CN213340546U

CN213340546U - Battery packaging shell

Info

Publication number: CN213340546U
Application number: CN202022465322.7U
Authority: CN
Inventors: 边映枚; 龚娟娟
Original assignee: Guangdong Pow Tech New Power Co ltd
Current assignee: Guangdong Pow Tech New Power Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-01
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a battery preparation field especially relates to a battery packaging casing. The battery package casing specifically includes: the battery comprises an upper shell and a lower shell, wherein a containing cavity for containing the battery body is formed between the upper shell and the lower shell; the upper shell comprises a frame and a bottom plate, a dispensing structure is arranged at the corner of the frame along the direction vertical to the bottom plate, and an ultrasonic structure is arranged at the non-corner position of the frame along the direction vertical to the bottom plate; the lower shell is provided with a point glue structure groove at the position corresponding to the point glue structure, the point glue structure is inserted in the point glue structure groove, an ultrasonic structure groove is arranged at the position corresponding to the ultrasonic structure, and the ultrasonic structure is inserted in the ultrasonic structure groove. The utility model discloses a mode that structure and supersound structure combine is glued to the casing adoption point for the power battery who has gluey shell has not only accorded with the drop test requirement, all has obvious improvement effect to reduction input cost and improvement production efficiency in addition.

Description

Battery packaging shell

Technical Field

The utility model relates to a battery preparation field especially relates to a battery packaging casing.

Background

The power battery is a power source for providing power source for the tool, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. The power battery has the highest specific energy in the currently known chemical power sources, and has the advantages of high voltage, large power, wide range of use temperature, stable discharge performance, long storage life and no need of maintenance. As a novel power technology, the power generation device is gradually applied to the fields of electric automobiles, electric trains, electric bicycles, mobile communication equipment, military and aerospace, has a very wide application range, and becomes the development direction of future energy.

At present, the power battery with the rubber shell mainly adopts the following two modes during packaging: 1) the upper rubber shell is packaged with the lower rubber shell only by adopting a dispensing structure. However, since the plastic shell is a plastic structure, the plastic structure is easy to deform, and therefore the glue dispensing structure needs to fix the plastic shell by means of the pressure maintaining clamp until glue is cured in the packaging process. In the batch production, a large number of pressure maintaining clamps are required to be installed, and the material cost and the labor cost are obviously increased; 2) the upper rubber shell is only packaged with the lower rubber shell by adopting an ultrasonic structure, and the mass of the attached rubber shell of the power battery is large, so that the ultrasonic structure is not stable after packaging, the rubber shell is easy to fall off in a drop test, and the reject ratio of a product is high.

By integrating the above situations, there is a need for a battery package casing that can meet the drop test requirements, improve production efficiency, and reduce input cost.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model aims to provide a battery packaging shell accords with the drop test requirement, reduces production input cost and improves production efficiency simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme:

a battery package can, comprising: the battery comprises an upper shell and a lower shell, wherein an accommodating cavity for accommodating a battery body is formed between the upper shell and the lower shell;

the upper shell comprises a frame and a bottom plate, wherein a spot gluing structure is arranged at the corner position of the frame along the direction vertical to the bottom plate, and an ultrasonic structure is arranged at the non-corner position of the frame along the direction vertical to the bottom plate;

the lower shell is provided with a dispensing structure groove at a position corresponding to the dispensing structure, the dispensing structure is inserted in the dispensing structure groove, an ultrasonic structure groove is arranged at a position corresponding to the ultrasonic structure, and the ultrasonic structure is inserted in the ultrasonic structure groove.

Preferably, the dispensing structure comprises a first structural layer and an adhesive layer, and the adhesive layer is arranged on the side, away from the bottom plate, of the first structural layer.

Preferably, the adhesive layer is glue, and the overall thickness of the dispensing structure is greater than the overall thickness of the ultrasonic structure.

Preferably, a rounded transition is used at the connection between the first structural layer and the adhesive layer.

Preferably, the ultrasonic structure comprises a second structural layer and a clamping layer, wherein the clamping layer is arranged at intervals on one side, far away from the bottom plate, of the second structural layer to form an ultrasonic line.

Preferably, the frame includes a short side and a long side, the ultrasonic lines of the two opposite short sides are symmetrically arranged, and the ultrasonic lines of the two opposite long sides are symmetrically arranged.

Preferably, the clamping layer is integrally formed with the second structural layer.

Preferably, the clamping layer has a triangular cross section in a direction perpendicular to the base plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a battery package casing includes casing and lower casing, wherein, goes up the casing and includes frame and bottom plate, and the corner on the frame sets up the point and glues the structure, and the non-turning position department of frame sets up the supersound structure, and the lower casing position department that corresponds sets up some glued structure grooves, supersound structure grooves respectively. The point is glued the structure and is glued in the point and glue the structure inslot, strengthens the fastness of casing, and the ultrasonic structure has guaranteed the steadiness of other joints in ultrasonic structure inslot through ultrasonic welding, and the power battery who has the shell of gluing can accord with the drop test requirement for the combination design of point structure and ultrasonic structure. Meanwhile, due to the design of the ultrasonic structure, the use of the pressure maintaining clamp is reduced, the input cost is reduced, and the production efficiency is improved obviously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of an upper case structure of a battery packaging case according to an embodiment of the present invention;

fig. 2 is a schematic view of a lower case structure of a battery packaging case according to an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of the battery package casing according to the embodiment of the present invention.

[ description of figures ]: the ultrasonic packaging structure comprises an upper shell 1, a lower shell 2, a frame 11, a bottom plate 12, a dispensing structure 13, an ultrasonic structure 14, a dispensing structure groove 21 and an ultrasonic structure groove 22

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Example one

Referring to fig. 1-3, the present invention provides a battery packaging casing, which specifically includes an upper casing 1 and a lower casing 2, wherein a containing cavity is formed between the upper casing 2 and the lower casing 3, and the containing cavity is used for containing a battery body;

the upper shell 1 comprises a frame 11 and a bottom plate 12, wherein a dispensing structure 13 is arranged at a corner position of the frame 11 along a direction perpendicular to the bottom plate, and an ultrasonic structure 14 is arranged at a non-corner position of the frame 11 along a direction perpendicular to the bottom plate;

a dispensing structure groove 21 is arranged at the position of the lower shell 2 corresponding to the dispensing structure 13, and an ultrasonic structure groove 22 is arranged at the position corresponding to the ultrasonic structure 14.

When the upper shell 1 and the lower shell 2 are connected, the dispensing structures 13 are arranged in the dispensing structure grooves 21, and the dispensing structures 13 can strengthen the firmness of the upper shell 1 and the lower shell 2; the ultrasonic structure 14 is arranged in the ultrasonic structure groove 22, and the upper shell 1 and the lower shell 2 are connected by adopting an ultrasonic plastic welding mode at the position of the shell corresponding to the ultrasonic structure 14. Adopt supersound structure 14 to reduce the use of pressurize anchor clamps, improved production efficiency and reduced the input cost from this, structure 13 is glued to the point simultaneously also can strengthen the fastness of epitheca 1 and inferior valve body 2.

The battery packaging shell adopts a mode of combining the dispensing structure 13 and the ultrasonic structure 14, so that the power battery with the rubber shell can meet the requirements of drop test on one hand, and the investment cost is reduced and the production efficiency is improved obviously on the other hand.

In an alternative embodiment, the dispensing structure 13 comprises a first structural layer and an adhesive layer, the adhesive layer being arranged on a side of the first structural layer remote from the base plate 12, the adhesive layer being optionally glue. The first structural layer has a certain thickness, and the dispensing structure 13 is inserted into the dispensing glue groove 21, so that the firmness of the upper shell 1 and the lower shell 2 is enhanced.

In an optional embodiment, the overall thickness of the dispensing structure 13 is greater than the overall thickness of the ultrasonic structure 14, and when the housing is actually packaged, the glue of the dispensing structure 13 may overflow to the positions of the ultrasonic structures 14 on the two sides, so as to further enhance the firmness of the housing.

In actual production, four corners of the dot cement molding groove 21 are arranged to be in a right-angled structure, so that the dot cement structure 13 can be smoothly inserted into the dot cement molding groove 21 during housing encapsulation, in an alternative embodiment, a rounded corner is used at the joint of the first structural layer and the adhesive layer. Alternatively, the joints of the first structural layer and the adhesive layer are connected by a right-angle connection or an irregular curved connection, and the connection is not particularly limited.

In an alternative embodiment, the ultrasonic structure 14 includes a second structural layer and a clamping layer, the clamping layer is disposed at an interval on the side of the second structural layer far from the base plate 12 and forms the ultrasonic line. The upper case 1 and the lower case 2 are bonded together by welding the fused ultrasonic wires. Optionally, the clamping layer and the second structural layer are integrally formed, so that the production process can be simplified. Optionally, the clamping layer has a triangular cross-section in a direction perpendicular to the base 12, which configuration facilitates the snapping of the ultrasonic structure 14 into the ultrasonic structure groove 22.

Optionally, the frame 11 includes short sides and long sides, the ultrasonic lines of the two opposite short sides are symmetrically arranged, and the ultrasonic lines of the two opposite long sides are symmetrically arranged. The welding effect of the four sides is kept consistent, and the stability of the whole shell is ensured.

In summary, the battery package casing of the present embodiment includes an upper casing 1 and a lower casing 2, the upper casing 1 includes a frame 11 and a bottom plate 12, a glue applying structure 13 and an ultrasonic structure 14 are respectively disposed at a corner and a non-corner of the frame 11 along a direction perpendicular to the bottom plate, and a glue applying groove 21 and an ultrasonic structure groove 22 are respectively disposed at the corresponding lower casing 2. Dispensing structure 13 combines with supersound structure 14 to make the power battery who has the shell of gluing can accord with the drop test requirement, and in addition, dispensing structure 13 strengthens casing 1 and lower casing 2's fastness, and other positions adopt supersound structure 14, have reduced dispensing structure 13 and have also reduced the use of pressurize anchor clamps from this, have improved production efficiency and have reduced the input cost.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A battery package casing, comprising: the battery comprises an upper shell (1) and a lower shell (2), wherein a containing cavity for containing a battery body is formed between the upper shell (1) and the lower shell (2);

the upper shell (1) comprises a frame (11) and a bottom plate (12), wherein a spot gluing structure (13) is arranged at the corner position of the frame (11) along the direction vertical to the bottom plate (12), and an ultrasonic structure (14) is arranged at the non-corner position of the frame (11) along the direction vertical to the bottom plate (12);

a dispensing structure groove (21) is formed in the position, corresponding to the dispensing structure (13), of the lower shell (2), the dispensing structure (13) is inserted into the dispensing structure groove (21), an ultrasonic structure groove (22) is formed in the position, corresponding to the ultrasonic structure (14), of the lower shell, and the ultrasonic structure (14) is inserted into the ultrasonic structure groove (22).

2. The battery package casing according to claim 1, characterized in that the dispensing structure (13) comprises a first structural layer and an adhesive layer, the adhesive layer being arranged on a side of the first structural layer remote from the base plate (12).

3. The battery package casing according to claim 2, characterized in that the adhesive layer is glue, and the overall thickness of the dispensing structure (13) is greater than the overall thickness of the ultrasonic structure (14).

4. The battery package casing of claim 2, wherein the first structural layer and the adhesive layer are joined at a rounded transition.

5. The battery package casing of claim 1, wherein the ultrasonic structure (14) comprises a second structural layer and a clamping layer, and the clamping layer is arranged at intervals on one side of the second structural layer far away from the bottom plate (12) to form an ultrasonic line.

6. The battery pack case according to claim 5, wherein the frame (11) comprises short sides and long sides, and ultrasonic lines of two opposite short sides are symmetrically arranged and ultrasonic lines of two opposite long sides are symmetrically arranged.

7. The battery package casing of claim 5, wherein the clamping layer is integrally formed with the second structural layer.

8. The battery package casing of claim 5, wherein the clamping layer is triangular in cross-section in a direction perpendicular to the base plate (12).