CN219350571U - Full welding-free battery pack based on 46 series large cylindrical battery - Google Patents

Abstract

The utility model discloses a full welding-free battery pack based on a 46-series large cylindrical battery, which comprises a plastic bottom plate, a first bracket, a plurality of second brackets, a third bracket, a battery, a collection line and a protection plate, wherein a plurality of side-by-side placing grooves are formed in the plastic bottom plate, the battery is positioned in the placing grooves, the first bracket, the second bracket and the third bracket are sequentially clamped at intervals and are electrically connected with the battery, the first bracket, the second bracket and the third bracket are fixedly connected in a clamping manner in an adjacent manner, the first bracket, the second bracket and the third bracket are connected with the plastic bottom plate through bolts, one end of the collection line is respectively electrically connected with the first bracket, the second bracket and the third bracket, and the other end of the collection line is electrically connected with the protection plate. The utility model adopts the whole course to avoid welding and grouping, reduces the risk, has simple manufacturing process and convenient maintenance.

Description

Full welding-free battery pack based on 46 series large cylindrical battery

Technical Field

The utility model relates to the technical field of lithium battery processing, in particular to a full welding-free battery pack based on a 46-series large cylindrical battery.

Background

At present, the group mode of the 46-series large cylindrical battery is mainly welding due to the structural limitation of the cylindrical battery, the relatively mature welding modes comprise ultrasonic welding, resistance welding, tin welding and the like, the production equipment of the 46-series large cylindrical battery is required to have higher precision, the design, production, debugging and maintenance costs are higher, the welding is often accompanied with high temperature and high voltage, the unavoidable risk of damaging the battery core exists, and the battery pack formed by the welding mode is difficult to repair and disassemble.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a full welding-free battery pack which is free of welding and convenient to assemble and disassemble and is based on a 46-series large cylindrical battery.

The aim of the utility model is achieved by the following technical scheme: a exempt from to weld group battery entirely based on 46 are big cylinder batteries which characterized in that: including plastic bottom plate, first support, a plurality of second support, third support, battery, collection line, protection shield, be provided with a plurality of standing grooves side by side on the plastic bottom plate, the battery is located in the standing groove, first support, second support, third support interval package clamp in proper order and electricity are connected the battery, buckle fixed connection between first support, second support, the third support are adjacent, first support, second support, third support with bolted connection between the plastic bottom plate, collection line one end is electric connection respectively first support, second support, third support, the other end electricity of collection line is connected the protection shield.

Further, the first support includes first current-carrying sheet, first shell, be provided with a plurality of first elastic reed, first bending tab on the first current-carrying sheet, be provided with a plurality of first baffles on the first shell, first current-carrying sheet is embedded in the first shell, the second support includes second current-carrying sheet, second shell, be provided with second elastic reed, second bending tab, first contact on the second current-carrying sheet, be provided with second baffle, first top board on the second shell, the second current-carrying sheet is embedded in the second shell, first contact is located first top board below, the third support includes third current-carrying sheet, third shell, be provided with second contact, third bending tab on the third shell, the second contact is located the below on the second, first baffle, second baffle are the second baffle is the circular arc structure, second tab is the second elastic reed, second electric lug is located first elastic reed, second electric lug is connected, first electric lug is located first elastic reed, first electric lug is connected.

Further, be provided with a plurality of lower pillars on the plastic bottom plate, all be provided with the upper half pillar on first shell medial surface second shell both sides face, the third shell medial surface, 2 upper half pillar lock are in the same place and are constituteed complete columnar structure, the upper half pillar with lower pillar is relative from top to bottom, the upper half pillar with pass through the bolt fastening between the lower pillar.

The utility model has the following advantages: the battery module adopts 46 series large cylindrical batteries, so that the energy density and grouping efficiency are high, and the system cost and BMS difficulty are reduced; the whole process adopts the welding-free grouping, reduces the risk, and has simple manufacturing process and convenient maintenance.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a plastic base plate according to the present utility model;

FIG. 3 is a schematic view of a first bracket structure of the present utility model;

FIG. 4 is a schematic structural view of a second bracket of the present utility model;

FIG. 5 is a schematic structural view of a third bracket of the present utility model;

FIG. 6 is a schematic view of a second bracket mounting structure of the present utility model;

FIG. 7 is a schematic view of the bolt mounting of the present utility model and a cross-sectional view of the mounting surface;

fig. 8 is an exploded view of the present utility model.

In the figure, 1, a battery; 2. a plastic bottom plate; 2A, lower support; 2B, placing grooves; 3. a first bracket; 3A, a first current carrying sheet; 3A1, a first elastic reed; 3A2, a first bending tab; 3B, a first shell; 3B1, a first separator; 4. a second bracket; 4A, a second current carrying sheet; 4A1, a second elastic reed; 4A2, a second bending tab; 4A3, first contact; 4B, a second shell; 4B1, a second separator; 4B2, a first upper pressing plate; 5. a third bracket; 5A, a third carrier flow sheet; 5A1, a second contact; 5A2, a third bending tab; 5B, a third shell; 5B1, a second upper pressing plate; 6. a bolt; 7. a collection line; 8. protection board, 9, upper half pillar.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 8, an embodiment of a full welding-free battery pack based on 46-series large cylindrical batteries comprises a plastic bottom plate 2, 1 first bracket 3, 12 second brackets 4, 1 third bracket 5, a battery 1, a collection line 7 and a protection plate 8, wherein the top end of the battery 1 is positive, the whole shell is negative, 13 x 6 side by side placement grooves 2B are arranged on the plastic bottom plate 2, the battery 1 is positioned and clamped in the placement grooves 2B, the first bracket 3 comprises a first current carrying sheet 3A and a first shell 3B, 6 first elastic reeds 3A1 and first bending lugs 3A2 are arranged on the first current carrying sheet 3A, 6 first partition plates 3B1 are arranged on the first shell 3B, the first current carrying sheet 3A is embedded in the first shell 3B by using an injection molding process, the first elastic reeds 3A1 and the first bending lugs 3A2 are exposed outside, the second bracket 4 comprises a second current carrying sheets 4A and a second shell 4B, the second current carrying piece 4A is provided with 6 second elastic reeds 4A1, second bending lugs 4A2 and 6 first contacts 4A3, the second shell 4B is provided with a second separator 4B1 and a first upper pressing plate 4B2, the second current carrying piece 4A is embedded in the second shell 4B by using an injection molding process, the second elastic reeds 4A1, the second bending lugs 4A2 and the 6 first contacts 4A3 are exposed, the first contacts 4A3 are positioned below the first upper pressing plate 4B2, the first contacts 4A3 are electrically connected with the positive electrode of the battery 1, the third support 5 comprises a third current carrying piece 5A and a third shell 5B, the third current carrying piece 5A is provided with 6 second contacts 5A1 and a third bending lug 5A2, the third shell 5B is provided with a second upper pressing plate 5B1, the second contacts 5A1 are positioned below the second upper pressing plate 5B1, the second contacts 5A1 are electrically connected with the positive electrode of the battery 1, the second separator 4B1 and the second separator 1 are in an arc structure which is equal to the arc structure, the first elastic reed 3A1 and the second elastic reed 4A1 are of arc clamp structures, the first elastic reed 3A1 is located in the first partition plate 3B1, the second elastic reed 4A1 is located in the second partition plate 4B1, the first elastic reed 3A1 and the second elastic reed 4A1 are wrapped and electrically connected with the side surface of the battery 1, the first contact 4A3 and the second contact 5A1 are electrically connected with the top of the battery, the collecting wire 7 is respectively electrically connected with the first bending tab 3A2, the second bending tab 4A2 and the third bending tab 5A2, the other end of the collecting wire 7 is electrically connected with the protecting plate 8, the collecting wire 7 and the protecting plate 8 are located on the side of the battery 1, 10 lower support posts 2A are arranged on the plastic bottom plate 2, an upper half support post 9 is arranged on the inner side surface of the first partition plate 3B, an upper half support post 9 is arranged on the inner side surface of the second shell 4B, namely on the position between the adjacent second partition plate 4B1, an upper half support post 9 is arranged on the inner side surface of the third shell 5B, the upper half support post 9 is respectively electrically connected with the upper half support post 9 corresponding to the upper half support post 2, the upper half support post is correspondingly arranged on the upper half support post 2B and the second shell 2B is correspondingly provided with the upper half support post 9B and the corresponding to the lower half card 2B, the upper half clamp hole is correspondingly arranged on the upper half clamp shell 2B and the upper half clamp shell 2B.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (3)

1. A exempt from to weld group battery entirely based on 46 are big cylinder batteries which characterized in that: including plastic bottom plate (2), first support (3), a plurality of second support (4), third support (5), battery (1), collection line (7), protection shield (8), be provided with a plurality of standing grooves (2B) side by side on plastic bottom plate (2), the battery is located in standing groove (2B), first support (3), second support (4), third support (5) interval package clamp in proper order and electricity are connected battery (1), buckle fixed connection between adjacent of first support (3), second support (4), third support (5), bolt connection between first support (3), second support (4), third support (5) with plastic bottom plate (2), collection line (7) one end is electric connection respectively first support (3), second support (4), third support (5), the other end electricity of collection line (7) is connected protection shield (8).

2. A full weld-free battery pack based on 46-series large cylindrical cells as claimed in claim 1, wherein: the first support (3) comprises a first current carrying sheet (3A) and a first shell (3B), a plurality of first elastic reeds (3A 1) and first bending lugs (3A 2) are arranged on the first current carrying sheet (3A), a plurality of first partition boards (3B 1) are arranged on the first shell (3B), the first current carrying sheet (3A) is embedded in the first shell (3B), the second support (4) comprises a second current carrying sheet (4A) and a second shell (4B), a second elastic reed (4A 1), a second bending lug (4A 2) and a first contact (4A 3) are arranged on the second current carrying sheet (4A), a second partition board (4B 1) and a first upper pressing board (4B 2) are arranged on the second shell (4B), the first contact (4A) is located on the first upper pressing board (4A) and the second support (4A), the third contact (5A) is located on the second support (5A) and the third contact (5A) is located on the third shell (1B), the third contact (5A) is located on the third shell (5A) and the third contact (5A) is located on the third shell (5A 1B) The second baffle (4B 1) is circular arc platy structure, first elastic reed (3A 1), second elastic reed (4A 1) are circular arc clamp structure, first elastic reed (3A 1) are located in first baffle (3B 1), second elastic reed (4A 1) are located in second baffle (4B 1), first elastic reed (3A 1), second elastic reed (4A 1) clamp and electricity are connected battery (1) side surface, first contact (4A 3), second contact (5A 1) electricity are connected battery (1) tip, collection line (7) electricity are connected respectively first bending tab (3A 2), second bending tab (4A 2), third bending tab (5A 2).

3. A full weld-free battery pack based on 46-series large cylindrical cells as claimed in claim 2, wherein: be provided with a plurality of lower pillars (2A) on plastic bottom plate (2), first shell (3B) medial surface second shell (4B) both sides face, third shell (5B) medial surface are last all to be provided with half pillar (9), 2 half pillar (9) lock are together constituteed complete columnar structure, half pillar (9) on with lower pillar (2A) are relative from top to bottom, half pillar (9) on with pass through the bolt fastening between lower pillar (2A).

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