CN214957130U

CN214957130U - Module shell, battery module, battery package and vehicle

Info

Publication number: CN214957130U
Application number: CN202022913616.1U
Authority: CN
Inventors: 林水杉; 卢耀智; 郭继鹏
Original assignee: Shanghai Cenat New Energy Co Ltd
Current assignee: Shanghai Cenat New Energy Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-11-30
Anticipated expiration: 2030-12-07

Abstract

The utility model relates to the technical field of batteries, a module shell, battery module, battery package and vehicle is provided, the module shell includes the bottom plate, the upper cover plate that sets up relatively with the bottom plate, locate two curb plates of bottom plate both sides respectively and locate two end plates at bottom plate both ends respectively, the bottom plate, the upper cover plate, two curb plates and two end plates enclose to close and form the holding cavity that is used for holding electric core, the upper cover plate has the portion of bending, the portion of bending is in same end with the end plate, and, the portion of bending is buckled towards the bottom plate direction and is connected with the end plate. The module housing has high structural strength under the condition of low cost.

Description

Module shell, battery module, battery package and vehicle

Technical Field

The utility model relates to a battery technology field especially relates to a module shell, battery module, battery package and vehicle.

Background

The battery module includes the module shell usually and sets up in the inside a plurality of electricity core of module shell, and the module shell usually includes bottom plate, upper cover plate, two curb plates and two end plates.

In the prior art, the end plate of the module housing is usually made of die casting or aluminum extruded profile, but the module housing has the following defects: 1) when the end plate is made of die castings, the manufacturing cost is high, and the material performance is weak; 2) when the end plate adopts extruded aluminum profile, the cost is relatively low, but the end plate is difficult to be welded with the upper cover plate, so that the whole stress of the module shell structure is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a module shell to the end plate low in manufacturing cost of module shell and the structural strength high difficult technical problem that coexists of module shell among the solution prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a module shell, including the bottom plate, with the relative upper cover plate that sets up of bottom plate, locate two curb plates of bottom plate both sides respectively and locate two end plates at bottom plate both ends respectively, bottom plate, upper cover plate, two curb plates and two end plates enclose to close and form the holding cavity that is used for holding electric core, the upper cover plate has the portion of bending, the portion of bending is in same end with the end plate, just, the portion of bending is buckled towards the bottom plate direction and is connected with the end plate.

In one embodiment, the end plate is a profile structure end plate.

The utility model discloses in foretell technical scheme, following technological effect or advantage have at least: the utility model provides a module shell, end plate can be the section bar structure end plate, and its manufacturing cost is lower, and the upper cover plate has the portion of bending that is in same end with the end plate simultaneously, and the portion of bending is buckled towards the bottom plate direction and is connected with the end plate, makes the upper cover plate be connected as an organic wholely with the end plate, can effectively improve the structural strength of module shell to realized having had under the condition of lower cost, the module shell has higher structural strength, thereby improved the structural strength and the security of battery module.

In one embodiment, the bent portion is welded to the end plate.

Through adopting above-mentioned technical scheme, can make the portion of bending fixed firm mutually with the end plate to improve the joint strength between upper cover plate and the end plate, and then guarantee the structural strength of module shell.

In one embodiment, the upper cover plate has an electrode lead-out notch formed between an end portion of the upper cover plate and the bent portion.

By adopting the technical scheme, the positive electrode and the negative electrode of the battery module are favorably led out from the electrode leading-out notch at the end part of the upper cover plate, and the upper cover plate is not hindered from being connected with the end plate through the bending part.

In one embodiment, the bending part is provided with a bending corner part, and a reinforcing rib is arranged at the bending corner part.

Through adopting above-mentioned technical scheme, the setting of strengthening rib can be strengthened the bight department of buckling of bending to improve the structural strength and the stability of the portion of bending, and then guarantee the structural strength of module shell.

In one embodiment, the bending part comprises: one end of the transverse section is connected with the upper cover plate; and one end of the longitudinal section is connected with the other end of the transverse section, an included angle is formed between the longitudinal section and the transverse section, and the other end of the longitudinal section is connected with the end plate.

Through adopting above-mentioned technical scheme, do benefit to horizontal section and extend along upper cover plate place plane, and vertical section is in end plate place plane, and the shape is regular, can more laminate in the electric core of battery module.

In one embodiment, the module case further comprises a reinforcement member connected to at least two of the bent portion, the end plate, and the bottom plate at the same time.

Through adopting above-mentioned technical scheme, the reinforcement can improve the joint strength between portion of bending, end plate and the bottom plate, guarantees the structural strength of module shell.

In one embodiment, the reinforcement is an elongated reinforcement that extends through the bends, the end plates, and the base plate.

Through adopting above-mentioned technical scheme, adopt rectangular form reinforcement to run through portion of bending, end plate and bottom plate and connect, not only can support the portion of bending to further improve the joint strength between portion of bending, end plate and the bottom plate, guarantee battery module's structural strength.

In one embodiment, the end plate is provided with a rib portion, the rib portion is located on a surface of the end plate close to the accommodating cavity, the rib portion is arranged along the direction from the bottom plate to the upper cover plate, and the strip-shaped reinforcing member penetrates through the bending portion, the rib portion and the bottom plate.

Through adopting above-mentioned technical scheme, rectangular form reinforcement passes through the rib portion to be connected with the end plate, does benefit to the end plate and sets up thinner size, and rectangular form reinforcement connects in portion of bending, rib portion and bottom plate in the holding cavity, and occupation space is little, and is little to the outside interference.

Another object of the utility model is to provide a battery module, battery module includes: the module housing of any of the above embodiments; and a plurality of electricity core, electricity core all set up in the holding cavity of module shell.

The utility model discloses foretell technical scheme owing to adopted foretell module shell, can improve the structural strength of module shell under the condition that has lower cost to improve the structural strength and the security of battery module, reduce battery module cost.

Still another object of the present invention is to provide a battery pack, which includes the above battery module.

The utility model discloses foretell technical scheme, owing to adopted foretell battery module, module shell cost is lower relatively and have higher structural strength, and then can reduce the cost of battery package, improves the quality of battery package.

It is yet another object of the present invention to provide a vehicle including the above battery pack.

The utility model discloses foretell technical scheme owing to adopted foretell battery package, the battery package has higher structural strength under the condition that has relatively low cost, can improve the quality of vehicle.

Drawings

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

Fig. 1 is a schematic structural diagram of a module housing according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a second schematic structural diagram of a module housing according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an upper cover plate according to an embodiment of the present invention when the upper cover plate is connected to an end plate;

fig. 5 is a schematic cross-sectional view of a module housing according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a battery module according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100. a module housing; 10. a base plate; 20. an upper cover plate; 30. a side plate; 40. an end plate; 21. a bending part; 201. an electrode lead-out notch; 210. bending the corner part; 2101. reinforcing ribs; 211. a transverse segment; 212. a longitudinal segment; 50. a reinforcement; 401. a rib part; 1000. a battery module is provided.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely 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 construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 3, an embodiment of the present invention provides a module housing 100 for a battery module, where the module housing 100 is used to accommodate a battery cell and protect the battery cell. Module shell 100 includes bottom plate 10, the upper cover plate 20 that sets up relatively with bottom plate 10, locate two curb plates 30 of bottom plate 10 both sides and relative setting respectively and locate two end plates 40 of bottom plate 10 both ends and relative setting respectively, bottom plate 10, upper cover plate 20, two curb plates 30 and two end plates 40 enclose to close and form the holding cavity that is used for holding electric core, wherein, bottom plate 10 is corresponding to electric core bottom, upper cover plate 20 is corresponding to electric core top, both sides board 30 is corresponding to electric core both sides portion, both end plates 40 are corresponding to electric core both ends. It is understood that the side plate 30 may be detachably connected or fixedly connected to the bottom plate 10, or may be integrally formed with the bottom plate 10 (for example, the side plate 30 and the bottom plate 10 form a structural member with an L-shaped or U-shaped cross section), the side plate 30 may be detachably connected or fixedly connected to the upper cover plate 20, or may be integrally formed with the upper cover plate 20 (for example, the side plate 30 and the upper cover plate 20 form a structural member with an L-shaped or inverted U-shaped cross section); the end plate 40 may be connected to only the side plate 30, only the bottom plate 10, or both the side plate 30 and the bottom plate 10; the side plates 30 and the bottom plate 10 can be a single plate body or formed by splicing a plurality of plate bodies; the bottom plate 10, the upper cover plate 20, the two side plates 30, and the two end plates 40 may be connected in a matching manner to form an accommodating cavity for accommodating the battery cell, which is not limited herein. The end plate 40 may be a profile structure end plate, such as an aluminum extruded profile structural member, a steel profile structural member, an alloy profile structural member, but is not limited thereto, and in this embodiment, an aluminum extruded profile structural member is preferred, which has a light weight and a low manufacturing cost; the upper cover plate 20 has a bent portion 21, the bent portion 21 and the end plate 40 are located at the same end, and the bent portion 21 is bent toward the bottom plate 10 and connected to the end plate 40, wherein the bent portion 21 may be integrally formed with the upper cover plate 20, for example, the end portion of the upper cover plate 20 is bent when the upper cover plate 20 is a sheet metal part, or may be separately formed and fixedly connected to the upper cover plate 20. Wherein, the two end plates 40 may be both end plates with a sectional material structure, and both ends of the upper cover plate 20 are respectively provided with a bending portion 21 to be respectively connected with one end plate 40.

The embodiment of the utility model provides a module shell 100, because end plate 40 can be the section bar structure end plate, its manufacturing cost is lower, upper cover plate 20 has the portion 21 of bending that is in same end with end plate 40 simultaneously, and the portion 21 of bending is buckled and is connected with the section bar structure end plate towards bottom plate 10 direction, it is as an organic whole to make upper cover plate 20 be connected with end plate 40, can effectively improve module shell 100's structural strength, thereby realized making module shell 100 have relatively higher structural strength under the condition that has lower cost, thereby improve battery module's structural strength and security.

In one embodiment, referring to fig. 1 and 2, the bent portion 21 is welded to the end plate 40. So set up, can make the portion of bending 21 and end plate 40 fixed firm mutually to improve the joint strength between upper cover plate 20 and the end plate, and then guarantee the structural strength of module shell. Specifically, the edge of the bent portion 21 away from the upper cover plate 20 may be welded to the edge of the end plate 40 close to the upper cover plate 20.

The connection method between the bent portion 21 and the end plate 40 is not limited to this, and alternatively, the bent portion 21 and the end plate 40 may be connected by a screw, a bolt, a connecting plate, or may be in a snap-fit connection.

In one embodiment, referring to fig. 2 and 6, the upper cover plate 20 has an electrode lead-out notch 201, and the electrode lead-out notch 201 is formed between the end of the upper cover plate 20 and the bending portion 21. With this arrangement, the positive electrode and the negative electrode of the battery module can be easily led out from the electrode lead-out notch 201 at the end of the upper cover plate 20 without hindering the connection of the upper cover plate with the end plate 40 through the bent portion 21.

Further, in an embodiment, referring to fig. 2 and fig. 6, the number of the electrode lead-out notches 201 is two, and the two electrode lead-out notches 201 are respectively located at two sides of the bending portion 21, so as to facilitate leading out the positive electrode and the negative electrode of the battery module respectively at the same end of the upper cover plate 20.

In one embodiment, referring to fig. 2, the bending portion 21 has a bending corner portion 210, the bending corner portion 210 is formed at the bending position of the bending portion 21, a reinforcing rib 2101 is disposed at the bending corner portion 210, and the reinforcing rib 2101 may be one or more. So set up, strengthening rib 2101 can be strengthened the corner portion 210 department of buckling of bending 21 to improve the structural strength and the stability of bending 21, and then guarantee the structural strength of module shell 100.

Specifically, referring to fig. 2 and fig. 4, a concave position may be punched at the arched position of the bending corner portion 210, so as to form a reinforcing rib 2101 corresponding to the concave position at the concave position corresponding to the arched position of the bending corner portion 210, or the reinforcing rib 2101 may be directly welded at the concave position of the bending corner portion 210, but is not limited thereto.

In one embodiment, referring to fig. 2, the bending portion 21 includes a transverse section 211 and a longitudinal section 212, one end of the transverse section 211 is connected to the upper cover plate 20, one end of the longitudinal section 212 is connected to the other end of the transverse section 211, an included angle is formed between the longitudinal section 212 and the transverse section 211, the included angle may be substantially 90 °, and of course, other angles are also possible, the other end of the longitudinal section 212 is connected to the end plate 40, wherein the transverse section 211 and the longitudinal section 212 may be integrally formed. So set up, do benefit to horizontal section 211 along the extension of upper cover plate 20 place plane, and vertical section 212 is in end plate place plane, do benefit to and form the right angle, the shape is regular, can more laminate in the electric core of battery module, it is little to occupy the exterior space. The joint of the transverse section 211 and the longitudinal section 212 is the bending corner 210, and the reinforcing rib 2101 is arranged at the joint of the transverse section 211 and the longitudinal section 212.

In one embodiment, referring to fig. 4 and 5, the module housing 100 further includes a reinforcing member 50, the reinforcing member 50 is connected to at least two of the bending portion 21, the end plate 40 and the bottom plate 10, that is, only connected to the bending portion 21 and the end plate 40 at the same time, only connected to the bending portion 21 and the bottom plate 10 at the same time, only connected to the end plate 40 and the bottom plate 10 at the same time, or connected to the bending portion 21, the end plate 40 and the bottom plate 10 at the same time; the reinforcing member 50 may be a steel nail, a steel pin, a steel column, a rivet, or the like to penetrate at least two of the bent portion 21, the end plate 40, and the bottom plate 10, or may be a fixing plate, a fixing strip, a fixing sheet, or the like to be fixedly connected to at least two of the bent portion 21, the end plate 40, and the bottom plate 10, but is not limited thereto. With such an arrangement, the reinforcing member 50 can improve the connection strength between the bent portion 21, the end plate 40, and the bottom plate 10, and ensure the structural strength of the module housing 100.

Further, in an embodiment, referring to fig. 4 and 5, the stiffener 50 is an elongated stiffener 50, such as a steel nail, a steel pin, a steel column, a rivet, etc., but not limited thereto, the elongated stiffener 50 penetrates through the bending portion 21, the end plate 40, and the bottom plate 10, and specifically, when the elongated stiffener 50 is a steel pin or a rivet, the elongated stiffener 50 is riveted with the bottom plate 10 after penetrating through the bending portion 21, the end plate 40, and the bottom plate 10, and of course, the elongated stiffener 50 may also be riveted with the bending portion 21, wherein the bending portion 21, the end plate 40, and the bottom plate 10 may be respectively provided with through holes for the elongated stiffener 50 to pass through, and the elongated stiffener 50 may be disposed along a direction from the upper cover plate 20 toward the bottom plate 10 or a direction from the bottom plate 10 toward the upper cover plate 20. So set up, adopt rectangular form reinforcement to run through portion 21 of bending, end plate 40 and bottom plate 10 and realize the reinforced connection between portion 21 of bending, end plate 40 and the bottom plate 10, not only can support the portion 21 of bending, improve its load-carrying capacity to can further improve the joint strength between portion 21 of bending, end plate 40 and the bottom plate 10, and then improve the structural strength of module shell 100, guarantee the structural strength of battery module.

Specifically, referring to fig. 4 and 5, the elongated reinforcing member penetrates through the transverse section 211 of the bending portion 21, the end plate 40 and the bottom plate 10, but of course, the elongated reinforcing member may also penetrate through the longitudinal section 212 of the bending portion 21, the end plate 40 and the bottom plate 10, or through the transverse section 211 of the bending portion 21, the longitudinal section 212, the end plate 40 and the bottom plate 10.

Further, in an embodiment, referring to fig. 4 and fig. 5, a rib portion 401 is disposed on the end plate 40, the rib portion 401 may be integrally formed with the end plate 40, the rib portion 401 is located on the end plate 40 near a surface of the receiving cavity, the rib portion 401 is disposed along the bottom plate 10 toward the upper cover plate 20, and the elongated stiffener 50 penetrates through the bending portion 21, the rib portion 401 and the bottom plate 10. So set up, rectangular form reinforcement passes through rib portion 401 and is connected with end plate 40, is not only convenient for long form reinforcement and the end plate 40 between be connected, and does benefit to end plate 40 and set up thinner size, and rectangular form reinforcement connects in portion 21 of bending, rib portion 401 and bottom plate 10 in the holding cavity, and occupation space is little, and is little to the outside interference. One or more of the ribs 401 may be provided, preferably at least two of the ribs are provided in this embodiment to enhance the reinforcing effect, and the ribs 401 may be provided in parallel with each other.

Referring to fig. 6, an embodiment of the present invention further provides a battery module 1000, where the battery module includes the module housing 100 and a plurality of battery cells of any of the above embodiments, and the battery cells are all disposed in the accommodating cavity of the module housing 100.

Because the embodiment of the utility model provides an adopted foretell module shell 100, therefore its technical effect that the technical scheme who has above-mentioned module shell 100 equally brought can improve module shell 100's structural strength under the condition that has lower cost to improve battery module 1000's structural strength and security, reduce battery module 1000 cost.

The embodiment of the utility model provides a still provide a battery package, battery package includes foretell battery module 1000. The battery pack may further include a case in which the battery module 1000 is disposed.

Because the embodiment of the utility model provides an adopted foretell battery module 1000, therefore its technical effect that the technical scheme who has above-mentioned module shell 100 equally brought, module shell 100 cost is lower relatively and have higher structural strength, and then can reduce the cost of battery package, improves the quality of battery package.

The embodiment of the utility model provides a still provide a vehicle, the vehicle includes foretell battery package.

Because the embodiment of the utility model provides an adopted foretell battery package, therefore it has the technological effect that the technical scheme of above-mentioned module shell 100 brought equally, and the battery package has higher structural strength under the condition that has relatively lower cost, can improve the quality of vehicle.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a module shell, include the bottom plate, with the relative upper cover plate that sets up of bottom plate, locate respectively two curb plates of bottom plate both sides and locate respectively two end plates at bottom plate both ends, the bottom plate the upper cover plate, two curb plate and two the end plate encloses to close and forms the holding cavity that is used for holding electric core, its characterized in that: the upper cover plate is provided with a bending part, the bending part and the end plate are positioned at the same end, and the bending part bends towards the direction of the bottom plate and is connected with the end plate.

2. The module housing of claim 1, wherein: the bending part is welded with the end plate.

3. The module housing of claim 1, wherein: the upper cover plate is provided with an electrode leading-out notch, and the electrode leading-out notch is formed between the end part of the upper cover plate and the bending part.

4. The module housing of claim 1, wherein: the bending part is provided with a bending corner part, and a reinforcing rib is arranged at the bending corner part.

5. The module housing of claim 1, wherein the bend comprises:

one end of the transverse section is connected to the upper cover plate; and

the end plate is connected with the end plate, and an included angle is formed between the longitudinal section and the transverse section.

6. The module housing according to any one of claims 1 to 5, wherein: the module shell further comprises a reinforcing piece, and the reinforcing piece is connected to at least two of the bending part, the end plate and the bottom plate.

7. The module housing of claim 6, wherein: the reinforcing piece is a long strip-shaped reinforcing piece, and the long strip-shaped reinforcing piece penetrates through the bending part, the end plate and the bottom plate.

8. The module housing of claim 7, wherein: the end plate is provided with a convex rib part, the convex rib part is positioned on the end plate and close to one surface of the containing cavity, the convex rib part is arranged along the direction of the upper cover plate from the bottom plate, and the long strip-shaped reinforcing piece penetrates through the bending part, the convex rib part and the bottom plate.

9. The utility model provides a battery module which characterized in that, battery module includes:

the module housing of any one of claims 1 to 8; and

a plurality of electricity core, the electricity core all set up in the holding cavity of module shell.

10. A battery pack, comprising: comprising the battery module according to claim 9.

11. A vehicle, characterized in that: comprising the battery pack according to claim 10.