CN217768651U - Partition plate structure and battery module - Google Patents

Abstract

The utility model provides a baffle structure and battery module, including crossbeam and a plurality of baffle, each baffle sets up respectively on the crossbeam, and be provided with the interval between each baffle, so that form a blowing district that is used for acceping square shell electricity core between every two adjacent baffles, be provided with a plurality of material stopping block on the crossbeam, each material stopping block one-to-one extends toward the direction that is close to each blowing district, the baffle is close to one of crossbeam and serves to form limited material piece along the extending direction protrusion of crossbeam, the limited material piece is connected with the material stopping block, thus, connect gradually each baffle through the crossbeam, so that form a blowing district that is used for placing square shell electricity core between every adjacent a baffle, and it is spacing all to be provided with a material stopping block in every blowing district to carry out the top to square shell electricity core, thereby can eliminate the difference in height at both ends when making each side of shell electricity core constitute battery module, so that each battery module can use the steel band of same model, avoid appearing the compounding.

Description

Partition plate structure and battery module

Technical Field

The utility model relates to a battery field especially relates to a baffle structure and battery module.

Background

The battery module can be understood as a combination formed by connecting a plurality of battery cells in series or in parallel. The equipment mode when battery module is constituteed to different shape electricity core is slightly different, for example when square shell electricity core constitutes battery module, can install the wind channel baffle between the electricity core usually.

Present wind channel baffle is mutually independent structure for square shell electricity core is in the state of freely arranging when leaning on in turn to fold in groups with the wind channel baffle, and the both ends that lead to the battery module of constituteing have the difference in height, and each side's shell electricity core of battery module promptly is difficult to keep on same horizontal plane promptly. Especially along with the increase of the quantity of unitized square shell electricity core and wind channel baffle, the difference in height at battery module both ends can further increase. This may make it difficult to shape the steel belt for fastening the battery module. Even the steel band of the same model also is difficult to guarantee to fix the battery module reliably, leads to that the steel band of the battery module of the same model in groups needs different models to fasten, causes the steel band compounding in production easily.

Therefore, the design of a separator structure for battery modules is to eliminate the height difference between two ends of the battery modules when the battery modules are grouped, so that the same type of steel belts can be used in production, and the technical problem to be solved by the technical personnel in the field is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing a baffle structure and battery module, can eliminate the difference in height that grouped battery module both ends exist to make each battery module can use the steel band with the model, avoid appearing the compounding.

The purpose of the utility model is realized through the following technical scheme:

a separator plate structure comprising: the battery cell comprises a cross beam and a plurality of partition plates, wherein each partition plate is arranged on the cross beam, and a space is arranged between every two adjacent partition plates, so that a material containing area for containing a square-shell battery cell is formed between every two adjacent partition plates;

the cross beam is provided with a plurality of material blocking blocks, and the material blocking blocks correspondingly extend towards the direction close to each material placing area one by one;

one end of the partition board close to the cross beam protrudes along the extending direction of the cross beam to form a limiting block, and the limiting block is connected with the material blocking block.

In one embodiment, the number of the cross beams is two, one end of each partition board is connected with one of the cross beams, and the other end of each partition board is connected with the other cross beam.

In one embodiment, a clamping boss is arranged at one end, far away from the cross beam, of the limiting block, and the clamping boss extends in the direction far away from the material placing area.

In one embodiment, the partition is provided with a plurality of heat dissipation holes, each heat dissipation hole penetrates through the partition, and a space is arranged between every two heat dissipation holes.

In one embodiment, the partition plate is provided with a clearance hole penetrating through the partition plate along the extending direction of the cross beam, and the clearance hole is used for dividing the partition plate into a first partition block and a second partition block.

In one embodiment, a placing groove is formed in one side wall, close to the material placing area, of the first partition block.

A battery module comprises the partition board structure, a steel belt, two end plates and a plurality of square-shell battery cores, wherein the two end plates are arranged at two ends of the partition board structure respectively, so that a material placing area is formed between each end plate and the partition board structure, each square-shell battery core is accommodated in the material placing area and each material placing area respectively, and the partition board structure and the two end plates are sleeved with the steel belt.

In one embodiment, two side walls of each square-shell battery cell are provided with silica gel pads.

In one embodiment, two separator structures are provided, one of the separator structures is disposed at one end of each of the square-shell battery cells, and the other separator structure is disposed at the other end of each of the square-shell battery cells.

Compared with the prior art, the utility model discloses at least, following advantage has:

the utility model discloses a baffle structure and battery module, including crossbeam and a plurality of baffle, each baffle sets up respectively on the crossbeam, and be provided with the interval between each baffle, so that form a blowing district that is used for acceping the square-shell electricity core between per two adjacent baffles, be provided with a plurality of material blocking pieces on the crossbeam, each material blocking piece one-to-one extends toward the direction that is close to each blowing district, the baffle is close to one of crossbeam and serves to form limited material piece along the extending direction protrusion of crossbeam, the limited material piece is connected with the material blocking piece, thus, connect gradually each baffle through the crossbeam, so that form a blowing district that is used for placing the square-shell electricity core between per adjacent a baffle, and all be provided with a material blocking piece in every blowing district and carry on the top to the square-shell electricity core and hold spacingly, thereby the difference in height at both ends can be eliminated when making each side of shell electricity core constitute battery module, so that each battery module can use the steel band of same model, avoid appearing the compounding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural view of a partition structure according to an embodiment of the present invention;

FIG. 2 is a schematic partial view of the separator structure shown in FIG. 1;

fig. 3 is a schematic structural diagram of a battery module according to an embodiment of the present invention;

fig. 4 is a schematic partial structure diagram of a battery module according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings.

Referring to fig. 1, a separator structure 10 includes a beam 100 and a plurality of separators 200, each separator 200 is disposed on the beam 100, and a space is disposed between each separator 200, so that a material placing region 500 for receiving a square-shell battery cell is formed between every two adjacent separators 200, a plurality of material blocking blocks 300 are disposed on the beam 100, each material blocking block 300 extends in a direction close to each material placing region 500 in a one-to-one correspondence manner, a limiting block 400 is formed on one end of each separator 200 close to the beam 100 and protrudes along the extending direction of the beam 100, and the limiting block 400 is connected to the material blocking block 300.

It should be noted that the partition boards 200 are respectively disposed on the beam 100, and a space is disposed between any two adjacent partition boards 200, in an embodiment, the space between each partition board 200 is equidistant, that is, the width of each of the formed material placing areas 500 is the same; further, a plurality of material blocking blocks 300 are arranged on the beam 100, a gap is formed between the material blocking blocks 300, the gap between the material blocking blocks 300 is equal to the gap between the material placing areas 500, and the material blocking blocks 300 extend in the direction close to the material placing areas 500 in a one-to-one correspondence manner, that is, the material blocking blocks 300 extend from the beam 100 into the material placing areas 500. So, put into blowing district 500 when square shell electricity core, final square shell electricity core can with keep off material piece 300 looks butt, it is spacing to utilize keeping off material piece 300 to the top of square shell electricity core, avoid square shell electricity core from being close to that of crossbeam 100 and serve the roll-off, make square shell electricity core fixed together with baffle 200 reliably, so, through crossbeam 100 with each baffle 200 fixed connection, finally make each square shell electricity core all be in the coplanar, thereby make unitized battery module both ends no longer have the difference in height.

Further, the separators 200 are disposed on the beam 100 at intervals, that is, the separators 200 are arranged along the extending direction of the beam 100, in order to prevent the square-casing cells from protruding from the side of the separators 200, that is, prevent the square-casing cells from protruding from the extending direction of the beam 100 in the radial direction, therefore, a material limiting block 400 is disposed at one end of the separator 200 close to the beam 100, the material limiting block 400 extends and protrudes toward the extending direction of the beam 100, so that every two adjacent material limiting blocks 400 block the square-casing cells together, and thus, when the square-casing cells are placed in each placing area, each material limiting block 400 can ensure that two side surfaces of each square-casing cell are located in two parallel planes, thereby preventing the square-casing cells from sliding out from the side edges of the separators 200, and improving the stability of the square-casing cells. The limiting block 400 is connected to the stopping block 300, for example, the limiting block and the stopping block may be integrally formed or may be screwed by screws. So, through setting up limit material piece 400 and material blocking piece 300 to the state that is connected, can strengthen the structural strength between limit material piece 400 and the material blocking piece 300. In an embodiment, the surface of the material limiting block 400 is perpendicular to the surface of the material blocking block 300, so that the structural strength of the material blocking block 300 and the material limiting block 400 can be further enhanced.

Therefore, the top surface, the bottom surface and the two side surfaces of each shell battery core can be in a flat state, so that the formed battery module can be generally used for steel belts with the same type, and steel belt mixing is avoided in production; moreover, the square shell battery cell is limited and fixed through the material blocking block 300 and the material limiting block 400, and after the square shell battery cell is placed in the material placing area 500 and placed in place, each square shell battery cell is not in a free arrangement state any more, and energy is not required to be consumed additionally to align each square shell battery cell, so that the grouping efficiency of the square shell battery cell can be accelerated.

Referring to fig. 1, in an embodiment, two beams 100 are provided, one end of each partition 200 is connected to one of the beams 100, and the other end of each partition 200 is connected to the other beam 100. In order to further improve the structural strength between the partition boards 200, one cross member 100 is provided at each end of the partition boards 200.

In one embodiment, the cross beam 100 and each partition 200 are integrally formed, so that the structural strength of the partition structure 10 can be effectively improved. Further, when the two cross members 100 are provided, the two cross members 100 and the respective partition boards 200 are integrally formed, so that the structural strength of the partition board structure 10 is further improved. Further, also be integrated into one piece structure between crossbeam 100 and the fender material piece 300, also be integrated into one piece structure between baffle 200 and the limit material piece 400, so for the baffle structure 10 that forms has sufficient structural strength, in order to realize carrying out effective protection to the square shell electricity core of placing in the blowing district. Further, in an embodiment, the cross beam 100, the partition plate 200, the material blocking block 300, and the material limiting block 400 are all polyethylene structures, so that the weight of the partition plate structure 10 can be reduced while the partition plate structure 10 has sufficient structural strength, and the weight of the final battery modules in a group is reduced.

Referring to fig. 1 and fig. 2, in an embodiment, a clamping boss 410 is disposed on an end of the material limiting block 400 away from the beam 100, and the clamping boss 410 extends in a direction away from the material placing area 500.

It should be noted that, after the square-casing cells are installed in each of the material placing areas 500, the steel belt is required to bind and fix each of the separators 200 and each of the square-casing cells, and at this time, the steel belt may bypass the outer side wall of the material limiting block 400, and in order to prevent the steel belt from slipping off the outer side wall of the material limiting block 400, the clamping boss 410 is disposed on the outer side wall of the material limiting block 400, so that the clamping boss 410 can abut against the steel belt. In an embodiment, the extending direction of the clamping boss 410 on the material limiting block 400 is consistent with the extending direction of the cross beam 100, so that the clamping boss 410 is utilized to clamp the steel strip, the steel strip can be prevented from sliding out from the upper part or the lower part of the partition board 200 and the square shell battery cell, and the fastening reliability of the steel strip is improved.

Referring to fig. 1 and 2, in an embodiment, the partition 200 is provided with a plurality of heat dissipation holes 210, each heat dissipation hole 210 penetrates through the partition 200, and a space is disposed between each heat dissipation hole 210.

It should be noted that, because the square-casing battery cell generates heat during the cycle, in order to improve the heat dissipation, the heat is stored in the battery module, and therefore, a plurality of heat dissipation holes 210 are formed in the separator 200, and a space is formed between each heat dissipation hole 210, wherein all the heat dissipation holes 210 penetrate from the top surface to the bottom surface of the separator 200 to form a through-hole structure, which is beneficial to improving the heat dissipation effect of the separator 200.

Referring to fig. 1, in an embodiment, the partition board 200 is provided with a clearance hole 220 penetrating through the partition board 200 along the extending direction of the beam 100, and the clearance hole 220 is used for dividing the partition board 200 into a first spacer 230 and a second spacer 240.

It should be noted that, in order to further improve the heat dissipation effect of the partition board 200 and reduce the weight of the partition board 200, so that the battery modules in a group are lighter, the partition board 200 is provided with clearance holes 220 having a transverse penetrating structure, wherein each heat dissipation hole 210 is communicated with the clearance hole 220, and the clearance hole 220 divides the partition board 200 into a first partition 230 and a second partition 240. Wherein the first spacer 230 is a portion closer to the beam 100 and the second spacer 240 is a portion farther from the beam 100. In one embodiment, the first spacer particles 230 have a height different from the height of the second spacer particles 240.

Referring to fig. 1, in an embodiment, a positioning groove 231 is formed on a sidewall of the first spacer 230 near the material holding area 500. It should be noted that when the square-casing cells are grouped, structural glue or a silica gel pad is usually required to be coated on the outer surfaces of the square-casing cells, so that the first spacer block 230 is provided with the placement groove 231, so that the structural glue or the silica gel pad is partially accommodated in the placement groove 231, and the stability of the structural glue or the silica gel pad is improved. In one embodiment, the structural adhesive is a sealant, which is used to eliminate a gap between the square-shell battery cell and the first spacer 230, thereby improving the stability of the square-shell battery cell.

Referring to fig. 1 and fig. 3, a battery module 1 includes a partition structure 10, a steel strip 20, two end plates 30 and a plurality of square-shell battery cells 40, wherein the two end plates 30 are respectively disposed at two ends of the partition structure 10, so as to form a material accommodating region between the end plates 30 and the partition structure 10, the square-shell battery cells 40 are respectively accommodated in the material accommodating region and each material accommodating region 500, and the steel strip 20 is sleeved on the partition structure 10 and the two end plates 30.

It should be noted that, a plurality of material placing areas 500 are formed on the partition board structure 10, a square-shell battery cell 40 is placed in each material placing area 500, two end plates 30 are respectively installed at two ends of the partition board structure 10, so that a material placing area is also formed between the end plates 30 and the partition board structure 10, and a square-shell battery cell 40 is also placed in the material placing area, so that the square-shell battery cell 40 and the partition board structure 10 are clamped in the middle by the two end plates 30, and finally, the steel belt 20 is sleeved on the two end plates 30, so that the steel belt 20 bundles and fixes the square-shell battery cell 40 between the two end plates 30 and the partition board structure 10, thereby forming the battery module 1. It should be noted that, under the effect of dam block 300 on baffle structure 10, can install each blowing district 500 with square shell electricity core 40 fast in, and make each square shell electricity core 40 be in on the same horizontal plane, and then be favorable to end plate 30 and steel band 20 to install, and because baffle structure 10 self has certain rigidity intensity, consequently, the elasticity of steel band 20 can reach unanimously basically, consequently, each battery module 1 of unitized with the model uses the steel band 20 of the same model just can realize fixing, thereby can avoid appearing the steel band 20 compounding in production, and then can improve battery module 1's production efficiency.

Referring to fig. 1, fig. 3 and fig. 4, in an embodiment, a silicone rubber pad 50 is disposed on both sidewalls of each square-casing electrical core 40.

It should be noted that, because the square-casing battery cell 40 is inserted into the material-placing region 500 for installation, a certain gap must exist between the square-casing battery cell 40 and the inner side wall of the material-placing region 500, and in order to eliminate the gap, the square-casing battery cell 40 and the separator structure 10 are reliably fixed, so that the silicone pads 50 are disposed on both side walls of the square-casing battery cell 40, and the silicone pads 50 are also abutted against the separator 200 or the end plate 30, for example, if the square-casing battery cell 40 is located in the material-placing region, one of the silicone pads 50 on both sides thereof is tightly abutted against the end plate 30, and the other is tightly abutted against the separator 200 on the outermost side of the separator structure 10; the silicone pads 50 on both sides of the square-shell battery cell 40 in the emptying region 500 are respectively tightly attached to the partition boards 200 on both sides of the square-shell battery cell 40. In an embodiment, the silicone rubber pad 50 is partially accommodated in the accommodating groove 231 on the outer side wall of the first partition block 230, so that the silicone rubber pad 50 is limited by the accommodating groove 231, the silicone rubber pad 50 can be prevented from sliding out from between the square-shell battery core 40 and the partition board 200, and the stability of the silicone rubber pad 50 is improved.

Further, referring to fig. 3, in an embodiment, two partition plate structures 10 are provided, one partition plate structure 10 is disposed at one end of each casing electric core 40, and the other partition plate structure 10 is disposed at the other end of each casing electric core 40.

It should be noted that, two partition plate structures 10 are provided to be respectively installed at the upper end and the lower end of the square-shell battery core 40, and each square-shell battery core 40 is clamped and fixed by the two partition plate structures 10, so that the stability of each square-shell battery core 40 can be further improved, and the structural strength of the grouped battery module 1 is further improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (9)

1. A baffle structure, comprising: the battery cell comprises a cross beam and a plurality of partition plates, wherein each partition plate is arranged on the cross beam, and a space is arranged between every two adjacent partition plates, so that a material containing area for containing a square-shell battery cell is formed between every two adjacent partition plates;

the cross beam is provided with a plurality of material blocking blocks, and the material blocking blocks correspondingly extend towards the direction close to each material placing area one by one;

one end of the partition board close to the cross beam protrudes along the extending direction of the cross beam to form a limiting block, and the limiting block is connected with the material blocking block.

2. The partition structure of claim 1 wherein there are two of the beams, one end of each of the partitions is connected to one of the beams, and the other end of each of the partitions is connected to the other beam.

3. The partition structure according to claim 1 or 2, wherein a locking boss is provided on an end of the limiting block away from the cross beam, the locking boss extending in a direction away from the discharge area.

4. The partition structure according to claim 1 or 2, wherein the partition is provided with a plurality of heat dissipation holes, each heat dissipation hole penetrates through the partition, and a space is provided between the heat dissipation holes.

5. The partition structure according to claim 1 or 2, wherein the partition is provided with a clearance hole penetrating through the partition along the extending direction of the cross beam, and the clearance hole is used for dividing the partition into a first partition and a second partition.

6. The partition structure of claim 5, wherein a sidewall of the first partition adjacent to the material containing region is provided with a placement groove.

7. A battery module, comprising the separator structure of any one of claims 1 to 6, further comprising a steel strip, two end plates and a plurality of square-shell cells, wherein the two end plates are respectively disposed at two ends of the separator structure, so that a material holding region is formed between the end plates and the separator structure, each square-shell cell is respectively accommodated in the material holding region and each material holding region, and the steel strip is sleeved on the separator structure and the two end plates.

8. The battery module according to claim 7, wherein a silicone gasket is disposed on each of two side walls of each of the square-shell battery cells.

9. The battery module according to claim 7, wherein the two separator structures are provided, one of the two separator structures is provided at one end of each of the square-shell cells, and the other separator structure is provided at the other end of each of the square-shell cells.

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