CN206471403U - A kind of battery modules - Google Patents

Abstract

A battery module, comprising a plurality of single cells, a plurality of fixing seats, a plurality of connectors, a plurality of manifolds, a collector plate, and a plurality of fixers; the two ends of the single cells respectively form raised positive poles and the negative pole; the fixing base includes a top surface and a bottom surface opposite to the top surface, and a storage unit matching with one end of the single battery is formed on the top surface; the connecting piece includes a connecting end and a connecting A plurality of stitches formed by extending the end to one side; the manifold includes a first manifold and a second manifold; the connectors are arranged on both sides of the first manifold and on one side of the second manifold side and one side of the collector plate. The battery module of this new type uses a plastic fixing seat to fix the single battery. The two ends of the single battery do not need to be welded, so the operation is simple and the weight is reduced; the riveted copper connector on the manifold has strong conductivity; the module is fixed by a screw , reliable structure and easy maintenance.

Description

A battery module

【Technical field】

The utility model relates to the technical field of electric vehicles, in particular to a battery module.

【Background technique】

With the country's vigorous promotion and popularization of electric vehicles, the development of power batteries is also in full swing. Power battery is one of the core energy storage devices of electric vehicles. In order to achieve the voltage and power required by electric vehicles, multiple single cells are usually connected in parallel to form a battery pack, and then multiple battery packs are connected in series to form a battery module. At present, the battery module is usually fixed by welding nickel sheets or screws on the single battery. The positive and negative electrodes of each single battery need to be welded. The process is complicated, time-consuming and costly; the welding parts are nickel or iron, which have poor conductivity; It is relatively heavy, which is not conducive to improving the energy density of the battery module; the follow-up maintenance of the module is inconvenient, difficult and time-consuming to disassemble, and the single battery may be damaged.

【Content of utility model】

The purpose of the utility model is to provide a battery module with simple operation, light weight, strong conductivity, reliable structure and convenient maintenance.

In order to achieve the above purpose, the utility model provides a battery module, which includes a plurality of single cells, a plurality of fixing seats, a plurality of connectors, a plurality of manifolds, a plurality of collectors and a plurality of fixers; Protruding positive and negative electrodes are respectively formed at both ends of the battery; the fixing seat includes a top surface and a bottom surface opposite to the top surface, and a receiving unit matching with one end of the single battery is formed on the top surface; The connector includes a connection end and a plurality of pins extending from the connection end to one side, the connection end is a hollow structure and is matched with the positive electrode and the negative electrode; the manifold includes a first manifold and The second manifold; the connectors are arranged on both sides of the first manifold, one side of the second manifold and one side of the collector; a plurality of the single cells and each two Two fixing seats form a battery pack, the two ends of the single battery are respectively accommodated in the accommodation units of the two fixing seats, and the positive or negative poles of the single battery abut against the pins of the connector and are stored in the two fixing seats. In the connecting end, the first manifold is arranged between the two battery packs, and the second manifold is provided with one side of the connector abutting against the fixing seat at one end of the battery module. On the bottom surface, the fixing member passes through the fixing seat and the second manifold to fix the battery module.

In a preferred embodiment, each housing unit is provided with a perforation through the top surface and the bottom surface; the first manifold includes a first surface and a second surface opposite to the first surface , the first manifold is provided with a plurality of first holes corresponding to the through holes and matching with the connecting ends, and the connecting ends of the connectors are installed in the first holes by means of pressure riveting Both sides; the second manifold includes a third surface and a fourth surface opposite to the third surface, and a plurality of holes corresponding to the through holes and opposite to the connecting end are opened on the second manifold. The second hole fits, and the connecting end of the connecting piece is mounted on the third surface by pressure riveting.

In a preferred embodiment, the fixing seat is symmetrical about the axis and forms a symmetrical first area and a second area; the current collecting plate includes a positive electrode current collecting plate and a negative electrode current collecting plate; the positive electrode current collecting plate There is a third hole corresponding to the perforation in the first area, the third hole is matched with the connection end, and the connection end of the connector is installed in the third hole by pressing riveting. One side and both are located on the same side of the positive current collector plate; the negative current collector plate is provided with a fourth hole corresponding to the perforation in the second area, and the fourth hole is connected to the connecting end Matching, the connecting end of the connector is mounted on one side of the fourth hole by pressure riveting and is located on the same side of the negative electrode current collector.

In a preferred embodiment, it also includes two insulating plates and two fixing plates; the third surface of the second bus plate is attached to the bottom surface of the fixing seat at one end of the battery module, and one of the insulating plates is attached to On the fourth surface of the second manifold, one of the fixing plates is attached to the side of the insulating plate away from the second manifold, and the side of the positive collector plate with the connector is attached to the In the first area of the fixing seat at the other end of the battery module, the side of the negative electrode current collecting plate with the connector is attached to the second area of the fixing seat, and the other insulating plate is attached to the positive electrode current collecting plate. plate and the negative electrode current collecting plate away from the side of the fixing seat, and another fixing plate is attached to the side of the insulating plate away from the positive electrode current collecting plate and the negative electrode current collecting plate.

In a preferred embodiment, the edge of the top surface is formed with a plurality of installation holes passing through the top surface and the bottom surface; the second manifold is provided with a plurality of matching holes corresponding to the installation holes; The insulating plate is provided with an insulating plate hole corresponding to the installation hole and the matching hole; the fixing plate is provided with a fixing hole corresponding to the installation hole and the matching hole; the fixing member is sequentially Passing through the fixing hole of one of the fixing plates, the insulating plate hole of one of the insulating plates, the mounting hole, the matching hole, the insulating plate hole of the other insulating plate and the fixing hole of the other fixing plate, the battery mold Group fixed.

Compared with the prior art, the battery module of the present invention uses a plastic fixing seat to fix the single battery, and the two ends of the single battery do not need to be welded, so the operation is simple and the weight is reduced; Strong; the module is fixed by the screw, the structure is reliable, and the maintenance is convenient.

【Description of drawings】

Fig. 1 is a perspective view of a battery module provided by an embodiment of the present invention.

Fig. 2 is a perspective view of the battery pack of the battery module provided by the embodiment of the present invention.

Fig. 3 is a front view of the battery pack of the battery module provided by the embodiment of the present invention.

Fig. 4 is a first perspective view of the first manifold of the battery module provided by the embodiment of the present invention.

Fig. 5 is a second perspective view of the first manifold of the battery module provided by the embodiment of the present invention.

Fig. 6 is a third perspective view of the first manifold of the battery module provided by the embodiment of the present invention.

Fig. 7 is a first perspective view of the second manifold of the battery module provided by the embodiment of the present invention.

Fig. 8 is a second perspective view of the second manifold of the battery module provided by the embodiment of the present invention.

Fig. 9 is a front view of the current collector of the battery module provided by the embodiment of the present invention.

Fig. 10 is a front view of a single battery of the battery module provided by the embodiment of the present invention.

【detailed description】

In order to make the purpose, technical solutions and beneficial technical effects of the utility model clearer, the technical solutions in the implementation of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the implementation of the utility model. Obviously, all The described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, a battery module 100 provided by the present invention includes a plurality of single cells 10, a plurality of fixing seats 20, a plurality of connectors 30, a plurality of manifolds 40, a manifold 50, a plurality of A fixing piece 60, two insulating plates 70 and two fixing plates 80.

As shown in FIG. 2 and FIG. 10 , the single battery 10 is a cylindrical lithium battery with protruding positive electrodes 11 and negative electrodes 12 respectively formed at both ends. A plurality of single cells 10 and every two fixing seats 20 form a battery pack 101 .

Please also refer to FIG. 3 , the fixing seat 20 is made of plastic material. The fixing seat 20 is substantially rectangular and includes a top surface 21 and a bottom surface 22 opposite to the top surface 21 . A receiving unit 23 matching with one end of the single battery 10 is formed on the top surface 21 . Each receiving unit 23 defines a through hole 24 penetrating through the top surface 21 and the bottom surface 22 . The edge of the top surface 21 is formed with a plurality of mounting holes 25 penetrating through the top surface 21 and the bottom surface 22. The receiving unit 23 includes a side wall 231 , and the fixing base 20 also includes a side edge 26 . The side 26 is surrounded by side walls 231 of the receiving unit 23 distributed on the edge of the top surface 21 . The fixing base 20 is also provided with a plurality of first cooling holes 27. The fixing seat 20 is symmetrical about the axis and forms a symmetrical first area 28 and a second area 29 .

As shown in FIGS. 5 and 7 , the connector 30 includes a connecting end 31 and a plurality of pins 32 extending from the connecting end 31 to one side. The pins 32 are evenly spaced on one side of the connecting end 31 . The connecting end 31 is hollow and matched with the positive electrode 11 and the negative electrode 12 . In this embodiment, the connectors 30 are made of copper, and each connector 30 includes twelve pins 32 .

As shown in FIG. 1 , FIG. 4 and FIG. 7 , the manifold 40 includes a first manifold 41 and a second manifold 42 . The connector 30 is arranged on both sides of the first manifold 41, one side of the second manifold 42 and one side of the collector 50; the first manifold 41 is arranged on the Between the two battery packs 101, the side of the second manifold 42 provided with the connector 30 abuts against the bottom surface 22 of the fixing seat 20 at one end of the battery module 100, and the fixing member 60 passes through The fixing seat 20 and the second manifold 42 fix the battery module 100 .

Please refer to FIG. 5 and FIG. 6 at the same time, the first manifold 41 is a structure corresponding to the side 26 . The first manifold 41 includes a first surface 411 and a second surface 412 opposite to the first surface 411 . The first manifold 41 defines a plurality of first holes 413 corresponding to the through holes 24 and matching with the connecting ends 31 . The first hole 413 runs through the first surface 411 and the second surface 412 . The connecting end 31 of the connecting piece 30 is mounted on both sides of the first hole 413 by pressure riveting, that is, each first hole 413 is equipped with two connecting pieces 30, and the connecting pieces 30 are respectively arranged on the two sides of the first hole 413. The first surface 411 and the second surface 412 . A second heat dissipation hole 414 corresponding to the first heat dissipation hole 27 is defined on the first manifold 41 . The distribution of the first holes 413 and the second cooling holes 414 on the first manifold 41 is symmetrical about the axis.

Please also refer to FIG. 8 , the second manifold 42 is a rectangular structure corresponding to the fixing seat 20 . The second manifold 42 includes a third surface 421 and a fourth surface 422 opposite to the third surface 421 . A plurality of second holes 423 corresponding to the through holes 24 and matching with the connecting ends 31 are opened on the second manifold 42 . The second hole 423 runs through the third surface 421 and the fourth surface 422 . The connecting end 31 of the connecting piece 30 is installed on one side of the second hole 423 by pressure riveting and is all located on the third surface 421, and each second hole 423 is equipped with a connecting piece 30. A plurality of third heat dissipation holes 424 corresponding to the first heat dissipation holes 27 and a plurality of matching holes 425 corresponding to the installation holes 25 are opened on the second manifold 42 . The distribution of the second holes 423, the third cooling holes 424 and the matching holes 425 on the second manifold 42 is symmetrical about the axis.

As shown in FIG. 1 and FIG. 9 , the current collector plate 50 includes a positive electrode current collector plate 51 and a negative electrode current collector plate 52 .

A third hole 511 and a fourth heat dissipation hole 512 respectively corresponding to the through hole 24 and the first heat dissipation hole 27 in the first region 28 are opened on the positive electrode current collector 51 . The third hole 511 matches with the connecting end 31 . The connecting end 31 of the connecting member 30 is mounted on one side of the third hole 511 by means of pressure riveting and is located on the same side of the positive electrode current collector 51 .

A fourth hole 521 and a fifth heat dissipation hole 522 respectively corresponding to the through hole 24 and the first heat dissipation hole 27 in the second region 29 are opened on the negative electrode current collector 52 . The fourth hole 521 matches with the connecting end 31 . The connecting end 31 of the connecting member 30 is mounted on one side of the fourth hole 521 by pressure riveting and is located on the same side of the negative electrode current collector 52 .

The insulation board 70 is provided with an insulation board hole (not shown) corresponding to the installation hole 25 and the matching hole 425 . The fixing plate 80 defines a fixing hole 81 corresponding to the installation hole 25 and the matching hole 425 . The installation hole 25 , the matching hole 425 , the insulating plate hole and the fixing hole 81 are all matched with the fixing member 60 . In other embodiments, the battery module 100 may not need the insulating plate 70 and the fixing plate 80 .

When assembling, the connector 30 is first pressure riveted to the first surface 411 and the second surface 412 of the first manifold 41, the third surface 421 of the second manifold 42, and the positive current collector. plate 51 and the negative current collector plate 52; then place the single battery 10 between the two fixing seats 20, the positive pole 11 or negative pole 12 of the single battery 10 and the pin of the connector 30 32 are abutted against and accommodated in the connecting end 31, thereby forming a battery pack 101; then the first manifold 41 is arranged between the two battery packs 101, wherein the first surface 411 abuts against one The bottom surface 22 of the fixing seat 20 of the battery pack 101, the second surface 412 is attached to the bottom surface 22 of the fixing seat 20 of another battery pack 101, and assembled accordingly until the battery module 100 reaching the required voltage and power requirements; finally the The third surface 421 of the second manifold 42 is attached to the bottom surface 22 of the fixing seat 20 at one end of the battery module 100 , and one insulating plate 70 is attached to the fourth surface 422 of the second manifold 42 , one of the fixing plates 80 is attached to the side of the insulating plate 70 away from the second manifold 42, and then the side of the positive current collector 51 equipped with the connector 30 is attached to the battery module. The first area 28 of the fixing seat 20 at the other end of the group 100, the side of the negative current collector plate 52 with the connector 30 is attached to the second area 29 of the fixing seat 20, and the other insulating plate 70 is attached to the second area 29 of the fixing seat 20. The positive electrode current collector 51 and the negative electrode current collector 52 are away from the side of the fixing seat 20, and the other fixed plate 80 is attached to the insulating plate 70 away from the positive electrode current collector 51 and the negative electrode. One side of the current collecting plate 52, use the fixing member 60 to pass through the fixing hole 81 of one of the fixing plates 80, the insulating plate hole of one of the insulating plates 70, the mounting hole 25, the matching hole 425, and the other insulating plate. The insulating plate hole of the plate and the fixing hole 81 of another fixing plate 80 fix the battery module 100 .

Compared with the prior art, the battery module of the present invention uses a plastic fixing seat to fix the single battery, and the two ends of the single battery do not need to be welded, so the operation is simple and the weight is reduced; Strong; the module is fixed by the screw, the structure is reliable, and the maintenance is convenient.

The utility model is not limited to the description in the description and the implementation, so those skilled in the art can easily realize additional advantages and modifications, so without departing from the spirit and the general concept defined by the claims and the equivalent scope Without limitation, the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein.

Claims (5)

1. A battery module, characterized in that: it includes a plurality of single cells, a plurality of fixing seats, a plurality of connectors, a plurality of manifolds, a collector plate and a plurality of fixers; Protruding positive poles and negative poles are respectively formed; the fixing seat includes a top surface and a bottom surface opposite to the top surface, and a receiving unit matching with one end of the single battery is formed on the top surface; the connector It includes a connection end and a plurality of pins extending from the connection end to one side, the connection end is a hollow structure and is matched with the positive electrode and the negative electrode; the manifold includes a first manifold and a second manifold plate; the connectors are arranged on both sides of the first manifold, one side of the second manifold and one side of the collector; a plurality of the single cells and every two fixing seats To form a battery pack, the two ends of the single battery are respectively accommodated in the accommodation units of the two fixing seats, and the positive pole or the negative pole of the single battery abuts against the pins of the connector and is accommodated at the connecting end Inside, the first manifold is arranged between the two battery packs, and the side of the second manifold on which the connecting piece is disposed abuts against the bottom surface of the fixing seat at one end of the battery module, so The fixing member passes through the fixing seat and the second manifold to fix the battery module. 2. The battery module as claimed in claim 1, wherein: each housing unit is provided with a through hole penetrating through the top surface and the bottom surface; the first manifold includes a first surface and a The second surface opposite to the first surface, the first manifold is provided with a plurality of first holes corresponding to the through holes and matching with the connecting end, the connecting end of the connector is riveted installed on both sides of the first hole; the second manifold includes a third surface and a fourth surface opposite to the third surface, and the second manifold is provided with a plurality of holes corresponding to The second hole is pierced and matched with the connecting end, and the connecting end of the connecting piece is mounted on the third surface by pressure riveting. 3. The battery module according to claim 2, characterized in that: the fixing seat is symmetrical about the axis and forms a symmetrical first area and a second area; the current collecting plate includes a positive electrode current collecting plate and a negative electrode collecting plate. A flow plate; a third hole corresponding to the perforation in the first region is opened on the positive electrode current collector, the third hole is matched with the connection end, and the connection end of the connector is riveted installed on one side of the third hole and are located on the same side of the positive collector plate; the negative collector plate is provided with a fourth hole corresponding to the perforation in the second area, so The fourth hole is matched with the connection end, and the connection end of the connector is mounted on one side of the fourth hole by pressure riveting and is located on the same side of the negative electrode current collector. 4. The battery module according to claim 3, characterized in that: it further comprises two insulating plates and two fixing plates; the third surface of the second bus plate is attached to the fixing plate at one end of the battery module. The bottom surface of the seat, one of the insulating plates is attached to the fourth surface of the second manifold, one of the fixing plates is attached to the side of the insulating plate away from the second manifold, and the positive current collector The side on which the connecting piece is installed is attached to the first area of the fixing seat at the other end of the battery module, the side of the negative current collector plate equipped with the connecting piece is attached to the second area of the fixing seat, and the other side is attached to the second area of the fixing seat. The insulating plate is attached to the side of the positive electrode current collector and the negative electrode current collector away from the fixing seat, and the other fixed plate is attached to the insulating plate away from the positive electrode current collector and the negative electrode collector. side of the flow plate. 5 . The battery module according to claim 4 , wherein: the edge of the top surface is formed with a plurality of installation holes penetrating the top surface and the bottom surface; A plurality of matching holes for the mounting holes; insulating plate holes corresponding to the mounting holes and the matching holes are provided on the insulating plate; holes corresponding to the mounting holes and the matching holes are provided on the fixing plate The fixing hole of the hole; the fixing member passes through the fixing hole of one of the fixing plates, the insulating plate hole of one of the insulating plates, the mounting hole, the matching hole, the insulating plate hole of the other insulating plate and the other The fixing holes of the fixing plate fix the battery module.