CN220272679U - Portable energy storage battery structure - Google Patents
Portable energy storage battery structure Download PDFInfo
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- CN220272679U CN220272679U CN202320706693.0U CN202320706693U CN220272679U CN 220272679 U CN220272679 U CN 220272679U CN 202320706693 U CN202320706693 U CN 202320706693U CN 220272679 U CN220272679 U CN 220272679U
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- energy storage
- nickel
- storage battery
- portable energy
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- 238000004146 energy storage Methods 0.000 title claims abstract description 27
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 112
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 56
- 230000007248 cellular mechanism Effects 0.000 claims abstract description 31
- 238000005452 bending Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 101100100146 Candida albicans NTC1 gene Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a portable energy storage battery structure, which comprises an upper bracket, a lower bracket and a battery cell mechanism embedded in the upper bracket and the lower bracket, wherein the battery cell mechanism comprises side battery cell groups positioned at two sides and a plurality of middle battery cell groups positioned in the middle; the side cell groups on two sides are respectively connected with the total positive electrode or the total negative electrode of the cell mechanism through first nickel plates, the first nickel plates are of a bent double-layer structure, and a plurality of middle cell groups of the cell mechanism are respectively connected with second nickel plates. Through the structural design of the first nickel sheet is a bending double-layer structure, the nickel sheets are converged uniformly, so that the current of the total anode or the total cathode is converged to the bending part of the first nickel sheet, the bending double-layer process ensures that the battery cell cannot be overloaded, the temperature of the battery cell and the temperature of the nickel sheet do not exceed the maximum temperature of the battery cell, and the reliability of the whole battery system is ensured.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a portable energy storage battery structure.
Background
Due to market demands, with the development of society, the demand of portable energy storage power sources is also gradually revealed. The outdoor electricity utilization problem, the equipment electricity preparation problem and the power failure problem, and the problem that the outdoor remote areas are limited in regions and the like cannot work due to no electricity, can influence our life.
The nickel piece design of current portable energy storage battery is conventional design, and the direct connection is to total positive pole and total negative pole, and the uneven that converges for the current of total positive pole, total negative pole of electric core group is too big, and electric core group produces the overload easily, and the temperature of electric core and nickel piece surpasses the maximum temperature of electric core, influences electric core performance and cycle life easily.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a portable energy storage battery structure, which can prevent overload of a battery cell and prolong the service life of the battery cell.
In view of the object, the utility model provides a portable energy storage battery structure, which comprises an upper bracket, a lower bracket and a battery cell mechanism embedded in the upper bracket and the lower bracket, wherein the battery cell mechanism comprises side battery cell groups positioned at two sides and a plurality of middle battery cell groups positioned in the middle;
the side cell groups on two sides are respectively connected with the total positive electrode or the total negative electrode of the cell mechanism through first nickel plates, the first nickel plates are of a bent double-layer structure, and a plurality of middle cell groups of the cell mechanism are respectively connected with second nickel plates.
Further, the first nickel sheet comprises a first connecting sheet and a second connecting sheet which are integrally formed, the first connecting sheet is connected with a plurality of electric cores on the side face, and the second connecting sheet is connected with a total positive electrode or a total negative electrode; the first nickel sheet is bent along an extension line of the notch structure.
Further, a PC insulating sheet is arranged between the first connecting sheet and the second connecting sheet, the PC insulating sheet is fixed on the first connecting sheet in a pasting mode, and when the first nickel sheet is in a bending state, the inner side surface of the second connecting sheet and one surface, far away from the first connecting sheet, of the PC insulating sheet are fixed in a pasting mode.
Further, the notch structure at the joint of the first connecting sheet and the second connecting sheet is V-shaped.
Further, an NTC line card for fixing the NTC line is arranged between every two intermediate cell groups.
Further, each NTC wire is used for detecting one of the battery cell groups.
Further, the upper bracket is fixedly connected with the upper PC insulating sheet, and the lower bracket is fixedly connected with the lower PC insulating sheet.
Further, the lower bracket is fixedly connected with the lower PC insulating sheet through a knurled barrel nut.
Further, a BMS protection plate is fixedly connected to one side face of the long side of the battery cell mechanism.
Further, an exhaust fan is arranged on one side face of the short side of the battery cell mechanism.
The utility model has the beneficial effects that: the embodiment of the utility model provides a portable energy storage battery structure, which comprises an upper bracket, a lower bracket and a battery cell mechanism embedded in the upper bracket and the lower bracket, wherein the battery cell mechanism comprises side battery cell groups positioned at two sides and a plurality of middle battery cell groups positioned in the middle; the side cell groups on two sides are respectively connected with the total positive electrode or the total negative electrode of the cell mechanism through first nickel plates, the first nickel plates are of a bent double-layer structure, and a plurality of middle cell groups of the cell mechanism are respectively connected with second nickel plates. Through the structural design of the first nickel sheet is a bending double-layer structure, the nickel sheets are converged uniformly, so that the current of the total anode or the total cathode is converged to the bending part of the first nickel sheet, the bending double-layer process ensures that the battery cell cannot be overloaded, the temperature of the battery cell and the temperature of the nickel sheet do not exceed the maximum temperature of the battery cell, and the reliability of the whole battery system is ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is an exploded view 1 of a portable energy storage battery structure according to an embodiment of the present utility model;
fig. 2 is an exploded view 2 of a portable energy storage battery structure according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a battery core mechanism of a portable energy storage battery structure according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a first nickel sheet of a portable energy storage battery structure according to an embodiment of the present utility model.
In the figure: 1. an upper bracket; 2. a lower bracket; 3. a cell mechanism; 30. a side cell group; 31. an intermediate cell group; 4. a first nickel plate; 40. a first connecting piece; 41. a second connecting piece; 42. a notch structure; 5. a second nickel plate; 6. a PC insulating sheet; 7. an NTC line card; 70. an NTC line; 8. a PC insulating sheet is arranged on the upper surface of the upper surface; 9. a lower PC insulating sheet; 10. a knurled barrel nut; 11. BMS protection board; 12. and a fan.
Detailed Description
The embodiment of the utility model provides a portable energy storage battery structure, which is used for preventing an electric core from being overloaded and prolonging the service life of the electric core.
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Examples:
aiming at the problems in the prior art, the utility model designs a portable energy storage battery structure, which can prevent the overload of a battery cell and prolong the service life of the battery cell.
Fig. 1 is an exploded view of a portable energy storage battery structure, as shown in fig. 1-4, comprising an upper bracket 1, a lower bracket 2, and a cell mechanism 3 embedded in the upper bracket 1 and the lower bracket 2, wherein the cell mechanism 3 comprises side cell groups 30 positioned at two sides of the cell mechanism and a plurality of middle cell groups 31 positioned in the middle;
the side cell groups 30 on two sides are respectively connected with the total positive electrode or the total negative electrode of the cell mechanism 3 through the first nickel plates 4, the first nickel plates 4 are of a bending double-layer structure, and a plurality of middle cell groups 31 of the cell mechanism 3 are respectively connected with the second nickel plates 5.
In this specific embodiment, the battery structure adopts the combination of the upper bracket 1, the lower bracket 2, the electric core mechanism 3 and the nickel sheet, and is fastened by the lock screw, so that the assembly efficiency is high, the assembly is foolproof, the side electric core group 30 in the electric core mechanism 3 comprises 5 cylindrical batteries, the middle electric core group 31 comprises 10 cylindrical batteries, and the number of the cylindrical batteries in other embodiments is not limited. The two sides are respectively provided with a group of side cell groups 30, one side of each side cell group 30 is connected with the total positive electrode of the whole cell mechanism 3 through a first nickel sheet 4, the other group of side cell groups 30 is connected with the total negative electrode of the whole cell mechanism 3, the middle cell groups 31 are connected in series through a second nickel sheet 5 and are connected in series with the side cell groups 30 on the two sides, the structure of the first nickel sheet 4 is designed into a bending double-layer structure, the nickel sheets are converged uniformly, so that the current of the total positive electrode or the total negative electrode is converged to the bending part of the first nickel sheet 4, the bending double-layer process ensures that the cell cannot be overloaded, the temperature of the cell and the nickel sheet does not exceed the maximum temperature of the cell, the multiplying power charge and discharge current of the cell does not exceed 720W, the first nickel sheet 4 is designed to have an 80A large current discharge function and a single cylindrical cell short-circuit fuse protection function by adopting a laser spot welding process, and the reliability of the whole battery system is ensured.
Further, the first nickel sheet 4 includes a first connecting sheet 40 and a second connecting sheet 41 that are integrally formed, the first connecting sheet 40 is connected to the side cell group 30, and the second connecting sheet 41 is connected to the total positive electrode or the total negative electrode; the connection part of the first connecting piece 40 and the second connecting piece 41 forms a notch structure 42, and the first nickel piece 4 is bent along the extension line of the notch structure 42.
Specifically, the first nickel sheet 4 includes an integrally formed first connecting sheet 40 and a second connecting sheet 41, the first connecting sheet 40 is connected with the positive electrode or the negative electrode of the side cell group 30, a notch structure 42 is formed at the connection position of the first connecting sheet 40 and the second connecting sheet 41, and the current of the total positive electrode or the total negative electrode is converged to the notch structure 42, so that the current of the first nickel sheet 4 is converged uniformly, and the first connecting sheet 40 and the second connecting sheet 41 can be folded along the notch structure 42 to form a two-layer structure.
In this embodiment, the currents of the 5 groups of cells are converged to the first connecting piece 40 below the first nickel piece 4, and then converged to the total positive electrode or the total negative electrode through the second connecting piece 41, so that all the currents are prevented from passing through the first side cell group 30 first, and the overload heating of the side cell group 30 is prevented from affecting the performance of the whole cell mechanism 3.
Further, a PC insulating sheet 6 is disposed between the first connecting sheet 40 and the second connecting sheet 41, and the PC insulating sheet 6 is fixed on the first connecting sheet 40 in a pasting manner, and when the first nickel sheet 4 is in a bending state, an inner side surface of the second connecting sheet 41 and a surface of the PC insulating sheet 6 away from the first connecting sheet 40 are fixed in a pasting manner.
Specifically, after the first nickel sheet 4 is bent, the first connecting sheet 40 and the second connecting sheet 41 are isolated through the double-sided adhesive PC insulating sheet 6, so that current can flow into the notch structure 42 and then flow into the total positive electrode or the total negative electrode, and the first connecting sheet 40 and the second connecting sheet 41 are prevented from being overlapped together, so that the effect of converging cannot be achieved.
Further, the notch structure 42 at the connection point of the first connecting piece 40 and the second connecting piece 41 is V-shaped.
Specifically, the notch structure 42 at the connection of the first connecting piece 40 and the second connecting piece 41 has a small V shape, and better converging.
Further, an NTC wire card 7 for fixing the NTC wire 70 is disposed between every two intermediate cell groups 31.
Specifically, the temperature of different positions of the battery core mechanism 3 is detected through the NTC, and the battery core mechanism has the functions of high temperature protection and low temperature protection of charge and discharge.
Further, each of the NTC wires 70 is used to detect one of the cell groups.
Specifically, the NTC wire clip 7 is used to fix the NTC wire. The usage amount of high-temperature glue can be reduced through the design of the NTC line card 7, the cost is reduced, the battery pack is attractive and convenient to see, only two batteries NTC are arranged in the conventional power battery pack, the temperature of the surface of a current core is acquired, the abnormal temperature of the battery core of the whole battery core mechanism 3 cannot be accurately detected, the temperature protection cannot rapidly work, the safety coefficient of the battery pack is low, 4 NTCs are designed in the battery core mechanism 3, the NTC1 is used for detecting the B1B 3, the NTC2 is used for detecting the B2B 4, the NTC3 is used for detecting the B4B 6, the NTC4 is used for detecting the temperature of the battery core of each single string, when the abnormal temperature of any battery core is increased, the NTC can accurately detect the temperature of the battery core, and the temperature protection is started when the temperature exceeds the service temperature of the battery core, so that the safety coefficient of the battery pack is greatly improved.
Further, the upper bracket 1 is fixedly connected with the upper PC insulating sheet 8, and the lower bracket 2 is fixedly connected with the lower PC insulating sheet 9.
Specifically, an upper PC insulating sheet 8 and a lower PC insulating sheet 9 are respectively disposed on the outer sides of the upper bracket 1 and the lower bracket 2, thereby playing a role in protection.
Further, the lower bracket 2 is fixedly connected with the outer shell through a knurled barrel nut 10.
In addition, not shown in the housing figure is connected by a knurled barrel nut 10.
Further, a BMS protection plate 11 is fixedly connected to one side of the long side of the battery core mechanism 3.
Specifically, by disposing the BMS protection plate 11 on one side of the long side of the cell mechanism 3, the electrical safety of the cell mechanism 3 is better protected.
Furthermore, exhaust fans 12 are arranged on two lateral sides of the short side of the battery core mechanism 3.
Specifically, forced convection heat dissipation is performed by the exhaust fan 12
In summary, the embodiment of the utility model provides a portable energy storage battery structure, which comprises an upper bracket, a lower bracket and a battery core mechanism embedded in the upper bracket and the lower bracket, wherein the battery core mechanism comprises side battery core groups positioned at two sides and a plurality of middle battery core groups positioned in the middle; the side cell groups on two sides are respectively connected with the total positive electrode or the total negative electrode of the cell mechanism through first nickel plates, the first nickel plates are of a bent double-layer structure, and a plurality of middle cell groups of the cell mechanism are respectively connected with second nickel plates. Through the structural design of the first nickel sheet is a bending double-layer structure, the nickel sheets are converged uniformly, so that the current of the total anode or the total cathode is converged to the bending part of the first nickel sheet, the bending double-layer process ensures that the battery cell cannot be overloaded, the temperature of the battery cell and the temperature of the nickel sheet do not exceed the maximum temperature of the battery cell, and the reliability of the whole battery system is ensured.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The portable energy storage battery structure is characterized by comprising an upper bracket (1), a lower bracket (2) and a battery cell mechanism (3) embedded in the upper bracket (1) and the lower bracket (2), wherein the battery cell mechanism (3) comprises side battery cell groups (30) positioned at two sides and a plurality of middle battery cell groups (31) positioned in the middle;
the side battery cell groups (30) on two sides are respectively connected with the total positive electrode or the total negative electrode of the battery cell mechanism (3) through first nickel plates (4), the first nickel plates (4) are of a bending double-layer structure, and a plurality of middle battery cell groups (31) of the battery cell mechanism (3) are respectively connected with the second nickel plates (5).
2. Portable energy storage battery structure according to claim 1, characterized in that the first nickel sheet (4) comprises a first connecting sheet (40) and a second connecting sheet (41) which are integrally formed, the first connecting sheet (40) is connected with a plurality of electric cells on the side face, and the second connecting sheet (41) is connected with a total positive electrode or a total negative electrode; a notch structure (42) is formed at the joint of the first connecting sheet (40) and the second connecting sheet (41), and the first nickel sheet (4) is bent along the extension line of the notch structure (42).
3. The portable energy storage battery structure according to claim 2, wherein a PC insulating sheet (6) is disposed between the first connecting sheet (40) and the second connecting sheet (41), the PC insulating sheet (6) is adhered and fixed on the first connecting sheet (40), and when the first nickel sheet (4) is in a bent state, an inner side surface of the second connecting sheet (41) and a surface of the PC insulating sheet (6) away from the first connecting sheet (40) are adhered and fixed.
4. Portable energy storage battery structure according to claim 2, characterized in that the notch structure (42) at the junction of the first connecting piece (40) and the second connecting piece (41) is V-shaped.
5. Portable energy storage battery structure according to claim 1, characterized in that an NTC line card (7) for fixing an NTC line (70) is arranged between every two intermediate cell groups (31).
6. The portable energy storage battery structure according to claim 5, wherein each NTC wire (70) is configured to detect one of the cell groups.
7. The portable energy storage battery structure according to claim 1, wherein the upper bracket (1) is fixedly connected with the upper PC insulating sheet (8), and the lower bracket (2) is fixedly connected with the lower PC insulating sheet (9).
8. The portable energy storage battery structure according to claim 7, characterized in that the lower bracket (2) and the lower PC insulating sheet (9) are fixedly connected by a knurled barrel nut (10).
9. The portable energy storage battery structure according to claim 1, wherein a BMS protection plate (11) is fixedly connected to a long side surface of the electric core mechanism (3).
10. Portable energy storage battery structure according to claim 1, characterized in that the cell arrangement (3) is provided with an exhaust fan (12) on one side of the short side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320706693.0U CN220272679U (en) | 2023-04-03 | 2023-04-03 | Portable energy storage battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320706693.0U CN220272679U (en) | 2023-04-03 | 2023-04-03 | Portable energy storage battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220272679U true CN220272679U (en) | 2023-12-29 |
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ID=89298080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320706693.0U Active CN220272679U (en) | 2023-04-03 | 2023-04-03 | Portable energy storage battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220272679U (en) |
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2023
- 2023-04-03 CN CN202320706693.0U patent/CN220272679U/en active Active
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