CN212182431U

CN212182431U - High security performance module

Info

Publication number: CN212182431U
Application number: CN202021187637.3U
Authority: CN
Inventors: 沈晓斌; 张艳; 周文星; 朱咸龙; 夏明博
Original assignee: Huai'an Junsheng New Energy Technology Co ltd
Current assignee: Huai'an Junsheng New Energy Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2020-12-18
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a high security performance module, including shell subassembly and the cell subassembly of setting in the shell subassembly inside, the shell subassembly comprises first casing and second casing welded fastening together, the tip of cell subassembly is provided with the apron, the both ends of shell subassembly all are provided with the end plate, the inboard surface of end plate has seted up inboard cavity, the surface of apron is provided with central busbar, and central busbar includes two side row spare; do from foaming filler processing through clearance department between busbar and end plate, can prevent the busbar short circuit under extreme operating mode conditions such as extrusion, collision, impact, avoid the battery to receive the damage the dangerous condition that appears on fire, explosion, improve the electrical safety of module to through the embedment that carries out the heat conduction structure glue at the lower bottom surface of battery module and last top surface, on the effectual heat conduction shell with the module inside, reduce the cycle life that the difference in temperature improves battery system.

Description

High security performance module

Technical Field

The utility model belongs to the technical field of the battery module, concretely relates to high security performance module.

Background

With the continuous development of new energy technology, battery modules are also widely used gradually, the battery modules can be understood as lithium ion battery cells combined in a series-parallel connection mode, and a general battery module mainly comprises a shell, an end plate, a cover plate, battery cells, tabs, a bus bar and an FPC (flexible printed circuit), and is widely used for continuous power supply of various new energy devices.

The clearance between busbar and the end plate is not done from foaming filler and is handled among the current battery module, make the battery module be extrusion, the collision, under extreme operating mode conditions such as impact, the short circuit appears easily in the busbar, lead to the battery to receive to damage and appear catching fire, the dangerous condition of explosion, and there is not heat conduction aluminum plate's design in current battery module, only can be to module bottom embedment, heat conduction path extension, material coefficient of heat conduction reduces, low down in the high temperature, and then lead to the module difference in temperature to rise, reduce battery system's cycle life, current battery module does not have the fusing protection simultaneously, can damage the battery when the electric current is too big, even catch fire etc. and set up insurance at positive negative pole, receive the influence of junction contact resistance such as outside busbar easily, make the fusing receive the influence accurate inadequately, therefore the utility model provides a high security performance module.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a high safety module, which solves the problems of the prior art that the gap between the bus bar and the end plate is not treated by the self-foaming filler, so that the bus bar is easily short-circuited under the extreme working conditions of extrusion, collision, impact, etc. of the battery module, which results in the damage of the battery and the danger of fire and explosion, and the prior battery module has no design of heat-conducting aluminum plate, and only has encapsulation against the bottom of the module, the heat-conducting path is lengthened, the heat-conducting coefficient of the material is reduced, the temperature is high and low, and the temperature difference of the module is increased, thereby reducing the cycle life of the battery system, meanwhile, the prior battery module has no fusing protection, the battery is damaged when the current is too large, even the battery is on fire, and the safety is provided at the positive and negative poles, and is easily affected by the contact resistance at, so that the fusing is not accurately affected.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high security performance module, includes shell subassembly and sets up the cell subassembly in the shell subassembly inside, shell subassembly comprises welded fastening first casing and second casing together, the tip of cell subassembly is provided with the apron, the both ends of shell subassembly all are provided with the end plate, inboard cavity has been seted up to the inboard surface of end plate, the surface of apron is provided with central busbar, and central busbar includes two side row spare, two be fixed with two fusing fuses between the side row spare, a plurality of glue injection holes have all been seted up to the top surface and the bottom surface of shell subassembly, two exhaust holes have all been seted up to the top surface and the bottom surface of shell subassembly.

Preferably, the top surface and the bottom surface of shell subassembly all are provided with two anticreep fasteners, the surface of first casing and second casing all is provided with the rectangular block corresponding with the anticreep fastener, and the both ends of anticreep fastener all seted up with the corresponding rectangle breach of rectangular block.

Preferably, the top surfaces of the two anti-falling clamping pieces are fixed with bumps, and the bottom surfaces of the other two anti-falling clamping pieces are provided with grooves matched with the bumps.

Preferably, a clamping connection mechanism is arranged between the end of the anti-falling clamping piece and the rectangular block, the clamping connection mechanism comprises a right trapezoid telescopic clamping block arranged on the inner side of the rectangular notch, and a side clamping groove corresponding to the right trapezoid telescopic clamping block is formed in the surface of one side of the rectangular block.

Preferably, the bottom end of the right trapezoid telescopic clamping block is connected with a spring chamber, and the bottom end of the spring chamber is arranged inside the anti-falling clamping piece.

Preferably, the rectangular pull block is fixed on the surface of the bottom end of the right trapezoid telescopic clamping block, two rectangular pull grooves corresponding to the rectangular pull block are formed in the surface of the top of the anti-falling clamping piece, the top end of the rectangular pull block penetrates through the rectangular pull grooves, and the shifting block is arranged on the surface of the top end of the rectangular pull block.

Preferably, the bottom end of the rectangular pull groove is provided with a through hole corresponding to the rectangular pull block, and the through hole is communicated with the spring chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. do from foaming filler processing through clearance department between busbar and end plate, can be at the extrusion, the collision, prevent the busbar short circuit under extreme operating mode conditions such as impact, avoid the battery to receive the damage to appear on fire, the dangerous condition of explosion, improve the electrical safety of module, and carry out the embedment that the heat conduction structure was glued through lower bottom surface at the battery module and last top surface, effectual with module inside heat conduction on the shell, reduce the difference in temperature and improve battery system's cycle life, set up the fusing fuse at the middle part busbar simultaneously, can the maximize utilizes the space, and do not influenced by outside busbar and other contact resistance, can be more accurate carry out circuit protection and fusing.

2. Through the anticreep fastener, rectangular block, rectangle breach, block coupling mechanism, lug and the recess that sets up, can play good anticreep effect to first casing and second casing to improve the steadiness of shell subassembly, cause the holistic steadiness of battery module to obtain further promotion, make a plurality of battery modules stack together more stable when depositing from top to bottom simultaneously, be difficult for appearing empting.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a partial schematic view of the cover plate with the end plate removed according to the present invention;

fig. 3 is a perspective view of the center bus bar of the present invention;

fig. 4 is an inside perspective view of the end plate of the present invention;

fig. 5 is a front sectional view of the joint of the anti-dropping fastener and the shell component in embodiment 2 of the invention;

fig. 6 is a partial enlarged view of the area a in fig. 5 according to embodiment 2 of the present invention;

fig. 7 is a partial enlarged view of the area B in fig. 6 according to embodiment 2 of the present invention;

in the figure: 1. a first housing; 2. a second housing; 3. an end plate; 4. injecting glue holes; 5. an exhaust hole; 6. a rectangular block; 7. the anti-falling clamp piece; 8. a bump; 9. a cover plate; 10. a central bus bar; 11. fusing the fuse; 12. an inner cavity; 13. a groove; 14. rectangular pull grooves; 15. a spring chamber; 16. a right trapezoid telescopic fixture block; 17. a side card slot; 18. a rectangular pull block; 19. shifting blocks; 20. electric core subassembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, the present invention provides a technical solution: a high-safety performance module comprises a shell assembly and a cell assembly 20 arranged inside the shell assembly, wherein the shell assembly comprises a first shell 1 and a second shell 2 which are welded and fixed together, a cover plate 9 is arranged at the end part of the cell assembly 20, end plates 3 are arranged at two ends of the shell assembly, an inner cavity 12 is formed in the inner side surface of each end plate 3 and is used for filling a self-foaming filler subsequently, so that busbar short circuit is prevented under extreme working conditions such as extrusion, collision and impact, the danger of ignition and explosion caused by damage to a battery is avoided, a central busbar 10 is arranged on the surface of the cover plate 9, the central busbar 10 comprises two side row pieces, two fusing fuses 11 are fixed between the two side row pieces, the fusing fuses 11 can be installed in a mode such as welding and bolts, and can also be designed into a busbar with self-fuse through calculation, thereby effectively guarantee the module when using under the non-standard operating mode, in time the circuit cuts off, the protection battery, protection personnel safety, a plurality of glue injection holes 4 have all been seted up to the top surface and the bottom surface of shell subassembly, an embedment for follow-up heat conduction structure is glued, thereby carry out the embedment that the heat conduction structure was glued at the lower bottom surface of battery module and last top surface, effectual with the inside heat conduction of module on the shell, reduce the difference in temperature and improve battery system's cycle life, two exhaust holes 5 have all been seted up to the top surface and the bottom surface of shell subassembly.

Example 2

Referring to fig. 1 to 7, the present invention provides a technical solution: a high-safety performance module comprises a shell assembly and a cell assembly 20 arranged inside the shell assembly, wherein the shell assembly comprises a first shell 1 and a second shell 2 which are welded and fixed together, a cover plate 9 is arranged at the end part of the cell assembly 20, end plates 3 are arranged at two ends of the shell assembly, an inner cavity 12 is formed in the inner side surface of each end plate 3 and is used for filling a self-foaming filler subsequently, so that busbar short circuit is prevented under extreme working conditions such as extrusion, collision and impact, the danger of ignition and explosion caused by damage to a battery is avoided, a central busbar 10 is arranged on the surface of the cover plate 9, the central busbar 10 comprises two side row pieces, two fusing fuses 11 are fixed between the two side row pieces, the fusing fuses 11 can be installed in a mode such as welding and bolts, and can also be designed into a busbar with self-fuse through calculation, thereby effectively guarantee the module when using under the non-standard operating mode, in time the circuit cuts off, the protection battery, protection personnel safety, a plurality of glue injection holes 4 have all been seted up to the top surface and the bottom surface of shell subassembly, an embedment for follow-up heat conduction structure is glued, thereby carry out the embedment that the heat conduction structure was glued at the lower bottom surface of battery module and last top surface, effectual with the inside heat conduction of module on the shell, reduce the difference in temperature and improve battery system's cycle life, two exhaust holes 5 have all been seted up to the top surface and the bottom surface of shell subassembly.

In this embodiment, preferably, the top surface and the bottom surface of shell subassembly all are provided with two anticreep fastener 7, and the surface of first casing 1 and second casing 2 all welds the rectangular block 6 corresponding with anticreep fastener 7, and the both ends of anticreep fastener 7 all seted up with the rectangular notch that rectangular block 6 is corresponding for anticreep fastener 7 can play good anticreep effect to first casing 1 and second casing 2.

In this embodiment, preferably, the top surfaces of the two anti-falling-off clamping pieces 7 are welded with the convex blocks 8, and the bottom surfaces of the other two anti-falling-off clamping pieces 7 are provided with the grooves 13 matched with the convex blocks 8, so that a plurality of battery modules can be easily stacked up and down.

In this embodiment, preferably, a clamping connection mechanism is arranged between the end of the anti-falling clamping piece 7 and the rectangular block 6, the clamping connection mechanism includes a right trapezoid expansion clamping block 16 arranged inside the rectangular notch, and a side clamping groove 17 corresponding to the right trapezoid expansion clamping block 16 is formed in one side surface of the rectangular block 6, so that the end of the anti-falling clamping piece 7 can be smoothly clamped and connected with the rectangular block 6.

In this embodiment, preferably, the bottom end of the right trapezoid telescopic clamping block 16 is connected to the spring chamber 15 through a spring, and the bottom end of the spring chamber 15 is disposed inside the anti-falling clamping piece 7, so that the top end of the right trapezoid telescopic clamping block 16 can be gradually squeezed into the spring chamber 15 when being squeezed by an external object.

In this embodiment, preferably, the rectangular pull block 18 is welded on the surface of the bottom end of the right trapezoid telescopic clamping block 16, two rectangular pull grooves 14 corresponding to the rectangular pull block 18 are formed in the top surface of the anti-falling clamping element 7, the top end of the rectangular pull block 18 penetrates through the rectangular pull grooves 14, and the dial block 19 is welded on the surface of the top end of the rectangular pull block 18, so that the anti-falling clamping element 7 is easy to disassemble and assemble.

In this embodiment, preferably, the bottom end of the rectangular pull groove 14 is provided with a through hole corresponding to the rectangular pull block 18, and the through hole is communicated with the spring chamber 15, so that the rectangular pull block 18 can be pulled smoothly.

The utility model discloses a theory of operation and use flow: the high-safety performance module can prevent the short circuit of the central bus bar 10 under the extreme working conditions of extrusion, collision, impact and the like by processing the self-foaming filling agent in the inner cavity 12, avoid the dangerous conditions of fire and explosion caused by the damage of the battery, isolate air by filling treatment, inhibit the spread of thermal runaway and effectively improve the electrical safety of the battery module, and simultaneously carry out the encapsulation of heat-conducting structural adhesive on the lower bottom surface and the upper top surface of the battery module through the adhesive injection hole 4, can effectively conduct the heat in the module to the shell component, reduce the temperature difference of the module in the operation and improve the cycle life of a battery system, and add a fusing design to the central bus bar 10, thereby effectively ensuring that when the battery module is used under the non-standard working conditions, the circuit is cut off in time, the battery is protected, the safety of personnel is protected, and when the fusing fuse 11 is added to the central bus bar 10, compared with the positive electrode and the negative electrode, the protection circuit has the advantages that the influence of an external bus bar can be eliminated, and the interference of other contact resistors is avoided, so that the circuit protection and the fusing can be more accurately carried out;

when the first shell 1 and the second shell 2 are welded to form a shell component, an operator can install the anti-falling clamping piece 7 with the convex blocks 8 on two surfaces on the top surface of the shell component, only the rectangular notch at the end part of the anti-falling clamping piece 7 needs to be aligned with the rectangular block 6 during installation, and the anti-falling clamping piece 7 is pushed to the surface of the shell component forcibly, so that the rectangular block 6 can be gradually inserted into the rectangular notch, and the rectangular block 6 can gradually squeeze the top end of the right trapezoid telescopic clamping block 16 into the spring chamber 15 until the anti-falling clamping piece 7 is smoothly attached to the shell component, and at the moment, the top end of the right trapezoid telescopic clamping block 16 is clamped into the side clamping groove 17 under the action of the spring inside the spring chamber 15, so that the clamping connection of the anti-falling clamping piece 7 and the rectangular block 6 is completed, and the two ends of the anti-falling clamping piece 7 can be respectively clamped and, then, the other two anti-falling clamps 7 with the grooves 13 on the surfaces are arranged on the bottom surface of the shell component by the same method, under the action of the four anti-falling clamps 7, even if the welding part of the first shell 1 and the second shell 2 is broken in the subsequent use process, the anti-falling clamps 7 can clamp the first shell 1 and the second shell 2 together, thereby having good anti-falling function, meanwhile, when a plurality of battery modules are stacked up and down for storage, an operator can align the grooves 13 at the bottom of the upper battery module with the bumps 8 at the top of the lower battery module, then place the upper battery module at the top of the lower battery module, and enable the bumps 8 to be inserted into the grooves 13, thereby enabling the two battery modules stacked up and down to be placed more stably without easily side turning, and when the subsequent operator needs to detach the anti-falling clamps 7 from the surface of the shell component, only need to dial 19 power side of the inside shifting block of rectangle kerve 14, cause the rectangle to draw the top of the flexible fixture block 16 of right trapezoid into the inside of spring chamber 15 with the piece 18 that draws to it is spacing no longer to anticreep fastener 7, operating personnel can directly pull down anticreep fastener 7 from shell subassembly surface this moment, makes anticreep fastener 7 easily dismouting.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high security performance module, includes shell subassembly and sets up electric core subassembly (20) inside the shell subassembly, the shell subassembly comprises welded fastening first casing (1) and second casing (2) together, the tip of electric core subassembly (20) is provided with apron (9), the both ends of shell subassembly all are provided with end plate (3), its characterized in that: inboard cavity (12) have been seted up to the inboard surface of end plate (3), the surface of apron (9) is provided with central busbar (10), and central busbar (10) include two side row spare, two be fixed with two fusing fuses (11) between the side row spare, a plurality of notes gluey hole (4) have all been seted up to the top surface and the bottom surface of shell subassembly, two exhaust hole (5) have all been seted up to the top surface and the bottom surface of shell subassembly.

2. A high security module in accordance with claim 1, wherein: the top surface and the bottom surface of shell subassembly all are provided with two anticreep fastener (7), the surface of first casing (1) and second casing (2) all is provided with rectangular block (6) corresponding with anticreep fastener (7), and the both ends of anticreep fastener (7) all seted up the rectangle breach corresponding with rectangular block (6).

3. A high security module according to claim 2, wherein: the top surfaces of the two anti-falling clamping pieces (7) are fixed with bumps (8), and the bottom surfaces of the other two anti-falling clamping pieces (7) are provided with grooves (13) matched with the bumps (8).

4. A high security module according to claim 2, wherein: the anti-falling clamping piece is characterized in that a clamping connection mechanism is arranged between the end portion of the anti-falling clamping piece (7) and the rectangular block (6), the clamping connection mechanism comprises a right trapezoid telescopic clamping block (16) arranged on the inner side of the rectangular notch, and a side clamping groove (17) corresponding to the right trapezoid telescopic clamping block (16) is formed in one side surface of the rectangular block (6).

5. A high security module in accordance with claim 4, wherein: the bottom end of the right trapezoid telescopic clamping block (16) is connected with a spring chamber (15), and the bottom end of the spring chamber (15) is arranged inside the anti-falling clamping piece (7).

6. A high security module in accordance with claim 4, wherein: the bottom end surface of the right trapezoid telescopic clamping block (16) is fixed with a rectangular pulling block (18), the top surface of the anti-falling clamping piece (7) is provided with two rectangular pulling grooves (14) corresponding to the rectangular pulling block (18), the top end of the rectangular pulling block (18) penetrates through the rectangular pulling grooves (14), and the top end surface of the rectangular pulling block (18) is provided with a shifting block (19).

7. A high security module in accordance with claim 6, wherein: the bottom end of the rectangular pull groove (14) is provided with a through hole corresponding to the rectangular pull block (18), and the through hole is communicated with the spring chamber (15).