CN218896789U

CN218896789U - Battery module, battery pack and vehicle

Info

Publication number: CN218896789U
Application number: CN202223356542.1U
Authority: CN
Inventors: 刘学文; 于洪泽
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-04-21
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a battery module, a battery pack and a vehicle, wherein the battery module comprises: the pole column of each battery cell is positioned at two ends of the battery cell in the length direction; the PCB is arranged at one end of the battery monomer in the length direction; the adaptor is formed by extending one end of a battery monomer in the length direction to the other end, one end of the adaptor is connected with the pole, and the other end of the adaptor is connected with the PCB. According to the battery module, the PCB is arranged at one end of the battery unit in the length direction, the adapter extends from one end of the battery unit in the length direction to the other end, and the PCB and the adapter are both positioned below the aluminum bar, so that the space at two ends of the battery module is fully utilized, the PCB and the adapter do not occupy the length space of the battery module additionally, the space utilization rate of the battery module is improved, the universality is good, the structure is simple, the assembly is convenient, and the production cost is reduced.

Description

Battery module, battery pack and vehicle

Technical Field

The utility model relates to the technical field of new energy vehicles, in particular to a battery module, a battery pack and a vehicle.

Background

In the related technology, the development trend of the current power battery system is that structural members and electric components are simplified and reduced gradually, the requirements of the whole package on the volume grouping efficiency and the charging quantity are higher and higher, sufficient space cannot be reserved for the arrangement of wire harnesses and copper bars in the battery package, and the electrical harness removing trend is more and more obvious; the more widely the blade cell is applied, the blade cell is mostly in the form of two-side outlet polar posts and one-side or two-side outlet explosion-proof valves, and the blade module adopts integrated slave board design, so that the collection of wiring harnesses can be greatly reduced. When the traditional single-side or two-side explosion-proof valve battery core is arranged, and the slave board is integrated, the slave board needs to be erected above the busbar and the explosion-proof valve in order to reserve an exhaust space for the battery core, so that the length of the module is lengthened; when the battery cell adopts a neutral uncharged shell to carry out voltage acquisition, transfer and transmission, in order to facilitate the welding of a transfer nickel sheet, a boss design is adopted on a battery cell cover plate, so that the cost of the battery cell cover plate is increased; the shell electrification and non-electrification schemes, the integrated slave plate sampling schemes have large difference, and the universal unification cannot be realized

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model aims to provide a battery module which is ingenious in structural design and good in universality.

The utility model also provides a battery pack with the battery module.

The utility model further provides a vehicle with the battery pack.

The battery module according to the first aspect of the utility model includes: the plurality of battery cells are arranged in the width direction of the battery cells, and the polar post of each battery cell is positioned at two ends of the battery cell in the length direction; the PCB extends along the length direction of the battery cell, and is arranged at one end of the battery cell in the length direction; the adaptor is extended from one end of the battery cell to the other end in the length direction, one end of the adaptor is connected with the pole, and the other end of the adaptor is connected with the PCB.

According to the battery module, the PCB is arranged at one end of the battery unit in the length direction, the adapter extends from one end of the battery unit in the length direction to the other end, and the PCB and the adapter are both positioned below the aluminum bar, so that the space at two ends of the battery module is fully utilized, the PCB and the adapter do not occupy the length space of the battery module additionally, the space utilization rate of the battery module is improved, the universality is good, the structure is simple, the assembly is convenient, and the production cost of the battery module is reduced.

In some embodiments, a communication connector is disposed on the PCB board, and the other end of the adaptor is connected to the communication connector.

In some embodiments, the battery module further includes: the aluminum bar assembly comprises a plurality of aluminum bar connecting pieces, wherein each aluminum bar connecting piece is connected between every two adjacent battery monomer poles, and one end of each adapter piece is connected with each aluminum bar connecting piece.

In some embodiments, the PCB board is connected to the aluminum bar connector through a collection member.

In some embodiments, the adapter has a bumper strip formed thereon with a plurality of bumper strips.

In some embodiments, each of the battery cells has an explosion-proof valve provided at one side surface thereof in a height direction of each of the battery cells.

In some embodiments, the battery module further includes: the tray is arranged at the lower parts of the battery monomers and used for bearing the battery monomers.

In some embodiments, the battery module further includes: and the cover plate covers the two ends of the battery cells in the length direction, and is connected with the tray.

The battery pack according to the second aspect of the present utility model includes the battery module according to the first aspect of the present utility model.

According to the battery pack disclosed by the utility model, the battery module of the first aspect is arranged, so that the space utilization rate of the battery pack is improved, the volume of the battery pack is reduced, and the production cost of the battery pack is reduced.

A vehicle according to a third aspect of the utility model includes the battery pack according to the above second aspect of the utility model.

According to the vehicle provided by the utility model, the battery pack of the second aspect is arranged, so that the safety performance of the vehicle is improved, the production cost of the vehicle is reduced, and the assembly space of the battery pack is reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic view of a battery module according to an embodiment of the present utility model;

fig. 2 is a schematic view of the battery module shown in fig. 1 at another view angle;

fig. 3 is a schematic view of a battery module in which an adapter is connected to a communication connector;

fig. 4 is a schematic view of a rear view of the battery module shown in fig. 3;

fig. 5 is a schematic view of a battery module according to another embodiment of the present utility model;

fig. 6 is a schematic view of the battery module shown in fig. 5;

fig. 7 is a schematic view of another view of the battery module shown in fig. 6;

fig. 8 is an assembly schematic view of the battery module shown in fig. 7.

Reference numerals:

100. a battery module;

1. a battery cell; 11. an explosion-proof valve; 12. a pole;

2. a PCB board; 21. a communication connector;

3. an adapter;

4. an aluminum bar assembly; 41. an aluminum bar connection;

5. a tray; 51. a first connection hole;

6. a cover plate; 61. a second connection hole;

7. and (5) collecting the piece.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A battery module 100 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 1 to 8.

As shown in fig. 1, a battery module 100 according to an embodiment of the first aspect of the present utility model includes: a plurality of battery cells 1, a PCB board 2 and an adapter 3.

Specifically, a plurality of battery monomers 1 are arranged in the width direction of the battery monomers 1, the pole 12 of each battery monomer 1 is located at two ends of the battery monomers 1 in the length direction, the PCB 2 extends along the length direction of the battery monomers 1, the PCB 2 is arranged at one end of the battery monomers 1 in the length direction, the adapter 3 extends from one end of the battery monomers 1 in the length direction to the other end, one end of the adapter 3 is connected with the pole 12, and the other end of the adapter 3 is connected with the PCB 2. Therefore, the battery module 100 has a smart structural design, and the internal space of the battery module 100 is fully utilized.

According to the battery module 100 provided by the embodiment of the utility model, the PCB 2 is arranged at one end of the battery cell 1 in the length direction, the adapter 3 extends from one end of the battery cell 1 in the length direction to the other end, and the PCB 2 and the adapter 3 are both positioned below the aluminum bar, so that the space at two ends of the battery module 100 is fully utilized, the PCB 2 and the adapter 3 do not occupy the length space of the battery module 100 additionally, the space utilization rate of the battery module 100 is improved, the universality is good, the structure is simple, the assembly is convenient, and the production cost of the battery module 100 is reduced.

Preferably, the adapter 3 may be an FFC (flexible flat cable) or an FPC (flexible printed wiring).

In some embodiments of the present utility model, the PCB board 2 is provided with a communication connector 21, and the other end of the adapter 3 is connected to the communication connector 21. Specifically, the communication connector 21 may be a double-layer communication connector 21 or a single-layer communication connector 21, when the double-layer communication connector 21 is used, the adaptor 3 of any model is adapted, and when the single-layer communication connector 21 is used, the production cost of the battery module 100 is reduced.

In some embodiments of the present utility model, the battery module 100 further includes: the aluminum bar assembly 4, the aluminum bar assembly 4 includes a plurality of aluminum bar connection members 41, the aluminum bar connection members 41 are connected between the poles 12 of each adjacent two of the battery cells 1, and one end of the adapter member 3 is connected with each aluminum bar connection member 41. Thus, the battery module 100 has a simple structure, and the provision of the aluminum bar connection member 41 can prevent the switch or bus from being broken due to a short circuit or thermal account or cold shrinkage.

In some embodiments of the present utility model, the PCB board 2 is connected to the aluminum bar connector 41 through the collecting member 7. Because the metal stability of metallic nickel is good, therefore gather piece 7 is the nickel piece, is convenient for nickel piece and aluminium bar connecting piece 41 welding.

In some embodiments of the utility model, the adapter 3 is provided with a bumper strip having a plurality of bumper strips formed thereon. Here, the adapter 3 is an FPC, and a plurality of segments of safety slits are provided on the FPC, so that the adapter can be effectively and safely disconnected when a high-voltage sampling short circuit occurs, arc discharge is avoided, and the safety performance of the battery module 100 is improved.

In some embodiments of the present utility model, each of the battery cells 1 has an explosion-proof valve 11, and the explosion-proof valve 11 is provided at one side surface in the height direction of each of the battery cells 1. Thereby, a space is provided for arrangement of the PCB board 2 and the adapter 3, and space utilization of the battery module 100 is improved.

Preferably, the explosion-proof valve 11 is provided at the bottom surface of the battery cell 1.

In some embodiments of the present utility model, the battery module 100 further includes: the tray 5, tray 5 locates the lower part of a plurality of battery monomer 1 for bear battery monomer 1. Preferably, the tray 5 is made of plastic insulation, and the tray 5 is formed with a first connection hole 51.

In some embodiments of the present utility model, the battery module 100 further includes: cover plates 6, the cover plates 6 cover both ends of the battery cells 1 in the length direction, and the cover plates 6 are connected to the tray 5. Specifically, the cover plate 6 is formed with a second connection hole 61, and the cover plate 6 and the tray 5 are mounted and fixed through the first connection hole 51 and the second connection hole 61 by fasteners. Therefore, the safety protection isolation of the battery module 100 is realized, and the safety coefficient of the battery module 100 is improved.

The battery module 100 according to two embodiments of the present utility model will be described below with reference to fig. 1 to 8.

In a first embodiment of the present utility model,

specifically, as shown in fig. 1, the explosion-proof valve 11 is disposed on the bottom surface of the battery cell 1, the positive and negative poles 12 of two adjacent battery cells 1 are alternately disposed, when the battery pack case is charged, the PCB board 2 is disposed at one end of the battery cell 1 in the length direction, the FFC or FPC extends from one end of the battery cell 1 in the length direction to the other end, one end of the FFC or FPC is connected with the pole 12, the other end of the FFC or FPC is connected with the lower jack of the communication connector 21 on the PCB board 2, and the upper jack of the communication connector 21 is used for connecting with the FFC or FPC between the adapter pieces 3.

In the second embodiment, as shown in fig. 5, when the battery pack housing is neutral, the FPC is welded to the cover plate 6 of the battery module 100, and is transferred to the PCB 2 through the nickel plate, and the FPC is provided with a plurality of sections of safety narrow paths, so that the battery pack can be effectively and safely disconnected when a high-voltage sampling short circuit occurs, arc discharge is avoided, and the safety performance of the battery module 100 is improved. The tray 5 is formed with a first connection hole 51, the cover plate 6 is formed with a second connection hole 61, and the cover plate 6 and the tray 5 are fixed by fastening members penetrating through the first connection hole 51 and the second connection hole 61.

The battery pack according to the embodiment of the second aspect of the present utility model includes the battery module 100 according to the embodiment of the first aspect of the present utility model.

According to the battery pack of the embodiment of the utility model, by arranging the battery module 100 of the embodiment of the first aspect, the space utilization rate of the battery pack is improved, the volume of the battery pack is reduced, and the production cost of the battery pack is reduced.

A vehicle according to an embodiment of a third aspect of the present utility model includes a battery pack according to the embodiment of the above second aspect of the present utility model.

According to the vehicle provided by the embodiment of the utility model, the battery pack of the second aspect is arranged, so that the safety performance of the vehicle is improved, the production cost of the vehicle is reduced, and the assembly space of the battery pack is reduced.

In the description of the present utility model, it should 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", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

the plurality of battery cells are arranged in the width direction of the battery cells, and the polar post of each battery cell is positioned at two ends of the battery cell in the length direction;

the PCB extends along the length direction of the battery cell, and is arranged at one end of the battery cell in the length direction;

the adaptor is extended from one end of the battery cell to the other end in the length direction, one end of the adaptor is connected with the pole, and the other end of the adaptor is connected with the PCB.

2. The battery module according to claim 1, wherein a communication connector is provided on the PCB board, and the other end of the adapter is connected to the communication connector.

3. The battery module according to claim 2, further comprising: the aluminum bar assembly comprises a plurality of aluminum bar connecting pieces, wherein each aluminum bar connecting piece is connected between every two adjacent battery monomer poles, and one end of each adapter piece is connected with each aluminum bar connecting piece.

4. The battery module of claim 3, wherein the PCB board is connected to the aluminum bar connecting member through a collecting member.

5. The battery module of claim 4, wherein the adapter is provided with a bumper strip having a plurality of bumper strips formed thereon.

6. The battery module according to any one of claims 1 to 5, wherein each of the battery cells has an explosion-proof valve provided at one side surface in a height direction of each of the battery cells.

7. The battery module according to any one of claims 1 to 5, further comprising: the tray is arranged at the lower parts of the battery monomers and used for bearing the battery monomers.

8. The battery module of claim 7, further comprising: and the cover plate covers the two ends of the battery cells in the length direction, and is connected with the tray.

9. A battery pack comprising the battery module according to any one of claims 1 to 8.

10. A vehicle comprising the battery pack according to claim 9.