CN213026362U

CN213026362U - Battery module and vehicle

Info

Publication number: CN213026362U
Application number: CN202021476689.2U
Authority: CN
Inventors: 罗明明; 任飞; 孙艳; 崔晓雨; 田旭光; 奉振华; 贾宇坤; 李成强; 邓磊
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-20
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a battery module and vehicle, battery module includes: the output pole assembly comprises an output pole assembly body and a module end plate, wherein a fixing hole is formed in an inner side plate of the module end plate, and the module end plate and the output pole assembly body are fixed through a fastener penetrating through the fixing hole. According to the utility model discloses battery module sets up the fixed orifices on the interior plate of module end plate, fixed orifices department stress is compressive stress to when electric core in battery module produces the inflation, make fastener and the fixed orifices department atress that set up in the fixed orifices be compressive stress, can reduce effectively that the module end plate is provided with the regional production stress concentration of fixed orifices, reduce the risk of module end plate fracture, with the structural strength of reinforcing module end plate, thereby improve battery module's safety in utilization and life.

Description

Battery module and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a battery module and vehicle are related to.

Background

In the related art, as the current social energy crisis is getting more serious, new energy vehicles, especially electric vehicles, are getting more and more social attention.

The battery pack is an important component of the electric vehicle, and the battery module is a core component of the battery pack. Since the emergence of electric vehicles, vehicle fire accidents occur continuously, which has a significant negative effect on the development of electric vehicles and influences the confidence of people in the use of new energy vehicles.

In the battery module, the output pole assembly is mounted on a module end plate of the battery module, and the output pole assembly is used for fixing an output bus bar of the battery module and is suitable for being electrically connected with an external wiring harness. In the use of battery module, the battery module can appear expanding, because the hole that will set up pencil hole and fixed output pole subassembly on the module end plate has reduced the structural strength of module end plate, under the effect of inflation power, leads to module end plate fracture easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a battery module, battery module's structural strength is higher, the safety in utilization is higher, and life is longer.

The utility model further provides a vehicle, the vehicle adopts above-mentioned battery module.

According to the utility model discloses battery module of first aspect embodiment includes: the output pole assembly comprises an output pole assembly body and a module end plate, wherein a fixing hole is formed in an inner side plate of the module end plate, and the module end plate and the output pole assembly body are fixed through a fastener penetrating through the fixing hole.

According to the utility model discloses battery module sets up the fixed orifices on the interior plate of module end plate, fixed orifices department stress is compressive stress to when electric core in battery module produces the inflation, make fastener and the fixed orifices department atress that set up in the fixed orifices be compressive stress, can reduce effectively that the module end plate is provided with the regional production stress concentration of fixed orifices, reduce the risk of module end plate fracture, with the structural strength of reinforcing module end plate, thereby improve battery module's safety in utilization and life.

According to some embodiments of the utility model, the output utmost point subassembly or set up on the module end plate with the dead hole is located the screw hole on the same axis.

In some embodiments, the number of the fixing holes and the threaded holes is multiple.

According to some embodiments of the invention, the output pole assembly comprises: the battery module comprises an output copper bar, a base and a cover plate, wherein the base is fixed with a module end plate of the battery module, and the output copper bar is arranged in the base; the cover plate covers the base.

Furthermore, the base stretches into the one end of module end plate module is provided with first spacing portion and the spacing portion of second, first spacing portion with the spacing portion of second is suitable for respectively in X to upwards with Y to the output pole subassembly carries out spacingly.

Further, the base includes: the side plate comprises a bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate, the second side plate, the third side plate and the fourth side plate are formed on the peripheral side of the bottom plate; wherein the first side plate is close to the inner side plate of the module end plate, the first side plate is provided with the first limiting part, and at least one of the second side plate and the fourth side plate is provided with the second limiting part.

Furthermore, the first limiting part and the second limiting part are both constructed as clamping hooks, one ends of the clamping hooks are connected with the base, and the other ends of the clamping hooks extend towards the module end plate.

Furthermore, the first limit part is multiple.

In some embodiments, the output copper bar is Z-shaped in cross-section and comprises: the battery module comprises a body part, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are located at two ends of the body part and extend away from each other, the first connecting part is connected with a pole of the battery module, the body part is attached to the first side plate, and the second connecting part is fixed on the bottom plate.

According to the utility model discloses vehicle of second aspect embodiment includes: the battery module described in the above embodiments.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a module end plate of a battery module according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of an output electrode assembly of a battery module according to an embodiment of the present invention;

fig. 3 is a front view of an output pole assembly of a battery module according to an embodiment of the present invention;

fig. 4 is a left side view of an output pole assembly of a battery module according to an embodiment of the present invention.

Reference numerals:

the output pole assembly 10, the base 11, the bottom plate 111, the first side plate 112, the second side plate 113, the third side plate 114, the fourth side plate 115, the first position-limiting portion 116, the second position-limiting portion 117, the cover plate 12,

module end plate 20, inner side plate 21, fixing hole 22.

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 only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

At first, can understand, the base is fixed on the module end plate, set up the mounting hole of pencil via hole and base on the module end plate, make the structural strength of module end plate reduce, and then when electric core in the battery module produced the inflation, the bulging force that two fixed orificess that set up on the outer panel of end plate received is tensile stress, the fixed orifices of module end plate is the fracture easily under the effect of tensile stress, the structural strength of module end plate has seriously been reduced, the job stabilization nature and the safety in utilization of battery module have been reduced.

Based on this, this application provides a battery module, can avoid module end plate 20 fracture to appear effectively, prolongs module end plate 20's life, improves battery module's job stabilization nature to improve battery module's safety in utilization.

A battery module and a vehicle according to an embodiment of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1, 2 and 3, a battery module according to an embodiment of the first aspect of the present invention includes: an output pole assembly 10, and a module end plate 20.

The inner side plate 21 of the module end plate 20 is provided with a fixing hole 22, and the module end plate 20 and the output pole assembly 10 are fixed by a fastener passing through the fixing hole 22.

According to the utility model discloses battery module, set up fixed orifices 22 on module end plate 20's interior plate 21, fixed orifices 22 department stress is compressive stress, when producing the inflation with electric core in battery module, make fastener and the fixed orifices 22 department stress that set up in fixed orifices 22 be compressive stress, can reduce effectively that module end plate 20 is provided with the regional stress concentration that produces of fixed orifices 22, reduce the risk that module end plate 20 ftractures, with reinforcing module end plate 20's structural strength, thereby improve battery module's safety in utilization and life.

It should be noted that, what is mentioned in this application is inside and outside consistent with the inside and outside direction of battery module, and the direction towards electric core is inside, and the direction of keeping away from electric core is outside.

According to some embodiments of the present invention, the output pole assembly 10 or the module end plate 20 is provided with a threaded hole on the same axis as the fixing hole 22.

Specifically, the number of the fixing holes 22 and the screw holes is plural. In this way, the fixing of the output pole assembly 10 on the module end plate 20 is realized by the threaded fit of the fastening member and the threaded hole, and the fixing stability of the output pole assembly 10 on the module end plate 20 can be improved by making the number of the fixing holes 22 and the threaded holes plural.

Of course, the connection form of the output pole assembly 10 and the module end plate 20 is not limited to the above-mentioned screw-fit, in other embodiments, the fastening member is configured as a limiting column extending into the fixing hole 22, and the fixing effect consistent with the above-mentioned screw-fit can be achieved by the matching of the limiting column and the output pole assembly 10, so the connection form of the output pole assembly 10 and the module end plate 20 is not specifically limited in this application.

As shown in fig. 2, 3 and 4, according to some embodiments of the present invention, the output pole assembly 10 includes: the battery module comprises an output copper bar, a base 11 and a cover plate 12, wherein the base 11 is fixed with a module end plate 20 of the battery module, and the output copper bar is arranged in the base 11; the cover plate 12 covers the base 11.

Particularly, base 11 and apron 12 inject the accommodation space of output copper bar, the at least part of output copper bar stretches out the accommodation space and stretches into in the battery module in order to be connected with the utmost point post electricity of electric core, the part that the output copper bar is located in the accommodation space is suitable for and is connected with external pencil electricity, it is simpler, convenient to make the electricity between battery module and the boundary member be connected, base 11 fixes in module end plate 20 simultaneously, make the structure of output utmost point subassembly 10 more reasonable, the assembly of battery module is simpler, and is convenient.

As shown in fig. 2 and 3, one end of the base 11 extending into the module end plate 20 is provided with a first limiting portion 116 and a second limiting portion 117, and the first limiting portion 116 and the second limiting portion 117 are respectively adapted to limit the output electrode assembly 10 in the X direction and the Y direction.

Specifically, the base 11 includes: a bottom plate 111, a first side plate 112, a second side plate 113, a third side plate 114, and a fourth side plate 115 formed on the peripheral side of the bottom plate 111; the first side plate 112 is disposed adjacent to the inner side plate 21 of the module end plate 20, and the first side plate 112 is provided with a first limiting portion 116, and at least one of the second side plate 113 and the fourth side plate 115 is provided with a second limiting portion 117.

Thus, the first stopper 116 of the first side plate 112 stops the base 11 in the first direction, and the second stoppers 117 of the second and fourth side plates 115 stop the base 11 in the second direction, thereby improving the fixing effect of the base 11 in the module end plate 20.

It is understood that the first and second limiting

portions

116 and 117 are each configured as a hook, one end of the hook is connected to the base 11, and the other end of the hook extends toward the module end plate 20.

Like this, through the spacing portion 116 that is constructed as the trip, make to have the joint elasticity on the first direction between output utmost point subassembly 10 and the module end plate 20 to make output utmost point subassembly 10 have the trend that leans out on the first direction, and then when the battery module bumps, can offset at least partial bulging force through joint elasticity, with the displacement of reducing output utmost point subassembly 10, module end plate 20 on the first direction, thereby further reduce the risk that module end plate 20 ftractures.

It is understood that the first direction and the second direction are not specifically limited in this application, the first direction may be perpendicular to the second direction or may have an angle, the first direction may be X, Y, Z, and the corresponding second direction is X, Y, Z.

Further, the first position-limiting portion 116 is plural. Therefore, the limiting effect of the first limiting portion 116 on the output electrode assembly 10 can be improved, and the offset capability can be improved, so that the output electrode assembly 10 has better expansion resistance.

In some embodiments, the output copper bar is Z-shaped in cross-section and comprises: the body portion and the first connecting portion and the second connecting portion located at two ends of the body portion and extending away from each other are connected with a pole of the battery module, the body portion is attached to the first side plate 112, and the second connecting portion is fixed on the bottom plate 111. From this, make the structure of output copper bar more reasonable, the space occupies littleer, and switching efficiency is higher.

According to the utility model discloses vehicle of second aspect embodiment includes: the battery module in the above embodiment.

According to the utility model discloses vehicle adopts above-mentioned battery module, and the technological effect who has is unanimous with above-mentioned battery module, no longer gives unnecessary details here.

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

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

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

Claims

1. A battery module, comprising:

an output pole assembly (10);

the module end plate (20), set up fixed orifices (22) on the interior curb plate (21) of module end plate (20), module end plate (20) with output utmost point subassembly (10) are through passing the fastener of fixed orifices (22) is fixed.

2. The battery module according to claim 1, wherein the output pole assembly (10) or the module end plate (20) is provided with a threaded hole which is coaxial with the fixing hole (22).

3. The battery module according to claim 2, wherein the number of the fixing holes (22) and the threaded holes is plural.

4. The battery module according to claim 1, wherein the output pole assembly (10) comprises:

outputting copper bars;

the base (11), the base (11) is fixed with a module end plate (20) of the battery module, and the output copper bar is arranged in the base (11);

a cover plate (12), wherein the cover plate (12) covers the base (11).

5. The battery module according to claim 4, wherein one end of the base (11) extending into the module end plate (20) is provided with a first limiting portion (116) and a second limiting portion (117), and the first limiting portion (116) and the second limiting portion (117) are respectively suitable for limiting the output pole assembly (10) in the X direction and the Y direction.

6. The battery module according to claim 5, wherein the base (11) comprises: a bottom plate (111), a first side plate (112), a second side plate (113), a third side plate (114), and a fourth side plate (115) formed on the periphery side of the bottom plate (111); wherein

The first side plate (112) is close to the inner side plate (21) of the module end plate (20) and is provided with a first limiting portion (116), and at least one of the second side plate (113) and the fourth side plate (115) is provided with a second limiting portion (117).

7. The battery module according to claim 6, wherein the first stopper portion (116) and the second stopper portion (117) are each configured as a hook, one end of which is connected to the base (11), and the other end of which extends toward the module end plate (20).

8. The battery module according to claim 7, wherein the first stopper (116) is a plurality of stoppers.

9. The battery module according to claim 8, wherein the cross-section of the output copper bar is Z-shaped and comprises: the battery module comprises a body part, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are positioned at two ends of the body part and extend away from each other, the first connecting part is connected with a pole of the battery module, the body part is attached to a first side plate (112), and the second connecting part is fixed on a bottom plate (111).

10. A vehicle, characterized by comprising: the battery module according to any one of claims 1 to 9.