CN215220945U

CN215220945U - Battery module

Info

Publication number: CN215220945U
Application number: CN202121332818.5U
Authority: CN
Inventors: 兰春旺
Original assignee: Poweroad Xiamen Renewable Energy Technology Co ltd
Current assignee: Fujian Liangdao New Energy Development Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-12-17
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to a battery technology field relates to a battery module especially. The utility model discloses a battery module, including a plurality of electric cores, first support and second support set up in opposite directions, a plurality of electric cores set up side by side between first support and second support, the head and the tail end of electric core is respectively towards first support and second support, be equipped with the convergent flow piece on the outer terminal surface of first support and second support respectively, the convergent flow piece is connected with the electrode electricity of the head and the tail end of a plurality of electric cores respectively, still be equipped with a plurality of outwardly extending's supporting shoe on the outer terminal surface of first support and second support respectively, the outer tip salient in the arbitrary position of convergent flow piece of highly satisfying the supporting shoe of supporting shoe. The utility model discloses can prevent well that battery module from touching and the battery short circuit that arouses with the plane mistake of outer conductor when placing, the security is high.

Description

Battery module

Technical Field

The utility model belongs to the technical field of the battery, specifically relate to a battery module.

Background

With the increasing environmental pollution and the increasing shortage of energy, many countries are in great development of electric vehicles to replace fuel vehicles. One of the key technologies of electric vehicle development is a power battery, and the power battery applied to the electric vehicle is mainly formed by a battery module, and the battery module is assembled by matching corresponding control protection components through series and parallel combination of single battery cores according to the use requirement, so that the installation and maintenance are convenient, and the use requirement of a battery pack can be met.

Although the outer end face of the support of the existing battery module is also provided with the supporting block, the height of the supporting block is too low (generally about 1 mm), and the corners of the nickel sheet/copper nickel sheet arranged on the outer end face of the support are not welded, and often deform and tilt to exceed the supporting block.

Disclosure of Invention

An object of the utility model is to provide a high battery module of security is used for solving the technical problem that the aforesaid exists.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a battery module, including a plurality of electric cores, first support and second support set up in opposite directions, a plurality of electric cores set up side by side between first support and second support, the both ends of electric core are respectively towards first support and second support, be equipped with the piece that converges on the outer terminal surface of first support and second support respectively, the piece that converges is connected with the electrode electricity at the both ends of a plurality of electric cores respectively, still be equipped with a plurality of supporting shoes that outwards extend on the outer terminal surface of first support and second support respectively, the outer tip salient in the optional part of piece that converges of high satisfaction supporting shoe of supporting shoe.

Further, the bus plates comprise series-parallel nickel plates and/or series-parallel copper nickel plates.

Furthermore, the battery core is 18650 battery cores, and the height of the supporting block is greater than or equal to 2.5 mm.

Further, the battery cell is 26650 battery cell, and the height of the supporting block is greater than or equal to 3.5 mm.

Furthermore, the first support and the second support are respectively provided with a plurality of heat dissipation holes penetrating through the inner end face and the outer end face of the support.

Further, the support block is provided with slots through opposite sides thereof.

Furthermore, the first support is also provided with a first fixing part, the second support is provided with a second fixing part, and the first support and the second support are fixedly connected through the first fixing part and the second fixing part.

Furthermore, the first fixing portion and the second fixing portion are fixed by screw locking.

Further, the first fixing portion is arranged on the side face of the first support, and the second fixing portion is arranged on the side face of the second support.

The utility model has the advantages of:

the utility model discloses an outer tip salient in the arbitrary position of convergent current piece of highly satisfying the supporting shoe of supporting shoe, like this, when placing battery module flat at conductor plane, the supporting shoe supports on conductor plane, and convergent current piece still has certain interval with conductor plane, can not miss the touching and the battery short circuit that arouses with conductor plane, and the security is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a diagram illustrating a first perspective of the novel embodiment of the present invention;

FIG. 2 is a second perspective view of the novel embodiment of the present invention;

FIG. 3 is a block diagram illustrating a third perspective of the novel embodiment of the present invention;

fig. 4 is a structural diagram of a fourth viewing angle according to the new embodiment of the present invention.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 4, a battery module includes a plurality of battery cells 1, a first support 2 and a second support 3, the first support 2 and the second support 3 are disposed opposite to each other, in this embodiment, the battery cells 1 are cylindrical battery cells, positive and negative electrodes are respectively disposed at two ends of the battery cells 1, the plurality of battery cells 1 are disposed between the first support 2 and the second support 3 side by side, two ends of the battery cells 1 respectively face the first support 2 and the second support 3, bus bars are respectively disposed on outer end faces of the first support 2 and the second support 3, specifically, a first bus bar 4 is disposed on the outer end face of the first support 2, a second bus bar 5 is disposed on an outer end face of the second support 3, the first bus bar 4 and the second bus bar 5 are respectively electrically connected to electrodes at two ends of the plurality of battery cells 1, specifically, the first bus bar 4 and the second bus bar 5 are respectively welded to and electrically connected to the electrodes at two ends of the plurality of battery cells 1, more specific construction can be referred to the construction of the existing battery module, which is well established in the art and will not be described in detail.

The outer end faces of the first bracket 2 and the second bracket 3 are respectively provided with a plurality of outwardly extending supporting blocks, specifically, the outer end face of the first bracket 2 is provided with a plurality of outwardly extending first supporting blocks 61, the outer end face of the second bracket 3 is provided with a plurality of outwardly extending second supporting blocks 62, the height h1 of the first supporting block 61 satisfies that the outer end part of the first supporting block 61 protrudes out of any part of the first bus bar 4, the first bus bar 4 includes the deformed first bus bar 4, the height h2 of the second supporting block 62 satisfies that the outer end part of the second supporting block 62 protrudes out of any part of the second bus bar 5, the second bus bar 5 includes the deformed second bus bar 5, so that when the battery module is placed on a conductor plane, the first supporting blocks 61 (when the first bracket 2 is placed towards the conductor plane) or the second supporting blocks 62 (when the second bracket 3 is placed downwards) are supported on the conductor plane, and a certain gap is left between the first bus bar 4 or the second bus bar 5 and the conductor plane, so that the battery short circuit caused by mistaken touch with the conductor plane is avoided, and the safety is high.

The deformed first bus bar 4 and the deformed second bus bar 5 are the deformation, especially the corner deformation and tilting, of the first bus bar 4 and the second bus bar 5 caused by thermal expansion and cold contraction or touch in the production and assembly process in the use process.

In this embodiment, the first bus bar 4 includes a serial-parallel nickel bar 41 and a serial-parallel copper nickel bar 42, and the second bus bar 5 includes a serial-parallel nickel bar 51 and a serial-parallel copper nickel bar 52, and the specific structure is shown in fig. 1-3, but not limited thereto, and in some embodiments, the first bus bar 4 and the second bus bar 5 may also be implemented by using other existing bus bars. The series-parallel connection copper nickel sheet is formed by laminating a nickel sheet and a copper sheet.

In this embodiment, when the battery cell 1 is a 18650 battery cell, the heights h1 and h2 of the first support block 61 and the second support block 62 are preferably greater than or equal to 2.5 mm; when the battery cell 1 is 26650 battery cell, the heights h1 and h2 of the first support block 61 and the second support block 62 are both preferably equal to or greater than 3.5mm, but not limited thereto.

Furthermore, in this embodiment, the first support 2 and the second support 3 are further respectively provided with a plurality of heat dissipation holes 7 penetrating through the inner and outer end surfaces of the support, and through the heat dissipation holes 7, air is convected along the first support 2 and the second support 3, so that the air circulation inside the battery module is good, the heat dissipation effect is improved, and meanwhile, because the heights h1 and h2 of the first support block 61 and the second support block 62 are higher, the heat diffusion is further accelerated, and the heat dissipation effect is improved.

Further, in this embodiment, the first supporting block 61 and the second supporting block 62 are respectively provided with

slots

611 and 621 penetrating through opposite side surfaces thereof, so that heat can be more efficiently dissipated, and the heat dissipation effect is further improved. The number of the slots 611 of the single first support block 61 may be one or more, and when the number of the slots 611 is plural, the plural slots 611 are criss-cross; the number of the slots 621 of the single second supporting block 62 may be one or more, and when the number of the slots 621 is plural, the plural slots 621 are crisscrossed.

Further, in this embodiment, the first support 2 is further provided with a first fixing portion 21 extending to the second support 3, the second support 3 is provided with a second fixing portion 31 extending to the first support 2, and the first support 2 and the second support 3 are fixedly connected through the first fixing portion 21 and the second fixing portion 31, so that when the battery module is carried, the supports are stressed instead of being spot-welded to the bus bar on the battery core 1, and the positive and negative electrodes of the battery cores 1 and 4 and 5 are stressed, thereby better protecting the battery core 1.

In this embodiment, the first fixing portion 21 and the second fixing portion 31 are fastened and fixed by the screw 8, so that the installation, the detachment and the maintenance are easy, and the stability is good, but not limited thereto, in some embodiments, the first fixing portion 21 and the second fixing portion 31 may also be fixed by fastening, welding, bonding, and the like, which can be easily implemented by those skilled in the art, and will not be described in detail.

In this embodiment, the first fixing portion 21 is disposed on the side of the first bracket 2, and the second fixing portion 31 is disposed on the side of the second bracket 3, which does not affect the installation of the internal battery cell 1 and is easy to assemble, but is not limited thereto.

In this embodiment, the first bracket 2 and the second bracket 3 are both rectangular, the first fixing portion 21 is disposed on the side of the long side of the first bracket 2, and the second fixing portion 31 is disposed on the side of the long side of the second bracket 3.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a battery module, includes a plurality of electric cores, first support and second support set up in opposite directions, and a plurality of electric cores set up side by side between first support and second support, and the both ends of electric core are respectively towards first support and second support, are equipped with the conflux piece on the outer terminal surface of first support and second support respectively, and the piece that converges is connected its characterized in that with the electrode electricity at the both ends of a plurality of electric cores respectively: the outer end faces of the first support and the second support are respectively provided with a plurality of supporting blocks extending outwards, and the heights of the supporting blocks meet the requirement that the outer end parts of the supporting blocks protrude out of any parts of the confluence sheet.

2. The battery module of claim 1, wherein: the confluence sheet comprises series-parallel connection nickel sheets and/or series-parallel connection copper nickel sheets.

3. The battery module of claim 2, wherein: the battery core is 18650 battery cores, and the height of supporting shoe is more than or equal to 2.5 mm.

4. The battery module of claim 2, wherein: the battery cell is 26650 battery cell, and the height of supporting shoe is more than or equal to 3.5 mm.

5. The battery module of claim 1, wherein: the first support and the second support are also respectively provided with a plurality of heat dissipation holes penetrating through the inner end face and the outer end face of the support.

6. The battery module according to claim 1 or 5, characterized in that: the support block is provided with a slot running through the opposite side faces thereof.

7. The battery module of claim 1, wherein: the first support is further provided with a first fixing portion, the second support is provided with a second fixing portion, and the first support and the second support are fixedly connected through the first fixing portion and the second fixing portion.

8. The battery module of claim 7, wherein: the first fixing part and the second fixing part are fixed through screw locking.

9. The battery module of claim 7, wherein: the first fixing part is arranged on the side face of the first support, and the second fixing part is arranged on the side face of the second support.