments of this disclosure.

[0072] Figure 6 is a three-dimensional structural diagram of the second-layer enclosure assembly of the fixed support component provided in some embodiments of this disclosure.

[0073] Figure 7 is a three-dimensional structural diagram of the reinforcing component of the fixed support assembly provided in some embodiments of this disclosure.

[0074] Figure 8 is a three-dimensional structural diagram of the battery box.

[0075] Figure 9 is a three-dimensional structural diagram of a battery system provided in some embodiments of this disclosure, when the vibration intensity is less than or equal to 2.88g, including a three-layer battery pack.

[0076] Figure 10 is a three-dimensional structural diagram of a battery system provided in some embodiments of this disclosure when the vibration intensity is greater than 2.88g, including a three-layer battery pack.

[0077] Figure 11 is a three-dimensional structural diagram of a battery system provided in some embodiments of this disclosure, when the vibration intensity is less than or equal to 2.88g, including a four-layer battery pack.

[0078] Figure 12 is a three-dimensional structural diagram of a battery system provided in some embodiments of this disclosure when the vibration intensity is greater than 2.88g, including a four-layer battery pack.

[0079] Figure 13 is a three-dimensional structural diagram of a battery system including a five-layer battery pack according to some embodiments of the present disclosure.

[0080] Figure 14 is a schematic diagram of a battery pack stacking method for a battery system provided in some embodiments of this disclosure.

[0081] Reference numerals: 1. Bottom support; 2. First layer fencing assembly; 3. Second layer fencing assembly; 4. Reinforcing assembly; 5. Battery pack; 6. Battery housing; 11. First connecting hole; 12. Second connecting hole; 13. Third connecting hole; 20. First mounting cavity; 21. First fencing assembly; 211. First support plate; 212. Second support plate; 213. First middle support plate; 214. First support upright plate; 215. First reinforcing plate; 216. Second reinforcing plate; 211a. First mounting hole; 212a. Second mounting hole; 217. First opening frame; 30. Second mounting cavity; 31. Second fencing assembly; 311. Third support plate; 312. Fourth support plate; 313. Second middle support plate; 314. Second support upright plate; 312a. Fourth mounting hole; 315. Third reinforcing plate; 311a. Third mounting hole; 316. Second opening frame; 41. First plate; 411. First through hole; 42. Second plate; 421. Second through hole; 43. Third plate. Detailed Implementation

[0082] The technical solutions provided in this disclosure will be described in more detail below with reference to Figures 1 to 14. The descriptions of exemplary embodiments are merely illustrative and are in no way intended to limit this disclosure or its application or use. This disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make this disclosure thorough and complete, and to fully express the scope of this disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0083] The terms “first,” “second,” and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as “including” or “contains” mean that the element preceding the word covers the element listed after the word, and do not exclude the possibility of covering other elements as well.

[0084] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0085] All terms used in this disclosure, including technical or scientific terms, have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0086] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment shall be considered part of the specification.

[0087] The dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Common structural elements or elements of the same kind are given the same reference numerals in the various drawings, and repeated descriptions of them are omitted where appropriate.

[0088] A three-dimensional Cartesian coordinate system (XYZ) is established in Figure 1. The X-axis extends along the length of the fixed support component. The Y-axis extends along the width of the fixed support component. The Z-axis extends along the height of the fixed support component. The length, width, and height directions in this paper are based on the directions defined above.

[0089] In this article, the layers are counted from the bottom to the top, with the bottom layer being the first layer, and the layers above being the second and third layers.

[0090] Figure 1 is a perspective structural diagram of a fixed support assembly provided in some embodiments of this disclosure. Figure 2 is a perspective structural diagram of the bottom support member of a fixed support assembly provided in some embodiments of this disclosure. Figure 3 is a front view structural diagram of the bottom support member of a fixed support assembly provided in some embodiments of this disclosure. Figure 4 is a perspective structural diagram of the first layer enclosure assembly of a fixed support assembly provided in some embodiments of this disclosure. Figure 5 is a perspective structural diagram of the first layer enclosure assembly of a fixed support assembly provided in some embodiments of this disclosure. Figure 6 is a perspective structural diagram of the second layer enclosure assembly of a fixed support assembly provided in some embodiments of this disclosure. Figure 7 is a perspective structural diagram of the reinforcing assembly of a fixed support assembly provided in some embodiments of this disclosure. Figure 8 is a perspective structural diagram of the battery box. Figure 9 is a perspective structural diagram of the battery system provided in some embodiments of this disclosure when the vibration intensity is less than or equal to 2.88g when the battery system includes a three-layer battery pack. Figure 10 is a perspective structural diagram of the battery system provided in some embodiments of this disclosure when the vibration intensity is greater than 2.88g when the battery system includes a three-layer battery pack. Figure 11 is a perspective structural diagram of the battery system provided in some embodiments of this disclosure when the vibration intensity is less than or equal to 2.88g when the battery system includes a four-layer battery pack. Figure 12 is a three-dimensional structural diagram of a battery system provided in some embodiments of the present disclosure when the vibration intensity is greater than 2.88g, including a four-layer battery pack. Figure 13 is a three-dimensional structural diagram of a battery system provided in some embodiments of the present disclosure when including a five-layer battery pack.

[0091] The fixed support assembly shown in Figures 1 and 13 is used for the installation of a five-layer battery pack 5. The top two battery pack layers 5 are located on top of and outside the fixed support assembly. The lower three battery pack layers 5 are located inside the fixed support assembly. Figures 9 and 10 show the installation of a three-layer battery pack 5 using the fixed support assembly. The top two battery pack layers 5 are located on top of and outside the fixed support assembly. The lower battery pack layer 5 is located inside the fixed support assembly. Figures 11 and 12 show the installation of a four-layer battery pack 5 using the fixed support assembly. The top two battery pack layers 5 are located on top of and outside the fixed support assembly. The lower two battery pack layers 5 are located inside the fixed support assembly. Each battery pack 5 includes a battery housing 6 and individual battery cells (not shown) fixed within the battery housing 6.

[0092] This disclosure provides a fixing support assembly for securing a battery system comprising at least three battery packs 5. For large-tonnage electric engineering vehicles, the battery systems typically consist of numerous battery packs 5 stacked in multiple layers, thus placing extremely high demands on the support performance and stability of the fixing support assembly. Therefore, the fixing support assembly provided in some embodiments of this disclosure is particularly suitable for large-tonnage electric engineering vehicles.

[0093] The top two battery packs 5 of the battery system are fixedly mounted on top of the fixed support assembly. The remaining battery packs 5 of the battery system are placed inside the fixed support assembly. Specifically, they can be placed in one of the first mounting cavity 20 or the second mounting cavity 30, which will be described later.

[0094] The fixed support assembly includes a bottom support 1, a enclosure assembly 2', and a reinforcing assembly 4. The bottom support 1 is configured to provide support. The enclosure assembly 2' is fixedly connected to the bottom support 1; the enclosure assembly 2' includes a mounting cavity 20'. The reinforcing assembly 4 is supported by the enclosure assembly 2. The battery system includes at least three battery packs 5, with the top two battery packs 5 located outside the enclosure assembly 2' and supported by it, and the remaining battery packs 5 installed inside the mounting cavity 20'. The reinforcing assembly 4 is configured to be detachably fixedly connected to the two battery packs 5 located outside the enclosure assembly 2'.

[0095] In some embodiments, referring to Figures 11 and 12, the fencing component 2' includes a first layer fencing component 2.

[0096] In other embodiments, referring to Figures 9 and 10, the fencing assembly 2' includes a second fencing assembly 3.

[0097] In some other embodiments, referring to Figures 1 and 13, the fencing assembly 2' includes a first layer fencing assembly 2 and a second layer fencing assembly 3. The height of the first layer fencing assembly 2 is greater than the height of the second layer fencing assembly 3.

[0098] The fixed support assembly shown in Figures 1 and 13 has the most complex structure, and will be described using the fixed support assembly shown in Figures 1 and 13 as an example. If the first layer enclosure assembly 2 is set alone, the second layer enclosure assembly 3 in Figure 1 can be removed. If the second layer enclosure assembly 3 is set alone, the first layer enclosure assembly 2 in Figure 1 can be removed, and the second layer enclosure assembly 3 can be detachably and fixedly connected to the bottom support member 1.

[0099] The fixed support assembly includes a bottom support 1 and at least one of a first-layer enclosure assembly 2 and a second-layer enclosure assembly 3. The bottom support 1 is configured to provide support. The first-layer enclosure assembly 2 is fixedly mounted on top of the bottom support 1; the first-layer enclosure assembly 2 includes a first mounting cavity 20 for placing a battery pack 5. The second-layer enclosure assembly 3 is fixedly mounted on top of the first-layer enclosure assembly 2; the second-layer enclosure assembly 3 includes a second mounting cavity 30 for placing a battery pack 5. The height of the first-layer enclosure assembly 2 is greater than the height of the second-layer enclosure assembly 3. The height of the first-layer enclosure assembly 2 corresponds to the height of two battery packs, meaning that two battery housings 6 can be installed within the first mounting cavity 20, with each battery pack including one battery housing 6. The height of the second-layer enclosure assembly 3 corresponds to the height of one battery pack, meaning that one battery housing 6 can be installed within the second mounting cavity 30.

[0100] The fixed support assembly provided by the above technical solution has a bottom support at the bottom and, as needed, a first-layer enclosure assembly 2 and one or more second-layer enclosure assemblies 3 at the top. The first-layer enclosure assembly 2 corresponds to two battery packs 5. Each second-layer enclosure assembly 3 corresponds to one battery pack 5. Through the coordinated operation of the bottom support 1, the first-layer enclosure assembly 2, and the second-layer enclosure assembly 3, stable assembly and convenient placement / removal of the multi-layer battery packs 5 are achieved.

[0101] The bottom support component 1 can be made of metal material with high strength and corrosion resistance. The whole component is a plate structure adapted to the space inside the vehicle battery compartment. It can bear the total weight of the multi-layer battery pack 5 and each enclosure component, providing a reliable bottom support foundation for the entire fixed support component.

[0102] At the top of the bottom support 1, the first-layer enclosure assembly 2 is detachably connected to the bottom support 1 using high-strength connectors such as bolts to ensure a stable connection. The first-layer enclosure assembly 2 can be designed to be open at one end along its length. The first-layer enclosure assembly 2 is used to install and fix the bottommost first and second-layer battery packs 5, i.e., the two lowest battery packs 5. The first-layer enclosure assembly 2 can be implemented in various ways. For example, it can adopt a structure combining a three-sided metal frame and protective plates. That is, a metal frame is set along both sides of the width direction and the closed end along the length direction of the battery pack 5, with protective plates fixed inside the frame, together forming a first mounting cavity 20 that is open only at one end along its length. The external dimensions of the first mounting cavity 20 match the battery pack 5 to be installed, and its height can completely cover the side of the lower battery pack 5 while leaving a reasonable assembly gap. The open end of the first mounting cavity 20 facilitates the pushing in and taking out of the battery pack 5, and also facilitates the leading out of the cooling components of the battery pack 5 from the open section. Another implementation method is a three-sided metal square tube welded frame structure. Specifically, metal square tubes are welded to both sides in the width direction and the closed end in the length direction of the battery pack 5 to form a frame that is open on one side and limited on the three sides. Positioning is achieved by the square tubes abutting against the sides and closed ends of the battery pack 5. The open end is unobstructed, and the frame structure can improve air circulation and heat dissipation of the battery pack 5, making it more suitable for scenarios with high heat dissipation requirements.

[0103] On top of the first-layer fencing assembly 2, a second-layer fencing assembly 3 is also fixedly installed via connectors. The number of second-layer fencing assemblies 3 is set to one or more. If there are multiple second-layer fencing assemblies 3, they are stacked in the height direction. Except for the bottom two battery packs 5, each remaining battery pack 5 corresponds to one second-layer fencing assembly 3. In some embodiments, all second-layer fencing assemblies 3 are open at one end in the length direction, implemented similarly to the first-layer fencing assembly 2. If the first-layer fencing assembly 2 uses a three-sided frame and protective plate structure, the second layer uses the same structure to improve the consistency of multi-layer assembly. If the first-layer fencing assembly 2 uses a three-sided metal square tube frame structure, the second layer can also use this structure.

[0104] The height of the first layer of enclosure components 2 is greater than that of the second layer of enclosure components 3, which not only fully limits the lower battery pack 5, but also lowers the center of gravity of the upper structure and reduces the risk of top load displacement. At the same time, the opening direction of all enclosure components is uniform, ensuring the consistency and convenience of the multi-layer battery pack 5 loading and unloading operations.

[0105] The fixed support assembly provided by the above technical solution adopts a structure that fixes each layer of battery pack 5 in layers. The height of the first layer enclosure assembly 2 is greater than the height of the second layer enclosure assembly 3. By controlling the height of the second layer enclosure assembly 3, the center of gravity distribution of the fixed support assembly is optimized. In addition, it better meets the dynamic stability requirements of vehicle driving. Large-tonnage electric engineering vehicles will face dynamic loads such as bumps and centrifugal forces during driving. If the upper enclosure assembly is too high, it will not only cause the center of gravity of the upper enclosure assembly to be far away from the lower first layer enclosure assembly 2, but may also create a top-heavy stress state. Under dynamic loads, there is a risk of swaying of the upper structure or even overall displacement. With the lower second layer enclosure assembly 3, the weight of the entire fixed support assembly and battery pack 5 is more concentrated downward, which can reduce the torque displacement under dynamic loads, improve the stability of multi-layer assembly, and reduce the load-bearing burden of the bottom support 1.

[0106] Figure 2 is a perspective view of the bottom support member 1 of the fixed support assembly provided in some embodiments of this disclosure. Figure 3 is a front view of the bottom support member 1 of the fixed support assembly provided in some embodiments of this disclosure.

[0107] Referring to Figures 2 and 3, the bottom support component 1 adopts a plate-like structure, and correspondingly provides a first connecting hole 11, a second connecting hole 12, and a third connecting hole 13 on the plate. The first connecting holes 11 are distributed in two concentric rings, specifically countersunk holes. The first connecting holes 11 are used to achieve a detachable connection between the fixed support component and the vehicle body. The second connecting holes 12 are located within the annular area enclosed by the inner and outer rings of the first connecting holes 11, and are bolt holes, used to form a detachable fixed connection with the first layer of enclosure component 2. The third connecting holes 13 are at least partially located within the area enclosed by the second connecting holes 12, and are also bolt holes, used to form a detachable fixed connection with the bottommost battery pack 5.

[0108] The above technical solution utilizes a single steel plate for the bottom support component 1, avoiding modular processing and thus reducing the potential strength risks associated with welds during component assembly. Compared to the drawbacks of welds in modular structures, which are prone to cracking and deformation under concentrated stress, a single steel plate allows for the even distribution of the vehicle load and battery system weight to the frame, significantly improving the load-bearing stability and fatigue resistance of the bottom support component 1. This is particularly suitable for scenarios involving long-term high-load operation of heavy-duty electric engineering vehicles.

[0109] The first connecting hole 11 adopts a countersunk hole design, allowing the bolt head to be fully embedded in the hole without protruding from the surface of the bottom support 1 and causing assembly interference with the first layer of enclosure assembly 2. The two concentric rings of the first connecting holes 11 enhance the connection strength between the first connecting hole 11 and the vehicle, eliminating the need for additional space to allow for bolt head clearance. This indirectly reduces the assembly gap between the bottom support 1 and surrounding components, providing more space for the compact layout of the battery system and other mounting brackets, and adapting to the limited installation space in the vehicle's battery compartment. The number of first connecting holes 11 is large, and some can be used as needed to meet the installation requirements of different scenarios.

[0110] The bottom support 1 is provided with a first connecting hole 11, a second connecting hole 12 and a third connecting hole 13, forming a one-stop fixing interface: different connecting holes correspond to different assembly objects, which not only reduces the assembly error caused by the mixing of hole positions, but also meets the multiple needs of connecting with the whole vehicle frame, fixing with the first layer enclosure component 2, and positioning with the bottom battery pack 5, reducing the use of additional connecting parts, simplifying the assembly process, and improving the convenience of disassembly and assembly during later maintenance.

[0111] Figure 4 is a perspective structural diagram of the first-layer enclosure component 2 of the fixed support assembly provided in some embodiments of this disclosure. Figure 5 is a perspective structural diagram of the first-layer enclosure component 2 of the fixed support assembly provided in some embodiments of this disclosure.

[0112] Referring to Figures 1 to 5, the first-layer enclosure assembly 2 includes multiple first enclosure panel assemblies 21, which together form a first mounting cavity 20 open at one end. Specifically, the first enclosure panel assemblies 21 are installed on the left, right, and rear sides of the first-layer enclosure assembly 2, as shown in Figures 4 and 5. Multiple first enclosure panel assemblies 21 are arranged on each side, and the multiple first enclosure panel assemblies 21 on each side are arranged side by side and fixedly connected together to form a whole.

[0113] In some embodiments, each of the first enclosure panel assemblies 21 includes a first support plate 211, a second support plate 212, a first central support plate 213, a first support upright plate 214, a first reinforcing plate 215, and a second reinforcing plate 216. Each of the aforementioned plates can be a flat plate. The first support plate 211 is detachably fixedly connected to the bottom support member 1. The second support plate 212 is arranged parallel to and spaced apart from the first support plate 211. The first central support plate 213 is installed between the first support plate 211 and the second support plate 212, and is detachably fixedly connected to both the first support plate 211 and the second support plate 212. The first support upright plate 214 is fixedly connected to the first support plate 211, the second support plate 212, and the first central support plate 213. The first reinforcing plate 215 is located outside the first mounting cavity 20 and is fixedly connected to both the first support plate 211 and the first central support plate 213. The second reinforcing plate 216 is located outside the first mounting cavity 20 and is fixedly connected to both the second support plate 212 and the first middle support plate 213.

[0114] The first support plate 211 and the second support plate 212 serve as the upper and lower foundation load-bearing components of the first enclosure panel assembly 21, primarily bearing vertical loads. The first middle support plate 213 is located between the two, acting as intermediate support and force transmission. The first support upright plate 214 serves as a longitudinal reinforcing member, increasing the vertical stability of the first enclosure panel assembly 21. The first reinforcing plate 215 and the second reinforcing plate 216 reinforce the weak areas on the sides, forming a more stable support structure.

[0115] The first support plate 211 and the bottom support member 1 are detachably fixedly connected. This connection method not only ensures that the first support plate 211 fits firmly with the bottom structure, ensuring that the force on the bottom of the component can be stably transmitted to the bottom support member 1, but also allows for disassembly, maintenance, replacement of parts, or adjustment of the position of the first enclosure plate component 21 without damaging the overall structure, thus improving the convenience of operation.

[0116] The second support plate 212 is arranged parallel to and spaced apart from the first support plate 211. The parallel design ensures a uniform force distribution when both are under load, reducing localized stress concentration caused by deviations in the force direction. The spaced arrangement provides adequate space for the installation of the first central support plate 213, while also creating an orderly force transmission path within the first enclosure assembly 21. This allows the upper and lower first support plates 211 and the second support plate 212 to work together to bear loads, improving the overall load-bearing capacity. The first central support plate 213 is installed between the first support plate 211 and the second support plate 212, and is detachably fixed to both. Its installation position allows it to simultaneously bear loads from both the first and second support plates 211 and 212, uniformly transmitting force between the upper and lower support plates and reducing overload on a single support plate. The detachable connection also ensures ease of maintenance; when the first central support plate 213 is worn or damaged, it can be disassembled and replaced individually, reducing maintenance costs and difficulty.

[0117] The first support plate 214 is fixedly connected to the first support plate 211, the second support plate 212, and the first middle support plate 213. This multi-point fixing method allows the first support plate 214 to form a solid overall structure with the three core support plates. On the one hand, it can effectively resist the impact of lateral external forces such as wind force and collision force on the first enclosure panel assembly 21, reducing or even preventing lateral deformation or tilting of the first enclosure panel assembly 21. On the other hand, it can further strengthen the connection stability between the three support plates, the first support plate 211, the second support plate 212, and the first middle support plate 213, reduce the relative displacement of each support plate when under force, and improve the overall structural rigidity of the first enclosure panel assembly 21.

[0118] The first reinforcing plate 215 is located on the outside of the first mounting cavity 20 and is fixedly connected to both the first support plate 211 and the first central support plate 213. The second reinforcing plate 216 is located on the outside of the first mounting cavity 20 and is fixedly connected to both the second support plate 212 and the first central support plate 213. The outer mounting positions of the two reinforcing plates can specifically reinforce the structurally weak areas on the outside of the first mounting cavity 20, minimizing the reduction in local structural strength due to the presence of the mounting cavity. Simultaneously, the first reinforcing plate 215 and the second reinforcing plate 216 are connected to different support plates and the first central support plate 213, respectively, which can transfer the external force to the internal core support structure, disperse local stress, prevent cracking and deformation in the outer area, and further improve the overall damage resistance and service life of the enclosure panel assembly.

[0119] In some embodiments, the first support plate 211 is provided with a plurality of first mounting holes 211a. The first support plate 211 is one of the basic load-bearing components of the first enclosure assembly 21, mainly bearing vertical loads and providing an installation reference for other components. The first mounting holes 211a are functional holes opened on the first support plate 211, which provide an assembly interface for the connection between the first support plate 211 and the bottom support member 1. The first mounting holes 211a can be used with fasteners such as bolts and screws to achieve a detachable and fixed connection between the first support plate 211 and the bottom support member 1. When it is necessary to assemble the first support plate 211 and the bottom support member 1, the fasteners pass through the first mounting holes 211a and are threadedly connected to the corresponding holes of the bottom support member 1 to form a stable connection. If disassembly and maintenance are required in the future, the components can be separated simply by removing the fasteners without damaging the body of the first support plate 211. The design of multiple first mounting holes 211a ensures that the connection points are evenly distributed on the first support plate 211, minimizing the risk of localized damage caused by concentrated stress at a single connection point. Simultaneously, the flexible hole layout allows for adaptation to bottom support components 1 of different sizes or installation requirements, enhancing the versatility of the first support plate 211. The detachable connection reduces the difficulty of component replacement and maintenance, thereby lowering subsequent operation and maintenance costs.

[0120] The second support plate 212 is provided with multiple second mounting holes 212a. The second support plate 212 is parallel to and spaced apart from the first support plate 211. The second support plate 212 is also a core load-bearing component of the first enclosure assembly 21, responsible for coordinating with the first support plate 211 to distribute the load and maintain the overall balance of the first-layer enclosure assembly 2. The second mounting holes 212a are dedicated assembly holes opened on the second support plate 212. Their function is similar to the first mounting holes 211a, but they are primarily for connecting components corresponding to the second support plate 212, specifically the second-layer enclosure assembly 3. The second mounting holes 212a, through other fasteners, enable a detachable and fixed connection between the second support plate 212 and the second-layer enclosure assembly 3, ensuring a stable connection and flexible disassembly. The distribution of multiple second mounting holes 212a allows for more even stress distribution on the second support plate 212, minimizing localized stress overload caused by insufficient connection points.

[0121] It should be noted that the two cases of the first support plate 211 having the first mounting hole 211a and the second support plate 212 having the second mounting hole 212a can exist alone or simultaneously. This not only meets the assembly requirements under different scenarios, but also provides flexibility for the component structure design, further improving the adaptability and practicality of the first enclosure component 21.

[0122] In some embodiments, the first layer enclosure assembly 2 further includes a first opening frame 217, which is installed at the opening of the first mounting cavity 20.

[0123] The first-layer enclosure assembly 2 is the lowest structure of the fixed support assembly. It plays a crucial role in constructing the overall enclosure frame, bearing the load of the upper second-layer enclosure assembly 3, and providing the mounting foundation for the internal battery pack 5. It is one of the main components contributing to the structural stability and functionality of the fixed support assembly. The first opening frame 217 serves both a supporting and load-bearing function, and also provides assembly space for the cooling system of the battery pack 5. The first opening frame 217 is installed at the opening of the first mounting cavity 20, a hollow structure inside the first-layer enclosure assembly 2 used to accommodate the battery pack 5. The first opening frame 217 forms a stable connection with the opening edge of the first mounting cavity 20. This installation method ensures the reliability of the connection between the first opening frame 217 and the first enclosure assembly 21, reducing or even avoiding structural loosening or functional failure caused by gaps in the connection. It also allows the first opening frame 217 to precisely cover the opening of the first mounting cavity 20, ensuring that communication between the internal space of the first mounting cavity 20 and the outside is achieved solely through the first opening frame 217.

[0124] The first opening frame 217 provides space for the cooling system of the battery pack 5, allowing the cooling pipes of the cooling system to exit from the first opening frame 217. This technical solution firstly solves the compatibility problem between the battery cooling system and the first-layer enclosure component 2. The cooling system needs to achieve heat conduction and circulation through cooling pipes. If there is a lack of dedicated space and exit channels, the cooling pipes will interfere with the first-layer enclosure component 2, or cause difficulties in later maintenance due to a cluttered layout. By reserving dedicated space in the first opening frame 217, the exit path of the cooling pipes is made more regular and clear, and the cooling pipes do not interfere with other components. Secondly, this design ensures the operating efficiency of the cooling system. When the cooling pipes exit from the first opening frame 217, they do not need to bypass the first-layer enclosure component 2, which shortens the ineffective layout length of the cooling pipes, reduces heat loss of the cooling medium during transmission, and allows the cooling medium to reach the battery area more efficiently, improving the battery cooling effect. At the same time, the first opening frame 217 constrains the exit position of the cooling pipes, ensuring that the cooling pipe layout conforms to structural design specifications. If the cooling pipes need to be inspected or replaced in the future, the staff can directly locate the pipe outlet point through the first opening frame 217 without disassembling the overall structure of the first layer enclosure component 2, which greatly reduces the difficulty and time cost of maintenance operations and further improves the ease of use of the fixed support components.

[0125] The number of second-layer enclosure components 3 can be one or more. Engineering vehicles, especially large heavy-duty machinery, use a relatively large number of battery packs 5. Battery packs 5 with fewer than three layers (excluding three layers) have insufficient power to meet the operational requirements of large heavy-duty machinery. Battery packs 5 with more than five layers (excluding five layers) are often unsuitable for battery pack systems due to excessive height and limited vehicle space, and are therefore not considered. Therefore, some embodiments of this disclosure mainly address three-layer, four-layer, or five-layer battery packs 5.

[0126] When the battery pack 5 has three layers, the fixing support assembly has a first-layer enclosure assembly 2 and a second-layer enclosure assembly 3. The first-layer enclosure assembly 2 can fix the bottom two layers of battery pack 5, and the second-layer enclosure assembly 3 can fix the top layer of battery pack 5.

[0127] When the battery pack 5 has four layers, the fixing support assembly has one first-layer enclosure assembly 2 and two second-layer enclosure assemblies 3. The first-layer enclosure assembly 2 can fix the bottom two layers of battery pack 5, and each second-layer enclosure assembly 3 can fix the uppermost layer of battery pack 5.

[0128] When the battery pack 5 has five layers, the fixing support assembly has one first-layer enclosure assembly 2 and three second-layer enclosure assemblies 3. The first-layer enclosure assembly 2 can fix the bottom two layers of battery pack 5, and each second-layer enclosure assembly 3 can fix the uppermost layer of battery pack 5.

[0129] In some embodiments, the number of second-layer fencing components 3 is at least two, and adjacent second-layer fencing components 3 are fixedly connected in a stacked manner.

[0130] The second-layer fencing component 3 is located above the first-layer fencing component 2. It can further extend the height of the fixed support component or enhance its protective performance based on the first-layer fencing component 2. Simultaneously, the second-layer fencing component 3 can work with the first-layer fencing component 2 to form a multi-level support and protection system, providing more comprehensive enclosure and protection for components such as the battery pack 5. As the upper core component of the fencing structure, the second-layer fencing component 3 bears the supporting force of the first-layer fencing component 2 and enhances the overall fixed support component's resistance to external forces, such as impact and deformation, through its own structural strength.

[0131] Adjacent second-layer fencing components 3 are fixedly connected by stacking, specifically, the upper second-layer fencing component 3 and the lower second-layer fencing component 3 are stacked vertically on top of each other and formed a stable connection using bolts, clips, etc. This stacking method allows for direct force transfer between adjacent second-layer fencing components 3. The lower second-layer fencing component 3 can directly bear the weight of the upper second-layer fencing component 3, reducing or even preventing damage to a single second-layer fencing component 3 due to overload. Simultaneously, the stacked fixed support components reduce the gaps between the second-layer fencing components 3, allowing multiple second-layer fencing components 3 to form a continuous upper fencing surface, reducing or even preventing insufficient protection due to gaps, preventing foreign objects from entering, and preventing the exposure of internal equipment.

[0132] The aforementioned technical solution overcomes the height limitation of a single second-layer fencing component 3, allowing for flexible increases in the number of second-layer fencing components 3 according to actual protection needs. This enables on-demand adjustment of the height of the fixed support components, improving their applicability. Secondly, the stacked fixing method significantly enhances the overall rigidity of the upper second-layer fencing component 3. The integrated structure formed by stacking multiple second-layer fencing components 3 exhibits stronger resistance to deformation than a single component. When subjected to lateral external forces such as wind or impact, the force can be distributed across multiple second-layer fencing components 3, reducing or even preventing component deformation or breakage caused by localized stress concentration. Finally, this connection method simplifies the assembly process. Adjacent second-layer fencing components 3 can be initially positioned by stacking and aligning, and then a stable connection can be achieved with the fixing structure, eliminating the need for complex positioning fixtures and improving assembly efficiency. Furthermore, if subsequent maintenance or height adjustments of the second-layer fencing components 3 are required, a single second-layer fencing component 3 can be disassembled without disassembling all of them, reducing maintenance difficulty and costs.

[0133] In some embodiments, the second-layer enclosure assembly 3 includes a plurality of second enclosure panel assemblies 31, which form a second mounting cavity 30 with one end open.

[0134] The second fencing assembly 31 is the basic unit constituting the second-layer fencing assembly 3. Each second fencing assembly 31 has independent support and protection capabilities. Multiple assemblies can be combined and their layout flexibly adjusted according to the overall size and shape requirements of the second-layer fencing assembly 3 to form a suitable upper-layer fencing frame. Multiple second fencing assemblies 31 are assembled and fixed using methods such as bolting and welding to form the second-layer fencing assembly 3. This unit-based connection method makes the structure of the second-layer fencing assembly 3 more flexible. If it is necessary to adjust the size of the second-layer fencing assembly 3 or repair local damage, only the corresponding second fencing assembly 31 needs to be replaced or added, without disassembling the entire second-layer fencing assembly 3, reducing the difficulty of maintenance and modification.

[0135] Multiple second enclosure assemblies 31 form a second mounting cavity 30 with one open end. The second mounting cavity 30 is a functional cavity formed inside the second enclosure assembly 3. The open end of the second mounting cavity 30 provides an operating passage for the installation, inspection, and maintenance of equipment inside. The multiple second enclosure assemblies 31, through their orderly enclosing arrangement, form the second mounting cavity 30 in space, providing surrounding protection for the internal equipment and reducing the impact of external impacts and foreign object intrusion. The open portion also facilitates the installation of cooling pipes for the battery pack 5's cooling system.

[0136] The above technical solution employs a design where multiple second enclosure panel components 31 constitute the second-layer enclosure component 3, making the production and assembly of the second-layer enclosure component 3 more efficient. Individual second enclosure panel components 31 are smaller and easier to manufacture, allowing for mass production followed by on-site assembly, thus reducing overall production and transportation costs. Secondly, the enclosed second mounting cavity 30 provides precise protection for the internal equipment, while the side wall second enclosure panel components 31 can block external lateral forces from impacting the equipment, reducing the risk of damage caused by external forces. Finally, the open end of the second mounting cavity 30 balances protection and operability, achieving both fully enclosed chamber installation and maintenance without the protection failing due to an excessively large opening. This balance between protection and avoidance further enhances the practicality and adaptability of the fixed support components.

[0137] Figure 6 is a three-dimensional structural diagram of the second-layer enclosure component 3 of the fixed support component provided in some embodiments of this disclosure.

[0138] Referring to Figures 1-6, especially Figures 1, 4, and 6, in some embodiments, each of the second enclosure assembly 31 includes a third support plate 311, a fourth support plate 312, a second central support plate 313, a second support upright plate 314, and a third reinforcing plate 315. The third support plate 311 is detachably fixedly connected to the top of the first-layer enclosure assembly 2. The fourth support plate 312 is arranged parallel to and spaced apart from the third support plate 311. The second central support plate 313 is installed between the third support plate 311 and the fourth support plate 312, and is detachably fixedly connected to both the third support plate 311 and the fourth support plate 312. The second support upright plate 314 is fixedly connected to the third support plate 311, the fourth support plate 312, and the second central support plate 313. The third reinforcing plate 315 is located outside the second mounting cavity 30 and is fixedly connected to both the fourth support plate 312 and the second central support plate 313.

[0139] The third support plate 311 is the bottom foundation component of the second enclosure panel assembly 31, mainly responsible for transmitting the vertical load of the second enclosure panel assembly 31. The fourth support plate 312 corresponds to the third support plate 311 and is the top load-bearing component of the second enclosure panel assembly 31, working in conjunction with the third support plate 311 to maintain the vertical structural balance of the assembly. The second middle support plate 313 is located between the two, serving as intermediate support and force transmission, reducing or even preventing structural deformation caused by excessive spacing between the third and fourth support plates 311 and 312. The second support upright plate 314 is a longitudinal reinforcing member of the assembly, used to enhance overall vertical stability; the third reinforcing plate 315 reinforces specific weak areas, improving the local damage resistance of the assembly.

[0140] The third support plate 311 is detachably fixed to the top of the first-layer fencing assembly 2. This connection method increases the stability and fit between the third support plate 311 and the first-layer fencing assembly 2, allowing the load of the second fencing assembly 31 to be stably transferred to the first-layer fencing assembly 2, achieving force coordination between the upper and lower layers. Furthermore, the detachable connection facilitates later maintenance. When the second fencing assembly 31 needs repair, replacement, or repositioning, there is no need to damage the structure of the first-layer fencing assembly 2; only the corresponding second fencing assembly 31 needs to be removed, significantly reducing operational difficulty and cost.

[0141] The fourth support plate 312 is arranged parallel to and spaced apart from the third support plate 311. The parallel design ensures that the force directions of both are consistent, reducing or even avoiding local stress concentration caused by angular deviations, and allowing the load to be evenly distributed within the component. The spaced arrangement provides reasonable space for the installation of the second central support plate 313, while also creating an orderly force transmission path within the second enclosure assembly 31. This allows the third support plate 311 and the fourth support plate 312 to effectively transmit forces through the second central support plate 313, improving the overall load-bearing efficiency.

[0142] The second central support plate 313 is installed between the third support plate 311 and the fourth support plate 312, and is detachably fixedly connected to both the third support plate 311 and the fourth support plate 312. This detachable connection method achieves a stable combination of the second central support plate 313 with the third support plate 311 and the fourth support plate 312, while retaining the flexibility to replace or maintain the second central support plate 313 individually. The second central support plate 313 can also bear and distribute the load from the third support plate 311 and the fourth support plate 312, reducing or even avoiding damage to a single support plate due to overload, while filling the structural gaps of the third support plate 311 and the fourth support plate 312, reducing the structural weak points inside the second enclosure panel assembly 31.

[0143] The second support plate 314 is fixedly connected to the third support plate 311, the fourth support plate 312, and the second central support plate 313, which can be welded. This multi-point fixing method allows the second support plate 314 to form a solid overall structure with the three core support plates. It can effectively resist the impact of lateral external forces such as wind and collision forces on the second enclosure assembly 31, preventing the second enclosure assembly 31 from undergoing lateral deformation or tipping. At the same time, the second central support plate 313, through its connection with the three components, further strengthens the coordination between the support plates of the second enclosure assembly 31, reducing or even avoiding relative displacement of the components of the second enclosure assembly 31 under stress, ensuring the overall rigidity of the second enclosure assembly 31.

[0144] The third reinforcing plate 315 is located on the outside of the second mounting cavity 30 and is fixedly connected to the fourth support plate 312 and the second central support plate 313. Its outer mounting position can specifically reinforce the structurally weak areas on the outside of the second mounting cavity 30. Due to the existence of the second mounting cavity 30, the outer side of the cavity is prone to strength reduction due to structural gaps; the third reinforcing plate 315 can fill this gap. Simultaneously, the fixed connection between the third reinforcing plate 315 and the fourth support plate 312 and the second central support plate 313 can transfer the external force to the internal core support structure, disperse local stress, prevent cracking and deformation in the outer area, extend the service life of the second enclosure assembly 31, and ensure the safety of the equipment inside the second mounting cavity 30.

[0145] In some embodiments, the third support plate 311 is provided with a plurality of third mounting holes 311a. The third support plate 311 is the bottom foundation bearing component of the second enclosure assembly 31, and its main function is to bear the vertical load of the second enclosure assembly 31 and transfer the load to the first layer enclosure assembly 2 and the second layer enclosure assembly 3 below it. In the case that the second layer enclosure assembly 3 is multi-layered, it also provides an installation reference for the connection between the second enclosure assembly 31 and the first layer enclosure assembly 2.

[0146] The third mounting hole 311a is a functional hole opened on the third support plate 311, serving as an assembly interface for connecting the third support plate 311 to the first layer enclosure assembly 2 or the lower second layer enclosure assembly 3. The third mounting hole 311a can be fitted with bolts, screws, and other fasteners, enabling a detachable and fixed connection between the third support plate 311 and the corresponding component. When connecting the third support plate 311 to the first layer enclosure assembly 2, the fasteners pass through the third mounting hole 311a and are threaded into the corresponding hole on the top of the first layer enclosure assembly 2. This ensures a secure connection and stable load transmission, while also allowing for quick separation of the components when disassembly is required, without damaging the third support plate 311, the first layer enclosure assembly 2, or the lower second layer enclosure assembly 3. The design of multiple third mounting holes 311a ensures that the connection points are evenly distributed on the third support plate 311, reducing or even avoiding localized damage caused by concentrated stress at a single connection point. Furthermore, the flexible hole layout can adapt to different installation requirements, improving the versatility of the third support plate 311. Detachable connections reduce the difficulty of later maintenance and component replacement, thus reducing operation and maintenance costs.

[0147] The fourth support plate 312 is provided with a plurality of fourth mounting holes 312a. The fourth support plate 312 is the top bearing component of the second enclosure assembly 31. It is arranged parallel to and at intervals with the third support plate 311. It can work with the third support plate 311 to maintain the vertical structural balance of the second enclosure assembly 31, bear possible loads from above and transfer them to the second middle support plate 313.

[0148] The fourth mounting hole 312a is a dedicated assembly hole opened on the fourth support plate 312, used to connect the fourth support plate 312 to other components located on top of it, such as the second enclosure assembly 31 or cover plate. The fourth mounting hole 312a also forms a detachable fixed connection with the corresponding component via fasteners. For example, when connecting the fourth support plate 312 to other components, the fasteners pass through the fourth mounting hole 312a and engage with the corresponding holes of the other components, making the connection secure and allowing for flexible disassembly. Multiple fourth mounting holes 312a can evenly distribute the force on the fourth support plate 312, reducing the occurrence of localized stress overload.

[0149] It should be noted that the third support plate 311 with a third mounting hole 311a and the fourth support plate 312 with a fourth mounting hole 312a can exist individually or simultaneously. When existing individually, they can meet the connection requirements in a single direction, such as only needing to fix the third support plate 311 or only needing to fix the fourth support plate 312. When existing simultaneously, they allow both the upper and lower ends of the second enclosure panel assembly 31 to have stable connection capabilities, further strengthening the overall structural stability of the assembly, adapting to more complex installation scenarios, and improving the practicality and adaptability of the second enclosure panel assembly 31.

[0150] In some embodiments, the second-layer enclosure assembly 3 further includes a second opening frame 316, which is installed at the opening of the second mounting cavity 30.

[0151] The second-layer enclosure assembly 3 is used to further extend the protective height of the fixed support assembly and enhance structural stability based on the first-layer enclosure assembly 2. At the same time, it provides surrounding protection and installation support for equipment in the upper internal area of ​​the fixed support assembly, such as the upper battery pack 5 of the battery system. The second opening frame 316 is a special interface component designed for the functional requirements of the second-layer enclosure assembly 3, providing space for the installation of cooling pipes of the cooling system of the battery pack 5.

[0152] The second opening frame 316 is installed at the opening of the second mounting cavity 30. The second mounting cavity 30 is an upper functional cavity formed by multiple second enclosure assemblies 31, which is used to accommodate the upper battery pack 5 and reduce direct contact between the equipment and the external environment. The opening of the second mounting cavity 30 is a passage for connecting the equipment to external pipelines and lines, or for personnel to install and maintain the equipment.

[0153] The second opening frame 316 forms a stable connection with the edge of the second enclosure assembly 31 at the opening of the second mounting cavity 30, such as through bolt fastening or structural clips. This connection method allows the second opening frame 316 to precisely cover the opening area of ​​the second mounting cavity 30. On the one hand, the outline of the second opening frame 316 perfectly matches the shape and size of the opening of the second mounting cavity 30, ensuring that there are no gaps after the connection, preventing external dust and impurities from entering the interior of the second mounting cavity 30 through gaps and affecting equipment operation. On the other hand, the second opening frame 316, through its fixation to the second enclosure assembly 31, transfers its structural strength to the edge of the opening, compensating for the local structural weakness of the second enclosure assembly 3 caused by the presence of the opening.

[0154] The second opening frame 316 resolves the functional conflict between the second-layer enclosure component 3 and the second mounting cavity 30: the second mounting cavity 30 requires an opening to meet equipment connection and maintenance needs, but this opening weakens the integrity of the second-layer enclosure component 3. The second opening frame 316, while retaining the opening function, maintains the structural stability of the second-layer enclosure component 3, achieving a balance between protection and maintenance. Secondly, the second opening frame 316 provides a neat interface for equipment connection. If pipes and lines are directly laid through the opening of the second mounting cavity 30, problems such as pipe entanglement and messy wiring can easily occur. The second opening frame 316 guides pipes and lines through pre-set channels in an orderly manner, reducing the risk of interference during equipment connection and improving assembly efficiency. Finally, the second opening frame 316 reduces the difficulty of equipment maintenance. When inspecting the equipment inside the second mounting cavity 30, personnel do not need to disassemble the entire second-layer enclosure component 3; they can access the equipment simply through the second opening frame 316, significantly shortening maintenance time. At the same time, the structural strength of the second opening frame 316 provides support for maintenance operations, improving the safety of the maintenance process. In addition, the modular design of the second opening frame 316 also facilitates subsequent upgrades and modifications. If the equipment size or connection requirements change, only the appropriate second opening frame 316 needs to be replaced, without the need to redesign the second layer enclosure component 3, which reduces the cost and cycle of modification.

[0155] Figure 7 is a three-dimensional structural diagram of the reinforcing component 4 of the fixed support assembly provided in some embodiments of this disclosure. Figure 8 is a three-dimensional structural diagram of the battery housing 6.

[0156] Referring to Figures 1 through 8, especially Figures 7 and 8, in some embodiments, the fixing support assembly further includes a reinforcing component 4, which is detachably fixedly connected to the battery housing 6. Each battery pack 5 includes a battery housing 6.

[0157] The battery housing 6 is manufactured using a steel plate and steel pipe splicing and welding process, making it suitable for heavy-duty engineering vehicle applications. The battery housing 6 includes four vertical panels 61, an upper support plate 62, a lower support plate 63, a hoisting fixing block 64, vertical reinforcing pipes 65, and a bottom load-bearing plate 66. The panels are fixedly connected by welding to improve the overall rigidity of the housing and meet vibration resistance requirements. The upper support plate 62 and lower support plate 63 have screw holes for threaded connections between the housings and for locking the housing to the bottom support 1. The hoisting fixing block 64 has external fixing holes for bolt-locking to the external fixing and support components. The battery housing 6 has a simple manufacturing process and, compared to commonly used aluminum profile housings, possesses higher strength and vibration resistance, better meeting the application requirements of heavy-duty engineering vehicles.

[0158] The fixed support assembly also includes a reinforcing component 4, which is detachably and fixedly connected to the battery housing 6. The battery housing 6 is a container for the battery pack 5, providing physical protection for it by isolating it from external dust, moisture, and other impurities. Simultaneously, its structural strength protects the battery pack 5 from external impacts, making it the core load-bearing and protective component of the battery system. The detachable and fixed connection between the reinforcing component 4 and the battery housing 6 can be achieved through bolt fastening, snap-fit ​​engagement, or other means.

[0159] This connection method first enhances the stability of the battery box 6 within the enclosure. If the connection between the battery box 6 and the bottom of the enclosure is the only factor, the battery box 6 is prone to swaying or shifting under lateral forces such as transport bumps or accidental collisions. The reinforcing component 4 provides additional fixation to the battery box 6 from the side or top, effectively providing multi-directional support and significantly reducing the risk of displacement. Secondly, the transition connection of the reinforcing component 4 enables indirect load transfer. The weight of the battery box 6 and its internal battery pack 5 can be distributed to the fixed support components through the reinforcing component 4, reducing or even preventing the weight of the battery box 6 from concentrating at the bottom connection point, thus avoiding localized stress overload. Furthermore, the detachable feature improves maintenance flexibility. When maintenance of the battery pack 5 inside the battery box 6 is required, simply removing the connection between the reinforcing component 4 and the battery box 6 allows the battery box 6 to be removed from the enclosure without disassembling the entire enclosure or fixed support components, shortening maintenance time and reducing operational difficulty.

[0160] Each battery pack 5 is installed within the same battery housing 6. The battery pack 5 is the energy storage component, consisting of multiple battery cells, connecting lines, and protective structures; it is the basic unit for the battery system to supply power. Multiple battery packs 5 on the same layer share a single protective and load-bearing container, rather than having a separate housing for each layer. Each battery pack 5 is fixedly connected to the battery housing 6 via a pre-set mounting structure inside, ensuring that each battery pack 5 is positioned independently while maintaining overall stability through the battery housing 6, reducing or even eliminating relative displacement between the battery packs 5. This design, using a single battery housing 6 for the same layer, simplifies the battery system's structure. Providing a separate housing for each battery pack 5 would increase the overall weight, volume, and cost of the system. Using a single battery housing 6 allows for centralized protection and load-bearing of multiple battery packs 5, reducing the number of components and the overall space occupied by the battery system, making it more suitable for installation within enclosures. Secondly, the battery packs are installed in layers 5, which facilitates unified management and maintenance of the battery packs 5. At the same time, the arrangement between layers also provides space for heat dissipation of the battery packs 5, reducing the safety risks caused by heat accumulation between layers and ensuring the stable operation of the battery system.

[0161] In some embodiments, the reinforcing component 4 includes a first plate 41, a second plate 42, and a third plate 43. The first plate 41 includes a first through hole 411; the first plate 41 is detachably fixedly connected to the battery housing 6. The second plate 42 is fixedly connected to the middle region of the first plate 41 and is arranged perpendicular to the first plate 41. The second plate 42 includes a second through hole 421. The second plate 42 is detachably fixedly connected to the fourth support plate 312 of the second enclosure assembly 31 of the first layer enclosure assembly 2 or the second layer enclosure assembly 3 through the second through hole 421. Alternatively, the second plate 42 is detachably fixedly connected to the second support plate 212 of one of the first enclosure assemblies 21 through the second through hole 421. The third plate 43 is detachably fixedly connected to the first plate 41, the second plate 42, and the third plate 43. The third plate 43 is detachably fixedly connected to the first layer enclosure assembly 2 or the second layer enclosure assembly 3.

[0162] The reinforcing component 4, which strengthens the connection between the enclosure structure and the battery box 6, comprises a first plate 41, a second plate 42, and a third plate 43. The first plate 41 is the core load-bearing component of the entire reinforcing component 4, not only connecting the battery box 6 but also providing a mounting base for the second plate 42 and the third plate 43. Its first through-hole 411 allows for a detachable connection to the battery box 6 while reducing its own weight without compromising structural strength. The second plate 42 is fixedly connected to the first plate 41 and is used for a detachable connection to the top of the first-layer enclosure component 2 or the top of the second-layer enclosure component 3. The perpendicular arrangement of the second plate 42 and the first plate 41 enables multi-directional connections, expanding the number and location of connection points. The third plate 43, as an auxiliary reinforcing rib, forms a triangular stable structure through multi-directional connections with the first plate 41 and the second plate 42, significantly improving the overall rigidity and deformation resistance of the reinforcing component 4. Furthermore, by expanding the stress-bearing area and improving the connection firmness through the third plate 43, the multi-battery pack 5 system can be reliably fixed under the harsh working conditions of heavy engineering vehicles, thereby further improving the overall rigidity and vibration resistance of the battery system.

[0163] Some embodiments of this disclosure also provide a battery system, including a fixed support assembly and a multi-layer battery pack 5 provided in any of the technical solutions of this disclosure. At least one layer of the battery pack 5 is installed within the fixed support assembly.

[0164] The battery pack 5 has three layers. The fixing support assembly includes a second-layer enclosure assembly 3 and a reinforcing assembly 4, but does not include the first-layer enclosure assembly 2. One layer of battery pack 5 is fixed in the second mounting cavity 30 of the second-layer enclosure assembly 3. Two layers of battery pack 5 are also installed on the outside of the second-layer enclosure assembly 3, specifically on the top of the second-layer enclosure assembly 3.

[0165] Alternatively, the battery pack 5 may have four layers, with the fixed support assembly including a first-layer enclosure assembly 2 and a reinforcing assembly 4, but excluding the second-layer enclosure assembly 3. Two battery packs 5 are fixedly installed within the first mounting cavity 20 of the first-layer enclosure assembly 2. Specifically, two battery packs 5 are detachably installed on the exterior, specifically at the top, of the first-layer enclosure assembly 2.

[0166] Alternatively, the battery pack 5 may have five layers, and the fixing support assembly includes a first-layer enclosure assembly 2, a second-layer enclosure assembly 3, and a reinforcing assembly 4. The second-layer enclosure assembly 3 is detachably mounted on the top of the first-layer enclosure assembly 2. Two battery packs 5 are fixedly mounted within the first mounting cavity 20 of the first-layer enclosure assembly 2, and one battery pack 5 is fixedly mounted within the second mounting cavity 30 of the second-layer enclosure assembly 3. Two battery packs 5 are also mounted on the exterior of the second-layer enclosure assembly 3, specifically on its top.

[0167] Some embodiments of this disclosure provide an engineering vehicle that includes a fixed support assembly provided by any of the technical solutions of this disclosure, or a battery system provided by any of the technical solutions of this disclosure.

[0168] The engineering vehicle provided by the above technical solution can meet diverse fixing requirements for battery packs 6 with the same number of layers by adjusting the number and installation position of the reinforcing components 4. By using the first-layer enclosure component 2 and the second-layer enclosure component 3 alone, or by combining the two types of side enclosures, the fixing requirements for battery packs ranging from three layers to five layers can be met. This allows for flexible adjustment of the overall rigidity and vibration resistance of the battery system for different usage scenarios, fully considering diverse needs such as overall versatility, modular design, and low processing costs.

[0169] Referring to Figures 9 to 14, some embodiments of this disclosure provide a battery pack stacking method for a battery system, including the following steps:

[0170] Step S100: Determine the number of layers of the battery pack 5 to be stacked; the number of layers can be three, four, or five. Battery packs 5 with different numbers of layers have different load-bearing capacities, and the overall vibration resistance performance indicators they can meet also differ. Vibration resistance performance indicators are determined by the effective value (RMS, root mean square) of the vibration signal. According to the national standard GB / T31467.3, the standard RMS value for vibration resistance strength of passenger cars and ordinary commercial vehicles is 1.44g. Considering that large heavy-duty vehicles operate under more severe conditions and require higher strength, twice the national standard value (i.e., 2.88g) is used as the vibration resistance performance evaluation standard of this disclosure.

[0171] In step S200, the fixing support assembly is determined to be one or more of the first-layer enclosure assembly 2 and the second-layer enclosure assembly 3, based on the number of layers of the battery pack 5. If the battery pack 5 has 3 layers, the second-layer enclosure assembly 3 can be used alone. If the battery pack 5 has 4 layers, the first-layer enclosure assembly 2 can be used alone. If the battery pack 5 has 5 layers, the first-layer enclosure assembly 2 and the second-layer enclosure assembly 3 can be used simultaneously.

[0172] Step S300: Determine the required number and installation location of the reinforcing components 4 based on the number of layers in the battery pack 5.

[0173] Step S400: Based on the information determined above, assemble a fixed support assembly and install at least one layer of battery pack 5 inside the fixed support assembly.

[0174] The top two battery packs 5 do not need to be placed inside the fixed support assembly; they are directly stacked and fixed together, then placed on top of the fixed support assembly and secured thereto. The required number and installation location of the reinforcing components 4 are determined according to the following strategy:

[0175] In the first scenario: In some embodiments, such as the battery pack stacking method of the previous battery system, if the battery pack 5 has three layers, a vibration intensity standard judgment is required. If the vibration intensity RMS is less than or equal to 2.88g, it indicates that the vibration intensity required for the three-layer battery pack 5 system is within the normal range. No additional reinforcing component 4 is needed. Considering that the overall center of gravity of the battery system is biased towards the middle of the pack, a separate reinforcing component 4 can be added to the hoisting fixing block 64 between the second and third layers. Simultaneously, the overall height of the three-layer battery pack 5 system is relatively low, and stable fixation can be achieved using only the second-layer enclosure component 3. In summary, for the final three-layer battery pack 5 system, in scenarios where the vibration intensity RMS < 2.88g, support is provided by the second-layer enclosure component 3, and a reinforcing component 4 is added in the middle of the second and third layers to form auxiliary fixation.

[0176] In the second scenario, if the battery pack 5 has three layers, further vibration intensity assessment is required. When the vibration intensity RMS exceeds 2.88g, it falls under the category of extremely strong vibration, necessitating additional auxiliary fixing measures. Specifically, reinforcing components 4 are added to the two lifting and fixing blocks 64 along the X-axis on the sides of the second and third layers. This symmetrical arrangement addresses the issue of center of gravity balance. Furthermore, because the three-layer battery pack 5 has fewer layers and a lower center of gravity, its stability is higher than that of a battery pack with more layers. Therefore, the lifting and fixing blocks 64 in the middle of the sides of the second and third layers do not require additional fixing, thus reducing the overall system weight and assembly time. In summary, the final three-layer battery pack 5 system, in scenarios where the vibration intensity RMS ≥ 2.88g, requires support through the second-layer enclosure component 3, and additional reinforcing components 4 are added to the left and right sides of the second and third layers of the battery pack 6 to provide auxiliary fixation.

[0177] The third scenario: In some embodiments, if the battery pack 5 has four layers and the vibration intensity RMS is less than or equal to 2.88g, then the number of first-layer enclosure components 2 is one, and a second-layer enclosure component 3 is not required. When the vibration intensity RMS < 2.88g, the vibration intensity of the four-layer battery pack 5 system is within the normal range, and the addition of reinforcing components 4 can be appropriately reduced. However, since the center of gravity of the four-layer battery pack 5 system shifts upward, the overall stability decreases, and tilting, torsion, and misalignment are more likely to occur during vibration. Therefore, the fixing positions need to be distributed as widely as possible to cover the sides of the battery pack 5. Specifically, a reinforcing component 4 needs to be set at two different positions along the X-axis on the sides of the third and fourth layers of the battery pack 5 to achieve fixation. At the same time, the four-layer battery pack 5 is significantly taller than the three-layer battery pack 5, so a taller first-layer enclosure component 2 is required for support. In summary, the final four-layer battery pack 5 system requires support from the first-layer enclosure component 2 under vibration intensity RMS < 2.88g, while additional reinforcing components 4 are added to the left and right sides of the third and fourth-layer battery box 6 to form auxiliary fixation.

[0178] The fourth scenario: In some embodiments, if the battery pack 5 has four layers, the fixed support assembly includes a first-layer enclosure component 2 and several reinforcing components 4. A second-layer enclosure component 3 is not required to accommodate the height of the four-layer battery system. For four-layer battery pack 5 systems, the vibration intensity standard needs further evaluation. If the vibration intensity RMS is greater than 2.88g, it falls under the category of extremely strong vibration requirements. Simultaneously, because the center of gravity of the four-layer battery pack 5 is relatively higher, the overall stability of the system will decrease, thus requiring more reinforcement and fixing measures. Specifically, a reinforcing component 4 is added at three different positions along the X-axis on the sides of the third and fourth layer battery pack 5 housings. In summary, for four-layer battery pack 5 systems, in scenarios where the vibration intensity RMS is greater than 2.88g, support is provided by the first-layer enclosure component 2, and reinforcing components 4 are added at the left, center, and right positions on the sides of the third and fourth layer battery housings 6 to form auxiliary fixation.

[0179] Fifth scenario: In some embodiments, such as the battery pack stacking method of the previous battery system, if the battery pack 5 has five layers, then the number of the first layer enclosure component 2 and the second layer enclosure component 3 is one each. Because the five-layer battery pack has more layers and the overall center of gravity is further increased, the system stability will decrease accordingly, and the risk of tilting, twisting, and misalignment during vibration will increase significantly. Therefore, even if the vibration intensity RMS ≤ 2.88g, the highest level of reinforcement and fixation is still required. No additional vibration intensity assessment is needed; all five-layer battery packs 5 require reinforcement components 4 to be added at three different positions along the X direction on the sides of the fourth and fifth layer battery housings 6 to achieve sufficient fixation.

[0180] The above technical solution adopts a split-type fixing and strengthening design. By adjusting the number and installation position of the strengthening components 4, it can achieve joint fixing of single-layer battery pack 5, double-layer battery pack 5 and multi-layer battery pack 5, which can fully meet the needs of battery systems with different numbers of layers and different capacities for reliable support and fixing.

[0181] This disclosure provides a battery pack stacking system for a battery system, including a memory and a processor coupled to the memory, the processor being configured to execute the battery pack 5 stacking of any of the preceding embodiments of the battery system based on instructions stored in the memory.

[0182] Memory may include, for example, system memory, fixed non-volatile storage media, etc. System memory may store, for example, the operating system, application programs, boot loader, and other programs.

[0183] Some embodiments of this disclosure also provide a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the program implements the battery pack stacking method of the battery system in any of the above embodiments.

[0184] The processors described herein may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in alternatives, it may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0185] Storage media can be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Any connection is also properly referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then such coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of media. As used herein, disk and disc include compact discs (CDs), laser discs, optical discs, digital multi-purpose discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, and discs reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0186] Those skilled in the art will understand that the method embodiments of this disclosure can be provided as a method, system, or computer program product. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0187] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to some embodiments of this disclosure. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0188] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0189] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0190] In the description of this disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure.

[0191] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and not to limit them; although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this disclosure or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this disclosure.

Claims

1. A fixing support assembly configured to fix a battery pack (5) of a battery system; the fixing support assembly comprising: The bottom support (1) is configured to provide support; The enclosure assembly (2') is fixedly connected to the bottom support member (1); the enclosure assembly (2') includes a mounting cavity (20'); as well as The reinforcing component (4) is carried by the enclosure component (2') and is detachably fixedly connected to the enclosure component (2'); The battery system includes at least three battery packs (5), with the top two battery packs (5) located outside the enclosure assembly (2') and supported by the enclosure assembly (2'), and the remaining battery packs (5) installed inside the mounting cavity (20'); the reinforcing component (4) is configured to be detachably fixedly connected to the two battery packs (5) located outside the enclosure assembly (2').

2. The fixed support assembly according to claim 1, wherein, The enclosure assembly (2') includes a first layer enclosure assembly (2), which is detachably mounted to the bottom support member (1); or, The fencing assembly (2') includes a second fencing assembly (3), which is detachably mounted to the bottom support (1); or, The enclosure assembly (2') includes a first layer enclosure assembly (2) and a second layer enclosure assembly (3). The first layer enclosure assembly (2) is detachably installed on the bottom support (1), and the second layer enclosure assembly (3) is detachably installed on the top of the first layer enclosure assembly (2). The height of the first layer enclosure assembly (2) is greater than the height of the second layer enclosure assembly (3).

3. The fixed support assembly according to claim 2, wherein the first layer enclosure assembly (2) includes a first mounting cavity (20) for placing two layers of the battery pack (5), and the second layer enclosure assembly (3) includes a second mounting cavity (30) for placing one layer of the battery pack (5).

4. The fixed support assembly according to claim 2 or 3, wherein the number of the second layer enclosure assembly (3) is at least two, and two adjacent second layer enclosure assemblies (3) are fixedly connected in a stacked manner.

5. The fixed support assembly according to claim 3, wherein the first layer enclosure assembly (2) comprises: A plurality of first enclosure panel assemblies (21) surround a first mounting cavity (20) with one end open.

6. The fixed support assembly according to claim 5, wherein each of the first enclosure panel assemblies (21) comprises: The first support plate (211) is detachably fixedly connected to the bottom support member (1); The second support plate (212) is arranged parallel to and at intervals from the first support plate (211); The first central support plate (213) is installed between the first support plate (211) and the second support plate (212), and is detachably fixedly connected to both the first support plate (211) and the second support plate (212); The first support plate (214) is fixedly connected to the first support plate (211), the second support plate (212) and the first middle support plate (213); The first reinforcing plate (215) is located outside the first mounting cavity (20) and is fixedly connected to both the first support plate (211) and the first middle support plate (213); and The second reinforcing plate (216) is located outside the first mounting cavity (20) and is fixedly connected to both the second support plate (212) and the first middle support plate (213).

7. The fixed support assembly according to claim 6, wherein the first support plate (211) is provided with a plurality of first mounting holes (211a); and / or, the second support plate (212) is provided with a plurality of second mounting holes (212a).

8. The fixed support assembly according to any one of claims 5-7, wherein the first layer enclosure assembly (2) further comprises: The first opening frame (217) is installed at the opening of the first mounting cavity (20).

9. The fixed support assembly according to any one of claims 3, 5-8, wherein the second layer enclosure assembly (3) comprises: A plurality of second baffle assemblies (31) surround a second mounting cavity (30) with one end open.

10. The fixed support assembly of claim 9, wherein each of the second enclosure panel assemblies (31) comprises: The third support plate (311) is detachably fixedly connected to the top of the first layer enclosure assembly (2) or the top of another second layer enclosure assembly (3); The fourth support plate (312) is arranged parallel to and at intervals from the third support plate (311); The second central support plate (313) is installed between the third support plate (311) and the fourth support plate (312), and is detachably fixedly connected to both the third support plate (311) and the fourth support plate (312); The second support plate (314) is fixedly connected to the third support plate (311), the fourth support plate (312), and the second central support plate (313); and The third reinforcing plate (315) is located outside the second mounting cavity (30) and is fixedly connected to both the fourth support plate (312) and the second middle support plate (313).

11. The fixed support assembly according to claim 10, wherein the third support plate (311) is provided with a plurality of third mounting holes (311a); and / or, the fourth support plate (312) is provided with a plurality of fourth mounting holes (312a).

12. The fixed support assembly according to claim 10 or 11, wherein the second layer enclosure assembly (3) further comprises: The second opening frame (316) is installed at the opening of the second mounting cavity (30).

13. The fixed support assembly according to any one of claims 2-12, wherein the reinforcing assembly (4) comprises: The first plate (41) includes a first through hole (411); the first plate (41) is detachably fixedly connected to the battery box (6) of the battery pack (5); A second plate (42) is fixedly connected to the middle region of the first plate (41) and is arranged perpendicularly to the first plate (41); the second plate (42) includes a second through hole (421), and the second plate (42) is detachably fixedly connected to the first layer enclosure assembly (2) or the second layer enclosure assembly (3); and The third plate (43) is detachably and fixedly connected to the first plate (41) and the second plate (42), and the third plate (43) is detachably and fixedly connected to the first layer enclosure assembly (2) or the second layer enclosure assembly (3).

14. A battery system, comprising: Multi-layer battery pack (5); as well as The fixed support assembly according to any one of claims 1-13, wherein at least one layer of the battery pack (5) is installed within the fixed support assembly.

15. The battery system according to claim 14, wherein the battery pack (5) has 3 layers, the fixed support assembly includes a second layer enclosure assembly (3) and a reinforcing assembly (4), and does not include the first layer enclosure assembly (2); Alternatively, the battery pack (5) has 4 layers, and the fixed support assembly includes a first layer enclosure assembly (2) and a reinforcing assembly (4), but does not include a second layer enclosure assembly (3); Alternatively, the battery pack (5) may have 5 layers, and the fixed support assembly may include a first layer enclosure assembly (2), a second layer enclosure assembly (3), and a reinforcing assembly (4).

16. An engineering vehicle, comprising: The fixed support assembly according to any one of claims 1-13; Alternatively, it may include the battery system described in claim 14 or 15.

17. A method for stacking a battery pack in a battery system, comprising the following steps: Determine the number of layers of the battery pack (5) to be stacked; the number of layers is three, four or five. The fixed support assembly according to any one of claims 1-13 is determined to be one or more of the first layer enclosure assembly (2) and the second layer enclosure assembly (3) based on the number of layers of the battery pack (5); The number and installation location of the required reinforcing components (4) are determined based on the number of layers of the battery pack (5); The fixed support assembly is assembled, and at least one layer of the battery pack (5) is installed inside the fixed support assembly.

18. The battery pack stacking method of the battery system according to claim 17, wherein if the battery pack (5) has three layers and the vibration intensity RMS is less than or equal to 2.88g, then the number of the second layer enclosure component (3) is one, the number of the reinforcing component (4) is one, and the reinforcing component (4) is located at the center of the length direction of the fixed support component.

19. The battery pack stacking method of the battery system according to claim 17, wherein if the battery pack (5) has three layers and the vibration intensity RMS is greater than 2.88g, then the number of the second layer enclosure component (3) is one, the number of the reinforcing component (4) is two, and the two reinforcing components (4) are centrally symmetrically distributed with respect to the length direction of the fixed support component.

20. The battery pack stacking method of the battery system according to claim 17, wherein if the number of layers of the battery pack (5) is four and the vibration intensity RMS is less than or equal to 2.88g, then the number of the first layer enclosure assembly (2) is one; a plurality of the reinforcing assemblies (4) are provided on the outside of the top two battery packs (5); at least two of the reinforcing assemblies (4) are distributed along the length direction of the fixed support assembly.

21. The battery pack stacking method of the battery system according to claim 17, wherein if the number of layers of the battery pack (5) is four and the vibration intensity RMS is greater than 2.88g, then the number of the first layer enclosure component (2) is one; a plurality of the reinforcing components (4) are provided on the outside of the top two battery packs (5); at least three of the reinforcing components (4) are distributed along the length direction of the fixed support component.

22. The battery pack stacking method of the battery system according to claim 17, wherein if the number of layers of the battery pack (5) is five, the number of the first layer enclosure assembly (2) and the second layer enclosure assembly (3) is one; a plurality of the reinforcing components (4) are provided on the outside of the top two battery packs (5); at least three of the reinforcing components (4) are distributed along the length direction of the fixed support assembly.

23. A battery pack stacking system for a battery system, comprising: Memory; and A processor coupled to the memory, the processor being configured to execute a battery pack stacking method of the battery system as described in any one of claims 17-22 based on instructions stored in the memory.

24. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the battery pack stacking method of the battery system as described in any one of claims 17-22.

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