CN217405591U

CN217405591U - Battery box frame

Info

Publication number: CN217405591U
Application number: CN202221004202.XU
Authority: CN
Inventors: 魏聪; 王韬; 郝奥杰
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-09-09
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a battery box frame, which comprises a side frame, wherein the side frame comprises a middle frame body, and an outer frame body and an inner frame body which are arranged at the two sides of the middle frame body; the whole rectangle structure that is of middle framework, middle framework middle part is the triangle-shaped die cavity, the outer framework with middle framework sub-unit connection, the outer framework is rectangle die cavity structure, the outer framework lower extreme downwardly extending reaches the below of middle framework, the width of interior framework is by being close to the one end of middle framework is to keeping away from the one end of middle framework diminishes gradually, the utility model discloses box side frame includes three layer construction to still be equipped with the structure that contracts of ulcerate, when reducing battery box weight, compromise the inside structural design that contracts that increases of section bar on the basis of rigidity and intensity design, effectively eliminate or reduce external mechanical impact to the battery system side, improve power battery system security.

Description

Battery box frame

Technical Field

The utility model relates to a battery box technical field specifically is a battery box frame.

Background

At present, the problem of shortage of global petroleum resources is more and more serious, and the development of the automobile industry using petroleum as a main raw material is greatly threatened, so that the development of new energy electric automobiles becomes a necessary choice for the automobile industry. The safety of the power battery system is of great importance to the improvement of the safety of the whole automobile, and particularly when the automobile is impacted by the outside, the automobile is transferred to the power battery system, so that great examination is provided for the functional safety of the battery box body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery box frame to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a battery box frame comprises a side frame body, wherein the side frame body comprises a middle frame body, an outer frame body and an inner frame body, wherein the outer frame body and the inner frame body are arranged on two sides of the middle frame body;

the middle frame body is integrally of a rectangular structure, a triangular cavity is formed in the middle of the middle frame body, the outer frame body is connected with the lower portion of the middle frame body, the outer frame body is of a rectangular cavity structure, the lower end of the outer frame body extends downwards to the position below the middle frame body, and the width of the inner frame body is gradually reduced from one end close to the middle frame body to one end far away from the middle frame body.

As a further aspect of the present invention: the upper end and the lower end of the middle frame body are respectively provided with a second rectangular cavity and a third rectangular cavity, and the triangular cavity is positioned in the second rectangular cavity and the third rectangular cavity.

As a further aspect of the present invention: two rib plates which are obliquely arranged are arranged in the triangular cavity to divide the rectangular space of the triangular cavity into three triangular cavities.

As a further aspect of the present invention: the thickness of the plate on the outer side of the middle frame body is 3mm, the thickness of the plate on the inner side of the middle frame body is 3.5mm, and the thickness of the rib plate in the middle frame body is 2-2.5 mm.

As a further aspect of the present invention: the outer frame body comprises a first rectangular cavity and a trapezoidal cavity, and the trapezoidal cavity is fixedly connected with the outer side of the middle frame body.

As a further aspect of the present invention: the first rectangular cavity is at least internally provided with a horizontal rib plate and a vertical rib plate, the horizontal rib plate and the vertical rib plate are arranged in a crossed mode, and the lower portion of one end, away from the middle frame body, of the first rectangular cavity is provided with a chamfer angle.

As a further aspect of the present invention: the wall thickness of outer frame is 3mm, the wall thickness of interior frame is 3.5 mm.

As a further aspect of the present invention: the inner frame body is of a right-angled trapezoid structure, and a cavity is arranged in the inner frame body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses box side frame includes three layer construction to still be equipped with the structure that contracts of ulcerate, when reducing battery box weight, compromise the inside structural design that contracts that increases of section bar on the basis of rigidity and intensity design, effectively eliminate or reduce external mechanical shock to the battery system side, improve power battery system security.

Drawings

FIG. 1 is a schematic view of a battery box according to the present embodiment;

fig. 2 is a cross-sectional view of the side frame of the present embodiment.

In the figure: 1-box body, 2-side frame, 21-middle frame body, 22-outer frame body, 23-inner frame body, 24-first rectangular cavity, 25-trapezoidal cavity, 26-second rectangular cavity, 27-triangular cavity, 28-third rectangular cavity and 3-liquid cooling plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, in an embodiment of the present invention, a battery box frame includes a side frame 2, where the side frame 2 includes a middle frame 21, and an outer frame 22 and an inner frame 23 disposed at two sides of the middle frame 21.

The whole middle frame body 21 is of a rectangular structure, the middle part of the middle frame body 21 is provided with a triangular cavity 27, the upper end and the lower end of the middle frame body 21 are respectively provided with a second rectangular cavity 26 and a third rectangular cavity 28, the triangular cavity 27 is positioned in the second rectangular cavity 26 and the third rectangular cavity 28, two rib plates which are obliquely arranged are arranged in the triangular cavity 27 to divide the rectangular space of the triangular cavity 27 into three triangular cavities, the thickness of a plate at the outer side of the middle frame body 21 is 3mm, the thickness of a plate at the inner side of the middle frame body 21 is 3.5mm, and the thickness of a rib plate in the middle frame body 21 is 2-2.5 mm. Outer frame body 22 and middle frame body 21 sub-unit connection, outer frame body 22 is the rectangle die cavity structure, outer frame body 22 includes first rectangle die cavity 24, trapezoidal die cavity 25, the outside fixed connection of trapezoidal die cavity 25 and middle frame body 21, the below of frame body 21 is down extended to outer frame body 22 lower extreme, first rectangle die cavity 24 is inside to be provided with a horizontal floor and a vertical floor at least, horizontal floor and vertical floor cross arrangement, the lower part of the one end of first rectangle die cavity 24 keeping away from middle frame body 21 is provided with the chamfer angle, the wall thickness of outer frame body 22 is 3 mm. The width of the inner frame 23 gradually decreases from one end close to the middle frame 21 to one end far away from the middle frame 21, the inner frame 23 is in a right trapezoid structure, a cavity is arranged in the inner frame 23, and the wall thickness of the inner frame 23 is 3.5 mm.

In this embodiment, 1 outside of box is equipped with

side frame

2, and 1 below of box is equipped with

liquid cooling board

3, and 1 frame of box is the aluminium alloy ex-trusions, connects through gas shielded welding, and 1 frame of box passes through FDS screw technology with liquid cooling board 3 to be connected, and its intensity is high, and the leakproofness is good to can improve battery system inner space utilization. On the basis that the side frame 2 of this embodiment satisfies battery box frame rigidity, inside die cavity receives external impact when battery system, can follow the hypotenuse and burst and contract, and the dispersion absorbs the striking and produces external force, and the external force striking is offset to the box frame, and the inside enhancement layer of box can carry out the secondary to external force simultaneously and resist, eliminates or reduces box self section bar and external force to the impact of inside module, and then eliminates or reduces the whole car and receives the mechanical impact that causes the side of battery system when external impact.

The design of this embodiment box side frame cross-section not only can promote box bulk strength, can make the inside self of frame section bar burst and contract when the collision of reply whole car side post is strikeed moreover, eliminates or furthest reduces external power to the inside destruction of battery system, promotes power battery system security.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The battery box frame comprises a side frame (2), and is characterized in that the side frame (2) comprises a middle frame body (21), and an outer frame body (22) and an inner frame body (23) which are arranged on two sides of the middle frame body (21);

the middle frame body (21) is of a rectangular structure as a whole, a triangular cavity (27) is formed in the middle of the middle frame body (21), the outer frame body (22) is connected with the lower portion of the middle frame body (21), the outer frame body (22) is of a rectangular cavity structure, the lower end of the outer frame body (22) extends downwards to the lower portion of the middle frame body (21), and the width of the inner frame body (23) is gradually reduced from one end close to the middle frame body (21) to one end far away from the middle frame body (21).

2. The battery box frame according to claim 1, wherein the upper end and the lower end of the middle frame body (21) are respectively provided with a second rectangular cavity (26) and a third rectangular cavity (28), and the triangular cavity (27) is located in the second rectangular cavity (26) and the third rectangular cavity (28).

3. The battery box frame according to claim 1, wherein two ribs are arranged in the triangular cavity (27) to divide the rectangular space of the triangular cavity (27) into three triangular cavities.

4. The battery box frame as claimed in claim 3, wherein the thickness of the plate outside the intermediate frame body (21) is 3mm, the thickness of the plate inside the intermediate frame body (21) is 3.5mm, and the thickness of the rib plate inside the intermediate frame body (21) is 2-2.5 mm.

5. The battery box frame according to claim 1, wherein the outer frame (22) comprises a first rectangular cavity (24) and a trapezoidal cavity (25), and the trapezoidal cavity (25) is fixedly connected with the outer side of the middle frame (21).

6. The battery box frame according to claim 5, wherein at least one horizontal rib and one vertical rib are arranged inside the first rectangular cavity (24), the horizontal rib and the vertical rib are arranged in a crossed manner, and a chamfer is arranged on the lower portion of one end of the first rectangular cavity (24) far away from the middle frame body (21).

7. The battery box frame according to claim 1, wherein the wall thickness of the outer frame (22) is 3mm, and the wall thickness of the inner frame (23) is 3.5 mm.

8. The battery box frame as claimed in claim 1, wherein the inner frame (23) is a right trapezoid structure, and a cavity is formed in the inner frame (23).