CN213425145U - FFC (flexible flat cable) connecting device for battery cell - Google Patents

Abstract

The utility model discloses a FFC connecting device for electric core, including electric core, be provided with circuit convergence board on the electric core, just circuit convergence board carries out the electricity with electric core and is connected, circuit convergence board still connects BMS protection shield through FFC coupling assembling, FFC coupling assembling includes the FFC winding displacement, and passes through the FFC winding displacement carries out being connected of circuit convergence board and BMS protection shield, simultaneously the both ends of FFC winding displacement still set up spliced terminal respectively, and still be provided with the inserting groove on circuit convergence board and the BMS protection shield respectively, just inserting terminal can insert the inserting groove and carry out the electricity and connect. Utilize the FFC winding displacement to replace traditional electric wire, guarantee signal acquisition and current transport's stability, but also have soft, the bending folding at will, thickness is thin, small, connect advantages such as simple, the dismantlement is convenient, conveniently carry out the adjustment of the position of BMS protection shield according to actual demand.

Description

FFC (flexible flat cable) connecting device for battery cell

Technical Field

The utility model relates to an electricity core field especially relates to a compound FFC connecting device that is used for electric core.

Background

The battery cell refers to a single electrochemical battery cell containing a positive electrode and a negative electrode, and is not generally used directly, a common application scene is that a plurality of battery cells are matched with a protection circuit board to form a battery, and a common lithium ion secondary rechargeable battery is formed in the same way. The battery core is an electric storage part in the rechargeable battery, and the protection circuit board is also called as a protection board, can limit the lowest voltage and the highest charging current, has the functions of overheat protection and limitation of the highest input voltage, and plays a role in protecting the lithium battery. The general use method of electric core does, adopts ordinary electric wire to carry out the transmission of the electric current and the signal of protection shield and circuit board, but this kind of connected mode leads to transmission efficiency not high, easily leads to the condition that the electric wire generates heat to take place, influences electric core electric quantity loss then and increases. Particularly, in the field of power batteries of two-wheeled vehicles, the transmission loss of signals and current caused by common wires is more serious.

Therefore, the present invention is directed to a FFC connection device for a battery cell.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages, an object of the present invention is to provide an FFC connecting device for an electrical core.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a FFC connecting device for electric core, includes electric core, be provided with the line on the electric core and converge the plywood, just the line converges the plywood and carries out the electricity with electric core and be connected, the line converges the plywood and still connects the BMS protection shield through FFC coupling assembling, FFC coupling assembling includes the FFC winding displacement, and passes through the FFC winding displacement carries out being connected of line converge plywood and BMS protection shield, simultaneously the both ends of FFC winding displacement still set up spliced terminal respectively, and still be provided with the inserting groove on line converge plywood and the BMS protection shield respectively, just inserting terminal can insert the inserting groove and carry out the electricity and connect.

Preferably, the plug terminals at the two ends of the FFC flat cable are different in type, and the plug grooves on the circuit converging plate and the BMS protection plate can be matched with the plug terminals of different types. Plug terminals and plug grooves are respectively provided with two groups, and the two groups of models are different, so that the only connection mode can be ensured, and the signal acquisition and the small current passing stability can be facilitated.

Preferably, the two plug terminals and the two plug grooves may be respectively provided with the same type. Namely, the FFC flat cable is set to be of the same type, so that the follow-up FFC flat cable is ensured to be replaced timely and conveniently.

Preferably, be provided with sawtooth pattern's connection position on the circuit confluence plywood, just the connection position sets up a plurality ofly, just the connection position symmetry sets up in circuit confluence plywood both sides, simultaneously the connection is for can being connected with electric core. The general use of electric core is not single use promptly, but a plurality of electric cores are made up and are organized the electric core and use together, all have two positive and negative electrode slices on every electric core, and the electrode slice on the electric core group has a plurality of promptly, corresponds a plurality of on the circuit combination board and connects the position, gathers that electric current is realized to the electric core through circuit combination board lug connection promptly.

Preferably, the circuit convergence board is further provided with a plurality of connecting holes, and the connecting holes and the screws can connect the circuit convergence board with the battery cell. The stability that circuit convergent plate and electric core group are connected is guaranteed promptly.

The utility model relates to a FFC connecting device for electric core's beneficial effect is, utilizes the FFC winding displacement to replace traditional electric wire, guarantees signal acquisition and current transport's stability, but also has advantages such as soft, bending folding at will, thickness is thin, small, connect simple, dismantle conveniently, conveniently carries out the adjustment of the position of BMS protection shield according to the actual demand.

Drawings

Fig. 1 is a schematic structural diagram of an FFC connection device for a battery cell.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is a schematic view of the connection between the line junction board and the electric core assembly.

In the figure:

1-battery core, 2-circuit converging plate, 3-FFC connecting component, 4-BMS protecting plate,

21-connecting position, 22-connecting hole,

31-FFC flat cable, 32-plug groove.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

The FFC winding displacement is a Flexible Flat Cable (called Flexible Flat Cable entirely), a novel data Cable formed by PET insulating material and extremely thin tinned Flat copper wire through the pressfitting of high-tech automation equipment production line.

The BMS (fully called Battery Management System) is a Battery Management System, and a BMS protection board guarantees Battery safety through the circuit board.

Referring to fig. 1-3, an FFC connecting device for an electric core in this embodiment includes an electric core 1, a line junction plate 2 is disposed on the electric core 1, and the line junction plate 2 is electrically connected to the electric core 1, the line junction plate 2 is further connected to a BMS protection plate 4 through an FFC connecting assembly 3, the FFC connecting assembly 3 includes an FFC flat cable 31, and the line junction plate 2 is connected to the BMS protection plate 4 through the FFC flat cable 31, and at the same time, plug terminals are respectively disposed at two ends of the FFC flat cable 31, and plug slots 32 are respectively disposed on the line junction plate 2 and the BMS protection plate 4, and the plug terminals can be inserted into the plug slots 32 and electrically connected.

The plug terminals at both ends of the FFC bus bar 31 are of different types, and the plug grooves 32 on the line junction plate 2 and the BMS protection plate 4 can be fitted with the plug terminals of different types. Two groups of plug terminals and plug grooves 32 are arranged respectively, and the two groups of models are different, so that the only connection mode can be ensured, and the signal acquisition and the small current passing stability are facilitated.

The two plug terminals and the two plug grooves 32 can also be respectively provided with the same type. Namely, the FFC flat cable 31 is set to be of the same type, so that the subsequent FFC flat cable 31 is ensured to be replaced timely and conveniently.

Be provided with sawtooth pattern's connection position 21 on the line confluence plate 2, and connection position 21 sets up a plurality ofly, and the symmetry of connection position 21 sets up in line confluence plate 2 both sides, connects simultaneously for can be connected with electric core 1. That is, the general use of electric core 1 is not single use, but a plurality of electric core 1 combinations have electric core 1 group to use together, all have two positive and negative electrode slices on every electric core 1, and the electrode slice on electric core 1 group has a plurality of promptly, corresponds a plurality of connection position 21 on the circuit convergence board 2, and the collection that realizes the electric current through circuit convergence board 2 lug connection electric core 1 promptly.

The circuit convergence board 2 is further provided with a plurality of connecting holes 22, and the circuit convergence board 2 and the battery cell 1 can be connected through the connecting holes 22 and screws. Namely, the stability of the connection between the circuit combining plate 2 and the battery cell 1 is ensured.

The FFC connecting device for the battery cell 1 has the advantages that the FFC flat cable 31 is used for replacing a traditional electric wire, the stability of signal acquisition and current transmission is guaranteed, and the FFC connecting device has the advantages of being soft, flexible and foldable at will, thin in thickness, small in size, simple in connection, convenient to disassemble and the like, and can be conveniently adjusted according to the actual requirement to the position of the BMS protection board 4.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (5)

1. The utility model provides a FFC connecting device for electric core, includes electric core, be provided with circuit convergent plate on the electric core, just circuit convergent plate carries out the electricity with electric core and is connected its characterized in that: the circuit convergence board is further connected with the BMS protection board through the FFC connecting assembly, the FFC connecting assembly comprises an FFC flat cable, the FFC flat cable is used for connecting the circuit convergence board with the BMS protection board, meanwhile, the two ends of the FFC flat cable are respectively provided with an inserting terminal, inserting grooves are respectively formed in the circuit convergence board and the BMS protection board, and the inserting terminals can be inserted into the inserting grooves and electrically connected.

2. The FFC connection device for the battery cell of claim 1, wherein: the plug terminals at the two ends of the FFC flat cable are different in type, and the plug grooves in the circuit converging plate and the BMS protection plate can be matched with the plug terminals of different types.

3. The FFC connection device for the battery cell of claim 1, wherein: the two plug terminals and the two plug grooves can be respectively set to be of the same type.

4. The FFC connection device for the battery cell of claim 1, wherein: the circuit converges and is provided with sawtooth type's connection position on the plywood, just the connection position sets up a plurality ofly, just the connection position symmetry sets up in circuit converges plywood both sides, simultaneously the connection is for can being connected with electric core.

5. The FFC connection device for the battery cell of claim 1, wherein: the circuit convergence board is also provided with a plurality of connecting holes, and passes through connecting hole and screw can be connected with circuit convergence board and electric core.

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