CN218548678U

CN218548678U - Boundary beam, frame, battery package and vehicle

Info

Publication number: CN218548678U
Application number: CN202223047779.1U
Authority: CN
Inventors: 解贵华; 薛从文; 王美祥; 李拓
Original assignee: Linkdata New Energy Co Ltd
Current assignee: Linkdata New Energy Co Ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-02-28
Anticipated expiration: 2032-11-16

Abstract

The application discloses an edge beam, a frame, battery package and vehicle, be used for being connected to the consumer with the battery, the edge beam is connected to the consumer through the joining region, the edge beam includes the lateral wall and encloses the die cavity that closes the formation by the lateral wall, the die cavity is cut apart into a plurality of cushion chambers through the strengthening rib, the lateral wall includes function portion and the connecting portion that correspond with the joining region, function portion distributes in connecting portion week side, the thickness of connecting portion is greater than the thickness of function portion, and connecting portion set up the first mounting hole that runs through the edge beam setting along the first direction, this application realizes being connected with the joint through setting up first mounting hole and connecting portion, be different from being connected mounting hole and automobile body threshold roof beam through the bolt in traditional CTC technique, consequently, the first mounting hole quantity in this application is far less than the mounting hole quantity of seting up in traditional CTC technique, and simultaneously, this application is through the thickness of increase and articulate connecting portion, the intensity of edge beam main part has been improved, the more big demand of edge beam intensity has been satisfied because of the mounting hole reduction.

Description

Boundary beam, frame, battery package and vehicle

Technical Field

The application belongs to the technical field of battery packs, and particularly relates to a boundary beam, a frame, a battery pack and a vehicle.

Background

With the development of new energy vehicles, in order to further improve the safety and economy of a battery system, a conventional battery system gradually develops towards a vehicle body bearing structure, a battery upper cover plate is used as the vehicle body bearing structure, and the existing CTC battery integration schemes mainly include two types, namely battery pack chassis integration, integration of a battery pack into a chassis frame, realization of integrated design of a vehicle body floor and a chassis, and battery cell chassis integration, namely welding or gluing of a shell of a battery cell to the chassis structure. In both of the two schemes, a large number of mounting holes are formed in the frame of the battery pack, and the excessive mounting holes reduce the strength of the boundary beam in the frame, so that the reliability of the frame is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a boundary beam, frame, battery package and vehicle, can improve the boundary beam intensity of battery, reinforcing reliability.

In a first aspect, the embodiment of the application provides an edge beam for be connected to consumer with the battery, the edge beam includes the connector joining region, the edge beam passes through the joining region is connected to consumer, the edge beam include the lateral wall and by the lateral wall encloses the die cavity that closes and form, the die cavity is split into a plurality of cushion chambers through the strengthening rib, the lateral wall include function portion and with the connecting portion that the joining region corresponds, the function portion distribute in connecting portion week side, the lateral wall the thickness of connecting portion is greater than the thickness of function portion, just connecting portion have been seted up and have been run through along the first direction a plurality of mounting holes that the edge beam set up.

In some embodiments of the present application, the side wall includes a top plate and a bottom plate opposite to each other in the first direction, the first mounting hole penetrates through the top plate and the bottom plate, the top plate and the bottom plate are disposed in a first region and a second region distributed in a second direction, the connecting portion corresponds to the first region and the outer side plate of the top plate and the bottom plate, the functional portion corresponds to the inner side plate of the bottom plate and the second region connects the top plate and the inner side plate of the bottom plate, and the second direction is perpendicular to the first direction.

In some embodiments of the present application, the second region on the top plate is provided with a plurality of second mounting holes arrayed along a third direction, the third direction being perpendicular to the second direction and the first direction.

In some embodiments of the present application, the reinforcing ribs include at least one first reinforcing rib connecting the inner side plate and the outer side plate and/or at least one second reinforcing rib connecting the top plate and the bottom plate.

In some embodiments of the present application, in the second direction, a distance L1 between the first mounting hole and the inner side plate and a distance L2 between the first mounting hole and the outer side plate satisfy a relationship L1 > L2, wherein a thickness D1 of the second area, a thickness D2 of the first area and the outer side plate, a thickness D3 of the inner side plate, and a thickness D4 of the second reinforcing rib close to the first mounting hole satisfy a relationship 2.5mm ≦ D3 ≦ D4 mm ≦ D1 ≦ D2.

In some embodiments of this application, the boundary beam still includes protruding exhibition portion, set up in on the functional unit and keep away from connecting portion, protruding exhibition portion is inside to be cavity, protruding exhibition portion is in highly being less than on the first direction the height of functional unit.

In some embodiments of the present application, a third reinforcing bead is disposed inside the convex flare.

In a second aspect, embodiments of the present application provide a frame including an edge beam as described in the previous embodiments.

In a third aspect, embodiments of the present application provide a battery pack including a frame as described in the foregoing embodiments.

In a fourth aspect, embodiments of the present application provide a vehicle including a battery pack as described in the above embodiments.

The utility model provides a boundary beam, frame, battery package and vehicle have following beneficial effect at least: this application realizes and articulate through setting up the joint connection district, consequently, the first mounting hole quantity of joint connection district equals with the trompil quantity that connects, compares in the required trompil quantity of the connected mode of boundary beam and middle longeron and car threshold roof beam, this application has reduced the quantity of first mounting hole, and simultaneously, this application is through the thickness of increase with articulate connecting portion, has improved the intensity of boundary beam main part, has satisfied because of the mounting hole reduces the bigger demand to boundary beam intensity.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a battery edge wrapping beam provided in an embodiment of the present application;

fig. 2 is a schematic top view of a battery binder beam according to some embodiments of the present disclosure;

fig. 3 is a schematic top view of a battery binder beam according to further embodiments of the present disclosure;

fig. 4 isbase:Sub>A schematic sectional view taken alongbase:Sub>A-base:Sub>A in fig. 1.

The reference numerals in the detailed description are as follows:

boundary beam 1, connecting portion 2, functional unit 3, strengthening rib 4, first strengthening rib 401, second strengthening rib 402, third strengthening rib 403, cushion chamber 5, first mounting hole 6, first district 7, second district 8, interior plate 9, outer panel 10, protruding exhibition portion 11, second mounting hole 12.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two sets), "plural pieces" refers to two or more (including two pieces).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

At present, the market demand of new energy automobiles at home and abroad is continuously improved, and the vigorous development of the new energy automobile industry is promoted. In the structural design of the battery pack, further pursuit of light weight on the basis of reliability becomes an important pursuit target, the improvement and the upgrade of the structure of the battery pack are promoted, the early packaging form of adopting 'battery core-battery module-battery pack' is developed to the non-module technology (CTP technology), the CTP technology directly forms the battery pack by the battery core, the module is cancelled or the form of adopting a large module is adopted, on the premise that the safety of the battery core is ensured, the CTP technology reduces internal cables and structural members, and the volume energy density and the weight energy density of the whole battery pack are improved. The mounting of the battery pack to the chassis requires a redundant design. Therefore, a battery backplane integration technology (CTC technology) is proposed on the basis of the CTP technology, that is, a technology of directly integrating a battery cell on a chassis.

The inventor of the application notices that the existing CTC battery integration scheme mainly has two types, the first type is battery pack chassis integration, the battery pack is integrated into a chassis frame, the integrated design of a vehicle body floor and a chassis is realized, and the second type is battery single chassis integration, the single shell of the battery is welded or glued and connected onto a chassis structure. In both of the two schemes, a large number of mounting holes are formed in the frame of the battery pack, the strength of the boundary beam in the frame is reduced due to too many mounting holes, the frame is difficult to be guaranteed not to be damaged in the extrusion process, and the mass production links are reduced if the battery pack frame is used for replacing an automobile chassis structure, so that the weight of the automobile body is greatly reduced, and meanwhile, the production cost of the whole automobile end is also reduced.

Based on the consideration, in order to solve the problem that the boundary beam strength is not enough when the battery pack frame is directly connected with the vehicle body anti-collision beam as part of the vehicle body in the prior art, the embodiment of the application provides a battery pack boundary beam, a battery pack frame, a battery pack and a vehicle. The following first describes the battery edge wrapping beam provided in the embodiments of the present application with reference to the drawings.

Referring to fig. 1 to 3, an embodiment of the present application provides an edge beam, which is used for connecting a battery to an electrical device, the edge beam 1 includes a connector connection area, the edge beam 1 is connected to the electrical device through the connection area, the edge beam 1 includes a side wall and a cavity formed by enclosing the side wall, the cavity is divided into a plurality of buffer cavities 5 through a reinforcing rib, the side wall includes a functional portion 3 and a connecting portion 2 corresponding to the connection area, the functional portion 3 is distributed on the periphery of the connecting portion 2, the thickness of the connecting portion 2 of the side wall is greater than that of the functional portion 3, and the connecting portion 2 is provided with a plurality of first mounting holes 6 which penetrate through the edge beam 1 along a first direction.

The edge beam 1 is used as a part of a battery pack frame and a cross beam of an automobile frame, the frame generally comprises longitudinal beams and cross beams, the edge beam type frame comprises two longitudinal beams positioned on two sides and a plurality of cross beams, the longitudinal beams and the cross beams are connected into a firm rigid framework by using a riveting method or a welding method, and the cross beams are used for ensuring the torsional rigidity and the longitudinal load of the frame and supporting other parts on the automobile.

Referring to fig. 1 and 4, the edge beam 1 includes a side wall and a cavity defined by the side wall, the side wall may be but not limited to steel, aluminum alloy, glass fiber reinforced plastic, etc., and the cavity is divided into a plurality of buffer cavities 5 by a reinforcing rib 4 according to specific conditions, wherein the reinforcing rib 4 may be but not limited to an orthogonal rib or an oblique rib, preferably, the reinforcing rib 4 is an orthogonal rib, the edge beam 1 and the reinforcing rib 4 are integrally formed, the reinforcing rib 4 can achieve the purposes of enhancing the strength and rigidity, reducing the weight and reducing the cost of the edge beam 1 under the condition of not increasing the thickness of the side wall, and simultaneously the buffer cavities 5 can provide a buffer effect for the edge beam 1 when the edge beam 1 is impacted from outside, so as to reduce the amount of deformation, the functional parts 3 are distributed on the periphery of the connecting parts 2, the thickness of the connecting parts 2 is greater than the thickness of the functional parts 3, that is, that the cross section of the edge beam 1 is a beam with unequal cross sections, and the strength of the edge beam 1 is improved by increasing the thickness of the connecting parts 2, so that the strength requirement of the automobile body through the joint is met, meanwhile, the connecting part 2 is provided with a plurality of first mounting holes 6 which penetrate through the boundary beam 1 along a first direction, wherein the first direction is the Y direction in figure 3, the first mounting holes 6 are used for mounting connecting sleeves, the connecting sleeves can be fixedly connected with an automobile joint, the automobile joint is connected with an automobile body anti-collision beam, and the aim of using the main body of the boundary beam 1 as a part of the automobile body is fulfilled, wherein the number of the first mounting holes 6 is determined according to the number of open holes on the joint connected with the boundary beam 1, optionally, referring to figure 2, the boundary beam 1 is connected with two joints, the number of the first mounting holes 6 corresponding to one joint is 3, optionally, referring to figure 3 in other embodiments, the boundary beam 1 is connected with two joints, and the number of the first mounting holes 6 corresponding to one joint is 4, compared with the prior art of connecting the mounting holes with the chassis of the vehicle body, the first mounting holes 6 are configured to be connected with the joints, the number of the mounting holes required by the former is less than that required by the latter, namely, the number of the mounting points on the body of the side sill 1 is reduced.

In some embodiments, referring to fig. 1, the side wall includes a top plate and a bottom plate opposite to each other along a first direction, the first mounting hole 6 is disposed through the top plate and the bottom plate, the top plate and the bottom plate are distributed along a second direction, the first region 7 and the second region 8 are disposed on the top plate and the bottom plate, the connecting portion 2 corresponds to the first region 7 and the outer side plate 10 connecting the top plate and the bottom plate, the functional portion 3 corresponds to the inner side plate 9 connecting the top plate and the bottom plate with the second region 8, and the second direction is perpendicular to the first direction.

The connecting portion 2 corresponds to the first region 7 and the outer panel 10, and the first mounting hole 6 is provided in the first region 7, that is, when the joint is mounted, the first region 7 and the outer panel 10 are closer to the joint than the second region 8 and the inner panel 9, and thus the requirement for strength is greater, and increasing the thickness of the first region 7 and the outer panel 10 can improve the strength, where the second direction is the X direction in fig. 3.

In some embodiments, referring to fig. 1 to 3, the second region 8 on the top plate is provided with a plurality of second mounting holes 12 arranged along a third direction, and the third direction is perpendicular to the second direction and the first direction.

The plurality of second mounting holes 12 are used for mounting a cover plate for protecting a battery pack, when the boundary beam 1 is directly connected to the whole vehicle through a joint, the cover plate can be used as a floor of a passenger compartment, the second mounting holes 12 can be rivet nuts or steel wire tooth sockets, selection is performed according to actual conditions, and the third direction is the Z direction in fig. 3.

In some embodiments, with continued reference to fig. 1 and 4, the stiffeners 4 include at least one first stiffener 401 connecting the inner side plate 9 to the outer side plate 10 and/or at least one second stiffener 402 connecting the top plate to the bottom plate.

The reinforcing ribs 4 include at least one first reinforcing rib 401 connecting the inner side plate 9 and the outer side plate 10 and/or at least one second reinforcing rib 402 connecting the top plate and the bottom plate, and the following description will be given by taking two first reinforcing ribs 401 and two second reinforcing ribs 402 as examples, please refer to fig. 3, the two first reinforcing ribs 401 are arranged in the cavity at intervals along the first direction, the two second reinforcing ribs 402 are arranged in the cavity at intervals along the second direction, and the first reinforcing ribs 401 and the second reinforcing ribs 402 are used for absorbing the impact energy of the outside on the boundary beam 1, reducing the deformation amount of the boundary beam 1, and improving the strength and rigidity of the boundary beam 1.

In some embodiments, referring to fig. 1 and 4, in the second direction, the distance L1 between the first mounting hole 6 and the inner side plate 9 and the distance L2 between the first mounting hole 6 and the outer side plate 10 satisfy the relationship L1 > L2, wherein the thickness D1 of the second region 8, the thickness D2 of the first region 7 and the outer side plate 10, the thickness D3 of the inner side plate 9 and the thickness D4 of the second reinforcing rib 402 close to the first mounting hole 6 satisfy the relationship 2.5mm ≦ D3 ≦ D4 ≦ D1 ≦ D2.

The distance L1 between the first mounting hole 6 and the inner side plate 9 and the distance L2 between the first mounting hole 6 and the outer side plate 10 satisfy the relation L1 > L2, namely the first mounting hole 6 is close to the outer side plate 10, when the edge beam 1 is connected with the joint, the joint does not shield the second mounting hole 12 in the second area 8, thereby avoiding the influence on the installation of the cover plate after the joint is connected, meanwhile, the joint is connected in the area of the first area 7 and the outer side plate 9, the stress on the outer side plate 10 is far larger than that of the inner side plate 9, therefore, the thickness D1 of the second area 8, the thickness D2 of the first area 7 and the outer side plate 10, the thickness D3 of the inner side plate 9 and the thickness D4 of the second reinforcing rib 402 close to the first mounting hole 6 satisfy the relation 2.5mm < D3 < D4 mm < D1 < D2, it can be known from the thickness relation that the thicknesses of the first area 7 and the outer side plate 10 are always larger than that of the inner side plate 9, the edge strength of the edge beam 1 at the connecting part 2 is improved, and the weight of the second area 7 can be further reduced because the cost of the first area 7 is smaller than that of the edge beam 8. When D1 is less than or equal to 5mm, the second mounting hole 12 is in the form of a rivet nut; when D1 is larger than 5mm, the second mounting hole 12 is in the form of a steel wire tooth socket.

In some embodiments, with reference to fig. 1 to 4, the side sill 1 further includes a protruding portion 11 disposed on the functional portion 3 and away from the connecting portion 2, the protruding portion 11 is hollow, and a height of the protruding portion 11 in the first direction is smaller than a height of the functional portion 3.

The cross-sectional shape of protruding exhibition portion 11 can be quadrangle also can be triangle-shaped, as long as guarantee that protruding exhibition portion 11 is the plane with the surface of battery package contact, protruding exhibition portion 11 and boundary beam 1 integrated into one piece increase the holistic intensity and the toughness of boundary beam 1 simultaneously, and protruding exhibition portion 11 is inside to be cavity, can also provide cushioning effect when lightening the whole weight of boundary beam 1.

In some embodiments, a third reinforcing rib 403 is provided inside the convex bulge portion 11.

The third reinforcing rib 403 may be, but not limited to, an orthogonal rib, an oblique rib, etc., and preferably, the third reinforcing rib 403 is an orthogonal rib, and the third reinforcing rib 403 is used to absorb the impact energy when the convex portion 11 is subjected to an external impact, thereby improving the strength of the convex portion 11.

The embodiment of the application also provides a frame, which comprises the edge beam in the embodiment.

The embodiment of the application also provides a battery pack which comprises the frame in the embodiment.

The embodiment of the application also provides a vehicle which comprises the battery pack in the embodiment.

As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.

Claims

1. The utility model provides a boundary beam for be connected to the consumer with the battery, the boundary beam includes the connector joining region, the boundary beam passes through the joining region is connected to the consumer, a serial communication port, the boundary beam include the lateral wall and by the lateral wall encloses the die cavity that closes and form, the die cavity is split into a plurality of cushion chambers through the strengthening rib, the lateral wall include the function portion and with the connecting portion that the joining region corresponds, the function portion distribute in connecting portion week side, the thickness of connecting portion is greater than the thickness of function portion, just connecting portion are seted up and are run through along the first direction a plurality of mounting holes that the boundary beam set up.

2. The sill of claim 1, wherein the side walls include top and bottom plates opposing each other in the first direction, the first mounting hole is disposed through the top and bottom plates, the top and bottom plates include first and second regions extending in a second direction, the connecting portion corresponds to the first region and the outer panel connecting the top and bottom plates, the functional portion corresponds to the inner panel connecting the top and bottom plates with the second region, and the second direction is perpendicular to the first direction.

3. The sill of claim 2, wherein said second region on said top plate is provided with a plurality of second mounting holes arranged in an array along a third direction, said third direction being perpendicular to said second direction and said first direction.

4. The sill of claim 3, wherein said reinforcing bars include at least one first reinforcing bar connecting said inner side plate to said outer side plate and/or at least one second reinforcing bar connecting said top plate to said bottom plate.

5. The edge beam of claim 4, wherein, in the second direction, a distance L1 between the first mounting hole and the inner side plate and a distance L2 between the first mounting hole and the outer side plate satisfy a relationship L1 > L2, wherein a thickness D1 of the second zone, thicknesses D2 of the first zone and the outer side plate, a thickness D3 of the inner side plate, and a thickness D4 of the second reinforcing rib adjacent to the first mounting hole satisfy a relationship 2.5mm ≦ D3 ≦ D4 mm ≦ D1 ≦ D2.

6. The edge beam of any one of claims 1-5, further comprising a raised portion disposed on the functional portion and distal from the connecting portion, wherein the raised portion is hollow, and wherein the height of the raised portion in the first direction is less than the height of the functional portion.

7. The sill of claim 6, wherein a third reinforcing bead is disposed within said raised portion.

8. A frame, comprising: the sill of any of claims 1-7.

9. A battery pack, comprising: the frame of claim 8.

10. A vehicle, characterized by comprising: the battery pack according to claim 9.