CN111883711A

CN111883711A - Battery package protection beam

Info

Publication number: CN111883711A
Application number: CN202010797267.3A
Authority: CN
Inventors: 廖洋; 雷涛; 贺东方; 龙曲波; 刘鹏; 杨黄锐; 肖伟; 刘祥
Original assignee: Dongfeng Wuhan Industrial Co ltd
Current assignee: Dongshi Wuhan New Energy Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-11-03
Anticipated expiration: 2040-08-10
Also published as: CN111883711B

Abstract

The invention relates to a battery pack protection beam which comprises four boundary beams, side beams, connecting beams and supporting beams, wherein the four boundary beams surround to form a containing area; the number of the side beams is two, and the two side beams are respectively connected with the two side beams at opposite positions in the accommodating area; the tie-beam reaches it all is located to prop up supporting beam hold in the district, the both ends of tie-beam respectively with be located hold two on the district relative position the boundary beam is connected, prop up supporting beam's both ends also respectively with be located hold two on the district relative position the boundary beam is connected, just prop up supporting beam with be the contained angle between the tie-beam. The battery pack protection beam provided by the invention achieves the effect of increasing the structural strength of the battery pack protection beam through the structures and the connecting positions of the side beams and the side beams.

Description

Battery package protection beam

Technical Field

The invention relates to the field of battery wrapping beams, in particular to a battery wrapping protection beam.

Background

With the improvement of environmental awareness and the popularization of the country, new energy vehicles using electric energy as power are gradually replacing fuel vehicles. As a core part of a new energy vehicle, the performance of a power battery pack directly affects the performance of the vehicle, and generally, the power battery pack needs to be wrapped and sealed by a shell and fixed with the vehicle through a side beam arranged on the shell. Besides being fixedly connected with a vehicle body, the boundary beam also plays a role of bearing a power battery pack, so that the boundary beam has higher requirements on parameters such as strength, weight and the like. The existing boundary beam is formed by cold stamping, and has the problems of high cost, low strength, heavy weight and the like.

Disclosure of Invention

In view of this, the invention provides a battery pack protection beam which solves the problems of high cost, low strength and heavy weight of a battery pack beam.

In order to achieve the above object, the technical solution of the present invention is to provide a battery pack protection beam, which includes four side beams, four connecting beams and a supporting beam, wherein the four side beams are connected in sequence to form a containing area; the number of the side beams is two, the side beams are positioned outside the accommodating area, and the two side beams are respectively connected with four side beams which are arranged in an enclosing manner to form two opposite positions in the accommodating area; the edge beam comprises a bending part and a reinforcing part, the bending part is bent to form a ring shape, the reinforcing part is positioned in the ring shape, one end of the reinforcing part is integrally formed with the bending part, the other end of the reinforcing part is connected with the inner wall of the ring formed by the bending part, and round corners are formed at two ends of the reinforcing part; the side beam comprises a lining and an outer plate, the outer plate comprises a bottom plate and two flat arms, the two flat arms are positioned at two ends of the bottom plate and connected with the bottom plate to form a U shape by matching with the bottom plate, and the two flat arms are connected with one surface of the bending part far away from the containing area to seal the U-shaped opening; the lining is positioned in a U-shape formed by the bottom plate and the two flat arms and comprises a first welding part and a second welding part, the first welding part is connected with the bottom plate, and the second welding part is respectively connected with the two flat arms; the tie-beam reaches it all is located to prop up supporting beam hold in the district, the both ends of tie-beam respectively with be located hold two on the district relative position the boundary beam is connected, prop up supporting beam's both ends also respectively with be located hold two on the district relative position the boundary beam is connected, just prop up supporting beam with be the contained angle between the tie-beam.

Compared with the prior art, the battery pack protection beam provided by the invention has the following beneficial effects:

through the structure of portion of bending, rib, planking and inside lining for the mechanical strength of battery package protection beam obtains the reinforcing, and weight reduction, thereby when connecting the battery package on the automobile body through battery package protection beam, usable battery package protection beam carries out better protection to the battery package.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.

Drawings

Fig. 1 is a schematic structural view of a battery pack protection beam according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the edge beam of FIG. 1;

FIG. 3 is a schematic view of the positional relationship between the side frame and the side sill of FIG. 1;

FIG. 4 is a cross-sectional view of the side rail and side rail of FIG. 1 in a positional relationship;

FIG. 5 is a schematic structural view of the liner of FIG. 1;

FIG. 6 is a cross-sectional view of the inner liner and the outer panel of FIG. 1;

FIG. 7 is a schematic view of the connection beam and the support beam of FIG. 1;

description of reference numerals: 10. a battery pack protection beam; 20. a boundary beam; 30. a side beam; 40. a connecting beam; 50. a support beam; 21. a bending part; 22. a reinforcing portion; 24. reinforcing the strips; 31. a liner; 32. an outer plate; 311. a first weld; 312. a second weld; 321. a base plate; 322. a flat arm; 41. a groove; 51. and (4) a boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 7, the battery pack protection beam 10 provided by the present invention includes four side beams 20, side beams 30, connecting beams 40, and supporting beams 50, wherein the four side beams 20 are connected in sequence to form a receiving area N for receiving a battery pack. The side members 30 are two in number, are located outside the accommodation region N, and are connected to the two side members 20 located at opposite positions in the accommodation region N. The connecting beam 40 and the supporting beam 50 are both located in the containing area N, two ends of the connecting beam 40 are respectively connected with the two edge beams 20 at opposite positions in the containing area N, two ends of the supporting beam 50 are also respectively connected with the two edge beams 20 at opposite positions in the containing area N, and an included angle is formed between the connecting beam 40 and the supporting beam 50. The battery is located in the accommodating area N, and the side beams 20 and the side beams 30 are connected with the vehicle body at the side far away from the accommodating area N so as to connect the battery pack to the vehicle body.

It is understood that the battery is located in the receiving region N, and may be connected to one of the side frame 20, the connecting beam 40 and the supporting beam 50 alone, or may be connected to the side frame 20, the connecting beam 40 and the supporting beam 50 at the same time, as long as the battery can be fixed in the receiving region N.

It can be understood that the two edge beams 20 at opposite positions in the accommodating area N are the two edge beams 20 which are parallel to each other after the accommodating area N is formed.

Specifically, boundary beam 20 includes portion of bending 21 and rib 22, and the portion of bending 21 is bent and is the annular, and rib 22 is located the annular that portion of bending 21 formed of bending, and its one end and the portion of bending 21 integrated into one piece, the other end and the annular inner wall connection that portion of bending 21 formed, and the both ends of rib 22 form fillet R to utilize rib 22 to increase the annular intensity that portion of bending 21 formed.

The side beam 30 includes an inner liner 31 and an outer plate 32, the outer plate includes a bottom plate 321 and two flat arms 322 connected to two ends of the bottom plate, a U-shape is formed between the two flat arms 322 and the bottom plate 321, and the two flat arms 322 are connected to a surface of the bending portion 21 away from the accommodating region N to close the U-shaped opening. The lining 31 is disposed in the U-shape formed by the bottom plate 321 and the two flat arms 322, and includes a first welding portion 311 and a second welding portion 312, wherein the first welding portion 311 is connected to the bottom plate 321, and the second welding portion 312 is respectively connected to the two flat arms 322, so as to fill the U-shape formed by the bottom plate 321 and the two flat arms 322 with the lining 31, thereby increasing the strength of the side member 30.

It is understood that the connections between the annular inner wall formed by the reinforcing portion 22 and the bent portion 21, between the two flat arms 322 and the bent portion 21, between the first welding portion 311 and the bottom plate 321, and between the second welding portion 312 and the flat arms 322 are all welded.

It is understood that the number of the outer plates 32 is two, the number of the inner liners 31 is plural, and the inner liners 31 are disposed at equal intervals in the U-shape formed by the outer plates 32.

The outer plate 32 and the bent portion 21 are provided with screws to connect the battery pack protection beam 10 to the vehicle body, and the reinforcing portion 22 reinforces the bent portion 21 and the lining 21 fills the outer plate 32, thereby increasing the overall strength of the battery pack protection beam 10.

It is understood that the connection of the battery with the connecting beam 40 and the supporting beam 50 may be realized by a screw connection, or may be realized by a sticking connection, etc., as long as the battery pack can be fixed in the accommodating region N.

Further, the edge beam 20 further includes two reinforcing bars 24, the number of the reinforcing bars 24 is two, and the two reinforcing bars 24 are both located in the accommodating area N and connected to the bending portions 21 of the two edge beams 20 located at opposite positions in the accommodating area N, so as to further increase the strength of the edge beam 20 through the reinforcing bars 24.

Further, the number of the connection beams 40 is plural, and both ends of the plural connection beams 40 are connected to the two side beams 20 located at opposite positions in the accommodating region N.

Further, the support beam 50 and the connection beam 40 are perpendicular to each other.

Furthermore, a boss 51 is formed on the support beam 50, a groove 41 is formed on the connecting beam 40, and the boss 51 is clamped with the groove 41.

Further, the lining 31 further includes a connecting portion 313, the connecting portion 313 is U-shaped, the first welding portion 311 is located on the U-shaped arm of the connecting portion 313 and connected to the connecting portion 313, and the second welding portion 312 is located on a side of the connecting portion 313 away from the connecting portion 313 and connected to the connecting portion 313. The connection portion 313 is provided in a U-shaped configuration, so that the welding range of the first welding portion 311 can be widened.

It is understood that, in the present embodiment, the connection portion 313 is integrally formed with the first welding portion 311 and the second welding portion 312.

The principle of the invention is as follows: four edge beams 20 connected in sequence are used for enclosing a square accommodating area N, a connecting beam 40 and a supporting beam 50 are arranged in the accommodating area, so that the battery pack is connected into the accommodating area N through the edge beams 20 and/or the connecting beam 40 and/or the supporting beam 50, and then is connected with a vehicle body through the edge beams 20 and the side beams 30, and therefore the battery pack is connected onto the vehicle body. Because the annular portion of bending 21 that the boundary beam 20 formed through bending and the reinforcing part 22 that is located the annular that the portion of bending 21 formed, and reinforcing part 22 both ends form the fillet to make boundary beam 20's intensity increase, and be in and hold even boundary beam 20 on the relative position in district N and still be connected with curb girder 30 and carry out further reinforcing to boundary beam 20, thereby form the better protection to the battery package.

Claims

1. The utility model provides a battery package protection roof beam which characterized in that: comprises that

The side beams are four in number, and the four side beams are sequentially connected and surrounded to form a containing area; the number of the side beams is two, the side beams are positioned outside the accommodating area, and the two side beams are respectively connected with four side beams which are arranged in an enclosing manner to form two opposite positions in the accommodating area;

the edge beam comprises a bending part and a reinforcing part, the bending part is bent to form a ring shape, the reinforcing part is positioned in the ring shape, one end of the reinforcing part is integrally formed with the bending part, the other end of the reinforcing part is connected with the inner wall of the ring formed by the bending part, and round corners are formed at two ends of the reinforcing part;

the side beam comprises a lining and an outer plate, the outer plate comprises a bottom plate and two flat arms, the two flat arms are positioned at two ends of the bottom plate and connected with the bottom plate to form a U shape by matching with the bottom plate, and the two flat arms are connected with one surface of the bending part far away from the containing area to seal the U-shaped opening; the lining is positioned in a U-shape formed by the bottom plate and the two flat arms and comprises a first welding part and a second welding part, the first welding part is connected with the bottom plate, and the second welding part is respectively connected with the two flat arms;

the tie-beam reaches it all is located to prop up supporting beam hold in the district, the both ends of tie-beam respectively with be located hold two on the district relative position the boundary beam is connected, prop up supporting beam's both ends also respectively with be located hold two on the district relative position the boundary beam is connected, just prop up supporting beam with be the contained angle between the tie-beam.

2. The battery pack protective beam of claim 1, wherein:

the boundary beam further comprises two reinforcing strips, the two reinforcing strips are located in the containing area and connected to the bending portions of the two boundary beams located at opposite positions in the containing area.

3. The battery pack protective beam of claim 1, wherein:

the quantity of tie-beam is a plurality of, a plurality of the both ends of tie-beam all with be in the volume of relative position in the accommodation area the boundary beam is connected.

4. The battery pack protective beam of claim 1, wherein:

the edge beam and the support beam are perpendicular to each other.

5. The battery pack protective beam of claim 1, wherein:

the supporting beam is provided with a boss, the connecting beam is provided with a groove, and the boss is clamped with the groove.

6. The battery pack protective beam of claim 1, wherein:

the connection between the reinforcing part and the annular inner wall formed by the bending part, between the two flat arms and the bending part, between the first welding part and the bottom plate and between the second welding part and the flat arms are welded.

7. A battery protection beam as defined in claim 1, wherein:

the inside lining still includes connecting portion, connecting portion are the U-shaped, first weld part connect in on two U-shaped arms of connecting portion, second weld part connect in connecting portion are kept away from one side of first weld part.