CN219873888U - Module splint, battery module and electric motor car - Google Patents

Abstract

The embodiment of the utility model provides a module clamping plate, a battery module and an electric vehicle, and relates to the technical field of battery cell protection. The module clamping plate comprises a clamping plate body and a protection sheet, wherein the clamping plate body is arranged above and below the battery cell; the protection piece is connected with the splint body to the protection piece is used for covering the explosion-proof valve of electric core. The module clamping plate can protect the explosion-proof valve of the battery core and avoid damaging the explosion-proof valve in the production turnover process.

Description

Module splint, battery module and electric motor car

Technical Field

The utility model relates to the technical field of battery cell protection, in particular to a module clamping plate, a battery module and an electric vehicle.

Background

In the production assembly process of the lithium battery module, the traditional module clamping plate design needs to expose the battery core explosion-proof valve, and the lithium battery module aims to prevent the battery core from being fried open in the middle and short-circuited with the adjacent battery core by discharging internal gas through the end surface explosion-proof valve when the battery core is abnormal.

However, since the explosion-proof valve of the battery cell is exposed, the explosion-proof valve is easily damaged in the production turnover process, so that the leakage risk occurs and the battery cell needs to be replaced.

Disclosure of Invention

The utility model aims to provide a module clamping plate, a battery module and an electric vehicle, which can protect an explosion-proof valve of a battery core and avoid damaging the explosion-proof valve in the production turnover process.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides a modular cleat comprising:

the clamping plate body is used for being arranged above and below the battery cell; and

the protection piece, the protection piece with splint body coupling, the protection piece is used for covering the explosion-proof valve of electric core.

In an alternative embodiment, the protection sheet extends towards the direction of the clamping plate body to form a first protrusion, and the first protrusion is connected with the clamping plate body.

In an alternative embodiment, the number of the first protrusions is a plurality, a plurality of the first protrusions are arranged at intervals, and a plurality of the first protrusions are respectively connected with the splint body.

In an alternative embodiment, the first protrusion is a rectangular protrusion.

In an alternative embodiment, the clamping plate body extends towards the protection sheet to form a second protrusion, and the second protrusion is connected with the protection sheet.

In an alternative embodiment, the number of the second protrusions is a plurality, a plurality of the second protrusions are arranged at intervals, and a plurality of the second protrusions are respectively connected with the protection sheet.

In an alternative embodiment, the second protrusion is a rectangular protrusion.

In an alternative embodiment, the protective sheet is a semicircular protective sheet.

In a second aspect, the present utility model provides a battery module, including an electric core and the module clamping plate according to any one of the foregoing embodiments, the clamping plate body is disposed above and below the electric core, and the protection sheet is used for covering an explosion-proof valve of the electric core.

In a third aspect, the present utility model provides an electric vehicle, including the battery module according to the foregoing embodiment.

The beneficial effects of the embodiment of the utility model include:

the module clamping plate comprises a clamping plate body and a protection sheet, wherein the clamping plate body is arranged above and below the battery cell and plays a role in fixing and protecting the battery cell; the protection piece is connected with the splint body to the protection piece is used for covering the explosion-proof valve of electric core, consequently, the explosion-proof valve can be protected through the cover of protection piece, has avoided the explosion-proof valve of the damage electric core of production turnover in-process.

The battery module comprises the module clamping plate and a battery cell, wherein the clamping plate body of the module clamping plate is arranged above and below the battery cell to fix and protect the battery cell; the protection piece of module splint is used for covering the explosion-proof valve of electricity core, consequently, explosion-proof valve can be protected through the cover of protection piece, has avoided the explosion-proof valve of the damage electricity core of production turnover in-process.

The electric vehicle comprises the battery module, and has all the beneficial effects of the battery module.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electric vehicle according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a battery module according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a battery cell according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a module clamping plate according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion at A in FIG. 4;

fig. 6 is a schematic diagram of the protection sheet in fig. 5 after being sprayed by a battery cell explosion.

Icon: 1000-an electric vehicle; 1100-battery pack; 100-battery module; 10-module clamping plates; 11-a splint body; 111-second protrusions; 12-a protective sheet; 121-a first bump; 20-an electric core; 21-explosion-proof valve; 22-pole; 1200-vehicle body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As described in the background art, in the process of manufacturing and assembling a lithium battery module, the traditional module clamping plate design needs to expose the battery core explosion-proof valve, and the purpose is that when the battery core is abnormal, internal gas is discharged through the end surface explosion-proof valve, so that the battery core is prevented from being fried open in the middle and being short-circuited with an adjacent battery core. However, since the explosion-proof valve of the battery cell is exposed, the explosion-proof valve is easily damaged in the production turnover process, so that the leakage risk occurs and the battery cell needs to be replaced.

Based on this, referring to fig. 1-6, an embodiment of the present utility model provides a module clamping plate 10, a battery module 100 and an electric vehicle 1000, which can effectively solve the above-mentioned technical problems, that is, can protect an explosion-proof valve of a battery cell, and avoid damaging the explosion-proof valve in the production turnover process. The module clamping plate 10, the battery module 100, and the electric vehicle 1000 will be described in detail.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electric vehicle 1000 according to the present embodiment, and referring to fig. 1, the electric vehicle 1000 includes a battery module 100 and a vehicle body 1200, and the battery module 100 is mounted on the vehicle body 1200. It will be readily understood by those skilled in the art that a plurality of battery modules 100 may be assembled into one battery pack 1100 by soft connection, and the battery pack 1100 is mounted on the vehicle body 1200, thereby providing the vehicle body 1200 with electric power to perform various functions of the vehicle body 1200.

It should be noted that, in the present embodiment, one battery pack 1100 is formed by six battery modules 100, and in other embodiments or in actual production and assembly, the number of battery modules 100 in the battery pack 1100 needs to be determined according to the design plan of the electric vehicle 1000, for example, the size of the whole vehicle, the size of the battery capacity, the mileage of the vehicle, and the like.

Referring to fig. 2 to 6, the battery module 100 and the module clamping plate 10 will be described in detail.

It should be noted that, when the battery module 100 is placed in a normal manner, the relative positional relationship is clearly known to those skilled in the art.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a battery module 100 according to the present embodiment, and referring to fig. 2, the battery module 100 includes a battery cell 20 and a module clamping plate 10, the module clamping plate 10 is disposed above and below the battery cell 20, and the module clamping plate 10 can fix and protect the battery cell 20.

Likewise, it is easily known to those skilled in the art that the battery module 100 includes a plurality of battery cells 20, and the battery cells 20 are electrically connected in series or parallel.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the battery cell 20 provided in this embodiment, and in conjunction with fig. 2 and fig. 3, the battery cell 20 includes an explosion-proof valve 21 and a pole 22, and as described in the background art, the explosion-proof valve 21 has the following functions: when the cell 20 is abnormal, the internal gas is discharged through the explosion-proof valve 21 on the end surface of the cell 20, so that the cell 20 is prevented from being fried open to generate a short circuit with the adjacent cell 20. The battery cells 20 in the battery module 100 are connected to a bus bar (not shown) through the poles 22, thereby realizing series connection or parallel connection between the battery cells 20.

It is easy to understand that the explosion-proof valve 21 is provided at both the upper and lower end surfaces of the battery cell 20.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a module clamping plate 10 provided in this embodiment, and referring to fig. 3 and fig. 4, the module clamping plate 10 includes a clamping plate body 11 and a protection sheet 12, wherein the clamping plate body 11 is disposed above and below the battery cell 20 to fix and protect the battery cell 20; the protection sheet 12 is connected with the clamping plate body 11, and the protection sheet 12 is used for covering the explosion-proof valve 21 of the battery cell 20, so that the explosion-proof valve 21 can be protected through the covering of the protection sheet 12, and the explosion-proof valve 21 of the battery cell 20 is prevented from being damaged in the production turnover process.

It should be noted that, since the battery module 100 includes a plurality of battery cells 20, the number of the protection sheets 12 is also plural, and the protection sheets 12 are respectively connected with the clamping plate body 11, and each protection sheet 12 corresponds to each explosion-proof valve 21 of each battery cell 20 one by one and covers the explosion-proof valve 21, thereby protecting the explosion-proof valve 21 from being damaged.

Further, when the battery cell 20 in the battery module 100 is abnormal and explosion occurs, since the protection sheet 12 covers the explosion-proof valve 21, the protection sheet 12 needs to be punched out to not affect the normal function of the explosion-proof valve 21 (release the gas inside the battery cell 20), therefore, in order to make the protection sheet 12 easily punched out by the explosion-proof gas pressure generated by the battery cell 20, please refer to fig. 5, fig. 5 is a partial enlarged view at a in fig. 4, in combination with fig. 5, the protection sheet 12 extends toward the direction of the clamping plate body 11 to form the first protrusion 121, the clamping plate body 11 extends toward the direction of the protection sheet 12 to form the second protrusion 111, the first protrusion 121 is connected with the second protrusion 111, therefore, the protection sheet 12 is connected with the clamping plate body 11 through the protrusions of both, the connection strength of the first protrusion 121 and the second protrusion 111 is smaller, so that the protection sheet 12 is easily punched out to not affect the function of the explosion-proof valve 21.

It is easy for those skilled in the art to know that when the battery cell 20 is exploded, the explosion pressure is typically 2.5MPa (equivalent to 25kg force), so in this embodiment, the connection tolerance of the first protrusion 121 and the second protrusion 111 is set to 1kg, and since 1kg is far less than 25kg, the protection sheet 12 is easily punched out, specifically, referring to fig. 6, fig. 6 is a schematic diagram of the protection sheet 12 in fig. 5 after being exploded out by the battery cell 20.

In other embodiments, the setting of the connection tolerance of the first protrusion 121 and the second protrusion 111 is not limited, as long as the tolerance is less than 25kg, and the protection sheet 12 can be punched out.

Please continue to combine fig. 5, if only connect with the second protrusion 111 through a first protrusion 121, in the process of production turnover, the protection sheet 12 is easy to shake, and the explosion-proof valve 21 cannot be better protected, so in this embodiment, the number of the first protrusions 121 is multiple, the number of the second protrusions 111 is also multiple, the first protrusions 121 and the second protrusions 111 are all arranged at intervals, and are respectively connected with each other, so that the stability of the protection sheet 12 can be effectively improved, and the connection tolerance of each first protrusion 121 and the second protrusion 111 is 1kg, so that the protection sheet 12 cannot be influenced.

Specifically, in the present embodiment, three first protrusions 121 and three second protrusions 111 are provided and distributed in a triangular arrangement, with a certain stability, although in other embodiments, the number of the first protrusions 121 and the second protrusions 111 is not limited as long as the protection sheet 12 is not easily shaken and easily punched out.

Further, in this embodiment, the shapes of the first protrusion 121 and the second protrusion 111 are rectangular, the rectangular first protrusion 121 and the rectangular second protrusion 111 can be better connected, and are relatively thin and narrow, and have smaller connection strength, so that the first protrusion 121 and the second protrusion 111 can be easily punched out, however, in other embodiments, the shapes of the first protrusion 121 and the second protrusion 111 can be circular, triangular, trapezoid, and the like, so that the function of the protection sheet 12 can be realized.

It should be noted that, in the present embodiment, the first protrusion 121 is connected to the second protrusion 111, so that the protection sheet 12 can be connected to the cleat body 11, it is easy to understand that, in other embodiments, only the first protrusion 121 may be provided, and the protection sheet is connected to the cleat body 11 through the first protrusion 121; or only the second protrusion 111 is provided, and the second protrusion 111 is connected with the protection sheet 12, so that the normal protection and easy flushing effect of the protection sheet 12 are not affected.

Further, the protection sheet 12 and the clamping plate body 11 are connected into an integrated structure, and can be directly realized through a die, so that the assembly with the battery cell 20 is convenient, and the production efficiency is improved.

In this embodiment, since the battery cell 20 is a cylindrical battery cell 20, and the post 22 of the battery cell 20 needs to be connected to the busbar, the shape of the protection sheet 12 is semicircular, however, in other embodiments, the protection sheet 12 may be rectangular, circular, triangular, etc., and it is easy to understand that, in order to better cover the protection explosion-proof valve 21 and be easily punched out, the shape of the protection sheet 12 may be adjusted and determined according to the shape of the battery cell 20, the shape of the explosion-proof valve 21, or the shape of the clamping plate body 11.

In addition, in the present embodiment, the protection sheet 12 is made of ABS plastic, and the insulation safety inside the battery module 100 is not affected after the protection sheet is detached, however, in other embodiments, the insulation effect can be achieved without limiting the material of the protection sheet 12, and the battery module 100 can be normally operated.

In summary, the embodiment of the utility model provides a module clamping plate 10, the module clamping plate 10 includes a clamping plate body 11 and a protection sheet 12, the clamping plate body 11 is disposed above and below the battery cell 20, and functions of fixing and protecting the battery cell 20; the protection sheet 12 is connected with the clamping plate body 11, and the protection sheet 12 is used for covering the explosion-proof valve 21 of the battery cell 20, so that the explosion-proof valve 21 can be protected through the covering of the protection sheet 12, and the explosion-proof valve 21 of the battery cell 20 is prevented from being damaged in the production turnover process. The first protrusions 121 of the protection sheet 12 are connected with the second protrusions 111 of the clamping plate body 11, the first protrusions 121 and the second protrusions 111 are arranged at intervals, the connection bearing force of the first protrusions 121 and the second protrusions 111 is far smaller than the explosion pressure of the battery cell 20, the connection strength is low, the protection sheet 12 is easy to be flushed, and the normal function of the explosion-proof valve 21 (releasing gas inside the battery cell 20) is not affected.

The battery module 100 comprises the module clamping plate 10 and the battery cell 20, wherein the clamping plate body 11 of the module clamping plate 10 is arranged above and below the battery cell 20 to fix and protect the battery cell 20; the protection sheet 12 of the module clamping plate 10 is used for covering the explosion-proof valve 21 of the battery cell 20, so that the explosion-proof valve 21 can be protected through the covering of the protection sheet 12, and the explosion-proof valve 21 of the battery cell 20 is prevented from being damaged in the production turnover process.

The electric vehicle 1000 includes the battery module 100, which has all the functions of the battery module 100.

The above description is only of specific embodiments of the utility model and is not intended to limit the utility model, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A modular cleat, characterized in that the modular cleat (10) comprises:

the battery cell comprises a clamping plate body (11), wherein the clamping plate body (11) is arranged above and below a battery cell (20); and

the protection piece (12), protection piece (12) with splint body (11) are connected, protection piece (12) are used for covering explosion-proof valve (21) of electric core (20).

2. The modular clamping plate according to claim 1, characterized in that the protective sheet (12) extends in the direction of the clamping plate body (11) to form a first protrusion (121), the first protrusion (121) being connected with the clamping plate body (11).

3. The module clamping plate according to claim 2, wherein the number of the first protrusions (121) is plural, the first protrusions (121) are arranged at intervals, and the first protrusions (121) are respectively connected with the clamping plate body (11).

4. A modular cleat according to claim 2, characterized in that the first projection (121) is a rectangular projection.

5. The modular clamping plate according to claim 1, characterized in that the clamping plate body (11) extends in the direction of the protective sheet (12) to form a second protrusion (111), the second protrusion (111) being connected with the protective sheet (12).

6. The module clamping plate according to claim 5, wherein the number of the second protrusions (111) is plural, the second protrusions (111) are arranged at intervals, and the second protrusions (111) are respectively connected with the protection sheet (12).

7. The modular cleat according to claim 5, characterized in that the second projection (111) is a rectangular projection.

8. The modular clamping plate according to claim 1, characterized in that the protective sheet (12) is a semicircular protective sheet (12).

9. A battery module, characterized by comprising a battery cell (20) and the module clamping plate (10) according to any one of claims 1-8, wherein the clamping plate body (11) is arranged above and below the battery cell (20), and the protection sheet (12) is used for covering an explosion-proof valve (21) of the battery cell (20).

10. An electric vehicle characterized by comprising the battery module (100) according to claim 9.