CN219677521U - Battery connection structure, battery and battery pack - Google Patents
Battery connection structure, battery and battery pack Download PDFInfo
- Publication number
- CN219677521U CN219677521U CN202320964343.4U CN202320964343U CN219677521U CN 219677521 U CN219677521 U CN 219677521U CN 202320964343 U CN202320964343 U CN 202320964343U CN 219677521 U CN219677521 U CN 219677521U
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- Prior art keywords
- battery
- dispensing
- cavity
- groove
- fixedly connected
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- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000012212 insulator Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a battery connecting structure, a battery and a battery pack, wherein the battery comprises a battery core and a battery connecting structure, the battery connecting structure comprises a shell, and an installation cavity is formed in the shell; an insulating piece and a connecting plate are arranged in the mounting cavity; the insulating piece is fixedly connected with the battery cell, the insulating piece is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the cavity wall of the mounting cavity. Therefore, when the battery is in an inverted state, the battery core is fixedly connected with the shell through the insulating piece and the connecting plate, and the gravity of the battery core does not act on the tab, so that the tab is not damaged by pressure, and the requirement of battery inversion is met; meanwhile, when the battery shakes, the battery core and the shell are fixedly connected, and the battery core and the lug shake along with the shell, so that the situation that the lug is pulled can not occur, and the service life of the battery is prolonged. Therefore, the battery connecting structure provided by the utility model can ensure that the battery has the advantage of long service life when the battery is inverted.
Description
Technical Field
The utility model relates to the technical field of battery structures, in particular to a battery connecting structure, a battery and a battery pack.
Background
The battery is a device capable of converting chemical energy into electric energy and is widely applied to products such as new energy automobiles, electronic equipment and the like; in general, a new energy vehicle is mounted with a battery module, and a battery pack is provided in the battery module, so that in order to improve performance of the new energy vehicle, a main research direction is to improve energy density of the battery pack.
Currently, in order to increase the energy density, those skilled in the art have schemes employing battery inversion; when the battery is placed in the normal position, the top cover, the electrode lugs, the battery cell and the bottom of the shell are sequentially arranged along the gravity direction, so that the gravity of the battery cell is finally born by the shell; however, when the battery is inverted, the gravity of the battery core is applied to the vulnerable tab, and when the battery is inverted and loaded on a new energy automobile, vibration is necessarily present in the use process, the battery core can shake up and down in the vibration process, the relative position between the battery core and the tab is continuously changed, namely the tab is continuously pulled, so that the service life of the battery is reduced.
Disclosure of Invention
The utility model aims to provide a battery connecting structure, a battery and a battery pack, which are used for solving the problems of long service life and incompatibility of energy density when the current battery is inverted.
To achieve the purpose, the utility model adopts the following technical scheme:
a battery connection structure comprises a housing, wherein a mounting cavity is formed in the housing; an insulating piece and a connecting plate are arranged in the mounting cavity;
the insulating piece is used for being fixedly connected with the battery cell, the insulating piece is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the cavity wall of the mounting cavity;
when the battery cell is inverted, the cavity wall is located above the insulating piece and the connecting plate.
Optionally, the connecting plate is in hot melt connection with the insulating piece.
Optionally, the connection plate is adhered to a cavity wall of the mounting cavity.
Optionally, the connecting plate is provided with a first glue dispensing through groove, and a glue dispensing cavity is formed by surrounding the first glue dispensing through groove and the cavity wall; or the cavity wall is provided with a second dispensing groove, and the second dispensing groove and the connecting plate are enclosed to form a dispensing cavity.
Optionally, the connecting plate is provided with a first dispensing through groove, and the cavity wall is provided with a second dispensing groove;
the first dispensing through groove and the second dispensing groove are surrounded to form a dispensing cavity.
Optionally, the insulating piece comprises an insulating sheet, and the insulating sheet is used for wrapping the battery cell;
the insulating sheet comprises a first end and a second end, the first end and the second end are sequentially arranged along the direction away from the cavity wall, and the first end and the second end are respectively parallel to the cavity wall.
Optionally, the first end portion is attached to the second end portion, and the connecting plate is disposed between the first end portion and the cavity wall.
Optionally, the first end and the second end are provided with avoiding through grooves at positions corresponding to the first dispensing through grooves.
A battery comprises a battery core and the battery connecting structure, wherein the battery core is fixedly connected with an insulating piece.
A battery pack comprising a battery as described above.
Compared with the prior art, the utility model has the following beneficial effects:
according to the battery connecting structure, the battery and the battery pack, the battery core is fixed with the insulating piece, and the insulating piece is fixedly connected with the cavity wall of the mounting cavity through the connecting plate, so that the battery core is fixedly connected with the shell; therefore, when the battery is in an inverted state, the battery core is fixedly connected with the shell through the insulating piece and the connecting plate, and the gravity of the battery core does not act on the tab, so that the tab is not crushed, and the requirement of battery inversion is met; meanwhile, when the battery shakes, the battery core and the shell are fixedly connected, and the battery core and the lug shake along with the shell, so that the situation that the lug is pulled can not occur, and the service life of the battery is prolonged. Therefore, the battery connecting structure provided by the utility model can ensure that the battery has the advantage of long service life when the battery is inverted.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective.
Fig. 1 is a schematic diagram of a front explosion structure of a battery according to an embodiment of the present utility model;
fig. 2 is a schematic view of an inverted explosion structure of a battery according to an embodiment of the present utility model.
Illustration of: 10. a housing; 20. an insulating member; 21. an insulating sheet; 211. a first end; 213. avoiding the through groove; 214. a first side wrap; 215. a second side wrap; 216. a top wrap; 30. a connecting plate; 31. a first dispensing through groove; 40. a battery cell; 50. and a tab.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships 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 devices 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. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 2, fig. 1 is a schematic diagram of an upright explosion structure of a battery according to an embodiment of the present utility model, and fig. 2 is a schematic diagram of an inverted explosion structure of a battery according to an embodiment of the present utility model.
Example 1
The battery connection structure provided in this embodiment is applied to the battery for fixing the battery core 40 in the battery, wherein the tab 50 of the battery is not easy to damage when the battery is inverted by optimizing the battery connection structure.
As shown in fig. 1 to 2, the battery connection structure of the present embodiment includes a housing 10, in which a mounting cavity is formed in the housing 10, wherein the housing 10 includes a housing and a top cover (not shown), the housing is provided with a mounting groove, after components such as a battery cell 40 are placed in the mounting groove, the top cover is fixed at a notch of the mounting groove by welding, so that the notch is closed, and at this time, the mounting cavity is formed; an insulating piece 20 and a connecting plate 30 are arranged in the mounting cavity; the insulating piece 20 is used for fixing the battery cell 40, the insulating piece 20 is fixedly connected with the connecting plate 30, and the connecting plate 30 is fixedly connected with the cavity wall of the mounting cavity; it should be added that, the above-mentioned installation cavity is formed by stamping, and the four corners at the bottom of the housing 10 are arc-shaped, so that the battery cell 40 is higher than the cavity wall, i.e. the four corners at the bottom of the housing 10, by the arrangement of the connection plate 30, and the arc angle is prevented from damaging the battery cell.
Specifically, in the present embodiment, the battery cell 40 is fixed with the insulating member 20, and the insulating member 20 is fixedly connected with the cavity wall of the installation cavity through the connection plate 30, whereby the battery cell 40 is fixedly connected with the housing 10; therefore, when the battery is in an inverted state, the battery cell 40 is fixedly connected with the shell 10 through the insulating piece 20 and the connecting plate 30, and the gravity of the battery cell 40 does not act on the tab 50, so that the tab 50 is not damaged by pressure, and the requirement of inverting the battery is met; meanwhile, when the battery shakes, as the battery core 40 is fixedly connected with the shell 10, the battery core 40 and the tab 50 shake along with the shell 10, the situation that the tab 50 is pulled can not occur, and the service life of the battery is prolonged. Therefore, the battery connection structure provided by the embodiment can enable the battery to have the advantages of high energy density and long service life when the battery is inverted.
In the present embodiment, the connection plate 30 is thermally fused with the insulating member 20. In other alternative embodiments, the connection plate 30 may be connected to the insulator 20 by means of glue.
In this embodiment, the web 30 is bonded to the wall of the mounting cavity. In other alternative embodiments, the connection plate 30 may be connected to the insulator 20 by means of heat fusion.
In a preferred embodiment, the connection plate 30 is connected with the insulating member 20 by hot melting, and the connection plate 30 is adhered to the wall of the installation cavity; it can be understood that, when assembling, the connecting plate 30 and the insulating member 20 are connected by hot melting outside the housing 10, then dispensing is performed on the cavity wall and the connecting plate 30, and after the connecting plate 30 and the insulating member 20 after hot melting are placed into the mounting cavity, the connecting plate 30 is bonded with the cavity wall; it will be appreciated that the arrangement described above provides the advantage of ease of assembly.
Further, in an alternative embodiment, the connecting plate 30 is provided with a first dispensing through groove 31, and the first dispensing through groove 31 and the cavity wall are surrounded to form a dispensing cavity; in another alternative embodiment, a second dispensing slot is formed in the cavity wall, and the second dispensing slot and the connecting plate 30 enclose a dispensing cavity.
As a preferred embodiment, the connecting plate 30 is provided with a first dispensing through groove 31, and the cavity wall is provided with a second dispensing groove; wherein, the first dispensing through groove 31 and the second dispensing through groove enclose to form a dispensing cavity. Through the arrangement of the first glue dispensing through groove 31 and the second glue dispensing through groove, the use amount of glue can be increased on the premise of not occupying the space of the mounting cavity additionally, so that the stability of connection between the connecting plate 30 and the cavity wall is improved, and meanwhile, the energy density of the battery can be ensured not to be reduced because of not occupying the space additionally.
Additionally, in the present embodiment, the first dispensing through groove 31 and the second dispensing through groove are rectangular, and the depth thereof is between 0.3mm and 0.5 mm; it is to be understood that the first dispensing slot 31 and the second dispensing slot may be in other shapes such as square, triangle, circle, etc., and the number is not particularly limited.
In this embodiment, the battery cell 40 includes a bottom, a top and four sides, wherein the two sides have the same size, are oppositely arranged, and have a larger surface area; the other two side parts have the same size, are oppositely arranged and have smaller surface areas; as shown in fig. 1 and 2, the bottom of the insulating member 20 is made to have a single-layer structure, specifically, the insulating member 20 includes an insulating sheet 21, and the insulating sheet 21 is used to wrap the battery cell 40; wherein the insulating sheet 21 comprises a first end 211, the first end 211 being parallel to the cavity wall; wherein, the insulating sheet 21 wraps the top, the side and the bottom of the battery cell 40, and the insulating sheet 21 includes a top wrapping portion 216 wrapping the top of the battery cell 40, a first side wrapping portion 214 wrapping one side of the battery cell 40, a second side wrapping portion 215 wrapping the other side of the battery cell 40, and a first end portion 211 wrapping the bottom of the battery cell 40; before the insulating sheet 21 is formed, one end of the insulating sheet 21 is bent along the height direction of the shell to form a first side wrapping part 214 so as to wrap one side part of the battery cell 40, and then is bent along the width direction of the shell to form a first end part 211 so as to wrap the bottom of the battery cell 40; meanwhile, the other end of the insulating sheet 21 is bent to form a second side wrapping portion 215 to wrap the other side portion of the battery cell 40; the connection area of the insulating sheet 21 between the first side wrapping portion 214 and the second side wrapping portion 215 is a top side wrapping portion 216, and the top side wrapping portion 216 is used for wrapping the top of the battery cell 40. In the present embodiment, the insulator 20 is surrounded by the first side wrapping portion 214, the first end portion 211, the second side wrapping portion 215, and the top side wrapping portion 216, and has the advantage of compact structure.
As another alternative embodiment, the bottom of the insulating member 20 is made to have a double-layer structure, that is, the insulating member 20 includes an insulating sheet 21, and the insulating sheet 21 is used to wrap the battery cell 40; the insulating sheet 21 includes a top wrapping portion 216 wrapping the top of the battery cell 40, a first wrapping portion 214 wrapping one side of the battery cell 40, a second wrapping portion 215 wrapping the other side of the battery cell 40, a first end 211 wrapping the bottom of the battery cell 40, and a second end wrapping the bottom of the battery cell 40; the first end 211 and the second end are sequentially arranged along the direction away from the cavity wall, and the first end 211 and the second end are respectively parallel to the cavity wall. Wherein, the insulating sheet 21 wraps the top, the side and the bottom of the battery cell 40, the insulating sheet 21 is in a sheet structure before being molded, and one end of the insulating sheet 21 is bent along the width direction to form a first side wrapping portion 214 so as to wrap one side of the battery cell 40, and then is bent to form a first end 211 so as to wrap the bottom of the battery cell 40; meanwhile, the other end of the insulating sheet 21 is bent to form a second side wrapping portion 215 to wrap the other side portion of the battery cell 40, and then is bent to form a second end portion to wrap the other side portion of the battery cell 40; the areas of the insulating sheet 21 in the first side wrapping portion 214 and the second side wrapping portion 215 are top side wrapping portions 216, and the top side wrapping portions 216 are used for wrapping the top of the battery cell 40. By overlapping the first end 211 and the second end, the sealing performance of the insulating member 20 with respect to the battery cell 40 is improved.
It should be noted that, in the present embodiment, the first side wrapping portion 214 and the second side wrapping portion 215 are used for wrapping two side portions with larger surface areas; in other alternative embodiments, the insulating sheet 21 further includes a third side wrapping portion for wrapping one side portion with a smaller surface area, and a fourth side wrapping portion for wrapping the other side portion with a smaller surface area, that is, wrapping the four side portions of the cell 40 with the four side wrapping portions of the insulating sheet 21.
In the present embodiment, the first end 211 is attached to the second end, and the connection plate 30 is disposed between the first end 211 and the chamber wall. Further, the first end 211 and the second end are provided with the avoidance through groove 213 corresponding to the first glue through groove 31, so that the insulating member 20 can be connected with the connecting plate 30 through the two ends, and the stability of connection is improved.
In summary, the battery connection structure provided in this embodiment can make the battery have the advantages of high energy density and long service life when the battery is inverted.
Example two
The battery provided in this embodiment includes a battery cell 40 and a battery connecting structure as in embodiment one, where the battery cell 40 is fixedly connected with the insulating member 20. The specific structure and technical effects of the battery connection structure are described in the first embodiment, and the battery of the embodiment refers to the structure and has the technical effects as well; therefore, the battery in this embodiment can be arranged upside down, which has the advantage of high energy density, and avoids the situation that the tab 50 is repeatedly pulled due to vibration, thereby prolonging the service life of the battery.
Example III
The battery pack provided in this embodiment includes one of the batteries of the second embodiment, which can be mounted upside down in the battery pack. In the second embodiment, a specific structure and a technical effect of the battery are described, and the battery pack of the embodiment refers to the structure and has the technical effect as well; therefore, the battery pack of the present embodiment has the advantages of high energy density and long life.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The battery connecting structure is characterized by comprising a shell (10), wherein a mounting cavity is formed in the shell (10); an insulating piece (20) and a connecting plate (30) are arranged in the mounting cavity;
the insulating piece (20) is used for being fixedly connected with the battery cell (40), the insulating piece (20) is fixedly connected with the connecting plate (30), and the connecting plate (30) is fixedly connected with the cavity wall of the installation cavity;
when the battery cell (40) is inverted, the cavity wall is located above the insulator (20) and the connection plate (30).
2. A battery connection structure according to claim 1, wherein the connection plate (30) is thermally fused to the insulating member (20).
3. A battery connection according to claim 1, characterized in that the connection plate (30) is glued to the cavity wall of the mounting cavity.
4. A battery connection structure according to claim 3, wherein the connection board (30) is provided with a first dispensing through groove (31), and the first dispensing through groove (31) and the cavity wall are surrounded to form a dispensing cavity; or, a second dispensing groove is formed in the cavity wall, and a dispensing cavity is formed by surrounding the second dispensing groove and the connecting plate (30).
5. A battery connection structure according to claim 3, wherein the connection plate (30) is provided with a first dispensing through groove (31), and the cavity wall is provided with a second dispensing groove;
wherein, first point gum through groove (31) with the second point gum groove encloses to establish and forms the some gluey cavity.
6. A battery connection structure according to claim 5, wherein the insulating member (20) comprises an insulating sheet (21), the insulating sheet (21) being for wrapping the battery cell (40);
the insulating sheet (21) comprises a first end (211) and a second end, the first end (211) and the second end are sequentially arranged along a direction away from the cavity wall, and the first end (211) and the second end are respectively parallel to the cavity wall.
7. The battery connection structure according to claim 6, wherein the first end portion (211) is attached to the second end portion, and the connection plate (30) is disposed between the first end portion (211) and the cavity wall.
8. The battery connecting structure according to claim 7, wherein the first end portion (211) and the second end portion are provided with avoiding through grooves (213) at positions corresponding to the first dispensing through grooves (31).
9. A battery comprising a battery cell (40) and a battery connection structure according to any one of claims 1-8, said battery cell (40) being fixedly connected to said insulating member (20).
10. A battery pack comprising a battery according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964343.4U CN219677521U (en) | 2023-04-25 | 2023-04-25 | Battery connection structure, battery and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964343.4U CN219677521U (en) | 2023-04-25 | 2023-04-25 | Battery connection structure, battery and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677521U true CN219677521U (en) | 2023-09-12 |
Family
ID=87898170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320964343.4U Active CN219677521U (en) | 2023-04-25 | 2023-04-25 | Battery connection structure, battery and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677521U (en) |
-
2023
- 2023-04-25 CN CN202320964343.4U patent/CN219677521U/en active Active
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