CN109244290B - Fixing device for energy body group - Google Patents
Fixing device for energy body group Download PDFInfo
- Publication number
- CN109244290B CN109244290B CN201810989119.4A CN201810989119A CN109244290B CN 109244290 B CN109244290 B CN 109244290B CN 201810989119 A CN201810989119 A CN 201810989119A CN 109244290 B CN109244290 B CN 109244290B
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- Prior art keywords
- energy
- battery
- strings
- bracket
- battery cells
- 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.)
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 49
- 229910052759 nickel Inorganic materials 0.000 claims description 24
- 238000012423 maintenance Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 208000033830 Hot Flashes Diseases 0.000 description 1
- 206010060800 Hot flush Diseases 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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 embodiment of the application provides a fixing device of battery core group, battery core group includes many strings of battery core, its characterized in that, fixing device includes: the battery pack comprises a support, a cover plate and a plurality of first conductive units, wherein the support is used for placing a plurality of strings of battery cells, one string of battery cells is provided with one first conductive unit, each first conductive unit is used for electrically connecting the corresponding string of battery cells, and the support is arranged on the outer side of the plurality of first conductive units and is used for forming a package on the battery cell group together with the cover plate. The battery cell group damage replacement device overcomes the defects that in the prior art, the battery cell group is inconvenient to replace, a large amount of time and materials are wasted, the maintenance cost is high and the like, and achieves the purpose of disassembling and maintaining more conveniently when the battery is damaged, and the maintenance cost is reduced.
Description
Technical Field
The embodiment of the application relates to the field of battery energy, in particular to a fixing device of an energy body group.
Background
With the development of new energy equipment such as electric vehicles, logistics robots and electric ships, the use of lithium batteries is more and more widespread, the advancement of lithium ion battery technology and the application in emerging key markets are excited to develop hot flashes in the global scope, and therefore, the lithium batteries must occupy important positions in the fields of electric vehicles and new energy.
The lithium battery is used as a power energy source on the electric vehicle, and becomes a new trend of new energy development. The lithium battery has the advantages of light weight, large energy storage, large power, no pollution, good thermal stability and safety, relatively low price and the like. These factors make lithium batteries the first choice for small electric vehicles and PHEV power batteries.
In order to provide the electric vehicle with larger power, the capacity, the number, the output power and the battery load of the battery core are larger and larger, and the number of batteries which need to be maintained in the future, the maintenance difficulty and the maintenance safety risk of the high-power battery pack are larger and larger. According to the conventional battery support scheme, when a series of battery cell groups are disassembled and replaced, the support can be opened only by disassembling nickel sheets of all battery cell groups, and the damaged battery cells are replaced and reassembled again, so that a great amount of time and materials are wasted, the maintenance cost is increased, and the battery cells of other good products are damaged in the disassembling process, so that the battery support has great potential safety hazards. Therefore, how to repair the battery more conveniently when the battery is damaged, and reduce the repair cost becomes a problem to be solved in the prior art.
Disclosure of Invention
In view of this, the embodiment of the application provides a fixing device of energy body group for overcome among the prior art electric core group damage and change inconvenient, extravagant a large amount of time, material, cost of maintenance defect such as expensive, reach can independently change single cluster electric core group when the battery damages, more convenient dismantles the maintenance, reduce cost of maintenance's purpose, work load and the process step when reducing production process and follow-up change damage electric core, and can realize that battery group electric core maintenance is changed many times.
To achieve the above object, an embodiment of the present application provides a fixing device for an energy bank including a plurality of strings of energy banks, the fixing device including: the support is used for placing the multiple strings of energy bodies, one string of energy bodies is provided with one first conductive unit, each first conductive unit is used for being electrically connected with the corresponding string of energy bodies, and the support is arranged on the outer sides of the multiple first conductive units and is jointly formed with the cover plate to wrap the energy body group.
Optionally, in any embodiment of the application, the first conductive unit is a first nickel sheet.
Optionally, in any embodiment of the application, the first nickel sheet is elongated.
Optionally, in any embodiment of the present application, further includes: and the second conductive unit is used for electrically connecting two adjacent strings of energy bodies.
Optionally, in any embodiment of the application, the second conductive unit is a second nickel sheet.
Optionally, in any embodiment of the present application, the second nickel sheet is "convex".
Optionally, in any embodiment of the present application, a fixing unit is disposed on the bracket, for disposing the second conductive unit.
Alternatively, in any embodiment of the present application, the polar arrangement directions of the energy bodies of the same string are the same, and the polar arrangement directions of the energy bodies of two adjacent strings are opposite.
Optionally, in any embodiment of the present application, further includes: and the first limiting structure is arranged on the bracket and used for limiting the positions of the multiple strings of energy bodies assembled on the bracket in the first direction.
Optionally, in any embodiment of the present application, the first limiting structure is a groove, and one end of the energy body extends into the groove to limit a position of the multiple strings of energy bodies assembled on the bracket in a first direction.
Optionally, in any embodiment of the present application, further includes: the second limiting structure is arranged on the cover plate and used for limiting the position of the multi-string energy body assembled on the support in the second direction.
Optionally, in any embodiment of the present application, the second limiting structure is a bump, and the bump extends into a gap between two adjacent strings of energy bodies to limit a position of the multiple strings of energy bodies assembled on the bracket in a second direction.
Optionally, in any embodiment of the present application, the series of energy volumes comprises at least 2 energy volumes.
In summary, the fixing device of the energy body group provided in the embodiment of the present application, the energy body group includes multiple strings of energy bodies, and the fixing device includes: the support is used for placing the multiple strings of energy bodies, one string of energy bodies is provided with one first conductive unit, each first conductive unit is used for being electrically connected with the corresponding string of energy bodies, and the support is arranged on the outer sides of the multiple first conductive units and is jointly formed with the cover plate to wrap the energy body group. Therefore, the purpose that a single-string battery cell group can be independently replaced, the energy body group is conveniently detached and maintained, and the maintenance cost is reduced is achieved, the problems that a large amount of time and materials are wasted, the maintenance cost is high, the battery cells of other good products are damaged in the dismantling process are solved, the workload and the procedure steps in the production process and the subsequent replacement of damaged battery cells are reduced, and the battery cells of the battery pack can be maintained and replaced for many times.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view of a fixing device of a battery cell pack in an embodiment of the present application;
fig. 2 is a partial enlarged view of the fixing device of the battery cell pack in the embodiment of the present application, in which the second conductive unit is shown;
FIG. 3 is a schematic partially disassembled view of a fixing device of a battery cell pack in an embodiment of the present application, wherein a first limiting structure is shown;
fig. 4 is another enlarged partial view of the fixing device of the battery cell pack in the embodiment of the present application, in which the second limiting structure is shown.
Fig. 5 is a schematic diagram illustrating a first conductive unit being pried open when the fixing device of the battery cell stack is detached in the embodiment of the present application.
Fig. 6 is a schematic view illustrating the removal of the battery cells when the fixing device of the battery cell pack is detached in the embodiment of the present application.
Detailed Description
It is not necessary for any of the embodiments of the present application to be practiced with all of the advantages described above.
The following description of the embodiments of the present invention 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 invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
In order to better understand the technical solutions in the embodiments of the present application, the following descriptions will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the embodiments of the present application shall fall within the scope of protection of the embodiments of the present application.
Embodiments of the present application are further described below with reference to the accompanying drawings of embodiments of the present application.
In the following embodiments of the present application, the energy body is taken as an example of the battery core, however, it should be noted that the energy body may be any other unit or module that can provide electric energy.
As shown in fig. 1, one embodiment of the present application provides a fixing device of a battery cell pack, the battery cell pack 1 including a plurality of strings of battery cells 2, the fixing device including: a support 3, a cover plate 4 (including a first cover plate 401 and a second cover plate 402), and a plurality of first conductive units 5, wherein the support 3 is used for placing the strings of battery cells 2. The string of battery cells 2 is configured with one of the first conductive units 5, and each of the first conductive units 5 is configured to electrically connect the corresponding string of battery cells 2 (specifically, for example, the first conductive units are spot-welded to the electrodes of the battery cells), where the parallel connection between the battery cells in the string of battery cells 2 can be achieved by the electrical connection of the first conductive units. The bracket 3 is disposed outside the plurality of the first conductive units 5 and forms a package for the battery cell group 1 together with the first cover plate 401 and the second cover plate 402.
In this embodiment, the first cover 401 and the second cover 402 are mounted on the bracket 3, and the first conductive unit 5 and the battery core group 1 are integrally wrapped by the bracket 3 and the cover 4, so that the whole structure is firmly fixed. In the use process, the first conductive unit 5 is not separated from the battery core group 1 due to vibration and pulling, so that the problems of poor power supply contact, insufficient power and the like are solved.
In this embodiment, the first conductive unit 5 is a first nickel sheet, so as to form a good electrical welding relationship with the battery core. The first conductive element may also be made of other conductive materials, such as copper. In particular, if the battery cells in a string of battery cells are arranged in the direction of the column, the first nickel plate is preferably elongated, so that parallel electrical connection between the battery cells in the string of battery cells can be made in the direction of the column.
In this embodiment, a series of battery cells including two battery cells having the positive electrode on the same side and the negative electrode on the other side is described as an example. The electrodes between two adjacent strings of battery cells are arranged oppositely to form a power supply device with a parallel-serial structure. However, it will be apparent to those skilled in the art that the string of battery cells 2 may also include four battery cells, and in this case, correspondingly, the first nickel plate may be shaped like a quadrilateral or the like, so that parallel electrical connection may be formed between the four battery cells in the string of battery cells.
Further, the method further comprises the following steps: the second conductive unit 6 is configured to electrically connect the first conductive unit to electrically connect the two strings of battery cells, and the second conductive unit connects each two adjacent strings of battery cells to connect all the adjacent battery cells in series, so as to form an integral power supply device with a parallel-serial structure, as shown in fig. 2.
The second conductive unit 6 is specifically a second nickel sheet. The second conductive element may also be made of other conductive materials, such as copper. Further, the second nickel plate is in a convex shape, so that each first nickel plate of two adjacent strings of battery cells can be spot-welded to the same second nickel plate, and the spot-welded position is located at the wider part of the second nickel plate.
Further, in order to spot-weld each first nickel sheet of two adjacent strings of battery cells to the same second nickel sheet, a bending portion (not shown in the figure) is provided on the first nickel sheet, and during spot welding, the bending portion is directly subjected to bending treatment so that the first nickel sheet is in contact with the second nickel sheet, and then spot welding treatment is performed on the contact position of the first nickel sheet and the second nickel sheet.
However, it should be understood by those skilled in the art that any other method than spot welding may be used, and special equipment or characteristic material may be used to fuse or connect the two separate nickel pieces together to form an integrated current guide body.
Referring to fig. 2 again, the fixing unit 7 is disposed on the bracket 3, and is used for setting the second conductive unit 6, so that the second conductive unit 6 is fixed on the bracket 3 through the fixing unit 7 and is electrically connected with the first conductive unit 5, thereby ensuring that the fixing device of the whole battery pack is firmer and the power supply is more stable. Specifically, the fixing unit 7 forms a structure resembling a card slot. In the specific application scenario, the fixing unit may be directly integrated with the bracket 3.
Referring again to fig. 3, further comprising: and the first limiting structure 8 is arranged on the bracket 3 and is used for limiting the position of the plurality of strings of battery cells 2 assembled on the bracket 3 in the first direction. The first direction is, for example, the direction opposite to the direction in which the battery cells are mounted in the holder.
Optionally, in an embodiment of the present application, the first limiting structure 8 is a groove, and one end of the battery core 2 extends into the groove to limit a position where the plurality of strings of battery cores 8 are assembled on the support 3 in a first direction. The groove can be integrally of a cylindrical structure with a closed side wall, and can be of a cylindrical structure with a hollowed-out side wall.
Referring again to fig. 4, further comprises: the second limiting structure 9 is arranged on the cover plate 4, and is used for limiting the first cover plate 401 and the second cover plate 402 in the second direction on the position where the multiple strings of battery cells 2 are assembled on the bracket 3, so that the positions of the battery cells 2 are more fixed. The second direction is, for example, the same direction in which the battery cells are mounted in the holder. For the purpose of lighter weight and simple structure, the second limiting structure 9 is not required to be arranged, and only the first cover plate 401 is required to be arranged.
In a specific application scenario, the second limiting structure 9 is a protruding block, and the protruding block extends into a gap between two adjacent strings of battery cells 2 to limit the position of the strings of battery cells 2 assembled on the bracket 3 in the second direction. Through the limit of the first direction and the second direction, the fixing device can provide more reliable fixing effect for the battery core group, and the electrical connection reliability of the battery core group in the use process is ensured.
With reference to fig. 5, when one of the battery cells is damaged, such as in a string of battery cells, the process of removing the battery cell from the fixture illustrated in the above embodiment or maintaining the battery cell is as follows: the cover plate 4 is firstly disassembled, then welding spots of the first conductive unit 5 and the second conductive unit 6 are pried, and the first conductive units on two sides of the bracket 3 are taken down. Then referring to fig. 6 again, the damaged battery cell string is drawn out, the damaged battery cell is replaced, other battery cells which do not need to be replaced do nothing, and the electrode of the battery cell is spot-welded with the first conductive unit 5, then spot-welded with the second conductive unit, and then the cover plate 4 is assembled on the nail, thereby completing the maintenance process. Therefore, the battery cell to be maintained is directly replaced, and no operation is performed on other battery cells which can normally work, so that the production cost and the maintenance cost are reduced, and the battery cell of the battery pack can be easily maintained and replaced for a plurality of times.
Alternatively, in the above embodiment of the present application, the polarity arrangement directions of the battery cells of the same string are the same, and the polarity arrangement directions of the battery cells of two adjacent strings are opposite. However, the polarities of the battery cells in the same string may be substantially different, and the polarity arrangement directions of the battery cells in adjacent strings may be the same.
It should be noted that the above embodiments are described only by taking the battery cell group formed in the parallel-serial structure as an example, but it is also possible for one skilled in the art to form the battery cell group in the serial structure, the parallel structure, or the serial-parallel structure.
In addition, in the above embodiments, the material of the bracket and the cover plate includes, but is not limited to, metal, plastic, and the like.
The terms "first," "second," "the first," or "the second," as used in various embodiments of the present application, may modify various elements without regard to order and/or importance, but these terms do not limit the corresponding elements. The above description is only for the purpose of distinguishing an element from other elements. For example, the first user device and the second user device represent different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, configuration, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase "in one embodiment of the present application" in various places in the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, configurations, or characteristics may be combined in any suitable manner in one or more embodiments.
While the preferred invention has been described, additional variations and modifications will occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including all such alterations and modifications as fall within the true scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A fixture for an energy bank comprising a plurality of strings of energy banks, the fixture comprising: the device comprises a bracket, a cover plate and a plurality of first conductive units, wherein the bracket is used for placing the plurality of strings of energy bodies, one string of energy bodies is provided with one first conductive unit, each first conductive unit is used for electrically connecting the corresponding string of energy bodies, and the bracket is arranged on the outer side of the plurality of first conductive units and forms a package for the energy body group together with the cover plate;
the fixing device further includes: the second conductive unit is used for electrically connecting two adjacent strings of energy bodies, the second conductive unit is a second nickel sheet, and the second nickel sheet is in a convex shape;
the bracket is provided with a fixing unit for arranging the second conductive unit;
the fixing device further includes: the first limiting structure is arranged on the bracket and used for limiting the position of the plurality of strings of energy bodies assembled on the bracket in a first direction;
the fixing device further includes: the second limiting structure is arranged on the cover plate and used for limiting the position of the multi-string energy body assembled on the support in the second direction.
2. The fixture of claim 1, wherein the first conductive element is a first nickel sheet.
3. The fixture of claim 2, wherein the first nickel sheet is elongated.
4. The fixture of claim 1 wherein the energy bodies of a single string are arranged in the same direction and adjacent strings are arranged in opposite directions.
5. The fixture of claim 1, wherein the first limiting structure is a groove, and wherein one end of the energy body extends into the groove to limit the position of the plurality of strings of energy bodies assembled to the bracket in a first direction.
6. The fixture of claim 1, wherein the second limiting structure is a projection that extends into a gap between two adjacent strings of energy bodies to limit the position of the strings of energy bodies assembled to the bracket in a second direction.
7. The fixture of any one of claims 1-6, wherein the series of energy bodies comprises at least 2 energy bodies.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989119.4A CN109244290B (en) | 2018-08-28 | 2018-08-28 | Fixing device for energy body group |
| PCT/CN2019/074880 WO2020042544A1 (en) | 2018-08-28 | 2019-02-12 | Fixing device for an energy body group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810989119.4A CN109244290B (en) | 2018-08-28 | 2018-08-28 | Fixing device for energy body group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109244290A CN109244290A (en) | 2019-01-18 |
| CN109244290B true CN109244290B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810989119.4A Active CN109244290B (en) | 2018-08-28 | 2018-08-28 | Fixing device for energy body group |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109244290B (en) |
| WO (1) | WO2020042544A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244290B (en) * | 2018-08-28 | 2024-04-16 | 纳恩博（北京）科技有限公司 | Fixing device for energy body group |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020042544A1 (en) | 2020-03-05 |
| CN109244290A (en) | 2019-01-18 |
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