Inverted cone battery and electric tractor

Abstract

The utility model provides a kind of inverted cone battery and electric tractor, solve the problem that battery structure of the structure of prior art regular cannot give consideration to electric tractor battery capacity and steering mobility, wherein the inverted cone battery, comprising: a plurality of battery cell components, a plurality of battery cell components are arranged into two or more hierarchical components, the hierarchical component is sequentially pressed joint stacked into inverted cone structure from top to bottom, and the number of battery cell components contained in hierarchical component sequentially decreases according to the order from top to bottom;Battery box cover shell, the battery box cover shell includes inverted cone bottom shell and battery box top shell, the inverted cone bottom shell is provided with inverted cone containing cavity containing the inverted cone structure, the battery box top shell covers the inverted cone containing cavity, and the inverted cone structure is arranged in the inverted cone containing cavity.

Description

Technical Field

[0001] This utility model relates to the field of electric agricultural machinery technology, and in particular to an inverted cone-shaped battery and an electric tractor. Background Technology

[0002] In the rapidly developing electric vehicle industry, electric tractors, as an important sub-segment, are increasingly becoming a key development direction for the electrification of agricultural machinery. Within the overall design system of electric tractors, the layout and structure of the power battery are core elements affecting the vehicle's overall performance and space utilization efficiency; their rational design plays a crucial role in the vehicle's range and handling performance.

[0003] Currently, mainstream electric tractor battery layouts typically place the battery pack in the middle area between the two front wheels, and traditional battery structures often adopt a regular rectangular or square geometry. However, compared to ordinary road vehicles, tractors operate in significantly different environments: on the one hand, their wheels are usually larger to adapt to complex terrain; on the other hand, unpaved road conditions in fields require tractors to have a wider range of steering angles to meet the need for flexible steering in confined spaces.

[0004] The aforementioned special application scenarios expose significant adaptability issues for traditional, regular-shaped battery structures. Specifically, when battery design prioritizes large steering angle requirements, the lateral dimensions of the battery pack are strictly limited to avoid interference between the wheels and battery components during steering. This directly results in the battery capacity failing to meet the range requirements of electric tractors during prolonged, high-intensity operation. Conversely, if the battery volume is increased to improve range, the movement space of the steering system will inevitably be compressed, limiting the steering angle and severely impacting the tractor's maneuverability and passability in complex terrain. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an inverted cone-shaped battery and an electric tractor, so as to solve the problem that the regular battery structure in the prior art cannot take into account both the battery capacity and steering maneuverability of the electric tractor.

[0006] To solve the above-mentioned technical problems, this utility model provides an inverted cone-shaped battery, comprising:

[0007] A number of battery cell components are aligned and arranged into two or more hierarchical components. The hierarchical components are stacked in sequence from top to bottom to form an inverted cone structure, and the number of battery cell components contained in the hierarchical components decreases sequentially from top to bottom.

[0008] A battery box cover, comprising an inverted conical bottom shell and a battery box top shell, wherein an inverted conical cavity is provided inside the inverted conical bottom shell to accommodate the inverted conical structure, and the battery box top shell covers the inverted conical cavity, wherein the inverted conical structure is disposed within the inverted conical cavity.

[0009] As a more preferred embodiment, the battery cell assembly includes a water-cooled plate and a plurality of battery cells arranged on the water-cooled plate.

[0010] As a more preferred embodiment, the inverted cone structure comprises three layers of hierarchical components. The upper layer comprises three battery cell components arranged side by side, the middle layer comprises two battery cell components arranged side by side, and the lower layer comprises one battery cell component. The lower, middle, and upper layers are stacked in a staggered manner with interlocking seams. Its advantage lies in specifying the exact number of battery cell components in the three-layer hierarchical structure: three in the upper layer, two in the middle layer, and one in the lower layer. This specific design allows the battery to maintain the characteristics of the inverted cone structure while rationally configuring the number of battery cell components, optimizing battery performance and layout, and meeting the energy requirements and space constraints of specific application scenarios.

[0011] As a more preferred embodiment, the inverted cone structure includes two layers of hierarchical components. The upper layer includes three battery cell components arranged side by side, and the lower layer includes two battery cell components arranged side by side. The upper layer is stacked on top of the lower layer with staggered seams. The advantage of this design is that the two-layer hierarchical component design, with three battery cell components in the upper layer and two in the lower layer, simplifies the battery structure and reduces production costs while ensuring the stability of the inverted cone structure. At the same time, it can meet the energy requirements of general application scenarios, thus improving the practicality and economy of the battery.

[0012] As a more preferred approach, each of the aforementioned hierarchical components includes multiple rows of aligned battery cell components, thereby increasing the number of battery cell components while satisfying the inverted conical structure stacking requirement.

[0013] As a more preferred method, the center lines of the multi-layer battery cell assembly stacked into the inverted conical structure coincide with each other. The advantage of this method is that the coincidence of the center lines of the multi-layer battery cell assembly ensures the symmetry and balance of the battery during the stacking process, avoids structural stress concentration and safety hazards caused by uneven mass distribution, and helps to improve the overall stability and service life of the battery.

[0014] As a more preferred approach, the inverted conical bottom shell includes multiple layered shells adapted to the layered components. The upper layered shell has the same length dimension as the lower layered shell, and the upper layered shell has a width dimension not smaller than the lower layered shell. The advantage of this design is that the layered shells of the inverted conical bottom shell have the same length dimension, and the upper layer is not smaller than the lower layer in the width direction. This design ensures the compatibility of each layered component in the length direction, while providing sufficient support and space for the upper layered components in the width direction, enhancing the stability and strength of the battery structure, and also facilitating the production and manufacturing of the battery box cover.

[0015] As a more preferred approach, the inverted conical bottom shell is further provided with multiple reinforcing ribs. One end of each reinforcing rib is fixed to the bottom of the upper layer shell, and the other end is fixed to the outer frame of the lower layer shell. The beneficial effect is that the reinforcing ribs further enhance the structural strength of the inverted conical bottom shell. By fixing the upper layer shell to the outer frame of the lower layer shell, a more robust overall structure is formed, which improves the load-bearing capacity of the battery box cover when subjected to external impacts and internal battery component pressure, effectively protects the internal battery cell components, and extends the battery's service life.

[0016] To solve the above problems, this utility model also provides an electric tractor, including the above-mentioned inverted cone-shaped battery.

[0017] As a more preferred embodiment, the electric tractor also includes two wheels and a steering crossbar assembly connecting the two wheels. The inverted cone-shaped battery is mounted on the steering crossbar assembly. When the two wheels turn through the steering crossbar assembly, the bottom of the inverted cone-shaped battery provides greater clearance, preventing interference between the wheels and the bottom of the battery during large-angle turns. This balances a larger battery capacity with a larger tractor steering angle. The beneficial effects are that it ensures the maneuverability and flexibility of the electric tractor while also meeting the requirements for mounting a large-capacity battery, achieving a good balance between battery capacity and tractor steering performance, and improving the practicality and adaptability of the electric tractor.

[0018] As described above, the inverted cone-shaped battery and electric tractor of this invention have the following beneficial effects: The inverted cone-shaped battery of this invention arranges multiple battery cell components into a hierarchical assembly and stacks them into an inverted cone structure. This utilizes the upper space to accommodate more battery cell components while leaving sufficient clearance in the lower layer, ensuring adequate movement space for moving parts. Simultaneously, this structural design efficiently utilizes the internal space of the battery box casing, improving space utilization and thus increasing the battery's energy density. Furthermore, the outer shell composed of the inverted cone-shaped bottom shell and the battery box top shell provides excellent protection for the inverted cone structure, extending the battery's lifespan. Moreover, the upper and lower layers of battery cell components are stacked with interlocking seams, creating a "dog-tooth" interlocking structure. This design avoids stress concentration in the vertical direction. Through the mutual support of the interlayer battery cell components, external impact forces are dispersed to multiple battery cell components through the interlocking interfaces, reducing the risk of single-point damage.

[0019] This utility model applies an inverted cone-shaped battery to an electric tractor. The structural characteristics of the inverted cone-shaped battery allow it to better adapt to the vehicle layout of the electric tractor. The smaller space occupied by the lower layer of the inverted cone-shaped battery allows for a larger steering angle of the rotor, while the upper layer provides a larger battery capacity, thereby extending the driving range of the electric tractor. At the same time, the stability and safety of the battery also help improve the overall performance and reliability of the electric tractor, promoting the development of agricultural machinery towards electrification.

[0020] The inverted cone-shaped battery and electric tractor of this utility model are better adapted to the body layout of the electric tractor through the inverted cone structure, which takes into account the larger steering angle of the wheel and the larger battery capacity. It solves the problem that the regular battery structure in the prior art cannot take into account the battery capacity and steering maneuverability of the electric tractor. Furthermore, the stress diffusion efficiency of the cell assembly is improved by the seam stacking method, thereby improving the overall stability and safety. Attached Figure Description

[0021] Figure 1 The diagram shown is a structural schematic of the inverted cone-shaped battery of this utility model.

[0022] Figure 2 The diagram shown is a structural schematic of the electric tractor of this utility model.

[0023] Figure 3 The diagram shown is a schematic of the left yaw of the electric tractor of this utility model;

[0024] Figure 4 The diagram shown is a schematic of the right yaw of the electric tractor of this utility model;

[0025] Figure 5 The diagram shown is a schematic representation of another embodiment of the electric tractor of this utility model.

[0026] Component designation explanation

[0027] 1. Inverted cone-shaped battery

[0028] 11. Battery Cell Assembly

[0029] 111 Water-cooled plate

[0030] 112 battery cell

[0031] 12 Battery Box Cover

[0032] 121 Inverted conical bottom shell

[0033] 121a Layered Shell

[0034] 122 Battery Box Top Shell

[0035] 123 Reinforced ridge

[0036] 2. Rotary wheel

[0037] 3. Steering crossbar assembly Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0039] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" 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 utility model according to the specific circumstances.

[0041] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0042] like Figure 1 As shown, this utility model provides an inverted cone-shaped battery 1, comprising:

[0043] A plurality of battery cell assemblies 11 are aligned and arranged into two or more hierarchical assemblies. The hierarchical assemblies are stacked in sequence from top to bottom to form an inverted cone structure, and the number of battery cell assemblies 11 contained in the hierarchical assemblies decreases sequentially from top to bottom.

[0044] The battery box cover 12 includes an inverted conical bottom shell 121 and a battery box top shell 122. The inverted conical bottom shell 121 is provided with an inverted conical cavity for accommodating the inverted conical structure. The battery box top shell 122 covers the inverted conical cavity, and the inverted conical structure is disposed within the inverted conical cavity.

[0045] To better illustrate the inverted conical battery 1 of this invention, the following specific application will be used to describe it in detail: The inverted conical battery 1 of this invention arranges multiple battery cell components 11 into a hierarchical assembly and stacks them into an inverted conical structure. This utilizes the upper space to accommodate more battery cell components 11, while leaving sufficient clearance in the lower layer to ensure adequate movement space for moving parts. Simultaneously, this structural design efficiently utilizes the internal space of the battery box casing 12, improving space utilization and thus increasing the battery's energy density. Furthermore, the outer shell composed of the inverted conical bottom shell 121 and the battery box top shell 122 provides excellent protection for the inverted conical structure, extending the battery's lifespan. Moreover, the upper and lower layers of battery cell components 11 are stacked with interlocking seams, creating a staggered "dog-tooth" interlocking structure. This design avoids stress concentration in the vertical direction. Through the mutual support of the interlayer battery cell components 11, external impact forces are dispersed to multiple battery cell components 11 through the interlocking interface, reducing the risk of single-point damage.

[0046] In some possible embodiments of this utility model, such as Figure 1 As shown, the inverted cone structure includes three layers of hierarchical components. The upper layer includes three battery cell components 11 arranged side by side, the middle layer includes two battery cell components 11 arranged side by side, and the lower layer includes one battery cell component 11. The lower, middle, and upper layers are stacked in a staggered manner with interlocking seams. The advantage of this design is that it specifies the number of battery cell components 11 in the three-layer hierarchical structure of the inverted cone structure: three in the upper layer, two in the middle layer, and one in the lower layer, all arranged in two rows. This specific design allows the battery to maintain the characteristics of the inverted cone structure while rationally configuring the number of battery cell components 11, optimizing the battery's performance and layout, and meeting the energy requirements and space constraints of specific application scenarios.

[0047] In some possible embodiments of this utility model, such as Figure 5 As shown, the inverted cone structure includes two layers of hierarchical components. The upper layer includes three battery cell components 11 arranged side by side, and the lower layer includes two battery cell components 11 arranged side by side. The upper layer is stacked on top of the lower layer with staggered seams. The advantage of this design is that the two-layer hierarchical component design, with three battery cell components 11 in the upper layer and two in the lower layer, simplifies the battery structure and reduces production costs while ensuring the stability of the inverted cone structure. At the same time, it can meet the energy requirements of general application scenarios, thus improving the practicality and economy of the battery.

[0048] In some possible embodiments of this utility model, the inverted cone structure may further include four layers of hierarchical components. The first layer of hierarchical components includes four battery cell components 11. The second, third, and fourth layers of hierarchical components each include three battery cell components 11 arranged side by side, two battery cell components 11, and one battery cell component 11. The hierarchical components of the fourth, third, second, and first layers are stacked in a staggered manner with interlocking seams. In this embodiment, the inverted cone structure may also include five, six, or even more layers, which can be adjusted according to the spatial layout and the size of the battery cell components 11.

[0049] In some possible embodiments of this utility model, each of the hierarchical components includes multiple rows of aligned battery cell components 11, which expands the number of battery cell components while satisfying the inverted cone structure stacking; such as a structure including two hierarchical components, wherein the upper hierarchical component includes six battery cell components 11 and the lower hierarchical component includes four battery cell components 11.

[0050] In some possible embodiments of this utility model, such as Figure 1 As shown, the center lines of the multi-layer battery cell assembly 11 stacked into the inverted cone structure coincide with each other. The beneficial effect is that the coincidence of the center lines of the multi-layer battery cell assembly 11 ensures the symmetry and balance of the battery during the stacking process, avoids structural stress concentration and safety hazards caused by uneven mass distribution, and helps to improve the overall stability and service life of the battery.

[0051] In some possible embodiments of this utility model, such as Figure 1 As shown, the inverted conical bottom shell 121 includes multiple layered shells 121a adapted to the layered components. The upper layered shell 121a has the same length dimension as the lower layered shell 121a, and the upper layered shell 121a has a width dimension not smaller than the lower layered shell 121a. The beneficial effect is that the layered shells 121a of the inverted conical bottom shell 121 have the same length dimension, and the upper layer is not smaller than the lower layer in the width direction. This design not only ensures the compatibility of each layered component in the length direction, but also provides sufficient support and space for the upper layered component in the width direction, enhancing the stability and strength of the battery structure, and also facilitating the production and manufacturing of the battery box cover 12.

[0052] In some possible embodiments of this utility model, such as Figure 1As shown, the inverted conical bottom shell 121 is also provided with a plurality of reinforcing ribs 123. One end of the reinforcing rib 123 is fixed to the bottom of the upper layer shell 121a, and the other end is fixed to the outer frame of the lower layer shell 121a. Its beneficial effect is that the setting of the reinforcing ribs 123 further enhances the structural strength of the inverted conical bottom shell 121. By fixing the upper layer shell 121a and the outer frame of the lower layer shell 121a together, a more robust overall structure is formed, which improves the load-bearing capacity of the battery box cover 12 when subjected to external impact and internal battery component pressure, effectively protects the internal battery cell assembly 11, and extends the battery's service life.

[0053] In some possible embodiments of this utility model, such as Figure 1 As shown, Figure 1 As shown, the battery cell assembly 11 includes a water-cooled plate 111 and a plurality of battery cells 112 arranged on the water-cooled plate 111. Its beneficial effect is that the battery cell assembly 11 includes a water-cooled plate 111 and battery cells 112 arranged thereon. The water-cooled plate 111 can effectively dissipate heat from the battery cells 112, ensuring the uniformity and stability of the temperature of the battery cells 112 during operation, preventing the performance of the battery cells 112 from deteriorating due to overheating or causing safety accidents, thereby improving the overall performance and safety of the battery, and also helping to improve the charging and discharging efficiency and cycle life of the battery.

[0054] To solve the above problems, such as Figure 2 , Figure 3 as well as Figure 4 As shown, this utility model also provides an electric tractor, including: the above-mentioned inverted cone-shaped battery 1.

[0055] To better introduce the electric tractor of this utility model, the following specific application will be used to describe it in detail: The electric tractor of this utility model uses an inverted cone-shaped battery 1. The structural characteristics of the inverted cone-shaped battery 1 allow it to better adapt to the vehicle layout of the electric tractor. The smaller space occupied by the lower layer of the inverted cone-shaped battery 1 allows for a larger steering angle of the rotor 2, while the upper layer provides a larger battery capacity, thereby extending the driving range of the electric tractor. At the same time, the stability and safety of the battery also help improve the overall performance and reliability of the electric tractor, promoting the development of agricultural machinery towards electrification. It can be seen that the inverted cone-shaped battery and electric tractor of this utility model, through the inverted cone structure, better adapt to the vehicle layout of the electric tractor, balancing a larger steering angle of the rotor 2 and a larger battery capacity. This solves the problem that the existing regular battery structure cannot balance the battery capacity and steering maneuverability of the electric tractor. Furthermore, through the method of pressing and stacking, the stress diffusion efficiency of the cell assembly 11 is improved, enhancing the overall stability and safety. More specifically, in this embodiment, as... Figure 2As shown, when the electric tractor is traveling on a flat road and maintaining a straight line, the impeller 2 does not sway left or right; Figure 3 As shown, when the electric tractor is on the left side of the road or turning left, the rotating wheel 2 swings to the left, at which point the left side of the rotating wheel 2 is higher than the right side; as Figure 4 As shown, when the electric tractor is on the right side of the road or turning to the right, the rotating wheel 2 swings to the right, at which time the right side of the rotating wheel 2 is higher than the left side.

[0056] In some possible embodiments of this utility model, such as Figure 2 As shown, the electric tractor also includes two rollers 2 and a steering crossbar assembly 3 connecting the two rollers 2; the inverted cone-shaped battery 1 is mounted on the steering crossbar assembly 3. When the two rollers 2 turn through the steering crossbar assembly 3, the bottom of the inverted cone-shaped battery 1 provides a larger clearance space, avoiding interference between the rollers 2 and the bottom of the inverted cone-shaped battery 1 when making large-angle turns, thus balancing a larger battery capacity and a larger tractor steering angle. Its beneficial effect is that it ensures the maneuverability and flexibility of the electric tractor, while also meeting the requirements for mounting a large-capacity battery, achieving a good balance between battery capacity and tractor steering performance, and improving the practicality and adaptability of the electric tractor.

[0057] In some possible embodiments of this utility model, the rotary wheel 2 is the front wheel, which is more compatible with the components of traditional tractors. The inverted cone-shaped battery 1 is placed at the position of the front engine of a traditional fuel tractor, which makes the structure more stable and easier for drivers of traditional fuel tractors to learn and accept.

[0058] As described above, the inverted cone-shaped battery and the electric tractor of this invention have the following beneficial effects:

[0059] 1. Space utilization and energy density enhancement:

[0060] Inverted cone structure design: By arranging the battery cell assembly 11 into a hierarchical assembly and stacking it into an inverted cone structure, more battery cell assemblies 11 are arranged in the upper layer, and space is left in the lower layer to avoid gaps, which makes efficient use of the internal space of the battery box and improves space utilization and energy density.

[0061] Hierarchical component arrangement: Each level of component includes two rows of aligned cell components 11. The orderly arrangement facilitates manufacturing and assembly, and improves space utilization and performance consistency.

[0062] 2. Structural stability and safety:

[0063] Centerline overlap design: The centerlines of the multilayer cell assembly 11 overlap to ensure stacking symmetry and balance, avoid structural stress concentration and safety hazards caused by uneven mass distribution, and improve stability and service life.

[0064] Reinforcing rib 123: The inverted conical bottom shell 121 is provided with reinforcing rib 123, which connects the upper and lower layer shells 121a, enhances the structural strength, improves the load-bearing capacity, and protects the internal battery cell assembly 11.

[0065] 3. Battery performance optimization:

[0066] Configuration of the number of battery cell modules 11: Specify the number of battery cell modules 11 for different layers and levels, reasonably configure the number of battery cell modules 11, optimize performance and layout, and meet the needs of different application scenarios.

[0067] Wiring convenience: The connection ends of the battery cell assembly 11 are aligned and facing outwards, which simplifies the wiring process, improves wiring efficiency, and facilitates maintenance.

[0068] Water-cooled plate 111 design: The cell assembly 11 includes a water-cooled plate 111 and cell 112 arranged thereon. The water-cooled plate 111 can effectively dissipate heat, ensure the temperature uniformity and stability of cell 112, prevent overheating, and improve battery performance and safety.

[0069] 4. Adaptability and application scenario expansion:

[0070] Application in electric tractors: The inverted cone-shaped battery 1 is used in electric tractors. The lower layer occupies less space to allow the wheel 2 to turn at a large angle, while the upper layer provides a large-capacity battery to extend the driving range, solving the problem that a regular-structured battery cannot balance battery capacity and steering maneuverability.

[0071] Steering crossbar assembly 3 layout: The inverted cone-shaped battery 1 is mounted on the steering crossbar assembly 3. The bottom design provides more clearance to avoid interference between the bottom of the battery and the wheel 2 when it turns at a large angle, thus balancing battery capacity and tractor steering performance.

[0072] 5. Flexible design and scalability:

[0073] The number of tiered components can be variable: the inverted cone structure can be designed as a tiered component with different numbers of layers, such as two, three or four layers. The number of battery cell components 11 in each tier can be adjusted according to the spatial layout. For example, in a four-layer structure, the first layer can contain 4 battery cell components 11, the second layer 3, the third layer 2, and the fourth layer 1, to meet different energy requirements and space constraints.

[0074] 6. Stress Dispersion and Reliability:

[0075] Seam-stacked design: The upper and lower layers of battery cell components 11 are stacked through seams, and the gaps between the layers are staggered to form a "dog tooth" structure, which avoids stress concentration in the vertical direction. Through the mutual support of the battery cell components 11 between the layers, the external impact force is distributed to multiple battery cell components 11, reducing the risk of single-point damage.

[0076] This invention's inverted cone-shaped battery 1, through innovative hierarchical component arrangement and inverted cone structural design, achieves efficient utilization of the battery box's internal space, significantly improving energy density and space utilization while ensuring structural stability and safety. The symmetrical and balanced structural design and the reinforcement measures of the reinforcing ridges 123 enhance the battery's reliability and durability under complex working conditions. Its application in electric tractors fully demonstrates the advantages of the inverted cone structure, satisfying the large-angle steering requirements of the rotor 2 while providing a large-capacity battery to extend the driving range, thus promoting the electrification of agricultural machinery. Overall, this invention solves the problem in existing technologies where battery structures cannot simultaneously accommodate the battery capacity and steering maneuverability of electric tractors, providing a highly efficient, stable, and adaptable battery solution.

[0077] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0078] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An inverted cone-shaped battery (1), characterized in that, include: A number of battery cell components (11) are aligned and arranged into two or more hierarchical components. The hierarchical components are stacked in sequence from top to bottom to form an inverted cone structure, and the number of battery cell components (11) contained in the hierarchical components decreases in sequence from top to bottom. The battery box cover (12) includes an inverted conical bottom shell (121) and a battery box top shell (122). The inverted conical bottom shell (121) is provided with an inverted conical cavity for accommodating the inverted conical structure. The battery box top shell (122) covers the inverted conical cavity. The inverted conical structure is disposed in the inverted conical cavity.

2. The inverted cone-shaped battery (1) according to claim 1, characterized in that: The battery cell assembly (11) includes a water-cooled plate (111) and a plurality of battery cells (112) arranged on the water-cooled plate (111).

3. The inverted cone-shaped battery (1) according to claim 1, characterized in that: The inverted cone-shaped structure includes three layers of hierarchical components. The upper layer of hierarchical components includes three battery cell components (11) arranged side by side. The middle layer of hierarchical components includes two battery cell components (11) arranged side by side. The lower layer of hierarchical components includes one battery cell component (11). The lower layer of hierarchical components, the middle layer of hierarchical components and the upper layer of hierarchical components are stacked in a staggered manner with interlocking seams.

4. The inverted cone-shaped battery (1) according to claim 1, characterized in that: The inverted cone structure includes two layers of the hierarchical components. The upper layer of the hierarchical components includes three battery cell components (11) arranged side by side, and the lower layer of the hierarchical components includes two battery cell components (11) arranged side by side. The upper layer of the hierarchical components are stacked on top of the lower layer of the hierarchical components with staggered seams.

5. The inverted cone-shaped battery (1) according to claim 1, characterized in that: Each of the aforementioned hierarchical components includes multiple rows of aligned cell assemblies (11).

6. The inverted cone-shaped battery (1) according to claim 1, characterized in that: The centerlines of the multilayer battery cell assembly (11) stacked into the inverted cone structure coincide with each other.

7. The inverted cone-shaped battery (1) according to claim 1, characterized in that: The inverted conical bottom shell (121) includes a plurality of hierarchical shells (121a) adapted to the hierarchical assembly. The upper hierarchical shell (121a) has the same length dimension as the lower hierarchical shell (121a), and the upper hierarchical shell (121a) has a width dimension not less than that of the lower hierarchical shell (121a).

8. The inverted cone-shaped battery (1) according to claim 7, characterized in that: The inverted conical bottom shell (121) is also provided with a plurality of reinforcing ribs (123). One end of the reinforcing rib (123) is fixed to the bottom of the upper layer shell (121a), and the other end is fixed to the outer frame of the lower layer shell (121a).

9. An electric tractor, characterized in that, include: The inverted cone-shaped battery (1) according to any one of claims 1 to 8.

10. The electric tractor according to claim 9, characterized in that: The electric tractor also includes two wheels (2) and a steering crossbar assembly (3) connecting the two wheels (2); the inverted cone-shaped battery (1) is mounted on the steering crossbar assembly (3).

Images