Plastic shell structure for delaying battery failure

Abstract

In order to solve the problem that the failure of the battery is too fast in the prior art, the utility model provides the plastic shell structure for delaying the failure of the battery, the plastic shell structure comprises a shell and a middle partition arranged in the shell, the shell is a rectangular groove with an arc-shaped edge, an X-shaped reinforcing rib is arranged on the outer wall of the shell, and a plurality of side partitions are arranged on two sides of the middle partition. Through the combined action of the X-shaped reinforcing ribs, the partition reinforcing ribs and the acid storage tank, the consistency of the acid content of each unit-cell plate group is improved, the consistency of the battery performance is improved, and the failure of the battery is delayed.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a plastic shell structure for delaying battery failure. Background Art

[0002] Electric bicycles are a common means of transportation for people to travel. Electric lead-acid batteries are the main components of battery bicycles and provide power for electric bicycles. In order to increase the service life of electric lead-acid batteries, they are packaged in a tight assembly manner. Electric vehicle batteries are arranged in series with six pole groups. The tight assembly packaging method causes a large outward expansion force in the middle pole group, causing the two pole groups on the edge to expand outward, resulting in bulging of both sides of the plastic shell containing the pole groups, and the volume of the cells on both sides increases; after the pole groups are tightly assembled, they are activated by adding acid and charging, and finally a finished battery that can be used by customers is obtained. However, the enlarged volume of the cells on both sides of the finished battery causes the acid content of the cells to exceed that of the four cells in the middle, and oxygen recombination reaction cannot be carried out, resulting in the cycle performance of the pole groups on both sides being weaker than that of the four cells in the middle. The performance decay of the pole groups on both sides accelerates the failure of the battery.

[0003] In order to solve the above problems, the Chinese utility model patent with patent number CN208157459U proposes a plastic shell structure of a lead-acid battery that improves the consistency of acid content, including an outer shell and a middle partition, the outer shell is in the shape of a rectangular groove; the middle partition is multi-channel and evenly arranged in the outer shell; the outer shell and the middle partition are an integrally formed structure, and a reinforcing rib net is provided on the outer shell or / and the middle partition, the reinforcing rib net and the outer shell or the middle partition are an integrally formed structure, and the reinforcing rib net can prevent the battery from deforming during assembly and formation, and can make each single cell space of the battery stable and consistent. However, the design of this utility model does not take into account the cluster utilization problem when the battery is working, which will lead to inconsistent reaction effects in the upper, middle and lower parts. Utility Model Content

[0004] The utility model mainly solves the problem of too fast battery failure in the prior art and provides a plastic shell structure for delaying battery failure.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions:

[0006] A plastic shell structure for delaying battery failure, characterized in that it includes an outer shell and a middle partition arranged in the outer shell, the outer shell is a rectangular groove with an arc-shaped edge, the outer wall of the outer shell is provided with X-shaped reinforcing ribs, and a plurality of side partitions are provided on both sides of the middle partition. The outer shell of the utility model plays the role of containing pole groups and sulfuric acid.

[0007] As a preferred solution, three acid storage tanks with the same volume are provided on one side of each of the side partitions.

[0008] As a preferred solution, the shape of the acid storage tank is an inverted isosceles triangle, which is used to improve the reaction effect of the middle and upper pole groups and reduce the occurrence of sulfation in the lower part.

[0009] As a preferred solution, the distances between the acid storage tanks are the same, so as to improve the acid content and pole group utilization rate of each single cell.

[0010] As a preferred solution, one side of the acid storage tank is symmetrical to the middle partition, so that the pole groups and the plastic shell on both sides of the middle partition are evenly stressed.

[0011] As a preferred solution, barrier reinforcement ribs are provided at equal distances between the acid storage tanks to increase the strength of the barrier and reduce the deformation of the barrier.

[0012] As a preferred solution, the volume of the barrier reinforcement rib is the same as the volume of the acid storage tank, so as to save costs.

[0013] As a preferred solution, the number of side partitions on both sides of the middle partition is the same, so that the force on the single grid is uniform and the acid content of the pole group is consistent.

[0014] As a preferred solution, the X-shaped reinforcement ribs are arranged in the upper middle part of the outer wall to reduce the deformation of the side wall.

[0015] Therefore, the advantages of the utility model are:

[0016] Through the combined effect of X-shaped reinforcement ribs, spacer reinforcement ribs and acid storage tanks, the consistency of acid content in each single-cell pole group is improved, the consistency of battery performance is improved, and battery failure is delayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model.

[0020] In the figure: 1, outer shell; 2, middle partition; 3, side partition; 11, X-shaped reinforcement rib; 31, partition reinforcement rib; 32, acid storage tank. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Example:

[0023] A plastic shell structure for delaying battery failure includes an outer shell 1 and a middle partition 2 arranged in the outer shell. The outer shell 1 is a rectangular groove with an arc-shaped edge. This design is not only beautiful, but also can effectively carry pole groups and sulfuric acid. The outer wall of the outer shell 1 is provided with X-shaped reinforcing ribs 11. This structure can increase the rigidity and anti-folding property of the outer shell, thereby improving the pressure resistance and durability of the battery. A plurality of side partitions 3 are provided on both sides of the middle partition 2. Three acid storage tanks 32 of the same volume are provided on one side of each side partition. Through the acid storage tanks 32, the acid liquid can be more evenly distributed, avoiding the local acid liquid concentration being too high or too low, thereby reducing the occurrence of polarization and corrosion.

[0024] Through this structural design, the pole groups and sulfuric acid inside the battery can be better loaded and distributed, reducing the deep discharge and recharge of the battery. Deep discharge and recharge are one of the main reasons for the shortened battery life. Therefore, this plastic shell structure can effectively extend the service life of the battery. In addition to delaying battery failure, this plastic shell structure also has other advantages. For example, it provides better battery safety performance and reduces the risk of battery leakage and short circuit. At the same time, the structure can also protect the components inside the battery from the influence of the external environment, such as moisture and dust.

[0025] The middle spacer 2 is used to isolate the pole groups of the two middle single grids, to ensure the safety and stability of the battery. Due to the limited thickness of the middle spacer 2, if the acid storage tank 32 is designed on both sides of the middle spacer 2, the spacer at the acid storage tank 32 will be too thin, causing the danger of acid leakage and short circuit in the middle two grids, so the middle spacer is not provided with an acid storage tank 32. These acid storage tanks 32 are arranged on the side spacer 3, and the middle spacer 2 will not be affected. Through the acid storage tank 32, the acid solution can be better distributed in the battery interior, avoiding the situation that the local acid solution concentration is too high or too low, thereby reducing the risk of polarization and corrosion, and extending the service life of the battery.

[0026] There are four side partitions 3, and the number of side partitions 3 on both sides of the middle partition 2 is equal. In order to ensure the stability and performance of the battery, each side partition 3 has similar design features. First, three acid storage tanks 32 are arranged at uniform distances from left to right. The presence of these acid storage tanks 32 can effectively store acid liquid, so that the side partition 3 can provide a continuous and stable chemical reaction during use. In addition, two partition reinforcement ribs 31 are arranged on both sides of each acid storage tank 32. The function of these reinforcement ribs is to enhance the structural strength of the side partition 3 so that it can withstand greater pressure and load. The position of the acid storage tank 32 and the partition reinforcement rib 31 on one side of the side partition 3 is symmetrical to the middle partition 2. In this way, the pole groups and plastic shells on both sides of the middle partition 2 can evenly share the pressure when subjected to force, thereby avoiding the possibility of local overload and structural imbalance. In addition, this design can also ensure that the six single grids are subjected to uniform force, the pole group acid content is consistent, so that each part of the side partition 3 can fully exert its function.

[0027] In short, the structure of the side baffles 3 is carefully designed. It achieves the requirements of force balance, structural stability and experimental accuracy through the symmetrical distribution of the number of middle baffles 2, the reasonable configuration of the acid storage tanks 32 and the baffle reinforcement ribs 31, and the precise control of the acid content of the pole group.

[0028] Since the utilization rate of the middle and upper part of the pole group is high, this means that the reaction is more thorough. However, this also brings a problem, that is, the deformation of the middle and upper part of the plastic shell is significantly greater than that of the lower part. In order to solve this problem, the X-shaped reinforcement rib 11 is arranged in the middle and upper part of the outer wall of the outer shell 1. The center of the X-shaped reinforcement rib 11 is exactly at the position of maximum deformation of the side wall. Through the action of the four corners of the X-shaped reinforcement rib 11, the pressure generated by the deformation of the outer wall can be absorbed and dispersed. In this way, the side wall of the side partition 3 can remain relatively stable when subjected to the reaction of the pole group, reduce the degree of deformation, avoid structural rupture or failure of the outer shell 1 due to excessive deformation, and ensure the long-term stable operation and continuous use of the battery.

[0029] The acid storage tank 32 is arranged on the side barrier 3 and is in the shape of an inverted isosceles triangle. Since the pole group utilization rate of the power lead-acid battery is often the upper part> the middle part> the lower part, and at the same time, due to the effect of gravity, the high-density sulfuric acid in the pole group will settle to the lower part after charging, resulting in the common phenomenon of sulfation in the lower part. In order to improve the reaction effect of the pole group in the middle and upper part and reduce the occurrence of sulfation in the lower part, the acid storage tank 32 is designed to be an inverted isosceles triangle. This design can make the acid content of each cell more balanced, thereby improving the pole group utilization rate of each cell.

[0030] In terms of design, the three acid storage tanks 32 on each side baffle 3 have the same volume, and the distances between the acid storage tanks 32 are the same, so as to improve the acid content and pole group utilization rate of each single cell.

[0031] The barrier reinforcement ribs 31 are arranged at equal distances between the acid storage tanks 32, and the barrier reinforcement ribs 31 are a common structural reinforcement method. In the design of the acid storage tank 32, the barrier reinforcement ribs 31 play a very important role. In order to ensure the strength and stability of the barrier, the barrier reinforcement ribs 31 are arranged at equal distances between the acid storage tanks 32. Since the thickness of the barrier is limited, the setting of the acid storage tank 32 will inevitably reduce the strength of the barrier. Therefore, two wider reinforcement ribs are arranged at equal distances between the three acid storage tanks 32 to increase the strength of the barrier and reduce the deformation of the barrier. The volume of the barrier reinforcement ribs 31 is the same as the volume of the acid storage tank 32, and the material cost will not be increased. This design method is not only economical and practical, but also has very good engineering application value. The design of the barrier reinforcement ribs 31 also provides a new idea and method for the structural design of the acid storage tank 32. In future designs, the design of the barrier reinforcement ribs 31 can provide more reliable and safe solutions for more projects.

[0032] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A plastic shell structure for delaying battery failure, characterized in that: It comprises an outer shell and a middle partition arranged in the outer shell. The outer shell is a rectangular groove with an arc-shaped edge. The outer wall of the outer shell is provided with X-shaped reinforcing ribs. Both sides of the middle partition are provided with a plurality of side partitions.

2. A plastic shell structure for delaying battery failure according to claim 1, characterized in that: Three acid storage tanks with the same volume are arranged on one side of each of the side partitions.

3. A plastic shell structure for delaying battery failure according to claim 2, characterized in that: The shape of the acid storage tank is an inverted isosceles triangle.

4. A plastic shell structure for delaying battery failure according to claim 2 or 3, characterized in that: The distances between the acid storage tanks are the same.

5. A plastic shell structure for delaying battery failure according to claim 2, characterized in that: The side on which the acid storage tank is arranged is symmetrical to the middle partition.

6. A plastic shell structure for delaying battery failure according to claim 2, characterized in that: The acid storage tanks are provided with spacer reinforcement ribs at equal distances.

7. A plastic shell structure for delaying battery failure according to claim 6, characterized in that: The volume of the barrier reinforcement rib is the same as the volume of the acid storage tank.

8. The plastic shell structure for delaying battery failure according to claim 1, characterized in that: The number of side barriers on both sides of the middle barrier is the same.

9. A plastic shell structure for delaying battery failure according to claim 1, characterized in that: The X-shaped reinforcing ribs are arranged at the middle and upper part of the outer wall.

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