A kind of flexible package poly-lithium battery group structure
Technical field
The utility model relate to a kind of adopt many strings that technology such as fully-automatic laser welding or full-automatic spot welding realize and/or many and flexible package poly-lithium battery group structure.
Background technology
Progress and development along with science and technology, lithium ion battery has been the requisite new forms of energy approach of national economy every field at present, be widely used in electric automobile, electric bicycle, mobile phone, notebook computer, space flight and aviation, military, aspects such as energy storage, lithium ion battery mainly contains by the profile classification at present: square, cylinder, the flexible package polymer battery, wherein the flexible package polymer Li-ion battery is because of its flexible design, security performance is good, the heat-conductivity conducting performance is good, adaptive temperature is wide, but advantages such as high current charge-discharge have obtained in each field using widely.General lithium ion battery group is combined into jumbo battery pack or module by a plurality of low capacity cells by the many modes also of many strings, the flexible package polymer battery is softer so be not easy to assembling and connect because of its lug and body, and traditional connection in series-parallel connected mode generally adopts modes such as scolding tin, ultrasonic, spot welding, riveted joint with the battery strings parallel connection at present.Above connected mode generally all needs manual operations, and troublesome poeration and cannot reach the automation requirement connects and has following shortcoming in the combination: 1. the battery pole ear place is effectively fixing and support, and vibrations have the possibility of disconnected lug for a long time; 2. effectively do not separate before battery pole ear and the lug, be easy to the hidden danger of short circuit; 3. be difficult to dismounting after battery and battery assemble, be not easy to maintenance.These factors all directly influence the fail safe and the stability of battery pack, at above-mentioned defective, the utility model newly designed the many strings of a kind of flexible package poly-lithium battery and/or many and assembled connecting method, emphasis overcomes the above problems.
Summary of the invention
In order to overcome the deficiencies in the prior art, but the utility model provide a kind of security performance good, rational in infrastructure, assemble and dismantle flexible, the many strings of the easy full-automatic operation of series-parallel operation and/or the flexible package poly-lithium battery group of many and combining structure.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of flexible package poly-lithium battery group structure, comprise fixedly connected of plastic cement, fixedly connected of this plastic cement comprises plastic cement piece and injection moulding two copper sheets or copper billet thereon, there are two flexible package polymer batteries to stack, and the both positive and negative polarity lug on the battery and copper sheet or copper billet side are welded to form two string battery pack or two and battery pack by the connected mode of serial or parallel connection; With some two the string battery pack and/or two and battery pack stack, and plastic cement insulation fixed block, some two string battery pack that will stack and/or two and battery pack is connected and fixed and mutually insulated are set between fixedly connected of adjacent plastic cement, by solderable conductor be connected on these two string battery pack and/or two and battery pack in the copper sheet or the copper billet end face of fixedly connected of plastic cement their serial or parallel connections are formed many strings and/or many and poly-lithium battery group.
In the utility model, be connected for lenticular being fixed between fixedly connected of described plastic cement and the plastic cement insulation fixed block.
In the utility model, fixedly connected of described plastic cement is provided with the corresponding connecting hole in position with plastic cement insulation fixed block side, by screw rod they is connected and fixed.
In the utility model, fixedly connected of described plastic cement and plastic cement insulation fixed block top are provided with the position corresponding groove.
The beneficial effects of the utility model are: rely on technique scheme, the many strings of the utility model and/or many and flexible package poly-lithium battery group structure adopt technology such as laser welding or full-automatic spot welding, can all realize automation mechanized operation, compare with traditional welding manner, effectively reduce and reduced artificial and material cost; And all there is the fixing and insulation of fixedly connected of plastic cement and plastic cement insulation contiguous block in each battery seal district, can effectively prevent battery because of shake for a long time break lug or short circuit phenomenon; Wherein, be fixed structure or open connecting hole of fixedly connected of plastic cement and plastic cement insulation contiguous block lenticular at fixedly connected of plastic cement and plastic cement insulation contiguous block, by screw and screw rod battery is fixedly coupled structure, can reaches the purpose of assembling and convenient disassembly; In addition, be provided with the position corresponding groove at fixedly connected of plastic cement and plastic cement insulation fixed block top, but these groove voltage supplied detection line cablings can effectively high pressure and low-voltage line be separated, avoid the cabling cross-cutting issue.The utlity model has suitable technical and practicality, have the extensive value on the industry, can be widely used in electric automobile, electric bicycle, space flight and aviation, fields such as military affairs, energy storage.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of fixedly connected of plastic cement in the utility model;
Fig. 2 is the another kind of structural representation of fixedly connected of plastic cement in the utility model;
Fig. 3 is the structural representation of two string battery pack in the utility model;
Fig. 4 is in the utility model two and the structural representation of battery pack;
Fig. 5 is the structural representation of plastic cement insulation fixed block in the utility model;
Fig. 6 is the another kind of structural representation of plastic cement insulation fixed block in the utility model;
Fig. 7 is the structural representation after the assembling of many cascade polymers lithium battery group connects in the utility model;
Fig. 8 is the structural representation after the assembling of many also poly-lithium battery groups connects in the utility model;
Fig. 9 is the structural representation after many strings in the utility model, the assembling of many also poly-lithium battery groups connect;
Figure 10 is the structural representation after many strings in the utility model, another kind assembling many and the poly-lithium battery group connect;
Figure 11 is the another kind of structure chart of fixedly connected of plastic cement in the utility model;
Figure 12 is the another kind of structure chart of plastic cement insulation fixed block in the utility model;
Figure 13 is the structural representation that adopts the many and poly-lithium battery group of fixedly connected of plastic cement among Figure 11, Figure 12, plastic insulation fixed block.
Embodiment
Referring to figs. 1 through Fig. 6.A kind of flexible package poly-lithium battery group structure, comprise fixedly connected 1 in plastic cement, fixedly connected 1 in this plastic cement comprises plastic cement piece 11 and injection moulding two copper sheets or copper billet 12 thereon, there are two flexible package polymer batteries 21 to stack (in the same way or back-to-back stacking), and the both positive and negative polarity lug on the battery 21 22 and copper sheet or copper billet 12 sides are welded to form two string battery pack or two and battery pack by the connected mode of serial or parallel connection; With some two the string battery pack and/or two and battery pack stack, and plastic cement insulation fixed block 2, some two string battery pack that will stack and/or two and battery pack is connected and fixed and mutually insulated are set between fixedly connected 1 in adjacent plastic cement, by conductor 3 be welded on these two string battery pack and/or two and battery pack in the copper sheet or copper billet 12 end faces of fixedly connected 1 in plastic cement their serial or parallel connections are formed many strings and/or many and poly-lithium battery group.
In the utility model, be connected for lenticular being fixed between fixedly connected 1 in described plastic cement and the plastic cement insulation fixed block 2.
In the utility model, fixedly connected 1 in described plastic cement and plastic cement insulation fixed block 2 are provided with position corresponding groove 6.
Rely on technique scheme, the many strings of the utility model and/or many and flexible package poly-lithium battery group structure adopt technology such as laser welding or full-automatic spot welding, can all realize automation mechanized operation, compare, effectively reduce and reduced artificial and material cost with traditional welding manner; And all there are the 2 fixing and insulation of fixedly connected 1 in plastic cement and plastic cement insulation contiguous block in each battery seal district, can effectively prevent battery because of shake for a long time break lug or short circuit phenomenon; Wherein, be fixed structure or open connecting hole 4 of fixedly connected 1 in plastic cement and plastic cement insulation contiguous block 2 lenticular at fixedly connected 1 in plastic cement and plastic cement insulation contiguous block 2, by screw and screw rod 5 battery is fixedly coupled structure, can reaches the purpose of assembling and convenient disassembly; In addition, be provided with position corresponding groove 6 at fixedly connected 1 in plastic cement and plastic cement insulation fixed block 2 tops, but these groove 6 voltage supplied detection line cablings can effectively high pressure and low-voltage line be separated, avoid the cabling cross-cutting issue.
With reference to Fig. 7.As a kind of execution mode of the present utility model (many string structures), some two string battery pack are stacked, and plastic cement insulation fixed block 2 is set between fixedly connected 1 in adjacent plastic cement, some two string battery pack that will stack are connected and fixed and mutually insulated, by modes such as laser or spot welding copper sheet or copper billet 12 end faces that conductor 3 is welded on fixedly connected 1 in plastic cement in these two strings battery pack are composed in series many cascade polymers lithium battery group with them.
With reference to Fig. 8.As another kind of execution mode of the present utility model (many and structure), with some two and battery pack stack, and plastic cement insulation fixed block 2 is set between fixedly connected 1 in adjacent plastic cement, some two and the battery pack that will stack be connected and fixed and mutually insulated, by modes such as laser or spot welding with conductor 3 be welded on these two and battery pack in the copper sheet or copper billet 12 end faces of fixedly connected 1 in plastic cement they are composed in parallel many and poly-lithium battery groups.
With reference to Fig. 9.As another kind of execution mode of the present utility model (the many and structure of many strings), with some two and battery pack stack by positive and negative order connection in series-parallel successively, and plastic cement insulation fixed block 2 is set between fixedly connected 1 in adjacent plastic cement, some two and the battery pack that will stack be connected and fixed and mutually insulated, by modes such as laser or spot welding copper sheet or copper billet 12 end faces that conductor 3 is welded on fixedly connected 1 in plastic cement in these battery pack formed the many and poly-lithium battery groups of many strings with their connection in series-parallel.
With reference to Figure 10.As another kind of execution mode of the present utility model (the many and structure of many strings), with some two and battery pack and two string battery pack earlier and the back string stack by positive and negative order, and plastic cement insulation fixed block 2 is set between fixedly connected 1 in adjacent plastic cement, some battery pack that will stack are connected and fixed and mutually insulated, by modes such as laser or electric welding copper sheet or copper billet 12 end faces that conductor 3 is welded on fixedly connected 1 in plastic cement in these battery pack are formed the many and poly-lithium battery groups of many strings with their connection in series-parallel.
With reference to Figure 11, Figure 12.In the utility model, fixedly connected 1 in described plastic cement is provided with the corresponding connecting hole in position 4 with plastic cement insulation fixed block 2 sides, by screw rod 5 they is connected and fixed.Figure 13 is the structural representation of the many and poly-lithium battery group of fixedly connected of plastic cement among employing Figure 11, Figure 12, plastic insulation fixed block.
The utlity model has suitable technical and practicality, have the extensive value on the industry, can be widely used in electric automobile, electric bicycle, space flight and aviation, fields such as military affairs, energy storage.