CN216958321U

CN216958321U - Battery pack assembly

Info

Publication number: CN216958321U
Application number: CN202123021635.4U
Authority: CN
Inventors: 崔瑾冉; 陈溢奇; 陈莹
Original assignee: Fujian Tuyou New Energy Vehicle Group Co ltd
Current assignee: Fujian Tuyou New Energy Vehicle Group Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-07-12
Anticipated expiration: 2031-12-03

Abstract

The utility model provides a battery pack assembly, which belongs to the field of battery assemblies and comprises a battery pack main body and a connecting piece, wherein the battery pack main body is provided with a battery pack main body; the battery pack main body is used for accommodating a battery core, and two ends of the battery pack main body are connected with cover plates; the connecting piece is arranged in the battery pack main body and is integrated with the battery pack main body; the connecting piece is in surface contact with the battery core. According to the battery pack assembly provided by the utility model, the flatness of the side part of the connecting piece is ensured by the planar arrangement of one side of the connecting piece, which is far away from the main body of the battery pack. The firmness of the connection relation of the connecting piece and the plastic shell is guaranteed, the size of the space where the square electric core can be placed inside the battery pack main body is increased, the increased space range can reach more than 5% of the inner space of the battery pack main body, and then the whole electric quantity of the battery assembly is improved. The battery pack assembly has the advantages of being good in structural manufacturability and beneficial to mass and standardized production.

Description

Battery pack assembly

Technical Field

The utility model belongs to the field of battery components, and particularly relates to a battery pack component.

Background

Compared with buses, taxis and shared bicycles, electric bicycles are becoming more and more people's travel choice due to the characteristics of optimal cost performance and good travel experience.

The battery pack shell of the existing electric bicycle is connected with the upper plastic shell and the lower plastic shell through circular screw holes in a fastening and connecting mode. The problems that the space inside the battery pack shell is limited and the whole electric quantity of the battery pack is limited exist in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery pack assembly, and aims to solve the technical problems that the internal space of a battery pack shell is limited and the whole electric quantity of a battery pack is limited in the prior art.

The present invention provides a battery pack assembly comprising:

the battery pack comprises a battery pack main body, a battery pack and a battery pack, wherein the battery pack main body is used for accommodating a battery core, and two ends of the battery pack main body are connected with cover plates;

the connecting piece is arranged in the battery pack main body and is of an integral structure with the battery pack main body; the connecting piece is in surface contact with the battery core.

Preferably, one end of the connecting piece, which is far away from the inner wall surface of the battery pack main body, is a plane end; the flat end is used for being in surface contact with the battery core.

Preferably, the connecting piece is provided with a connecting groove; the open end of the connecting groove is arranged on the plane end.

Preferably, a thread structure is arranged in the connecting groove; the threaded structure is used for connecting the connecting groove and the cover plate.

Preferably, the connecting groove penetrates the connecting member in an axial direction of the connecting member.

Preferably, the connection member penetrates the battery pack main body in a length direction of the battery pack main body.

Preferably, the connecting groove includes a sector and an isosceles triangle connected to the sector; the length of the waist of the isosceles triangle part is equal to the radius of the sector part; the length of the bottom edge of the isosceles triangle part is equal to the width of the plane end.

Preferably, the distance between the connecting end of the connecting piece and the battery pack main body and the plane end is 4.5 mm; the distance between two ends of the connecting groove is 3.5 mm; the radius size of scallop is 2 mm.

Preferably, the distance between the connecting piece and the battery pack main body and the plane end is 6 mm; the distance between two ends of the connecting groove is 5 mm; the radius of the sector is 3 mm.

Preferably, the battery pack main body is of an integrally formed structure; the side surface of the connecting piece consists of an arc-shaped surface and planes connected with the two ends of the arc-shaped surface; the arc-shaped surface of the connecting piece is connected with the battery pack main body.

The battery pack assembly provided by the utility model has the beneficial effects that: compared with the prior art, the battery pack assembly provided by the utility model has the advantages that the flatness of the side part of the connecting piece is ensured by the planar arrangement of the side of the connecting piece, which is far away from the main body of the battery pack. The firmness of the connection relation of the connecting piece and the plastic shell is guaranteed, the size of the space where the square electric core can be placed inside the battery pack main body is increased, the increased space range can reach more than 5% of the inner space of the battery pack main body, and then the whole electric quantity of the battery assembly is improved. The battery pack assembly has the advantages of less raw material use, reduced production cost, light weight and firm and durable integral structure. Good structural manufacturability and is beneficial to mass and standardized production. The connecting piece is located the inside of battery package main part, has kept the whole of battery package main part appearance smooth.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

Fig. 1 is a schematic view showing a structure of a battery pack assembly used in the prior art;

fig. 2 is a schematic side view of a battery pack assembly according to an embodiment of the present invention;

FIG. 3 shows an enlarged schematic view of the structure at B in FIG. 2;

fig. 4 is a schematic perspective view illustrating a battery pack assembly according to an embodiment of the present invention;

fig. 5 shows an enlarged schematic view of the structure at a in fig. 4.

Icon: 1. a connecting member; 2. connecting grooves; 3. a planar end; 4. the battery pack main body.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 5, a battery pack assembly according to the present invention will now be described. The battery pack assembly includes: a battery pack body 4 and a connector 1; the battery pack main body 4 is used for accommodating battery cells, and cover plates are connected to two ends of the battery pack main body 4. The connecting piece 1 is arranged in the battery pack main body 4, and the connecting piece 1 and the battery pack main body 4 are of an integral structure; the connecting member 1 is in surface contact with the battery cell.

Compared with the prior art, the battery pack assembly provided by the utility model has the advantages that the connecting piece 1 and the battery pack main body 4 are of an integrated structure, so that the firmness of the connection relationship between the connecting piece 1 and the battery pack main body 4 is ensured, and the firmness of the connection relationship between the battery pack main body 4 and the plastic shell is further improved. Connecting piece 1 and battery core face contact, the size in the space that can be used to place square electric core inside the increase battery package main part 4, the space scope of increase can reach more than 5% of the 4 inner spaces of battery package main part, and then improve this battery pack's whole electric quantity. The battery pack assembly has the advantages of less raw material use, reduced production cost, light weight and firm and durable integral structure. The battery pack assembly has the characteristics of good structural manufacturability and contribution to mass and standardized production. The connecting piece 1 is positioned inside the battery pack main body 4, and keeps the overall flatness of the appearance of the battery pack main body 4.

In the present embodiment, one end of the connecting member 1 facing away from the inner wall surface of the battery pack main body 4 is a flat end 3; the flat end 3 is intended to be in face contact with the cell. The provision of the flat end 3 ensures the flatness of the side of the connector 1. Not only enlarges the size of the space which can be used for placing the square electric core inside the battery pack main body 4. Stability when spacing to the battery core has been improved simultaneously.

As an embodiment of the present invention, please refer to fig. 1 to 5, a connection part 1 is provided with a connection groove 2; the open end of the coupling slot 2 is arranged on the flat end 3.

In the present embodiment, a threaded structure is provided in the connecting groove 2. The thread structure is used for connecting the connecting groove 2 and the cover plate. The thread formation is provided along the length of the coupling groove 2. The coupling groove 2 penetrates the coupling member 1 in the length direction of the coupling member 1. The connecting groove 2 adopts an extrusion forming process to penetrate through the connecting piece 1, so that the connecting piece can be formed at one time, the processing procedure is simple, and the production efficiency is high.

As another specific embodiment provided by the present invention, the connecting piece 1 is provided with a connecting groove 2; the connection grooves 2 are respectively provided at both ends of the connection member 1. At this time, the connecting groove 2 is a circular screw hole structure.

In this embodiment, the connection groove 2 may also penetrate both ends of the connection member 1 in the length direction of the connection member 1.

As an embodiment of the present invention, please refer to fig. 1 to 5, the shape of the connecting member 1 is not unique, and the shape of the connecting member 1 includes one or more of an arc-shaped structural member, a diamond-shaped structural member, a trapezoid structural member, a triangular structural member, and an irregular structural member, as long as the battery pack main body 4 can be fastened and connected with the plastic case through the connecting member 1.

In the present embodiment, the connecting member 1 is an arc-shaped structural member. Specifically, the side surface of the connecting piece 1 is composed of an arc-shaped surface and planes connected with two ends of the arc-shaped surface, and two ends of the connecting piece 1 are planes; the arc surface of the connecting piece 1 is connected with the inner wall surface of the battery pack main body 4. The end face of the connecting piece 1 which is plane is the plane end 3.

In this embodiment, the connection position of the flat end 3 and the arc portion is an arc transition structure. Avoid the edges and corners to cause accidental injury to users.

As an embodiment of the present invention, please refer to fig. 1 to 5, the connecting member 1 has a plurality of sets; each set of connectors 1 is provided on any inner wall surface of the battery pack main body 4. The connector 1 penetrates the battery pack body 4 in the longitudinal direction of the battery pack body 4. That is, both ends of the connecting member 1 are flush with both ends of the battery pack body 4.

As an embodiment of the present invention, referring to fig. 1 to 5, the shape of the connecting groove 2 includes one or more of circular arc, triangle, and trapezoid. Through the area size of the hookup location of increase plastic casing and connecting piece 1, the fastness of effectual improvement battery package main part 4 and plastic casing connected relation.

In the present embodiment, the connecting groove 2 includes a sector and an isosceles triangle connected to the sector; the length of the waist of the isosceles triangle part is equal to the radius of the sector part; the length of the bottom edge of the isosceles triangle part is equal to the width of the plane end 3.

As an embodiment of the present invention, referring to fig. 1 to 5, the battery pack main body 4 is an integrally formed structure. The battery pack body 4 and the connecting piece 1 are of an integrally formed structure. The battery pack main body 4 adopts an extrusion forming process, so that the production efficiency is higher. The battery pack assembly is of an integrally formed structure.

As an embodiment of the present invention, please refer to fig. 1 to 5, a distance between the connection end of the connection member 1 and the battery pack main body 4 and the plane end 3 is 4.5 mm; the radius of the sector part is 2 mm; the height of the isosceles triangle part is 1.5 mm.

As an embodiment of the present invention, please refer to fig. 1 to 5, a distance between the connection end of the connection member 1 and the battery pack main body 4 and the plane end 3 is 6 mm; the radius of the sector is 3 mm. The height of the isosceles triangle part is 2 mm.

In this embodiment, the battery pack main body 4 is a barrel structure. Two ends of the battery pack main body 4 are respectively connected with the plastic shell.

The fastening connection mode between battery package main part 4 and the plastic shell is complete circular screw hole in the battery package of current electric bicycle, because the space of battery package main part 4 is limited, consequently leads to the total electric quantity of electric bicycle battery package to do not go up. The utility model can be considered that the circular arc at the upper part of the circular screw hole is removed to be changed into a flat shape, so that the fastening strength is not influenced after the circular arc is treated, the internal space is saved, and the whole electric quantity of the battery pack of the electric bicycle can be improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and the present invention shall be covered by the claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A battery pack assembly, comprising:

the battery pack comprises a battery pack main body (4) and a battery pack, wherein the battery pack main body (4) is used for accommodating a battery core, and two ends of the battery pack main body (4) are connected with cover plates;

the connecting piece (1) is arranged in the battery pack main body (4), and the connecting piece (1) and the battery pack main body (4) are of an integral structure; the connecting piece (1) is in surface contact with the battery core.

2. A battery pack assembly as claimed in claim 1, wherein: one end of the connecting piece (1) departing from the inner wall surface of the battery pack main body (4) is a plane end (3); the flat end (3) is used for surface contact with the battery core.

3. A battery pack assembly as claimed in claim 2, wherein: the connecting piece (1) is provided with a connecting groove (2); the open end of the connecting groove (2) is arranged on the plane end (3).

4. A battery pack assembly according to claim 3, wherein: and a threaded structure is arranged in the connecting groove (2), and is used for connecting the connecting groove (2) with the cover plate.

5. A battery pack assembly according to any one of claims 3-4, wherein: the connecting groove (2) penetrates through the connecting piece (1) along the length direction of the connecting piece (1).

6. The battery pack assembly of claim 5, wherein: the connecting piece (1) penetrates through the battery pack main body (4) along the length direction of the battery pack main body (4).

7. The battery pack assembly of claim 5, wherein: the connecting groove (2) comprises a sector part and an isosceles triangle part connected with the sector part; the length of the waist of the isosceles triangle part is equal to the radius of the sector part; the length of the bottom edge of the isosceles triangle part is equal to the width of the plane end (3).

8. A battery pack assembly according to claim 7, wherein: the distance between the connecting end of the connecting piece (1) and the battery pack main body (4) and the plane end (3) is 4.5 mm; wherein the distance between the two ends of the connecting groove (2) is 3.5 mm; the radius size of scallop is 2 mm.

9. A battery pack assembly as claimed in claim 7, wherein: the distance between the connecting piece (1) and the battery pack main body (4) and the plane end (3) is 6 mm; the distance between two ends of the connecting groove (2) is 5 mm; the radius of the sector is 3 mm.

10. A battery pack assembly as claimed in claim 1, wherein: the battery pack main body (4) is of an integrally formed structure; the side surface of the connecting piece (1) is composed of an arc-shaped surface and planes connected with two ends of the arc-shaped surface; the arc-shaped surface of the connecting piece (1) is connected with the battery pack main body (4).