CN206471365U - A kind of battery module structure - Google Patents

Abstract

The utility model provides a battery module structure, which includes a battery assembly, a manifold assembly and a heat dissipation assembly; the battery assembly includes several single cells, and all the single cells are arranged side by side with gaps between adjacent single cells. Gap; the manifold assembly includes a first manifold and a second manifold, and the first manifold and the second manifold are respectively arranged at both ends of the battery assembly; the heat dissipation assembly includes a heat dissipation plate, a heat conducting glue and a cooling plate, the heat dissipation plate includes a heat dissipation plate body located on the side of the second manifold away from the battery assembly and a plurality of heat dissipation pipes arranged on the heat dissipation plate body perpendicular to the heat dissipation plate body, and the heat dissipation pipes pass through The second manifold, the heat pipes are located in the gaps between the single cells, the cooling plate is fixed on the heat sink body, and the thermal conductive glue is arranged on the heat sink body and the cooling plate body. between the boards, and the thermally conductive glue adheres to the heat sink body.

Description

A battery module structure

【Technical field】

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

【Background technique】

With the increasingly severe energy crisis, the new energy industry dominated by electricity is developing rapidly. The power battery module is one of the core energy storage devices of various electronic products. When the battery module is working, the internal temperature of the module is prone to be too high, which will lead to the degradation of the overall performance of the battery module and the shortening of the service life.

Most existing battery modules use passive heat dissipation, active air cooling and active liquid cooling for heat dissipation. The effect of passive heat dissipation is very poor, which cannot guarantee battery performance; active air cooling will affect the waterproofness of the entire battery module, and the flow of air is easily blocked, making it difficult to ensure the consistency of cooling effects in various areas, and the heat that can be removed is also limited. Relatively limited; the structure adopted by active liquid cooling is relatively complicated, not easy to manufacture, and there are certain requirements for the selection of cooling liquid, thus increasing its manufacturing cost.

In view of this, it is necessary to provide a new battery module structure to overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide a battery module structure with uniform heat dissipation inside the battery module, good heat dissipation effect, simple structure and easy production.

In order to achieve the above purpose, the utility model provides a battery module structure, including a battery assembly, a manifold assembly and a heat dissipation assembly; the battery assembly includes several single cells, all of which are arranged side by side and adjacent There is a gap between the bulk batteries; the manifold assembly includes a first manifold and a second manifold, and the first manifold and the second manifold are respectively arranged at both ends of the battery assembly; the heat dissipation assembly includes heat dissipation plate, thermal conductive glue and cooling plate, the heat dissipation plate includes a heat dissipation plate body located on the side of the second manifold away from the battery assembly and a plurality of heat dissipation pipes arranged on the heat dissipation plate body perpendicular to the heat dissipation plate body, so The heat dissipation pipe passes through the second manifold, the heat dissipation pipe is located in the gap between the single batteries, the cooling plate is fixed on the heat dissipation plate body, and the thermal conductive glue is arranged on the heat dissipation plate between the main body and the cooling plate, and the thermal conductive adhesive is adhered to the main body of the cooling plate.

In a preferred embodiment, the heat dissipation plate body is in the shape of a rectangular flat plate, and the cross section of the heat dissipation pipes is in the shape of an oblong hole, and are arranged on the heat dissipation plate body at intervals.

In a preferred embodiment, the heat dissipation plate is further provided with a limiting block, and the limiting block is fixed on the heat dissipation plate body and abuts against one end of a part of the heat dissipation pipe connected to the heat dissipation plate body.

In a preferred embodiment, two limiting blocks are respectively provided on both sides of the heat dissipation pipe, and the two limiting blocks form a cross shape with one end of the heat dissipation pipe.

In a preferred embodiment, the cooling plate is a rectangular plate structure, and cooling water pipes are arranged in the cooling plate.

In a preferred embodiment, the battery assembly further includes an upper base and a lower base, the upper base and the lower base are in the shape of a cuboid, and the upper base is provided with several through-holes, so The lower base is provided with several through-holes, and the two ends of each single battery are accommodated in the upper through-holes of the upper base and the lower through-holes of the lower base respectively.

In a preferred embodiment, the single battery is cylindrical, the upper through hole and the lower through hole are circular, and the diameters of the upper through hole and the lower through hole correspond to the diameter of the single battery .

In a preferred embodiment, the first manifold is fixed on the upper base, and one end of the single battery close to the upper base is electrically connected to the first manifold; Two manifolds are fixed on the lower base, and one end of the single battery close to the lower base is electrically connected to the second manifold.

In a preferred embodiment, it also includes an upper cover plate and a lower cover plate, the upper cover plate is arranged on the first manifold, and the lower cover plate is arranged between the second manifold and the cooling plate The lower cover plate is provided with a penetrating oblong hole through which the heat dissipation pipe passes, and the lower cover plate is also provided with a cross-shaped hole for accommodating the limiting block.

In a preferred embodiment, the thermally conductive adhesive is thermally conductive silica gel.

Compared with the prior art, in the battery module structure provided by the utility model, the heat dissipation pipe of the heat dissipation component is located in the gap between the single batteries, and the heat of the heat dissipation plate body is collected by the heat conducting glue and transferred to the cooling plate, so that the battery The heat generated by the components dissipates quickly and evenly; the body of the heat sink and the heat pipe are integrally formed, which has a simple structure and is easy to produce.

【Description of drawings】

Fig. 1 is a three-dimensional exploded schematic diagram of the battery module structure provided by the present invention;

FIG. 2 is a schematic structural view of a battery assembly of the battery module structure shown in FIG. 1;

FIG. 3 is a structural schematic diagram of a heat dissipation plate of the battery module structure shown in FIG. 1;

FIG. 4 is a schematic structural view of the lower cover plate of the battery module structure shown in FIG. 1;

FIG. 5 is a schematic diagram of a partial assembly structure of the battery module structure shown in FIG. 1 .

【detailed description】

In order to make the purpose, technical solution and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

Please refer to FIG. 1 and FIG. 2 , the present invention provides a battery module structure 100 , including a battery assembly 10 , a manifold assembly 20 and a heat dissipation assembly 30 .

The battery assembly 10 includes several single cells 11, the single cells 11 are cylindrical, the single cells 11 include side walls 111, all the single cells 11 are arranged side by side and the adjacent single cells 11 There is a gap between the sidewalls 111. Specifically, the positive poles of all the unit batteries 11 face the same direction.

The battery assembly 10 also includes an upper base 12 and a lower base 13, the upper base 12 and the lower base 13 are in the shape of a cuboid, and the upper base 12 is provided with a plurality of upper through holes 121 through which the The lower base 13 is also provided with several through-holes 131 and through-holes 132, and the two ends of each single battery 11 are respectively accommodated in the upper through-hole 121 of the upper base 12 and the lower through-hole of the lower base 13. Inside the hole 131 , that is, the upper base 12 and the lower base 13 are respectively disposed at two ends of the single battery 11 . Specifically, the upper through hole 121 and the lower through hole 131 are circular, and the diameters of the upper through hole 121 and the lower through hole 131 correspond to the diameter of the single battery 11 . Specifically, both the upper base 12 and the lower base 13 are insulating polymer composite materials with high thermal conductivity.

The manifold assembly 20 includes a first manifold 21 and a second manifold 22 , and the first manifold 21 and the second manifold 22 are respectively disposed at two ends of the battery assembly 10 . Specifically, the first manifold 21 is fixed on the upper base 12 and is located on the opposite side of the single battery 11, and one end of the single battery 11 close to the upper base 12 passes through The upper through hole 121 is electrically connected to the first manifold 21; the second manifold 22 is fixed on the lower base 13 and is located on the side opposite to the single battery 11, and the single battery An end of 11 close to the lower base 13 is electrically connected to the second bus plate 22 through the lower through hole 131 . Specifically, the second manifold 22 is also provided with through-through cooling holes 221 , and the cooling holes 221 are in the shape of oblong holes. In this embodiment, the end of the single battery 11 close to the upper base 12 is the positive pole of the single battery 11, and the first manifold 21 is a positive pole manifold; the end of the single battery 11 close to the One end of the lower base 13 is the negative pole of the single battery 11 , and the second manifold 22 is the negative pole manifold.

The heat dissipation assembly 30 includes a heat dissipation plate 31 , a thermal conductive glue 32 and a cooling plate 33 .

Please refer to FIG. 3 together. The heat dissipation plate 31 includes a heat dissipation plate body 311 and a plurality of heat dissipation pipes 312 arranged on the heat dissipation plate body 311 perpendicular to the heat dissipation plate body 311. The heat dissipation pipes 312 pass through the second confluence. The heat dissipation holes 221 of the plate 22 and the through holes 132 of the lower base 13 , the heat dissipation pipes 312 are located in the gaps between the single cells 11 . The heat dissipation plate body 311 is in the shape of a rectangular flat plate, and the cross-section of the heat dissipation pipes 312 is in the shape of oblong holes, and are arranged at intervals on the heat dissipation plate body 311. The heat dissipation pipes 312 in the shape of oblong holes are conducive to improving space utilization. , and the cooling effect is better.

Specifically, the heat dissipation plate 31 is further provided with a limiting block 313 , the limiting block 313 is fixed on the heat dissipation plate body 311 and leans against one end of a part of the heat dissipation pipe 312 connected to the heat dissipation plate body 311 . In this embodiment, two limiting blocks 313 are respectively provided on both sides of the oblong hole-shaped heat dissipation pipe 312, that is, the two limit blocks 313 and one end of the heat dissipation pipe 312 form a cross shape, which is beneficial to the heat dissipation plate body 311, The positioning of the heat dissipation pipe 312 and the contact of the limiting block 313 with the side wall of one end of the single battery 11 are more conducive to heat dissipation. The heat sink body 311, the heat pipe 312 and the limit block 313 are integrally formed. The heat sink body 311, the heat pipe 312 and the limit block 313 are made of heat pipe material, which has fast temperature uniformity and light weight. The heat pipe is Relying on the phase change of its own internal working liquid to achieve heat transfer, it has a high thermal conductivity.

The cooling plate 33 is a rectangular plate structure and is fixed below the heat sink body 311 . The thermal conductive adhesive 32 is disposed between the heat sink body 311 and the cooling plate 33 , and the thermal conductive adhesive 32 is adhered to the heat sink body 311 . Specifically, the cooling plate 33 is provided with a cooling water pipe (not shown in the figure), and the cooling water pipe is filled with cooling water to further take away the heat generated by the battery assembly; the heat-conducting glue 32 is heat-conducting silica gel.

Please refer to Fig. 4 together, the battery module structure 100 provided by the utility model also includes an upper cover plate 41 and a lower cover plate 42, the upper cover plate 41 is arranged on the first manifold 21, and the lower cover plate 41 The cover plate 42 is disposed between the second manifold 22 and the heat dissipation plate 31 , and the upper cover plate 41 and the lower cover plate 42 further ensure the insulation properties of the battery module structure 100 . Specifically, the lower cover 42 is provided with a through oblong hole 421 through which the heat dissipation pipe 312 passes, and the lower cover 42 is also provided with a cross-shaped hole 422 for accommodating the limiting block 313 .

Please refer to FIG. 5 together. During assembly, firstly, the first manifold 21 and the second manifold 22 are respectively arranged on the two ends of the battery assembly 10; then, the upper cover 41 and the lower cover 42 are respectively fixed. on the first manifold 21 and on the second manifold 22; secondly, the heat sink 31 is arranged on the lower cover 42, and the heat sink body 311 abuts against the lower cover 42, The heat dissipation pipe 312 passes through the lower cover plate 42 and the second manifold 22, and is located in the gap between the single cells 11; finally, attach the thermal conductive adhesive 32 to the heat dissipation plate body 311, and use Long bolts fix the upper cover plate 41 , the first manifold plate 21 , the battery assembly 10 , the second manifold plate 22 , the lower cover plate 42 , the cooling plate 31 , the thermally conductive glue 32 and the cooling plate 33 .

In the battery module structure 100 provided by the utility model, the heat dissipation pipe 312 of the heat dissipation assembly 30 is located in the gap between the single batteries 11, and the heat of the heat dissipation plate body 311 is collected by the heat conduction glue 32 and transmitted to the cooling plate 33, so that the battery The heat generated by the assembly 10 dissipates quickly and evenly; the heat dissipation plate body 311 and the heat dissipation pipe 312 are integrally formed, which has a simple structure and is easy to produce.

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 (10)

1. A battery module structure, characterized in that: it includes a battery assembly, a manifold assembly and a heat dissipation assembly; the battery assembly includes several single cells, all of which are arranged side by side and between adjacent single cells There is a gap between them; the manifold assembly includes a first manifold and a second manifold, and the first manifold and the second manifold are respectively arranged at both ends of the battery assembly; the heat dissipation assembly includes a heat dissipation plate, Thermally conductive glue and a cooling plate, the heat dissipation plate includes a heat dissipation plate body located on the side of the second manifold away from the battery assembly and a plurality of heat dissipation pipes arranged on the heat dissipation plate body perpendicular to the heat dissipation plate body, the heat dissipation pipes Through the second manifold, the heat pipe is located in the gap between the single cells, the cooling plate is fixed on the heat sink body, and the thermal conductive glue is arranged on the heat sink body and the heat sink body. between the cooling plates, and the thermal conductive glue adheres to the heat sink body. 2. The battery module structure according to claim 1, characterized in that: the heat sink body is in the shape of a rectangular flat plate, and the cross section of the heat pipe is in the shape of an oblong hole, and is arranged at intervals on the heat sink body superior. 3. The battery module structure according to claim 2, wherein the heat dissipation plate is further provided with a limiting block, and the limiting block is fixed on the body of the heat dissipation plate and abuts against a part of the connection of the heat dissipation pipe. One end of the heat sink body. 4 . The battery module structure according to claim 3 , wherein two limiting blocks are respectively arranged on both sides of the heat dissipation pipe, and the two limiting blocks form a cross shape with one end of the heat dissipation pipe. 4 . 5 . The battery module structure according to claim 4 , wherein the cooling plate is a rectangular plate structure, and cooling water pipes are arranged inside the cooling plate. 6. The battery module structure according to claim 5, wherein the battery assembly further comprises an upper base and a lower base, the upper base and the lower base are in the shape of a cuboid, and the upper base There are several through-holes on the upper base, and the lower base is opened on the lower through-holes. The two ends of each single battery are accommodated in the upper through-holes of the upper base and the lower base of the lower base inside the through hole. 7. The battery module structure according to claim 6, wherein the single battery is cylindrical, the upper through hole and the lower through hole are circular, and the upper through hole and the lower through hole The diameter corresponds to the diameter of the single battery. 8. The battery module structure according to claim 7, wherein the first manifold is fixed on the upper base, and one end of the single battery close to the upper base is connected to the first A bus board is electrically connected; the second bus board is fixed on the lower base, and one end of the single battery close to the lower base is electrically connected to the second bus board. 9. The battery module structure according to claim 8, further comprising an upper cover plate and a lower cover plate, the upper cover plate is set on the first manifold, and the lower cover plate is set on the Between the second manifold and the heat dissipation plate; the lower cover plate is provided with a through oblong hole, the heat pipe passes through the oblong hole, and the lower cover plate is also provided with a cross-shaped hole for accommodating The limit block. 10. The battery module structure according to claim 1, wherein the heat-conducting glue is heat-conducting silica gel.