CN217719840U - Battery module assembly support of bipolar post electricity core - Google Patents

Abstract

This scheme discloses a battery module assembly support of bipolar post electricity core in battery PACK field, including the support body, rectangular array has arranged a plurality of utmost point post mounting hole on the support body, and adjacent two are equipped with the multiunit between the utmost point post mounting hole and are used for the spacing arch to the confluence piece, and the arch is higher than the surface of support body, multiunit bellied array orientation is the same with the array orientation of utmost point post mounting hole. This scheme mainly lies in the assembly that realizes multilayer battery module through utmost point post mounting hole with prior art's difference, because the external diameter of utmost point post is less than the external diameter of main part, fix the support in utmost point post position and support with the tip of adjacent two-layer bipolar post electricity core main part and hold, make the bus bar inseparable with utmost point post contact, also make support after the assembly can not take place the dislocation with bipolar post electricity core or not hard up simultaneously, and then do not have the clearance between the utmost point post of connection, the stability of battery module inner structure has been improved, strengthen the holistic rigidity intensity of battery module.

Description

Battery module assembly support of bipolar post electricity core

Technical Field

The utility model belongs to battery PACK field, in particular to battery module assembly support of bipolar post electricity core.

Background

The battery with the model number of 32700 is formed by assembling a battery cell body with a bipolar column (hereinafter referred to as a bipolar column battery cell), generally, the bipolar column battery cell is cylindrical, as shown in fig. 1, the bipolar column battery cell comprises a main body (2) and a positive column (3) and a negative column (1) which are respectively arranged at two ends of the main body (2), and the positive column and the negative column of the two bipolar column battery cells are mutually spliced.

Battery pack is generally referred to as packaging, packaging and assembly, making up the finished battery pack for actual use. Present bipolar post battery's PACK structure adopts the PCB board as battery holder assembly battery module, integrated voltage sampling and fixed electric core mostly, but this kind of assembly methods's is with high costs, mainly embodies and need make according to actual conditions die sinking when making the PCB board, and the cost is high, has increased manufacturing cost.

The low-cost mode has two kinds, one, does not use the support, but the support plays the effect of installation simple operation and reinforcement electric core when being used for assembling battery module, if do not use the support then must exist the battery module internal stability after the assembly poor, the problem of transfer, disintegration easily appears when meetting strong vibration. 2. Adopt conventional support to carry out the assembly of bipolar post electricity core, conventional support is generally the assembly that is used for not taking the electric core of utmost point post, and the equipartition has a plurality of mounting hole on the current conventional support for when electric core installation, fix electric core monomer in the mounting hole, so the aperture of mounting hole and electric core monomer's external diameter are equivalent.

Because the utmost point post inseparable combination between the electric core monomer of establishing ties will be guaranteed during the assembly of bipolar post electric core, will make moreover the confluence piece tiling of connecting between two utmost point posts and closely combine with utmost point post, so there is following not enough when conventional support is used for assembling bipolar post electric core: (1) The polar columns cannot be fixed, so that gaps exist among the polar columns, the stability of the interior of the assembled battery is low, the battery is easy to loosen, the normal use of the battery is influenced, and the frequency of after-sale maintenance is increased; (2) When the bus bar is installed, it is difficult to ensure that the bus bar is in a flat state, a high degree of attention and certain assembly experience are required, and the assembly difficulty is undoubtedly increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery module assembly support of bipolar post electricity core to the problem that stability is low when the support among the solution prior art is used for installing multilayer battery module.

The battery module assembling support comprises a support body, wherein a plurality of pole mounting holes are arranged in a rectangular array on the support body, a plurality of groups of bulges are arranged between two adjacent columns of pole mounting holes and used for limiting the bus-bar piece, and the bulges are higher than the surface of the support body and are the same as the arrangement direction of the pole mounting holes.

The working principle of the scheme is as follows: when the battery module is assembled, the conventional battery bracket is arranged on the outermost two end faces of the battery module, and one end of the battery cell positioned on the outermost layer is fixed in the mounting hole of the conventional bracket. The support in the scheme is configured on the middle layers of the battery modules, such as 2 nd, 3 rd and 4 th layers 8230, 8230and n layers, so that the series connection of the battery cells is realized.

The support use of this scheme specifically is: receive bellied chucking fixed action can be earlier with the busbar card between two adjacent archs, the busbar covers on utmost point post mounting hole this moment, has the hole that supplies utmost point post to pass on the busbar, and this hole and utmost point post mounting hole coincide. Double-sided adhesive tape may also be used to bond the bus bar to the bracket in order to enhance the fit of the bus bar to the bracket.

Then, with the one end of bipolar post electricity core according to the parallelly connected quantity requirement of battery module after putting into the appointed mounting hole of conventional battery holder, accomplish the assembly of the first layer of battery module, the utmost point post of the bipolar post electricity core other end then passes the utmost point post mounting hole of this scheme support body, and makes the tip laminating of this one end on the backward flow piece, the piece that converges this moment is used for parallelly connected and the voltage sampling of electric core.

When assembling the second layer of the bipolar column battery core, connecting the polar column of the second layer of the bipolar column battery core into the polar column of the first layer of the bipolar column battery core, and assembling the third layer, the fourth layer and the nth layer of the bipolar column battery core according to the same operation.

The beneficial technical effect of this scheme is: this scheme mainly lies in the assembly that realizes multilayer battery module through utmost point post mounting hole with prior art's difference, because the external diameter of utmost point post is less than the external diameter of main part, fix the support in utmost point post position and support with the tip of adjacent two-layer bipolar post electricity core main part and hold, make the bus bar inseparable with utmost point post contact, also make support after the assembly can not take place the dislocation with bipolar post electricity core or not hard up simultaneously, and then do not have the clearance between the utmost point post of connection, the stability of battery module inner structure has been improved, strengthen the holistic rigidity intensity of battery module.

Furthermore, one side of the bracket body, which is far away from the bulge, is provided with criss-cross reinforcing ribs. When the number of the assembled bipolar column battery cores is large, the bearing of the support is increased, the support strength of the support can be improved due to the arrangement of the reinforcing ribs, and deformation is avoided.

Further, the pole mounting holes are positioned at the intersection of the reinforcing ribs. The thickness at the intersection of strengthening rib is thicker, sets up utmost point post mounting hole and is less to support bearing strength's influence.

Furthermore, the edges of two opposite sides of the support body are provided with battery cell protection lugs higher than the surface of the support body, and the battery cell protection lugs are positioned on one side where the confluence pieces are positioned. Specifically, the battery cell protection ears and the two sides of the extension direction of the bus bar piece play a role in protecting the battery cell of the double-pole column positioned on the outer side, and cannot interfere with the installation of the bus bar piece.

Further, the number of each set of protrusions is four, and one side of each protrusion, which is in contact with the bus bar, is a straight edge. The straight edges are abutted against the rectangular bus bars, so that the bus bars can be better fixed and limited, the position of the bus bars can be conveniently and accurately positioned by workers, and the bus bars can be more easily paved on the support.

Furthermore, a plurality of lightening holes are formed in the support body and are located among the four protrusions.

Furthermore, the shape of the bulge is a circular circumscribed right-angled triangle, and the arc edge of the bulge is superposed with the edge of the lightening hole. Such a structure is more compact.

Further, the thickness of the support body is 1-2 mm.

Further, the thickness of support body is 1.2mm.

Drawings

Fig. 1 is a schematic structural diagram of a bipolar column battery cell according to the present invention;

fig. 2 is a front view of a battery module assembly bracket of a bipolar column battery cell of the present invention;

FIG. 3 is a front view of the other side of FIG. 2;

fig. 4 is an installation diagram of a bus bar when the battery module assembling bracket of the bipolar column battery cell of the present invention is used;

fig. 5 is a usage state diagram of the battery module assembling bracket of the bipolar column battery cell of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the battery comprises a negative pole post 1, a main body 2, a positive pole post 3, a support body 4, a battery cell protection ear 5, a pole mounting hole 6, a lightening hole 7, a protrusion 8, a reinforcing rib 9, a bus bar piece 10 and a conventional support 11.

The embodiment is basically as shown in the attached figures 2 and 3: the utility model provides a battery module assembly support of bipolar post electricity core, includes support body 4, and the thickness of support body 4 is 1 ~ 2mm, preferred 1.2mm, is the rectangle array on the support body 4 and has arranged a plurality of utmost point post mounting hole 6, and adjacent two are equipped with the multiunit between the utmost point post mounting hole 6 and are used for the spacing arch 8 of piece 10 that converges, and arch 8 exceeds the surface of support body 4, multiunit protruding 8's array orientation is the same with utmost point post mounting hole 6's array orientation.

The number of the protrusions 8 in each group is four, and the protrusions 8 are in the shape of a circular circumscribed right-angled triangle; circular lightening holes 7 are formed among the four bulges 8, and the arc edges of the bulges 8 are overlapped with the edges of the lightening holes 7.

Two relative edges of support body 4 are equipped with the electric core protection ear 5 that exceeds the surface of support body 4, and electric core protection ear 5 is located one side at conflux piece 10 place, and one side that support body 4 deviates from protruding 8 is equipped with vertically and horizontally staggered's strengthening rib 9, and utmost point post mounting hole 6 is located the junction of strengthening rib 9.

In the present embodiment, for convenience of distinction, the thinner end of the terminal is used as the negative terminal 1, and the thicker end is used as the positive terminal 3. As shown in fig. 4 and 5, when the battery module is assembled, the conventional battery holder is disposed on the outermost both end surfaces of the battery module, and the main body 2 of the battery cell located on one outermost layer is fixed in the mounting hole of the conventional holder 11. And the support in this scheme disposes in the intermediate level of battery module, realizes the series connection of electric core.

The confluence piece 10 is pasted on the support by adopting double-faced adhesive tape, and is matched with the bulge 8 for limiting, and a hole on the confluence piece 10 is coincided with the pole mounting hole 6. The positive post 3 of bipolar post electric core passes hole and utmost point post mounting hole 6 on the conflux sheet 10, and the negative pole post 1 of the bipolar post electric core of another layer is pegged graft in positive post 3, and all bipolar post electric cores are all fixed the back, fix another conventional support 11 at last and accomplish the assembly in another outmost electric core's main part 2 is fixed in conventional support 11.

Claims (9)

1. The utility model provides a battery module assembly support of bipolar post electricity core which characterized in that: including the support body, rectangular array has arranged a plurality of utmost point post mounting hole on the support body, and adjacent two are listed as and are equipped with the multiunit between the utmost point post mounting hole and be used for the spacing arch of piece that converges, and the arch is higher than the surface of support body, multiunit bellied range direction is the same with the range direction of utmost point post mounting hole.

2. The battery module assembling bracket for a bipolar column battery cell according to claim 1, wherein: and one side of the bracket body, which deviates from the bulge, is provided with criss-cross reinforcing ribs.

3. The battery module assembling bracket of a bipolar column cell of claim 2, wherein: the pole mounting holes are positioned at the intersection of the reinforcing ribs.

4. The battery module assembling bracket for a bipolar column battery cell according to claim 2, wherein: the edge of two of them opposite sides of support body is equipped with the electric core protection ear that exceeds support body surface, and electric core protection ear is located one side at confluence piece place.

5. The battery module assembling support of the bipolar column cell of any one of claims 1 to 4, wherein: the number of each group of the protrusions is four, and one side of each protrusion, which is in contact with the bus bar, is a straight edge.

6. The battery module assembling bracket for a bipolar column battery cell according to claim 5, wherein: the support body is provided with a plurality of lightening holes, and the lightening holes are located among the four bulges.

7. The battery module assembling bracket for a bipolar column battery cell according to claim 6, wherein: the shape of the bulge is a circular circumscribed right-angled triangle, and the arc edge of the bulge is overlapped with the edge of the lightening hole.

8. The battery module assembling bracket of a bipolar column cell of claim 7, wherein: the thickness of the bracket body is 1-2 mm.

9. The battery module assembling bracket of a bipolar column cell of claim 8, wherein: the thickness of support body is 1.2mm.

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