CN110970592A - Electric connection sheet and battery module using same - Google Patents
Electric connection sheet and battery module using same Download PDFInfo
- Publication number
- CN110970592A CN110970592A CN201811160999.0A CN201811160999A CN110970592A CN 110970592 A CN110970592 A CN 110970592A CN 201811160999 A CN201811160999 A CN 201811160999A CN 110970592 A CN110970592 A CN 110970592A
- Authority
- CN
- China
- Prior art keywords
- sheet
- side face
- heat dissipation
- concave
- battery module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 65
- 230000005611 electricity Effects 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6562—Gases with free flow by convection only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of electric connectors, and particularly provides an electric connecting sheet and a battery module using the same. The battery module includes electric core and the electric connection piece of connection between different utmost point posts, the electric connection piece is folded by the lamellar body more than two and is established the formation, and at least a slice lamellar body possesses following characteristic: at least one side face of the sheet body is provided with a concave-convex structure used for increasing the heat dissipation area of the side face, and the side face is the side face adjacent to other sheet bodies. The extending direction of the channel that concave-convex structure formed is on a parallel with the adjacent side between the lamellar body, and is perpendicular with the thickness direction of electricity connection piece, in this direction, does not have the structure that influences the gas flow to guarantee that concave-convex structure can form the complete passageway that supplies the gas flow, improved the radiating effect of electricity connection piece, controlled the temperature rise of electricity connection piece effectively, make battery module more stable at the during operation.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to an electric connecting sheet and a battery module using the same.
Background
In the power electricity core field, in order to obtain great output current and output voltage, often assemble a plurality of electric cores into an organic whole, constituted the battery module. Electric core in the battery module is established ties or is discharged outward jointly after parallelly connected again, in above-mentioned structure, often uses the electrically connected piece in order to realize between the adjacent electric core, battery module and connecting the electrically conductive connection between the pencil.
At present, among the battery module, the electric connection piece of connection between two electric cores is including the connecting portion that are located the rectangular shape main part both ends of electric connection piece, and connecting portion pass through the welding and link to each other with electric core, like the electric connection piece that the patent document publication of grant publication No. CN207572446U has seted up the counter sink on the connecting portion as welded part, and the one side that deviates from the counter sink welds with the utmost point post of electric core. The electrical connection sheet further includes a non-welded portion between the welded portions. Current electric connection piece self heat-sinking capability is not enough, and at the in-process that battery module used, the too high metal ion that can make in the electric connection piece of temperature rise of electric connection piece on the one hand is more active, forms stronger resistance to the flow of electron, and on the other hand, the too high battery management system that can lead to among the battery module of electric connection piece reduces charge-discharge power, can cut off the power even and lead to the vehicle to stop.
In order to solve the above-mentioned temperature rise problem of the electrical connection sheet, patent documents with an authorization publication number of CN207097934U and an authorization publication date of 2018.03.13 disclose an electrode connection sheet and a battery module, the electrode connection sheet has a heat dissipation hole and a first surface and a second surface opposite to each other along the thickness direction thereof, and the heat dissipation hole arranged on the electrode connection sheet penetrates through the electrode connection sheet along the thickness direction of the electrode connection sheet; and the area of the side wall surface of the heat dissipation hole is larger than the sum of the areas of the first surface and the second surface where the heat dissipation hole is located, so that the heat dissipation capacity of the heat dissipation hole is ensured.
The louvre runs through the setting along width direction, has linked together the gas of first surface with the second surface place side, makes gas carry out heat exchange work through the louvre, and at the in-process that gas flows, partly heat can be taken away to gas, and then accelerates electrode connection piece's radiating rate, but the problem that wherein exists is: because the heat dissipation holes in the electrode connecting sheet are arranged in a penetrating manner along the thickness direction, one side surface of the electrode connecting sheet is tightly attached to the battery monomer, one end of the battery monomer, which is close to the heat dissipation holes, is opened, the area of the battery monomer, which is close to one side of the electrode connecting sheet, is larger than that of the heat dissipation holes, and the corresponding structure of the battery monomer can generate a blocking effect on airflow entering or flowing out of the heat dissipation holes, so that the flowing of the gas is influenced, and the heat dissipation efficiency of the heat dissipation holes and the electrode connecting; in addition, when these heat dissipation holes are machined, the number of heat dissipation holes is large, and the machining process is complicated.
Disclosure of Invention
The present invention is directed to an electrical connection sheet, which can solve the problem of the prior art that the heat dissipation effect of the electrical connection sheet is not ideal, and a battery module using the same, which can ensure the heat dissipation effect and the operation stability of the battery module.
In order to achieve the purpose, the battery module adopts the following technical scheme:
the battery module, including electric core and the electric connection piece of connection between different utmost point posts, the electric connection piece is folded by the lamellar body more than two and is established the formation, and at least a slice lamellar body possesses following characteristic: at least one side face of the sheet body is provided with a concave-convex structure used for increasing the heat dissipation area of the side face, and the side face is the side face adjacent to other sheet bodies.
The beneficial effects are that: adopt the lamellar body more than two to fold to establish and form the electricity connection piece, be equipped with concave-convex structure on the lamellar body wherein, concave-convex structure corresponds with adjacent lamellar body and has formed the passageway that the gas flows, heat radiating area has both been increased, can improve the efficiency of gas circulation again, and, the extending direction of the passageway that concave-convex structure formed is on a parallel with the adjacent side between the lamellar body, it is perpendicular with the thickness direction of electricity connection piece, in this direction, there is not the structure that influences gas flow, thereby guarantee that concave-convex structure can form the passageway that complete gas supply flows, the radiating effect of electricity connection piece has been improved, the temperature rise of electricity connection piece has been controlled effectively, make battery module more stable at the during operation.
Furthermore, the side face is provided with protrusions facing other sheet bodies, and the concave-convex structure is formed by the protrusions and the depressions formed by the adjacent protrusions.
The beneficial effects are that: the side face is provided with the protrusions, and the protrusions and the recesses formed at intervals between the adjacent protrusions form an undulating concave-convex structure after machining is completed, so that machining is simple, and realization is facilitated.
Furthermore, the protrusions on the two adjacent sheet bodies are correspondingly arranged so that the recesses on the two adjacent sheet bodies are involuted to form a heat dissipation channel for air circulation.
The beneficial effects are that: the two sunken parts are combined to form the heat dissipation channel, the heat dissipation channel mainly plays a role in increasing the heat dissipation area of the electric connection sheet, the precision requirement is not so high, the heat dissipation channel is formed by combining the sunken parts, the processing method is multiple, the process is simple, and the realization is convenient.
Furthermore, the heat dissipation channel extends along the length direction perpendicular to the electrical connection sheet and penetrates through two sides of the width direction of the electrical connection sheet.
The beneficial effects are that: the heat dissipation channel is arranged along the length direction perpendicular to the electric connection sheet and penetrates through the two sides of the width direction of the electric connection sheet, so that the heat dissipation channel cannot influence the rotation of the electric connection sheet taking the width direction as an axis.
Furthermore, the electric connection sheet is formed by folding a plate, the concave-convex structure is arranged on the side faces, close to each other, of the two folded parts of the plate, and the two folded parts of the plate correspondingly form two sheet bodies which are folded.
The beneficial effects are that: through set up concave-convex structure on panel, the panel is buckled and the depressed part that makes in the concave-convex structure is involuted and is formed heat dissipation channel, and the electric connection piece rigidity that forms after buckling is high to the crease of buckling can be connected two parts of panel, has reduced other manufacturing procedure.
In order to achieve the purpose, the electric connection sheet adopts the following technical scheme:
an electrical connection sheet formed by stacking two or more sheet bodies, at least one sheet body having the following features: at least one side face of the sheet body is provided with a concave-convex structure used for increasing the heat dissipation area of the side face, and the side face is the side face adjacent to other sheet bodies.
The beneficial effects are that: adopt the lamellar body more than two to fold to establish and form the electricity connection piece, be equipped with concave-convex structure on the lamellar body wherein, concave-convex structure corresponds with adjacent lamellar body and has formed the passageway that the gas flows, heat radiating area has both been increased, can improve the efficiency of gas circulation again, and, the extending direction of the passageway that concave-convex structure formed is on a parallel with the adjacent side between the lamellar body, it is perpendicular with the thickness direction of electricity connection piece, in this direction, there is not the structure that influences gas flow, thereby guarantee that concave-convex structure can form the passageway that complete gas supply flows, the radiating effect of electricity connection piece has been improved, the temperature rise of electricity connection piece has been controlled effectively.
Furthermore, the side face is provided with protrusions facing other sheet bodies, and the concave-convex structure is formed by the protrusions and the depressions formed by the adjacent protrusions.
The beneficial effects are that: the side face is provided with the protrusions, and the protrusions and the recesses formed at intervals between the adjacent protrusions form an undulating concave-convex structure after machining is completed, so that machining is simple, and realization is facilitated.
Furthermore, the protrusions on the two adjacent sheet bodies are correspondingly arranged so that the recesses on the two adjacent sheet bodies are involuted to form a heat dissipation channel for air circulation.
The beneficial effects are that: the two sunken parts are combined to form the heat dissipation channel, the heat dissipation channel mainly plays a role in increasing the heat dissipation area of the electric connection sheet, the precision requirement is not so high, the heat dissipation channel is formed by combining the sunken parts, the processing method is multiple, the process is simple, and the realization is convenient.
Furthermore, the heat dissipation channel extends along the length direction perpendicular to the electrical connection sheet and penetrates through two sides of the width direction of the electrical connection sheet.
The beneficial effects are that: the heat dissipation channel is arranged along the length direction perpendicular to the electric connection sheet and penetrates through the two sides of the width direction of the electric connection sheet, so that the heat dissipation channel cannot influence the rotation of the electric connection sheet taking the width direction as an axis.
Furthermore, the electric connection sheet is formed by folding a plate, the concave-convex structure is arranged on the side faces, close to each other, of the two folded parts of the plate, and the two folded parts of the plate correspondingly form two sheet bodies which are folded.
The beneficial effects are that: through set up concave-convex structure on panel, the panel is buckled and the depressed part that makes in the concave-convex structure is involuted and is formed heat dissipation channel, and the electric connection piece rigidity that forms after buckling is high to the crease of buckling can be connected two parts of panel, has reduced other manufacturing procedure.
Drawings
Fig. 1 is a schematic structural view of a battery module in accordance with an embodiment 1 of the present invention;
fig. 2 is a schematic structural view of an electrical connection sheet in embodiment 1 of the battery module of the present invention;
fig. 3 is a side view of an electrical connection sheet in embodiment 1 of the battery module according to the present invention;
fig. 4 is a side view of an electrical connection sheet in embodiment 2 of the battery module according to the present invention;
fig. 5 is a side view of an electrical connection sheet in embodiment 3 of the battery module according to the present invention.
In the figure: 1. an electric core; 2. an electrically connecting sheet; 21. a heat dissipation channel; 22. aligning holes; 23. avoiding holes; 24. a bending section; 3. a baffle plate; 4. a right side plate; 41. a right recess; 5. a left side plate; 51. a left recess; 61. an upper sheet body; 62. a middle layer sheet body; 63. a lower sheet body; 64. a groove; 71. an upper sheet body; 72. a middle layer sheet body; 73. a lower sheet body; 74. and (4) a groove.
Detailed Description
An embodiment of the battery module according to the present invention will now be described with reference to the accompanying drawings.
The structure of the battery module of the embodiment 1 of the present invention is shown in fig. 1 to 3: in fig. 1, the battery module includes that the electric core 1 that sets up, as the battery monomer is arranged in proper order, is provided with the electric connection piece 2 that realizes switching on two adjacent electric cores between electric core 1, forms holistic battery module's both sides through electric connection piece 2, still is provided with the baffle 3 that is used for fixed electric core. The electrical connection sheet of the present invention is formed by stacking two or more sheet bodies, and at least one of the sheet bodies constituting the electrical connection sheet has the following characteristics: at least one side face of the sheet body is provided with a concave-convex structure used for increasing the heat dissipation area of the side face, and the side face is the side face of the sheet body adjacent to other sheet bodies.
As shown in fig. 2, the main body of the electrical connection sheet 2 is strip-shaped, the length direction of the electrical connection sheet 2 is defined as the front-back direction, the width direction of the electrical connection sheet 2 is the left-right direction, both ends around the electrical connection sheet 2 are provided with a connection portion for being connected with the battery cell 1, the body of the connection portion is a part of the electrical connection sheet 2, a registration hole 22 for being aligned with the pole of the battery cell 1 is provided on the lower surface of the connection portion, when the connection portion is electrically connected with the battery cell 1 in a matching manner, the registration structure on the pole of the battery cell 1 enters the registration hole 22, the lower surface of the connection portion and the pole of the battery cell 1 form a connection structure through laser welding, and therefore conduction between the battery cell 1. And be provided with the hole of dodging 23 of intercommunication counterpoint hole 22 on the upper surface of connecting portion, and dodge the radial dimension in hole 23 and will be far more than counterpoint hole 22, can make the penetrating electric connection piece 2's of laser thickness diminish when carrying out laser welding, directly shine on the face of counterpoint hole 22 place, reduce the requirement to welding equipment, reduce production and processing cost.
Between the connecting portions at both ends of the electrical connection sheet 2, a heat dissipation passage 21 is provided between the upper surface and the lower surface of the electrical connection sheet 2 in a direction perpendicular to the thickness direction of the electrical connection sheet 2. The heat dissipation channel 21 extends along the direction perpendicular to the thickness of the electrical connection sheet 2 and along the left-right direction, and the heat dissipation channel 21 penetrates through the left end and the right end of the electrical connection sheet, so that the heat dissipation area between the electrical connection sheet 2 and the air can be increased, and the heat dissipation capacity of the electrical connection sheet 2 can be improved, and because the arrangement direction of the heat dissipation channel 21 is perpendicular to the thickness of the electrical connection sheet 2, when the electrical connection sheet 2 is matched with the battery cell 1, the opening of the heat dissipation channel 21 is located on the side surface of the electrical connection sheet 2, and the structure influencing the gas circulation is not arranged at the position, so that the heat dissipation effect of the heat.
As shown in fig. 3, the body of the electrical connection sheet 2 is a flat plate, and includes a right side plate 4 forming the upper surface of the electrical connection sheet 2 and a left side plate 5 forming the lower surface of the electrical connection sheet 2, and the left side plate 5 and the right side plate 4 also correspond to form a sheet body forming the electrical connection sheet by stacking. After the left side plate 5 and the right side plate 4 are closed, the concave-convex structures respectively arranged on the left side plate 5 and the right side plate 4 and close to the side surfaces of the left side plate and the right side plate are closed to form a heat dissipation channel 21, protrusions extending along the width direction of the electric connecting sheet 2 are arranged on the side surface of the electric connecting sheet 2 at intervals, the protrusions are provided with convex ribs which are simple in structure and convenient to process in the embodiment, and concave parts are formed at intervals between the adjacent convex ribs. The one end opening that heat dissipation channel 21 kept away from the crease of electricity connection piece 2 supplies gas to get into or flow out heat dissipation channel 21, and the one end that is close to the crease of electricity connection piece 2 of heat dissipation channel 21 is the opening (need cut off the middle part of protruding muscle), makes heat dissipation channel 21 wholly be the through-hole, or the one end that is close to the crease of electricity connection piece 2 of heat dissipation channel 21 is enclosed construction, makes heat dissipation channel 21 wholly be the blind hole.
Be provided with counterpoint hole 22 on the left panel 5 of electricity connecting sheet 2, and seted up on the right side board 4 of electricity connecting sheet 2 and dodged hole 23, inwards buckle electricity connecting sheet 2 again, when making left side board 5 and right side board 4 be close to each other, protruding muscle on the left side board 5 and the protruding muscle contact on the right side board 4, left sunken 51 on the left side board 5 and the right sunken 41 on the right side board 4 are involutive to have formed heat dissipation channel 21, and right side board 4 has turned over the top of left side board 5, make and dodge hole 23 to the top of counterpoint hole 22. Finally, the middle part of the electric connection sheet 2 is punched to form a bent part 24 protruding downwards, and the bent part 24 can enable the left part and the right part of the electric connection sheet 2 to swing during assembly, so that the two connection parts of the electric connection sheet 2 are better attached to the pole of the battery cell 1.
As shown in fig. 4, embodiment 2 of the battery module according to the present invention: the difference from the above embodiment is that the electrical connection sheet in this embodiment is formed by stacking three sheets, and the sheets are fixed to each other by screwing, welding, or bonding. Grooves 64 serving as concave-convex structures are respectively formed in adjacent side faces among the upper layer sheet body 61, the middle layer sheet body 62 and the lower layer sheet body 63, and the grooves 64 in the upper layer sheet body 61, the middle layer sheet body 62 and the lower layer sheet body 63 are correspondingly formed, so that the grooves 64 are combined to form a heat dissipation channel.
As shown in fig. 5, embodiment 3 of the battery module according to the present invention: the difference from the above embodiment is that the electrical connection sheet in this embodiment is formed by stacking three sheets, and the sheets are fixed to each other by screwing, welding, or bonding. Grooves 74 serving as concave-convex structures are respectively formed in adjacent side faces among the upper-layer sheet body 71, the middle-layer sheet body 72 and the lower-layer sheet body 73, but the grooves 74 on the upper-layer sheet body 71, the middle-layer sheet body 72 and the lower-layer sheet body 73 are arranged in a staggered mode, so that the cross section of the heat dissipation channel is in a shape formed by combining an arc-shaped section with a straight line section.
In other embodiments, in the sheet bodies stacked to form the electrical connection sheet, only one sheet body may be provided with the concave-convex structure for increasing the heat dissipation area of the side surface, and the side surfaces of the sheet body corresponding to other adjacent sheet bodies are provided with the concave-convex structure, and the side surfaces may be the upper side surface and the lower side surface of the sheet body, or the upper side surface or the lower side surface of the sheet body.
In other embodiments, the heat dissipation channel may also be disposed in the electrical connection sheet along an oblique direction.
In other embodiments, the concave-convex structure can also be formed by directly opening grooves instead of arranging the protrusions, and the concave-convex structure is formed by relying on the intervals among the protrusions.
The structure and formation process of the electrical connection sheet of the present invention are the same as those of the electrical connection sheet in the above-described embodiment of the battery module, and thus a detailed description of the electrical connection sheet will not be given.
The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The battery module, including electric core and the electric connection piece of connection between different utmost point posts, its characterized in that: the electric connecting sheet is formed by stacking more than two sheet bodies, and at least one sheet body has the following characteristics: at least one side face of the sheet body is provided with a concave-convex structure used for increasing the heat dissipation area of the side face, and the side face is the side face adjacent to other sheet bodies.
2. The battery module according to claim 1, wherein: the side face is provided with protrusions facing other sheet bodies, and the concave-convex structure is formed by the protrusions and the depressions formed by the adjacent protrusions.
3. The battery module according to claim 2, wherein: the bulges on the two adjacent sheet bodies are correspondingly arranged so that the depressions on the two adjacent sheet bodies are involuted to form a heat dissipation channel for air circulation.
4. The battery module according to claim 3, wherein: the heat dissipation channel extends along the length direction perpendicular to the electric connection sheet and penetrates through two sides of the width direction of the electric connection sheet.
5. The battery module according to any one of claims 1 to 4, wherein: the electric connection sheet is formed by folding a plate, the concave-convex structure is arranged on the side faces, close to each other, of the two folded parts of the plate, and the two folded parts of the plate correspondingly form two sheet bodies which are folded.
6. An electrical connection sheet characterized by: the electric connecting sheet is formed by stacking more than two sheet bodies, and at least one sheet body has the following characteristics: at least one side face of the sheet body is provided with a concave-convex structure used for increasing the heat dissipation area of the side face, and the side face is the side face adjacent to other sheet bodies.
7. An electrical connection sheet according to claim 6, wherein: the side face is provided with protrusions facing other sheet bodies, and the concave-convex structure is formed by the protrusions and the depressions formed by the adjacent protrusions.
8. An electrical connection sheet according to claim 7, wherein: the bulges on the two adjacent sheet bodies are correspondingly arranged so that the depressions on the two adjacent sheet bodies are involuted to form a heat dissipation channel for air circulation.
9. An electrical connection sheet according to claim 8, wherein: the heat dissipation channel extends along the length direction perpendicular to the electric connection sheet and penetrates through two sides of the width direction of the electric connection sheet.
10. An electrical connection sheet according to any one of claims 6 to 9, wherein: the electric connection sheet is formed by folding a plate, the concave-convex structure is arranged on the side faces, close to each other, of the two folded parts of the plate, and the two folded parts of the plate correspondingly form two sheet bodies which are folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160999.0A CN110970592A (en) | 2018-09-30 | 2018-09-30 | Electric connection sheet and battery module using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160999.0A CN110970592A (en) | 2018-09-30 | 2018-09-30 | Electric connection sheet and battery module using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110970592A true CN110970592A (en) | 2020-04-07 |
Family
ID=70029133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811160999.0A Pending CN110970592A (en) | 2018-09-30 | 2018-09-30 | Electric connection sheet and battery module using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110970592A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259897A (en) * | 2020-10-20 | 2021-01-22 | 合肥国轩高科动力能源有限公司 | Lithium ion battery |
| CN114552106A (en) * | 2020-11-25 | 2022-05-27 | 丰田自动车株式会社 | Electricity storage device |
| CN114649616A (en) * | 2020-12-17 | 2022-06-21 | 比亚迪股份有限公司 | Power battery and folding connecting piece for power battery |
| CN116581429A (en) * | 2023-07-12 | 2023-08-11 | 深圳海辰储能控制技术有限公司 | Energy storage module and electric equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW577580U (en) * | 2002-08-01 | 2004-02-21 | You-An Shie | Heat dissipation device for stacked computer |
| CN202259498U (en) * | 2011-09-29 | 2012-05-30 | 惠州市汉派电池科技有限公司 | Novel lithium battery structure |
| CN205208497U (en) * | 2015-06-29 | 2016-05-04 | 王树洪 | LED car headlight's honeycomb radiator |
| CN206834243U (en) * | 2017-06-30 | 2018-01-02 | 宁德时代新能源科技股份有限公司 | Electrode connecting piece and battery modules |
| CN206834245U (en) * | 2017-06-30 | 2018-01-02 | 宁德时代新能源科技股份有限公司 | Electrode connecting piece and battery modules |
| CN209071487U (en) * | 2018-09-30 | 2019-07-05 | 郑州深澜动力科技有限公司 | A kind of electric connecting sheet and the battery modules using the electric connecting sheet |
-
2018
- 2018-09-30 CN CN201811160999.0A patent/CN110970592A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW577580U (en) * | 2002-08-01 | 2004-02-21 | You-An Shie | Heat dissipation device for stacked computer |
| CN202259498U (en) * | 2011-09-29 | 2012-05-30 | 惠州市汉派电池科技有限公司 | Novel lithium battery structure |
| CN205208497U (en) * | 2015-06-29 | 2016-05-04 | 王树洪 | LED car headlight's honeycomb radiator |
| CN206834243U (en) * | 2017-06-30 | 2018-01-02 | 宁德时代新能源科技股份有限公司 | Electrode connecting piece and battery modules |
| CN206834245U (en) * | 2017-06-30 | 2018-01-02 | 宁德时代新能源科技股份有限公司 | Electrode connecting piece and battery modules |
| CN209071487U (en) * | 2018-09-30 | 2019-07-05 | 郑州深澜动力科技有限公司 | A kind of electric connecting sheet and the battery modules using the electric connecting sheet |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259897A (en) * | 2020-10-20 | 2021-01-22 | 合肥国轩高科动力能源有限公司 | Lithium ion battery |
| CN112259897B (en) * | 2020-10-20 | 2022-05-20 | 合肥国轩高科动力能源有限公司 | Lithium ion battery |
| CN114552106A (en) * | 2020-11-25 | 2022-05-27 | 丰田自动车株式会社 | Electricity storage device |
| CN114552106B (en) * | 2020-11-25 | 2024-03-08 | 丰田自动车株式会社 | Power storage device |
| CN114649616A (en) * | 2020-12-17 | 2022-06-21 | 比亚迪股份有限公司 | Power battery and folding connecting piece for power battery |
| CN116581429A (en) * | 2023-07-12 | 2023-08-11 | 深圳海辰储能控制技术有限公司 | Energy storage module and electric equipment |
| CN116581429B (en) * | 2023-07-12 | 2023-10-13 | 深圳海辰储能控制技术有限公司 | Energy storage module and electric equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110970592A (en) | Electric connection sheet and battery module using same | |
| US10532423B2 (en) | Battery pack and method for manufacturing the same | |
| JP6199369B2 (en) | Battery module | |
| JP6286679B2 (en) | Battery block | |
| CA2527614A1 (en) | Fuel cell stack including dummy cell | |
| US9484607B2 (en) | Battery module | |
| KR102427427B1 (en) | Battery, battery pack having same and electric vehicle | |
| CN106104846A (en) | Battery block and battery component | |
| JP2011071053A (en) | Flat square battery and battery pack | |
| WO2018143464A1 (en) | Battery module and method for producing battery module | |
| CN209071487U (en) | A kind of electric connecting sheet and the battery modules using the electric connecting sheet | |
| JP6911749B2 (en) | Power storage device | |
| JP2008226519A (en) | Battery pack | |
| JP6136001B2 (en) | Power storage module | |
| US20160226116A1 (en) | Battery pack | |
| CN207097934U (en) | Electrode connecting piece and battery modules | |
| KR100658677B1 (en) | Secondary battery module and wall of secondary battery module | |
| JP6128430B2 (en) | Power storage module | |
| KR102122926B1 (en) | Battery Sub-Pack and a Method for manufacturing the same | |
| JP7055613B2 (en) | Batteries assembled | |
| CN110970593A (en) | Battery module and electric connection sheet thereof | |
| JP2009134937A (en) | Battery system | |
| KR20080028583A (en) | Core structure for a square lithium secondary battery | |
| CN209071486U (en) | A kind of battery modules and its electric connecting sheet | |
| JP7486273B2 (en) | Battery Module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |