Battery base and single battery

Abstract

The utility model discloses a battery bottom support and monomer battery, and the battery bottom support includes introduction part and confluence part, and the introduction part is equipped with first main hole and auxiliary hole, and the confluence part is connected with one side of introduction part, and the confluence part is equipped with the passage and second main hole that intercommunication, and first main hole and second main hole are communicated, and auxiliary hole and passage are communicated. The structure of the utility model effectively solves the technical problems of the traditional monomer battery under abnormal state, such as the unsmooth release of excrement, the difficult timely release of pressure, the easy casing rupture and even explosion.

Description

Technical Field

[0001] This utility model relates to the technical field of battery bases, and more particularly to a battery base and a single battery cell. Background Technology

[0002] With the increasing popularity of new energy vehicles, energy storage systems, and portable electronic devices, individual batteries are playing an increasingly important role in energy storage and power supply. However, during the charging and discharging process and under extreme operating conditions, individual batteries are prone to abnormal increases in internal pressure due to internal short circuits, overcharging, over-discharging, or external impacts, which can lead to the generation of gaseous or liquid emissions.

[0003] To ensure battery safety, common technical measures include installing explosion-proof valves or vents on the battery casing to release internal pressure in case of abnormal pressure, preventing casing rupture or even explosion. However, most existing single-cell batteries use a single path for waste discharge, with a limited number of discharge channels and a relatively simple structure. This makes it difficult to discharge waste in a timely and effective manner under abnormal conditions, and the casing is prone to expansion, damage, or even safety accidents due to blockage or poor discharge.

[0004] Furthermore, while some battery structures have attempted to incorporate explosion-proof membranes or optimize explosion-proof valve designs to improve safety, insufficient consideration has been given to the guidance and diversion of excrement, hindering multi-path evacuation and limiting emission efficiency, thus preserving safety hazards. At the same time, some existing improved structures exhibit poor compatibility with battery cells or casings, increasing manufacturing and assembly difficulties and impacting the widespread application of these batteries. Utility Model Content

[0005] To achieve the above objectives, the present invention provides a solution as follows: the battery base includes an inlet portion and a junction portion; the inlet portion has a first main hole and a secondary hole; the junction portion is connected to one side of the inlet portion, and the junction portion has a channel and a second main hole that are interconnected, the first main hole and the second main hole are connected, and the secondary hole and the channel are connected.

[0006] Optionally, the thickness of the inlet section is A, and the thickness of the manifold section is B, where 0.4A≤B≤0.6A.

[0007] Optionally, the thickness of the inlet section is A, and the thickness of the manifold section is B, where 2 mm ≤ A + B ≤ 5 mm.

[0008] Optionally, the diameter of the secondary holes gradually increases from the inlet to the confluence. There are multiple secondary holes, which are spaced apart on the inlet.

[0009] Optionally, the diameter of the first main hole is smaller than the diameter of the second main hole, and the projection of the first main hole falls into the projection of the second main hole in the thickness direction of the confluence.

[0010] Optionally, the confluence section includes a vertical plate and a bottom plate. The vertical plate is arranged around the inlet section, and the bottom plate and the vertical plate are connected to form a channel. The bottom plate has a second main hole.

[0011] Optionally, the distance between the base plate and the inlet gradually increases from both ends along the length of the base plate to the second main hole.

[0012] Optionally, the confluence section also includes a first support plate, which is disposed in the channel and extends along the width direction of the confluence section. One end of the first support plate is connected to the vertical plate, and the other end extends to the second main hole.

[0013] Optionally, the manifold also includes a second support plate, which is disposed in the channel and extends along the length of the manifold. One end of the second support plate is connected to the vertical plate, and the other end extends to the second main hole.

[0014] To achieve the above objectives, the present invention provides a solution as follows: a single battery includes a top cover assembly, a battery cell, a housing, an explosion-proof valve, and any one of the above-mentioned battery base supports. The battery base supports are disposed at the bottom of the housing, and an explosion-proof hole corresponding to the second main hole is opened at the bottom of the housing. The explosion-proof valve covers the explosion-proof hole. The battery cell is disposed in the housing and connected to the battery base supports. The top cover assembly is connected to the housing.

[0015] The beneficial effects of this utility model are as follows: The structure described in this embodiment effectively solves the technical problems of poor waste release, difficulty in timely pressure release, and easy shell rupture or even explosion caused by traditional single-cell batteries under abnormal conditions. Specifically, by designing a first main hole, a second main hole, a secondary hole, and a channel in the battery base, multi-path evacuation of waste is achieved, greatly improving discharge efficiency. When the internal pressure of the battery rises abnormally, the first main hole, the channel, and the secondary hole work together to ensure that waste can quickly converge to the second main hole regardless of which path it takes, and be discharged in time through the explosion-proof valve, preventing safety risks caused by blockage of a single path. The multi-path evacuation design also effectively disperses the internal pressure of the shell, reducing the probability of shell rupture. In addition, this structure has good compatibility with existing battery cells and shells. The partitioned design of the base not only meets the support requirements of the battery cells, but also ensures the waste drainage function, without affecting the normal assembly and use of the battery. The explosion-proof valve ensures that it will only open when the internal pressure is abnormal, maintaining good battery sealing under normal conditions, preventing the intrusion of external impurities, and further improving battery safety and service life. In summary, the single-cell battery structure provided in this embodiment, through a reasonable multi-path emission design, significantly improves the safety and reliability of the battery under abnormal conditions, and effectively achieves the technical effects of rapid pressure release and efficient evacuation of excrement. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the battery base provided in an embodiment of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of the battery base provided in an embodiment of the present invention from a second perspective. Figure 3 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the cross-section along the middle III-III direction; Figure 4 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the cross-section along the IV-IV direction; Figure 5 This is another embodiment of the present invention. Figure 1 A schematic diagram of the cross-section along the middle III-III direction; Figure 6 This is another embodiment of the present invention. Figure 1 A schematic diagram of the cross section along the IV-IV direction.

[0018] Explanation of icon numbers: Inlet section 10, first main hole 101, secondary hole 102, manifold section 20, channel 201; Second main hole 203, vertical plate 21, bottom plate 22, first support plate 23, second support plate 24. Detailed Implementation

[0019] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, clearly and comprehensively demonstrating the technical solution. It should be noted that the listed embodiments are only a part of this utility model, and not all possible implementations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the battery base provided in an embodiment of the present invention from a first-view perspective. Figure 2 This is a schematic diagram of the battery base provided in an embodiment of the present invention from a second perspective. Figure 3 This is an embodiment of the present utility model. Figure 1 Schematic diagram of the cross section in the middle III-III direction. Figure 4 This is an embodiment of the present utility model. Figure 1 A schematic diagram of the cross section along the IV-IV direction.

[0021] This embodiment relates to a single-cell battery with an improved structure, which mainly includes a top cover assembly, a cell, a casing, an explosion-proof valve, and a battery base. The battery base is located at the bottom of the casing and serves to support the cell and drain any abnormal discharge. An explosion-proof hole is provided at the bottom of the casing, which corresponds to the position of the second main hole 203 on the base and is sealed by the explosion-proof valve. The cell is installed inside the casing and connected to the inlet portion 10 of the battery base, while the top cover assembly is connected to the upper part of the casing to achieve a seal.

[0022] The battery base structure comprises two parts: an inlet section 10 and a confluence section 20. The inlet section 10 has a first main hole 101 and a secondary hole 102, and is connected to the lower end of the battery cell, facilitating the rapid drainage of waste generated when the battery cell malfunctions into the battery base. The confluence section 20 is laterally connected to the inlet section 10, and has interconnected channels 201 and a second main hole 203 inside. The first main hole 101 communicates with the second main hole 203 to ensure unobstructed main drainage path; the secondary hole 102 communicates with the channel 201 to form an auxiliary drainage channel 201. In this way, when a single battery cell experiences abnormal operating conditions, such as an abnormal increase in internal pressure or the generation of gaseous or liquid waste, the waste inside the casing can be discharged through two paths: on the one hand, the waste can flow directly through the first main hole 101 of the battery base through the second main hole 203, and finally pass through the explosion-proof hole and be discharged by the explosion-proof valve; on the other hand, the waste can also enter the channel 201 in the confluence section 20 through the secondary hole 102, flow through the channel 201 to the second main hole 203, and finally be discharged from the casing through the explosion-proof hole.

[0023] The structure described in this embodiment effectively solves the technical problems of traditional single-cell batteries, such as poor waste release, difficulty in timely pressure release, and easy rupture or even explosion of the casing under abnormal conditions. Specifically, by designing a first main hole 101, a second main hole 203, a secondary hole 102, and a channel 201 in the battery base, multi-path evacuation of waste is achieved, greatly improving discharge efficiency. When the internal pressure of the battery rises abnormally, the first main hole 101, channel 201, and secondary hole 102 work together to ensure that waste can quickly converge to the second main hole 203 regardless of which path it takes, and be discharged in time through the explosion-proof valve, preventing safety risks caused by blockage of a single path. The multi-path evacuation design also effectively disperses the internal pressure of the casing, reducing the probability of casing rupture. In addition, this structure has good compatibility with existing battery cells and casings. The partitioned design of the base not only meets the support requirements of the battery cells, but also ensures the waste drainage function, without affecting the normal assembly and use of the battery. The explosion-proof valve ensures that it only opens when the internal pressure is abnormal, maintaining good battery sealing under normal conditions and preventing external impurities from entering, further improving battery safety and lifespan. In summary, the single-cell battery structure provided in this embodiment, through a reasonable multi-path discharge design, significantly improves the safety and reliability of the battery under abnormal conditions, effectively achieving the technical effects of rapid pressure release and efficient evacuation of waste.

[0024] This embodiment relates to the structural design optimization of the battery base, specifically including the thickness parameter settings of the inlet section 10 and the confluence section 20. The inlet section 10, as a structure directly connected to the battery cell, has a thickness set to A. It is used to support the weight of the battery cell and guide the downward flow of excrement or abnormal gas below the battery cell. The confluence section 20 is located on one side of the inlet section 10 and communicates with it. Its main function is to collect the excrement from the main hole and secondary hole 102 of the inlet section 10 and guide it to the second main hole 203 before discharging it from the casing. To achieve the best balance between structural strength and excrement flow efficiency, this technical solution limits the thickness B of the confluence section 20 to satisfy 0.4A≤B≤0.6A, that is, the thickness of the confluence section 20 is 40% to 60% of the thickness of the inlet section 10, for example, 40%, 45%, 50%, 55%, 60%, etc. This ratio not only ensures that the busbar 20 has sufficient structural strength to support the overall battery structure, but also prevents the busbar space from becoming redundant due to excessive thickness, or the excrement from becoming too thin, thus hindering its rapid collection and flow.

[0025] By designing the thickness ratio as described above, this embodiment effectively solves the problems of insufficient structural strength, high drainage resistance, or structural redundancy that may result from unreasonable thickness settings of the current collector 20 in existing battery bases. Specifically, if the thickness B of the current collector 20 is too large, it will not only waste materials and increase the space occupied at the bottom of the individual battery cells, but may also affect the overall layout and integration density of the battery; if the thickness B is too small, the current collector 20 may not have sufficient load-bearing capacity when the individual battery cells malfunction, leading to deformation or even damage. At the same time, the drainage channel is narrow, making it difficult for gas and liquid to be discharged in time, resulting in excessive internal pressure in the casing and reducing battery safety. This technical solution controls the thickness of the current collector 20 to between 40% and 60% of the thickness of the inlet section 10, so that the current collector 20 has sufficient mechanical strength to support the battery structure, while also providing reasonable space for the flow of waste, improving the efficiency of waste collection and evacuation, ensuring timely pressure relief under abnormal operating conditions of the individual battery cells, and effectively preventing safety hazards such as casing rupture or explosion. Therefore, this technical solution achieves a dual improvement in structural safety and drainage efficiency, enhancing the overall safety performance and reliability of a single battery cell.

[0026] This embodiment provides a design for optimizing the thickness of the battery base structure. Specifically, the battery base includes two parts: an inlet section 10 and a confluence section 20. The thickness of the inlet section 10 is A, which is used to support the weight of the battery cell and effectively guide the gas or liquid waste generated at the bottom of the battery cell into the base. The thickness of the confluence section 20 is B, which is used to collect the waste from the inlet section 10 and further guide it to the discharge channel 201. To achieve the best balance between the strength of the base structure and the battery performance, this technical solution explicitly limits the sum of the thicknesses of the inlet section 10 and the confluence section 20 to 2 mm ≤ A + B ≤ 5 mm, for example, 2 mm, 3 mm, 4 mm, 5 mm, etc. That is, regardless of how the thicknesses of the inlet section 10 and the confluence section 20 are distributed, their total thickness is not less than 2 mm and not more than 5 mm. This design ensures that the battery base has the necessary mechanical strength and drainage capacity, while avoiding the problem of a decrease in the energy density of a single battery cell due to excessive thickness of the battery base occupying battery cell space.

[0027] By limiting the thickness range described above, this embodiment effectively solves two main technical problems caused by the unreasonable thickness setting of existing battery bases. On the one hand, if the total thickness A+B of the battery base is less than 2 mm, the battery base is too thin overall, lacks sufficient mechanical strength, and cannot effectively support the weight of the battery cell and external pressure. Furthermore, the drainage channel 201 is too narrow, preventing the smooth discharge of gas or liquid waste generated under abnormal operating conditions of the battery cell, posing a safety hazard. On the other hand, if the total thickness A+B of the battery base is greater than 5 mm, the battery base structure is too thick, occupying limited internal space of the individual battery cell, reducing the available cell volume, and consequently lowering the battery's energy density, affecting the battery's range and market competitiveness. This technical solution, by strictly controlling the battery base thickness within the 2-5 mm range, ensures sufficient strength and good drainage function while maximizing the preservation of cell space, effectively improving the energy density and overall performance of the individual battery cell. Therefore, this technical solution achieves a balance between the safety and energy density of the individual battery cell, enhancing its practical application value and market competitiveness.

[0028] This embodiment proposes a structural optimization scheme for a battery base, characterized in that: multiple secondary holes 102 are provided on the base in the direction from the inlet 10 to the confluence 20. These secondary holes 102 are spaced apart on the inlet 10, and their diameters gradually increase along this direction. Specifically, the secondary holes 102 located near the inlet 10 have smaller diameters, and their diameters gradually increase as they extend towards the confluence 20, until they reach their maximum diameter at the confluence 20. The distribution spacing of the secondary holes 102 can be uniform or adjusted appropriately according to drainage requirements. The diameter of the secondary holes 102 can increase linearly or in stages, thereby better adapting to changes in the flow rate of waste during battery operation and achieving dynamic matching of the drainage channel 201's capacity.

[0029] By employing the structural design of gradually increasing diameter secondary holes 102, this technical solution effectively solves the problem of blockage and poor flow of waste (such as gas or liquid) in the battery base during the guiding process in existing technologies. On one hand, the smaller diameter of the secondary holes 102 near the inlet 10 effectively guides the initial small amount of waste into the base while blocking larger particles, ensuring structural safety. On the other hand, as the waste flows towards the confluence 20, the fluid volume gradually increases, increasing the demand on the flow channel 201. At this point, the gradual increase in the diameter of the secondary holes 102 significantly reduces flow resistance and improves drainage efficiency, thereby preventing the accumulation and blockage of waste inside the base. Furthermore, the increasing diameter design of the secondary holes 102 ensures that a large amount of gas or liquid can be quickly discharged under abnormal battery operating conditions, effectively preventing abnormal pressure increases inside the casing and improving battery safety. In summary, this technical solution, by progressively increasing the diameter of the secondary hole 102 from the inlet 10 to the confluence 20, reasonably improves the unobstructedness and drainage efficiency of the drainage channel 201, significantly enhances the drainage capacity and overall safety performance of the battery base, and strengthens the practical application reliability of the battery product.

[0030] This embodiment provides a structural design for a battery base, characterized by the presence of a first main hole 101 and a second main hole 203, with the diameter of the first main hole 101 being smaller than the diameter of the second main hole 203. Specifically, the first main hole 101 is located in the inlet portion 10 of the battery base, while the second main hole 203 is located in the confluence portion 20 of the battery base. Viewed along the thickness direction of the battery base, their axes are perfectly aligned; that is, the projection of the first main hole 101 onto the confluence portion 20 along its thickness falls entirely within the projection of the second main hole 203. In other words, the first main hole 101 and the second main hole 203 overlap in the projection direction, but the first main hole 101 is smaller, and the second main hole 203 is larger. This structure can be achieved through precise machining of the battery base mold, or through subsequent punching or laser processing.

[0031] The above structural design effectively solves the problem of balancing drainage efficiency and protective performance in traditional battery base drainage holes by utilizing the diameter difference between the first main hole 101 and the second main hole 203 and their overlapping projection arrangement. Firstly, the smaller diameter of the first main hole 101 effectively filters larger impurities in the initial stage, preventing foreign objects from entering the battery base and improving the structure's durability and safety. As the waste (such as gas or liquid generated during battery operation) flows downwards, when it flows through the second main hole 203, its larger diameter not only greatly enhances the flow capacity of the drainage channel 201 but also significantly reduces fluid flow resistance, improving overall drainage efficiency. Simultaneously, the overlapping projections of the first main hole 101 and the second main hole 203 in the thickness direction ensure the continuity and unobstructed flow of waste, avoiding fluid stagnation or backflow caused by misalignment of the channels. This technical solution effectively blocks impurities and ensures the smooth flow of the discharge channel 201 under high load or abnormal operating conditions, thereby improving battery safety and reliability. It effectively overcomes the technical difficulties of easy blockage or poor discharge in the existing technology, achieving a technical effect that balances efficient discharge and safety.

[0032] This embodiment provides a structural design for a battery base. The confluence section 20 includes a vertical plate 21 and a bottom plate 22. The vertical plate 21 surrounds the inlet section 10, and the bottom plate 22 is connected to the vertical plate 21, together forming a drainage channel 201. Specifically, the vertical plate 21 has a ring-shaped or polygonal structure, surrounding the inlet section 10 and separating it from the external space. The bottom plate 22 is located below the vertical plate 21 and is sealed to the edge of the vertical plate 21, forming a closed or semi-closed confluence space. To achieve the drainage function, a second main hole 203 is provided on the bottom plate 22. The second main hole 203 is used to collect and discharge the gas or liquid and other excrement introduced by the inlet section 10. The above structure can be realized by injection molding, welding, or mechanical assembly, and the specific structural dimensions and shape can be adaptively adjusted according to the installation requirements of the battery module.

[0033] Through the above structural design, the vertical plate 21 of the confluence section 20 is arranged around the inlet section 10, effectively limiting the flow path of the excrement and preventing the disorderly diffusion of the excrement in the confluence space, thus achieving effective guidance of the excrement flow. Simultaneously, the channel 201 formed by the connection of the vertical plate 21 and the bottom plate 22 can collect the excrement from the inlet section 10 and smoothly guide it to the second main hole 203 of the bottom plate 22, avoiding the accumulation and retention of excrement inside the base. The second main hole 203 on the bottom plate 22 serves as the discharge outlet, enabling timely and effective discharge of excrement from the confluence space, reducing the pressure and temperature inside the casing, and preventing safety risks caused by gas or liquid accumulation. This technical solution solves the problems of obstructed discharge channels 201 and easy retention or diffusion of excrement in the prior art, achieving reasonable constraint on the discharge path and improving discharge efficiency, thereby significantly enhancing the discharge capacity and overall safety performance of the battery base, and improving the reliability and safety of individual batteries under complex operating conditions.

[0034] Please see Figure 5 , Figure 5 This is another embodiment of the present invention. Figure 1 Schematic diagram of the cross section in the III-III direction.

[0035] This embodiment provides a battery base structure in which the distance between the base plate 22 and the inlet portion 10 gradually increases from both ends of the base plate 22 toward the second main hole 203 along the length of the base plate 22. That is, the gap between the base plate 22 and the inlet portion 10 is smaller near both ends of the base plate 22, and gradually increases as it approaches the second main hole 203. For example, the base plate 22 can be designed with a slightly concave center or an arc-shaped profile, or the outer wall profile of the inlet portion 10 can gradually shift outward toward the second main hole 203, thereby achieving the increasing distance. This structure can be manufactured by molding, pressing, or other conventional processing methods, and is suitable for applications requiring efficient drainage, such as battery modules.

[0036] This technical solution effectively solves the problem in existing technologies where waste (such as gas or liquid) tends to accumulate and obstruct flow at both ends of the converging channel 201 when flowing from both ends of the base plate 22 towards the second main hole 203. The gradually increasing distance creates a channel 201 that converges from both ends towards the center (second main hole 203) and gradually expands in flow space, reducing flow resistance and improving the efficiency of waste aggregation and diversion. This not only facilitates smooth flow of waste within the battery base, preventing dead zones or accumulation at both ends, but also reduces local pressure and blockage risk, improving overall discharge capacity and safety performance. In summary, this technical solution optimizes the hydrodynamic environment of the discharge path through reasonable changes in structural gaps, overcoming the technical difficulties of easy blockage and low discharge efficiency in existing structures' discharge channels 201, achieving efficient and smooth discharge.

[0037] Please see Figure 6 , Figure 6 This is another embodiment of the present invention. Figure 1 A schematic diagram of the cross section along the IV-IV direction.

[0038] This embodiment relates to an improvement in the structure of a manifold 20. Specifically, the manifold 20 includes a base plate 22, a vertical plate 21, and a newly provided first support plate 23. The first support plate 23 is disposed inside the channel 201 of the manifold 20 and extends along the width direction of the manifold 20. One end of the first support plate 23 is fixedly connected to the vertical plate 21, and the other end extends toward the second main hole 203 of the manifold 20 until it reaches the second main hole 203. That is, the first support plate 23 spans the width direction of the channel 201 of the manifold 20, with one end starting from the vertical plate 21 of the manifold 20 and the other end ending at the edge of the second main hole 203. The first support plate 23 can be integrally formed or assembled subsequently, and its cross-sectional shape can be rectangular, trapezoidal, etc., and the specific shape can be determined according to the overall structural design requirements of the manifold 20.

[0039] This technical solution effectively solves the problems of insufficient strength, easy deformation, or turbulent internal fluid flow in the channel 201 structure of the manifold 20 during use by adding a first support plate 23 extending along the width direction inside the manifold 20. One end of the first support plate 23 is connected to the vertical plate 21, providing additional lateral support to the channel 201 structure, improving the overall structural stability and load-bearing capacity of the manifold 20, and preventing deformation caused by external forces or internal pressure. Furthermore, the first support plate 23 guides the discharge of gas or liquid within the manifold 20 towards the second main hole 203, optimizing the fluid channel 201, reducing dead zones and turbulence, and improving the flow efficiency of the discharge. Through the above structural optimization, not only is the mechanical strength of the manifold 20 enhanced, but the smoothness of the discharge flow within the channel 201 is also improved, significantly improving the problems of easy deformation and low flow efficiency of the manifold 20 in the prior art, achieving the technical effect of high structural reliability and high discharge efficiency.

[0040] In another embodiment, to enhance the structural strength of the channel 201 of the confluence section 20 and improve the guiding effect of excrement, a second support plate 24 is provided inside the channel 201. This second support plate 24 extends along the length of the confluence section 20, meaning its extension direction is consistent with the main flow direction of the channel 201. Specifically, one end of the second support plate 24 is fixedly connected to the vertical plate 21, and the other end extends towards the second main hole 203 until it reaches the second main hole 203. Thus, the second support plate 24 traverses the interior of the channel 201 and forms a fixed connection and guiding relationship with the vertical plate 21 and the second main hole 203, respectively. The second support plate 24 can be integrally formed with the confluence section 20 or assembled subsequently; its cross-section is typically rectangular, but it can also be designed into other shapes according to specific requirements.

[0041] By incorporating a second support plate 24 extending along the length of the channel 201 within the manifold 20, this technical solution addresses the problems of easy deformation and insufficient structural strength of the channel 201 in existing manifolds 20 when subjected to external forces or internal fluid pressure. One end of the second support plate 24 is connected to the vertical plate 21, effectively dispersing and bearing the forces along the length of the channel 201, enhancing the overall rigidity and stability of the manifold 20, and preventing structural problems such as bending and deformation of the channel 201 due to prolonged use or pressure. Furthermore, the second support plate 24 guides the fluid within the channel 201, allowing gas or liquid waste to flow more smoothly along the length towards the second main hole 203, reducing turbulence and accumulation of fluid within the channel 201, and improving the flow efficiency of the waste. In summary, this technical solution, through the rational arrangement of the second support plate 24, significantly improves the structural strength and discharge efficiency of the manifold 20, effectively solving the technical problems of easy deformation and poor discharge in existing manifolds 20, achieving a reliable structure and efficient flow.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0043] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0044] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A battery base, characterized in that, The battery base includes: The inlet section has a first main hole and a secondary hole; and The confluence section is connected to one side of the inlet section. The confluence section has a channel and a second main hole that are interconnected. The first main hole and the second main hole are connected, and the secondary hole is connected to the channel.

2. The battery base according to claim 1, characterized in that, The thickness of the inlet portion is A, and the thickness of the manifold portion is B, where 0.4A ≤ B ≤ 0.6A.

3. The battery base according to claim 1, characterized in that, The thickness of the inlet portion is A, and the thickness of the manifold portion is B, where 2 mm ≤ A + B ≤ 5 mm.

4. The battery base according to claim 1, characterized in that, In the direction from the inlet to the confluence, the diameter of the secondary holes gradually increases, and there are multiple secondary holes, which are spaced apart on the inlet.

5. The battery base according to claim 1, characterized in that, The diameter of the first main hole is smaller than the diameter of the second main hole, and the projection of the first main hole falls into the projection of the second main hole in the thickness direction of the confluence portion.

6. The battery base according to any one of claims 1 to 5, characterized in that, The confluence section includes a vertical plate and a bottom plate. The vertical plate is arranged around the inlet section. The bottom plate and the vertical plate are connected to form the channel. The bottom plate has a second main hole.

7. The battery base according to claim 6, characterized in that, The distance between the base plate and the inlet gradually increases from both ends along the length of the base plate to the second main hole.

8. The battery base according to claim 6, characterized in that, The confluence section also includes a first support plate, which is disposed in the channel and extends along the width direction of the confluence section. One end of the first support plate is connected to the vertical plate, and the other end extends to the second main hole.

9. The battery base according to claim 6, characterized in that, The confluence section also includes a second support plate, which is disposed in the channel and extends along the length of the confluence section. One end of the second support plate is connected to the vertical plate, and the other end extends to the second main hole.

10. A single-cell battery, characterized in that, The single battery includes: a top cover assembly, a battery cell, a housing, an explosion-proof valve, and a battery base as described in any one of claims 1 to 9. The battery base is disposed at the bottom of the housing, and the bottom of the housing has an explosion-proof hole corresponding to the second main hole. The explosion-proof valve covers the explosion-proof hole. The battery cell is disposed in the housing and connected to the battery base. The top cover assembly is connected to the housing.

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