It is a kind of to use the battery connecting construction with fin cell connector
Technical field
The invention belongs to battery group technology field, more specifically to a kind of using with fin cell connector
Battery connecting construction.
Background technology
With the getting worse of energy and environmental problem, electric vehicle is the important directions of future automobile development.Power electric
Pond group is electric vehicle important component, is made of multiple single battery connection in series-parallel, the quality of connection between single battery is to battery
The performance of group has important influence.In the prior art, the both ends of cell connector connect the pole shape of the battery of monomer respectively
Bunchiness parallel relationship.Cell connector is thicker and the electric current on cell connector and temperature distribution is non-uniform.
Invention content
Present invention aim to address problem of the existing technology, provide one kind be conducive to battery electrode column and connection sheet it
Between welding, improve production efficiency, reduce production cost it is a kind of use the battery connecting construction with fin cell connector, can
Obtain more uniform electric current and Temperature Distribution.
To achieve these goals, the technical solution taken of the present invention is:What is provided is this using band fin battery company
The battery connecting construction of contact pin, the cell connector including multiple batteries and connection battery, the cell connector include first
Connection sheet and the second connection sheet, first connection sheet include substrate, multiple fins, institute are connected in one long side of substrate
State fin be equipped with the location hole that pole centre bore is correspondingly connected on the battery, each between the fin and the substrate
It is connected by the curved bridge transition that connects.
To make above-mentioned technical proposal more detailed and specific, the present invention also provides optimization technique sides further below
Case, to obtain satisfied practical function:
The curved bridge that connects includes the first linkage section being connect with the substrate side, the second connection being connect with the fin
Section and arc linkage section, first linkage section have upward extended height, first connection with second linkage section
Section is connect with the second linkage section upper end by the arc linkage section.
The location hole on the fin is passed through to be fixedly connected with battery electrode column centre bore by screw, each wing
The width of piece is slightly larger than the width of the battery electrode column of the battery.
Sampling sheet is equipped between the adjacent fins.
First connection sheet is identical with the second connection leaf length, the number of fin phase corresponding with the battery number
Together.
Second connection sheet is crimped together using compound compression joint technique and the substrate (14) of the first connection sheet (1).
The first connection sheet thickness is 0.1-1.0mm.
The second connection sheet thickness is 0.5-2.0mm.
The width of second connection sheet is more than the width of first connection sheet.
First connection sheet and the second connection sheet are the integrally formed monolithic construction of punching.
Compared with prior art, the present invention it has the following advantages:The present invention is connected using the battery with fin cell connector
Binding structure can facilitate being welded to connect between battery electrode column and connection sheet, and production efficiency is high, and production cost is low;Each fin shape
Shape is consistent, and moulding process is simple, and the number of fin can arbitrarily be set according to the quantity of battery series-parallel connection, and versatility is good;Electricity
Current distribution of the pond in charge and discharge process on all fins is consistent, and temperature is uniform;The curved design for connecing bridge is reduced to battery height
The requirement of consistency is spent, reduces the difficulty of battery packaging technology;According to the wider of the second connection sheet of needs of heat dissipation design, have
Conducive to the heat dissipation of battery pack, ensure its temperature uniformity.
Description of the drawings
The content expressed by the attached drawing of this specification and the label in figure are briefly described below:
Fig. 1 is battery connecting construction schematic diagram of the present invention;
Fig. 2 is the first connection sheet and the second connection sheet connection diagram;
Fig. 3 is the first connection sheet structure diagram;
In figure label for:1st, the first connection sheet, 11, fin, 12, location hole, 13, it is curved connect bridge, 14, substrate, 15, sampling
Piece, the 2, second connection sheet, 3, battery.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to the specific embodiment of the present invention further details of
Explanation.
The present invention is a kind of to use the battery connecting construction with fin cell connector, as shown in Figure 1, including multiple batteries 3,
By cell connector connection battery 3, the cell connector in the present invention includes the first connection sheet 1 and the second connection sheet 2, such as schemes
Shown in 2.Wherein the first connection sheet 1 is made of fin 11, location hole 12, curved bridge 13, substrate 14 and the sampling sheet 15 of connecing, such as Fig. 3 institutes
Show, be connected with multiple fins 11 in 14 1 long side of substrate, fin 11 is equipped with what is be correspondingly connected with pole centre bore on battery 3
Location hole 12 connects 13 transition of bridge connection between each fin 11 and substrate 14 by curved.Electricity is not only contributed to using the connection sheet
Welding between pond pole and connection sheet improves production efficiency, reduces production cost, at the same also solve in connection sheet electric current and
The problem of temperature distribution is non-uniform.And the curved bridge 13 that connects occurs having preferably when deviation and cell expansion deformation in cell height direction
Regulatory function, ensure that cell connector is not subject to larger tensile stress or compression.
In the present invention, as shown in Figure 3, the curved bridge 13 that connects includes the first linkage section being connect with 14 side of substrate, with fin
The second linkage section and arc linkage section of 11 connections, the first linkage section and the second linkage section have upward extended height (i.e. edge
Cell height direction extends), the first linkage section and the second linkage section upper end by arc linkage section connect.
During connection positioning, pass through the location hole 12 on fin 11 that company is fixed with battery electrode column centre bore by screw
It connects.In design, the width of each fin 11 is welded to connect slightly larger than the width of the battery electrode column of battery 3 with facilitating.Each wing
Piece 11 is connect with battery electrode column upper surface using laser welding process, to ensure that the connection between battery and cell connector is reliable
Property.
The present invention uses the battery connecting construction with fin cell connector, and sampling sheet 15 is located at every group of adjacent fin 11
Between, convenient when battery uses real-time sampling monitoring accurately can be carried out to battery.
14 and second connection sheet 2 of substrate of first connection sheet 1 is linked together using the process of compound crimping, in pressure
Conjunction state.First connection sheet 1 is identical with 2 length of the second connection sheet, and the number of fin 11 is corresponding identical with battery number.Fin 11
Number can arbitrarily be adjusted according to the mode of battery series-parallel connection, therefore the adaptability of this connection sheet is good, easy to use.
First connection sheet, 1 thinner thickness, is conducive to the welding between battery electrode column and connection sheet, can improve production efficiency,
Relative reduction production cost.Preferably, 1 thickness of the first connection sheet is 0.1-1.0mm, 2 thickness of the second connection sheet is 0.5-
2.0mm, width are designed according to connection sheet overcurrent capability, may be set to 10-60mm, bending and molding.
Preferably, the width design of the second connection sheet 2 can be more than the width of the first connection sheet 1, to be conducive to battery pack
Temperature uniformity radiates, and ensures battery pack performance.
In the present invention, the first connection sheet 1 and the second connection sheet 2 are the integrally formed monolithic construction of punching, and molding is simple
It is single, it is at low cost, and structural stability is good.
First connection sheet 1 and the second connection sheet 2 are conductive preferable metal material, such as fine aluminium, red copper or nickel strap.The
1 and second connection sheet of a connecting piece, 2 material can be identical, can not also be identical.
The present invention uses the battery connecting construction with fin cell connector, can facilitate between battery electrode column and connection sheet
It is welded to connect, production efficiency is high, and production cost is low;Each 11 shape of fin is consistent, and moulding process is simple, and the number of fin 11
It can arbitrarily be set according to the quantity of battery series-parallel connection, versatility is good;Electric current of the battery in charge and discharge process on all fins
Distribution is consistent, and temperature is uniform;The curved design for connecing bridge 3 reduces the requirement to cell height consistency, reduces battery assembling work
The difficulty of skill;It can be designed according to the second connection sheet of needs 2 of heat dissipation wider, be conducive to the heat dissipation of battery pack, ensure its temperature
Spend uniformity.
The present invention is exemplarily described above in conjunction with attached drawing, but the present invention is not limited to aforesaid way, only
It wants the improvement of the various unsubstantialities of methodology and technical solution progress using the present invention or directly applies to other occasions
, it all falls in protection scope of the present invention.