CN217934082U - Battery pack - Google Patents

Abstract

The utility model relates to a battery technology field especially relates to a battery pack, and battery pack includes battery pack and roof beam, and the battery pack is provided with the end plate towards the tip of roof beam, and the end plate passes through the glue film with the roof beam to bond, and the end plate has the first surface towards the roof beam, and the first surface is provided with the boss that extends towards the roof beam, and the glue film is located the top of boss. Through the structure design, the utility model provides a battery package can utilize the boss to provide the protection to the glue film at the in-process of entrying, avoids the glue film to be extruded to cut the rubbing to avoid the frictioning phenomenon to produce, optimize the entrying effect, promote the product quality of battery package.

Description

Battery pack

Technical Field

The utility model relates to a battery technology field especially relates to a battery package.

Background

The boxing procedure belongs to an important part of the production and manufacturing process of the battery pack, and particularly relates to the step of assembling the battery into a box body. In the case entering process, the end insulating plate of the battery pack needs to be bonded and fixed with the beam structure of the case body through glue, however, in the case that the battery pack is put into the case body from top to bottom, the beam structure is easy to extrude and rub the glue at the lower end, so that the glue scraping phenomenon is caused, the case entering effect is influenced, and the product quality of the battery pack is reduced.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a battery pack that avoids the occurrence of the scraping phenomenon in the boxing process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

according to an aspect of the utility model, a battery pack is provided, wherein, including group battery and roof beam, the group battery orientation the tip of roof beam is provided with the end plate, the end plate with the roof beam passes through the glue film and bonds, the end plate has the orientation the first surface of roof beam, the first surface is provided with the orientation the boss that the roof beam extends, the glue film is located the top of boss.

According to the above technical scheme, the utility model provides an advantage and positive effect of battery package lie in:

the utility model provides a battery package sets up the boss at the end plate towards the first surface of roof beam to set up the glue film in the top of boss. Through the structure design, the utility model provides a battery package can utilize the boss to provide the protection to the glue film at the in-process of entrying, avoids the glue film to be extruded to cut the rubbing to avoid the frictioning phenomenon to produce, optimize the entrying effect, promote the product quality of battery package.

Drawings

Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

fig. 1 is a schematic perspective view illustrating a battery pack according to an exemplary embodiment;

fig. 2 is a top view of the battery pack shown in fig. 1;

FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 3;

fig. 5 is a schematic perspective view of an end plate of the battery pack shown in fig. 3;

fig. 6 to 8 are partial sectional views of battery packs according to exemplary embodiments having other structural differences, respectively.

The reference numerals are explained below:

100. a battery pack;

200. a beam;

201. a second surface;

210. a groove;

300. an end plate;

301. a first surface;

3011. a first region;

310. a boss;

322. a through groove;

330. a flanging structure;

400. a glue layer;

d. thickness;

h. depth;

l. extension length.

Detailed Description

Exemplary embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments, and its several details are capable of modification in various other respects, all without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized, and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures to fall within the scope of the invention.

Referring to fig. 1, a schematic perspective view of a battery pack according to the present invention is representatively illustrated. In this exemplary embodiment, the present invention provides a battery pack that is described by way of example as applied to an in-vehicle battery. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the inventive concepts described herein to other types of battery packs or other processes, and still fall within the scope of the principles of the presently disclosed invention.

As shown in fig. 1, in an embodiment of the present invention, a battery pack includes a battery pack 100 and a beam 200. Referring to fig. 2-5 in combination, fig. 2 representatively illustrates a top view of a battery pack which can embody principles of the present invention; representatively illustrated in fig. 3 isbase:Sub>A partial cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2; an enlarged schematic view of portion B of fig. 3 is representatively illustrated in fig. 4; a schematic perspective view of an end plate 300 of a battery pack that can embody principles of the present invention is representatively illustrated in fig. 5. The structure, connection mode and functional relationship of the main components of the battery pack according to the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 4, in an embodiment of the present invention, an end plate 300 is disposed at an end of the battery pack 100 facing the beam 200, and the end plate 300 is bonded to the beam 200 by a glue layer 400. On this basis, the end plate 300 has a first surface 301 facing the beam 200, the first surface 301 is provided with a boss 310 extending towards the beam 200, and the glue layer 400 is located above the boss 310. Through the structure design, the utility model provides a battery package can utilize boss 310 to provide the protection to glue film 400 at the in-process of entrying, avoids glue film 400 to be pushed to cut the scratch to avoid the frictioning phenomenon to produce, optimize the vanning effect, promote the product quality of battery package.

As shown in fig. 3 and 4, in an embodiment of the present invention, the boss 310 may be located at a bottom of a side surface of the end plate 300 facing the beam 200. Through the structure design, the utility model discloses can make the regional maximize of arranging of the glue film 400 that is located the boss 310 top, strengthen the bonding strength between end plate 300 and the roof beam 200.

As shown in fig. 3 and 4, in an embodiment of the present invention, an extension length L of the boss 310 with respect to the first surface 301 may be equal to a thickness d of the glue layer 400. Through the structure design, the utility model discloses can provide the use of protection glue film 400 when utilizing boss 310, guarantee that the both sides of glue film 400 can bond respectively in end plate 300 and roof beam 200.

Referring to fig. 6, a partial cross-sectional view of a battery pack in another embodiment that can embody principles of the present invention is representatively illustrated in fig. 6, and in particular, can be seen in fig. 3 taken at a position of fig. 2 and fig. 4 taken at an enlarged position of fig. 3.

As shown in fig. 6, in an embodiment of the present invention, the beam 200 has a second surface 201 facing the end plate 300, the second surface 201 may be provided with a groove 210, the groove 210 corresponds to the position of the boss 310, and the groove 210 can receive a part of the boss 310. Through the structure design, the utility model discloses can utilize recess 210 to hold partial boss 310 when utilizing boss 310 to provide the usefulness of protection glue film 400, guarantee the bonding strength between end plate 300 and the roof beam 200, be convenient for to the compression of glue film 400 for the bonding process improves the bonding ability, and provides the limit function along vertical direction for end plate 300 and roof beam 200.

As shown in fig. 6, based on the structural design that the second surface 201 of the beam 200 is provided with the groove 210 for accommodating the boss 310, in an embodiment of the present invention, the glue layer 400 is adhered between the first surface 301 and the second surface 201, and the extension length L of the boss 310 relative to the first surface 301 may be less than or equal to the sum of the thickness d of the glue layer 400 and the recess depth h of the groove 210 relative to the second surface 201. Through the structure design, the utility model discloses can set up the boss 310 that extension length L is greater than the thickness d of glue film 400 to further optimize the protection effect of boss 310 to glue film 400. And simultaneously, the utility model discloses can utilize recess 210 to hold partial boss 310, guarantee that the both sides of glue film 400 can bond respectively in first surface 301 and second surface 201.

In the above description of the embodiments with reference to fig. 3 or 6, the description of the thickness d of the glue layer 400, specifically, the thickness of the glue layer 400 after the battery pack 100 is placed in the box, does not consider the original thickness of the glue layer 400 before the battery pack is placed in the box, that is, does not consider whether the thickness of the glue layer 400 after the battery pack is placed in the box changes under the double-side pressing of the end plate 300 and the beam 200. In consideration of the above variations, the relative relationship between the thickness d and the extension length L of the protrusion 310 may be flexibly adjusted by combining the material characteristics and the deformation degree of the adhesive layer 400, and the like, which is not limited to this. For example, when considering the thickness variation of the glue layer 400 generated by the pressing of the end plate 300 and the beam 200 on both sides, even if the glue layer 400 has a thickness equal to or slightly greater than the extension length of the boss 310 when not boxed, after boxed, the thickness of the glue layer 400 generated by the pressing of the end plate 300 and the beam 200 on both sides may be reduced to be less than the extension length of the boss 310, and the boss 310 may be partially received in the groove 210 of the beam 200, or the thickness of the glue layer 400 after boxed may be equal to the extension length of the boss 310, and the boss 310 is not received in the groove 210.

Referring to fig. 7, a partial cross-sectional view of a battery pack in another embodiment that embodies principles of the present invention is representatively illustrated in fig. 7, and in particular, may be seen in fig. 3 taken at a position taken from fig. 2 and fig. 4 taken at an enlarged position from fig. 3.

As shown in fig. 7, in an embodiment of the present invention, taking the structural design that the second surface 201 of the beam 200 is provided with the groove 210 as an example, the glue layer 400 may be formed after being cured by coating a glue material, wherein the glue material may overflow to the gap between the boss 310 and the groove 210 when not being cured, so that the part of the glue layer 400 formed after being cured is located between the boss 310 and the groove 210. Through the structure design, the utility model discloses the joint strength of stiffening beam 200 and end plate 300 can further be strengthened.

Referring to fig. 8, a partial cross-sectional view of a battery pack in another embodiment that embodies principles of the present invention is representatively illustrated in fig. 8, and in particular, may be seen in fig. 3 taken at a position taken from fig. 2 and fig. 4 taken at an enlarged position from fig. 3.

As shown in fig. 8, in an embodiment of the present invention, still taking the structural design that the second surface 201 of the beam 200 is provided with the groove 210 as an example, one end of the boss 310 extending toward the beam 200 may abut against the bottom of the groove 210, that is, the groove 210 faces the bottom wall of the beam 200. Through the structure design, the utility model discloses can guarantee that glue film 400 is whole to be located between first surface 301 and the second surface 201, further promote the guard action to glue film 400, avoid the glue film to adopt the coating to glue the material solidification and glue the material when forming and spill over simultaneously.

In an embodiment of the present invention, the adhesive layer 400 may be a double-sided adhesive tape. In some embodiments, the adhesive layer 400 can also be formed by curing the coating adhesive material.

As shown in fig. 3 and 4, based on the design that the glue layer 400 is a double-sided adhesive tape, in an embodiment of the present invention, the lower end of the glue layer 400 can be overlapped on the upper surface of the boss 310. Through the structure design, when glue film 400 adopted the double faced adhesive tape, the utility model discloses the upper surface that can utilize boss 310 plays the positioning action to the double faced adhesive tape when the assembly, can guarantee the adhesive area of double faced adhesive tape and roof beam 200 by the at utmost simultaneously. Furthermore, when the glue layer 400 is formed by curing the glue coating material, the present invention can utilize the upper surface of the boss 310 to prevent the glue from overflowing downwards when the glue is not cured.

As shown in fig. 5, in an embodiment of the present invention, the end plate 300 is provided with a rib in the first region 3011 of the first surface 301. On the basis of this, the side of the glue layer 400 facing the end plate 300 may be adhered to the first region 3011, i.e., the glue layer 400 may cover at least part of the stiffener. Through the structure design, the utility model discloses can realize arranging of glue film 400 on the basis that the first surface 301 of end plate 300 is provided with the strengthening rib. In addition, due to the concave-convex structure adopted by the reinforcing ribs, the bonding area between the glue layer 400 and the first surface 301 can be larger, and the bonding strength can be further enhanced. In some embodiments, when the end plate 300 is provided with the stiffener on the first region 3011 of the first surface 301, the glue layer 400 may also be adhered to other regions of the first surface 301, that is, the glue layer 400 may also be adhered to the end plate 300 in a manner of being offset from the stiffener, and the embodiments are not limited to the above embodiments.

Based on the structural design that end plate 300's first surface 301 was provided with the strengthening rib the utility model discloses an in the embodiment, the part that the strengthening rib closes on end plate 300 top can be formed with the portion of dodging for dodge group battery 100 through the end plate 300 top draw forth the end subassembly. Specifically, taking the rib as a rib structure as an example, the relief portion may be a recess formed by a portion of the rib being missing. Through the structure design, the utility model discloses can avoid end plate 300 to produce with the end subassembly of drawing forth of group battery 100 when setting up the strengthening rib and interfere.

As shown in fig. 5, based on the structural design that the first surface 301 of the end plate 300 is provided with the reinforcing ribs, in an embodiment of the present invention, the first surface 301 of the end plate 300 may have a plurality of first regions 3011 arranged at intervals, and a through groove 322 is formed between adjacent first regions 3011. Through the structure design, the utility model discloses can be when the frock clamping jaw snatchs group battery 100, the frock clamping jaw centre gripping of being convenient for is in this logical groove 322 department. In addition, the end plate 300 shown in fig. 5 has four through grooves 322, which exemplifies that one battery pack 100 includes four battery rows, and the four through grooves 322 correspond to the middle portions of the four battery rows, respectively.

As shown in fig. 5, in an embodiment of the present invention, the top of the end plate 300 may be provided with a flange structure 330, and the flange structure 330 is folded back to the side of the first surface 301. Through the structure design, the utility model discloses can utilize flanging structure 330 to play location and spacing effect in group battery 100 assembling process.

It is noted herein that the battery packs shown in the drawings and described in this specification are but a few examples of the many types of battery packs that can employ the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the battery pack as shown in the drawings or described in the present specification.

To sum up, the utility model provides a battery pack sets up boss 310 at end plate 300 towards the first surface 301 of roof beam 200 to set up glue film 400 in the top of boss 310. Through the structure design, the utility model provides a battery package can utilize boss 310 to provide the protection to glue film 400 at the income case in-process, avoids glue film 400 to be extrudeed to scrape and rub to avoid the frictioning phenomenon to produce, optimize the income case effect, promote the product quality of battery package.

Exemplary embodiments of a battery pack as set forth in the present invention are described and/or illustrated in detail above. Embodiments of the invention are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or step of one embodiment can also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. described and/or illustrated herein, the articles "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and the description are used merely as labels, and are not numerical limitations of their objects.

While the present invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.

Claims (10)

1. The utility model provides a battery pack, its characterized in that, includes group battery and roof beam, the group battery orientation the tip of roof beam is provided with the end plate, the end plate with the roof beam passes through the glue film and bonds, the end plate has the orientation the first surface of roof beam, the first surface is provided with the orientation the boss that the roof beam extends, the glue film is located the top of boss.

2. The battery pack of claim 1, wherein the boss is located at the bottom of the first surface of the end plate.

3. A battery pack, as recited in claim 1, wherein the beams have a second surface facing the end plates, the second surface being provided with a groove, the boss being at least partially received in the boss.

4. The battery pack of claim 3, wherein an end of the boss extending toward the beam abuts a trough bottom of the groove.

5. The battery pack of claim 3, wherein the glue layer is adhered between the first surface and the second surface, and the extension length of the boss relative to the first surface is less than or equal to the sum of the thickness of the glue layer and the depth of the recess relative to the second surface.

6. The battery pack of claim 3, wherein the adhesive layer is formed by curing a coating adhesive material, and the adhesive layer is partially located between the boss and the groove.

7. The battery pack according to any one of claims 1 to 5, wherein the adhesive layer is a double-sided adhesive tape.

8. The battery pack according to claim 7, wherein the lower end of the adhesive layer is attached to the upper surface of the boss.

9. The battery pack according to any one of claims 1 to 6, wherein the end plate is provided with a reinforcing rib at a first region of the first surface; wherein, the glue line is adhered to the first area towards one side of the end plate.

10. The battery pack according to claim 9, wherein:

an avoiding part is formed at the part, close to the top of the end plate, of the reinforcing rib and is used for avoiding the leading-out end assembly, led out from the top of the end plate, of the battery pack; and/or

The first surface is provided with a plurality of first areas which are arranged at intervals, and through grooves are formed between the adjacent first areas.

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