Asymmetric side-by-side battery arrangement and pure electric sanitation vehicle

Abstract

This application provides an asymmetric side-mounted battery arrangement structure and a pure electric sanitation vehicle, relating to the field of pure electric sanitation vehicle technology. The asymmetric side-mounted battery arrangement structure includes three battery frames and a connecting crossbeam. The first and second battery frames are disposed on one side of the chassis frame, and the third battery frame is fixed to the other side of the chassis frame. The bottom of the first battery frame is connected to the bottom of the third battery frame via the connecting crossbeam. The second battery frame is fixedly connected to a longitudinal beam on one side of the chassis frame, and the third battery frame is fixedly connected to a longitudinal beam on the other side of the chassis frame. The connecting crossbeam is also fixedly connected to the bottom of the chassis frame. Therefore, this application can improve the utilization rate of the superstructure space and enhance operational efficiency and vehicle performance.

Description

Technical Field

[0001] This application relates to the field of pure electric sanitation vehicle technology, and in particular to an asymmetric side-mounted battery arrangement structure and a pure electric sanitation vehicle. Background Technology

[0002] In the field of commercial pure electric vehicles, the capacity and layout of the power battery are key factors affecting the vehicle's range and performance.

[0003] In the existing technology, some models use a rear-mounted structure to place the power battery pack behind the cab, resulting in low utilization of the chassis superstructure space; other solutions use a side-mounted power battery frame, but these are mostly symmetrically distributed on the outside of the frame.

[0004] However, due to the wide variety and complex layout of the superstructures on sanitation vehicle chassis, the requirements for the utilization rate of the superstructure space adapted to the chassis are extremely high. The existing symmetrical side-mounted layout scheme is difficult to meet the utilization requirements of the available space on both sides of the vehicle frame for sanitation vehicles of various types, such as cleaning, kitchen waste disposal, and compression, thus limiting the utilization efficiency of the superstructure space. Utility Model Content

[0005] The purpose of this application is to provide an asymmetric side-mounted battery arrangement structure and a pure electric sanitation vehicle to solve the technical problem of low utilization rate of the upper structure space in the prior art.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0007] In a first aspect, embodiments of this application provide an asymmetric side-mounted battery arrangement structure, which includes: three battery frames and connecting beams;

[0008] The first and second battery frames are disposed on one side of the chassis frame, and the third battery frame is fixed on the other side of the chassis frame. The bottom of the first battery frame is also connected to the bottom of the third battery frame via the connecting beam.

[0009] The second battery frame is fixedly connected to a longitudinal beam on one side of the chassis frame, the third battery frame is fixedly connected to a longitudinal beam on the other side of the chassis frame, and the connecting crossbeam is also fixedly connected to the bottom of the chassis frame.

[0010] Optionally, each battery frame includes: a frame body and two layers of support brackets;

[0011] The two support brackets are detachably installed in parallel within the frame body, and both support brackets are used to support the power battery.

[0012] Optionally, each battery frame further includes: a plurality of first support arms;

[0013] The plurality of first support arms are longitudinally arranged on the preset mounting surface of the frame body and are fixedly connected to the two layers of support brackets;

[0014] Both the second battery frame and the third battery frame are fixedly connected to the longitudinal beams on the corresponding side of the chassis frame via the first support arm.

[0015] Optionally, the second battery frame further includes: a second support arm disposed between two adjacent first support arms; the second support arm is fixedly connected to two layers of support brackets within the second battery frame;

[0016] The second support arm is also used for fixed connection with the longitudinal beam on the corresponding side of the chassis frame.

[0017] Optionally, each battery frame further includes two diagonal bracing beams; the two diagonal bracing beams are disposed on a first outer side of the frame body away from the preset mounting surface, and the two diagonal bracing beams are used to fix the two layers of support brackets on the first outer side.

[0018] Optionally, each battery frame further includes a bottom protective plate that is fixedly disposed at the bottom of the frame body.

[0019] Optionally, each battery frame further includes a maintenance cover that is detachably disposed on a second outer side of the frame body.

[0020] Optionally, each battery frame further includes a battery protective cover disposed on the sides of the frame body other than the second outer side.

[0021] Optionally, the first battery frame and the chassis frame are further provided with a partition.

[0022] Secondly, embodiments of this application provide a pure electric sanitation vehicle, including: a vehicle body, and an asymmetric side-mounted battery arrangement structure as described in any of the first aspects above, disposed on the vehicle body.

[0023] The asymmetric side-mounted battery arrangement structure and pure electric sanitation vehicle provided in this application can be composed of three battery frames and connecting crossbeams to achieve an optimized spatial layout of the power battery. Among the three battery frames, the first and second battery frames are set on one side of the chassis frame, and the third battery frame is fixed on the other side of the chassis frame. By adjusting the weight distribution ratio of the two battery frames (such as the sum of the battery capacities of the first and second frames being different from the capacity of the third frame), the center of gravity of the vehicle can be balanced and driving stability can be improved. This design is particularly suitable for pure electric sanitation vehicles with heavy loads on one side (such as models that collect garbage on one side), offsetting the shift in the center of gravity during operation. The bottom of the first battery frame is connected to the bottom of the third battery frame via a connecting beam. The second battery frame is fixedly connected to a longitudinal beam on one side of the chassis frame, and the third battery frame is fixedly connected to a longitudinal beam on the other side of the chassis frame. The connecting beam is also fixedly connected to the bottom of the chassis frame, transferring the force from both battery frames to the chassis frame through the connecting beam, distributing the load, avoiding localized stress concentration, improving the torsional rigidity of the entire vehicle, reducing chassis deformation during driving, and thus extending the battery system's lifespan. Therefore, this application, through its asymmetrical side-mounted battery arrangement structure, allows pure electric sanitation vehicles to maximize the utilization of the superstructure space while ensuring range, improving operational efficiency and vehicle performance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 1 ;

[0026] Figure 2 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 2 ;

[0027] Figure 3 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 3 ;

[0028] Figure 4 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 4 ;

[0029] Figure 5This is a schematic diagram of a battery frame structure provided in an embodiment of this application;

[0030] Figure 6 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 5 ;

[0031] Figure 7 This is a schematic diagram of the structure of a partition provided in an embodiment of this application;

[0032] Figure 8 This is a structural schematic diagram of a pure electric sanitation vehicle provided in an embodiment of this application. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of this application. Unless otherwise specified, the following embodiments and features can be combined with each other. To better understand the solutions provided by the embodiments of this application, the following detailed description, in conjunction with the accompanying drawings, describes an asymmetric side-mounted battery arrangement structure and a pure electric sanitation vehicle provided by the embodiments of this application.

[0040] Figure 1 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 1 .like Figure 1 As shown, the asymmetric side-mounted battery arrangement structure 200 includes: three battery frames 100 and a connecting beam 210.

[0041] In this design, the first battery frame 110 and the second battery frame 120 are positioned on one side of the chassis frame, while the third battery frame 130 is fixed to the other side of the chassis frame, forming an asymmetrical distribution. This asymmetrical layout provides flexible installation space for the superstructure equipment (such as cleaning systems, compression devices, and food waste collection boxes) of the pure electric sanitation vehicle, avoiding the space limitations imposed on specific superstructures by traditional symmetrical arrangements. Furthermore, the size and position of each frame can be adjusted according to the needs of the superstructure; for example, a larger battery frame can be placed on the opposite side to reserve more space for the superstructure.

[0042] in, Figure 2 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 2 .like Figure 2 As shown, the bottom of the first battery frame 110 is also rigidly connected to the bottom of the third battery frame 130 via a connecting beam 210 to form a stable support structure spanning the vehicle frame.

[0043] Continue to refer to Figure 1The second battery frame 120 is fixedly connected to the longitudinal beam on one side of the chassis frame, and the third battery frame 130 is fixedly connected to the longitudinal beam on the other side of the chassis frame to ensure a firm connection between the battery frame and the chassis frame; the connecting crossbeam 210 is also fixedly connected to the bottom of the chassis frame to further enhance the overall rigidity of the vehicle chassis.

[0044] For example, Figure 3 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 3 .like Figure 3 As shown, the three battery frames 100 can be independently disassembled and replaced, facilitating maintenance and upgrades. The standardized design of the connecting beam 210 supports adaptation to different vehicle models, reducing development costs.

[0045] It should be noted that, Figure 4 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 4 .like Figure 4 As shown, there is a preset distance B between the third battery frame 130 and the chassis frame, for example, the preset distance B is 20CM.

[0046] The asymmetric side-mounted battery arrangement structure provided in this application consists of three battery frames and connecting crossbeams to achieve optimized spatial layout of the power battery. The first and second battery frames are positioned on one side of the chassis frame, while the third battery frame is fixed to the other side. This balances the vehicle's center of gravity and improves driving stability by adjusting the weight distribution of the two battery frames (e.g., the sum of the battery capacities of the first and second frames differs from the capacity of the third frame). It is particularly suitable for pure electric sanitation vehicles with heavy unilateral loads (such as vehicles that collect garbage on one side), counteracting center of gravity shifts during operation. The bottom of the first battery frame is connected to the bottom of the third battery frame via a connecting crossbeam. The second battery frame is fixedly connected to a longitudinal beam on one side of the chassis frame, and the third battery frame is fixedly connected to a longitudinal beam on the other side of the chassis frame. The connecting crossbeam is also fixedly connected to the bottom of the chassis frame, transferring the force from the two battery frames to the chassis frame through the connecting crossbeam. This disperses the load, avoids localized stress concentration, improves the overall torsional rigidity of the vehicle, reduces chassis deformation during driving, and thus extends the battery system's lifespan. Therefore, this application, through an asymmetric side-mounted battery arrangement structure, enables pure electric sanitation vehicles to maximize the utilization of the superstructure space while ensuring range, thereby improving operational efficiency and vehicle performance.

[0047] Figure 5 This is a schematic diagram of a battery frame provided in an embodiment of this application. Figure 5 As shown, each battery frame 100 includes: a frame body 101 and two layers of support brackets 102.

[0048] The two-layer support bracket 102 is detachably installed in parallel within the frame body 101 to form two independent battery installation spaces. The two-layer support bracket 102 can be connected to the frame body 101 by bolts or quick-release structure, which facilitates later maintenance, battery replacement or bracket layout adjustment. Both layers of support bracket 102 are used to support the power battery to ensure that the power battery is stable and reliable during vehicle operation.

[0049] The main frame 101, serving as the foundation structure, is typically constructed from high-strength steel through bending and welding to form a stable, rigid frame that provides protection and an installation interface for the internal support brackets and power batteries. The double-layer design of the double-layer support bracket 102 expands the battery placement space to two layers without increasing the frame's lateral dimensions, thereby increasing the battery capacity per unit projected area. This design is suitable for vehicles sensitive to chassis width, such as pure electric sanitation vehicles, preventing the vehicle from becoming too wide due to battery placement. Furthermore, the detachable bracket allows for individual maintenance or replacement of battery modules on a single layer without disassembling the entire frame, reducing maintenance costs and time. For example, the upper bracket can be prioritized for battery packs requiring frequent replacement or maintenance (such as fast-charging modules), while the lower layer houses large-capacity base batteries.

[0050] The asymmetric side-mounted battery arrangement structure provided in this application features a modular design for each battery frame, consisting of a main frame body and two layers of detachable support brackets. These two support brackets are detachably and parallelly installed within the main frame body, and both layers are used to support the power battery. Thus, this application achieves breakthroughs in space utilization, maintainability, and performance optimization through the double-layer detachable support brackets, particularly meeting the flexibility and durability requirements of pure electric sanitation vehicles for their battery systems.

[0051] Continue to refer to Figure 5 Each battery frame 100 also includes a plurality of first support arms 103.

[0052] Multiple first support arms 103 are longitudinally (in the direction of travel) positioned on the preset mounting surface of the frame body 101 and are fixedly connected to the two-layer support brackets 102; the multiple first support arms 103 and the support brackets 102 are connected by welding or bolts to form a rigid force transmission path.

[0053] Both the second battery frame 120 and the third battery frame 130 are fixedly connected to the longitudinal beams on the corresponding sides of the chassis frame via the first support arm 103, achieving side mounting. The first support arm 103 is typically connected to the longitudinal beam using bolts, facilitating disassembly and adjustment.

[0054] The first support arm 103 is made of high-strength steel (such as 600L) or aluminum alloy, which balances lightweight and load-bearing capacity.

[0055] The asymmetric side-mounted battery arrangement structure provided in this application includes a battery frame that can also consist of multiple first support arms. These first support arms are longitudinally positioned on a pre-set mounting surface of the frame body and fixedly connected to a support bracket. The multiple longitudinally distributed support arms evenly distribute the battery weight to the longitudinal beams of the chassis, avoiding stress concentration caused by single-point force application. The second and third battery frames are both fixedly connected to the corresponding longitudinal beams on the chassis frame via the first support arms. The connection between the support arms and the longitudinal beams enhances the lateral stiffness of the chassis and reduces lateral deformation during vehicle cornering. Thus, through the longitudinal arrangement and modular connection of the first support arms, this application achieves efficient load transfer, convenient maintenance, and structural optimization between the battery frame and the chassis, providing crucial support for the reliability and durability of pure electric sanitation vehicles.

[0056] Continue to refer to Figure 5 The second battery frame 120 also includes a second support arm 104 disposed between two adjacent first support arms 103.

[0057] Specifically, due to the unilateral arrangement of the second battery frame 120, the second support arm 104 provides additional lateral support to counteract the torsional tendency caused by asymmetrical loads. Furthermore, the second support arm 104 directly connects the support bracket 102 to the vehicle frame longitudinal beam, shortening the lever arm length, reducing bracket bending deformation, and improving overall rigidity.

[0058] The second support arm 104 is fixedly connected to the two layers of support brackets 102 within the second battery frame 120; the second support arm 104 and the two layers of support brackets 102 within the third battery frame 130 can be fixedly connected by welding or bolts. The second support arm 104 is also used to fixally connect to the longitudinal beam on the corresponding side of the chassis frame.

[0059] It should be noted that the material of the second support arm 104 is the same as that of the first support arm 103 (high-strength steel or aluminum alloy), but the thickness or cross-sectional shape can be adjusted according to the stress requirements.

[0060] The asymmetric side-mounted battery arrangement structure provided in this application further includes a second battery frame composed of a second support arm disposed between two adjacent first support arms. The second support arm is fixedly connected to a support bracket within the second battery frame. The second support arm is also used to fixably connect to a longitudinal beam on the corresponding side of the chassis frame. Thus, through the staggered arrangement of the second support arms, this application achieves a comprehensive improvement in structural stability, rigidity, and safety of the second battery frame under an asymmetric layout, providing crucial support for performance optimization of pure electric sanitation vehicles.

[0061] Continue to refer to Figure 5 Each battery frame 100 also includes two diagonal bracing beams 105.

[0062] Two diagonal bracing beams 105 are located on the first outer side of the frame body 101 away from the preset mounting surface, i.e., away from the outer side of the frame longitudinal beam. The two diagonal bracing beams 105 are used to fix the two layers of support brackets 102 on the first outer side so that when the vehicle turns or brakes in an emergency, the diagonal bracing beams 105 transmit the torsional force of the upper support bracket 102 to the lower layer, and then distribute it to the frame through the support arm to avoid local stress concentration.

[0063] The two ends of the diagonal brace 105 are rigidly connected to the outer edges of the two-layer support brackets 102 by bolts or welding, forming a diagonal support structure. The connection point between the diagonal brace 105 and the support bracket 102 is usually located in the reinforcing ribs or load-bearing areas of the bracket to ensure effective force transmission.

[0064] The diagonal bracing beam 105 is made of the same material as the main frame 101, namely high-strength 600L steel, ensuring rigidity while maintaining lightweight construction. The inclination angle of the diagonal bracing beam 105 is typically designed to be 45° or -60° to maximize resistance to shear and bending loads. The diagonal bracing beam 105 uses a detachable connection, which does not affect the independent disassembly and replacement of the support bracket 102. During maintenance, it can be separated simply by loosening the bolts, and the preload of the diagonal bracing beam can be adjusted to compensate for structural slack after long-term use.

[0065] The asymmetric side-mounted battery arrangement structure provided in this application includes two diagonal bracing beams in each battery frame. These two beams are located on the first outer side of the frame body, away from the pre-set mounting surface. The two beams securely connect the two layers of support brackets on the first outer side, forming a triangular stable structure. This significantly improves the frame's bending stiffness in the vertical direction (Z-direction), reduces the impact of vertical vibrations caused by uneven road surfaces on the battery module during vehicle operation, and lowers the risk of weld fatigue. Therefore, through diagonal reinforcement with diagonal bracing beams, this application achieves a comprehensive improvement in structural stiffness, vibration resistance, and safety of the battery frame while maintaining its modular advantages, making it particularly suitable for long-term reliable operation under complex conditions in pure electric sanitation vehicles.

[0066] Continue to refer to Figure 5 as well as Figure 4 Each battery frame 100 also includes a bottom protective plate 106 fixedly installed at the bottom of the frame body 101 to completely cover the bottom of the frame body 101 and the area directly below the power battery module, forming a closed bottom protection space with the edges slightly extending beyond the sides of the frame body to ensure no blind spots.

[0067] The bottom guard plate 106 is rigidly connected to the bottom crossbeam or support bracket of the frame body 101 by mounting bolts. The bolts are evenly distributed (usually spaced 30-50cm apart), which ensures both firm fixation and easy disassembly and maintenance.

[0068] The bottom guard plate 106 can be made of high-strength steel 600L or wear-resistant composite material, and the thickness is designed according to the protection requirements, such as 3-5mm.

[0069] Due to the complex operating environment of pure electric sanitation vehicles (such as landfills and potholes on municipal roads), the underbody protection plate 106 can directly block the impact of road debris and protrusions (such as manhole cover edges and curbs) on the bottom of the power battery, avoiding the risk of leakage, fluid leakage, or thermal runaway caused by physical damage to the battery casing, bottom cells, or electrical interfaces (such as charging interfaces and coolant pipes). For muddy or flooded roads, it can reduce the direct scouring of mud and sand on the bottom of the battery, lowering the probability of moisture damage to the cells or corrosion of electrical components. It is especially suitable for sanitation vehicles that frequently operate on unpaved roads (such as urban villages and construction site perimeters), or for compactor garbage trucks and cleaning trucks that need to traverse areas with gravel and construction waste. The protection provided by the underbody protection plate 106 can significantly extend the service life of the power battery and reduce the frequency of downtime due to bottom damage.

[0070] Figure 6 A schematic diagram of an asymmetric side-mounted battery arrangement structure provided in this application embodiment. Figure 5 .like Figure 6 As shown, and continue to refer to Figure 5 Each battery frame 100 also includes a detachable access cover 107 mounted on the second outer side of the frame body 101. It can be connected to the frame body 101 via quick-release bolts, clips, or hinge mechanisms for quick disassembly and installation.

[0071] The second outer side is usually the outer facade opposite the longitudinal beam of the frame, or the side that is easy for the operator to access.

[0072] Because of the access cover 107, it is not necessary to disassemble the entire battery frame or other components; the internal critical components can be accessed directly by opening the access cover 107. Furthermore, independent access covers can be provided for different functional areas (such as the electrical area and the liquid cooling area), allowing specific areas to be opened individually, avoiding the exposure of irrelevant components and reducing the risk of misoperation.

[0073] Through the innovative design of the inspection cover 107, the battery frame maintains high protection performance while significantly improving maintainability and full life cycle economy, meeting the actual needs of sanitation vehicles for high-intensity and high-frequency operations.

[0074] Continue to refer to the above. Figure 6 Each battery frame 100 also includes a battery protective cover 108 disposed on the sides of the frame body 101 other than the second outer side.

[0075] Secured to the edge of the frame body 101 with bolts or clips, and sealed with sealing strips at the joints to ensure waterproofing and dustproofing. Some areas can adopt a segmented design (such as the top protective cover being divided into front, middle, and rear sections) for easy partial disassembly or replacement.

[0076] The battery protective cover 108 can be made of high-strength, lightweight materials, such as aluminum alloy, carbon fiber composites, or high-strength engineering plastics. The surface is designed with reinforcing ribs or a wave-shaped structure to enhance impact resistance; the edges are rolled or flanged to prevent sharp edges from scratching personnel.

[0077] Since pure electric sanitation vehicles may encounter flying stones, branches, or other objects during operation, the protective cover can effectively absorb energy and protect the battery module from direct impact. At the same time, it effectively blocks rainwater, dust, and mud from entering, making it especially suitable for models such as high-pressure cleaners and road sweepers that operate in wet or dusty environments.

[0078] Through the innovative design of the battery protective cover 108, the reliability, durability, and integration convenience of the battery system of pure electric sanitation vehicles under complex working conditions are significantly improved, reducing the total life cycle cost.

[0079] Figure 7 This is a schematic diagram of a partition provided in an embodiment of this application. Figure 7 As shown, the first battery frame 110 and the chassis frame are also provided with a partition 109.

[0080] Among them, the partition 109 is a separation and buffer component set between the third battery frame 130 and the chassis frame, similar to Figure 4 The placement area at point B in the diagram. The thickness of the partition 109 is the same as the preset distance B between the third battery frame 130 and the chassis frame, which can be 20CM.

[0081] During operation, pure electric sanitation vehicles are prone to trapping debris, branches, mud, and other foreign objects in the gap between the frame and battery frame. Long-term accumulation can lead to jamming and wear between the frame and the chassis (such as loosening of the bolts connecting the support arm and the longitudinal beam). The partition 109 completely seals this gap, preventing foreign objects from entering and reducing the risk of mechanical wear. Tests show that it can reduce malfunctions caused by foreign object jamming. Simultaneously, it also balances the vehicle's forces and center of gravity.

[0082] Figure 8 This is a schematic diagram of the structure of a pure electric sanitation vehicle provided in an embodiment of this application. As shown in the figure, the pure electric sanitation vehicle 300 includes at least: a vehicle body 310, and an asymmetric side-mounted battery arrangement structure 200 disposed on the vehicle body 310.

[0083] Traditional pure electric sanitation vehicles employ either a rear-mounted battery arrangement (behind the cab) or a symmetrical side-mounted arrangement (two frames on each side of the chassis). The former occupies front-end space of the superstructure (e.g., the compression mechanism of a garbage truck cannot be moved forward), while the latter limits the size of the equipment on one side of the superstructure (e.g., the width of the water tank in a cleaning truck is limited). However, the asymmetrical side-mounted battery arrangement structure 200 of this application, by eliminating one battery frame on each side, frees up space on one side of the superstructure, allowing for direct adaptation of the superstructure of sanitation vehicles of various types, such as cleaning, kitchen waste disposal, and compression, without requiring modifications to the superstructure design to accommodate the battery space. Furthermore, since pure electric sanitation vehicles often operate in landfills, muddy roads, or narrow streets, the protective system of the asymmetrical side-mounted structure (underbody protection plate for scratches, protective cover for impacts, and partition for foreign objects) can reduce the failure rate of the battery system.

[0084] The pure electric sanitation vehicle provided in this application can be composed of at least a vehicle body and an asymmetric side-mounted battery arrangement structure mounted on the vehicle body. Therefore, this application enables pure electric sanitation vehicles to overcome the bottleneck of the trade-off between space and range, making them particularly suitable for refined operations in densely populated cities (such as street cleaning and kitchen waste collection). While improving operational efficiency, its zero-emission characteristics contribute to urban environmental upgrades, aligning with the development direction of new energy sanitation equipment under the dual-carbon policy.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An asymmetric side-mounted battery arrangement structure, characterized in that, The asymmetric side-mounted battery arrangement structure includes: three battery frames and connecting beams; The first and second battery frames are disposed on one side of the chassis frame, and the third battery frame is fixed on the other side of the chassis frame. The bottom of the first battery frame is also connected to the bottom of the third battery frame via the connecting beam. The second battery frame is fixedly connected to a longitudinal beam on one side of the chassis frame, the third battery frame is fixedly connected to a longitudinal beam on the other side of the chassis frame, and the connecting crossbeam is also fixedly connected to the bottom of the chassis frame.

2. The asymmetric side-mounted battery arrangement structure according to claim 1, characterized in that, Each battery frame includes: a frame body and two layers of support brackets; The two support brackets are detachably installed in parallel within the frame body, and both support brackets are used to support the power battery.

3. The asymmetric side-mounted battery arrangement structure according to claim 2, characterized in that, Each battery frame also includes: a plurality of first support arms; The plurality of first support arms are longitudinally arranged on the preset mounting surface of the frame body and are fixedly connected to the two layers of support brackets; Both the second battery frame and the third battery frame are fixedly connected to the longitudinal beams on the corresponding side of the chassis frame via the first support arm.

4. The asymmetric side-mounted battery arrangement structure according to claim 3, characterized in that, The second battery frame further includes: a second support arm disposed between two adjacent first support arms; the second support arm is fixedly connected to two layers of support brackets within the second battery frame; The second support arm is also used for fixed connection with the longitudinal beam on the corresponding side of the chassis frame.

5. The asymmetric side-mounted battery arrangement structure according to claim 2, characterized in that, Each battery frame further includes two diagonal bracing beams; the two diagonal bracing beams are disposed on a first outer side of the frame body away from the preset mounting surface, and the two diagonal bracing beams are used to fix the two layers of support brackets on the first outer side.

6. The asymmetric side-mounted battery arrangement structure according to claim 2, characterized in that, Each battery frame also includes a bottom protective plate that is fixedly mounted at the bottom of the frame body.

7. The asymmetric side-mounted battery arrangement structure according to claim 2, characterized in that, Each battery frame also includes a detachable access cover plate disposed on a second outer side of the frame body.

8. The asymmetric side-mounted battery arrangement structure according to claim 7, characterized in that, Each battery frame further includes a battery protective cover disposed on the sides of the frame body other than the second outer side.

9. The asymmetric side-mounted battery arrangement structure according to claim 1, characterized in that, The first battery frame and the chassis frame are also provided with a partition.

10. A pure electric sanitation vehicle, characterized in that, include: The vehicle body, and the asymmetric side-mounted battery arrangement structure according to any one of claims 1 to 9 disposed on the vehicle body.

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