A large capacity battery
By designing battery tanks with lengths greater than height and multiple rectangular accommodating cavity structures, the existing large-capacity battery structure is solved and the number of plates is small, and more stable and efficient battery assembly connection and electrolyte management is achieved, which extends the The battery life and improves current balance.
Patent Information
- Application Number
- CN201811481166.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-12-05
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2038-12-05
AI Technical Summary
The existing large-capacity battery has an unstable structure, a high center of gravity, and the individual service life of the electrode plate has a great impact on the overall battery life. The number of electrode plates is small, which makes it inconvenient to assemble and connect, resulting in uneven current distribution and easy to damage.
A battery tank with a length greater than the height is designed, including multiple rectangular accommodating chambers and partition walls, increasing the number and stability of the plates, adopting multiple pairs of side-by-side terminals and raised structures for easy connection and observation, and setting up an integral valve for easier electrolyte addition and Gas is discharged to increase battery tank strength.
It reduces the impact of the service life of a single plate on the overall battery life, improves structural stability and current balance, simplifies the process of plate connection and electrolyte addition, and enhances the safety and service life of the battery.
Smart Images
Figure CN109585709B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of storage batteries, and in particular relates to a large-capacity storage battery. Background Art
[0002] The shell shape of the existing large-capacity batteries, especially the 2V1500Ah capacity batteries, is a rectangular parallelepiped structure, and the horizontal cross-section is close to a square. The height dimension is respectively larger than the length dimension and the width dimension, and it occupies a large space in the vertical direction. The center of gravity is high and the structure is unstable. At the same time, the battery of this structure needs to be equipped with a plate that matches the shell shape, that is, the height dimension of the plate is respectively larger than the length dimension and the width dimension, and the weight of a single plate is large, which makes it inconvenient to assemble the plate and the production cost is also high. In addition, the existing large-capacity batteries have only one accommodating cavity, which can accommodate a small number of plates. The current distributed to a single plate is large, and a single plate is easily damaged. Once a single plate is damaged, the overall power supply and storage capacity of the battery are significantly reduced. Therefore, the service life of a single plate has a greater impact on the overall life of the battery. Summary of the invention
[0003] In view of the above-mentioned problems existing in the existing large-capacity batteries, the present invention provides a large-capacity battery, whose length dimension is greater than its height dimension, the center of gravity is lowered, the structure is stable, the weight of the plates used is small and the number is large, the current distributed to a single plate is small, and the influence of the service life of a single plate on the overall life of the battery is weakened.
[0004] The technical solution adopted by the present invention is as follows: A large-capacity storage battery, comprising a battery slot with a accommodating function and a battery cover covering the upper part of the battery slot, the length dimension of the battery slot is greater than the height dimension, the battery slot comprises a plurality of accommodating cavities, a plurality of positive plates, negative plates and isolation plates located between the positive plates and the negative plates are stacked in each accommodating cavity along the length direction of the battery slot, and the pole ears of the positive plates and the negative plates are both facing upwards, the pole ears of the positive plates are connected upwards to the positive bus, and the pole ears of the negative plates are connected upwards to the negative bus, and the battery cover is provided with a plurality of pairs of positive terminals and negative terminals arranged side by side, the positive terminals are connected to the positive bus, and the negative terminals are connected to the negative bus.
[0005] The length dimension of the large-capacity storage battery of the present invention is greater than the height dimension, the center of gravity is lowered, the structure is stable, the weight of the pole plates used are small and the number is large, the current distributed to a single pole plate is small, and the influence of the service life of a single pole plate on the overall life of the storage battery is weakened.
[0006] Furthermore, a plurality of accommodating cavities are arranged in parallel in the battery slot, and the horizontal cross-section of each accommodating cavity is rectangular, and a partition wall is provided between adjacent accommodating cavities to separate the accommodating cavities from each other, so as to keep each accommodating cavity independent and complete, and the accommodating cavities are connected in series with each other. Since there are many positive plates and negative plates, and they are distributed along the length direction of the battery slot, if there is only one accommodating cavity, the positive plate and the negative plate will be connected to the positive bus and the negative bus as a whole, which leads to a small operating space, inconvenient observation, easy omission, and very inconvenient connection. A plurality of accommodating cavities are provided, so that the positive plate and the negative plate in each accommodating cavity are connected to the positive bus and the negative bus as small units, respectively, so that the operating space is relatively large, easy to observe and inspect, and the connection is relatively convenient.
[0007] Furthermore, the partition wall is provided with a notch, the notch has a symmetrical structure, is located in the middle of the upper part of the partition wall, and the positive busbar and the negative busbar are inserted through the notch. When the positive busbar and the negative busbar are in contact with the side wall and / or the bottom wall of the notch, the notch serves to limit and support the positive busbar and the negative busbar, and when the positive busbar and the negative busbar are not in contact with the notch, the notch serves to make way for the installation of the positive busbar and the negative busbar.
[0008] Furthermore, the middle part of the bottom of the notch is concave to form a notch, and the notch makes way for the electrolyte to flow.
[0009] Furthermore, the partition wall is also provided with a plurality of ribs arranged vertically at intervals and a plurality of liquid-perforating holes. The ribs are used to increase the strength of the partition wall and reduce the deformation of the partition wall. The upper part of each rib is arc-shaped to reduce the difficulty of installation. The plurality of liquid-perforating holes are arranged in groups, and each group of liquid-perforating holes is arranged vertically and located between two adjacent ribs. The entire battery slot can be filled with electrolyte by adding electrolyte to only one of the accommodating cavities, without adding electrolyte to each accommodating cavity separately, which reduces the difficulty of adding electrolyte and can also keep the performance of the electrolyte in the entire battery slot consistent for easy detection and replacement.
[0010] Furthermore, the positive busbar and the negative busbar are provided with a plurality of positive protrusions and negative protrusions, respectively, the number of the positive protrusions and the negative protrusions respectively matches the number of the accommodating cavities, each positive protrusion and the negative protrusion respectively corresponds to a positive terminal and a negative terminal, so that each accommodating cavity corresponds to a pair of positive terminals and negative terminals. This structure allows the positive terminal and the negative terminal to have a sufficient spacing, and the large-capacity battery with such a structure has a more stable current during charging and discharging.
[0011] Furthermore, the battery slot is rectangular, and a plurality of vertically arranged ribs are provided on its outer side wall, and the ribs are located at the corners of the rectangle and at the middle of the side wall in the length direction. The ribs are located at the weak position of the battery slot structure, and are used to increase the strength of the battery slot and reduce the deformation of the battery slot.
[0012] Furthermore, the battery cover is provided with a plurality of integral valves, each of which is located between each pair of negative terminals and positive terminals, and serves as an electrolyte addition port and a gas discharge port. The integral valves can realize the addition of electrolyte without opening the battery cover. In addition, gas may be generated during the charging and discharging process. If it is not discharged in time, it may cause the large-capacity battery to swell and become dangerous. The generated gas can be discharged through the integral valves.
[0013] The invention has the following beneficial effects: the length dimension of the large-capacity storage battery of the invention is greater than the height dimension, the center of gravity is lowered, the structure is stable, the weight of the adopted plates is small and the number is large, the current distributed to a single plate is small, and the influence of the service life of a single plate on the overall life of the storage battery is weakened. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is the front view of the large capacity battery;
[0015] Figure 2 It is a top view of a large-capacity battery (with battery cover);
[0016] Figure 3 It is a top view of a large-capacity battery (without the battery cover);
[0017] Figure 4 is a top view of the battery slot;
[0018] Figure 5 This is a schematic diagram of the structure of the partition wall;
[0019] In the figure: 1-battery slot; 11-accommodation cavity; 12-positive plate; 13-negative plate; 14-separator; 15-positive busbar; 151-positive protrusion; 16-negative busbar; 161-negative protrusion; 17-partition wall; 171-notch; 172-recess; 173-rib; 174-liquid hole; 18-convex rib; 2-battery cover; 21-positive terminal; 22-negative terminal; 23-integral valve. DETAILED DESCRIPTION
[0020] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.
[0021] The large capacity battery of this embodiment has a capacity of 2V1500Ah. Figures 1 to 5 As shown, it includes a battery slot 1 with a accommodating function and a battery cover 2 covering the upper part of the battery slot 1, the length dimension of the battery slot 1 is greater than the height dimension, the battery slot 1 includes a plurality of accommodating cavities 11, a plurality of positive plates 12, negative plates 13 and a separator 14 located between the positive plates 12 and the negative plates 13 are stacked in each accommodating cavity 11 along the length direction of the battery slot 1, and the pole ears of the positive plates 12 and the negative plates 13 are both facing upwards, the pole ears of the positive plates 12 are connected upwards to the positive bus 15, and the pole ears of the negative plates 13 are connected upwards to the negative bus 16, and the battery cover 2 is provided with a plurality of pairs of positive terminals 21 and negative terminals 22 arranged side by side, the positive terminals 21 are connected to the positive bus 15, and the negative terminals 22 are connected to the negative bus 16.
[0022] The length dimension of the large-capacity storage battery of the present invention is greater than the height dimension, the center of gravity is lowered, the structure is stable, the weight of the pole plates used are small and the number is large, the current distributed to a single pole plate is small, and the influence of the service life of a single pole plate on the overall life of the storage battery is weakened.
[0023] A plurality of accommodating chambers 11 are arranged in parallel in the battery container 1, and the horizontal cross section of each accommodating chamber 11 is rectangular. A partition wall 17 is provided between adjacent accommodating chambers 11 to separate the accommodating chambers 11 from each other, so as to keep each accommodating chamber 11 independent and complete, and the accommodating chambers 11 are connected in series with each other. Since there are many positive plates 12 and negative plates 13, and they are distributed along the length direction of the battery container 1, if there is only one accommodating chamber 11, the positive plates 12 and negative plates 13 will be connected to the positive bus 15 and the negative bus 16 as a whole, which leads to a small operating space, inconvenient observation, easy omission, and very inconvenient connection. A plurality of accommodating chambers 11 are provided, so that the positive plates 12 and negative plates 13 in each accommodating chamber 11 are connected to the positive bus 15 and the negative bus 16 as small units, respectively, so that the operating space is relatively large, easy to observe and inspect, and the connection is relatively convenient.
[0024] The partition wall 17 is provided with a notch 171, which has a symmetrical structure and is located in the middle of the upper part of the partition wall 17. The positive busbar 15 and the negative busbar 16 are inserted through the notch 171. When the positive busbar 15 and the negative busbar 16 are in contact with the side wall and / or the bottom wall of the notch 171, the notch 171 serves to limit and support the positive busbar 15 and the negative busbar 16. When the positive busbar 15 and the negative busbar 16 are not in contact with the notch 171, the notch 171 serves to make way for the installation of the positive busbar 15 and the negative busbar 16.
[0025] The middle part of the bottom of the notch 171 is concave to form a notch 172, and the notch 172 makes room for electrolyte flow.
[0026] The partition wall 17 is also provided with a plurality of ribs 173 arranged vertically at intervals and a plurality of liquid penetration holes 174. The ribs 173 are used to increase the strength of the partition wall 17 and reduce the deformation of the partition wall 17. The upper part of each rib 173 is arc-shaped to reduce the difficulty of installation. The plurality of liquid penetration holes 174 are arranged in groups. Each group of liquid penetration holes 174 is arranged vertically and is located between two adjacent ribs 173. The entire battery cell 1 can be filled with electrolyte by only adding electrolyte to one of the accommodating cavities 11. It is not necessary to add electrolyte to each accommodating cavity 11 separately, which reduces the difficulty of adding electrolyte and can also keep the performance of the electrolyte in the entire battery cell 1 consistent for easy detection and replacement. The electrolyte used in this embodiment is in a colloidal state.
[0027] The positive busbar 15 and the negative busbar 16 are provided with a plurality of positive protrusions 151 and negative protrusions 161, respectively, and the number of the positive protrusions 151 and the negative protrusions 161 matches the number of the accommodating cavities 11, respectively, and each positive protrusion 151 and the negative protrusion 161 corresponds to a positive terminal 21 and a negative terminal 22, respectively, so that each accommodating cavity 11 corresponds to a pair of positive terminals 21 and negative terminals 22. This structure allows the positive terminal 21 and the negative terminal 22 to have a sufficient spacing, and the large-capacity storage battery with such a structure has a more stable current during charging and discharging.
[0028] The battery slot 1 is rectangular, and a plurality of vertically arranged ribs 18 are provided on its outer side wall. The ribs 18 are located at the corners of the rectangle and at the middle of the side wall in the length direction. The ribs 18 are located at the weak position of the structure of the battery slot 1 to increase the strength of the battery slot 1 and reduce the deformation of the battery slot 1.
[0029] The battery cover 2 is provided with a plurality of integral valves 23, each of which is located between each pair of negative terminals 22 and positive terminals 21, and serves as an electrolyte addition port and a gas discharge port. The integral valves 23 can be used to add electrolyte without opening the battery cover 2. In addition, gas may be generated during the charging and discharging process. If it is not discharged in time, it may cause the large-capacity battery to swell and become dangerous. The generated gas can be discharged through the integral valves 23.
[0030] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.
Claims
1. A large-capacity storage battery, comprising a battery container having a storage function and a battery cover covering the upper part of the battery container, characterized in that: The length dimension of the battery trough is greater than the height dimension, and the battery trough includes a plurality of accommodating cavities, a plurality of positive plates, negative plates, and a separator between the positive plates and the negative plates are stacked in each accommodating cavity along the length direction of the battery trough, and the pole ears of the positive plates and the negative plates are both facing upwards, the pole ears of the positive plates are connected upwards to the positive bus bar, and the pole ears of the negative plates are connected upwards to the negative bus bar, and the battery cover is provided with a plurality of pairs of positive terminals and negative terminals arranged side by side, the positive terminals are connected to the positive bus bar, and the negative terminals are connected to the negative bus bar; the plurality of accommodating cavities are arranged according to They are arranged in parallel in the battery slot, and the horizontal cross-section of each accommodating cavity is rectangular, and a partition wall is provided between adjacent accommodating cavities to separate the accommodating cavities from each other; a notch is provided on the partition wall, and the notch has a symmetrical structure, which is located in the middle part of the upper part of the partition wall, and the positive bus and the negative bus are passed through the notch; the partition wall is also provided with a plurality of vertically spaced ribs and a plurality of liquid-permeating holes, the upper part of each rib is arc-shaped to reduce the difficulty of installation, and the plurality of liquid-permeating holes are arranged in groups, and each group of liquid-permeating holes is arranged vertically and located between two adjacent ribs.
2. The large-capacity storage battery according to claim 1, characterized in that: The middle part of the bottom of the notch is concave to form a notch, and the notch makes way for electrolyte flow.
3. The large-capacity storage battery according to claim 1, characterized in that: The positive bus and the negative bus are respectively provided with a plurality of positive protrusions and negative protrusions, the number of the positive protrusions and the negative protrusions matches the number of the accommodating cavities, each positive protrusion and negative protrusion corresponds to a positive terminal and a negative terminal, so that each accommodating cavity corresponds to a pair of positive terminals and negative terminals.
4. The large-capacity storage battery according to claim 1, characterized in that: The battery slot is rectangular, and a plurality of vertically arranged convex ribs are provided on the outer side wall thereof. The convex ribs are located at the corners of the rectangle and at the middle part of the side wall in the length direction.
5. The large-capacity storage battery according to claim 1, characterized in that: The battery cover is provided with a plurality of integral valves, each integral valve being located between each pair of negative terminals and positive terminals and serving as an electrolyte addition port and a gas discharge port.