CN211700403U - Square lithium battery module and battery pack using same - Google Patents
Square lithium battery module and battery pack using same Download PDFInfo
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- CN211700403U CN211700403U CN202020826380.5U CN202020826380U CN211700403U CN 211700403 U CN211700403 U CN 211700403U CN 202020826380 U CN202020826380 U CN 202020826380U CN 211700403 U CN211700403 U CN 211700403U
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a square lithium battery module and use battery package of this module, a square lithium battery module, it includes square battery, bonding glue, fixed end plate, fixed medium plate, curb plate, Busbar subassembly, upper cover, square battery includes positive pole, negative pole, positive pole insulating plastic, negative pole insulating plastic, positive pole and negative pole are in the same one side of square battery, the left and right sides of positive pole insulating plastic is provided with the first fixed buckle that is used for fixed Busbar subassembly, the left and right sides of negative pole insulating plastic is provided with the second fixed buckle that is used for fixed Busbar subassembly; the battery pack using the module comprises a square lithium battery module and a battery box, wherein the square lithium battery module is fixed in the battery box through a fixed end plate and a fixed middle plate; the utility model has the advantages of project suitability is high, efficient in groups, the assembly is simple, with low costs, the heat conduction is effectual.
Description
Technical Field
The utility model relates to a square lithium cell module's technical field of structure, concretely relates to square lithium cell module and use battery package of this module.
Background
The lithium ion battery has the advantages of light weight, large energy storage, large power, no pollution, long service life, small self-discharge coefficient, wide temperature application range and the like, is gradually favored by people, and gradually replaces other traditional batteries in the field of energy storage and power batteries.
With the rapid development of the lithium battery industry, the cost of the battery becomes a key factor of the development of the battery industry more and more, as the size of a module is smaller, dozens of modules need to be arranged in one battery pack to meet the electric quantity demand of the battery pack, each VDA module is provided with an independent protection and fixing structure, the cost is higher, meanwhile, the valuable space in the battery pack is occupied, and the space utilization rate of the battery pack is lower; different projects have different series and parallel requirements, for a VDA module, if various voltage and electric quantity requirements are met, a Busbar structure needs to be developed respectively, various requirements cannot be met through one Busbar structure, and development and die cost is increased; the traditional VDA module, particularly the VDA module of a soft package battery, has a complex structure and relatively high cost; for square lithium battery module, laminate polymer battery's VDA module heat conduction effect is not good, is unfavorable for the heat management.
Disclosure of Invention
An object of the utility model is to solve above-mentioned problem, provide a square lithium cell module and use battery package of this module that the project suitability is high, efficient in groups, the assembly is simple, with low costs, the heat conduction effect is good.
The purpose of the utility model is realized like this: the utility model provides a square lithium battery module, it includes square battery, bonding glue, fixed end plate, fixed medium plate, curb plate, Busbar subassembly, upper cover, square battery include anodal, negative pole, anodal insulating plastic, negative pole insulating plastic, anodal with the negative pole is in same one side of square battery, the left and right sides of anodal insulating plastic is provided with and is used for fixing the first fixed buckle of Busbar subassembly, the left and right sides of negative pole insulating plastic is provided with and is used for fixing the fixed buckle of second of Busbar subassembly.
The square batteries are connected together through the adhesive according to the series-parallel connection rule, and the adhesive can be double-sided adhesive or glue.
The utility model discloses a lithium battery module, including fixed end plate, curb plate, square lithium battery module, fixed middle plate, first fixed orifices, the structure of curb plate is the U type, the both ends of curb plate are provided with the region of stretching out, the middle part of square lithium battery module is placed at the both ends along electric core thickness direction to fixed end plate, the curb plate place at the both ends along electric core width direction, fixed middle plate place the centre at square lithium battery module, be provided with first fixed orifices on the fixed end plate, the structure of curb plate is the U type, the both ends of curb plate are provided with the hem of U type structure, the centre of curb plate is provided with the second fixed orifices with fixed middle plate bolted connection, be provided with on the fixed middle.
The extension area of the side plate is connected with the fixed end plate through laser welding, the side plate is tightly pressed on the fixed middle plate and is connected with the fixed middle plate through laser welding, and two ends of the upper part of the fixed middle plate are connected with the side plate through bolts in a reinforcing mode.
The Busbar subassembly constitute by insulating support and Busbar, insulating support comprises insulating material, the inside of insulating support is inlayed and is had the nut that is used for gathering the pencil and connects, insulating support is provided with and is used for the fixed arch of pencil protruding, the fretwork hole edge of insulating support is provided with fixed recess, be provided with the fixed buckle of third on the insulating support, the side of insulating support is provided with fixed boss.
The insulating support is clamped on the first fixing buckles on the two sides of the anode insulating plastic and the second fixing buckles on the two sides of the cathode insulating plastic through the fixing grooves respectively, and the Busbar assembly is fixed on the square battery.
The busbar pass through the fixed buckle of third on the insulating support and fix on the insulating support to couple together busbar and electric core utmost point ear through laser welding, realize the series connection or the parallelly connected of electric core.
The upper cover is fixed on the fixing boss of the insulating support through the clamping groove, and the square lithium battery module is insulated from the outside.
The utility model provides a battery pack, it includes square lithium battery module and battery box, square lithium battery module include square battery, bonding glue, fixed end plate, fixed medium plate, curb plate, Busbar subassembly, upper cover, square battery include anodal, negative pole, anodal insulating plastic, the insulating plastic of negative pole, anodal with the negative pole is in same one side of square battery, the left and right sides of anodal insulating plastic is provided with and is used for fixing the first fixed buckle of Busbar subassembly, the left and right sides of the insulating plastic of negative pole is provided with and is used for fixing the fixed buckle of second of Busbar subassembly, square lithium battery module pass through fixed end plate and fixed medium plate fix in the battery box.
The utility model has the advantages that: the square lithium battery module of the utility model adopts a split type Busbar structure, the length of the module is convenient to adjust, and the modules with different lengths do not need to be redeveloped, so that the square lithium battery module is suitable for modules with various lengths; the utility model can be used for manufacturing large modules for different battery boxes, thus improving the space utilization rate in the battery pack and the energy density conversion rate of the modules; the utility model has simple structure, convenient operation and low cost; the square battery of the utility model can directly conduct heat through the bottom, and has good heat management effect; the utility model has the advantages of project suitability is high, efficient in groups, the assembly is simple, with low costs, the heat conduction is effectual.
Drawings
Fig. 1 is a schematic diagram of a square battery structure of the square lithium battery module of the present invention.
Fig. 2 is a schematic diagram illustrating the square battery of the square lithium battery module of the present invention stacked and bonded.
Fig. 3 is a schematic view illustrating the assembly of the structure of the square lithium battery module of the present invention.
Fig. 4 shows the structure welding schematic diagram of the square lithium battery module of the present invention.
Fig. 5 is a schematic view of the insulating support structure of the square lithium battery module of the present invention.
Fig. 6 is a schematic view of the assembly of the insulating support of the square lithium battery module of the present invention.
Fig. 7 shows that the bus bar of the square lithium battery module of the present invention is assembled and welded schematically.
Fig. 8 is a schematic view illustrating the assembly of the upper cover of the square lithium battery module of the present invention.
Fig. 9 is a schematic view illustrating the assembly of the battery pack using the module according to the present invention.
In the figure: 1. 1-1 part of square battery, 1-2 parts of positive electrode, 1-3 parts of positive electrode insulating plastic, 1-4 parts of first fixing buckle, 1-5 parts of negative electrode, 1-6 parts of negative electrode insulating plastic, 2 parts of second fixing buckle, 3-1 parts of adhesive, 3-2 parts of fixing end plate, 3-3 parts of side plate, 3-4 parts of fixing middle plate, 3-5 parts of first fixing hole, 3-6 parts of extending area, 3-7 parts of folded edge, 3-8 parts of second fixing hole, 3-9 parts of third fixing hole, 4-1 parts of fourth fixing hole, 4-2 parts of laser welding, 5 parts of bolt connection, 5-1 parts of insulating support, 5-2 parts of insulating material, 5-3 parts of nut, 5-4 parts of arched bulge, 5-5 parts of fixing groove, 5-5 parts, The battery comprises, by weight, 5-6 parts of a third fixing buckle, 6 parts of a fixing boss, 7-1 parts of a Busbar assembly, 7-2 parts of laser welding, 7-3 parts of a Busbar, 8 parts of a battery core tab, 8-1 parts of a square lithium battery module, 8-2 parts of an upper cover, a clamping groove 9 and a battery box.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
The square lithium battery module 8 comprises a square battery 1, adhesive 2, a fixed end plate 3-1, a fixed middle plate 3-3, a side plate 3-2, a Busbar component 6 and an upper cover 8-1, wherein the square battery 1 comprises an anode 1-1, a cathode 1-4, anode insulating plastic 1-2 and cathode insulating plastic 1-5, the anode 1-1 and the cathode 1-4 are arranged on the same side of the square battery 1, first fixing buckles 1-3 for fixing the Busbar component 6 are arranged on the left side and the right side of the anode insulating plastic 1-2, and second fixing buckles 1-6 for fixing the Busbar component 6 are arranged on the left side and the right side of the cathode insulating plastic 1-5.
The square batteries 1 are bonded together through the bonding glue 2 according to the series-parallel connection rule, and the bonding glue 2 can be double-sided glue or glue.
The fixed end plates 3-1 are arranged at two ends along the thickness direction of the battery cell, the side plates 3-2 are arranged at two ends along the width direction of the battery cell, the fixed middle plate 3-3 is arranged in the middle of the square lithium battery module 8, the fixed end plate 3-1 is provided with a first fixed hole 3-4, the side plate 3-2 is U-shaped, two ends of the side plate 3-2 are provided with extending areas 3-5, the upper part and the lower part of the side plate 3-2 are provided with folded edges 3-6 with U-shaped structures, the middle of the side plate 3-2 is provided with a second fixing hole 3-7 which is connected with the fixing middle plate 3-3 through a bolt 4-2, the fixed middle plate 3-3 is provided with a third fixing hole 3-8 fixed with the square lithium battery module 8 and a fourth fixing hole 3-9 fixed with the side plate 3-2.
The extending area 3-5 of the side plate 3-2 is connected with the fixed end plate 3-1 through laser welding 4-1, the side plate 3-2 is tightly pressed on the fixed middle plate 3-3 and is connected together through the laser welding 4-1, and two ends of the upper part of the fixed middle plate 3-3 are connected with the side plate 3-2 through bolt connection 4-2 in a reinforcing mode.
The bus bar assembly 6 is composed of an insulating support 5 and a bus bar 7-2, the insulating support 5 is composed of insulating materials 5-1, nuts 5-2 used for collecting wiring harness connection are embedded in the insulating support 5, the insulating support 5 is provided with arch-shaped protrusions 5-3 used for fixing wiring harnesses, fixing grooves 5-4 are formed in the edge of a hollow inner hole of the insulating support 5, third fixing buckles 3-8 are arranged on the insulating support 5, and fixing bosses 5-6 are arranged on the side edges of the insulating support 5.
The insulating support 5 is clamped on the first fixing buckles 1-3 on two sides of the positive insulating plastic 1-2 and the second fixing buckles 1-6 on two sides of the negative insulating plastic 1-5 through the fixing grooves 5-4 respectively, and the Busbar assembly 6 is fixed on the square battery 1.
The bus bar 7-2 is fixed on the insulating support 5 through a third fixing buckle 5-5 on the insulating support 5, and the bus bar 7-2 is connected with a battery cell tab 7-3 through laser welding 7-1, so that series connection or parallel connection of battery cells is realized.
The upper cover 8-1 is fixed on the fixing boss 5-6 of the insulating support 5 through the clamping groove 8-2, and external insulation of the square lithium battery module 8 is achieved.
The square lithium battery module of the embodiment adopts a split type Busbar structure, the length of the module is convenient to adjust, the modules with different lengths do not need to be developed again, and the square lithium battery module is suitable for modules with various lengths; the utility model can be used for manufacturing large modules for different battery boxes, thus improving the space utilization rate in the battery pack and the energy density conversion rate of the modules; the utility model has simple structure, convenient operation and low cost; the square battery of the utility model can directly conduct heat through the bottom, and has good heat management effect; the utility model has the advantages of project suitability is high, efficient in groups, the assembly is simple, with low costs, the heat conduction is effectual.
Example 2
The battery pack as shown in fig. 1-9 comprises a square lithium battery module 8 and a battery box 9, wherein the square lithium battery module 8 comprises a square battery 1, an adhesive 2, a fixed end plate 3-1, a fixed middle plate 3-3, a side plate 3-2, a Busbar component 6 and an upper cover 8-1, the square battery 1 comprises an anode 1-1, a cathode 1-4, an anode insulating plastic 1-2 and a cathode insulating plastic 1-5, the anode 1-1 and the cathode 1-4 are arranged on the same side of the square battery 1, first fixing buckles 1-3 for fixing the Busbar component 6 are arranged on the left side and the right side of the anode insulating plastic 1-2, second fixing buckles 1-6 for fixing the Busbar component 6 are arranged on the left side and the right side of the cathode insulating plastic 1-5, the square lithium battery module 8 is fixed in the battery box 9 through the fixed end plate 3-1 and the fixed middle plate 3-3.
The square batteries 1 are bonded together through the bonding glue 2 according to the series-parallel connection rule, and the bonding glue 2 can be double-sided glue or glue.
The fixed end plates 3-1 are arranged at two ends along the thickness direction of the battery cell, the side plates 3-2 are arranged at two ends along the width direction of the battery cell, the fixed middle plate 3-3 is arranged in the middle of the square lithium battery module 8, the fixed end plate 3-1 is provided with a first fixed hole 3-4, the side plate 3-2 is U-shaped, two ends of the side plate 3-2 are provided with extending areas 3-5, the upper part and the lower part of the side plate 3-2 are provided with folded edges 3-6 with U-shaped structures, the middle of the side plate 3-2 is provided with a second fixing hole 3-7 which is connected with the fixing middle plate 3-3 through a bolt 4-2, the fixed middle plate 3-3 is provided with a third fixing hole 3-8 fixed with the square lithium battery module 8 and a fourth fixing hole 3-9 fixed with the side plate 3-2.
The extending area 3-5 of the side plate 3-2 is connected with the fixed end plate 3-1 through laser welding 4-1, the side plate 3-2 is tightly pressed on the fixed middle plate 3-3 and is connected together through the laser welding 4-1, and two ends of the upper part of the fixed middle plate 3-3 are connected with the side plate 3-2 through bolt connection 4-2 in a reinforcing mode.
The bus bar assembly 6 is composed of an insulating support 5 and a bus bar 7-2, the insulating support 5 is composed of insulating materials 5-1, nuts 5-2 used for collecting wiring harness connection are embedded in the insulating support 5, the insulating support 5 is provided with arch-shaped protrusions 5-3 used for fixing wiring harnesses, fixing grooves 5-4 are formed in the edge of a hollow inner hole of the insulating support 5, third fixing buckles 3-8 are arranged on the insulating support 5, and fixing bosses 5-6 are arranged on the side edges of the insulating support 5.
The insulating support 5 is clamped on the first fixing buckles 1-3 on two sides of the positive insulating plastic 1-2 and the second fixing buckles 1-6 on two sides of the negative insulating plastic 1-5 through the fixing grooves 5-4 respectively, and the Busbar assembly 6 is fixed on the square battery 1.
The bus bar 7-2 is fixed on the insulating support 5 through a third fixing buckle 5-5 on the insulating support 5, and the bus bar 7-2 is connected with a battery cell tab 7-3 through laser welding 7-1, so that series connection or parallel connection of battery cells is realized.
The upper cover 8-1 is fixed on the fixing boss 5-6 of the insulating support 5 through the clamping groove 8-2, and external insulation of the square lithium battery module 8 is achieved.
This embodiment is a square lithium battery module and uses battery package scheme of this module, and the concrete operation is: the square battery with a tab at one side is bonded together by double faced adhesive tape or glue according to a certain series-parallel connection rule, the two ends in the thickness direction of the battery cell are provided with fixed end plates, the two ends in the width direction of the battery cell are provided with side plates, the fixed end plates and the side plates are welded together by laser, if the length of the module is too long, one or a plurality of fixed middle plates can be arranged in the middle of the module, the fixed middle plates are connected with the side plates together by laser welding and bolt connection, used for fixing the middle position of the module, the Busbar component is fixed on a buckle on the cell insulating plastic through a fixing groove on the insulating support, the bus bar is connected to the positive pole and the negative pole through laser welding to realize series connection or parallel connection of the electric cores, the upper cover of the module is fixed on a fixed boss on the insulating support through a clamping groove to realize external insulation of the module, and the module is fixed in the battery box through a fixed end plate and a fixed middle plate; the square lithium battery module and the battery pack using the same provided by the embodiment have the advantages of high project applicability, high grouping efficiency, simplicity in assembly, low cost and good heat conduction effect.
Claims (9)
1. The utility model provides a square lithium battery module which characterized in that: it includes square battery, bonding glue, fixed end plate, fixed medium plate, curb plate, Busbar subassembly, upper cover, square battery include anodal, negative pole, anodal insulating plastic, the insulating plastic of negative pole, anodal with the negative pole is in same one side of square battery, the left and right sides of anodal insulating plastic is provided with and is used for fixing the first fixed buckle of Busbar subassembly, the left and right sides of the insulating plastic of negative pole is provided with and is used for fixing the fixed buckle of second of Busbar subassembly.
2. The square lithium battery module as claimed in claim 1, wherein: the square batteries are bonded together through the adhesive according to the series-parallel connection rule.
3. The square lithium battery module as claimed in claim 1, wherein: the utility model discloses a lithium battery module, including fixed end plate, curb plate, square lithium battery module, fixed middle plate, first fixed orifices, the structure of curb plate is the U type, the both ends of curb plate are provided with the region of stretching out, the middle part of square lithium battery module is placed at the both ends along electric core thickness direction to fixed end plate, the curb plate place at the both ends along electric core width direction, fixed middle plate place the centre at square lithium battery module, be provided with first fixed orifices on the fixed end plate, the structure of curb plate is the U type, the both ends of curb plate are provided with the hem of U type structure, the centre of curb plate is provided with the second fixed orifices with fixed middle plate bolted connection, be provided with on the fixed middle.
4. The square lithium battery module as claimed in claim 3, wherein: the extension area of the side plate is connected with the fixed end plate through laser welding, the side plate is tightly pressed on the fixed middle plate and is connected with the fixed middle plate through laser welding, and two ends of the upper part of the fixed middle plate are connected with the side plate through bolts in a reinforcing mode.
5. The square lithium battery module as claimed in claim 1, wherein: the Busbar subassembly constitute by insulating support and Busbar, insulating support comprises insulating material, the inside of insulating support is inlayed and is had the nut that is used for gathering the pencil and connects, insulating support is provided with and is used for the fixed arch of pencil protruding, the fretwork hole edge of insulating support is provided with fixed recess, be provided with the fixed buckle of third on the insulating support, the side of insulating support is provided with fixed boss.
6. The square lithium battery module as claimed in claim 5, wherein: the insulating support is clamped on the first fixing buckles on the two sides of the anode insulating plastic and the second fixing buckles on the two sides of the cathode insulating plastic through the fixing grooves respectively, and the Busbar assembly is fixed on the square battery.
7. The square lithium battery module as claimed in claim 5, wherein: the busbar pass through the fixed buckle of third on the insulating support and fix on the insulating support to couple together busbar and electric core utmost point ear through laser welding, realize the series connection or the parallelly connected of electric core.
8. The square lithium battery module as claimed in claim 1, wherein: the upper cover is fixed on the fixing boss of the insulating support through the clamping groove, and the square lithium battery module is insulated from the outside.
9. The utility model provides a battery pack, it includes square lithium cell module and battery box, its characterized in that: square lithium battery module include square battery, bonding glue, fixed end plate, fixed medium plate, curb plate, Busbar subassembly, upper cover, square battery include anodal, negative pole, anodal insulating plastic, the insulating plastic of negative pole, anodal with the negative pole is in same one side of square battery, the left and right sides of anodal insulating plastic is provided with and is used for fixing the first fixed buckle of Busbar subassembly, the left and right sides of the insulating plastic of negative pole is provided with and is used for fixing the fixed buckle of second of Busbar subassembly, square lithium battery module pass through fixed end plate and fixed medium plate fix in the battery box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020826380.5U CN211700403U (en) | 2020-05-18 | 2020-05-18 | Square lithium battery module and battery pack using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020826380.5U CN211700403U (en) | 2020-05-18 | 2020-05-18 | Square lithium battery module and battery pack using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211700403U true CN211700403U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020826380.5U Active CN211700403U (en) | 2020-05-18 | 2020-05-18 | Square lithium battery module and battery pack using same |
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|---|---|
| CN (1) | CN211700403U (en) |
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2020
- 2020-05-18 CN CN202020826380.5U patent/CN211700403U/en active Active
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