CN220604910U - Battery with built-in circuit board module - Google Patents
Battery with built-in circuit board module Download PDFInfo
- Publication number
- CN220604910U CN220604910U CN202322281734.9U CN202322281734U CN220604910U CN 220604910 U CN220604910 U CN 220604910U CN 202322281734 U CN202322281734 U CN 202322281734U CN 220604910 U CN220604910 U CN 220604910U
- Authority
- CN
- China
- Prior art keywords
- battery
- circuit board
- board module
- steel shell
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 5
- 229910052744 lithium Inorganic materials 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 150000002641 lithium Chemical class 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
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery with a built-in circuit board module, which comprises a cylindrical battery steel shell, wherein the upper end of the battery steel shell is opened, and a battery core, a battery cap assembly and the circuit board module are sequentially arranged in the battery steel shell from bottom to top along the axial direction of the battery steel shell; a first boss protruding inwards is arranged at the position of the battery steel shell between the battery cell and the battery cap assembly, a second boss protruding inwards is arranged at the position of the battery steel shell between the battery cap assembly and the circuit board module, and the second boss and the first boss respectively compress the battery cap assembly up and down; the upper edge of the shell wall of the battery steel shell extends to the upper side of the circuit board module and is inwards bent to form an inward flanging, and the inward flanging and the second boss respectively compress the circuit board module up and down. The utility model has simple structure and can solve the defect that the whole battery with the circuit board module is scrapped or the circuit board module can be reused after being disassembled due to the defect of the battery core in the prior art.
Description
Technical Field
The present utility model relates to the field of batteries, and more particularly, to a battery with a built-in circuit board module.
Background
Currently, a lithium rechargeable battery with a voltage of 1.5V on the market is formed by placing a soft package lithium battery into a steel shell, adding a voltage stabilizing circuit board module (i.e. a voltage stabilizing circuit is arranged on the circuit board module), and finally placing a cap to seal. The soft package lithium battery comprises an aluminum plastic film soft package and a winding type battery cell encapsulated in the aluminum plastic film soft package. The aluminum plastic film soft package occupies a certain steel shell inner space. Therefore, the above-mentioned conventional lithium battery assembly method may result in low utilization of the inner space of the steel can, reduced capacity of the battery in actual use, and small expansion space for charging.
To solve the above problems, chinese patent publication No. CN216133921U discloses a sealing structure of a lithium battery, which includes a circuit board module. When the sealing structure is used, the coiled battery cell is directly placed into the steel shell, and then is sealed through the sealing structure, no aluminum plastic soft package is arranged in the steel shell, and the utilization rate of the internal space of the steel shell is improved. However, the above-mentioned patent has the following drawbacks: (1) The circuit board module is directly assembled in the battery, and after the battery is sealed, the battery is defective due to the defect of the winding type battery core, so that the whole battery and the circuit board module can be scrapped, or the circuit board module can be reused after being disassembled; (2) the structure is complex.
Disclosure of Invention
The utility model aims to provide a battery with a built-in circuit board module, which has a simple structure, and the circuit board module is arranged outside a battery cap assembly, so that the battery can be tested and confirmed to be qualified after the battery cap assembly is arranged, and the circuit board module is assembled after the battery is confirmed to be qualified, so that the defect that the whole battery together with the circuit board module is scrapped or the circuit board module can be reused after the circuit board module is disassembled due to the battery core defect in the prior art is overcome.
The battery with the built-in circuit board module comprises a cylindrical battery steel shell, wherein the upper end of the battery steel shell is opened, and a battery core, a battery cap assembly and the circuit board module are sequentially arranged in the battery steel shell from bottom to top along the axial direction of the battery steel shell; a first boss protruding inwards is arranged at the position, located between the battery core and the battery cap assembly, of the battery steel shell, a second boss protruding inwards is arranged at the position, located between the battery cap assembly and the circuit board module, of the battery steel shell, the first boss and the second boss are formed by inwards bending the shell wall of the battery steel shell, and the second boss and the first boss respectively compress the battery cap assembly up and down; the upper edge of the shell wall of the battery steel shell extends to the upper side of the circuit board module and is inwards bent to form an inner flanging, and the inner flanging and the second boss respectively compress the circuit board module up and down.
When the battery with the built-in circuit board module is manufactured, the battery core is directly placed into the battery steel shell, and sealing is realized by primary binding (namely, the process of forming the first boss), electrolyte is injected into the battery steel shell, and after the electrolyte injection is completed, the battery cap assembly is filled and secondary binding (namely, the process of forming the second boss) is carried out; and then, the circuit board module is installed, and the upper edge of the shell wall of the battery steel shell is further inwards bent to form an inward flanging, so that the final sealing is completed. Therefore, compared with the existing embedded soft package battery and capacitor battery, the utility model improves the space utilization rate of the battery, can effectively improve the battery capacity, simplifies the assembly process, and simultaneously simplifies the manufacturing process of the battery with the built-in circuit board module, and the manufactured battery has simpler structure. In addition, the battery cap assembly is installed, the battery is sealed, the condition for testing whether the battery is qualified is provided, and the scrapped loss of the circuit board module or the trouble of disassembling the circuit board module caused by unqualified battery is avoided.
Further, the first boss and the second boss are annular, a sealing section is formed, and the first boss and the second boss can be compressed, so that the height is reduced.
Further, the battery cell is a winding type battery cell. The circuit board module is provided with a voltage stabilizing circuit and the like. When the battery is a lithium rechargeable battery, the circuit board module plays a role in outputting the voltage of the battery at a constant voltage.
Further, the battery steel shell is cylindrical, and the battery cap assembly is disc-shaped. The battery with the built-in circuit board module may be a cylindrical lithium rechargeable battery.
The battery cap assembly preferably adopts an explosion-proof cap, and comprises an insulating shell, and a cap top cover, a safety gasket, an explosion-proof piece and a ventilation plate which are sequentially arranged in the insulating shell from top to bottom. When the battery is out of control, a large amount of gas can be generated in the battery, the explosion-proof piece can be opened in time to remove the gas, and when the temperature exceeds a section of temperature limit, the resistance value of the safety gasket is rapidly increased, the connection is cut off, the explosion of the battery is prevented, and the safety performance of the battery is improved.
Further, the top end of the battery core extends out of an electrode tab, the bottom end of the battery core extends out of another electrode tab, the electrode tab is electrically connected with the top cover of the cap, and the other electrode tab is electrically connected with the battery steel shell. In the implementation process, the electrode tab is welded with the bottom of the ventilation plate, and the other electrode tab is welded with the bottom of the battery steel shell.
Further, a metal conductive block is arranged on the outer peripheral wall of the circuit board module, and the metal conductive block is in physical contact with the inner peripheral wall of the battery steel shell to realize conductive connection.
Further, a cap made of metal is attached to the top surface of the circuit board module, and the cap serves as one electrode terminal of the battery.
Drawings
Fig. 1 is a schematic axial sectional structure of a battery with a built-in circuit board module according to the present utility model.
Description of the embodiments
Specific embodiments of a battery with a built-in circuit board module according to the present utility model will now be described with reference to the accompanying drawings:
as shown in fig. 1, taking a cylindrical lithium rechargeable battery as an example, the battery comprises a cylindrical battery steel shell 10, wherein the upper end of the battery steel shell 10 is opened, and an electric core 20, a battery cap assembly 30 and a circuit board module 40 are sequentially arranged in the battery steel shell 10 from bottom to top along the axial direction of the battery steel shell; a first boss 11 protruding inwards is arranged at the position, between the battery cell 20 and the battery cap assembly 30, of the battery steel shell 10, a second boss 12 protruding inwards is arranged at the position, between the battery cap assembly 30 and the circuit board module 40, of the battery steel shell 10, the first boss 11 and the second boss 12 are formed by inwards bending the shell wall of the battery steel shell 10, and the second boss 12 and the first boss 11 respectively compress the battery cap assembly 30 up and down; the upper edge of the shell wall of the battery steel shell 10 extends to the upper side of the circuit board module 40 and is inwards bent to form an inner flanging 13, and the inner flanging 13 and the second boss 12 respectively compress the circuit board module 40 up and down;
the battery cell 20 is a winding type battery cell;
the battery steel shell 10 is cylindrical, and the battery cap assembly 30 is disc-shaped;
the circuit board module 40 is provided with a voltage stabilizing circuit;
the battery cap assembly 30 adopts an explosion-proof cap, and comprises an insulating shell 31, and a cap top cover 32, a safety gasket 33, an explosion-proof sheet 34 and a ventilation plate 35 which are sequentially arranged in the insulating shell 31 from top to bottom.
When the battery is manufactured, the battery core 20 is directly placed into the battery steel shell 10, and sealing is realized by primary wire binding (namely, the process of forming the first boss 11), electrolyte is injected into the battery steel shell 10, and after the electrolyte injection is completed, the battery steel shell is filled with the battery cap assembly 30 and then secondary wire binding (namely, the process of forming the second boss 12); and then, the circuit board module 40 is installed again, and the upper edge of the shell wall of the battery steel shell 10 is further bent inwards to form an inward flanging 13, so that the final sealing is completed.
The utility model not only has no aluminum plastic soft package in the battery steel shell 10, improves the space utilization rate of the battery and is beneficial to improving the battery capacity, but also simplifies the manufacturing process of the lithium battery with the built-in circuit board module 40, and the manufactured lithium battery has simpler structure. In addition, the battery is sealed after the battery cap assembly 30 is installed, and the condition for testing whether the battery is qualified is provided, so that the scrapped loss of the circuit board module 40 or the trouble of disassembling the circuit board module 40 caused by the disqualification of the battery is avoided. Therefore, the utility model provides a constant-voltage output lithium rechargeable battery which is safe, high in capacity and has standard types and standard voltages.
Of course, the battery cell 20 of the battery with the built-in circuit board module of the present utility model may be, but not limited to, a winding type battery cell as shown in the drawings, and may be a battery cell structure as in the conventional alkaline battery; meanwhile, the utility model is also not limited to the battery steel shell 10 being cylindrical, and the battery cap assembly 30 being disc-shaped; the structure of the explosion-proof cap of the battery cap assembly 30 shown in the drawings of the present utility model is the explosion-proof cap structure of the existing 18650 battery, and the structure of the explosion-proof cap of the battery cap assembly 30 is not limited to the specific structure in the drawings, and may be any existing explosion-proof cap structure suitable for a cylindrical battery, for example, the explosion-proof cap disclosed in the chinese patent with the publication number CN 219180736U.
As shown in fig. 1, the top end of the battery cell 20 extends out of one electrode tab 21, the bottom end extends out of the other electrode tab 22, the one electrode tab 21 is electrically connected with the cap top cover 32, and the other electrode tab 22 is electrically connected with the battery steel can 10. In the specific implementation process, as shown in fig. 1, the one electrode tab 21 is welded to the bottom of the ventilation plate 35, and the other electrode tab 22 is welded to the bottom of the battery steel can 10.
As shown in fig. 1, a metal conductive block 41 is disposed on the outer peripheral wall of the circuit board module 40, and the metal conductive block 41 is in physical contact with the inner peripheral wall of the battery steel case 10 to realize conductive connection.
As shown in fig. 1, a cap 50 made of metal is attached to the top surface of the circuit board module 40, and the cap 50 serves as one electrode terminal of the battery.
It should be understood by those skilled in the art that the present utility model may be embodied in many different forms without departing from the spirit or essential characteristics thereof.
Claims (9)
1. The utility model provides a battery of built-in circuit board module, includes the battery steel casing of tube-shape, battery steel casing upper end opens and sets up, its characterized in that: the battery steel shell is internally provided with a battery core, a battery cap assembly and a circuit board module from bottom to top in sequence along the axial direction of the battery steel shell; a first boss protruding inwards is arranged at the position, located between the battery core and the battery cap assembly, of the battery steel shell, a second boss protruding inwards is arranged at the position, located between the battery cap assembly and the circuit board module, of the battery steel shell, the first boss and the second boss are formed by inwards bending the shell wall of the battery steel shell, and the second boss and the first boss respectively compress the battery cap assembly up and down; the upper edge of the shell wall of the battery steel shell extends to the upper side of the circuit board module and is inwards bent to form an inner flanging, and the inner flanging and the second boss respectively compress the circuit board module up and down.
2. The battery with a built-in circuit board module according to claim 1, wherein: the first boss and the second boss are annular.
3. The battery with a built-in circuit board module according to claim 1, wherein: the battery cap assembly preferably adopts an explosion-proof cap, and comprises an insulating shell, and a cap top cover, a safety gasket, an explosion-proof piece and a ventilation plate which are sequentially arranged in the insulating shell from top to bottom.
4. A battery with a built-in circuit board module according to claim 3, wherein: the top end of the battery core extends out of an electrode tab, the bottom end of the battery core extends out of another electrode tab, the electrode tab is electrically connected with the cap top cover of the battery cap assembly, and the other electrode tab is electrically connected with the battery steel shell.
5. The battery with a built-in circuit board module according to claim 4, wherein: and one electrode tab is welded with the bottom of the ventilation plate, and the other electrode tab is welded with the bottom of the battery steel shell.
6. The battery with a built-in circuit board module according to claim 1, wherein: and a metal conductive block is arranged on the outer peripheral wall of the circuit board module, and the metal conductive block is in physical contact with the inner peripheral wall of the battery steel shell.
7. The battery with a built-in circuit board module according to claim 1, wherein: the top surface of the circuit board module is connected with a metal cap.
8. The battery with a built-in circuit board module according to claim 1, wherein: the battery cell is a winding battery cell; and the circuit board module is provided with a voltage stabilizing circuit.
9. The battery with a built-in circuit board module according to claim 1, wherein: the battery steel shell is cylindrical, and the battery cover cap component is disc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281734.9U CN220604910U (en) | 2023-08-24 | 2023-08-24 | Battery with built-in circuit board module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281734.9U CN220604910U (en) | 2023-08-24 | 2023-08-24 | Battery with built-in circuit board module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220604910U true CN220604910U (en) | 2024-03-15 |
Family
ID=90173418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322281734.9U Active CN220604910U (en) | 2023-08-24 | 2023-08-24 | Battery with built-in circuit board module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220604910U (en) |
-
2023
- 2023-08-24 CN CN202322281734.9U patent/CN220604910U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101431164B (en) | Secondary battery and method of manufacture | |
| CN109449320B (en) | Button cell shell structure, button cell and consumer | |
| JP2010520580A (en) | Battery and battery seal assembly for easy assembly | |
| EP3968422A1 (en) | Button battery and manufacturing method therefor | |
| US20040142237A1 (en) | Alkaline storage battery and method | |
| CN114142079A (en) | Cylindrical battery and manufacturing method thereof | |
| US11189880B2 (en) | Feed-through forming a terminal for a metal-ion electrochemical accumulator, integrating a gas relief valve, associated accumulator | |
| CN1423360A (en) | Method for making secondary cell | |
| CN109301104B (en) | Cap assembly for cylindrical battery and cylindrical secondary battery | |
| JPH1083827A (en) | Rolled type electrode plate unit and its manufacture | |
| CN220604910U (en) | Battery with built-in circuit board module | |
| JP2010520579A (en) | Improved battery seal assembly and battery | |
| CN101083339A (en) | Cylindrical lithium secondary battery and method of manufacturing the same | |
| CN216720012U (en) | Cylindrical battery | |
| CN214625192U (en) | Battery cover plate and battery | |
| JP2002343316A (en) | Secondary battery and manufacturing method | |
| JP2001176455A (en) | Cylindrical secondary battery | |
| CN211605325U (en) | Packaging insulation structure of rechargeable lithium battery | |
| JP2004303739A (en) | Rectangular non-aqueous electrolyte battery | |
| KR20080087345A (en) | Rechargeable battery | |
| KR20080013211A (en) | Cap assembly and rechargeable battery using this same and assembly method of cap assembly | |
| CN214957009U (en) | Square aluminum shell battery and battery module thereof | |
| KR20060118298A (en) | Secondary battery and the same using method | |
| CN220774647U (en) | Rechargeable battery structure | |
| CN213071225U (en) | Battery with space ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |