CN115632214B - Connection piece of battery, battery and electricity utilization device - Google Patents
Connection piece of battery, battery and electricity utilization device Download PDFInfo
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- CN115632214B CN115632214B CN202211352098.8A CN202211352098A CN115632214B CN 115632214 B CN115632214 B CN 115632214B CN 202211352098 A CN202211352098 A CN 202211352098A CN 115632214 B CN115632214 B CN 115632214B
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- 230000005611 electricity Effects 0.000 title description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 187
- 230000007704 transition Effects 0.000 claims abstract description 98
- 239000003351 stiffener Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 description 11
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a connecting piece of a battery, the battery and an electric device, wherein the connecting piece of the battery comprises: the first connecting part is used for being electrically connected with the pole; the second connecting parts are arranged at intervals along the first direction, and each second connecting part is used for being electrically connected with the electrode lug; the first transition part is connected between the first connecting part and the plurality of second connecting parts; the plurality of second transition parts are arranged, each second transition part is positioned at the edge of the connecting sheet and is connected to one side, far away from the first transition part, of the corresponding second connecting part; and the first reinforcing structure is arranged on at least one of the first transition part and the second transition part, so that the tensile strength E0 of the connecting sheet is in the range of 250 Mpa-450 Mpa. According to the connecting piece of the battery, the first reinforcing structure is arranged, so that the integral strength of the connecting piece can be improved, the connecting piece is not easy to deform, and the stability of connection between the connecting piece and the battery is improved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a connecting sheet of a battery, the battery and an electric device.
Background
The connecting piece in the related art is used for realizing connection between the battery core and the pole in the battery, but because the structure of the connecting piece is fragile, when the connecting piece is welded with the pole or the pole lug of the battery core, the connecting piece is easy to deform when the battery moves or collides.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the connecting piece of the battery, and the integral strength of the connecting piece can be improved by arranging the first reinforcing structure, so that the connecting piece is not easy to deform, and the connection stability of the connecting piece and the battery is improved.
The invention also provides a battery with the connecting sheet of the battery and an electric device.
The connecting piece of the battery according to the embodiment of the first aspect of the invention comprises: the first connecting part is used for being electrically connected with the pole; the second connecting parts are arranged at intervals along a first direction, the first connecting parts and the second connecting parts are arranged at intervals along a second direction, each second connecting part is used for being electrically connected with the tab, and the second direction is perpendicular to the first direction; a first transition portion connected between the first connection portion and the plurality of second connection portions; the plurality of second transition parts are arranged, each second transition part is positioned at the edge of the connecting sheet and connected to one side, away from the first transition part, of the corresponding second connecting part; the first reinforcing structure is arranged on at least one of the first transition part and the second transition part, so that the tensile strength E0 of the connecting sheet is in the range of 250 Mpa-450 Mpa.
According to the connecting piece of the battery, the first reinforcing structure is arranged, so that the integral strength of the connecting piece can be improved, the connecting piece is not easy to deform, and the stability of connection between the connecting piece and the battery is improved.
In addition, the connecting piece of the battery according to the above embodiment of the present invention may have the following additional technical features:
according to some embodiments of the invention, the first reinforcing structure comprises a plurality of reinforcing ribs, the plurality of reinforcing ribs comprises at least one first reinforcing rib and at least one second reinforcing rib, the first reinforcing rib and the second reinforcing rib respectively extend into long strips, and the extending direction of the first reinforcing rib and the extending direction of the second reinforcing rib intersect at a non-zero included angle.
In some embodiments, the first stiffener extends in the first direction, the second stiffener extends in the second direction, and the first stiffener and the second stiffener are disposed to intersect.
In some embodiments, the thickness of the connecting sheet is t, and the height of the reinforcing rib protruding from the surface of the connecting sheet is t1, and t1 is less than or equal to 3*t.
In some embodiments, the thickness of the connecting sheet is t, the number of the first reinforcing ribs is multiple, the first reinforcing ribs are arranged at intervals, and the interval between two adjacent first reinforcing ribs is x, wherein x is larger than or equal to 2*t; and/or the number of the second reinforcing ribs is multiple, the second reinforcing ribs are arranged at intervals, and the interval between every two adjacent second reinforcing ribs is y which is larger than or equal to 2*t.
According to some embodiments of the invention, the first transition comprises a first portion extending in the first direction in an elongated shape, the connecting piece further comprising: the second reinforcing structure is provided with a first connecting edge and a second connecting edge, the first connecting edge is connected with the first part, at least one of the second connecting part and the second transition part is connected with the second connecting edge, and each second connecting part corresponds to one second reinforcing structure respectively.
In some embodiments, the first transition portion further includes a plurality of second portions, the plurality of second portions being disposed at intervals along the first direction, each of the second portions connecting the first portion and the corresponding second connection portion, at least one of the second connection portion, the second transition portion, and the second portion being connected to the second connection edge.
In some embodiments, the first connection edge and the second connection edge are spaced apart, and a third connection edge is connected between the first connection edge and the second connection edge, and the third connection edge is spaced apart from the first portion; alternatively, the first connecting edge is contiguous with the second connecting edge.
According to a second aspect of the present invention, an embodiment proposes a battery comprising: a pole and a plurality of tabs; a connection piece, which is a connection piece of the battery according to the embodiment of the first aspect of the present invention, the first connection portion is electrically connected to the tab, and each of the second connection portions is electrically connected to the corresponding tab.
According to the battery of the embodiment of the invention, the connecting sheet of the battery according to the embodiment of the first aspect of the invention is utilized, and the plurality of electric cells are connected in parallel by utilizing the connecting sheet, so that the battery can stably output current outwards, and the performance of the battery is conveniently improved.
According to a third aspect of the present invention, an embodiment proposes an electrical device comprising a battery according to an embodiment of the second aspect of the present invention.
According to the electric device of the embodiment of the invention, by using the connecting piece of the battery according to the embodiment of the second aspect of the invention, the battery is used for stably supplying power to the electric device, and the electric device can stably work.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of the structure of a connection tab of a battery according to an embodiment of the present invention in one embodiment.
Fig. 2 is a schematic structural view of a connection tab of a battery according to an embodiment of the present invention in another embodiment.
Fig. 3 is a schematic view of the structure of a connection tab of a battery according to an embodiment of the present invention in another embodiment.
Fig. 4 is a partial schematic structure of a battery according to an embodiment of the present invention.
Reference numerals:
a connecting piece 10, a first connecting portion 11, a second connecting portion 12,
the first transition 13, the first portion 131, the second portion 132,
the second transition portion 14 is provided with a first transition portion,
the first reinforcing structure 15, the reinforcing rib 150, the first reinforcing rib 151, the second reinforcing rib 152,
the second reinforcing structure 16, the first connecting edge 161, the second connecting edge 162, the third connecting edge 163, the hollowed-out portion 17,
battery 20, electric core 21, first electric core 211, second electric core 212, anodal ear 221, negative pole ear 222, first connection piece 23, second connection piece 24, top cap 25.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.
Reference herein to a battery refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, or the like. The battery generally comprises a box body for packaging one or more battery cells or a plurality of battery modules, wherein the box body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells; of course, the battery may not include the case.
The connecting sheet 10 of the battery according to the embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the connection tab 10 of the battery according to the embodiment of the present invention includes a first connection part 11, a second connection part 12, a first transition part 13, a second transition part 14, and a first reinforcement structure 15.
The connection sheet 10 is formed in a sheet structure, the first connection portion 11 is used for being electrically connected with the tab, the second connection portion 12 is plural, each second connection portion 12 is used for being electrically connected with the tab, and then the connection sheet 10 can electrically connect plural corresponding tabs of the battery 20, wherein the first transition portion 13 is connected between the first connection portion 11 and the plural second connection portions 12, that is, the first transition portion 13 is connected with the first connection portion 11, and the first transition portion 13 is connected with each second connection portion 12, so that the tab electrically connected with the first connection portion 11 can provide a proper voltage.
It can be seen that the connection piece 10 can electrically connect the electrode post with the corresponding plurality of electrode lugs, and the battery 20 has a positive electrode post and a negative electrode post, the connection piece 10 corresponding to the positive electrode post can electrically connect the positive electrode post with the corresponding plurality of electrode lugs, and the connection piece 10 corresponding to the negative electrode post can electrically connect the negative electrode post with the corresponding plurality of electrode lugs, so as to enable the battery 20 to supply power to external parts.
Moreover, the first transition portion 13 may separate the first connection portion 11 from the plurality of second connection portions 12, so that even if there are machining errors, assembly errors, etc. in the process of electrically connecting the connection piece 10 with the pole and the pole lug, the first transition portion 13 may adapt to certain deformation so as to adapt to the errors, and ensure that the first connection portion 11 is electrically connected with the pole smoothly, and the second connection portion 12 is electrically connected with the pole lug smoothly.
The plurality of second connection portions 12 are disposed at intervals along the first direction, and a groove may be formed between two adjacent second connection portions 12 and the first transition portion 13, so as to reserve an installation space for the tab of the battery 20, so that each second connection portion 12 can be connected with the corresponding tab.
The first connecting portion 11 and a plurality of second connecting portions 12 set up along the interval of second direction, the second direction is perpendicular with first direction, with first connecting portion 11 and second connecting portion 12 set up in two positions department, on the one hand be convenient for reserve the installation space for the electricity of second connecting portion 12 and utmost point post, on the other hand be convenient for distinguish first connecting portion 11 and second connecting portion 12 directly perceivedly, avoid making battery 20's utmost point ear be connected with first connecting portion 11 when the connection piece 10 is installed, avoid making utmost point post be connected with second connecting portion 12 when the connection piece 10 is installed, be favorable to realizing the foolproof design of connection piece 10, be convenient for promote connection piece 10's installation effectiveness.
For example, in the example of fig. 1, there are one first connecting portion 11 and two second connecting portions 12, both the two second connecting portions 12 are provided at one end of the first transition portion 13 away from the first connecting portion 11 in the second direction, the two second connecting portions 12 are provided at a distance in the first direction, and the first connecting portion 11 is provided between the two second connecting portions 12. Of course, the number of the second connecting parts 12 may be three or more; the installation position of the first connection portion 11 with respect to the plurality of second connection portions 12 is not limited thereto.
The second transition portions 14 are multiple, each second transition portion 14 is located at the edge of the connecting piece 10, and each second transition portion 14 is connected to one side, away from the first transition portion 13, of the corresponding second connecting portion 12.
It can be seen that the opposite sides of the second connecting portion 12 are respectively connected with the first transition portion 13 and the second transition portion 14, so that the edges of the opposite sides of the second connecting portion 12 are not formed into the edges of the connecting sheet 10, thereby avoiding the second connecting portion 12 from being folded to a certain extent, and facilitating the connecting sheet 10 to maintain a sheet-like structure all the time.
At least one of the first transition portion 13 and the second transition portion 14 is provided with a first reinforcing structure 15, so that the structural strength, the tensile strength and the bending strength of the connecting sheet 10 are reinforced by using the first reinforcing structure 15, the tensile strength E0 of the connecting sheet 13 is reinforced to be in the range of 250 Mpa-450 Mpa, for example, the E0 can be 250Mpa, 300Mpa, 350Mpa, 400Mpa, 450Mpa or the like, and in some technologies, the tensile strength of the connecting sheet 13 is basically about 150Mpa, and the connecting sheet 10 can be prevented from being deformed in the processing process (such as the post surface treatment of the connecting sheet 10), or in the installation process, the using process or the like, so that the structural stability of the connecting sheet 10 is improved, the sheet structure of the connecting sheet 10 is ensured to be maintained all the time, and the connection of the connecting sheet 10 with a pole and a pole lug of a battery 20 is prevented from being influenced.
Specifically, when the first reinforcement structure 15 is disposed on the first transition portion 13, the structural strength, tensile strength and bending strength of the first transition portion 13 can be enhanced, and bending and the like of the first transition portion 13 are avoided, so that the sheet structure of the connecting sheet 10 can be maintained, smooth connection of the connecting sheet 10 with the pole and the pole lug is realized, and meanwhile, occupation space of the connecting sheet 10 in the battery 20 is saved, and energy density of the battery 20 can be improved to a certain extent.
When the first reinforcing structure 15 is arranged on the second transition portion 14, the structural strength, tensile strength and bending strength of the second transition portion 14 can be enhanced, and the second transition portion 14 is arranged at one side of the second connecting portion 12 far away from the first transition portion 13, so that the first reinforcing structure 15 arranged on the second transition portion 14 can also indirectly strengthen the structural strength of the second connecting portion 12, deformation such as bending and the like of the second connecting portion 12 is avoided, the stability of the battery 20 and the connecting piece 10 in cooperation is conveniently improved, the overall stability of the battery 20 is further improved, and meanwhile, the occupied space of the connecting piece 10 in the battery 20 is also facilitated to be saved, so that the energy density of the battery 20 can be improved to a certain extent.
It can be seen that, set up first additional strengthening 15 on at least one of first transition portion 13 and second transition portion 14, can guarantee when strengthening the structural strength of connection piece 10 that first additional strengthening 15 can not cause shielding to first connecting portion 11 and second connecting portion 12, avoid first additional strengthening 15 can cause the influence to the connection of first connecting portion 11 and utmost point post, to the connection of second connecting portion 12 and utmost point ear, guarantee connection piece 10 and install smoothly.
Therefore, according to the connecting piece 10 of the battery in the embodiment of the invention, the first reinforcing structure 15 is arranged on at least one of the first transition portion 13 and the second transition portion 14, so that the overall structural strength, the tensile strength and the bending strength of the connecting piece 10 are improved on the premise that the connecting piece 10 is smoothly connected with the pole post and the pole lug respectively, the connecting piece 10 is not easy to bend and deform, the turnover of the first connecting portion 11 and the second connecting portion 12 is avoided, the structural stability of the connecting piece 10 is improved, and the connection stability of the connecting piece 10 and the battery 20 is further improved.
In some embodiments of the present invention, the connecting piece 10 is made of an alloy material, and then the material of the connecting piece 10 may be doped with some other metal materials, so as to facilitate improving the hardness of the connecting piece 10, increasing the tensile strength of the connecting piece 10, so as to improve the overall structural strength of the connecting piece 10, make the connecting piece 10 not easy to deform, and further improve the connection stability of the connecting piece 10 and the battery 20.
In some embodiments, the connection piece 10 is an aluminum alloy piece, the tensile strength of the connection piece 10 is E1, and E1 is more than or equal to 250MPa and less than or equal to 360MPa, for example, E1 can be more than or equal to 250MPa, or 280MPa, or 300MPa, or 350MPa, or 360MPa, or the like, or the connection piece 10 is a copper alloy piece, the tensile strength of the connection piece 10 is E2, and E2 is more than or equal to 300MPa and less than or equal to 450MPa, for example, E2 can be more than or equal to 300MPa, or 350MPa, or 400MPa, or 450MPa, or the like.
It will be appreciated that when the connection piece 10 is an aluminum alloy piece, the connection piece 10 may be used as a positive connection piece of the battery 20, where the connection piece 10 connects a positive post and a positive tab of the battery 20; when the connection piece 10 is a copper alloy piece, the connection piece 10 may be used as a negative connection piece of the battery 20, in which case the connection piece 10 connects a negative electrode post and a negative electrode tab of the battery 20.
It can be seen that, for some technologies, adopt aluminum alloy to make the connection piece, the tensile strength of connection piece is approximately 120Mpa, and this application has effectively promoted the tensile strength of aluminum alloy connection piece through setting up first additional strengthening 15. Also, for some technologies, adopt the copper alloy to make the connection piece, the tensile strength of connection piece is approximately 140Mpa, and this application has effectively promoted the tensile strength of aluminum alloy connection piece through setting up first additional strengthening 15.
Specifically, the present inventors performed a tensile test on the plurality of connection pieces 10, fixing both ends of the length of the first transition portion 13, and performing a tensile test on the first transition portion 13 along the first direction to measure the tensile strength of each connection piece 10, wherein the tensile strength is in the range of 250Mpa to 360Mpa for the aluminum alloy connection piece, and the tensile strength E1 is in the range of 300Mpa to 450Mpa for the copper alloy connection piece.
In some embodiments of the present invention, as shown in fig. 1 and 3, the projection of the first connection portion 11 along the third direction (for example, the thickness direction of the connection piece 10 in fig. 1) may be rectangular or square, and the projection of the first connection portion 11 along the third direction may also be trapezoidal, where the third direction is perpendicular to the first direction and the second direction. Of course, the specific shape of the first connection portion 11 may be specifically selected according to the connection of the first connection portion 11 to the pole, and is not limited thereto.
In some embodiments of the present invention, as shown in fig. 1 and 2, the first reinforcing structure 15 includes a plurality of reinforcing ribs 150, the plurality of reinforcing ribs 150 includes at least one first reinforcing rib 151 and at least one second reinforcing rib 152, and the first reinforcing rib 151 and the second reinforcing rib 152 are respectively extended in a long shape so as to increase the structural strength and rigidity of the connection sheet 10 while excessively increasing the thickness of the connection sheet 10, thereby facilitating the lightweight design of the connection sheet 10, saving costs, and the first reinforcing structure 15 is simple in structure and easy to implement.
The extending direction of the first reinforcing rib 151 and the extending direction of the second reinforcing rib 152 intersect at a non-zero included angle, so that the first reinforcing structure 15 can enhance the bending stiffness of the first transition portion 13 and/or the second transition portion 14 in multiple directions, so as to adapt to the uncertainty of the bending direction when the connecting sheet 100 is bent, thereby further ensuring the structural stability of the connecting sheet 100.
Alternatively, the angle between the extending direction of the first reinforcing rib 151 and the extending direction of the second reinforcing rib 152 is 30 °, 45 °, 60 °, 90 °, or the like.
Further, the first reinforcing rib 151 and the second reinforcing rib 152 are respectively elongated, so that the structural strength of the entire connecting piece 10 can be increased, and the first reinforcing rib 151 and the second reinforcing rib 152 are less likely to be deformed when the surface treatment is subsequently performed on the first reinforcing rib 151 and the second reinforcing rib 152.
In some alternative embodiments of the present invention, the first reinforcing rib 151 extends along the first direction, the second reinforcing rib 152 extends along the second direction, and the first reinforcing rib 151 and the second reinforcing rib 152 are disposed in an intersecting manner, so that the structural strength of the first transition portion 13 and/or the second transition portion 14 is increased by using the first reinforcing rib 151 and the second reinforcing rib 152, and further, the structural strength of the whole connecting piece 10 is increased, so that the connecting piece 10 is not easy to deform, and further, the stability of connecting the connecting piece 10 with the battery 20 is improved, meanwhile, the provided arrangement area of the first transition portion 13 and/or the second transition portion 14 is conveniently and effectively utilized, the number of the reinforcing ribs 150 is appropriately increased, and the tensile strength and the bending strength of the connecting piece 100 are further improved.
Of course, the extending direction of the first reinforcing rib 151 is not limited thereto, for example, the first reinforcing rib 151 may extend along a direction intersecting the first direction at a non-zero angle; also, the extending direction of the second reinforcing rib 152 is not limited thereto, and for example, the second reinforcing rib 152 may extend in a direction intersecting the second direction at a non-zero angle.
It is understood that the number of the first reinforcing ribs 151 and the number of the second reinforcing ribs 152 may be specifically set according to actual requirements.
As shown in fig. 3, in the present embodiment, the first transition portion 13 is provided with a first reinforcing rib 151 and a plurality of second reinforcing ribs 152, an included angle between the first reinforcing rib 151 and the second reinforcing ribs 152 is 90 °, the first reinforcing ribs 151 extend along a first direction, the plurality of second reinforcing ribs 152 are disposed at intervals along the first direction, the second reinforcing ribs 152 extend along a second direction, and each of the second reinforcing ribs 152 intersects with the first reinforcing rib 151.
The second transition portion 14 is provided with a first reinforcing rib 151 and a second reinforcing rib 152, the first reinforcing rib 151 and the second reinforcing rib 152 are intersected, an included angle between the first reinforcing rib 151 and the second reinforcing rib 152 is 90 degrees, the first reinforcing rib 151 extends along the first direction, and the second reinforcing rib 152 extends along the second direction.
In other embodiments, the first transition portion 13 is provided with a plurality of first reinforcing ribs 151 and a plurality of second reinforcing ribs 152, an included angle between the first reinforcing ribs 151 and the second reinforcing ribs 152 is 90 °, the first reinforcing ribs 151 extend along the first direction, the second reinforcing ribs 152 extend along the second direction, the plurality of first reinforcing ribs 151 are disposed at intervals along the second direction, and the plurality of second reinforcing ribs 152 are disposed at intervals along the first direction.
The second transition portion 14 is provided with a plurality of first reinforcing ribs 151 and a plurality of second reinforcing ribs 152, an included angle between the first reinforcing ribs 151 and the second reinforcing ribs 152 is 90 °, the first reinforcing ribs 151 extend along a first direction, the second reinforcing ribs 152 extend along a second direction, the plurality of first reinforcing ribs 151 are arranged at intervals along the second direction, and the plurality of second reinforcing ribs 152 are arranged at intervals along the first direction.
Alternatively, the connection piece 10 may be an integral piece, the reinforcing rib 150 may be a protrusion formed on at least one of the first transition portion 13 and the second transition portion 14, the protrusion protruding from a surface of the at least one of the first transition portion 13 and the second transition portion 14 toward one side of the thickness direction of the connection piece 10, and at this time, a position of the other side surface of the at least one of the first transition portion 13 and the second transition portion 14 corresponding to the protrusion may be formed as a groove, so that processing of the reinforcing rib 150 may be facilitated, for example, the reinforcing rib 150 may be formed by punching.
Of course, the structure of the reinforcing bar 150 is not limited thereto; for example, the reinforcing rib 150 may also be a protrusion or a groove formed on a thickness side surface of at least one of the first transition portion 13 and the second transition portion 14.
In some alternative embodiments of the present invention, the thickness of the connecting piece 10 is t, the height of the rib 150 protruding from the surface of the connecting piece 10 is t1, and t1 is less than or equal to 3*t, so as to limit the height of the rib 150 protruding from the surface of the connecting piece 10 according to the thickness of the connecting piece 10, and avoid difficult processing caused by too high height of the rib 150 protruding from the surface of the connecting piece 10, excessive space occupation of the connecting piece 10, and the like.
In some embodiments, the thickness t of the connecting piece 10 is 2mm-6mm, alternatively the thickness of the connecting piece 10 may be 2mm, 3mm, 4mm, 5mm, 6mm, etc. When the thickness of the connection link is 2mm, the height t1 of the reinforcing rib 150 protruding from the surface of the connection link 10 is less than or equal to 6mm, alternatively t1 may be 2mm, 4mm, 6mm, or the like; when the thickness of the connection link is 3mm, the height t1 of the reinforcing rib 150 protruding from the surface of the connection link 10 is 9mm or less, alternatively t1 may be 2mm, 4mm, 6mm, 8mm, 9mm or the like; when the thickness of the connection link is 4mm, the height t1 of the rib 150 protruding from the surface of the connection link 10 is 12mm or less, alternatively t1 may be 2mm, 4mm, 6mm, 8mm, 10mm, 12mm or the like; when the thickness of the connection link is 5mm, the height t1 of the reinforcing rib 150 protruding from the surface of the connection piece 10 is 15mm or less, alternatively t1 may be 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 15mm or the like; when the thickness of the connection link is 6mm, the height t1 of the rib 150 protruding from the surface of the connection link 10 is 18mm or less, alternatively t1 may be 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm or the like.
In some alternative embodiments of the present invention, the thickness of the connecting piece 10 is t, the number of the first reinforcing ribs 151 is plural, the plural first reinforcing ribs 151 are arranged at intervals, the interval between two adjacent first reinforcing ribs 151 is x, x is equal to or greater than 2*t, so that the positions of the plural first reinforcing ribs 151 are controlled according to the thickness of the connecting piece 10, so that the structural stability of the connecting piece 10 is ensured by adopting a smaller number of first reinforcing ribs 151, thereby simplifying the structure of the connecting piece 10 and reducing the processing cost.
In some embodiments, the thickness t of the connecting piece 10 is 2mm-6mm, alternatively the thickness of the connecting piece 10 may be 2mm, 3mm, 4mm, 5mm or 6mm. When the thickness of the connection link is 2mm, the interval between two adjacent first reinforcing ribs 151 is x.gtoreq.4 mm, alternatively x may be 4mm, 5mm, 6mm, 7mm or the like; when the thickness of the connection link is 3mm, the interval between two adjacent first reinforcing ribs 151 is x.gtoreq.6 mm, alternatively x may be 6mm, 7mm, 8mm, 9mm, 10mm, 11mm or the like; when the thickness of the connection link is 4mm, the interval between two adjacent first reinforcing ribs 151 is x.gtoreq.8 mm, alternatively x may be 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm or the like; when the thickness of the connection link is 5mm, the interval between two adjacent first reinforcing ribs 151 is x.gtoreq.10 mm, alternatively x may be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or the like; when the thickness of the connection link is 6mm, the interval between the adjacent two first reinforcing ribs 151 is x.gtoreq.12 mm, alternatively x may be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm or the like.
In some alternative embodiments of the present invention, the thickness of the connecting piece 10 is t, the number of the second reinforcing ribs 152 is plural, the plural second reinforcing ribs 152 are spaced apart, the spacing between two adjacent second reinforcing ribs 152 is y, y is larger than or equal to 2*t, so as to control the positions of the plural second reinforcing ribs 152 according to the thickness of the connecting piece 10, so that the structural stability of the connecting piece 10 is ensured by adopting a smaller number of the second reinforcing ribs 152, thereby simplifying the structure of the connecting piece 10 and reducing the processing cost.
In some embodiments, the thickness t of the connecting piece 10 is 2mm-6mm, alternatively the thickness of the connecting piece 10 may be 2mm, 3mm, 4mm, 5mm or 6mm. When the thickness of the connection link is 2mm, the interval between two adjacent second reinforcing ribs 152 is y.gtoreq.4 mm, alternatively y may be 4mm, 5mm, 6mm, 7mm or the like; when the thickness of the connection link is 3mm, the interval between two adjacent second reinforcing ribs 152 is y.gtoreq.6 mm, alternatively y may be 6mm, 7mm, 8mm, 9mm, 10mm, 11mm or the like; when the thickness of the connection link is 4mm, the interval between two adjacent second reinforcing ribs 152 is y.gtoreq.8 mm, alternatively y may be 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm or the like; when the thickness of the connection link is 5mm, the interval between two adjacent second reinforcing ribs 152 is y.gtoreq.10 mm, alternatively y may be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or the like; when the thickness of the connection link is 6mm, the interval between the adjacent two second reinforcing ribs 152 is y.gtoreq.12 mm, alternatively y may be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm or the like.
In still other embodiments, the thickness of the connecting piece 10 is t, the first reinforcing ribs 151 and the second reinforcing ribs 152 are respectively multiple, the multiple first reinforcing ribs 151 are arranged at intervals, the interval between two adjacent first reinforcing ribs 151 is x, the multiple second reinforcing ribs 152 are arranged at intervals, the interval between two adjacent second reinforcing ribs 152 is y, x is larger than or equal to 2*t, and y is larger than or equal to 2*t.
As shown in fig. 2, in some embodiments of the present invention, the first transition portion 13 includes a first portion 131, the first portion 131 extends in a strip shape along a first direction, the connecting piece 10 further includes a second reinforcing structure 16, the second reinforcing structure 16 has a first connecting edge 161 and a second connecting edge 162, the first connecting edge 161 is connected with the first portion 131, at least one of the second connecting portion 12 and the second transition portion 14 is connected with the second connecting edge 162, each second connecting portion 12 corresponds to one second reinforcing structure 16, and the second reinforcing structure 16 corresponding to the second connecting portion 12 can connect at least one of the second connecting portion 12 and the corresponding second transition portion 14 with the first portion 131, so that a polygonal structure (e.g. a triangle structure) is formed between the second connecting portion 12 and at least one of the corresponding second transition portion 14, the first portion 131 and the second reinforcing structure 16, so as to facilitate increasing the overall strength of the connecting piece 10, so that the connecting piece 10 is not prone to deform, and the stability of the connecting piece 10 with the battery 20 is improved.
As shown in fig. 2, in the present embodiment, the connecting piece 10 includes one first transition portion 13, two second connecting portions 12, two second transition portions 14, and one first connecting portion 11, the two second connecting portions 12 are disposed on the left and right sides of the first transition portion 13, the second transition portions 14 are disposed below the corresponding second connecting portions 12, the first connecting portion 11 is disposed at an intermediate position of the first transition portion 13, and the first connecting portion 11 and the second connecting portion 12 extend in opposite directions.
The connecting piece 10 further comprises two second reinforcing structures 16, wherein the second reinforcing structures 16 are arranged below the first transition portion 13, the two second reinforcing structures 16 are located between the two second connecting portions 12, the first connecting edge 161 of each second reinforcing structure 16 is connected with the first portion 131, and the second connecting edge 162 of each second reinforcing structure 16 is connected with the corresponding second connecting portion 12 and/or the corresponding second transition portion 14.
In some alternative embodiments of the present invention, as shown in fig. 2, the first connecting edge 161 and the second connecting edge 162 are spaced apart, and a third connecting edge 163 is connected between the first connecting edge 161 and the second connecting edge 162, and the third connecting edge 163 is spaced apart from the first portion 131, so that a hollowed-out portion 17 is formed between the third connecting edge 163 and the first portion 131, so that on the premise of ensuring the structural stability of the connecting piece 10, the material consumption of the connecting piece 10 is reduced, and the cost is reduced.
For example, in the example of fig. 2, the first connecting edge 161 is connected to the first portion 131, the second connecting edge 162 is connected to the second connecting portion 12, and the third connecting edge 163, the first portion 131, and the second connecting portion 12 define the hollowed-out portion 17. Of course, in still other examples, the first connecting edge 161 is connected to the first portion 131, the second connecting edge 162 is connected to the second transition portion 14, and the third connecting edge 163, the first portion 131, the second connecting portion 12, and the second transition portion 14 define the hollowed-out portion 17.
In some embodiments, as shown in fig. 2, the second reinforcing structure 16 is an elongated structure, the second reinforcing structure 16 extends along an oblique extending direction, and the first connecting edge 161 and the second connecting edge 162 are respectively located at two ends of the length of the second reinforcing structure 16, where the shape of the hollowed-out portion 17 defined on the connecting piece 10 may be a triangle (e.g. a right triangle). It can be seen that the second reinforcing structure 16 formed into a strip-shaped structure has good compression and tension resistance, further improves the structural stability of the connecting sheet 10, and avoids bending the connecting sheet 10.
In other embodiments, the second reinforcing structure 16 includes a third reinforcing rib and a fourth reinforcing rib, one end of the third reinforcing rib has a first connecting edge 161, the other end of the third reinforcing rib is connected with one end of the fourth reinforcing rib, the other end of the fourth reinforcing rib has a second connecting edge 162, and an included angle is formed between the connecting positions of the third reinforcing rib and the fourth reinforcing rib, and at this time, the hollowed portion 17 defined on the connecting piece 10 is quadrangular.
In some examples, the angle between the third rib and the fourth rib is 90 °, the third rib extends along the second direction, and the fourth rib extends along the first direction, and the hollowed-out portion 17 defined on the connecting piece 10 is rectangular.
Of course, the structure of the second reinforcing structure 16 is not limited thereto; for example, the second reinforcing structure 16 may also be formed as other polygonal structures.
In other alternative embodiments of the present invention, as shown in fig. 3, the first connecting edge 161 and the second connecting edge 162 are adjacent to each other, so that the first connecting edge 161 and the second connecting edge 162 are adjacently disposed, and the first connecting edge 161 and the second connecting edge 162 are connected, at this time, no hollowed-out portion is formed between the second reinforcing structure 16 and the first transition portion 13 and the second connecting portion 12, which can also increase the overall strength of the connecting sheet 10, so that the connecting sheet 10 is not easy to deform, and further, the stability of connecting the connecting sheet 10 with the battery 20 is improved.
As shown in fig. 3, in the present embodiment, the second reinforcing ribs 152 extend along the second direction on the first transition portion 13, and at least one second reinforcing rib 152 may extend to the edge of the second reinforcing structure 16 along the second direction, so that the structural strength of the second reinforcing structure 16 is further increased by using the second reinforcing ribs 152, so as to further increase the structural strength of the whole connecting piece 10.
In some embodiments, as shown in fig. 3, the second reinforcing structure 16 is a triangular structure, the first connecting edge 161 extends in a first direction, the second connecting edge 162 extends in a second direction, and the first connecting edge 161 abuts the second connecting edge. It can be seen that the second reinforcing structure 16 formed in a triangular structure has good compression resistance, tensile resistance and stability, and further improves the structural stability of the connecting sheet 10, so as to avoid bending the connecting sheet 10.
In other embodiments, the second reinforcing structure 16 is a quadrilateral structure, the first connecting edge 161 extends in a first direction, the second connecting edge 162 extends in a second direction, and the first connecting edge 161 abuts the second connecting edge 162.
In some alternative embodiments of the present invention, as shown in fig. 2, the first transition portion 13 further includes a plurality of second portions 132, where the plurality of second portions 132 are disposed at intervals along the first direction, and each second portion 132 connects the first portion 131 and the corresponding second connection portion 12, so as to connect the second connection portion 12 and the second portion 132 together, so that the current in the battery 20 can flow to the post through the second connection portion 12, the second portion 132, the first portion 131, and the first connection portion 11, and thus, the electrical connection of the battery 20 as an external component is achieved.
At least one of the second connecting portion 12, the second transition portion 14 and the second portion 132 is connected with the second connecting edge 162, so that the overall strength of the connecting sheet 10 is reinforced by using the second reinforcing structure 16, so that the connecting sheet 10 is not easy to deform, the stability of connecting the connecting sheet 10 with the battery 20 is improved, and meanwhile, flexible design of the second reinforcing structure 16 is convenient to realize, so as to better meet actual differentiation requirements.
Specifically, the second portion 132, the second connecting portion 12 and the second transition portion 14 are sequentially disposed along the second direction, and the second connecting edge 162 is connected to any one or more of the second connecting portion 12, the second transition portion 14 and the second portion 132 to achieve the purpose of reinforcing the overall strength of the connecting sheet 10.
The battery 20 according to the embodiment of the present invention is described below. The battery 20 according to the embodiment of the present invention includes a tab, a plurality of tabs, and the connection tab 10 of the battery according to the above-described embodiment of the present invention.
The first connection portion 11 is electrically connected with the pole, each second connection portion 12 is electrically connected with the corresponding pole lug, current in the battery 20 can flow to the second connection portion 12 through the pole lug, and flows to the first connection portion 11 along the second connection portion 12 and the first transition portion 13, so that the current in the battery 20 can be electrically connected with the pole lug and an external part through the first connection portion 11, and the battery 20 can supply power to the external part.
As shown in fig. 4, in some alternative embodiments of the present invention, the battery 20 includes two electric cells 21, the two electric cells 21 are respectively a first electric cell 211 and a second electric cell 212, each electric cell 21 is provided with a positive tab 221 and a negative tab 222, two connecting pieces 10 are disposed in the battery 20, the two connecting pieces 10 are respectively a first connecting piece 23 and a second connecting piece 24, the connecting piece 10 includes two second connecting portions 12, and the battery 20 further includes two poles, which are respectively a positive pole and a negative pole.
The first connecting piece 23 and the second connecting piece 24 are disposed at intervals in the up-down direction, the two second connecting portions 12 on the connecting piece 10 are disposed at intervals in the left-right direction, and the positive tab 221 and the negative tab 222 on the cell 21 are disposed at intervals in the up-down direction (it should be understood that the above-mentioned limitation is only for convenience of description of the drawings, and the limitation is not made on the actual disposition position and direction of the connecting piece 10 of the battery).
The positive electrode lug 221 of the first electric core 21 is connected with the second connecting part 12 on the left side of the first connecting sheet 23, the negative electrode lug 222 of the first electric core 21 is connected with the second connecting part 12 on the left side of the second connecting sheet 24, the positive electrode lug 221 of the second electric core 212 is connected with the second connecting part 12 on the right side of the first connecting sheet 23, the negative electrode lug 222 of the second electric core 212 is connected with the second connecting part 12 on the right side of the second connecting sheet 24, so that the two electric cores 21 are connected in parallel by utilizing the two connecting sheets 10, the positive electrode lug 221 of the two electric cores 21 is connected with the positive electrode post of the battery 20, the negative electrode lug 222 of the two electric cores 21 is connected with the negative electrode post of the battery 20, and current in the two electric cores 21 can flow into external parts through the electrode post, and the battery 20 can supply power to the external parts.
In some embodiments, the tab and the second connection portion 12 are connected by welding, and the post and the first connection portion 11 are connected by welding.
In some alternative embodiments of the present invention, the battery 20 further includes a housing and a top cover 25, the housing is formed with an opening, the top cover 25 covers the opening, a receiving cavity is formed between the top cover 25 and the housing, and the battery cell 21 is disposed in the receiving cavity.
According to the battery 20 of the embodiment of the present invention, by using the connection tab 10 of the battery according to the above-described embodiment of the present invention, by connecting the plurality of battery cells 21 in parallel using the connection tab 10, the battery 20 can stably output a current to the outside, facilitating improvement of the performance of the battery 20.
The electricity consumption device according to the embodiment of the present invention includes the battery 20 according to the above-described embodiment of the present invention.
According to the electricity consumption device of the embodiment of the present invention, by using the battery 20 according to the above-described embodiment of the present invention, the electricity consumption device is stably supplied with power using the battery 20, and the electricity consumption device can stably operate.
The electric device disclosed in the embodiment of the application can be, but is not limited to, a vehicle, a mobile phone, a tablet, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool and the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle, a new energy vehicle or a railway vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, an extended range vehicle or the like; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others.
It will be appreciated that the battery 20 is used to power the powered device, for example, the battery 20 may be used as an operating power source for the powered device, and for example, the battery 20 may be used not only as an operating power source for the powered device but also as a driving power source for the powered device.
Alternatively, where the powered device is a vehicle, the battery 20 may be disposed at the bottom, or at the head, or at the tail of the vehicle. The battery 20 may be used for power supply of the vehicle, for example, the battery 20 may be used as an operating power source of the vehicle. The vehicle may also include a controller and a motor, the controller being configured to control the battery 20 to power the motor, for example, for operating power requirements during start-up, navigation, and travel of the vehicle. In some embodiments of the present application, the battery 20 may be used not only as an operating power source for a vehicle, but also as a driving power source for a vehicle, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle.
Other constructions and operations of the power utilization device according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the invention, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the invention, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" 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 invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A connection piece of a battery, the battery comprising a tab and a post, the connection piece being formed in a sheet-like structure and comprising:
the first connecting part is used for being electrically connected with the pole;
the second connecting parts are arranged at intervals along a first direction, the first connecting parts and the second connecting parts are arranged at intervals along a second direction, each second connecting part is used for being electrically connected with the tab, and the second direction is perpendicular to the first direction;
a first transition portion connected between the first connection portion and the plurality of second connection portions, the first transition portion including a first portion extending in the first direction to be elongated;
the plurality of second transition parts are arranged, each second transition part is positioned at the edge of the connecting sheet and connected to one side, away from the first transition part, of the corresponding second connecting part;
The first reinforcing structure is arranged on at least one of the first transition part and the second transition part, so that the tensile strength E0 of the connecting sheet is in the range of 250 Mpa-450 Mpa, the first reinforcing structure comprises a plurality of reinforcing ribs, the plurality of reinforcing ribs comprise at least one first reinforcing rib and at least one second reinforcing rib, the first reinforcing rib and the second reinforcing rib respectively extend to be long strips, an included angle which is formed by intersecting the extending direction of the first reinforcing rib and the extending direction of the second reinforcing rib is non-zero, the thickness of the connecting sheet is t, and the height of the reinforcing rib protruding out of the surface of the connecting sheet is t1, and t1 is less than or equal to 3*t;
a second reinforcing structure having a first connecting edge and a second connecting edge, the first connecting edge being connected to the first portion, at least one of the second connecting portion and the second transition portion being connected to the second connecting edge, each of the second connecting portions corresponding to one of the second reinforcing structures;
the plurality of first reinforcing ribs are arranged at intervals, and the interval between two adjacent first reinforcing ribs is x which is larger than or equal to 2*t; and/or the number of the groups of groups,
The second reinforcing ribs are arranged in a plurality, the second reinforcing ribs are arranged at intervals, the interval between every two adjacent second reinforcing ribs is y, and y is larger than or equal to 2*t.
2. The battery connecting tab of claim 1 wherein the first stiffener extends in the first direction, the second stiffener extends in the second direction, and the first stiffener and the second stiffener intersect.
3. The battery connecting tab of claim 1 or 2 wherein the first transition portion further comprises a plurality of second portions spaced apart along the first direction, each of the second portions connecting the first portion and the corresponding second connection portion,
at least one of the second connection portion, the second transition portion, and the second portion is connected to the second connection edge.
4. A battery connecting piece according to claim 1 or 2, characterized in that,
the first connecting edge and the second connecting edge are arranged at intervals, a third connecting edge is connected between the first connecting edge and the second connecting edge, and the third connecting edge and the first part are arranged at intervals, so that a hollowed-out part is formed between the third connecting edge and the first part; or,
The first connection edge and the second connection edge are contiguous.
5. A battery, comprising:
a pole and a plurality of tabs;
a connection sheet, which is a connection sheet of the battery according to any one of claims 1 to 4, the first connection portions being electrically connected with the poles, and each of the second connection portions being electrically connected with the corresponding pole lug.
6. An electrical device comprising the battery according to claim 5.
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|---|---|---|---|
| CN202211352098.8A CN115632214B (en) | 2022-10-31 | 2022-10-31 | Connection piece of battery, battery and electricity utilization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211352098.8A CN115632214B (en) | 2022-10-31 | 2022-10-31 | Connection piece of battery, battery and electricity utilization device |
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| CN115632214A CN115632214A (en) | 2023-01-20 |
| CN115632214B true CN115632214B (en) | 2024-01-23 |
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| CN115632214A (en) | 2023-01-20 |
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