CN220362189U - Converging line positioning tool - Google Patents

Abstract

The embodiment of the utility model provides a bus bar positioning tool, and relates to the technical field of battery production and manufacturing. The busbar positioning tool comprises a main board and a plurality of positioning plates, wherein a plurality of adjusting holes are formed in the main board, the adjusting holes are distributed in an array mode, through holes are formed in the middle of the main board and are used for exposing the busbars, mounting holes are formed in the positioning plates corresponding to the adjusting holes according to the positioning plates, the positioning plates are mounted on one side of the main board through the adjusting holes and the mounting holes by fasteners, and the positioning plates are used for limiting and fixing the busbars. The position of the locating plate is adjusted through the adjusting hole, so that the hole on the busbar is aligned with the hole of the battery core pole, the problem of partial welding is prevented, and the whole battery module is scrapped.

Description

Converging line positioning tool

Technical Field

The utility model relates to the technical field of battery production and manufacturing, in particular to a bus bar positioning tool.

Background

At present, when a busbar is welded, a busbar positioning tool for a lithium battery without a module is generally designed according to a digital-to-analog size, and is usually used for processing the busbar positioning tool on a whole bakelite plate and limiting by utilizing the outline size of the busbar. However, the general size of the lithium battery pack without the module scheme is larger, and a certain gap is reserved between the lithium battery pack and a digital module after various tolerance accumulation in the assembly process, so that the bus bar positioning tool designed through the digital module size and the battery pack after actual assembly have the gap above the size, and the bus bar is placed through the bus bar positioning tool, so that offset exists between a pole piece and a battery core pole column hole, the problem of battery core bias welding and the like can occur under serious conditions, and the whole module is scrapped.

Disclosure of Invention

The utility model provides a busbar positioning tool which can adjust the position of a positioning sheet, so that holes on a busbar which is subsequently installed are aligned with holes of a battery core pole, the problems of partial welding and the like are prevented, and the whole battery module is scrapped.

Embodiments of the utility model may be implemented as follows:

the embodiment of the utility model provides a bus bar positioning tool, which comprises:

the bus bar comprises a main board, wherein a plurality of adjusting holes are formed in the main board, the adjusting holes are arranged in an array manner, a through hole is formed in the middle of the main board, and the through hole is used for exposing the bus bar;

the positioning plates are used for limiting and fixing the busbar, mounting holes are formed in the positions, corresponding to the adjusting holes, of the positioning plates, the positioning plates are mounted on one side of the main board through the adjusting holes and the mounting holes by fasteners, and the positioning plates are used for limiting and fixing the busbar.

In an alternative embodiment, for each spacer, the spacer includes a middle plate and at least two spacers, the spacers are connected to two ends of the middle plate, the middle plate is connected to the main plate, each spacer is located outside the main plate, one end of each spacer, away from the middle plate, has a protruding portion, and the protruding portion is used for limiting and fixing the busbar.

In an alternative embodiment, part of the positioning member has two protrusions.

In an alternative embodiment, part of the positioning pieces comprise three positioning pieces, wherein two positioning pieces are connected to one end of the middle plate, and the other positioning piece is connected to the other end of the middle plate.

In an alternative embodiment, the middle of the adjusting hole is rectangular, and two ends of the rectangle are semicircular.

In an alternative embodiment, the thickness of the spacer is thicker than the thickness of the main plate.

In an alternative embodiment, a plurality of positioning pins are arranged on one side of the main board, on which the positioning pieces are arranged, and the positioning pins are used for fixedly connecting the main board with the battery pack.

In an alternative embodiment, the portion of the main board connected to the spacer in the middle is thinner than the portion of the main board not connected to the spacer.

In an alternative embodiment, a handle is mounted on the side of the main plate facing away from the side on which the locating tab is mounted.

In an optional embodiment, one side of the main board, which is away from the positioning sheet, is provided with one or more sinking grooves, and the sinking grooves are used for installing two-dimensional codes and related product models.

The busbar positioning tool provided by the embodiment of the utility model has the beneficial effects that:

the position of the locating piece can be adjusted through the adjusting holes in the middle plate, so that holes in the bus bar mounted subsequently are aligned with the holes of the battery core pole, the problems of partial welding and the like are prevented, and the whole battery module is scrapped.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first view angle of a busbar positioning fixture according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second view angle of the bus bar positioning tool according to the embodiment of the present utility model;

FIG. 3 is a schematic diagram illustrating a third view angle of the bus bar positioning tool according to the embodiment of the present utility model;

FIG. 4 is a schematic diagram illustrating an assembly of a busbar positioning fixture and a battery pack according to an embodiment of the present utility model;

fig. 5 is an enlarged partial schematic view at a in fig. 4.

Icon: 1000-confluence positioning tool; 100-a main board; 110-adjusting holes; 120-through holes; 130-sink; 200-positioning sheets; 210-mounting holes; 220-an intermediate plate; 230-positioning piece; 231-projections; 300-locating pins; 400-handle; 2000-battery pack; 3000-bus.

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 of the present utility model. 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, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

At present, when a busbar is welded, a busbar positioning tool for a lithium battery without a module is generally designed according to a digital-to-analog size, and is usually used for processing the busbar positioning tool on a whole bakelite plate and limiting by utilizing the outline size of the busbar. However, the general size of the lithium battery pack without the module scheme is larger, and in the assembly process, due to the fact that a certain gap exists between the size and the digital model after various tolerance accumulation, the bus bar positioning tool designed through the digital model size is different from the battery pack with the size after actual assembly, and the bus bar is placed through the bus bar positioning tool, so that offset exists between the pole piece and the electrode column hole of the battery core, and when severe, the problems of partial welding of the battery core and the like can occur, and the whole module is scrapped.

Based on this, referring to fig. 1, a bus positioning tool 1000 according to an embodiment of the utility model can effectively improve the above-mentioned technical problems. The bus bar positioning tool 1000 can align the holes on the bus bar 3000 with the holes of the battery core electrode post by adjusting the positions of the positioning sheets 200, so that the problems of eccentric welding of the battery core and the like are prevented, and the whole battery module is scrapped.

Fig. 1 is a schematic diagram of a first view angle of a busbar positioning fixture 1000 according to an embodiment of the present utility model; fig. 2 is a schematic diagram illustrating a front view of a busbar positioning fixture 1000 according to an embodiment of the present utility model; fig. 3 is a schematic diagram of a back view direction of a busbar positioning fixture 1000 according to an embodiment of the present utility model, as shown in fig. 1, 2 and 3, the busbar positioning fixture 1000 includes a main board 100 and a plurality of positioning plates 200, a plurality of adjustment holes 110 are formed on the main board 100, the plurality of adjustment holes 110 are arranged in an array, a through hole 120 is formed in the middle of the main board 100, and the through hole 120 is used for exposing a busbar 3000. For each positioning plate 200, a mounting hole 210 is formed at a position of the positioning plate 200 corresponding to the adjusting hole 110, the positioning plate 200 is mounted on one side of the main board 100 through the adjusting hole 110 and the mounting hole 210 by using a fastener, and the positioning plates 200 are used for limiting and fixing the busbar 3000.

Because the current busbar positioning fixture 1000 is mostly perforated according to the shape of the busbar 3000, the busbar positioning fixture 1000 cannot adjust its structural dimension after finishing the processing. Therefore, when an error occurs in the assembled dimensions of the busbar positioning fixture 1000 and the battery pack 2000, the holes on the busbar 3000 may be misaligned with the holes of the battery cell pole when the busbar 3000 is placed by the busbar positioning fixture 1000, and bias welding may occur during welding, resulting in rejection of the whole battery module.

Therefore, in the bus positioning tool 1000 provided in this embodiment, a portion of the limiting and fixing bus 3000 is made into a movable member, referring to fig. 1, 2 and 3, the positioning sheet 200 in this embodiment is mounted on the main board 100 of the bus positioning tool 1000 through a fastener, the main board 100 is provided with the adjusting hole 110, and the size of the adjusting hole 110 is larger than the size of the mounting hole 210 on the positioning sheet 200. That is, the positioning plate 200 can move up and down in the adjusting hole 110, and the position of the positioning plate 200 is adjusted to adjust the placing position of the busbar 3000, so that the positioning plate 200 is adjusted until the hole on the limitable fixed busbar 3000 is aligned with the pole hole of the battery cell. The position of each spacer 200 is adjustable. One busbar 3000 structure is limited and fixed by every two adjacent positioning plates 200.

In addition, the adjusting hole 110 may be designed as a concentric circular hole of the mounting hole 210, and the size of the adjusting hole 110 is slightly larger than that of the mounting hole 210, but the adjusting range of the concentric circular hole is small, and the movable range of the positioning plate 200 is small. In order to increase the adjustment range, please continue to refer to fig. 1, 2 and 3, and referring to fig. 5, in this embodiment, the adjustment hole 110 is designed as a waist-shaped hole, the middle of the adjustment hole 110 is rectangular, and two ends of the rectangle are semicircular. The adjusting hole 110 adopts a waist-shaped hole, which increases the left-right moving range of the positioning plate 200, so that the adjustable range is increased, namely, when larger size deviation occurs, the positioning hole on the bus bar 3000 is aligned with the hole on the cell pole by adjusting the position of the positioning plate 200 on the main board 100, and the occurrence of bias welding and other conditions is prevented.

The above-mentioned "the positioning plate 200 is mounted on one side of the motherboard 100 by using the fastening piece through the adjusting hole 110 and the mounting hole 210", the fastening piece in this embodiment is a screw, the busbar positioning fixture 1000 is placed on the battery pack 2000, the busbar 3000 is placed, when the positioning hole on the busbar 3000 is not aligned with the hole of the cell pole, the fixing screw of the positioning plate 200 on the busbar positioning fixture 1000 can be adjusted, and the positioning plate 200 is adjusted to a suitable position and then locked. In this way, each positioning piece 200 on the bus bar positioning tool 1000 can be locked after being adjusted to a proper position, so that the subsequent battery pack 2000 production is facilitated. Of course, other fasteners, such as bolts, screws, etc., may be used as long as the spacer 200 can be mounted to the main board 100, and are not limited thereto.

Referring to fig. 1 and 2, in order to facilitate the taking and placing of the busbar positioning fixture 1000, a handle 400 is mounted on a side of the main board 100 facing away from the mounting of the positioning sheet 200. In this embodiment, two handles 400 are disposed on the main board 100 and located at two ends of the main board 100 in the arrangement direction of the positioning pieces 200. The handle 400 may be welded to the main board 100 of the busbar positioning fixture 1000, but other fixing methods, such as bolting, may be used, which is not limited herein. Of course, only one handle 400 may be provided on the motherboard 100, so long as the bus bar positioning tool 1000 is convenient to take and place, which is not limited herein.

In order to identify the busbar positioning fixture 1000 or facilitate connection with other related products, please continue to refer to fig. 1 and 2, one or more sinking slots 130 are provided on a side of the main board 100 of the busbar positioning fixture 1000 facing away from the positioning plate 200, where the sinking slots 130 are used for installing two-dimensional codes and related product models. The shape of the sink 130 may be rectangular, elliptical, circular, or other shapes, without limitation.

Referring to fig. 3, in order to fixedly connect the busbar positioning fixture 1000 to the battery pack 2000, a plurality of positioning pins 300 are disposed on one side of the positioning plate 200 mounted on the motherboard 100 of the busbar positioning fixture 1000, and the positioning pins 300 are used for fixedly connecting the motherboard 100 and the battery pack 2000. In this embodiment, two positioning pins 300 are provided, and the two positioning pins 300 are located at two sides of the same end of the main board 100 along the arrangement direction of the positioning pieces 200. The locating pins 300 are inserted into the end plates of the battery pack 2000 to fix the bus bar positioning fixture 1000 to the battery pack 2000.

In order to limit the fixed bus bar 3000, please refer to fig. 3, and refer to fig. 4 and 5, for each positioning piece 200, the positioning piece 200 includes a middle plate 220 and at least two positioning pieces 230, the positioning pieces 230 are connected to two ends of the middle plate 220, the middle plate 220 is connected to the main board 100, each positioning piece 230 is located outside the main board 100, one end of each positioning piece 230, which is far away from the middle plate 220, has a protruding portion 231, the protruding portion 231 is used for limiting the fixed bus bar 3000, and part of the positioning pieces 230 has two protruding portions 231. The protruding portion 231 is configured to cooperate with a corresponding groove on the busbar 3000 to limit and fix the busbar 3000 to move left and right. The positioning member 230 near both ends of the handle 400 in this embodiment has only one protrusion 231. Each of the positioning members 230 on the remaining positioning sheet 200 has two protrusions 231. The shape and number of the protrusions 231 on the positioning member 230 are determined by the shape of the bus bar 3000, and only one or two specific cases are shown in this embodiment.

With continued reference to fig. 3, and in conjunction with fig. 4 and 5, considering the size and placement of the bus bar 3000, the positioning sheet 200 provided in the present embodiment has two positioning members 230 not located on the same axis of the middle plate 220. Of course, depending on the placement of other types of bus bars 3000, the positions of the two positioning members 230 and the middle plate 220 may be changed according to the bus bars 3000, and the two positioning members 230 may be located on the same axis of the middle plate 220. In order to enhance the structural strength of the positioning sheet 200 and the structural strength of the whole bus bar positioning tool 1000, the middle plate 220 in the present embodiment is a nearly parallelogram, and increases the contact area with the motherboard 100. And the thickness of the locating plate 200 is thicker than that of the main board 100, so that the structural strength of the locating plate 200 can be enhanced, and the strength of the whole bus bar positioning tool 1000 can be further enhanced.

With continued reference to fig. 3, and in conjunction with fig. 4 and 5, in order to reasonably use space, the positioning sheet 200 includes three positioning members 230, wherein two positioning members 230 are connected to one end of the middle plate 220, and the other positioning member 230 is connected to the other end of the middle plate 220, because of considering the space positions of the two ends of the main plate 100. In this embodiment, the two positioning pieces 200 mounted on the main board 100 near the handle 400 include three positioning members 230.

Of course, the spacer 200 may be designed in various shapes according to the shapes of the various bus bars 3000. When the bus 3000 is changed in size, the shape and size of the positioning plate 200 can be redesigned, and the bus positioning tool 1000 does not need to be integrally reworked. The bus bar positioning tool 1000 has universality, and improves the efficiency of producing the battery pack 2000 or the battery module.

With continued reference to fig. 3, the portion of the main board 100 connected to the spacer 200 is thinner than the portion of the main board 100 not connected to the spacer 200 in the present embodiment. Since both ends of the main board 100 are connected to the battery pack 2000, both ends of the main board 100, i.e., the portion of the main board 100 to which the positioning sheet 200 is not connected, require a certain thickness to be well connected and fixed to the battery pack 2000. In order to save materials and reduce weight, the thickness of the portion of the main board 100 where the spacer 200 is connected is thinner than the thickness of the portion of the main board 100 where the spacer 200 is not connected, which ensures the structural strength thereof by increasing the thickness of the spacer 200. Of course, the shape and thickness of the main board 100 are determined according to the battery pack 2000 to be manufactured.

The working principle of the busbar positioning fixture 1000 according to the present embodiment is as follows:

after the busbar positioning fixture 1000 is fixed to the battery pack 2000 through the positioning pin 300, the busbar 3000 is placed, when the hole on the busbar 3000 is not aligned with the hole of the battery cell pole, the positioning plate 200 fixing screw on the busbar positioning fixture 1000 can be adjusted, the positioning plate 200 is adjusted to a proper position, the hole on the busbar 3000 is aligned with the hole of the battery cell pole, the screw is locked, and finally the busbar 3000 is welded to the battery pack 2000.

In summary, the bus positioning tool 1000 includes a main board 100 and a plurality of positioning plates 200, the main board 100 is provided with a plurality of adjusting holes 110, the plurality of adjusting holes 110 are arranged in an array, a through hole 120 is provided in the middle of the main board 100, the through hole 120 is used for exposing the bus 3000, for each positioning plate 200, a mounting hole 210 is provided at a position of the positioning plate 200 corresponding to the adjusting hole 110, the positioning plate 200 is mounted on one side of the main board 100 by adopting a fastener through the adjusting hole 110 and the mounting hole 210, and the plurality of positioning plates 200 are used for limiting and fixing the bus 3000. The position of the positioning plate 200 is adjusted through the adjusting hole 110, so that the holes on the bus bar 3000 are aligned with the holes of the battery core pole, the problem of partial welding is prevented, and the whole battery module is scrapped.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model.

Claims (10)

1. The utility model provides a position frock is located to converging, its characterized in that includes:

the bus bar comprises a main board (100), wherein a plurality of adjusting holes (110) are formed in the main board (100), the adjusting holes (110) are arranged in an array, a through hole (120) is formed in the middle of the main board (100), and the through hole (120) is used for exposing a bus bar (3000);

the positioning plates (200) are arranged at positions, corresponding to the adjusting holes (110), of each positioning plate (200), mounting holes (210) are formed in the positions, corresponding to the adjusting holes (110), of each positioning plate (200), the positioning plates (200) are mounted on one side of the main board (100) through the adjusting holes (110) and the mounting holes (210) by fasteners, and the positioning plates (200) are used for limiting and fixing the busbar (3000).

2. The busbar positioning fixture as set forth in claim 1, wherein for each of the positioning pieces (200), the positioning piece (200) includes a middle plate (220) and at least two positioning pieces (230), the positioning pieces (230) are connected to two ends of the middle plate (220), the middle plate (220) is connected to the main plate (100), each positioning piece (230) is located outside the main plate (100), a protrusion (231) is located at one end of each positioning piece (230) away from the middle plate (220), and the protrusion (231) is used for limiting and fixing the busbar (3000).

3. The busbar positioning fixture according to claim 2, wherein part of the positioning member (230) has two protruding portions (231).

4. A busbar positioning fixture according to claim 2 or 3, wherein part of the positioning pieces (200) comprises three positioning pieces (230), wherein two positioning pieces (230) are connected to one end of the intermediate plate (220), and the other positioning piece (230) is connected to the other end of the intermediate plate (220).

5. The busbar positioning fixture according to claim 1, wherein the middle of the adjusting hole (110) is rectangular, and two ends of the rectangular are semicircular.

6. The busbar positioning fixture according to claim 1, wherein the thickness of the positioning piece (200) is thicker than the thickness of the main board (100).

7. The bus bar positioning tool according to claim 1, wherein a plurality of positioning pins (300) are arranged on one side of the main board (100) on which the positioning sheet (200) is mounted, and the positioning pins (300) are used for fixedly connecting the main board (100) with the battery pack (2000).

8. The bus bar positioning tool according to claim 1, wherein a portion of the main board (100) to which the positioning sheet (200) is connected is thinner than a portion of the main board (100) to which the positioning sheet (200) is not connected.

9. The busbar positioning fixture according to claim 1, wherein a handle (400) is mounted on a side of the main board (100) facing away from the mounting of the positioning piece (200).

10. The busbar positioning fixture according to claim 1, wherein one or more sinking grooves (130) are formed in one side of the main board (100) facing away from the positioning sheet (200), and the sinking grooves (130) are used for installing two-dimensional codes and related product models.