CN107452911B - Battery package structure and electric automobile - Google Patents
Battery package structure and electric automobile Download PDFInfo
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- CN107452911B CN107452911B CN201710610196.XA CN201710610196A CN107452911B CN 107452911 B CN107452911 B CN 107452911B CN 201710610196 A CN201710610196 A CN 201710610196A CN 107452911 B CN107452911 B CN 107452911B
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- support frame
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- aluminum bar
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- 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
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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
Abstract
The invention provides a battery pack structure and an electric automobile, relates to the technical field of battery structures of electric automobiles, and comprises the following components: the battery comprises a negative electrode aluminum bar, a lower support frame, a battery cell, an upper support frame and a positive electrode aluminum bar; the negative aluminum bar is fixedly connected with the lower support frame, the lower support frame is fixedly connected with the upper support frame, and the upper support frame is fixedly connected with the positive aluminum bar; the battery cell is fixedly arranged between the lower support frame and the upper support frame. According to the scheme, the battery cell is tightly contacted with the anode aluminum bar and the cathode aluminum bar, the deformation is small, the cost is low, the assembly difficulty and the disassembly difficulty of the battery pack are reduced, and the battery pack has smaller anti-vibration performance and smaller contact internal resistance.
Description
Technical Field
The invention belongs to the technical field of battery structures of electric automobiles, and particularly relates to a battery pack structure and an electric automobile.
Background
In the prior art, a battery core of a battery pack is fixedly connected with an aluminum bar in a welding mode, but the welding process has high complexity, so that the assembly efficiency of the battery pack is low, and the production cost is increased; and when the battery pack is recycled in a gradient manner, the problem that the battery cell and the aluminum bar are difficult to disassemble exists, so that the battery cell and the aluminum bar are damaged in the disassembling process.
Disclosure of Invention
The invention aims to provide a battery pack structure and an electric automobile, so that the problems that in the prior art, the welding process of a battery core and an aluminum bar is high in complexity, and the battery core and the aluminum bar are difficult to disassemble are solved.
In order to achieve the above object, an embodiment of the present invention provides a battery pack structure, including:
the battery comprises a negative electrode aluminum bar, a lower support frame, a battery cell, an upper support frame and a positive electrode aluminum bar;
the negative aluminum bar is fixedly connected with the lower support frame, the lower support frame is fixedly connected with the upper support frame, and the upper support frame is fixedly connected with the positive aluminum bar;
the battery cell is fixedly arranged between the lower support frame and the upper support frame.
Wherein, the battery package structure still includes: and the negative electrode clamping spring is arranged on the lower support frame, one end of the negative electrode clamping spring is connected with the negative electrode of the battery cell, and the other end of the negative electrode clamping spring is connected with the negative electrode aluminum bar.
The upper surface of the negative aluminum bar is provided with a first groove, and the negative clamping spring is welded in the first groove; and the upper surface is the surface of the negative electrode aluminum bar attached to the lower support frame.
Wherein, the battery package structure still includes: the battery cell comprises an upper support frame, a positive electrode clamping spring arranged on the upper support frame, wherein one end of the positive electrode clamping spring is connected with the positive electrode of the battery cell, and the other end of the positive electrode clamping spring is connected with the positive electrode aluminum bar.
The lower surface of the anode aluminum bar is provided with a second groove, and the anode clamping spring is welded in the second groove; and the lower surface is the surface of the anode aluminum bar attached to the upper support frame.
The negative clamping spring comprises a first plane structure and a plurality of tightening structures, and a first accommodating space is defined by the first plane structure and the tightening structures; the negative electrode of the battery cell is inserted into the first accommodating space.
The tightening structure comprises a first deformation structure, a side wall tightening structure and a clamping structure; the first deformation structure is connected with the first plane structure at one end, the other end is connected with the lateral wall tightening structure, the lateral wall tightening structure is perpendicular to the first plane structure, the other end of the lateral wall tightening structure is connected with the clamping structure, and the clamping structure extends to the outer side of the first accommodating space.
The battery pack structure further comprises a tightening spring, and the tightening spring is arranged on the outer side of the tightening structure and is positioned at the connecting position of the side wall tightening structure and the clamping structure; wherein, the lacing spring is a ring-shaped spring.
And a first preset gap is arranged between the adjacent tightening structures.
The positive clamping spring comprises a second plane structure, a plurality of second deformation structures and a welding structure, wherein the plurality of second deformation structures are symmetrically arranged at the edge of the second plane structure and are perpendicular to the second plane structure; the welding structure is arranged at the other end of the second deformation structure, perpendicular to the second deformation structure and extends outwards.
The positive electrode of the battery cell is abutted against the lower surface of the second planar structure, wherein the lower surface is the surface of the second planar structure far away from the second deformation structure; the welding structure is welded to the second groove.
Wherein the second deformed structure is a zigzag shape.
Wherein the lower support frame comprises a third planar structure and a first cylindrical structure which are integrally formed; the lower support frame is provided with a first bolt hole coaxial with the first cylinder structure, and the third plane structure is provided with a first through hole.
The upper support frame comprises a fourth plane structure and a second column structure which are integrally formed, wherein a second bolt hole coaxial with the second column structure is formed in the upper support frame, and a second through hole is formed in the fourth plane structure;
wherein the first and second pillar structures are located between the third and fourth planar structures;
the negative clamping spring is inserted into the first through hole, and the positive clamping spring is inserted into the second through hole.
The first through hole comprises a first inner diameter through hole and a second inner diameter through hole, wherein the first inner diameter through hole and the second inner diameter through hole are coaxial, and the inner diameter of the first inner diameter through hole is larger than that of the second inner diameter through hole; the negative pole joint spring set up in first internal diameter through-hole, the negative pole of electricity core passes second internal diameter through-hole, with negative pole joint spring joint.
A third bolt hole is formed in the position, corresponding to the first bolt hole, of the negative aluminum row, and a fourth bolt hole is formed in the position, corresponding to the second bolt hole, of the positive aluminum row;
the positive aluminum bar, the upper support frame, the lower support frame and the negative aluminum bar are fixedly connected through bolts sequentially penetrating through the first bolt holes, the second bolt holes, the third bolt holes and the fourth bolt holes.
The embodiment of the invention also provides an electric automobile which comprises the battery pack structure.
The technical scheme of the invention at least has the following beneficial effects:
according to the invention, the connection between the negative electrode of the battery cell and the negative electrode aluminum bar is realized through the negative electrode clamping spring, and the connection between the positive electrode of the battery cell and the positive electrode clamping spring is realized through the positive electrode clamping spring, so that the battery cell is prevented from being fixedly connected with the positive electrode aluminum bar and the negative electrode aluminum bar in a welding manner, the problem of high process difficulty in the battery pack assembling process is solved, and the assembling efficiency is improved; meanwhile, the problem that the battery pack is difficult to disassemble during echelon utilization is solved.
Drawings
Fig. 1 is a sectional view of a battery pack structure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a battery cell according to an embodiment of the present invention before being assembled with an aluminum busbar;
FIG. 3 is a schematic view of the negative clamping spring and the tightening spring according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a positive clamping spring according to an embodiment of the invention.
Description of reference numerals:
1-negative aluminum row, 11-first groove, 12-third bolt hole, 2-lower support frame, 21-third plane structure, 211-first through hole, 211A-first inner diameter through hole, 211B-second inner diameter through hole, 22-first cylinder structure, 221-first bolt hole, 3-negative clamping spring, 31-first plane structure, 32-tightening structure, 321-first deformation structure, 322-side wall tightening structure, 323-clamping structure, 4-tightening spring, 5-electric core, 6-positive clamping spring, 61-second plane structure, 62-second deformation structure, 63-welding structure, 7-upper support frame, 71-fourth plane structure, 711-second through hole, 72-second cylinder structure, 721-second bolt hole, 8-positive aluminum row, 81-second groove, 82-fourth bolt hole.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a battery pack structure aiming at the problems that in the prior art, a battery core is fixedly connected with an aluminum bar in a welding mode, so that the assembly process is complex and the disassembly is difficult, and the battery core is connected with the aluminum bar in a clamping mode, so that the complexity of the assembly process of the battery pack is reduced and the disassembly difficulty is reduced.
As shown in fig. 1 and 2, an embodiment of the present invention provides a battery pack structure, including:
the battery comprises a negative electrode aluminum bar 1, a lower support frame 2, a battery cell 5, an upper support frame 7 and a positive electrode aluminum bar 8;
the negative aluminum bar 1 is fixedly connected with the lower support frame 2, the lower support frame 2 is fixedly connected with the upper support frame 7, and the upper support frame 7 is fixedly connected with the positive aluminum bar 8;
the battery cell 5 is fixedly installed between the lower support frame 2 and the upper support frame 3.
Specifically, the negative electrode of the battery cell 5 is arranged on the lower support frame 2 in a penetrating manner, and the positive electrode of the battery cell 5 is arranged on the upper support frame 7 in a penetrating manner, so that the battery cell 5 is fixed between the lower support frame 2 and the upper support frame 7, and the battery cell 5 is prevented from being infirm in contact with the positive aluminum bar 8 and the negative aluminum bar 7 due to vibration of an electric automobile in the using process, and a battery pack cannot supply power to the load of the electric automobile.
Further, the battery pack structure further includes: set up in negative pole joint spring 3 on the lower carriage 2, 3 one end of negative pole joint spring is connected with the negative pole of electric core 5, the other end with negative pole aluminium is arranged 1 and is connected.
Specifically, a first groove 11 is formed in the upper surface of the negative aluminum bar 1, and the negative clamping spring 3 is welded in the first groove 11; the upper surface is the surface of the negative electrode aluminum bar 1 attached to the lower support frame 2.
As can be seen from the above, the negative electrode of the battery cell 5 is fixedly connected to the negative electrode aluminum bar 1 through the negative electrode clamping spring 3; therefore, the material of negative pole joint spring 3 should be conducting material, and is more excellent, the material selection of negative pole joint spring 3 connects the internal resistance less, and the trade mark is the brass material of H65, thereby reduces negative pole joint spring 3 is to the consumption of the output voltage of battery package improves the electric property of battery package.
As shown in fig. 3, the negative clamping spring 3 includes a first planar structure 31 and a plurality of tightening structures 32, and the first planar structure 31 and the plurality of tightening structures 32 enclose a first accommodating space; as shown in fig. 1, the negative electrode of the battery cell 5 is inserted into the first accommodating space.
Specifically, a circular hole is formed in the center of the first planar structure 31, a plurality of gaps are formed in the edge of the first planar structure 31, the gaps are located between the adjacent tightening structures 32, the weight of the negative clamping spring 3 is reduced by the circular hole and the gaps, and when the negative clamping spring 3 and the negative aluminum bar 8 adopt an argon arc welding process, the circular hole and the gaps can be used for welding, so that the welding firmness is improved; the negative electrode clamping spring 3 and the negative electrode aluminum bar 8 can also be fixedly connected in a laser welding mode or in other modes.
Specifically, the tightening structure 32 includes a first deformation structure 321, a sidewall tightening structure 322, and a clamping structure 323; wherein, the one end of first deformation structure 321 with first planar structure 31 is connected, the other end with lateral wall compact structure 322 is connected, lateral wall compact structure 322 perpendicular to first planar structure 31, the other end of lateral wall compact structure 322 with clamping structure 323 is connected, clamping structure 323 to first accommodation space's the outside extends. The tightening structure 32 of the above structure increases the contact area between the battery cell 5 and the negative clamping spring 3.
A first preset gap is arranged between adjacent tightening structures 32; it is adjacent set up first predetermined clearance between tightening structure 32, realized negative pole joint spring 3 during operation, tightening structure 32 can be according to electric core 5's size carries out elastic deformation, makes negative pole joint spring 3 with electric core 5 laminates closely, thereby does electric core 5 provides certain contact force, improves electric core 5 with negative pole aluminium bar 1's electrical connection's reliability.
Further, the battery pack structure further includes a tightening spring 4, and the tightening spring 4 is disposed outside the tightening structure 32 and located at a connection position between the sidewall tightening structure 322 and the clamping structure 323; wherein the tightening spring 4 is a circular ring spring.
Specifically, when the negative clamping spring 3 is in a natural state, the negative clamping spring 3 is bowl-shaped, and a first preset angle is formed between the inner surface of the first deformation structure 321 and the inner surface of the first planar structure 31; when negative pole joint spring is in deformation state, negative pole joint spring 3 is similar hollow cylindrical, promptly: the first deformation structure 321 is elastically deformed under the extrusion of the battery cell 5, and is located in the same plane as the first planar structure 31; when negative pole joint spring 3 is in operating condition, lateral wall tightening structure 322 with the lateral wall of electricity core 5 laminates closely, simultaneously, tighten spring 4 and provide certain power of tightening, has further strengthened electricity core 5 with the reliability of negative pole joint spring 3 contact.
Further, the battery pack structure further includes: set up in anodal joint spring 6 on the upper bracket 7, anodal joint spring 6 one end with the anodal of electricity core 5 is connected, the other end with anodal aluminium is arranged 8 and is connected.
Specifically, a second groove 81 is formed in the lower surface of the anode aluminum bar 8, and the anode clamping spring 6 is welded in the second groove 81; the lower surface is the surface of the positive aluminum bar 8 attached to the upper support frame 7.
As can be seen from the above, the positive electrode of the battery cell 5 is fixedly connected to the positive aluminum bar 8 through the positive clamping spring 6; therefore, the material of the positive clamping spring 6 also needs to be a conductive material, and is better, the material of the positive clamping spring 6 is selected to be connected with a brass material with a small internal resistance and a brand number of H65, so that the consumption of the output voltage of the battery pack by the positive clamping spring 6 is reduced, and the electrical performance of the battery pack is improved.
As shown in fig. 4, the positive clamping spring 6 includes a second planar structure 61, a plurality of second deformation structures 62 and a welding structure 63, wherein the plurality of second deformation structures 62 are symmetrically disposed on an edge of the second planar structure 61 and perpendicular to the second planar structure 62; the welding structure 63 is disposed at the other end of the second deforming structure 62, and extends perpendicular to the second deforming structure 62 and outward.
Specifically, the positive electrode of the battery cell 5 abuts against a lower surface of the second planar structure 61, where the lower surface is a surface of the second planar structure away from the second deformation structure; the welding structure 63 is welded in the second groove 81.
Wherein the second deformed structure 62 is a zigzag shape; when the positive clamping spring 6 is in a working state, the positive clamping spring 6 provides a certain contact force for the battery cell 5 through the elastic deformation compression amount of the second deformation structure 62 in the shape of a Chinese character 'ji', and the current of the battery cell 5 is output to the positive aluminum bar 8.
Wherein the lower support frame 2 comprises a third plane structure 21 and a first column structure 22 which are integrally formed; the lower supporting frame 2 is provided with a first bolt hole 221 coaxial with the first column structure 22, and the third planar structure 21 is provided with a first through hole 211.
Specifically, a plurality of first through holes 211 are formed in the third planar structure 21, each first through hole 211 is opposite to the corresponding first groove 11, and the lower support frame 2 is used for fixing the plurality of battery cells 5 and is connected to the same negative aluminum bar 1 through the plurality of negative clamping springs 3.
The first through hole 211 comprises a first inner diameter through hole 211A and a second inner diameter through hole 211B, wherein the first inner diameter through hole 211A and the second inner diameter through hole 211B are coaxial, and the inner diameter of the first inner diameter through hole 211A is larger than that of the second inner diameter through hole 211B; negative pole joint spring 3 set up in first internal diameter through-hole 211A, the negative pole of electricity core 5 passes second internal diameter through-hole 211B, with negative pole joint spring 3 joint.
Specifically, the first through hole 211 is arranged in a step shape, so that the lower support frame 2, the negative clamping spring 3 and the battery cell 5 are closely attached, and the battery cell 5 is prevented from rotating in the first through hole 211 when the inner diameter of the first through hole 211 meets the size requirement of the negative clamping spring 3; or, when the inner diameter of the first through hole 211 meets the size requirement of the battery cell 5, the negative clamping spring 3 cannot be inserted into the first through hole 211.
The upper support frame 7 comprises a fourth plane structure 71 and a second column structure 72 which are integrally formed, wherein a second bolt hole 721 coaxial with the second column structure 72 is arranged on the upper support frame 7, and a second through hole 711 is arranged on the fourth plane structure 71;
specifically, a plurality of second through holes 711 are formed in the fourth plane structure 71, each of the second through holes 711 is opposite to the second groove 81, and the upper support frame 7 is used for fixing the plurality of battery cells 5 and is connected to the same positive aluminum bar 1 through the plurality of positive clamping springs 6.
Wherein, be provided with a plurality of on the lower carriage 2 first cylinder structure 22, be provided with a plurality of on the upper carriage 7 second cylinder structure 72, each first cylinder structure 22 all with one second cylinder structure 72 corresponds, and a plurality of first cylinder structure 22 and a plurality of second cylinder structure 72 all are located between third planar structure 21 and the fourth planar structure 22.
Further, a third bolt hole 12 is disposed at a position of the negative aluminum row 1 corresponding to the first bolt hole 221, and a fourth bolt hole 82 is disposed at a position of the positive aluminum row 8 corresponding to the second bolt hole 721.
The positive aluminum bar 8, the upper support frame 7, the lower support frame 2 and the negative aluminum bar 1 are fixedly connected with each other through bolts sequentially passing through the first bolt holes 221, the second bolt holes 721, the third bolt holes 12 and the fourth bolt holes 82.
Specifically, in the assembling process, firstly, after the negative clamping spring 3 is welded in the first groove 11, the tightening spring 4 is clamped outside the negative clamping spring 3, and then the negative clamping spring 3 is inserted into the first inner diameter through hole 211A, so that the lower support frame 2 is attached to the negative aluminum bar 1; the negative electrode of the battery cell 5 penetrates through the second inner diameter through hole 211B, is inserted into the first accommodating space, and is clamped with the negative electrode clamping spring 3; then, after the positive clamping spring 6 is welded in the second groove 81, the positive clamping spring 6 is arranged in the second through hole 711 in a penetrating manner; then, the battery cell 5 is inserted into the second through hole 711 and abuts against the positive clamping spring 6; meanwhile, the second cylinder structure 72 corresponds to and is coaxial with the first cylinder structure 22; finally, bolts sequentially penetrate through the first bolt hole 221, the second bolt hole 721, the third bolt hole 12 and the fourth bolt hole 82 and are matched with nuts to fixedly connect the negative aluminum row 1, the lower support frame 2, the upper support frame 7 and the positive aluminum row 8.
It should be noted that, in order to ensure the insulation of the battery pack structure, the lower support frame 2 and the upper support frame 7 are made of an insulating material such as plastic; before assembling, the inner surfaces of the third bolt holes 12, the fourth bolt holes 82, the upper surface of the anode aluminum bar 8 and the lower surface of the cathode aluminum bar 1 are all provided with insulating gaskets, so that the cathode aluminum bar 1 and the anode aluminum bar 8 are prevented from being conducted through the bolts.
In the embodiment of the invention, the negative clamping spring 3 is set to include a plurality of tightening structures 32, so that the contact area between the negative electrode of the battery cell 5 and the negative clamping spring 3 is increased, and the contact internal resistance of the battery pack is reduced; the tightening spring 4 is arranged on the outer side of the negative clamping spring 3, so that the contact reliability of the battery cell 5 and the negative clamping spring 3 is improved; the negative clamping spring 3, the positive clamping spring 6 and the tightening spring 4 are made of brass materials, so that the connection internal resistance of the battery pack is further reduced; the battery cell 5 is fixedly connected with the cathode aluminum bar 1 and the anode aluminum bar 8 in a clamping manner, so that the difficulty of the assembly process of the battery pack is reduced, and the battery pack is convenient to disassemble during echelon utilization; in addition, the battery pack structure provided by the embodiment of the invention has the advantages of tight contact, small deformation, low cost and the like, and has intentional electrical properties of vibration resistance, small contact internal resistance and the like.
As shown in fig. 2, the positive aluminum bar 8, the upper support frame 7, the lower support frame 2 and the negative aluminum bar 1 are all provided with a mark angle, and the mark angle is an included angle formed by cutting two adjacent edges, so that positioning during assembly is realized. At the included angle opposite to the sign angle, the anode aluminum row 8 and the cathode aluminum row 1 are provided with first mounting holes; the upper supporting frame 7 with be provided with the third cylinder structure on the lower carriage 2, wherein the third cylinder has the second mounting hole structurally, passes through the second bolt first mounting hole with the second mounting hole realizes will a plurality of the battery package structure is established ties.
The embodiment of the invention also provides an electric automobile which comprises the battery pack structure.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A battery pack structure, comprising: the battery comprises a negative electrode aluminum bar (1), a lower support frame (2), a battery cell (5), an upper support frame (7) and a positive electrode aluminum bar (8); wherein the content of the first and second substances,
the negative aluminum bar (1) is fixedly connected with the lower support frame (2), the lower support frame (2) is fixedly connected with the upper support frame (7), and the upper support frame (7) is fixedly connected with the positive aluminum bar (8);
the battery cell (5) is fixedly arranged between the lower support frame (2) and the upper support frame (7);
the battery pack structure further includes: the negative electrode clamping spring (3) is arranged on the lower support frame (2), one end of the negative electrode clamping spring (3) is connected with the negative electrode of the battery cell (5), and the other end of the negative electrode clamping spring is connected with the negative electrode aluminum bar (1);
the negative clamping spring (3) comprises a first plane structure (31) and a plurality of tightening structures (32), and a first accommodating space is defined by the first plane structure (31) and the tightening structures (32); the negative electrode of the battery cell (5) is inserted into the first accommodating space;
the tightening structure (32) comprises a first deformation structure (321), a side wall tightening structure (322) and a clamping structure (323); wherein, the one end of first deformation structure (321) with first planar structure (31) is connected, the other end with lateral wall tightening structure (322) are connected, lateral wall tightening structure (322) perpendicular to first planar structure (31), the other end of lateral wall tightening structure (322) with joint structure (323) are connected, joint structure (323) to first accommodation space's outside is extended.
2. The battery pack structure according to claim 1, wherein a first groove (11) is formed in the upper surface of the negative aluminum row (1), and the negative clamping spring (3) is welded in the first groove (11); the upper surface is the surface of the negative electrode aluminum bar (1) attached to the lower support frame (2).
3. The battery pack structure of claim 1, further comprising: set up in anodal joint spring (6) on upper bracket (7), anodal joint spring (6) one end with the anodal of electric core (5) is connected, the other end with anodal aluminium is arranged (8) and is connected.
4. The battery pack structure according to claim 3, wherein a second groove (81) is formed in the lower surface of the positive aluminum row (8), and the positive clamping spring (6) is welded in the second groove (81); the lower surface is the surface of the positive aluminum bar (8) attached to the upper support frame (7).
5. The battery pack structure of claim 1, further comprising a tightening spring (4), wherein the tightening spring (4) is disposed outside the tightening structure (32) and at the connection between the sidewall tightening structure (322) and the latch structure (323); wherein, the lacing spring (4) is a circular ring spring.
6. The battery pack structure according to claim 1, wherein a first preset gap is provided between adjacent tightening structures (32).
7. The battery pack structure according to claim 4, wherein the positive clamping spring (6) comprises a second planar structure (61), a plurality of second deformation structures (62) and a welding structure (63), wherein the plurality of second deformation structures (62) are symmetrically arranged at the edge of the second planar structure (61) and are perpendicular to the second planar structure (61); the welding structure (63) is arranged at the other end of the second deformation structure (62), is perpendicular to the second deformation structure (62), and extends towards the outside.
8. The battery pack structure according to claim 7, wherein the positive electrode of the battery cell (5) abuts against a lower surface of the second planar structure (61), wherein the lower surface is a surface of the second planar structure (61) away from the second deformation structure (62); the welding structure (63) is welded to the second groove (81).
9. The battery pack structure of claim 7, wherein the second crush structure (62) is a zigzag shape.
10. The battery pack structure of claim 3,
the lower support frame (2) comprises a third plane structure (21) and a first column structure (22) which are integrally formed; the lower support frame (2) is provided with a first bolt hole (221) coaxial with the first column body structure (22), and the third plane structure (21) is provided with a first through hole (211).
11. The battery pack structure of claim 10,
the upper support frame (7) comprises a fourth plane structure (71) and a second column structure (72) which are integrally formed, wherein a second bolt hole (721) which is coaxial with the second column structure (72) is formed in the upper support frame (7), and a second through hole (711) is formed in the fourth plane structure (71);
wherein the first pillar structure (22) and the second pillar structure (72) are located between the third planar structure (21) and the fourth planar structure (71);
the negative clamping spring (3) is inserted into the first through hole (211), and the positive clamping spring (6) is inserted into the second through hole (711).
12. The battery pack structure according to claim 11, wherein the first through-hole (211) comprises a first inner diameter through-hole (211A) and a second inner diameter through-hole (211B), wherein the first inner diameter through-hole (211A) and the second inner diameter through-hole (211B) are coaxial, and wherein the inner diameter of the first inner diameter through-hole (211A) is larger than the inner diameter of the second inner diameter through-hole (211B); negative pole joint spring (3) set up in first internal diameter through-hole (211A), the negative pole of electric core (5) passes second internal diameter through-hole (211B), with negative pole joint spring (3) joint.
13. The battery pack structure of claim 11,
a third bolt hole (12) is formed in the position, corresponding to the first bolt hole (221), of the negative aluminum row (1), and a fourth bolt hole (82) is formed in the position, corresponding to the second bolt hole (721), of the positive aluminum row (8);
the positive aluminum bar (8), the upper support frame (7), the lower support frame (2) and the negative aluminum bar (1) are fixedly connected through bolts sequentially passing through the first bolt holes (221), the second bolt holes (721), the third bolt holes (12) and the fourth bolt holes (82).
14. An electric vehicle characterized by comprising the battery pack structure according to any one of claims 1 to 13.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710610196.XA CN107452911B (en) | 2017-07-25 | 2017-07-25 | Battery package structure and electric automobile |
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| CN201710610196.XA CN107452911B (en) | 2017-07-25 | 2017-07-25 | Battery package structure and electric automobile |
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| CN107452911B true CN107452911B (en) | 2020-06-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024068219A1 (en) * | 2022-09-29 | 2024-04-04 | Lisa Dräxlmaier GmbH | Contact element for electrically conductively contacting a battery cell housing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109545546B (en) * | 2018-12-21 | 2024-04-12 | 美尔森电气保护系统(上海)有限公司 | Battery or capacitor quick connecting device based on laminated busbar |
| CN113141725B (en) * | 2021-03-30 | 2022-05-03 | 江西威尔高电子股份有限公司 | Industry intelligence internet line board check and maintenance is with firm equipment |
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| CN204441397U (en) * | 2015-01-09 | 2015-07-01 | 山东精工电子科技有限公司 | Automation cylindrical lithium ion battery group |
| CN106531926A (en) * | 2017-01-12 | 2017-03-22 | 东莞市德尔能新能源股份有限公司 | Removable lithium-ion battery unit free of spot welding, battery module and application thereof |
| CN106876646A (en) * | 2015-11-24 | 2017-06-20 | 诺德菲尔斯有限公司 | Bus-bar and the battery module with this bus-bar |
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| JP2005019029A (en) * | 2003-06-23 | 2005-01-20 | Olympus Corp | Battery contact piece device |
| JP5903564B2 (en) * | 2013-12-13 | 2016-04-13 | パナソニックＩｐマネジメント株式会社 | Assembled battery |
| US20170222207A1 (en) * | 2016-02-03 | 2017-08-03 | Boston-Power, Inc. | Battery Cell Connector, Interconnect Board And Battery Block System |
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| CN204441397U (en) * | 2015-01-09 | 2015-07-01 | 山东精工电子科技有限公司 | Automation cylindrical lithium ion battery group |
| CN106876646A (en) * | 2015-11-24 | 2017-06-20 | 诺德菲尔斯有限公司 | Bus-bar and the battery module with this bus-bar |
| CN106531926A (en) * | 2017-01-12 | 2017-03-22 | 东莞市德尔能新能源股份有限公司 | Removable lithium-ion battery unit free of spot welding, battery module and application thereof |
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| WO2024068219A1 (en) * | 2022-09-29 | 2024-04-04 | Lisa Dräxlmaier GmbH | Contact element for electrically conductively contacting a battery cell housing |
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| CN107452911A (en) | 2017-12-08 |
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