CN220106838U - Battery module with short-circuit protection function - Google Patents
Battery module with short-circuit protection function Download PDFInfo
- Publication number
- CN220106838U CN220106838U CN202320957654.8U CN202320957654U CN220106838U CN 220106838 U CN220106838 U CN 220106838U CN 202320957654 U CN202320957654 U CN 202320957654U CN 220106838 U CN220106838 U CN 220106838U
- Authority
- CN
- China
- Prior art keywords
- short
- circuit protection
- protection function
- copper bar
- battery module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 83
- 229910052802 copper Inorganic materials 0.000 claims abstract description 83
- 239000010949 copper Substances 0.000 claims abstract description 83
- 238000003466 welding Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Fuses (AREA)
Abstract
The utility model discloses a battery module with a short-circuit protection function, which relates to the technical field of battery modules and comprises the following components: the battery cell, the utmost point ear connection area short-circuit protection function copper bar of battery cell, take short-circuit protection function copper bar to fix on the copper bar support, take short-circuit protection function copper bar at battery module's positive negative pole output side, take short-circuit protection function copper bar to include the copper bar body, one side of copper bar body is provided with first heat fourth of twelve earthly branches fixed orifices, the fuse is connected to the opposite side of copper bar body, the mounting panel is connected to the fuse, the mounting panel is the L type. The utility model can meet the requirements of high-current charge and discharge and 600A fast charge and simultaneously has the short-circuit protection function, does not occupy the redundant space of the module and does not need to increase redundant devices; the utility model has the advantages of safety, reliability, simple structure, low cost, short development period, small volume and no space occupation.
Description
Technical Field
The utility model relates to the technical field of battery modules, in particular to a battery module with a short-circuit protection function.
Background
When the battery module is short-circuited, the current is close to 3500A-8000A, so that a large amount of heat energy can be generated by the battery core in the battery module in a short time, and if the design of short-circuit protection is not adopted, the battery core is extremely easy to cause thermal runaway, thereby causing safety risk; the prior art mainly considers short-circuit protection from the following four aspects: firstly, a fuse device is added in a battery module to achieve short-circuit protection, but the method occupies the space of the battery module, the design difficulty is high, and meanwhile, the cost is increased due to the addition of the device; secondly, characteristic design is carried out on the lugs of the soft-package battery core, but the temperature rise of the lugs of the battery core can be increased in the process of high-current charge and discharge, and the aging of the lugs can be accelerated, so that the problems of battery core leakage and the like occur, the service life time of a battery product is shortened, and even the safety problems of thermal runaway and the like of the battery core can be possibly caused; thirdly, a short-circuit protection circuit design is adopted, but the circuit protection design in the mode can only be disconnected outside the module, a certain risk still exists inside the battery module, and meanwhile, the use of the protection circuit can increase the cost; fourthly, the battery module adopts a protection board design, but occupies a limited space in the module and increases the cost.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a technical scheme that: the structure design of the similar fuse is carried out on the anode and cathode output copper bars of the battery module, the optimization design is carried out on the original copper bars of the battery module, the redundant space of the module is not occupied, redundant devices are not required to be added, and the short-circuit protection function can be achieved while the requirements of high-current charge and discharge and 600A fast charge are met.
Specifically, the utility model provides a battery module with a short-circuit protection function, which comprises: the battery cell, the utmost point ear connection area short-circuit protection function copper bar of battery cell, take short-circuit protection function copper bar to fix on the copper bar support, take short-circuit protection function copper bar at battery module's positive negative pole output side, take short-circuit protection function copper bar to include the copper bar body, one side of copper bar body is provided with first heat fourth of twelve earthly branches fixed orifices, the fuse is connected to the opposite side of copper bar body, the mounting panel is connected to the fuse, the mounting panel is the L type. And the structure design of the similar fuse is carried out on the copper bars of the positive and negative output poles of the battery module, thereby playing an effective role in short-circuit protection.
Preferably, the cross-sectional area of the fuse is 14mm 2 -20 mm 2 。
Preferably, the cross-sectional area of the fuse is 16mm 2 . The high-current charge and discharge and 600A fast charge requirements are met, and meanwhile the short-circuit protection function is achieved.
Preferably, the edges and corners of the mounting plate are all set to be arc-shaped excessively, one face of the mounting plate is provided with a second heat mortise fixing hole and a third heat mortise fixing hole, and the other face of the mounting plate is provided with a bolt hole.
Preferably, the mounting plate is provided with a notch, and the notch is located below the second heat mortise fixing hole. For mounting the connection plate.
Preferably, a connecting plate is welded below the position corresponding to the second hot mortise fixing hole of the mounting plate, and the connecting plate is connected with the fuse.
Preferably, the copper bar body is rectangular, and two corners of one side of the copper bar body, which is close to the first hot mortise fixing hole, are all set to be arc-shaped excessively.
Preferably, the aperture of the second hot-mortise fixed hole is smaller than the aperture of the third hot-mortise fixed hole.
Preferably, the mode of connecting the tab of the battery cell with the copper bar with the short-circuit protection function is laser welding.
Preferably, the copper bars with the short-circuit protection function are anode and cathode output copper bars.
The utility model has the following beneficial effects: according to the utility model, through designing the structure of the similar fuse on the positive and negative output electrode copper bars of the battery module, the short-circuit protection function can be considered while the requirements of high-current charge and discharge and 600A fast charge are met; specifically, a fuse is added on the original anode and cathode output copper bars of the battery module, and the structure is optimized, so that the redundant space of the module is not occupied, and meanwhile, redundant devices are not required to be added; the utility model has simple structure, low cost, short development period and small volume, and does not occupy space; the utility model is safe and reliable, passes short circuit tests of multiple module levels and has high safety level of passing the tests.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a battery module with a short-circuit protection function according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a copper bar with a short-circuit protection function for an anode in an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a copper bar with a short-circuit protection function for a negative electrode according to an embodiment of the present utility model.
Reference numerals:
1. copper bars with short-circuit protection function; 2. a tab; 3. a copper bar bracket; 4. overcurrent copper bars; 11. a copper bar body; 12. the first hot mortise fixing hole; 13. a connecting plate; 14. a mounting plate; 15. the second hot mortise fixing hole; 16. a third heat mortise fixing hole; 17. bolt holes; 18. and a fuse.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1-3, a preferred embodiment of the present utility model provides a battery module with a short-circuit protection function, which includes a battery cell, a copper bar 1 with a short-circuit protection function, a tab 2, a copper bar bracket 3, and an overcurrent copper bar 4.
Specifically, an embodiment of the present utility model provides a battery module with a short-circuit protection function, including: the battery cell, the utmost point ear 2 of battery cell is connected and is taken short-circuit protection function copper bar 1 and overflows copper bar 4, take short-circuit protection function copper bar 1 and overflows copper bar 4 to be fixed on copper bar support 3 through hot fourth of twelve earthly branches, take short-circuit protection function copper bar 1 includes copper bar body 11 and mounting panel 14, one side of copper bar body 11 is provided with first hot fourth of twelve earthly branches fixed orifices 12, fuse 18 is connected to the opposite side of copper bar body 11, the mounting panel 14 is connected to fuse 18, mounting panel 14 is L-shaped, one side of mounting panel 14 is provided with second hot fourth of twelve earthly branches fixed orifices 15 and third hot fourth of twelve earthly branches fixed orifices 16, the another side of mounting panel 14 is provided with bolt hole 17. The positive and negative output electrode copper bars of the battery module are subjected to fuse-like structural design to form the copper bar 1 with the safety function, so that effective short-circuit protection is achieved.
In the present embodiment, the cross-sectional area of the fuse 18 is 14mm 2 -20 mm 2 。
In this embodiment, the mounting plate 14 is provided with a notch, and the notch is located below the second heat mortise-locking hole 15. For mounting the connection plate 14.
In this embodiment, a connecting plate 13 is welded below the position corresponding to the second thermal mortise fixing hole 15 of the mounting plate 14, and the connecting plate 13 is connected with a fuse 18.
In this embodiment, the copper bar body is rectangular, and two corners of the copper bar body 11 near one side of the first hot mortise fixing hole 12 are all set to be arc transition.
In this embodiment, the aperture of the second hot-mortise fixed hole 15 is smaller than that of the third hot-mortise fixed hole 16.
In this embodiment, the manner of connecting the tab 2 of the battery cell with the copper bar 1 with the short-circuit protection function and the overcurrent copper bar 4 is laser welding.
In this embodiment, the copper bar 1 with the short-circuit protection function is an anode and cathode output copper bar.
Example 2
The embodiment of the utility model provides a battery module with a short circuit protection function, which comprises the following components: the battery cell, the utmost point ear 2 of battery cell passes through laser welding connection area short circuit protection function copper bar 1 and overflows copper bar 4, wherein take short circuit protection function copper bar 1 divide into anodal area short circuit protection function copper bar and negative pole area short circuit protection function copper bar, and overflow copper bar 4 passes through hot mortise fixation on copper bar support 3, anodal area short circuit protection function copper bar connects overflow copper bar 4 simultaneously, overflow copper bar 4 connects negative pole area short circuit protection function copper bar, take short circuit protection function copper bar 1 to include copper bar body 11, fuse 18 and mounting panel 14, one side of copper bar body 11 is provided with first hot mortise fixed orifices 12, two angles that copper bar body 11 is close to first hot mortise fixed orifices 12 one side all set up to be the circular arc excessively, the fuse 18 is connected to the opposite side of copper bar body 11, fuse 18 connects mounting panel 14, the fuse is blownThe cross-sectional area of the device 18 is 16mm 2 The mounting panel 14 is L type, and the edges and corners of mounting panel 14 all set to the circular arc excessively, and the one side of mounting panel 14 is provided with second heat fourth of the twelve earthly branches fixed orifices 15 and third heat fourth of the twelve earthly branches fixed orifices 16, and the aperture of second heat fourth of the twelve earthly branches fixed orifices 15 is less than the aperture of third heat fourth of the twelve earthly branches fixed orifices 16, and the another side of mounting panel 14 is provided with bolt hole 17.
The battery module in the embodiment is subjected to short circuit tests at multiple module levels, and the embodiment of the utility model passes the short circuit tests and has high safety level.
The working principle of the technical scheme is as follows: the utility model performs the optimal design on the original copper bar of the battery module, the fuse 18 is connected between the copper bar body 11 and the mounting plate 14, and when the battery module is short-circuited, the battery module is protected.
The above is only a preferred embodiment of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.
Claims (10)
1. A battery module with a short-circuit protection function, comprising: the battery cell, the utmost point ear connecting band short-circuit protection function copper bar of battery cell, take short-circuit protection function copper bar to fix on the copper bar support, take short-circuit protection function copper bar to be at battery module's positive negative pole output side, take short-circuit protection function copper bar includes the copper bar body, one side of copper bar body is provided with first hot mortise and tenon joint hole, the fuse is connected to the opposite side of copper bar body, the mounting panel is connected to the fuse, the mounting panel is the L type.
2. The battery module with a short-circuit protection function according to claim 1, whereinThe cross-sectional area of the fuse is 14mm 2 -20 mm 2 。
3. The battery module with a short-circuit protection function according to claim 2, wherein the cross-sectional area of the fuse is 16mm 2 。
4. The battery module with the short-circuit protection function according to claim 1 or 2, wherein the edges and corners of the mounting plate are all set to be arc transition, one face of the mounting plate is provided with a second heat mortise fixing hole and a third heat mortise fixing hole, and the other face of the mounting plate is provided with a bolt hole.
5. The battery module with the short-circuit protection function according to claim 4, wherein the mounting plate is provided with a notch, and the notch is located below the second heat mortise fixing hole.
6. The battery module with the short-circuit protection function according to claim 5, wherein a connecting plate is welded below a position corresponding to the second hot-mortise fixing hole of the mounting plate, and the connecting plate is connected with the fuse.
7. The battery module with the short-circuit protection function according to claim 1, wherein the copper bar body is rectangular, and two corners of one side of the copper bar body, which is close to the first hot mortise fixing hole, are all set to be arc-shaped excessively.
8. The battery module with a short-circuit protection function according to claim 5, wherein the aperture of the second heat mortise-locking hole is smaller than the aperture of the third heat mortise-locking hole.
9. The battery module with the short-circuit protection function according to claim 7, wherein the tab of the battery cell is connected with the copper bar with the short-circuit protection function by laser welding.
10. The battery module with the short-circuit protection function according to claim 9, wherein the copper bars with the short-circuit protection function are positive and negative output copper bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957654.8U CN220106838U (en) | 2023-04-24 | 2023-04-24 | Battery module with short-circuit protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957654.8U CN220106838U (en) | 2023-04-24 | 2023-04-24 | Battery module with short-circuit protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220106838U true CN220106838U (en) | 2023-11-28 |
Family
ID=88846037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320957654.8U Active CN220106838U (en) | 2023-04-24 | 2023-04-24 | Battery module with short-circuit protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220106838U (en) |
-
2023
- 2023-04-24 CN CN202320957654.8U patent/CN220106838U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213717030U (en) | Connection piece, battery and battery module that battery was used | |
| CN213340646U (en) | Busbar and battery module | |
| KR100322098B1 (en) | Secondary battery | |
| CN216161891U (en) | Battery bracket component, battery module and battery package | |
| CN212848715U (en) | Electricity core module | |
| CN111403675A (en) | Battery and electronic device | |
| CN212625810U (en) | Battery core cover plate, battery core and battery pack | |
| CN212161901U (en) | Battery pack with rate discharge balanced temperature field heat dissipation device | |
| KR20180131921A (en) | Battery pack | |
| CN220106838U (en) | Battery module with short-circuit protection function | |
| CN106450128A (en) | Battery group and electrode current piece thereof | |
| CN206116506U (en) | Group battery and utmost point flow thereof | |
| CN107154473B (en) | Battery module structure and battery pack | |
| CN211404627U (en) | Battery tab and battery | |
| CN214280100U (en) | Lithium battery with multifunctional protection | |
| CN114744340A (en) | Single battery and battery pack | |
| CN211980741U (en) | Fusing structure for battery module and battery module | |
| CN219873936U (en) | Connection piece and battery module | |
| CN207690899U (en) | PCB cylinder manifolds | |
| CN206076356U (en) | A kind of battery modules | |
| CN218334202U (en) | Battery switching piece and battery top cap structure | |
| CN113889708A (en) | Vehicle and battery pack thereof | |
| CN220456599U (en) | Battery module | |
| CN218602505U (en) | Lithium ion battery integrated structure | |
| CN219696654U (en) | Parallel support for soft package battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |