CN113258186A - Power supply system of bipolar welding-free battery cell - Google Patents
Power supply system of bipolar welding-free battery cell Download PDFInfo
- Publication number
- CN113258186A CN113258186A CN202110525926.2A CN202110525926A CN113258186A CN 113258186 A CN113258186 A CN 113258186A CN 202110525926 A CN202110525926 A CN 202110525926A CN 113258186 A CN113258186 A CN 113258186A
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- power supply
- end cover
- battery cell
- fixedly connected
- ring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- 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
Abstract
The invention discloses a power supply system of a bipolar welding-free battery cell, which comprises a power supply shell body, wherein the power supply shell body is formed by sequentially inserting an upper end cover, an upper shell, a lower shell and a lower end cover, the top of the lower end cover is fixedly connected with a negative plate positioned in the lower shell, a first battery cell in contact with the negative plate is arranged in the lower shell, and a connecting plate is fixedly connected in the upper shell. According to the invention, the power supply shell bodies are mutually inserted and extruded, so that the internal space of the upper shell and the lower shell is reduced, and the two ends of the first battery cell and the second battery cell are respectively in close contact with the negative plate, the positive plate and the battery cell connecting mechanism, thereby achieving the effect of welding-free installation of the mobile power supply, and solving the problems that the existing power supply shell and the battery cells are connected in a welding mode, so that a user is inconvenient to replace the battery cells, and the operation and maintenance cost of the mobile power supply is increased.
Description
Technical Field
The invention relates to the technical field of battery cell power supplies, in particular to a power supply system of a bipolar welding-free battery cell.
Background
The mobile power supply and the mobile charger are portable chargers which can be carried about by a person and can store electric energy by themselves, are mainly used for charging consumer electronic products such as handheld mobile equipment and the like, and are particularly applied to occasions without external power supply. The main components of the device comprise: batteries used for electric energy storage, circuits for stabilizing output voltage, and most mobile power supplies with chargers used for charging built-in batteries.
Mobile power supply is mostly connected in series and is stored the electric power energy through a plurality of electric cores, but the connected mode of current power casing and electric core is mostly connected through the welding, and the not convenient to use person changes electric core, leads to mobile power supply operation maintenance cost to increase.
Disclosure of Invention
In order to solve the problems in the background art, the present invention provides a power supply system of a bipolar welding-free battery cell, which has the advantages of bipolar welding-free and easy replacement, and solves the problem that the existing power supply housing is connected with the battery cell by welding, so that the battery cell is inconvenient to replace by a user, and the operation and maintenance cost of a mobile power supply is increased.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a power supply system of bipolar solderless electric core, includes the power shell body, the power shell body is pegged graft in proper order by upper end cover, upper casing, lower casing and lower end cover and is constituteed, the top fixedly connected with of lower end cover is located the inside negative pole piece of casing down, the inside of casing is provided with the first electric core with the negative pole piece contact down, the inside fixedly connected with connecting plate of upper casing, the inside fixedly connected with electric core coupling mechanism of connecting plate, the inside of upper casing is provided with the second electric core that is located the connecting plate top, the bottom of second electric core and the top of first electric core all with electric core coupling mechanism electric connection, the bottom fixedly connected with of upper end cover is located the inside positive plate of upper casing, the bottom of positive plate contacts with the top of second electric core.
Preferably, the cell connecting mechanism comprises an aluminum ring, a sealing ring, an isolating ring, a steel cap, an explosion-proof aluminum sheet, a supporting plate and a connecting aluminum sheet, wherein the sealing ring is fixedly connected inside the connecting plate, the steel cap, the aluminum ring, the explosion-proof aluminum sheet, the supporting plate and the connecting aluminum sheet sequentially slide inside the sealing ring from top to bottom, the isolating ring positioned at the bottom of the explosion-proof aluminum sheet is arranged inside the sealing ring, the extensions of the supporting plate and the connecting aluminum sheet extend into the isolating ring and are clamped with the isolating ring, the top of the first cell is in contact with the surface of the connecting aluminum sheet, and the bottom of the second cell is in contact with the top of the steel cap.
Preferably, rubber pads are fixedly connected to two sides of the upper shell and two sides of the lower shell, the rubber pads are in contact with each other, and one sides of the rubber pads, far away from the upper shell and the lower shell, are in contact with the surfaces of the upper end cover and the lower end cover respectively.
Preferably, the inner side of the sealing ring is provided with an annular bulge, and the bottom of the annular bulge is in contact with the surface of the steel cap.
Preferably, the lower shell is internally provided with a dividing strip positioned on the inner side of the first battery cell, the top of the connecting plate is provided with a limiting ring sleeved on the surface of the second battery cell, and the battery cell connecting mechanism is positioned inside the limiting ring.
Preferably, the top of the upper end cover is provided with a receiving groove, and a heating sheet is clamped in the receiving groove.
Preferably, the left side and the right side of the bottom of the lower end cover are both provided with a connecting wire, and the top end of the connecting wire penetrates through the top of the lower end cover and is fixedly connected with the negative plate.
Preferably, the top of the steel cap is fixedly connected with a plurality of clamping plates which are uniformly arranged in a surrounding manner and surround the surface of the second battery core, and the clamping plates have elasticity.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the power supply shell bodies are mutually inserted and extruded, so that the internal space of the upper shell and the lower shell is reduced, and the two ends of the first battery cell and the second battery cell are respectively in close contact with the negative plate, the positive plate and the battery cell connecting mechanism, thereby achieving the effect of welding-free installation of the mobile power supply, and solving the problems that the existing power supply shell and the battery cells are connected in a welding mode, so that a user is inconvenient to replace the battery cells, and the operation and maintenance cost of the mobile power supply is increased.
2. According to the invention, the battery cell connecting mechanism is composed of the aluminum ring, the sealing ring, the isolating ring, the steel cap, the explosion-proof aluminum sheet, the supporting plate and the connecting aluminum sheet, so that the effect of enabling the mobile power supply to have a single abuse protection mechanism can be achieved, meanwhile, the explosion-proof aluminum sheet can prevent the probability of explosion when the mobile power supply is in short circuit, and the safety of the mobile power supply is greatly improved.
3. According to the invention, the rubber pad is arranged, so that the sealing property of the power supply shell body can be improved, and the application range and the reliability of the power supply shell body are improved.
4. According to the invention, the annular bulge is arranged, so that the internal structure of the sealing ring can be limited, and the situation that the internal structure of the sealing ring is separated from contact due to vibration is avoided.
5. According to the invention, the first battery cell and the second battery cell can be limited by arranging the dividing strips and the limiting rings, so that the first battery cell and the second battery cell can be accurately aligned with the internal electrode of the power supply.
6. According to the invention, the upper end cover can guide the internal temperature of the power supply shell body conveniently by arranging the accommodating groove and the heating sheet, and the heat dissipation effect of the power supply shell body can be greatly improved.
7. According to the invention, by arranging the connecting wires, a user can utilize the electric power of the power supply cells on two sides conveniently, and the operation steps of repeatedly disassembling and using the power supply shell body are reduced.
8. According to the invention, the clamping plate is arranged, so that the second battery cell can be positioned, and the influence of vibration on the connection part of the second battery cell and the battery cell connection mechanism can be reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic cross-sectional view of a front view structure of the present invention;
fig. 4 is a schematic front sectional view of a cell connecting mechanism according to the present invention;
FIG. 5 is a schematic diagram of the circuit structure of the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 3 according to the present invention.
In the figure: 1. a power supply housing body; 2. an upper end cover; 3. an upper housing; 4. a lower housing; 5. a lower end cover; 6. a negative plate; 7. a first cell; 8. a connecting plate; 9. a cell connecting mechanism; 10. a second cell; 11. a positive plate; 901. an aluminum ring; 902. a seal ring; 903. an isolation ring; 904. a steel cap; 905. an explosion-proof aluminum sheet; 906. a support plate; 907. connecting an aluminum sheet; 12. a rubber pad; 13. an annular projection; 14. cutting the strips; 15. a limiting ring; 16. a receiving groove; 17. a heating plate; 18. a connecting wire; 19. and (4) clamping the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to fig. 6, the power supply system of a bipolar welding-free cell provided by the present invention includes a power supply housing body 1, the power supply housing body 1 includes an upper end cover 2 and an upper shell 3, lower casing 4 and lower end cover 5 are pegged graft in proper order and are constituteed, the inside negative pole piece 6 of casing 4 is located down to the top fixedly connected with of lower end cover 5, the inside of casing 4 is provided with the first electric core 7 with negative pole piece 6 contact down, the inside fixedly connected with connecting plate 8 of going up casing 3, the inside fixedly connected with electricity core coupling mechanism 9 of connecting plate 8, the inside of going up casing 3 is provided with the second electricity core 10 that is located the connecting plate 8 top, the bottom of second electricity core 10 and the top of first electricity core 7 all with electricity core coupling mechanism 9 electric connection, the bottom fixedly connected with of upper end cover 2 is located the inside positive plate 11 of casing 3, the bottom of positive plate 11 contacts with the top of second electricity core 10.
Referring to fig. 4, the cell connecting mechanism 9 is composed of an aluminum ring 901, a sealing ring 902, a separation ring 903, a steel cap 904, an explosion-proof aluminum sheet 905, a support plate 906 and a connection aluminum sheet 907, the sealing ring 902 is fixedly connected inside the connection plate 8, the steel cap 904, the aluminum ring 901, the explosion-proof aluminum sheet 905, the support plate 906 and the connection aluminum sheet 907 sequentially slide inside the sealing ring 902 from top to bottom, the separation ring 903 located at the bottom of the explosion-proof aluminum sheet 905 is arranged inside the sealing ring 902, the support plate 906 and the extension of the connection aluminum sheet 907 both extend to the inside of the separation ring 903 and are mutually clamped with the separation ring 903, the top of the first cell 7 is in surface contact with the connection aluminum sheet 907, and the bottom of the second cell 10 is in contact with the top of the steel cap 904.
As a technical optimization scheme of the invention, the battery cell connecting mechanism 9 is composed of the aluminum ring 901, the sealing ring 902, the isolating ring 903, the steel cap 904, the explosion-proof aluminum sheet 905, the supporting plate 906 and the connecting aluminum sheet 907, so that the mobile power supply has the effect of a single abuse protection mechanism, meanwhile, the explosion-proof aluminum sheet 905 can prevent the probability of explosion when the mobile power supply is short-circuited, and the safety of the mobile power supply is greatly improved.
Referring to fig. 2, rubber pads 12 are fixedly connected to both sides of the upper and lower cases 3 and 4, the rubber pads 12 are in contact with each other, and one side of the rubber pads 12 away from the upper and lower cases 3 and 4 is in contact with the surfaces of the upper and lower end caps 2 and 5, respectively.
As a technical optimization scheme of the invention, by arranging the rubber pad 12, the sealing performance of the power supply housing body 1 can be improved, and the application range and the reliability of the power supply housing body 1 can be improved.
Referring to fig. 4, the inner side of the sealing ring 902 is provided with an annular protrusion 13, and the bottom of the annular protrusion 13 is in contact with the surface of the steel cap 904.
As a technical optimization scheme of the invention, the annular protrusion 13 is arranged, so that the internal structure of the sealing ring 902 can be limited, and the situation that the internal structure of the sealing ring 902 is separated from contact due to vibration is avoided.
Referring to fig. 2, the interior of the lower housing 4 is provided with a dividing strip 14 located inside the first battery cell 7, the top of the connecting plate 8 is provided with a limiting ring 15 sleeved on the surface of the second battery cell 10, and the battery cell connecting mechanism 9 is located inside the limiting ring 15.
As a technical optimization scheme of the invention, the first battery cell 7 and the second battery cell 10 can be limited by arranging the dividing strip 14 and the limiting ring 15, so that the first battery cell 7 and the second battery cell 10 can be accurately aligned with internal electrodes of a power supply.
Referring to fig. 3, a receiving groove 16 is formed at the top of the upper end cover 2, and a heating plate 17 is clamped inside the receiving groove 16.
As a technical optimization scheme of the invention, the accommodating groove 16 and the heating sheet 17 are arranged, so that the upper end cover 2 can guide the internal temperature of the power supply shell body 1 conveniently, and the heat dissipation effect of the power supply shell body 1 can be greatly improved.
Referring to fig. 3, the left side and the right side of the bottom of the lower end cover 5 are both provided with a connecting wire 18, and the top end of the connecting wire 18 penetrates through to the top of the lower end cover 5 and is fixedly connected with the negative plate 6.
As a technical optimization scheme of the invention, by arranging the connecting line 18, a user can utilize the electric power of the power supply cells on two sides conveniently, and the operation steps of repeatedly disassembling and using the power supply shell body 1 are reduced.
Referring to fig. 6, the top of the steel cap 904 is fixedly connected with a plurality of clamping plates 19 surrounding the surface of the second battery cell 10, the number of the clamping plates 19 is several, the clamping plates 19 are uniformly arranged in a surrounding manner, and the clamping plates 19 have elasticity.
As a technical optimization scheme of the invention, the clamping plate 19 is arranged to position the second battery cell 10, so that the influence of vibration on the connection between the second battery cell 10 and the battery cell connection mechanism 9 can be reduced.
The working principle and the using process of the invention are as follows: in use, a user firstly installs the lower end cap 5 at the bottom of the lower shell 4, then inserts the first battery cell 7 and the second battery cell 10 into the upper shell 3 and the lower shell 4 respectively, when the bottoms of the first battery cell 7 and the second battery cell 10 are respectively contacted with the negative electrode sheet 6 and the top of the battery cell connecting mechanism 9, with last casing 3 and lower casing 4 peg graft and fix upper end cover 2 at the top of last casing 3, the extrusion of pegging graft each other of structure of constituteing power supply housing body 1, make the inner space of last casing 3 and lower casing 4 reduce, lead to the both ends of first electricity core 7 and second electricity core 10 respectively with negative pole piece 6, positive plate 11 still has electric core coupling mechanism 9 in close contact with, the inside electric power of storing of first electricity core 7 and second electricity core 10 can be through connecting aluminum sheet 907, explosion-proof aluminum sheet 905, the transmission of aluminium ring 901 and steel cap 904 circulates, thereby reach the effect of exempting from to weld the installation to portable power source.
In summary, the following steps: this electrical power generating system of bipolar exempting from to weld electric core, peg graft the extrusion each other through power shell body 1, make the inner space of casing 3 and lower casing 4 reduce, the both ends that lead to first electric core 7 and second electric core 10 respectively with negative pole piece 6, positive plate 11 still has electric core coupling mechanism 9 in close contact with, thereby reach the effect of exempting from to weld the installation to portable power source, the connected mode of having solved current power shell and electric core is connected through the welding more, the person of not being convenient for changes electric core, lead to the problem that mobile power source operation maintenance cost increases.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a power supply system of bipolar solderless electric core, includes power supply housing body (1), its characterized in that: the power supply shell body (1) is formed by sequentially inserting an upper end cover (2), an upper shell body (3), a lower shell body (4) and a lower end cover (5), a negative plate (6) positioned in the lower shell body (4) is fixedly connected to the top of the lower end cover (5), a first electric core (7) contacted with the negative plate (6) is arranged in the lower shell body (4), a connecting plate (8) is fixedly connected to the inside of the upper shell body (3), an electric core connecting mechanism (9) is fixedly connected to the inside of the connecting plate (8), a second electric core (10) positioned at the top of the connecting plate (8) is arranged in the upper shell body (3), the bottom of the second electric core (10) and the top of the first electric core (7) are both electrically connected with the electric core connecting mechanism (9), a positive plate (11) positioned in the upper shell body (3) is fixedly connected to the bottom of the upper end cover (2), the bottom of the positive plate (11) is in contact with the top of the second battery cell (10).
2. The power supply system of the bipolar welding-free cell of claim 1, wherein: the battery core connecting mechanism (9) consists of an aluminum ring (901), a sealing ring (902), an isolating ring (903), a steel cap (904), an explosion-proof aluminum sheet (905), a supporting plate (906) and a connecting aluminum sheet (907), the sealing ring (902) is fixedly connected inside the connecting plate (8), the steel cap (904), the aluminum ring (901), the explosion-proof aluminum sheet (905), the supporting plate (906) and the connecting aluminum sheet (907) sequentially slide inside the sealing ring (902) from top to bottom, an isolating ring (903) positioned at the bottom of the explosion-proof aluminum sheet (905) is arranged in the sealing ring (902), the supporting plate (906) and the connecting aluminum sheet (907) extend to the inside of the isolation ring (903) and are clamped with the isolation ring (903) mutually, the top of the first battery core (7) is in contact with the surface of the connecting aluminum sheet (907), the bottom of the second cell (10) is in contact with the top of a steel cap (904).
3. The power supply system of the bipolar welding-free cell of claim 1, wherein: go up the equal fixedly connected with cushion (12) in both sides of casing (3) and lower casing (4), cushion (12) contact each other, one side that upper casing (3) and lower casing (4) were kept away from in cushion (12) respectively with the surface contact of upper end cover (2) and lower end cover (5).
4. The power supply system of a bipolar welding-free cell of claim 2, wherein: the inner side of the sealing ring (902) is provided with an annular bulge (13), and the bottom of the annular bulge (13) is in contact with the surface of the steel cap (904).
5. The power supply system of the bipolar welding-free cell of claim 1, wherein: the battery is characterized in that a partition strip (14) located on the inner side of a first battery cell (7) is arranged inside the lower shell (4), a limiting ring (15) sleeved on the surface of a second battery cell (10) is arranged at the top of the connecting plate (8), and the battery cell connecting mechanism (9) is located inside the limiting ring (15).
6. The power supply system of the bipolar welding-free cell of claim 1, wherein: the top of upper end cover (2) has been seted up and has been accomodate groove (16), the inside joint of accomodating groove (16) has heating plate (17).
7. The power supply system of the bipolar welding-free cell of claim 1, wherein: the left side and the right side of the bottom of the lower end cover (5) are both provided with a connecting wire (18), and the top end of the connecting wire (18) penetrates through the top of the lower end cover (5) and is fixedly connected with the negative plate (6).
8. The power supply system of a bipolar welding-free cell of claim 2, wherein: the top of the steel cap (904) is fixedly connected with clamping plates (19) which are arranged on the surface of the second battery cell (10), the clamping plates (19) are arranged in a plurality of uniformly surrounding mode, and the clamping plates (19) have elasticity.
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| CN202110525926.2A CN113258186B (en) | 2021-05-14 | 2021-05-14 | Power supply system of bipolar welding-free battery cell |
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| CN202110525926.2A CN113258186B (en) | 2021-05-14 | 2021-05-14 | Power supply system of bipolar welding-free battery cell |
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| CN113258186B CN113258186B (en) | 2022-11-29 |
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| US20200365864A1 (en) * | 2017-11-15 | 2020-11-19 | Pymco Technologies | Power unit made up of a solder-free assembly of a plurality of battery cells |
| CN209592106U (en) * | 2018-12-28 | 2019-11-05 | 东风力神动力电池系统有限公司 | Cylindrical cell battery modules with self-protection function |
| WO2020143375A1 (en) * | 2019-01-10 | 2020-07-16 | 郑州比克新能源汽车有限公司 | Welding-free battery module |
| CN209993665U (en) * | 2019-01-16 | 2020-01-24 | 苏州安靠电源有限公司 | Battery series connection assembly and battery module |
| CN211376782U (en) * | 2019-12-17 | 2020-08-28 | 纳恩博（常州）科技有限公司 | Battery connector, battery upper cover assembly and battery |
| CN211789219U (en) * | 2020-05-27 | 2020-10-27 | 青岛众玄科技有限公司 | Intelligent multi-string lithium battery module group |
| CN212412163U (en) * | 2020-07-15 | 2021-01-26 | 郑州比克新能源汽车有限公司 | Battery welding-free connection elastic sheet structure and single battery connection structure |
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