CN113394507A - Cylindrical battery pack and pack method - Google Patents
Cylindrical battery pack and pack method Download PDFInfo
- Publication number
- CN113394507A CN113394507A CN202110826808.5A CN202110826808A CN113394507A CN 113394507 A CN113394507 A CN 113394507A CN 202110826808 A CN202110826808 A CN 202110826808A CN 113394507 A CN113394507 A CN 113394507A
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- Prior art keywords
- cylindrical battery
- cylindrical
- support
- pack
- central hole
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a cylindrical battery pack and a pack method, wherein the cylindrical battery pack comprises a cylindrical battery and supports arranged at two ends of the cylindrical battery, one side of each support facing the cylindrical battery is provided with a plurality of positioning grooves matched with the cylindrical battery, and the bottom surfaces of the positioning grooves are provided with central holes penetrating through the back surface of the support; the connecting piece is inserted into the central hole and connected with the electrode of the cylindrical battery, the connecting piece comprises a bending section and two connecting sections, the connecting section surrounds the convex cap of the cylindrical battery, and the bending section is connected with the two connecting sections; the fixing piece is used for fixing the cylindrical battery between the two brackets. The invention has simple and stable structure, small occupied space of the bracket and high energy density of the battery, can expose the convex cap of the cylindrical battery, is convenient for operations such as liquid injection and the like in the assembled state, is convenient to operate, and can stably assemble the cylindrical battery pack.
Description
Technical Field
The invention relates to the technical field of cylindrical battery production, in particular to a cylindrical battery pack and a pack method.
Background
The cylindrical battery has small capacity, dozens of battery modules with large capacity need to be connected in parallel, and a plurality of battery modules are connected in series to form a battery pack so as to meet the requirements of high voltage and high electric quantity of the electric automobile.
The existing single cylindrical battery module is not provided with a connecting structure which can be well connected with other cylindrical battery modules in series for use, and is combined and used through a battery box, so that the assembly and disassembly are inconvenient, and the overall structure is heavy in weight, which is not beneficial to the light use of a vehicle; meanwhile, in order to arrange the cylindrical battery in the battery box, the conventional cylindrical battery is generally connected and fixed with two brackets of the cylindrical battery pack through glue or bolts, and the battery pack clamping process needs certain manual operation, so that the later-stage automatic production is inconvenient, the assembly process is complex, and the assembly efficiency is low; the middle part of the battery has no related constraint structure, the connection structure is extremely unstable, and the anti-vibration performance is not strong; and the battery is totally wrapped by support and connection piece, if the battery has the problem, then can only change, inconvenient dismantlement maintenance.
Therefore, it is necessary to improve the conventional cylindrical battery module so that it has a simple structure, is stably fixed, and is easy to realize the series assembly of the batteries.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of complex structure and heavy weight of the cylindrical battery in the prior art, and provide a cylindrical battery pack and a pack method, which have simple and stable structure, are convenient to assemble, and can realize liquid injection operation without disassembly.
In order to solve the above technical problems, the present invention provides a cylindrical battery pack, comprising a cylindrical battery, and
the support is arranged at two ends of the cylindrical battery, one side of the support facing the cylindrical battery is provided with a plurality of positioning grooves matched with the support, and the bottom surface of each positioning groove is provided with a central hole penetrating through the back surface of the support;
the connecting piece comprises a bending section and two connecting sections, the connecting sections are inserted into the central hole and connected with the electrodes of the cylindrical battery, the connecting sections surround the convex caps of the cylindrical battery, and the bending section is connected with the two connecting sections;
the fixing piece is connected with the two supports along the axial direction of the cylindrical battery and fixes the cylindrical battery between the supports.
In one embodiment of the invention, the diameter of the central hole is smaller than that of the cylindrical battery, the connecting section is annular, the diameter of the outer ring of the connecting section is smaller than that of the central hole, and the diameter of the inner ring of the connecting section is larger than that of the convex cap of the cylindrical battery.
In one embodiment of the invention, two adjacent rows of the positioning grooves are arranged in a diamond-shaped staggered manner.
In one embodiment of the invention, a connecting groove is arranged between the two central holes connected by the connecting piece, the connecting piece is clamped in the connecting groove, and the height of the connecting groove is smaller than the thickness of the central holes.
In one embodiment of the invention, the connecting sheet is a metal plate which is integrally processed and formed, the connecting section is circular or sector-ring-shaped, and the inner ring of the sector-ring-shaped connecting section is provided with a step which protrudes towards the height direction of the bending section.
In one embodiment of the invention, the fixing piece is an insulating tape which surrounds and binds the two brackets along the axial direction of the cylindrical battery.
In one embodiment of the invention, at least one pair of fixing grooves is arranged on two opposite sides of the bracket, and the insulating tape is clamped in the fixing grooves.
In one embodiment of the present invention, at least one of the pair of fixing grooves is disposed at a position corresponding to between two of the positioning grooves.
The invention also provides a pack method of the cylindrical battery, aiming at the cylindrical battery pack, comprising the following steps:
a cylindrical battery is fully inserted into one support, and the other support is sleeved at the other end of the cylindrical battery;
inserting the connecting sheet into the central hole of the bracket, sleeving the connecting section outside the convex cap of the cylindrical battery and contacting with the electrode of the cylindrical battery, and fixing the connecting sheet with the cylindrical battery;
and connecting the two brackets by using the fixing piece, and locking the fixing piece.
In one embodiment of the invention, when the cylindrical batteries are inserted into the brackets, the electrodes of the cylindrical batteries corresponding to the two central holes connected by the connecting sheets are opposite, and the connecting sheets arranged on the two brackets are connected with different cylindrical batteries, so that all the cylindrical batteries are connected in series.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the cylindrical battery pack has a simple and stable structure, a bracket occupies a small space, the energy density of the battery is high, and the convex cap of the cylindrical battery can be exposed outside, so that operations such as liquid injection and the like can be conveniently carried out in an assembled state;
the pack method is convenient to operate and can be used for stably mounting the cylindrical battery pack.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a cylindrical battery of the present invention;
FIG. 3 is a schematic view of the stent structure of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a medial side elevational view of the stent of the present invention;
FIG. 6 is a schematic view of a structure of an embodiment of a connecting piece of the present invention;
FIG. 7 is a schematic structural view of a second embodiment of a connecting sheet according to the present invention;
figure 8 is a side view of a connecting piece of the present invention.
The specification reference numbers indicate: 10. a cylindrical battery; 11. a convex cap; 20. a support; 21. positioning a groove; 22. a central bore; 23. connecting grooves; 30, of a nitrogen-containing gas; connecting sheets; 31. bending the section; 32. a connecting section; 33. a step; 40; a fixing member; 41. an insulating tape; 42. and fixing the grooves.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1 and 2, there is shown an overall schematic view of a cylindrical battery pack according to the present invention. The cylindrical battery pack of the present invention includes cylindrical batteries 10, and:
the support 20 is arranged at two ends of the cylindrical battery 10, one side of the support 20 facing the cylindrical battery 10 is provided with a plurality of positioning grooves 21 matched with the support, and the bottom surfaces of the positioning grooves 21 are provided with central holes 22 penetrating through the back surface of the support 20;
a connecting piece comprising a bending section 30; connecting sheets; 31 and two connecting sections 32, wherein the connecting sections 32 are inserted into the central hole 22 to connect the electrodes of the cylindrical battery 10, the connecting sections 32 surround the convex cap 11 of the cylindrical battery 10, and the bent sections 30; connecting sheets; 31 connecting two of said connecting segments 32;
and the fixing piece is connected with the two brackets 20 along the axial direction of the cylindrical battery 10, and fixes the cylindrical battery 10 between the brackets 20.
In this embodiment, in cylindrical battery 10 both ends inserted support 20, constant head tank 21 carried on spacingly to cylindrical battery 10's position, and the electrode at cylindrical battery 10 both ends is exposed outside in the setting of centre bore 22, makes things convenient for the connection piece to connect cylindrical battery 10's electrode from support 20 is outer. The connecting section 32 of the connecting sheet is contacted with the motor of the cylindrical battery 10, and the bending section 30; connecting sheets; the two connection segments 32 are connected by the connection 31 so that the cylindrical batteries 10 are connected in series one by one. The connection piece is around outside the protruding cap 11 of cylindrical battery 10, vacates the position of the protruding cap 11 of cylindrical battery 10 to when the operation such as annotate liquid need be carried out cylindrical battery 10, can directly open protruding cap 11, and need not to dismantle the group battery and can realize. In order to prevent the two brackets 20 from moving in the axial direction of the cylindrical battery 10, which causes structural instability of the battery pack, the two brackets 20 are locked by using a fixing member in this embodiment. Specifically, the fixing member is selected as an insulating tape 40; a fixing member; 41, the insulating tape 40; a fixing member; 41 surround and bind the two brackets 20 in the axial direction of the cylindrical battery 10. An insulating tape 40; a fixing member; 41, the cost is low, the installation is convenient, and meanwhile, the insulating tape 40 is adopted; a fixing member; 41 the volume is small, and the occupation space is small, so that a plurality of battery packs can be more compact when combined, and the energy density of the battery pack is improved. In order to secure the structure of the battery pack, the insulating tape 40 in the present embodiment; a fixing member; 41 is a non-elastic structure.
Further, referring to fig. 2 and 3, a structural diagram of the bracket 20 of the present invention is shown. In this embodiment, in order to limit the cylindrical battery 10, the diameter of the central hole 22 is smaller than the diameter of the cylindrical battery 10, so as to prevent the cylindrical battery 10 from slipping out from the central hole 22 after the brackets 20 at the two ends are pressed relatively. Since the connection segment 32 surrounds the convex cap 11 of the cylindrical battery 10, the connection segment 32 has a ring shape. Specifically, referring to fig. 5, in the present embodiment, the connecting section 32 is configured in a circular ring shape. The diameter of the outer ring of the connecting section 32 is smaller than that of the central hole 22, so that the connecting section 32 can be inserted into the central hole 22 and connected with the electrode of the cylindrical battery 10, meanwhile, the diameter of the inner ring of the connecting section 32 is larger than that of the convex cap 11 of the cylindrical battery 10, the connecting section 32 is guaranteed not to cover the convex cap 11 of the cylindrical battery 10, and operations such as liquid injection on the cylindrical battery 10 are facilitated. Further, referring to fig. 4, two adjacent rows of the positioning slots 21 are arranged in a diamond-shaped staggered manner. Since the positioning grooves 21 are arranged in a diamond-shaped staggered manner, i.e., the positioning grooves 21 are respectively inserted between the gaps of two adjacent positioning grooves 21, the positioning grooves 21 are arranged more closely, thereby improving the energy density of the cylindrical battery 10. The clearance between the adjacent cylindrical batteries 10 is reduced, the probability that the cylindrical batteries 10 shake is reduced, and the stability of the structure of the cylindrical batteries 10 is ensured. Also, since the cylindrical batteries 10 are arranged in a non-parallel manner, and the periphery of the bracket 20 is matched with the shape of the positioning grooves 21, the number of the positioning grooves 21 in each row can be set as required, so that the brackets 20 with different specifications are formed and matched with the installation space of the cylindrical battery pack, and the space utilization rate is improved.
Referring to fig. 5, in order to further ensure the fixing of the connecting piece, a connecting groove 23 is arranged between the two central holes 22 connected by the connecting piece, and the connecting piece is clamped in the connecting groove 23, specifically, a bending section 30; connecting sheets; 31 are caught in the connecting grooves 23, thereby forming a limit for the connecting piece. The connecting section 32 is fixed with the cylindrical battery 10, and the bending section 30; connecting sheets; 31 are clamped in the connecting grooves 23, the connecting sheet cannot move integrally, and even if the cylindrical battery 10 slightly shakes in the bracket 20, the connecting section 32 and the bending section 30 can be connected; connecting sheets; the bending part between the connecting pieces 31 absorbs shock and buffers, and the connection stability of the connecting pieces and the cylindrical battery 10 is guaranteed. In this embodiment, the height of the connecting groove 23 is smaller than the thickness of the central hole 22. The electrodes of the cylindrical battery 10 exposed to the outside are prevented from being too close to affect the performance of the cylindrical battery 10. Because the connecting pieces are arranged at different positions in the brackets 20 at the two ends of the battery pack, in order to realize the uniformity of the brackets 20, the brackets 20 at the two ends do not need to be distinguished, and the connecting grooves 23 can also be connected with any adjacent central holes 22 along the connecting direction of the connecting pieces.
Referring to fig. 6, the connecting piece is formed by integrally processing a metal plate, and the connecting section 32 is circular or sector-ring-shaped to make the center of the connecting section 32 be clear, so that the convex cap 11 of the cylindrical battery 10 can extend out of the connecting section and cannot be shielded. During processing, a stamping die is utilized to directly stamp the metal plate into the shape of the connecting sheet, the inner circle part is stamped out, and meanwhile, the bending section 30 is stamped; connecting sheets; 31 a bend is stamped out. The thickness of the connecting sheet is 0.3-1.5 mm. The thickness satisfies that the connecting sheet can provide the connection strength required by the connection of the battery pack. Referring to fig. 7, the connection segment 32 is a sector ring, and in this embodiment, since the electrode contact area between the sector ring and the battery is small, the overcurrent during the operation of the battery pack is affected, and for this reason, the inner ring of the sector ring is provided with the bending segment 30; connecting sheets; 31, and a step 33 projecting in the height direction. The setting of step 33 has increased the area of fan ring shape to guarantee under the condition that connection piece and battery area of contact diminish, the excessive flow of group battery does not produce the change, guarantees the operating condition of group battery.
Referring to fig. 7, an included angle α is formed between the two connecting segments 32, and the included angle α is greater than 90 degrees and less than or equal to 180 degrees. Specifically, the included angle α is greater than 150 ° and less than 180 °. Thereby reducing the bending moment of the segment 30; connecting sheets; 31 are pressed in the connecting grooves 23, the connecting section 32 applies pressure to the battery direction due to the elasticity of the connecting section 32, so that the connecting section 32 is in closer contact with the battery, and the connecting effect of the connecting sheet is ensured. Simultaneously connecting the connecting section 32 with the bending section 30; connecting sheets; 31, when the battery shakes, the connection section 32 and the bending section 30 are connected; connecting sheets; 31, the existence of the bending part and the included angle alpha can form buffering and shock absorption, on one hand, the influence on the connection between the connecting section 32 and the battery is avoided, and on the other hand, the connecting sheet is prevented from being broken.
Referring to fig. 2, the insulating tape 40; a fixing member; the brackets 20 are tightened 41 in the axial direction of the cylindrical battery 10 so that the battery pack is not loosened in the axial direction. And since the surface of the bracket 20 is smooth, i.e., the insulating tape 40; a fixing member; 41 and the holder 20, so that the insulating tape 40; a fixing member; 41 are easily moved in the longitudinal direction of the holder 20 to fix the insulating tape 40; a fixing member; 41, at least a pair of fixing grooves 42 are arranged on two opposite sides of the bracket 20, and the insulating tape 40; a fixing member; 41 are clamped in the fixing grooves 42. The insulating tape 40 is avoided; a fixing member; 41, preventing the insulating tape 40; a fixing member; 41, the insulating tape 40 is extended; a fixing member; 41 life time. Further, at least one of the pair of fixing grooves 42 is disposed at a position corresponding to a position between the two positioning grooves 21. The position between the two positioning grooves 21 is recessed into the holder 20 at this time, so that the insulating tape 40; a fixing member; 41, the card can be more stable, preventing the insulating tape 40; a fixing member; 41 slide out of the fixing groove 42.
The pack method of the cylindrical battery 10 adopts the cylindrical battery pack, and comprises the following steps:
a cylindrical battery 10 is fully inserted into one bracket 20, and the other bracket 20 is sleeved at the other end of the cylindrical battery 10;
because the two ends of the cylindrical battery 10 are respectively inserted into the two brackets 20, under the condition that the installation is completed, the distance between the two brackets 20 is smaller than the length of the cylindrical battery 10, in this embodiment, the cylindrical battery 10 is fully inserted into one bracket 20, and then the other bracket 20 is sleeved at the other end of the cylindrical battery 10, so that the cylindrical battery 10 is ensured to be limited between the two brackets 20.
Then, inserting a connecting sheet into the central hole 22 of the bracket 20, sleeving the connecting section 32 outside the convex cap 11 of the cylindrical battery 10 and contacting the electrode of the cylindrical battery 10, and fixing the connecting sheet with the cylindrical battery 10;
since the electrodes at both ends of the cylindrical battery 10 are exposed from the central hole 22 of the holder 20, the connection tabs can be inserted into the central hole 22 to be connected to the electrodes of the cylindrical battery 10 and to make the position of the convex cap 11 of the cylindrical battery 10 out, thereby connecting the plurality of cylindrical batteries 10.
In this embodiment, the cylindrical batteries 10 are connected in series, so that the connecting sections 32 at two ends of the connecting sheet are respectively connected with different electrodes of two adjacent cylindrical batteries 10, and when the cylindrical batteries 10 are inserted into the bracket 20, two adjacent cylindrical batteries 10 corresponding to the two connecting sections 32 of the connecting sheet are inserted into the bracket 20 in a manner that the electrodes are opposite. Meanwhile, the electrodes of the cylindrical batteries 10 exposed from the brackets 20 at the two ends of the cylindrical batteries 10 are opposite, when the connecting sheet arranged on one bracket 20 is connected with two adjacent cylindrical batteries 10, the connecting section 32 at one end of the connecting sheet arranged on the other bracket 20 is connected with one of the two cylindrical batteries 10, and the connecting section 32 at the other end is connected with the other adjacent cylindrical battery 10 outside the two cylindrical batteries 10, so that all the cylindrical batteries 10 are connected in series.
The two brackets 20 are connected by a fastener and the fastener is locked.
In the present embodiment, the insulating tape 40; a fixing member; 41 are passed around the two supports 20 and then over the insulating tape 40; a fixing member; 41, tensioning the insulating tape 40; a fixing member; 41 are fixed at both ends. The fixation of the cylindrical battery pack is realized.
By adopting the pack method, the cylindrical battery is convenient to assemble and stable in structure, and meanwhile, the convex cap 11 of the cylindrical battery 10 is exposed outside, so that operations such as liquid injection and the like can be conveniently carried out on the cylindrical battery 10 without disassembling the cylindrical battery pack.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A cylindrical battery pack, characterized in that, it comprises a cylindrical battery, and
the support is arranged at two ends of the cylindrical battery, one side of the support facing the cylindrical battery is provided with a plurality of positioning grooves matched with the support, and the bottom surface of each positioning groove is provided with a central hole penetrating through the back surface of the support;
the connecting piece comprises a bending section and two connecting sections, the connecting sections are inserted into the central hole and connected with the electrodes of the cylindrical battery, the connecting sections surround the convex caps of the cylindrical battery, and the bending section is connected with the two connecting sections;
the fixing piece is connected with the two supports along the axial direction of the cylindrical battery and fixes the cylindrical battery between the supports.
2. A cylindrical battery according to claim 1, wherein: the diameter of the central hole is smaller than that of the cylindrical battery, the connecting section is annular, the diameter of the outer ring of the connecting section is smaller than that of the central hole, and the diameter of the inner ring of the connecting section is larger than that of the convex cap of the cylindrical battery.
3. A cylindrical battery according to claim 1, wherein: and two adjacent rows of positioning grooves are arranged in a diamond-shaped staggered manner.
4. A cylindrical battery according to claim 1, wherein: and a connecting groove is arranged between the two central holes connected by the connecting piece, the connecting piece is clamped in the connecting groove, and the height of the connecting groove is smaller than the thickness of the central hole.
5. A cylindrical battery according to claim 1, wherein: the connecting piece is formed by integrally processing a metal plate, the connecting section is in a ring shape or a fan-shaped ring shape, and the inner ring of the connecting section in the fan-shaped ring shape is provided with a step protruding towards the height direction of the bending section.
6. A cylindrical battery according to claim 1, wherein: the fixing piece is an insulating tape, and the insulating tape surrounds and binds the two supports along the axial direction of the cylindrical battery.
7. The cylindrical battery as defined in claim 6, wherein: at least one pair of fixing grooves are formed in two opposite sides of the support, and the insulating tape is clamped in the fixing grooves.
8. A cylindrical battery according to claim 7, wherein: at least one of the pair of fixing grooves is disposed between the corresponding two positioning grooves.
9. A pack method for cylindrical batteries, characterized in that, for the cylindrical battery pack of any one of claims 1 to 8, the following steps are included:
a cylindrical battery is fully inserted into one support, and the other support is sleeved at the other end of the cylindrical battery;
inserting the connecting sheet into the central hole of the bracket, sleeving the connecting section outside the convex cap of the cylindrical battery and contacting with the electrode of the cylindrical battery, and fixing the connecting sheet with the cylindrical battery;
and connecting the two brackets by using the fixing piece, and locking the fixing piece.
10. The pack method of claim 9, wherein: when the cylindrical batteries are inserted into the supports, the electrodes of the cylindrical batteries corresponding to the two central holes connected by the connecting sheets are opposite, and the connecting sheets arranged on the two supports are connected with different cylindrical batteries, so that all the cylindrical batteries are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826808.5A CN113394507A (en) | 2021-07-21 | 2021-07-21 | Cylindrical battery pack and pack method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826808.5A CN113394507A (en) | 2021-07-21 | 2021-07-21 | Cylindrical battery pack and pack method |
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| Publication Number | Publication Date |
|---|---|
| CN113394507A true CN113394507A (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202110826808.5A Pending CN113394507A (en) | 2021-07-21 | 2021-07-21 | Cylindrical battery pack and pack method |
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| CN (1) | CN113394507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023000558A1 (en) * | 2021-07-21 | 2023-01-26 | 星恒电源股份有限公司 | Cylindrical battery module convenient for recycling and recycling method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145473U (en) * | 2011-06-27 | 2012-02-15 | 东风汽车公司 | Positioning plate of power battery pack module |
| CN103311490A (en) * | 2013-04-28 | 2013-09-18 | 潘珊 | Power-type lithium-ion battery pack and manufacturing method thereof |
| CN206639852U (en) * | 2017-02-24 | 2017-11-14 | 深圳市沃特玛电池有限公司 | A kind of electrokinetic cell bag |
| US20200395587A1 (en) * | 2017-10-10 | 2020-12-17 | Lg Chem, Ltd. | Cylindrical battery cell having connection cap |
| CN113078409A (en) * | 2021-04-20 | 2021-07-06 | 国轩新能源（苏州）有限公司 | Anti-disassembly sharing power battery module structure |
| CN215418449U (en) * | 2021-07-21 | 2022-01-04 | 星恒电源股份有限公司 | Cylindrical battery pack |
-
2021
- 2021-07-21 CN CN202110826808.5A patent/CN113394507A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202145473U (en) * | 2011-06-27 | 2012-02-15 | 东风汽车公司 | Positioning plate of power battery pack module |
| CN103311490A (en) * | 2013-04-28 | 2013-09-18 | 潘珊 | Power-type lithium-ion battery pack and manufacturing method thereof |
| CN206639852U (en) * | 2017-02-24 | 2017-11-14 | 深圳市沃特玛电池有限公司 | A kind of electrokinetic cell bag |
| US20200395587A1 (en) * | 2017-10-10 | 2020-12-17 | Lg Chem, Ltd. | Cylindrical battery cell having connection cap |
| CN113078409A (en) * | 2021-04-20 | 2021-07-06 | 国轩新能源（苏州）有限公司 | Anti-disassembly sharing power battery module structure |
| CN215418449U (en) * | 2021-07-21 | 2022-01-04 | 星恒电源股份有限公司 | Cylindrical battery pack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023000558A1 (en) * | 2021-07-21 | 2023-01-26 | 星恒电源股份有限公司 | Cylindrical battery module convenient for recycling and recycling method |
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