CN210607346U

CN210607346U - Power battery connecting terminal structure

Info

Publication number: CN210607346U
Application number: CN201921607067.6U
Authority: CN
Inventors: 何东甫; 刘斌生; 张凤敏
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-05-22
Anticipated expiration: 2029-09-25

Abstract

The utility model relates to a power battery connection terminal structure, its characterized in that: the battery pack comprises a first terminal and a connector, wherein the first terminal is respectively connected with the positive electrode and the negative electrode of the battery cell, and the connector is in plug-in connection with the first terminal and is electrically connected with the circuit board through a wire. The utility model discloses power battery connecting terminal structure's theory of operation, through with electric core just, the first terminal that the negative pole is connected and connector (through wire and circuit board electric connection) plug-in connection to when using, as long as peg graft both can fix, extract can the disconnect-able, greatly reduced the degree of difficulty and the consume of later stage maintenance.

Description

Power battery connecting terminal structure

The technical field is as follows:

the utility model relates to a power battery connection terminal structure.

Background art:

with the great development of the new energy field, the connection modes between the PCM circuit board and the cell connecting sheet in the power battery product are more and more. In traditional electric core and PCM connection scheme, electric core directly adopts connection piece schemes such as nickel piece directly to carry out welded connection with PCM circuit board, but can lead to the dismantlement difficulty such as repair maintenance like this again.

The first is to adopt nickel piece laser spot welding and PCM circuit board lug connection, and laser spot welding back is undetachable, leads to electric core connection piece to take the damage when the circuit board damages and needs to be changed, and electric core is taken the degradation and is secondary electric core, and it is with high costs to repair the maintenance, and the maintenance is difficult.

And the second method is to connect the PCM circuit board by using the penetration welding of the nickel plate, the penetration welding efficiency is low, and the PCM circuit board is difficult to maintain and replace after the welding is finished.

The second type is that the wiring harness and connecting piece direct welding scheme is adopted to be connected with the PCM circuit board, the wiring harness welding operation is long, uncontrollable risks such as damage to an electric core due to overhigh temperature exist in the welding operation process, and the risk of soldering tin melting and heating damage of a welding point at the connecting piece position also exists in the maintenance process.

The invention content is as follows:

to the above problem, the utility model provides a power battery connecting terminal structure, this power battery connecting terminal structure can make things convenient for the dismouting of electric core and circuit board, reduces the degree of difficulty and the consume of later stage maintenance.

The utility model discloses power battery connection terminal structure, its characterized in that: the battery pack comprises a first terminal and a connector, wherein the first terminal is respectively connected with the positive electrode and the negative electrode of the battery cell, and the connector is in plug-in connection with the first terminal and is electrically connected with the circuit board through a wire.

Furthermore, above-mentioned first terminal includes the perpendicular bending sheet that constitutes and the linking piece of being connected with the perpendicular fixed connection of horizontal segment by vertical segment, horizontal segment, be equipped with on the linking piece with the connector mother piece of grafting fixed.

Furthermore, both sides of the master slice are provided with bending slices bending inwards and convex buttons arranged in the middle of the master slice.

Furthermore, the first end of the connector is connected with the end of the wire in a hooped mode, two side portions of the second end of the connector are provided with outer convex spigot edges, and the middle of the second end of the connector is provided with a positioning hole matched with the convex button.

Furthermore, the two horizontal segments of the first terminals of the positive electrode and the negative electrode of the battery core face to be opposite.

Further, the above-mentioned joining piece and the first terminal horizontal segment are fixed by laser spot welding.

Furthermore, the second end of the connector is provided with a chamfer angle.

The utility model discloses power battery connecting terminal structure's theory of operation, through with electric core just, the first terminal that the negative pole is connected and connector (through wire and circuit board electric connection) plug-in connection to when using, as long as peg graft both can fix, extract can the disconnect-able, greatly reduced the degree of difficulty and the consume of later stage maintenance.

Description of the drawings:

fig. 1 is a perspective view of the power battery connection terminal structure of the present invention;

FIG. 2 is a perspective view of the connection head, wires and circuit board;

fig. 3 is a perspective view of the first terminal;

fig. 4 is a perspective view of the engagement piece and the connection head;

fig. 5 is a perspective view of the present invention mounted in a housing.

The specific implementation mode is as follows:

the utility model discloses power battery connecting terminal structure includes respectively with electric core just, the first terminal 1 that the negative pole is connected and with the 1 plug-in connection's of first terminal connector 2, first terminal adopts phosphor bronze nickel plating or brass nickel plating material to make with the connector, connector 2 is through wire 3 and circuit board 4 electric connection, and circuit board 4 can be the PCM circuit board, and first terminal 1 is just, negative pole electric connection with electric core, and it can install in casing M, and the electric core card is put in the casing after, just, the negative pole is exported through being located just, the first terminal 1 of negative pole.

Furthermore, for reasonable design and convenient manufacturing, the first terminal 1 includes a bent piece 103 formed by vertically connecting a vertical segment 101 and a horizontal segment 102, and a connecting piece 104 vertically and fixedly connected with the horizontal segment 102, wherein a mother piece 105 fixedly inserted into the connecting head 2 is disposed on the connecting piece 104, both the vertical segment 101 and the horizontal segment 102 are thin sheets, and can be formed by stamping a metal sheet to be bent at 90 degrees to form the bent piece 103, and one surface of the horizontal segment 102 is vertically welded and fixed with the surface of the connecting piece 104.

Furthermore, in order to design reasonably and connect reliably, both sides of the mother plate 105 are provided with inward bent plates 106 and a convex button 107 arranged in the middle of the mother plate, the first end 201 of the connector 2 is connected with the end of the lead 3 in a hooping way, both sides of the second end of the connector are provided with outer convex stopping edges 202, and the middle of the second end of the connector is provided with a positioning hole 203 matched with the convex button 107; the bent pieces 106 bent inward at two sides can be used for inserting the second end 201 of the connector 2, and the convex button 107 is used for sinking into the positioning hole 203, so that reliable insertion is realized and the falling off is not easy.

Furthermore, for reasonable design, the space is utilized, the two horizontal segments of the first terminals of the positive electrode and the negative electrode of the battery core face to each other, the surface of the horizontal segment 102 is vertically welded and connected with the surface of the connecting piece 104, and the two connectors are located on the inner sides of the positive electrode and the negative electrode of the battery core, so that the space is saved.

Further, for reliable connection, the above-mentioned engagement piece and the first terminal horizontal segment are fixed by laser spot welding.

Furthermore, for the convenience of plugging, the second end of the connector 2 has a chamfer 204.

The armature plate and the connector of first terminal can adopt phosphor bronze nickel plating or brass nickel plating etc. to connect the good conductor that the little electrical property of impedance is good and form in this application, and based on different electric current demands, the armature plate can be customized adjustment with connector thickness and substrate, improves the suitability.

The utility model discloses power battery connecting terminal structure's theory of operation, through with electric core K just, the first terminal that the negative pole is connected and connector (through wire and circuit board electric connection) plug-in connection to when using, as long as peg graft both can fix, extract can the disconnect-able, greatly reduced the degree of difficulty and the consume of later stage maintenance, also shortened maintenance duration greatly.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a power battery connection terminal structure which characterized in that: the battery pack comprises a first terminal and a connector, wherein the first terminal is respectively connected with the positive electrode and the negative electrode of the battery cell, and the connector is in plug-in connection with the first terminal and is electrically connected with the circuit board through a wire.

2. A power battery connection terminal structure according to claim 1, wherein: the first terminal comprises a bending piece formed by vertically connecting vertical segments and horizontal segments and a connecting piece vertically and fixedly connected with the horizontal segments, and a mother piece fixedly connected with the connector in an inserting mode is arranged on the connecting piece.

3. A power battery connection terminal structure according to claim 2, wherein: the two sides of the master slice are provided with bending slices bending inwards and convex buttons arranged in the middle of the master slice.

4. A power battery connection terminal structure according to claim 3, wherein: the first end of the connector is connected with the end head of the wire in a hooped mode, two side portions of the second end of the connector are provided with outer convex spigot edges, and the middle of the second end of the connector is provided with a positioning hole matched with the convex button.

5. A power battery connection terminal structure according to claim 1, wherein: the two horizontal segments of the first terminals of the positive pole and the negative pole of the battery core face oppositely.

6. A power battery connection terminal structure according to claim 2, wherein: the connecting piece and the first terminal horizontal segment are fixed through laser spot welding.

7. A power battery connection terminal structure according to claim 4, wherein: the second end of the connector is provided with a chamfer angle.