T-shaped batteries and electric tractors

Abstract

This utility model provides a T-shaped battery and an electric tractor, solving the problem that the existing regular battery structure cannot simultaneously meet the requirements of battery capacity and steering maneuverability of electric tractors. The T-shaped battery includes: several cell modules, which are aligned and arranged in two or more hierarchical components. The hierarchical components are stacked sequentially from top to bottom to form a T-shaped structure, and the number of cell modules in the upper hierarchical component is not less than the number of cell modules in the lower hierarchical component; and a battery casing, which includes a T-shaped bottom shell and a top cover. The T-shaped bottom shell has a T-shaped cavity for accommodating the T-shaped structure, and the top cover seals the T-shaped cavity. The T-shaped structure is disposed within the T-shaped cavity.

Description

Technical Field

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

[0002] In today's booming electric vehicle sector, electric tractors, as an important branch, are gradually emerging. In the design process of electric tractors, the layout and structural design of the battery are key factors determining the overall performance and space utilization efficiency of the vehicle, and their importance cannot be underestimated.

[0003] Currently, the common layout for electric tractors involves mounting the battery in the middle of the two front drive wheels. Traditional battery designs often present a regular rectangular or square structure. However, in practical applications, the working environment of tractors is much more complex than that of ordinary cars. Tractors typically have larger wheels, and due to the often uneven terrain in fields and roadsides, tractors require a much greater steering angle than ordinary cars.

[0004] Due to these specific requirements of tractors, traditional rectangular or square battery structures have revealed some contradictions and limitations in practical applications. On the one hand, if the battery design is too accommodating to large steering angles, the overall width of the battery will inevitably be limited to avoid interference with the battery during steering, resulting in a battery capacity that cannot meet the range requirements of electric tractors under long-term, high-intensity operation. On the other hand, if the focus is on increasing battery capacity to ensure range performance, resulting in a larger battery size, it will inevitably have an adverse effect on the tractor's steering angle range, limiting the tractor's maneuverability and flexibility in narrow or complex terrain. Therefore, to solve this dilemma, it is urgent to develop a new battery structure that can balance battery capacity and the steering angle requirements of electric tractors. 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 a T-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 a T-type battery, comprising:

[0007] A number of battery cell modules are aligned and arranged into two or more hierarchical components. The hierarchical components are stacked from top to bottom into a T-shaped structure, and the number of battery cell modules contained in the upper hierarchical component is not less than the number of battery cell modules contained in the lower hierarchical component.

[0008] The battery box housing includes a T-shaped bottom shell and a battery top cover. The T-shaped bottom shell has a T-shaped cavity for accommodating the T-shaped structure. The battery top cover covers the T-shaped cavity, and the T-shaped structure is disposed within the T-shaped cavity.

[0009] As a more preferred embodiment, the cell module includes a liquid cooling plate and a plurality of cells arranged on the liquid cooling plate. Its advantages are that the cell module includes a liquid cooling plate and cells arranged thereon. The liquid cooling plate can effectively dissipate heat from the cells, ensuring the uniformity and stability of the cell temperature during operation, preventing the cells from degrading in performance or causing safety accidents due to overheating, thus improving the overall performance and safety of the battery. It also helps to improve the charging and discharging efficiency and cycle life of the battery.

[0010] As a more preferred embodiment, the T-shaped structure includes two layers of hierarchical components. The upper layer comprises three battery cell modules arranged side by side, and the lower layer comprises two battery cell modules arranged side by side. The upper layer is stacked on top of the lower layer. Its advantage lies in specifying the exact number of modules in the two-layer hierarchical structure of the T-shaped structure—three in the upper layer and two in the lower layer. This specific design allows the battery to maintain the characteristics of the T-shaped structure while rationally configuring the number of battery cell modules, optimizing battery performance and layout, and meeting the energy requirements and space constraints of specific application scenarios.

[0011] As a more preferred embodiment, the T-shaped structure includes three layers of hierarchical components. The upper layer includes three battery cell modules arranged side by side, the middle layer includes two battery cell modules arranged side by side, and the lower layer includes two battery cell modules arranged side by side. The lower, middle, and upper layers are stacked sequentially. The advantage of this design is that the three-layer hierarchical component design, with three battery cell modules in the upper layer and two in each of the middle and lower layers, further increases the energy storage of the battery. At the same time, by rationally allocating the number of battery cell modules in each layer, the T-shaped structure of the battery is more stable and can better withstand forces from different directions, thus improving the reliability and durability of the battery under complex operating conditions.

[0012] As a more preferred approach, each of the aforementioned hierarchical components includes multiple rows of aligned battery cell modules; its advantage lies in that, by using multiple rows of aligned battery cell modules, the number of battery cell modules can be multiplied while maintaining the T-shaped structure.

[0013] As a more preferred method, the center lines of the multi-layer cell modules stacked into the T-shaped structure coincide with each other. The advantage of this is that the coincidence of the center lines of the multi-layer cell modules 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 T-shaped bottom shell includes multiple hierarchical boxes adapted to the hierarchical components. The upper hierarchical box has the same length dimension as the lower hierarchical box, and the upper hierarchical box has a width dimension not less than that of the lower hierarchical box. The advantage of this design is that the hierarchical boxes of the T-shaped bottom shell have the same length dimension and the upper one is not smaller than the lower one in the width direction. This design not only ensures the compatibility of each hierarchical component in the length direction, but also provides sufficient support and space for the upper 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 shell.

[0015] As a more preferred approach, the T-shaped bottom shell is also provided with multiple reinforcing rods. One end of each reinforcing rod is fixed to the bottom of the upper-level housing, and the other end is fixed to the outer frame of the lower-level housing. The beneficial effect is that the reinforcing rods further enhance the structural strength of the T-shaped bottom shell. By fixing the upper-level housing to the outer side of the lower-level housing, a more robust overall structure is formed, which improves the load-bearing capacity of the battery box shell when subjected to external impacts and internal battery component pressure, effectively protecting the internal cell modules and extending the battery's lifespan.

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

[0017] As a more preferred embodiment, the electric tractor further includes two drive wheels and a steering crossbar assembly connecting the two drive wheels; the T-shaped battery is mounted on the steering crossbar assembly; when the two drive wheels turn via the steering crossbar assembly, the bottom of the T-shaped battery provides greater clearance, preventing interference between the drive wheels and the bottom of the T-shaped battery during large-angle turns, thus balancing a larger battery capacity and a larger tractor steering angle. Its advantages lie in the fact that the T-shaped battery is mounted on the steering crossbar assembly, and its bottom design provides greater clearance, ensuring that the drive wheels do not interfere with the bottom of the battery during large-angle turns, guaranteeing the maneuverability and flexibility of the electric tractor, while also meeting the requirements for carrying a large-capacity battery. This achieves a good balance between battery capacity and tractor steering performance, improving the practicality and adaptability of the electric tractor.

[0018] As described above, the T-shaped battery and electric tractor of this invention have the following beneficial effects: The T-shaped battery of this invention arranges multiple cell modules into a hierarchical assembly and stacks them into a T-shaped structure. This utilizes the upper space to accommodate more cell modules while leaving sufficient clearance in the lower layer, ensuring ample movement space for moving parts. Simultaneously, this structural design efficiently utilizes the internal space of the battery box, improving space utilization and thus increasing the battery's energy density. Furthermore, the outer shell composed of the T-shaped bottom shell and the battery top cover provides excellent protection for the T-shaped structure, extending the battery's lifespan.

[0019] This utility model applies a T-shaped battery to the electric tractor. The structural characteristics of the T-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 T-shaped battery allows for a larger steering angle of the drive wheels, 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 T-shaped battery and electric tractor of this invention, through the T-shaped structure, better adapt to the body layout of the electric tractor, taking into account both the larger steering angle of the drive wheels and the larger battery capacity, and solving 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. Attached Figure Description

[0021] Figure 1 The diagram shown is a structural schematic of the T-type 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 illustrates another embodiment of the T-type battery of this utility model.

[0026] Component designation explanation

[0027] 1 T-type battery

[0028] 11. Battery cell module

[0029] 111 Liquid Cooling Plate

[0030] 112 battery cell

[0031] 12 Battery Box Casing

[0032] 121 T-shaped bottom shell

[0033] 121a tiered enclosure

[0034] 122 Battery Top Cover

[0035] 123 Reinforcing bar

[0036] 2 drive wheels

[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 a T-type battery 1, comprising:

[0043] A plurality of battery cell modules 11 are aligned and arranged into two or more hierarchical components. The hierarchical components are stacked from top to bottom into a T-shaped structure, and the number of battery cell modules 11 contained in the upper hierarchical component is not less than the number of battery cell modules 11 contained in the lower hierarchical component.

[0044] The battery box housing 12 includes a T-shaped bottom shell 121 and a battery top cover 122. The T-shaped bottom shell 121 is provided with a T-shaped receiving cavity for accommodating the T-shaped structure. The battery top cover 122 covers the T-shaped receiving cavity, and the T-shaped structure is disposed in the T-shaped receiving cavity.

[0045] To better illustrate the T-shaped battery 1 of this invention, the following specific application will be used as an example: The T-shaped battery 1 of this invention arranges multiple cell modules 11 into a hierarchical assembly and stacks them into a T-shaped structure. This utilizes the upper space to accommodate more cell modules 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 casing 12, improving space utilization and thus increasing the battery's energy density. Furthermore, the outer casing composed of the T-shaped bottom shell 121 and the battery top cover 122 provides excellent protection for the T-shaped structure, extending the battery's lifespan.

[0046] In some possible embodiments of this utility model, such as Figure 1As shown, the T-shaped structure includes two layers of hierarchical components. The upper layer includes three battery cell modules 11 arranged side by side, and the lower layer includes two battery cell modules 11 arranged side by side. The upper layer is stacked on top of the lower layer. Its advantage lies in specifying the specific number of modules in the two-layer hierarchical structure of the T-shaped structure: three in the upper layer and two in the lower layer, both arranged in two rows. This specific design allows the battery to maintain the characteristics of the T-shaped structure while rationally configuring the number of battery cell modules 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 T-shaped structure includes three layers of hierarchical components. The upper layer includes three battery cell modules 11 arranged side by side, the middle layer includes two battery cell modules 11 arranged side by side, and the lower layer includes two battery cell modules 11 arranged side by side. The lower, middle, and upper layers are stacked sequentially. The beneficial effect is that the three-layer hierarchical component design, with three battery cell modules in the upper layer and two in each of the middle and lower layers, further increases the energy storage of the battery. At the same time, by rationally allocating the number of battery cell modules 11 in each layer, the T-shaped structure of the battery is more stable and can better withstand forces from different directions, thus improving the reliability and durability of the battery under complex working conditions.

[0048] In some possible embodiments of this utility model, such as Figure 1 As shown, the T-shaped structure may further include four layers of hierarchical components. The first layer of hierarchical components includes three battery cell modules 11 arranged side by side. The second, third, and fourth layers of hierarchical components each include two battery cell modules 11 arranged side by side. The hierarchical components of the fourth, third, second, and first layers are stacked sequentially. In this embodiment, the first layer of hierarchical components may also include four battery cell modules 11 or five battery cell modules 11, etc. Similarly, the second, third, and fourth layers of hierarchical components each also include three battery cell modules 11. The specific arrangement can be adjusted according to the spatial layout.

[0049] In some possible embodiments of this utility model, each of the layer components includes multiple rows of aligned battery cell modules 11. The advantage is that by using multiple rows of aligned battery cell modules 11, the number of battery cell modules 11 can be multiplied while maintaining the T-shaped structure. For example, in a T-shaped structure including two layers of layer components, the upper layer of layer components includes six battery cell modules 11 arranged in two rows, and the lower layer of layer components includes four battery cell modules 11 arranged in two rows.

[0050] In some possible embodiments of this utility model, such as Figure 1 As shown, the center lines of the multi-layer cell modules 11 stacked into the T-shaped structure coincide with each other. The beneficial effect is that the coincidence of the center lines of the multi-layer cell modules 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 T-shaped bottom shell 121 includes multiple hierarchical boxes 121a adapted to the hierarchical components. The upper hierarchical box 121a has the same length dimension as the lower hierarchical box 121a, and the upper hierarchical box 121a has a width dimension that is not smaller than that of the lower hierarchical box 121a. The beneficial effect is that the hierarchical boxes 121a of the T-shaped bottom shell 121 have the same length dimension, and the upper one is not smaller than the lower one in the width direction. This design not only ensures the compatibility of each hierarchical component in the length direction, but also provides sufficient support and space for the upper component in the width direction, which enhances the stability and strength of the battery structure, and also facilitates the production and manufacturing of the battery box shell 12.

[0052] In some possible embodiments of this utility model, such as Figure 1 As shown, the T-shaped bottom shell 121 is also provided with a plurality of reinforcing rods 123. One end of the reinforcing rod 123 is fixed to the bottom of the upper layer box 121a, and the other end is fixed to the outer frame of the lower layer box 121a. Its beneficial effect is that the setting of the reinforcing rods 123 further enhances the structural strength of the T-shaped bottom shell 121. By fixing the upper layer box 121a to the outer side of the lower layer box 121a, a more robust overall structure is formed, which improves the load-bearing capacity of the battery box shell 12 when subjected to external impact and internal battery component pressure, effectively protects the internal cell module 11, and extends the battery's service life.

[0053] In some possible embodiments of this utility model, such as Figure 1 As shown, the battery cell module 11 includes a liquid cooling plate 111 and a plurality of battery cells 112 arranged on the liquid cooling plate 111. Its beneficial effect is that the battery cell module 11 includes a liquid cooling plate 111 and battery cells 112 arranged thereon. The liquid cooling 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 or causing safety accidents due to overheating, 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 address the aforementioned problems, this utility model also provides an electric tractor, such as... Figure 2 , Figure 3 as well as Figure 4 As shown, it includes: the aforementioned T-shaped battery 1.

[0055] To better illustrate the electric tractor of this invention, the following specific application will be used as an example: The electric tractor of this invention utilizes a T-shaped battery 1. The structural features of the T-shaped battery 1 allow it to better adapt to the tractor's body layout. The smaller space occupied by the lower layer of the T-shaped battery 1 allows for a larger steering angle of the drive wheels 2, while the upper layer provides a larger battery capacity, thereby extending the electric tractor's range. Simultaneously, the battery's stability and safety contribute to improving the overall performance and reliability of the electric tractor, promoting the electrification of agricultural machinery. It can be seen that the T-shaped battery and electric tractor of this invention, through their T-shaped structure, better adapt to the tractor's body layout, balancing a larger steering angle of the drive wheels 2 with a larger battery capacity. This solves the problem in the prior art where a regular battery structure cannot simultaneously accommodate both battery capacity and steering maneuverability in electric tractors. More specifically, in this embodiment, as... Figure 2 As shown, when the electric tractor is traveling on a flat road and maintaining a straight line, the drive wheel 2 does not wobble left or right; Figure 3 As shown, when the electric tractor is on the left side of the road or turning left, the drive wheel 2 swings to the left, at which point the drive wheel 2 is higher on the left and lower on the right; as Figure 4 As shown, when the electric tractor is on the right side of the road or turning to the right, the drive wheel 2 swings to the right, at which time the right drive wheel 2 is higher than the left.

[0056] In some possible embodiments of this utility model, such as Figure 2 , Figure 3 as well as Figure 4 As shown, the electric tractor also includes two drive wheels 2 and a steering crossbar assembly 3 connecting the two drive wheels 2; the T-shaped battery 1 is mounted on the steering crossbar assembly 3; when the two drive wheels 2 turn through the steering crossbar assembly 3, the bottom of the T-shaped battery 1 provides a larger clearance space, avoiding interference between the drive wheels 2 and the bottom of the T-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 the T-shaped battery 1 is mounted on the steering crossbar assembly 3, and its bottom design provides a larger clearance space, so that the drive wheels 2 will not interfere with the bottom of the battery when making large-angle turns, ensuring the maneuverability and flexibility of the electric tractor, while also taking into account the need for large-capacity battery installation, 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 drive wheel 2 is a front drive wheel 2, which is more compatible with the components of traditional tractors. The T-shaped battery 1 is set 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 T-shaped battery and electric tractor of this invention have the following beneficial effects:

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

[0060] T-shaped structure design: By arranging the cell modules 11 into hierarchical components and stacking them into a T-shaped structure, more cell modules 11 are arranged in the upper layer, and space is left in the lower layer to avoid them, 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 modules 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 multi-layer cell module 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 rod 123: The T-shaped bottom shell 121 is equipped with a reinforcing rod 123, which connects the upper and lower layer boxes 121a, enhances the structural strength, improves the load-bearing capacity, and protects the internal battery cell module 11.

[0065] 3. Battery performance optimization:

[0066] Cell module 11 quantity configuration: Specifies the number of cell modules 11 for different layers of components to optimize performance and layout and meet the needs of different application scenarios.

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

[0068] 4. Adaptability and application scenario expansion:

[0069] Application in electric tractors: The T-shaped battery 1 is used in electric tractors. The lower layer occupies less space to allow the drive wheels 2 to turn at large angles, while the upper layer provides a large-capacity battery to extend the driving range. This solves the problem that a regular battery structure cannot balance battery capacity and steering maneuverability.

[0070] Steering crossbar assembly 3 layout: T-shaped battery 1 is mounted on steering crossbar assembly 3. The bottom design provides more clearance to avoid interference between the drive wheel 2 and the bottom of the battery when the drive wheel 2 turns at a large angle, thus balancing battery capacity and tractor steering performance.

[0071] 5. Flexible design and scalability:

[0072] The number of layered components can be variable: The T-shaped structure can be designed as a layered component with different numbers of layers, such as two, three or four layers. The number of battery cell modules 11 in each layer can be adjusted according to the spatial layout. For example, in a four-layer structure, the first layer can contain 6, 8 or 10 battery cell modules 11, and the other layers can contain 4 or 6, to meet different energy requirements and space constraints.

[0073] This utility model's T-shaped battery 1, through innovative hierarchical component arrangement and T-shaped structure 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 rods 123 enhance the battery's reliability and durability under complex working conditions. Its application in electric tractors fully demonstrates the advantages of the T-shaped structure, satisfying the large-angle steering requirements of the drive wheels 2 while providing a large-capacity battery to extend the driving range, thus promoting the electrification of agricultural machinery. Overall, this utility model solves the problem in existing battery structures that cannot simultaneously meet the needs of electric tractor battery capacity and steering maneuverability, providing a highly efficient, stable, and adaptable battery solution.

[0074] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0075] 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. A T-type battery (1), characterized in that, include: A number of battery cell modules (11) are aligned and arranged into two or more hierarchical components. The hierarchical components are stacked from top to bottom into a T-shaped structure, and the number of battery cell modules (11) contained in the upper hierarchical component is not less than the number of battery cell modules (11) contained in the lower hierarchical component. The battery box housing (12) includes a T-shaped bottom shell (121) and a battery top cover (122). The T-shaped bottom shell (121) has a T-shaped cavity for accommodating the T-shaped structure. The battery top cover (122) covers the T-shaped cavity. The T-shaped structure is disposed in the T-shaped cavity.

2. The T-type battery (1) according to claim 1, characterized in that: The battery module (11) includes a liquid cooling plate (111) and a plurality of battery cells (112) arranged on the liquid cooling plate (111).

3. The T-type battery (1) according to claim 1, characterized in that: The T-shaped structure includes two layers of hierarchical components. The upper layer of hierarchical components includes three battery cell modules (11) arranged side by side, and the lower layer of hierarchical components includes two battery cell modules (11) arranged side by side. The upper layer of hierarchical components is stacked on top of the lower layer of hierarchical components.

4. The T-type battery (1) according to claim 1, characterized in that: The T-shaped structure includes three layers of hierarchical components. The upper layer includes three battery cell modules (11) arranged side by side, the middle layer includes two battery cell modules (11) arranged side by side, and the lower layer includes two battery cell modules (11) arranged side by side. The lower layer, the middle layer, and the upper layer are stacked sequentially.

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

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

7. The T-type battery (1) according to claim 1, characterized in that: The T-shaped bottom shell (121) includes a plurality of hierarchical boxes (121a) adapted to the hierarchical components. The upper hierarchical box (121a) has the same length dimension as the lower hierarchical box (121a), and the upper hierarchical box (121a) has a width dimension not less than that of the lower hierarchical box (121a).

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

9. An electric tractor, characterized in that, include: The T-type 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 drive wheels (2) and a steering crossbar assembly (3) connecting the two drive wheels (2); the T-shaped battery (1) is mounted on the steering crossbar assembly (3).

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