CN220233280U - Cylindrical lithium battery cap negative side connecting device with built-in BMS plate - Google Patents
Cylindrical lithium battery cap negative side connecting device with built-in BMS plate Download PDFInfo
- Publication number
- CN220233280U CN220233280U CN202321813486.1U CN202321813486U CN220233280U CN 220233280 U CN220233280 U CN 220233280U CN 202321813486 U CN202321813486 U CN 202321813486U CN 220233280 U CN220233280 U CN 220233280U
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- Prior art keywords
- battery
- cap
- built
- negative
- pcb
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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 26
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 10
- 229910000733 Li alloy Inorganic materials 0.000 claims abstract description 5
- 239000001989 lithium alloy Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052759 nickel Inorganic materials 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 2
- XOMKZKJEJBZBJJ-UHFFFAOYSA-N 1,2-dichloro-3-phenylbenzene Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1Cl XOMKZKJEJBZBJJ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a cylindrical lithium battery cap negative side connecting device with a built-in BMS plate, which comprises an outer shell, wherein the outer shell is of a cylindrical structure as a whole and is made of steel materials; the battery winding core is fixedly arranged in the outer shell and is made of a battery material taking a lithium alloy material as a negative electrode; the top cap that is adduction shape structure is fixed to the shell body upper end, just top cap internally mounted has the plastic support. This take cylinder lithium cell block negative pole side connecting device of built-in BMS board adopts novel structural design, aims at improving the performance and the security of lithium cell. The system stability is improved, the failure rate is reduced, the design cost is saved, the production efficiency is improved, the equipment structure is optimized, the utilization rate of the internal space is improved, the traditional welding connection mode is replaced, the safety and the reliability of the battery are improved, the mass production efficiency of the battery is improved, and the automatic production can be realized.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a cylindrical lithium battery cap negative side connecting device with a built-in BMS plate.
Background
A lithium battery is an electricity storage device, which mainly uses lithium metal or lithium alloy metal as a negative electrode material to charge and discharge through chemical reaction, while a cylindrical lithium battery is a battery similar to a common dry battery, and the lithium battery is a non-disposable battery and can be charged and discharged repeatedly.
Among the prior art, the chinese patent of the bulletin number CN208622786U of authorizing discloses a flexible package cylinder lithium cell, including the device body, device body both ends top symmetry is provided with positive plate and negative plate, the hob is installed respectively in device body one side to positive plate and negative plate, device body both ends are fixed with the spiral shell respectively, the insulation board outside is provided with the heat dissipation layer, this internal buffer layer that is provided with of device, and be provided with the snubber block in the buffer layer. According to the lithium battery device, the top parts of the two ends of the device are provided with the positive electrode plate and the negative electrode plate, the bottoms of the positive electrode plate and the negative electrode plate are provided with the screw rods, the two ends of the device body are internally provided with the screw sleeves, the positive electrode plate and the negative electrode plate are fixed on the device body through the screw rods and the screw sleeves, and the screw connection is convenient to install and detach, so that the lithium battery is convenient to install and manufacture, the lithium battery is convenient to recover, detach and recycle, and the performance of the device body is not influenced.
The device is not internally provided with a safety detection device when in use, so that the danger can occur due to abnormal connection between the positive electrode and the negative electrode when in use, thereby influencing the normal use of the device.
Disclosure of Invention
The utility model aims to provide a cylindrical lithium battery cap negative side connecting device with a built-in BMS plate, so as to solve the problem of poor safety in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: cylindrical lithium battery cap negative side connecting device of built-in BMS board in area, including shell body, battery roll core, top cap, plastic support, PCB board, anodal hardware cap, anodal aluminum cover and negative pole nickel piece, still include:
the outer shell is of a cylindrical structure as a whole and is made of steel materials;
the battery winding core is fixedly arranged inside the outer shell and is made of a lithium alloy material serving as a battery material of a negative electrode.
Preferably, the top cap with an inward-folding structure is fixedly arranged at the upper end of the outer shell, and a plastic bracket is arranged in the top cap.
Preferably, a clamping structure is formed between the plastic support and the top cap, a PCB is fixedly arranged in the middle of the inside of the plastic support, and the PCB is used for conducting electricity between the positive aluminum cover and the positive hardware cap.
Preferably, the PCB board sets up to be used for detecting battery state's BMS circuit board, just positive pole hardware cap is installed in the laminating of PCB board top, and BMS circuit board can monitor battery's voltage, electric current and temperature to improve battery safety in utilization.
Preferably, an anode aluminum cover is installed under the PCB Fang Tiege, and the anode aluminum cover is electrically connected with the anode hardware cap.
Preferably, an electrical communication structure is formed between the positive aluminum cover and the battery winding core, a negative nickel plate is fixedly welded on the upper surface of the side edge of the PCB, a penetrating structure is formed between the negative nickel plate and the plastic bracket, and the negative nickel plate is integrally in an upward folded bending structure.
Compared with the prior art, the utility model has the beneficial effects that: this take cylinder lithium cell block negative pole side connecting device of built-in BMS board adopts novel structural design, aims at improving the performance and the security of lithium cell. The system stability is improved, the failure rate is reduced, the design cost is saved, the production efficiency is improved, the utilization rate of the internal space is improved by optimizing the equipment structure, and the traditional welding connection mode is replaced, so that the safety and the reliability of the battery are improved, the mass production efficiency of the battery is improved, the automatic production can be realized, and the specific contents are as follows:
1. the cooperation between anodal five metals cap, anodal aluminum cover and the PCB board is used, thereby carries out the positive pole that electric conduction put through the battery core through the PCB board between anodal five metals cap and the anodal aluminum cover to communicate between top cap (put through between with the shell body, the shell body is the negative pole) and the anodal five metals cap, thereby realize the positive and negative pole of battery and connect, replace traditional welded connection.
2. The use of PCB board, through BMS circuit board real time monitoring battery's voltage, electric current, parameters such as temperature to the BMS board can also provide high/low voltage protection, short-circuit protection, overcurrent protection, discharge protection etc. protect function, thereby improves the holistic safety in utilization of battery.
Drawings
FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;
FIG. 2 is an exploded view of the internal structure of the plastic bracket of the present utility model;
FIG. 3 is a schematic cross-sectional elevation view of a plastic stent according to the present utility model;
FIG. 4 is a schematic view of the structure of the positive electrode hardware cap of the utility model;
fig. 5 is a schematic structural diagram of an aluminum cap for an anode of the present utility model.
In the figure: 1. an outer housing; 2. a battery winding core; 3. a top cap; 4. a plastic bracket; 5. a PCB board; 6. positive pole hardware cap; 7. an anode aluminum cover; 8. and a negative electrode nickel sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Referring to fig. 1-5, the present utility model provides the following technical solutions: cylindrical lithium battery cap negative side connecting device of built-in BMS board in area, including shell body 1, battery roll core 2, top cap 3, plastic support 4, PCB board 5, anodal hardware cap 6, anodal aluminium lid 7 and negative pole nickel piece 8, still include: the outer shell 1 is of a cylindrical structure as a whole, and the outer shell 1 is made of steel materials; the battery winding core 2 is fixedly arranged in the outer shell 1, and the battery winding core 2 is made of a battery material taking a lithium alloy material as a negative electrode;
the upper end of the outer shell 1 is fixedly provided with a top cap 3 with an inward-folding structure, a plastic bracket 4 is arranged in the top cap 3, a clamping structure is formed between the plastic bracket 4 and the top cap 3, a PCB 5 is fixedly arranged in the middle of the inside of the plastic bracket 4, the PCB 5 is arranged as a BMS circuit board for detecting the battery state, an anode hardware cap 6 is mounted above the PCB 5 in a fitting manner, an anode aluminum cover 7 is mounted below the PCB 5 in a fitting manner, the anode aluminum cover 7 is electrically conducted with the anode hardware cap 6, an electrical communication structure is formed between the anode aluminum cover 7 and the battery winding core 2, a cathode nickel sheet 8 is fixedly welded on the upper surface of the side edge of the PCB 5, a penetrating structure is formed between the cathode nickel sheet 8 and the plastic bracket 4, and the whole cathode nickel sheet 8 is of an upward-folding bent structure;
when the device is produced, the device is assembled in sequence according to the position shown in fig. 1, then the device is installed in equipment when the device is used, and when the battery is charged and discharged, the voltage, the current and the temperature of the battery are monitored in real time by utilizing the PCB 5, so that the aims of overcharge protection, circuit protection and the like are achieved.
What is not described in detail in this specification belongs to the prior art known to those skilled in the art, and it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Cylindrical lithium battery cap negative side connecting device of built-in BMS board in area, including shell body (1), battery roll up core (2), top cap (3), plastic support (4), PCB board (5), anodal five metals cap (6), anodal aluminum cover (7) and negative pole nickel piece (8), its characterized in that still includes:
the outer shell (1) is of a cylindrical structure as a whole, and the outer shell (1) is made of steel materials;
the battery winding core (2) is fixedly arranged inside the outer shell (1), and the battery winding core (2) is made of a lithium alloy material serving as a battery material of a negative electrode.
2. The cylindrical lithium battery cap negative side connection device with the built-in BMS board according to claim 1, wherein: the top cap (3) with an adduction structure is fixedly arranged at the upper end of the outer shell (1), and a plastic bracket (4) is arranged in the top cap (3).
3. The cylindrical lithium battery cap negative side connection device with the built-in BMS board according to claim 2, wherein: the plastic support (4) and the top cap (3) form a clamping structure, and a PCB (5) is fixedly arranged in the middle of the inside of the plastic support (4).
4. The cylindrical lithium battery cap negative side connection device with a built-in BMS board according to claim 3, wherein: the PCB (5) is arranged as a BMS circuit board for detecting the battery state, and the PCB (5) is provided with a Fang Tiege positive pole hardware cap (6).
5. The cylindrical lithium battery cap negative side connection device with the built-in BMS board according to claim 4, wherein: an anode aluminum cover (7) is arranged below the PCB (5) Fang Tiege, and the anode aluminum cover (7) and the anode hardware cap (6) are electrically conducted.
6. The cylindrical lithium battery cap negative side connection device with the built-in BMS board according to claim 5, wherein: an electric communication structure is formed between the positive aluminum cover (7) and the battery winding core (2), a negative nickel sheet (8) is fixedly welded on the upper surface of the side edge of the PCB (5), a penetrating structure is formed between the negative nickel sheet (8) and the plastic bracket (4), and the negative nickel sheet (8) is integrally of an upward folded bent structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321813486.1U CN220233280U (en) | 2023-07-11 | 2023-07-11 | Cylindrical lithium battery cap negative side connecting device with built-in BMS plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321813486.1U CN220233280U (en) | 2023-07-11 | 2023-07-11 | Cylindrical lithium battery cap negative side connecting device with built-in BMS plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220233280U true CN220233280U (en) | 2023-12-22 |
Family
ID=89196412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321813486.1U Active CN220233280U (en) | 2023-07-11 | 2023-07-11 | Cylindrical lithium battery cap negative side connecting device with built-in BMS plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220233280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117673498A (en) * | 2024-02-02 | 2024-03-08 | 深圳市华美兴泰科技股份有限公司 | Low-voltage lithium battery |
-
2023
- 2023-07-11 CN CN202321813486.1U patent/CN220233280U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117673498A (en) * | 2024-02-02 | 2024-03-08 | 深圳市华美兴泰科技股份有限公司 | Low-voltage lithium battery |
| CN117673498B (en) * | 2024-02-02 | 2024-04-12 | 深圳市华美兴泰科技股份有限公司 | Low-voltage lithium battery |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |