CN212676369U

CN212676369U - Battery module

Info

Publication number: CN212676369U
Application number: CN202021505213.7U
Authority: CN
Inventors: 卢勇; 谢东吴; 曾龙; 任宇航
Original assignee: Suzhou Key New Power Technology Co ltd
Current assignee: Suzhou Key New Power Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-09
Anticipated expiration: 2030-07-27

Abstract

The utility model provides a battery module, include: a plurality of cells; the shell is provided with a containing cavity for containing the battery core; the electric core covers are multiple and arranged in one-to-one correspondence with the electric cores, and each electric core is covered with one electric core cover. The utility model provides a compatible poor problem of battery module among the prior art.

Description

Battery module

Technical Field

The utility model relates to a battery module technical field particularly, relates to a battery module.

Background

The current battery module can set up an integral electric core roof above electric core generally after in groups, is equipped with the opening up and can supplies to gather the line that the pencil put into wherein to detain and can supply to set up the buckle fixed at the insulation board of its top on the electric core roof. The disadvantages are that: 1. the battery cell top plate adopts an integral structure, has poor compatibility and cannot meet the requirement of battery modules with different serial-parallel numbers; 2. the wire buckle is easy to be off and has no function of tightening the wire harness; 3. during installation, the insulating plate is bent and arched, the edges of the two sides are clamped through the buckles and then the insulating plate is pressed flat, reliability is low, and the insulating plate is easy to take off.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a battery module, which solves the problem of poor compatibility of the battery module in the prior art.

In order to achieve the above object, the utility model provides a battery module, include: a plurality of cells; the shell is provided with a containing cavity for containing the battery core; the electric core covers are multiple and arranged in one-to-one correspondence with the electric cores, and each electric core is covered with one electric core cover.

Further, the cell cover includes: a plurality of second bulges are arranged at two ends of the battery cell cover in the length direction, and the lower surfaces of the second bulges are provided with cavities; the first mounting holes are multiple, are located between the second protrusions at the two ends of the battery cell cover and are matched with the pole columns of the battery cells.

Further, the battery core cover further comprises a first bulge, the first bulge is located in the middle of the battery core cover in the length direction, the first mounting holes are located on two opposite sides of the first bulge, and the first bulge protrudes in the direction away from the battery core.

Furthermore, the side of the electric core cover is provided with an annular notch, two openings at two ends of the annular notch form two binding openings, and the binding belt can enter from one binding opening and penetrate out from the other binding opening after passing through the annular notch.

Furthermore, the annular lacks the groove and is a plurality of, all is provided with annular and lacks the groove between each first mounting hole, and lacks the groove with the annular of the symmetry axis both sides that electric core lid width direction is parallel to be located electric core lid two relative long edges respectively.

Further, the both ends terminal surface of electric core lid has the buckle, the casing side has seted up the card hole, or the both ends side of electric core lid has the card hole, the casing side has seted up the buckle, and the buckle stretches into and blocks to establish in the card hole to with electric core lid joint on the casing.

Further, all the cell covers include a first top cover and a second top cover, the first top cover and the second top cover are alternately arranged on each adjacent cell, the side surface of the first top cover is provided with a protruding piece extending along the width direction, the side surface of the second top cover is provided with a concave part extending along the width direction, and the protruding piece can extend into the concave part.

Further, the battery module still includes the roof, and the one side that holds the chamber is opening side, and the roof lid is established in the opening side that holds the chamber to be connected with the second arch of electric core lid, and shelter from each electric core lid.

Further, the second mounting hole has been seted up at the bellied top of second, and the via hole has been seted up to the roof, and battery module still includes the fastener, and the fastener is worn to establish in via hole and second mounting hole to cover the roof at electric core.

Further, the top plate and the fastener are both insulating members.

Use the technical scheme of the utility model, be provided with a plurality of electric core covers through adopting split type structure to one-to-one sets up between electric core cover and the electric core, all covers on every electric core and is equipped with an electric core cover, thereby makes the quantity of electric core cover carry out corresponding setting according to the quantity of the electric core of installation in the casing, has improved the compatibility of electric core cover, satisfies the different cluster of same kind of electric core and counts, the battery module demand of different length, and practices thrift design, mould cost.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of a battery module according to the present invention;

fig. 2 is a schematic structural view illustrating a first top cap of the battery module in fig. 1;

fig. 3 is a schematic structural view illustrating a second top cap of the battery module in fig. 1.

Wherein the figures include the following reference numerals:

10. an electric core; 20. a housing; 30. an electrical core cover; 31. a first protrusion; 32. a first mounting hole; 33. a second protrusion; 34. an annular notch; 35. buckling; 36. a first top cover; 361. a tab; 37. a second top cover; 371. a recess; 38. a second mounting hole; 40. a top plate; 41. a via hole; 50. a fastener.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that the battery module compatibility among the prior art is poor, the utility model provides a battery module.

A battery module as shown in fig. 1 to 3 includes a plurality of battery cells 10, a casing 20, and a battery cell cover 30, where the casing 20 has a receiving cavity for receiving the battery cells 10; the electric core covers 30 are arranged in a one-to-one correspondence with the electric cores 10, and each electric core 10 is covered with one electric core cover 30.

This embodiment is provided with a plurality of electric core covers 30 through adopting split type structure to one-to-one sets up between electric core cover 30 and electric core 10, all cover on every electric core 10 and be equipped with an electric core cover 30, thereby make the quantity of electric core cover 30 carry out corresponding setting according to the quantity of the electric core 10 of installation in casing 20, improved electric core cover 30's compatibility, satisfy the different cluster of the same kind of electric core and parallel number, the battery module demand of different length, and practice thrift design, mould cost.

As shown in fig. 2 and fig. 3, the battery cover 30 is integrally a rectangular plate structure, the battery cover 30 includes a plurality of second protrusions 33 and first mounting holes 32, two second protrusions 33 are provided in this embodiment, and are located at two ends of the battery cover 30 in the length direction, an upper surface of each second protrusion 33 is a plane, and a lower surface of each second protrusion 33 has a cavity so as to be matched with a subsequent fastener 50; first mounting hole 32 is a plurality of, and this embodiment also is provided with two, and is located between the second arch 33 at electric core lid 30 both ends, also is located the both sides with the parallel symmetry axis of electric core lid 30 width direction simultaneously, and first mounting hole 32 runs through electric core lid 30 along the thickness direction of electric core lid 30 to make the utmost point post of electric core 10 can stretch into or pass first via hole 41, realize that first via hole 41 dodges the cooperation with two utmost point posts of electric core 10.

In this embodiment, the cell cover 30 further includes a first protrusion 31, the first protrusion 31 is located in the middle of the length direction of the cell cover 30 and covers the width direction of the cell cover 30, and the two first mounting holes 32 are respectively located on two opposite sides of the first protrusion 31 along the length direction of the cell cover 30, so that the second protrusion 33, the first mounting hole 32, the first protrusion 31, the another first mounting hole 32, and the another second protrusion 33 are sequentially located from one end of the cell cover 30 to the other end along the length direction of the cell cover 30. The first protrusion 31 of the present embodiment protrudes in a direction away from the battery cell 10, and may be formed by grid-shaped filling or directly processed, and when the battery cell cover 30 is covered on the battery cell 10, the first protrusion 31 may shield the safety valve of the battery cell 10.

In this embodiment, electric core lid 30 length direction's side has the annular of following the width direction indent and lacks groove 34, and annular lacks groove 34 and is incomplete annular, and this embodiment sets to the hemicycle, and the both ends opening that the annular lacks groove 34 and the upper surface intercommunication of electric core lid 30 and form two binding openings, and during the binding, the ribbon gets into from a binding opening and wears out by another binding opening behind annular lacks groove 34 to tighten the pencil and fix on electric core lid 30, avoid the accident of pencil to deviate from.

Preferably, the annular grooves 34 are plural, four are provided in the present embodiment, and two of the annular grooves 34 are divided into one group, and a group of annular grooves 34 is provided between each first mounting hole 32, more specifically, between the first protrusion 31 and two first mounting holes 32, and the annular grooves 34 on two sides of the symmetry axis parallel to the width direction of the electric core cover 30, that is, the annular grooves 34 on two sides of the first protrusion 31 are respectively located on two opposite long sides of the electric core cover 30, so as to increase the reliability and convenience of binding the wire harness. Of course, only one annular notch 34 may be provided, and the specific number and position of the annular notches may be correspondingly set according to the number of the wires and the binding mode.

In this embodiment, the end faces of the two ends of the battery core cover 30, that is, the end face of the second protrusion 33 away from the first protrusion 31, have the buckle 35, and the side face of the casing 20 has the clamping hole, so that when the battery core cover 30 is installed, after the battery core cover 30 is placed on the corresponding battery core 10, the buckle 35 is inserted into and clamped in the clamping hole, and the battery core cover 30 can be clamped on the casing 20, thereby completing the installation of the battery core cover 30. The specific arrangement number of the buckles 35 and the buckle holes can be correspondingly arranged according to the requirement. Of course, the side surfaces of the two ends of the battery cell cover 30 may also be provided with fastening holes, and the side surface of the casing 20 is provided with a fastener 35.

As shown in fig. 2 and 3, all the cell covers 30 include a first top cover 36 and a second top cover 37, the first top cover 36 and the second top cover 37 are alternately disposed on each adjacent cell 10, a side surface of the first top cover 36 has a protruding piece 361 protruding in a width direction of the cell cover 30, a side surface of the second top cover 37 has a recessed portion 371 extending in the width direction, when the first top cover 36 and the second top cover 37 are mounted, the protruding piece 361 of the first top cover 36 protrudes into the recessed portion 371 of the second top cover 37, so that the protruding piece 361 and the recessed portion 371 are in lap joint, and thus a gap between the first top cover 36 and the second top cover 37 can be shielded by the protruding piece 361, so that spatters are effectively prevented from entering between the cell cover 30 and the cell 10 during laser welding of busbars, and normal operation of the battery module is ensured. The protrusion 361 of the present embodiment is located at the side of the first protrusion 31 of the first cap 36, the recess 371 is opened at the lower surface of the second protrusion 33 of the second cap 37, and the shape of the protrusion 361 and the recess 371 can be set according to the shape of the lower surface of the first protrusion 31, and since the lower surface of the first protrusion 31 of the present embodiment is set to be arched, the protrusion 361 and the recess 371 are also arched.

Of course, in addition to the above-described arrangement of the cell covers 30 as the first top cover 36 and the second top cover 37, the cell covers 30 may be provided in one of the completely same shape and form, and in this case, the protruding pieces 361 and the concave portions 371 need not be provided.

As shown in fig. 1, the battery module further includes a top plate 40, one side of the accommodating cavity is an opening side, the top plate 40 covers the opening side of the accommodating cavity, and is connected to the second protrusion 33 of the cell cover 30 and covers each cell cover 30. In the present embodiment, the top of the casing 20 is set as an opening side, the cell cover 30 is disposed on each cell 10 by the side cover of the opening of the top, and the top plate 40 is also disposed on the opening side, so as to integrally close the casing 20 and protect the cell 10 and other components inside the casing.

In this embodiment, the second mounting hole 38 is formed in the upper surface of the second protrusion 33, correspondingly, the top plate 40 is formed with the through hole 41, the battery module further includes a fastening member 50, the fastening member 50 is inserted into the through hole 41 and the second mounting hole 38, and the second mounting hole 38 is communicated with the cavity below, so that the fastening member 50 effectively plays a role in fastening connection. The above arrangement fixes the top plate 40 on the core cover 30 by the fastener 50, and the core cover 30 is mounted on the casing 20 by the cooperation of the buckle 35 and the buckle hole, so that the top plate 40 is mounted on the casing 20.

Preferably, the top plate 40 is an insulating plate, and the fastening member 50 is a plastic expansion rivet, both of which are insulating members, on the one hand, to perform an insulating function, and on the other hand, to ensure the reliability of the connection, and are not easy to be released in case of vibration.

It should be noted that, a plurality in the above embodiments means at least two.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the problem of poor compatibility of the battery module in the prior art is solved;

2. the number of the electric core covers can be correspondingly set according to the number of the electric cores installed in the shell, so that the compatibility of the electric core covers is improved, and the requirements of battery modules with the same type of electric cores in different serial-parallel numbers and different lengths are met;

3. the annular notch for tightly binding the wire harness on the battery cell cover tightly binds and fixes the wire harness on the battery cell cover, so that the wire harness is prevented from being accidentally separated;

4. the mounting structures among the electric core cover, the top plate and the shell are simple and convenient, and are stable and reliable;

5. the first top cover and the second top cover are alternately arranged, so that splashing of the laser welding busbar is effectively prevented from entering between the battery cell cover and the battery cell, and normal work of the battery module is guaranteed;

6. the plastic expansion rivet plays an insulating role on one hand, ensures the connection reliability on the other hand, and is not easy to separate under the vibration condition.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module, comprising:

a plurality of cells (10);

a housing (20), wherein the housing (20) is provided with a containing cavity for containing the battery core (10);

the battery cell cover comprises a plurality of battery cell covers (30), the battery cell covers (30) are arranged in one-to-one correspondence with the battery cells (10), and each battery cell (10) is covered with one battery cell cover (30).

2. The battery module according to claim 1, wherein the cell cover (30) comprises:

the second protrusions (33) are multiple and are positioned at two ends of the electric core cover (30) in the length direction, and cavities are formed in the lower surfaces of the second protrusions (33);

the first mounting holes (32) are multiple, are positioned between the second bulges (33) at the two ends of the electric core cover (30), and are matched with the poles of the electric core (10).

3. The battery module according to claim 2, wherein the core cover (30) further comprises a first protrusion (31), the first protrusion (31) is located at the middle of the core cover (30) in the length direction, the first mounting holes (32) are located at two opposite sides of the first protrusion (31), and the first protrusion (31) protrudes in a direction away from the battery core (10).

4. The battery module according to claim 2, wherein the side surface of the battery core cover (30) is provided with an annular notch (34), two binding openings are formed at two ends of the annular notch (34), and a binding belt can enter from one binding opening and pass through the annular notch (34) and then exit from the other binding opening.

5. The battery module according to claim 4, wherein the annular grooves (34) are provided in plurality, the annular grooves (34) are provided between the first mounting holes (32), and the annular grooves (34) on both sides of a symmetry axis parallel to the width direction of the electrical core cover (30) are respectively located on two opposite long sides of the electrical core cover (30).

6. The battery module according to claim 1, wherein the end surfaces of the two ends of the core cover (30) are provided with fasteners (35), the side surface of the housing (20) is provided with fastener holes, or the end surfaces of the core cover (30) are provided with fastener holes, the side surface of the housing (20) is provided with fasteners (35), and the fasteners (35) extend into and are fastened in the fastener holes to fasten the core cover (30) to the housing (20).

7. The battery module according to claim 1, wherein all the cell covers (30) include first top covers (36) and second top covers (37), the first top covers (36) and the second top covers (37) are alternately arranged on adjacent cells (10), a side surface of the first top cover (36) has a protruding piece (361) protruding in the width direction, a side surface of the second top cover (37) has a recessed portion (371) extending in the width direction, and the protruding piece (361) can protrude into the recessed portion (371).

8. The battery module according to claim 2, further comprising a top plate (40), wherein one side of the receiving cavity is an open side, and the top plate (40) covers the open side of the receiving cavity, is connected to the second protrusion (33) of the cell cover (30), and shields each of the cell covers (30).

9. The battery module according to claim 8, wherein a second mounting hole (38) is formed at the top of the second protrusion (33), a through hole (41) is formed in the top plate (40), and the battery module further comprises a fastener (50), wherein the fastener (50) penetrates through the through hole (41) and the second mounting hole (38) and fixes the top plate (40) to the electric core cover (30).

10. The battery module according to claim 9, wherein the top plate (40) and the fastening member (50) are both insulating members.