CN211719655U

CN211719655U - Battery cell fixing box and battery module

Info

Publication number: CN211719655U
Application number: CN202020531371.3U
Authority: CN
Inventors: 洪丽; 其他发明人请求不公开姓名
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-10-20
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to the technical field of power batteries, and provides an electric core fixing box and a battery module, the electric core fixing box comprises a partition plate group and a box body with a cavity, the partition plate group comprises one or more partition plates, each partition plate divides the cavity into a plurality of holding cavities for holding electric cores, the box body is respectively provided with a guide part on two opposite inner walls, the guide part extends along the length direction of the box body, each partition plate is simultaneously matched with each guide part in a sliding way, so that each partition plate can move along the length direction of the box body, the electric core fixing box can ensure that each partition plate can move along the length direction of the box body by matching the partition plates with the guide parts in a sliding way, thereby adjusting the holding space of the holding cavities according to the size of different electric cores, so that the holding space of the holding cavities is adapted to the size specification of the electric cores, and the electric core fixing box can be suitable for the electric cores with different size specifications, the general performance of above-mentioned electric core fixed box is effectively improved.

Description

Battery cell fixing box and battery module

Technical Field

The utility model relates to a power battery technical field especially provides a fixed case of electricity core and battery module.

Background

The battery module is formed by connecting and combining a plurality of battery cells in a series-parallel connection mode after being accommodated in the fixing box, wherein the fixing box plays a role in effectively supporting, fixing and protecting the battery cells.

At present, traditional electric core fixed box sets up a plurality of baffles usually to separate the inside cavity of electric core fixed box and form a plurality of holding chambeies that are used for holding electric core, however, because the holding space size in each holding chamber is fixed, can be fixed effectively for guaranteeing electric core, and each holding chamber can only hold the electric core that size specification and holding space suited, and is visible, and traditional electric core fixed box's commonality can be relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a fixed case of electric core and battery module aims at solving the relatively poor technical problem of current fixed case commonality ability.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions: a battery cell fixing box comprises a partition plate group and a box body with a cavity, wherein the partition plate group comprises one or more partition plates, the cavity is divided by the partition plates to form a plurality of accommodating cavities for accommodating battery cells, the box body is respectively provided with guide parts on two opposite inner walls, the guide parts extend along the length direction of the box body, and each partition plate is in sliding fit with each guide part simultaneously so that each partition plate can move along the length direction of the box body.

The embodiment of the utility model provides a fixed case of electric core has following beneficial effect at least: through with baffle and guide part sliding fit, make each baffle can follow the length direction removal of box to can adjust the accommodation space size in holding chamber according to the specification of dimensions of different electric cores, so that the accommodation space in holding chamber suits with the specification of dimensions of electric core, guarantees that electric core can fix effectively in above-mentioned electric core fixed box. Therefore, the battery cell fixing box can be suitable for battery cells with different sizes and specifications by the arrangement, and the universality of the battery cell fixing box is effectively improved.

In one embodiment, two sides of the partition board are respectively provided with a first inserting portion, and each first inserting portion is inserted into each guide portion correspondingly.

Through adopting above-mentioned technical scheme, first grafting portion inserts behind the guide part baffle and can follow the guide part and slide, realizes adjusting the accommodation space size in holding chamber, simultaneously, corresponds the grafting through first grafting portion and guide part and also can improve the assembly stability of each baffle to make each baffle effectively play the support fixed action to electric core.

In one embodiment, the partition plate is provided with a first plate surface and a second plate surface which are opposite to each other, and the first plate surface and the second plate surface are both provided with cushion pads in an attached mode.

Through adopting above-mentioned technical scheme, can realize electric core and the soft contact of baffle to electric core and the hard extrusion of baffle and lead to electric core to damage when preventing that the battery module from bumping.

In one embodiment, the guide portion is a guide groove or a guide hole.

In one embodiment, the box body includes a first frame body and a second frame body, the first frame body and the second frame body are slidably sleeved to form the cavity, the first frame body includes a first bottom plate and two first side plates respectively connected to two opposite sides of the first bottom plate, the second frame body includes a second bottom plate and two second side plates respectively connected to two opposite sides of the second bottom plate, the two second side plates are respectively provided with the guide portions, and the two first side plates are respectively provided with consecutive portions corresponding to and consecutively arranged with the guide portions.

Through adopting above-mentioned technical scheme, the battery module of the different length dimensions that above-mentioned electricity core fixed box can produce as required carries out length adjustment to make above-mentioned electricity core fixed box applicable in the battery module of different length dimensions, further improve the commonality of above-mentioned electricity core fixed box.

In one embodiment, the first frame further includes a third bottom plate and two third side plates respectively connected to two opposite sides of the third bottom plate, the third bottom plate and the first bottom plate are arranged in parallel at intervals, and each third side plate and each first side plate are arranged in parallel at intervals correspondingly, so as to form an assembly gap for inserting the second frame.

Through adopting above-mentioned technical scheme, after the second support body inserted above-mentioned fit-up gap, the second bottom plate was restricted between first bottom plate and third bottom plate, and the second curb plate is restricted between first curb plate and third curb plate for relative movement takes place for the length direction that the box was fixed to above-mentioned electric core can only be followed to second support body and first support body, effectively improves first support body and second support body assembly stability.

In one embodiment, one side of each second side plate, which is far away from the second bottom plate, is bent inwards to form flanges, and each flange is correspondingly abutted against one side of each first side plate, which is far away from the first bottom plate.

Through adopting above-mentioned technical scheme, the back is cup jointed in second support body and the mutual slip of first support body, and the second bottom plate laminates with first bottom plate each other, and each turn-ups corresponds the butt with one side that first bottom plate was kept away from to each first curb plate for relative movement takes place for the length direction that above-mentioned electric core fixed box can only be followed to second support body and first support body, effectively improves first support body and second support body assembly stability.

In one embodiment, a sliding limiting structure is disposed between the first frame and the second frame.

Through adopting above-mentioned technical scheme, can prevent effectively that first support body and second support body from appearing the condition that breaks away from each other in the mutual slip in-process, effectively improve first support body and second support body assembly stability.

In one embodiment, the second frame further includes an end plate, each of the guiding portions penetrates through one end of each of the second side plates, which is far away from the first frame, to form an insertion port, and the end plate is provided with a plurality of second insertion portions, each of the second insertion portions being inserted into each of the insertion ports.

Through adopting above-mentioned technical scheme, the second grafting portion is pegged graft in order to realize the demountable installation of end plate in the interface, effectively improves battery module's dismouting convenience.

In order to achieve the above object, an embodiment of the present invention further provides a battery module, including a plurality of battery cells and the above battery cell fixing box, each of the battery cells is accommodated in each accommodating cavity of the battery cell fixing box.

Because the battery module adopts all the embodiments of the battery cell fixing box, the battery module at least has all the beneficial effects of the embodiments, and the details are not repeated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a battery cell fixing box provided in an embodiment of the present invention after a cover plate is removed;

fig. 2 is an exploded view of the cell securing box shown in fig. 1;

fig. 3 is a schematic structural diagram of a partition plate in the cell fixing box shown in fig. 1;

fig. 4 is a schematic structural diagram of a first frame body in the cell fixing box shown in fig. 1;

fig. 5 is a partial structural schematic diagram of a second frame body in the cell fixing box shown in fig. 1;

FIG. 6 is a schematic structural view of an end plate of the second frame shown in FIG. 5;

fig. 7 is a schematic structural view of a first frame body according to another embodiment of the present invention;

fig. 8 is a schematic structural view of a second frame body according to another embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. the box, 11, first support body, 111, first bottom plate, 112, first curb plate, 1121, link up portion, 113, third bottom plate, 114, third curb plate, 115, spacing hole, 116, assembly gap, 12, second support body, 121, second bottom plate, 122, second curb plate, 1221, guide part, 1222, the turn-ups, 123, end plate, 1231, second grafting portion, 124, spacing fixture block, 13, cavity, 131, holding chamber, 20, baffle, 21, first grafting portion, 22, first face, 23, second face, 24, blotter.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are 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 therefore, 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, and "several" means one or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

Referring to fig. 1 to 6, a cell fixing box includes a partition plate group and a box body 10 having a cavity, where the partition plate group includes one or more partition plates 20, each partition plate 20 partitions the cavity into a plurality of accommodating cavities 131 for accommodating cells, the box body 10 is respectively provided with guide portions 1221 on two opposite inner walls, the guide portions 1221 extend along a length direction of the box body 10, and each partition plate 20 is simultaneously in sliding fit with each guide portion 1221, so that each partition plate 20 can move along the length direction of the box body 10.

Above-mentioned electricity core fixed box makes each baffle 20 can move along the length direction of box 10 through with baffle 20 and guide 1221 sliding fit to can adjust the accommodation space size of holding chamber 131 according to the specification of a dimension of different electric cores, so that the accommodation space of holding chamber 131 suits with the specification of a dimension of electric core, guarantees that electric core can fix effectively in above-mentioned electricity core fixed box. Therefore, the battery cell fixing box can be suitable for battery cells with different sizes and specifications by the arrangement, and the universality of the battery cell fixing box is effectively improved.

In the present embodiment, please refer to fig. 1 to fig. 3, the two sides of the partition plate 20 are respectively provided with first inserting-connecting portions 21, and each first inserting-connecting portion 21 is inserted into each guiding portion 1221 correspondingly. After inserting guide 1221 through first grafting portion 21, make baffle 20 can slide along guide 1221, realize adjusting the accommodation space size of holding chamber 131, simultaneously, correspond the grafting through first grafting portion 21 and guide 1221 and also can improve the assembly stability of each baffle 20 to make each baffle 20 effectively play the support fixed action to electric core.

Specifically, as shown in fig. 1 to 5, to further improve the assembly stability of each partition 20, the box 10 is provided with a plurality of guiding portions 1221 on two opposite inner walls from top to bottom, and correspondingly, two sides of the partition 20 are provided with a plurality of first inserting portions 21 from top to bottom, and are inserted into the guiding portions 1221 through the first inserting portions 21.

It should be noted that the figures only show the case that the two guiding portions 1221 are respectively disposed on the two opposite inner walls of the box 10 and the two first inserting portions 21 are respectively disposed on the two sides of the partition 20, but the invention is not limited thereto, and the guiding portions 1221 and the first inserting portions 21 may be provided in different numbers according to the specific sizes of the box 10 and the partition 20, and are not limited thereto.

In the present embodiment, please refer to fig. 1 to fig. 3, the partition board 20 has a first board surface 22 and a second board surface 23 which are opposite to each other, and the first board surface 22 and the second board surface 23 are both attached with a cushion pad 24. All paste through first face 22 at baffle 20 and second face 23 and be equipped with blotter 24, can realize electric core and the soft contact of baffle 20 to electric core and the hard extrusion of baffle 20 and lead to electric core to damage when preventing the battery module from bumping.

Alternatively, cushion pad 24 is a foam pad or a soft gel pad.

Alternatively, the guide portions 1221 are guide grooves or guide holes.

In this embodiment, please refer to fig. 1, fig. 2, fig. 4, and fig. 5, the box 10 includes a first frame 11 and a second frame 12, the first frame 11 and the second frame 12 are slidably sleeved to form the cavity 13, the first frame 11 includes a first bottom plate 111 and two first side plates 112 respectively connected to two opposite sides of the first bottom plate 111, the second frame 12 includes a second bottom plate 121 and two second side plates 122 respectively connected to two opposite sides of the second bottom plate 121, the two second side plates 122 are respectively provided with a guiding portion 1221, and the two first side plates 112 are respectively provided with consecutive portions 1121 corresponding to the guiding portions 1221 and consecutively arranged. Cup joint through

first support body

11 and 12 slidable ground of second support body, the battery module of the different length dimensions of the fixed case of above-mentioned electric core can produce as required carries out length adjustment to make the applicable battery module in different length dimensions of the fixed case of above-mentioned electric core, further improve the universal performance of the fixed case of above-mentioned electric core.

Specifically, after the first frame 11 and the second frame 12 are sleeved, for a portion of the guide portion 1221 blocked by the first side plate 112, the first insertion portion 21 of each partition 20 may be inserted into the portion of the guide portion 1221 after passing through the linking portion 1121, so that each partition 20 can continuously slide along the guide portion 1221. The structure of the consecutive portion 1121 is matched with the guiding portion 1221 to achieve the above-mentioned setting function, for example, when the guiding portion 1221 is a guiding groove, the consecutive portion 1121 matched with the guiding portion 1221 also adopts a similar groove structure, so that the stroke of the partition board 20 is continuous and unimpeded during the sliding process.

It should be noted that, in order to prevent the sleeving structure of the first frame 11 and the second frame 12 from hindering the movement of the partition 20, after the first frame 11 and the second frame 12 are sleeved with each other, the consecutive portion 1121 and the guiding portion 1221 are partially overlapped, and for the portion where the consecutive portion 1121 and the guiding portion 1221 are overlapped, the partition 20 may pass through the consecutive portion 1121 and then be in sliding fit with the guiding portion 1221, so that the partition 20 can effectively move along the length direction of the box 10.

Specifically, the case 10 further includes a cover plate covering both the first frame 11 and the second frame 12.

In this embodiment, please refer to fig. 1, fig. 2, fig. 4, and fig. 5, the first frame 11 further includes a third bottom plate 113 and two third side plates 114 respectively connected to two opposite sides of the third bottom plate 113, the third bottom plate 113 and the first bottom plate 111 are disposed in parallel at an interval, and each third side plate 114 and each first side plate 112 are disposed in parallel at an interval, so as to form an assembly gap 116 for inserting the second frame 12. After the second frame body 12 is inserted into the assembly gap 116, the second bottom plate 121 is limited between the first bottom plate 111 and the third bottom plate 113, and the second side plate 122 is limited between the first side plate 112 and the third side plate 114, so that the second frame body 12 and the first frame body 11 can only move relatively along the length direction of the battery cell fixing box 10, and the assembly stability of the first frame body 11 and the second frame body 12 is effectively improved.

In the present embodiment, please refer to fig. 1, fig. 2, fig. 4 and fig. 5, a sliding limiting structure is disposed between the first frame 11 and the second frame 12. Through be equipped with slip limit structure between first support body 11 and second support body 12, can prevent effectively that first support body 11 and second support body 12 from appearing the condition that breaks away from each other in the mutual slip in-process, effectively improve first support body 11 and second support body 12 assembly stability.

In the present embodiment, please refer to fig. 1, fig. 2, fig. 4 and fig. 5, the sliding position limiting structure is a structure in which a position limiting hole 115 is matched with a position limiting block 124, and specifically, to prevent the sliding position limiting structure from interfering with the movement of the partition board 20, the position limiting holes 115 are respectively formed in the two third side plates 114, and the position limiting blocks 124 matched with the position limiting holes 115 are respectively formed in the two second side plates 122; or, the first base plate 111 is provided with a limiting hole 115, and the second base plate 121 is provided with a limiting fixture block 124 matched with the limiting hole 115; or, a limiting hole 115 is formed on the third base plate 113, and a limiting block 124 matched with the limiting hole 115 is arranged on the second base plate 121; so as to realize the mutual sliding limit of the first frame body 11 and the second frame body 12.

It should be noted that the limiting hole 115 is not limited to be disposed on the first frame 11, and similarly, the limiting block 124 is not limited to be disposed on the second frame 12, and the limiting hole 115 may also be disposed on the second frame 12 and the limiting block 124 may be disposed on the first frame 11, so that the mutual sliding limitation between the first frame 11 and the second frame 12 can also be achieved.

In this embodiment, please refer to fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6, the second frame 12 further includes an end plate 123, each guiding portion 1221 penetrates through one end of each second side plate 122 away from the first frame 11 to form a socket, a plurality of second inserting portions 1231 are disposed on the end plate 123, and each second inserting portion 1231 is inserted into each socket correspondingly. Specifically, the second insertion part 1231 is vertically provided to the surface of the end plate 123. When the battery module is assembled, firstly, the battery core and the partition plates 20 are sequentially and alternately arranged in the cavity 13 of the box body 10, and then the inserting parts are correspondingly inserted into the inserting ports, so that the end plate 123 is arranged at the end part of the second frame body 12 far away from the first frame body 11, and then the cover plate is simultaneously covered on the first frame body 11 and the second frame body 12, namely the assembly of the battery module is completed; the disassembly process of the battery module is opposite to the aforementioned assembly process, and will not be described in detail herein. It is thus clear that the detachable installation of end plate 123 is realized in order to peg graft in the interface through second grafting portion 1231, effectively improves battery module's dismouting convenience.

Example two

Referring to fig. 7 and 8, the difference between the first embodiment and the first embodiment is that the sliding sleeve structure of the first frame 11 and the second frame 12 is different, in the present embodiment, the side of each second side plate 122 away from the second bottom plate 121 is respectively bent inward to form flanges 1222, and each flange 1222 is correspondingly abutted against the side of each first side plate 112 away from the first bottom plate 111. After the second frame body 12 and the first frame body 11 are slid to each other and sleeved, the second bottom plate 121 and the first bottom plate 111 are attached to each other, and the corresponding butt joint is formed at one side of each flange 1222 and each first side plate 112 away from the first bottom plate 111, so that the second frame body 12 and the first frame body 11 can only move relative to each other along the length direction of the battery cell fixing box 10, and the assembly stability of the first frame body 11 and the second frame body 12 is effectively improved.

In this embodiment, please refer to fig. 7 and 8, in order to prevent the sliding limiting structure from interfering with the movement of the partition 20, a limiting hole 115 is formed on the first base plate 111, and a limiting block 124 matched with the limiting hole 115 is formed on the second base plate 121, so as to achieve the mutual sliding limiting of the first frame 11 and the second frame 12.

The utility model provides a battery module, includes a plurality of electric cores and the fixed case of above-mentioned electric core, each electric core holding is in each holding chamber 131 of the fixed case of electric core.

Because the battery module adopts the embodiment of the battery cell fixing box, the battery module at least has all the beneficial effects of the embodiment, and the description is omitted.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a case is fixed to electric core, includes the box that baffle group and have the cavity, baffle group includes one or more baffle, each the baffle will the cavity is separated and is formed a plurality of holding chambeies that are used for the holding of electric core, its characterized in that: the box body is provided with guide parts on two opposite inner walls respectively, the guide parts extend along the length direction of the box body, and each partition plate is in sliding fit with each guide part simultaneously so as to enable each partition plate to move along the length direction of the box body.

2. The cell securing box according to claim 1, wherein: and two sides of the partition plate are respectively provided with a first inserting part, and each first inserting part is correspondingly inserted into each guide part.

3. The cell securing box according to claim 1, wherein: the baffle has first face and the second face that deviates from mutually, first face with all paste on the second face and be equipped with the blotter.

4. The cell securing box according to claim 1, wherein: the guide part is a guide groove or a guide hole.

5. The cell fixing box according to any one of claims 1 to 4, characterized in that: the box includes first support body and second support body, first support body with second support body slidable cup joints and forms the cavity, first support body includes first bottom plate and connects respectively in two first curb plates of the relative both sides of first bottom plate, the second support body includes the second bottom plate and connects respectively in two second curb plates of the relative both sides of second bottom plate, two the second curb plate is equipped with respectively the guide part, two first curb plate is seted up respectively with each the guide part corresponds links up the portion that links up the setting.

6. The cell securing box according to claim 5, wherein: the first frame body further comprises a third bottom plate and two third side plates which are respectively connected to two opposite sides of the third bottom plate, the third bottom plate and the first bottom plate are arranged in parallel at intervals, and each third side plate and each first side plate are correspondingly arranged in parallel at intervals to form an assembly gap for inserting the second frame body.

7. The cell securing box according to claim 5, wherein: one side of each second side plate, which is far away from the second bottom plate, is bent inwards to form flanges, and each flange is correspondingly abutted against one side of each first side plate, which is far away from the first bottom plate.

8. The cell securing box according to claim 5, wherein: a sliding limiting structure is arranged between the first frame body and the second frame body.

9. The cell securing box according to claim 5, wherein: the second frame body further comprises end plates, each guide portion penetrates through one end, far away from the first frame body, of each second side plate to form an inserting port, a plurality of second inserting portions are arranged on the end plates, and each second inserting portion is correspondingly inserted into each inserting port.

10. A battery module, its characterized in that: comprising a plurality of cells and a cell fastening box according to any of claims 1 to 9, each of the cells being accommodated in a respective accommodating cavity of the cell fastening box.