CN216213792U

CN216213792U - Battery module

Info

Publication number: CN216213792U
Application number: CN202121722431.0U
Authority: CN
Inventors: 陈创庭; 孙婉妹; 熊凯; 张尤君; 王群; 饶睦敏; 李明飞; 陈正鹏
Original assignee: Guangdong Energy Group Science And Technology Research Institute Co ltd
Current assignee: Guangdong Energy Group Science And Technology Research Institute Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-04-05
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to the technical field of storage batteries, and discloses a battery module, which comprises a seat body, a square battery core and a limiting strip, wherein the seat body is provided with a first groove and a second groove; the seat body is provided with a cuboid concave cavity; the number of the square electric cores is multiple, the square electric cores are sequentially arranged along the length direction of the concave cavity, and the lower parts of the square electric cores are respectively clamped into the concave cavity; two ends of the limiting strip are respectively detachably connected with the base body; spacing from one side of cavity stride across to the opposite side of cavity with the upper portion of a plurality of square electric cores of butt and compress tightly a plurality of square electric cores in the cavity. The battery module provided by the embodiment of the utility model has smaller overall volume and overall mass, and is more convenient and faster in subsequent production operations such as welding, boxing, assembly of a production line and the like.

Description

Battery module

Technical Field

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

Background

With the increase of the power generation permeability of the clean energy, the development of an energy storage technology and the construction of an energy storage project become key methods for solving the intermittent defect of the clean energy and ensuring the safe operation of a power grid.

The iron carbonate lithium battery is a battery which has more prominent development advantages in the aspect of storage battery technology in recent two years. The cell structures of the iron carbonate lithium battery are various, wherein the battery energy density of a square cell is higher, and larger battery capacity can be provided in a limited volume.

In the battery module of square electric core, generally encapsulate square electric core in the box, with the integrative setting of box, this kind of mode causes the great and weight increase of volume of battery module, and is follow-up welding, vanning to and the assembly line is produced when the line equipment comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: a battery module is provided which employs a new manner to load square cells to reduce overall volume and overall mass.

In order to achieve the purpose, the utility model provides a battery module, which comprises a seat body, a square battery core and a limiting strip, wherein the seat body is provided with a first groove and a second groove; the seat body is provided with a cuboid concave cavity; the number of the square electric cores is multiple, the square electric cores are sequentially arranged along the length direction of the concave cavity, and the lower parts of the square electric cores are respectively clamped into the concave cavity; two ends of the limiting strip are respectively detachably connected with the base body; spacing from one side of cavity stride across to the opposite side of cavity with the upper portion of a plurality of square electric cores of butt and compress tightly a plurality of square electric cores in the cavity.

Further, the device also comprises a plurality of first limit blocks; the square battery cells are arranged at intervals, and a cooling channel is formed between the adjacent square battery cells; the first limiting blocks correspond to the cooling channels one by one, and the first limiting blocks are located in the corresponding cooling channels and are respectively arranged on the inner walls of the cavities.

Further, the cavity comprises a first long-side wall and a second long-side wall; the first long side wall is provided with a plurality of first through holes in one-to-one correspondence with the plurality of cooling channels, and the second long side wall is provided with a plurality of second through holes in one-to-one correspondence with the plurality of cooling channels.

Furthermore, the cooling device also comprises a plurality of second limiting blocks which correspond to the plurality of cooling channels one by one and are positioned in the corresponding cooling channels; the first limiting blocks are respectively arranged on the side walls of the first long sides, the first limiting blocks correspond to the first through holes one by one, and first sub-channels respectively communicated with the corresponding first through holes and the corresponding cooling spaces are arranged in each first limiting block; the plurality of second limiting blocks are respectively arranged on the second long side wall, the plurality of second limiting blocks correspond to the plurality of second through holes one by one, and second sub-channels which are respectively communicated with the corresponding second through holes and the corresponding cooling spaces are arranged in each second limiting block.

Furthermore, each first limiting block comprises a first left limiting plate and a first right limiting plate arranged at an interval with the first left limiting plate, and the first sub-channel is formed between the first left limiting plate and the first right limiting plate; each second limiting block comprises a second left limiting plate and a second right limiting plate arranged at an interval with the second left limiting plate, and the second sub-channel is formed between the second left limiting plate and the second right limiting plate.

Further, the seat body comprises a bottom plate, a first side plate arranged on the bottom plate, a second side plate arranged on the bottom plate, a third side plate arranged on the bottom plate, and a fourth side plate arranged on the bottom plate; the first side plate, the second side plate, the third side plate and the fourth side plate are detachably connected end to end, and the cavity is formed by enclosing the bottom plate, the first side plate, the second side plate, the third side plate and the fourth side plate.

Furthermore, a first flanging attached to the first side plate is arranged on one side of the second side plate, and a second flanging attached to the third side plate is arranged on the other side of the second side plate; the first flanging is detachably connected with the first side plate through a bolt, and the second flanging is detachably connected with the third side plate through a bolt; a third flanging attached to the first side plate is arranged on one side of the fourth side plate, and a fourth flanging attached to the third side plate is arranged on the other side of the fourth side plate; the third flanging and the first side plate are detachably connected through bolts, and the fourth flanging and the third side plate are detachably connected through bolts.

Furthermore, a first mounting seat is arranged on the outer side of the second side plate, and a first supporting seat detachably connected with the first mounting seat through a bolt is arranged on the seat body; the outer side of the fourth side plate is provided with a second mounting seat, and the seat body is provided with a second supporting seat detachably connected with the second mounting seat through a bolt.

Further, the limiting strip comprises a first section, a second section and a middle section between the first section and the second section; the end parts of the first section and the second section are detachably connected to the base body through bolts respectively, and the middle section is located in the opening direction of the concave cavity.

Furthermore, a wiring groove is formed in one side, away from the seat body, of the middle section.

Compared with the prior art, the battery module provided by the embodiment of the utility model has the beneficial effects that:

the battery module provided by the embodiment of the utility model has smaller overall volume and overall mass, and is more convenient and faster in subsequent production operations such as welding, boxing, assembly of a production line and the like.

Drawings

Fig. 1 is an exploded structural view of a battery module according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a of the battery module according to the embodiment of the present invention in fig. 1.

In the figure, 1, a seat body; 11. a base plate; 12. a first side plate; 13. a second side plate; 14. a third side plate; 15. a fourth side plate; 16. a first through hole; 17. a second through hole; 2. a square battery cell; 3. a limiting strip; 31. a first stage; 32. a second stage; 33. a middle section; 4. a first stopper; 5. a second limiting block; 51. a second left limiting plate; 52. a second right limiting plate; 6. a cooling channel; 7. a wiring groove.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 2, an embodiment of the utility model provides a battery module, which includes a base 1, a square battery cell 2, and a limiting strip 3; the seat body 1 is provided with a cuboid concave cavity; the number of the square electric cores 2 is multiple, the square electric cores 2 are sequentially arranged along the length direction of the concave cavity, and the lower parts of the square electric cores 2 are respectively clamped into the concave cavity; two ends of the limiting strip 3 are respectively detachably connected with the base body 1; spacing 3 stride across to the opposite side of cavity with the upper portion of a plurality of square electric cores 2 of butt and compress tightly a plurality of square electric cores 2 in the cavity from one side of cavity.

The battery module of this embodiment is earlier gone into to the cavity in a plurality of square electric core 2 cards when the equipment, then sets up and stridees across to the spacing 3 of the opposite side of cavity from one side of cavity, fixes the both ends of spacing 3 respectively on pedestal 1 to make spacing 3 butts a plurality of square electric core 2's upper portion is and will be a plurality of square electric core 2 compresses tightly in the cavity, can fix in the cavity firmly in order to guarantee that electric core.

Compared with the prior art, the battery module of this embodiment's whole volume and whole quality are less, and it is more convenient during the follow-up production operation such as welding, vanning to and assembly line production line equipment.

Further, in an embodiment, please refer to fig. 1 to fig. 2, further comprising a plurality of first stoppers 4; the square battery cells 2 are arranged at intervals, and a cooling channel 6 is formed between the adjacent square battery cells 2; the first limiting blocks 4 correspond to the cooling channels 6 one by one, and the first limiting blocks 4 are located in the corresponding cooling channels 6 and are respectively arranged on the inner walls of the cavities.

The embodiment has a good heat dissipation effect on the square battery cell 2.

The following description will be made with reference to a preferred embodiment in which the cooling medium is air: during the heat dissipation, because the battery module of this embodiment compresses tightly square electric core 2 through spacing 3, and spacing 3's area is limited, consequently, except inserting the part in the cavity, 2 most surfaces of square electric core all expose outside, the air is before getting into cooling channel 6, and heat transfer is participated in to one side of square electric core 2 perpendicular to cooling channel 6, and when the air flows in cooling channel 6, square electric core 2 is in the heat transfer is participated in to the side in cooling channel 6, after the air outflow cooling channel 6, heat transfer is participated in to the opposite side of square electric core 2 perpendicular to cooling channel 6.

Consequently, in the battery module of this embodiment, square electric core 2's heat transfer area ratio is big, and the heat transfer is respond well, satisfies the heat dissipation demand.

Further, in one embodiment, referring to fig. 1-2, the cavity includes a first long-side sidewall and a second long-side sidewall; the first long side wall is provided with a plurality of first through holes 16 corresponding to the plurality of cooling channels 6 one to one, and the second long side wall is provided with a plurality of second through holes 17 corresponding to the plurality of cooling channels 6 one to one.

The heat dissipation effect of the square battery cell 2 is further improved in the embodiment.

The following description will be made by taking the cooling medium as air as a preferred embodiment: during heat dissipation, air enters the cooling channel 6 through the region not blocked by the base body 1, and enters the cooling channel 6 through the first through holes 16 on the first long-side wall, so as to dissipate heat of the square battery core 2 inside the cavity, thereby further reducing the temperature of the square battery core 2.

Further, in an embodiment, please refer to fig. 1 to fig. 2, further including a plurality of second stoppers 5 corresponding to the plurality of cooling channels 6 one by one and located in the corresponding cooling channels 6; the first limiting blocks 4 are respectively arranged on the side walls of the first long side, the first limiting blocks 4 correspond to the first through holes 16 one by one, and first sub-channels respectively communicated with the corresponding first through holes 16 and the corresponding cooling spaces are arranged in each first limiting block 4; the second limiting blocks 5 are respectively arranged on the second long side wall, the second limiting blocks 5 correspond to the second through holes 17 one by one, and second sub-channels communicated with the corresponding second through holes 17 and the corresponding cooling spaces are respectively arranged in each second limiting block 5.

In this embodiment, the first limiting block 4 and the second limiting block 5 jointly fix the square battery cell 2, so that the fixing effect of the square battery cell 2 is improved.

Meanwhile, in this embodiment, for avoiding the first limiting block 4 and the second limiting block 5 from blocking the flow of the cooling medium, and ensuring the heat dissipation effect of the square electric core 2 inside the cavity, a first sub-channel and a second sub-channel are provided, when the cooling medium flows into the cavity via the first through hole 16, the cooling medium enters the cooling channel 6 via the first sub-channel, and the cooling medium in the cooling channel 6 can also flow out of the cooling channel 6 via the second sub-channel.

Further, in an embodiment, referring to fig. 1 to 2, each of the first limiting blocks 4 includes a first left limiting plate and a first right limiting plate spaced apart from the first left limiting plate, and the first sub-channel is formed between the first left limiting plate and the first right limiting plate; each of the second limiting blocks 5 includes a second left limiting plate 51 and a second right limiting plate 52 spaced apart from the second left limiting plate 51, and the second sub-channel is formed between the second left limiting plate 51 and the second right limiting plate 52.

In this embodiment, in each first limiting block 4, a first left limiting plate abuts against one adjacent square battery cell 2, and a first right limiting plate abuts against the other adjacent square battery cell 2; in each second limiting block 5, the second left limiting plate 51 abuts against one adjacent square battery cell 2, and the second right limiting plate 52 abuts against the other adjacent square battery cell 2.

The communication area between the first sub-channel and the cooling channel 6 is increased, and the communication area between the second sub-channel and the cooling channel 6 is increased, so that the cooling medium can flow more conveniently.

Further, in an embodiment, referring to fig. 1 to 2, the seat body 1 includes a bottom plate 11, a first side plate 12 disposed on the bottom plate 11, a second side plate 13 disposed on the bottom plate 11, a third side plate 14 disposed on the bottom plate 11, and a fourth side plate 15 disposed on the bottom plate 11; the first side plate 12, the second side plate 13, the third side plate 14 and the fourth side plate 15 are detachably connected end to end, and the cavity is formed by enclosing the bottom plate 11, the first side plate 12, the second side plate 13, the third side plate 14 and the fourth side plate 15.

In this embodiment, through setting up pedestal 1 into detachable construction, combine spacing 3 can dismantle the mode of connection on pedestal 1 equally simultaneously, can dismantle the battery module of this embodiment and form a plurality of small spare parts that take up an area of to in carrying out partial shipment, transportation and equipment.

Preferably, the first side plate 12 and the third side plate 14 have the same length and are respectively larger than the second side plate 13 and the fourth side plate 15, and the spacing strip 3 is U-shaped and has one end detachably connected to the second side plate 13 and the other end detachably connected to the fourth side plate 15.

Preferably, the partial plate bodies of the first side plate 12 are recessed inwards to form a first left limiting plate, a first right limiting plate and a first through hole 16, and the partial plate bodies of the third side plate 14 are recessed inwards to form a second left limiting plate 51, a second right limiting plate 52 and a second through hole 17.

Preferably, the first side plate 12, the second side plate 13, the third side plate 14, the fourth side plate 15, the bottom plate 11 and the limiting strip 3 are all made of a sheet metal material.

Further, in an embodiment, referring to fig. 1 to 2, a first flange attached to the first side plate 12 is disposed on one side of the second side plate 13, and a second flange attached to the third side plate 14 is disposed on the other side of the second side plate 13; the first flanging is detachably connected with the first side plate 12 through a bolt, and the second flanging is detachably connected with the third side plate 14 through a bolt; a third flanging attached to the first side plate 12 is arranged on one side of the fourth side plate 15, and a fourth flanging attached to the third side plate 14 is arranged on the other side of the fourth side plate 15; the third flanging is detachably connected with the first side plate 12 through a bolt, and the fourth flanging is detachably connected with the third side plate 14 through a bolt.

In this embodiment, through setting up the turn-ups structure and using bolted connection, improved the joint strength of first curb plate 12, second curb plate 13, third curb plate 14 and fourth curb plate 15, and then improved the support effect to square electric core 2.

Further, in an embodiment, referring to fig. 1 to fig. 2, a first mounting seat is disposed on an outer side of the second side plate 13, and a first supporting seat detachably connected to the first mounting seat through a bolt is disposed on the seat body 1; a second mounting seat is arranged on the outer side of the fourth side plate 15, and a second supporting seat detachably connected with the second mounting seat through a bolt is arranged on the seat body 1.

In this embodiment, the first side plate 12, the second side plate 13, the third side plate 14, and the fourth side plate 15 are detachably connected to the bottom plate 11 directly or indirectly through the detachable connection between the first mounting seat and the first supporting seat and the detachable connection between the second mounting seat and the second supporting seat.

Further, in an embodiment, referring to fig. 1 to 2, the position-limiting strip 3 includes a first section 31, a second section 32, and a middle section 33 between the first section 31 and the second section 32; the ends of the first section 31 and the second section 32 are detachably connected to the seat body 1 through bolts, respectively, and the middle section 33 is located in the opening direction of the concave cavity.

Further, in an embodiment, referring to fig. 1 to fig. 2, a wiring groove 7 is formed on a side of the middle section 33 away from the base 1, so as to facilitate wiring of the electric wire of the square electrical core 2. Furthermore, a wire passing clamping groove and a wire clamping hole are arranged on the edge of the wiring groove 7 so as to facilitate the wire to be separated from the wiring groove 7.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

the seat body is provided with a cuboid-shaped concave cavity;

a plurality of square battery cores; the square battery cells are sequentially arranged along the length direction of the concave cavity, and the lower parts of the square battery cells are respectively clamped into the concave cavity;

and

the two ends of the limiting strip are respectively detachably connected with the base body; the limiting strip spans from one side of the cavity to the other side of the cavity to abut against the upper parts of the square electric cores and tightly press the square electric cores in the cavity.

2. The battery module according to claim 1, further comprising a plurality of first stoppers;

the square battery cells are arranged at intervals, and a cooling channel is formed between the adjacent square battery cells;

the first limiting blocks correspond to the cooling channels one by one, and the first limiting blocks are located in the corresponding cooling channels and are respectively arranged on the inner walls of the cavities.

3. The battery module according to claim 2, wherein the cavity comprises a first long side wall and a second long side wall;

the first long side wall is provided with a plurality of first through holes in one-to-one correspondence with the plurality of cooling channels, and the second long side wall is provided with a plurality of second through holes in one-to-one correspondence with the plurality of cooling channels.

4. The battery module according to claim 3, further comprising a plurality of second stoppers that correspond one-to-one to the plurality of cooling channels and are located in the corresponding cooling channels;

the first limiting blocks are respectively arranged on the side walls of the first long sides, the first limiting blocks correspond to the first through holes one by one, and first sub-channels respectively communicated with the corresponding first through holes and the corresponding cooling spaces are arranged in each first limiting block;

the plurality of second limiting blocks are respectively arranged on the second long side wall, the plurality of second limiting blocks correspond to the plurality of second through holes one by one, and second sub-channels which are respectively communicated with the corresponding second through holes and the corresponding cooling spaces are arranged in each second limiting block.

5. The battery module according to claim 4, wherein each of the first limiting blocks comprises a first left limiting plate and a first right limiting plate spaced from the first left limiting plate, and the first sub-channel is formed between the first left limiting plate and the first right limiting plate;

each second limiting block comprises a second left limiting plate and a second right limiting plate arranged at an interval with the second left limiting plate, and the second sub-channel is formed between the second left limiting plate and the second right limiting plate.

6. The battery module according to claim 1, wherein the base comprises a bottom plate, a first side plate disposed on the bottom plate, a second side plate disposed on the bottom plate, a third side plate disposed on the bottom plate, and a fourth side plate disposed on the bottom plate;

the first side plate, the second side plate, the third side plate and the fourth side plate are detachably connected end to end, and the cavity is formed by enclosing the bottom plate, the first side plate, the second side plate, the third side plate and the fourth side plate.

7. The battery module according to claim 6,

a first flanging attached to the first side plate is arranged on one side of the second side plate, and a second flanging attached to the third side plate is arranged on the other side of the second side plate; the first flanging is detachably connected with the first side plate through a bolt, and the second flanging is detachably connected with the third side plate through a bolt;

a third flanging attached to the first side plate is arranged on one side of the fourth side plate, and a fourth flanging attached to the third side plate is arranged on the other side of the fourth side plate; the third flanging and the first side plate are detachably connected through bolts, and the fourth flanging and the third side plate are detachably connected through bolts.

8. The battery module according to claim 6, wherein a first mounting seat is arranged on the outer side of the second side plate, and a first supporting seat detachably connected with the first mounting seat through a bolt is arranged on the seat body;

the outer side of the fourth side plate is provided with a second mounting seat, and the seat body is provided with a second supporting seat detachably connected with the second mounting seat through a bolt.

9. The battery module according to claim 1, wherein the stopper bar comprises a first section, a second section, and a middle section between the first section and the second section;

the end parts of the first section and the second section are detachably connected to the base body through bolts respectively, and the middle section is located in the opening direction of the concave cavity.

10. The battery module according to claim 9, wherein a wiring groove is formed on a side of the middle section facing away from the base.