CN219643061U

CN219643061U - Soft packet of electric core series-parallel busbar

Info

Publication number: CN219643061U
Application number: CN202321214052.XU
Authority: CN
Inventors: 王润; 陈晨; 徐建祥
Original assignee: Taizhou Tianke Power System Co ltd
Current assignee: Taizhou Tianke Power System Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-09-05
Anticipated expiration: 2033-05-19

Abstract

The utility model relates to the technical field of new energy manufacturing, in particular to a soft package battery cell serial-parallel bus bar; including converging base, multiunit locating part and a plurality of utmost point ear, it has a plurality of spacing chambeies to converge the base, every utmost point ear all has the through-hole, the locating part is including supporting to hold the spring, spacing arc piece, extensible member and two locating pieces, it still has the recess to converge the base, spacing arc piece and through-hole looks adaptation, support the both ends of holding the spring respectively with converging base and spacing arc piece fixed connection, and be located the recess, the both ends of extensible member respectively with converging base and spacing arc piece fixed connection, and be located to hold the spring, two locating pieces all with converging base fixed connection, and the symmetry sets up in the lateral wall that converges the base, when having solved a plurality of electric cores and established ties, the utmost point ear is bent many times, the heat dissipation is poor, guarantee the performance and the security of product.

Description

Soft packet of electric core series-parallel busbar

Technical Field

The utility model relates to the technical field of new energy manufacturing, in particular to a series-parallel bus bar of a soft package battery core.

Background

The soft package lithium ion group welding process is mainly used for welding anode and cathode aluminum copper lugs. There are various means and methods of laser welding, ultrasonic welding, and precision intelligent welding. The precise intelligent welding realizes reliable fusion of copper and aluminum by directly clamping and heating the positive electrode lug and the negative electrode lug. The welding process is simple and convenient, the welding effect is excellent, and the welding process has been well applied, so the welding process is a trend of future development of industry.

However, in the current cell grouping process, when multiple cells are connected in series, the electrode lugs are bent for multiple times, so that cell damage and short-circuit accidents are easy to occur, and the performance and safety of products can be influenced.

Disclosure of Invention

The utility model aims to provide a series-parallel busbar with soft package battery cells, and aims to solve the technical problems that in the process of grouping battery cells in the prior art, when a plurality of battery cells are connected in series, a plurality of lugs are bent, so that battery cell damage and short circuit accidents are easy to occur, and the performance and the safety of products are influenced.

In order to achieve the above purpose, the soft-package battery cell serial-parallel connection busbar comprises a busbar base, a plurality of groups of limiting parts and a plurality of lugs, wherein the busbar base is provided with a plurality of limiting cavities, each group of limiting parts are respectively arranged in the limiting cavities, each lug is provided with a through hole, and the lugs are respectively matched with the corresponding limiting parts;

the limiting piece comprises a supporting spring, a limiting arc block, a telescopic piece and two positioning blocks, the converging base is further provided with a groove, the limiting arc block is matched with the through hole, two ends of the supporting spring are respectively connected with the converging base and the limiting arc block fixedly, and are located in the groove, two ends of the telescopic piece are respectively connected with the converging base and the limiting arc block fixedly, and are located in the supporting spring, and the two positioning blocks are respectively connected with the converging base fixedly and symmetrically arranged on the outer side wall of the converging base.

The limiting piece further comprises a gasket, and the gasket is fixedly connected with the confluence base and located in the limiting cavity.

The limiting piece further comprises an extrusion block, wherein the extrusion block is fixedly connected with the electrode lug and is positioned on the outer side wall of the electrode lug.

The bus base is further provided with a limiting hole, and the limiting hole is matched with the limiting arc block.

The soft package battery cell serial-parallel connection busbar further comprises a plurality of connecting blocks, wherein the connecting blocks are fixedly connected with the busbar base and are respectively positioned on the outer wall of the busbar base.

According to the soft-package battery cell serial-parallel bus bar, the bus base is a copper plate, the whole copper plate is bent to form the soft-package battery cell serial-parallel bus bar, after bending, a plurality of limiting cavities are formed in the bus base and used for holding the lugs in a blank mode, so that stability and over-electrical performance of the soft-package battery cell serial-parallel bus bar are guaranteed, when the lugs are installed on the bus base, the lugs are inserted into the limiting cavities of the bus base, the locating blocks can locate the lugs on the bus base, the lugs move in the limiting cavities, the lugs can be contacted with the limiting arc blocks, the limiting arc blocks are provided with cambered surfaces, the limiting arc blocks can be extruded by the lugs, the limiting arc blocks can extrude the telescopic pieces and the supporting springs, the lugs continue to move, when the lugs move to the corresponding positions in the bus base, the supporting springs have elastic force, the supporting springs and the telescopic pieces can push the limiting arc blocks to reset the lugs, and the lugs can enter the bus base, and the heat dissipation performance of the soft-package battery cell serial-bus bar is guaranteed, and the heat dissipation performance of the soft-package battery cell serial-bus bar is guaranteed, and the heat dissipation problem is solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a series-parallel bus bar with a soft package battery cell according to the present utility model.

Fig. 2 is a top view of the structure of the soft package battery cell serial-parallel bus bar of the present utility model.

Fig. 3 is a schematic structural diagram of a tab of a soft-package battery cell serial-parallel bus bar according to the present utility model.

Fig. 4 is a partial structural cross-sectional view of the soft pack cell series-parallel bus bar of the present utility model.

Fig. 5 is an enlarged view of the partial structure at a of fig. 4 according to the present utility model.

101-confluence base, 102-tab, 103-supporting spring, 104-limit arc block, 105-telescopic piece, 106-locating block, 107-gasket, 108-extrusion block, 109-connecting block, 110-limit cavity, 111-groove, 112-limit hole, 113-through hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1 to 5, the utility model provides a series-parallel busbar with soft package battery cells, which comprises a busbar base 101, a plurality of groups of limiting members and a plurality of lugs 102, wherein the busbar base 101 is provided with a plurality of limiting cavities 110, each group of limiting members are respectively arranged in the limiting cavities 110, each lug 102 is provided with a through hole 113, and the lugs 102 are respectively matched with the corresponding limiting members;

the limiting piece comprises a supporting spring 103, a limiting arc block 104, a telescopic piece 105 and two positioning blocks 106, the converging base 101 is further provided with a groove 111, the limiting arc block 104 is matched with the through hole 113, two ends of the supporting spring 103 are fixedly connected with the converging base 101 and the limiting arc block 104 respectively and are located in the groove 111, two ends of the telescopic piece 105 are fixedly connected with the converging base 101 and the limiting arc block 104 respectively and are located in the supporting spring 103, and the two positioning blocks 106 are fixedly connected with the converging base 101 and are symmetrically arranged on the outer side wall of the converging base 101.

In this embodiment, the base 101 that converges is a copper, forms through bending the monoblock copper, after bending, form a plurality of spacing chambeies 110 in the base 101 that converges, be used for keeping aside and press from both sides the tab 102, guarantee its stability and the electrical property that crosses, when to tab 102 is in when the base 101 that converges installs, will tab 102 insert to in the spacing chambeies 110 of base 101 that converges, locating piece 106 can be right tab 102 is in position on the base 101 that converges, tab 102 is in move in spacing chambeies 110, tab 102 can be right tab 102 contacts with spacing arc piece 104, spacing arc piece 104 has the cambered surface, spacing arc piece 104 can receive tab 102's extrusion this moment, spacing arc piece 104 can be right tab 102 with support spring 103 extrusion, will tab 102 continues to move, when tab 102 moves to behind the corresponding position in the base 101 that converges, support spring 103 has elastic force, tab 102 and tab 102 are moved to the tab 102 can be avoided the limit terminal 102 to carry out the expansion piece when the tab 102 is located in the limit die 102, the limit die 102 can be reached when the limit die 102 is reached to the limit die 102, the limit die 102 can be reached and the limit die 102 is bent, the limit die 102 has guaranteed to have reached and the limit electric property, and the limit die 102 is carried out the limit electric property has been guaranteed.

Further, the limiting member further includes a spacer 107, where the spacer 107 is fixedly connected to the busbar base 101 and is located in the limiting cavity 110.

In the present embodiment, the spacer 107 can serve as a filler for the tab 102 in the bus bar base 101, and the tab 102 can be more stably fixed in the bus bar base 101.

Further, the limiting member further includes a pressing block 108, where the pressing block 108 is fixedly connected to the tab 102 and is located on an outer sidewall of the tab 102.

In this embodiment, the tab 102 is disposed on the extrusion block 108, where the extrusion block 108 has an arc surface, so that the tab 102 is convenient to extrude the limit arc block 104, and the tab 102 is convenient to limit in the bus base 101.

Further, the bus base 101 further has a limiting hole 112, and the limiting hole 112 is adapted to the limiting arc block 104.

In this embodiment, after the limiting arc block 104 passes through the through hole 113 of the tab 102, the limiting arc block 104 is located in the limiting hole 112, and then when the tab 102 is taken out, the tab 102 is pulled outward on the bus base 101 by pressing the limiting arc block 104.

Further, the soft package battery cell serial-parallel bus bar further includes a plurality of connection blocks 109, and the plurality of connection blocks 109 are fixedly connected with the bus base 101 and are respectively located on the outer wall of the bus base 101.

In the present embodiment, the connection block 109 is provided on the outer wall of the bus bar base 101, so that the bus bar base 101 can be easily fixed to be attached.

The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.

Claims

1. A series-parallel bus bar of soft package battery core is characterized in that,

the solar cell module comprises a confluence base, a plurality of groups of limiting parts and a plurality of lugs, wherein the confluence base is provided with a plurality of limiting cavities, each group of limiting parts are respectively arranged in the limiting cavities, each lug is provided with a through hole, and the lugs are respectively matched with the corresponding limiting parts;

2. The soft pack cell serial-parallel bus bar of claim 1, wherein,

3. The soft pack cell serial-parallel bus bar of claim 2, wherein,

the limiting piece further comprises an extrusion block, wherein the extrusion block is fixedly connected with the pole lug and is positioned on the outer side wall of the pole lug.

4. The soft pack cell serial-parallel bus bar of claim 3,

the confluence base is further provided with a limiting hole, and the limiting hole is matched with the limiting arc block.

5. The soft pack cell serial-parallel bus bar of claim 4, wherein,

the soft package battery cell serial-parallel connection busbar still includes a plurality of connecting blocks, and is a plurality of the connecting block all with the base fixed connection that converges, and be located respectively the outer wall of base converges.