CN212011102U

CN212011102U - Lower box body

Info

Publication number: CN212011102U
Application number: CN202021141194.4U
Authority: CN
Inventors: 李子凡; 李雷; 吴光麟
Original assignee: Kunshan Bao Innovative Energy Technology Co Ltd
Current assignee: Kunshan Bao Innovative Energy Technology Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-11-24
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a according to the utility model discloses a lower box, include: a tank body; the box comprises a box body and is characterized by comprising a first reinforcing piece and a second reinforcing piece, wherein the left side and the right side of the box body are respectively provided with the first reinforcing piece and the second reinforcing piece, the first reinforcing piece is connected above the second reinforcing piece, a connecting flanging extending downwards is arranged on the lower side of the first reinforcing piece, and the upper side of the second reinforcing piece is matched with the connecting flanging which faces away from one side of the box body. According to the utility model discloses a lower box all is equipped with first reinforcement and second reinforcement through the left and right sides at the case body, can promote the structural strength of box down, and non-deformable avoids because fragile when receiving external impact, and impact resistance is strong.

Description

Lower box body

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a lower box is related to.

Background

The lower box body of the battery module in the related art has lower structural strength and is easy to damage when being impacted by external force. Therefore, improvements are needed in the art.

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, the utility model provides a lower box, the structural strength of box is high down, and impact resistance is strong.

According to the utility model discloses a lower box, include: a tank body; the box comprises a box body and is characterized by comprising a first reinforcing piece and a second reinforcing piece, wherein the left side and the right side of the box body are respectively provided with the first reinforcing piece and the second reinforcing piece, the first reinforcing piece is connected above the second reinforcing piece, a connecting flanging extending downwards is arranged on the lower side of the first reinforcing piece, and the upper side of the second reinforcing piece is matched with the connecting flanging which faces away from one side of the box body.

According to the utility model discloses a lower box all is equipped with first reinforcement and second reinforcement through the left and right sides at the case body, can promote the structural strength of box down, and non-deformable avoids because fragile when receiving external impact, and impact resistance is strong.

According to an embodiment of the invention, the wall thickness of the first reinforcement is smaller than the wall thickness of the second reinforcement.

According to another embodiment of the present invention, the first reinforcement and the second reinforcement extend in both the front-rear direction of the tank body.

According to a further embodiment of the invention, the first reinforcement and the second reinforcement are arranged vertically flush.

According to a further embodiment of the invention, the first stiffener comprises: the upper end of the vertical reinforcing plate is connected with the open flanging of the box body; the box body is provided with a vertical reinforcing plate, one end of the vertical reinforcing plate is opposite to the box body, and the connecting flange is arranged at one end, facing the box body, of the horizontal reinforcing plate.

Furthermore, a plurality of lightening holes are formed in the vertical reinforcing plate.

Further, the upper end of the vertical reinforcing plate is connected to the end of the open flanging.

According to an alternative embodiment of the invention, the cross section of the second stiffener in a direction perpendicular to the front-rear direction is substantially formed in a U-shape, the opening of which is arranged towards the tank body.

Furthermore, the lower side of the second reinforcing piece faces to the end of the opening and is provided with a bent flanging, and the bent flanging is connected with the box body.

According to the utility model discloses a further embodiment, first reinforcement with the second reinforcement all with case body welding links to each other.

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 structural diagram of a lower box according to an embodiment of the present invention;

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

fig. 3 is a front view of the lower case according to an embodiment of the present invention.

Reference numerals:

the box comprises a lower box body 100, a box body 10, an open flanging 11, a first reinforcing part 20, a connecting flanging 21, a vertical reinforcing plate 22, a lightening hole 221, a transverse reinforcing plate 23, a second reinforcing part 30 and a bending flanging 31.

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.

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.

A lower case 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3.

As shown in fig. 1 and 2, a lower case 100 according to an embodiment of the present invention includes a case body 10, a first reinforcement 20, and a second reinforcement 30. Specifically, a first reinforcement 20 and a second reinforcement 30 are provided at both left and right sides of the tank body 10 for reinforcing the structural strength of both sides of the tank body 10. As shown in fig. 1, the first reinforcing member 20 is connected above the second reinforcing member 30, and the connecting flange 21 extending downward is provided on the lower side of the first reinforcing member 20, so that the contact area between the first reinforcing member 20 and the tank body 10 can be increased, and the connection between the first reinforcing member 20 and the tank body 10 can be more reliable. The upper side of the second reinforcing member 30 is fitted to the side of the connecting flange 21 facing away from the tank body 10, facilitating the coupling fit between the first reinforcing member 20 and the second reinforcing member 30.

According to the utility model discloses lower box 100 through all being equipped with first reinforcement 20 and second reinforcement 30 in the left and right sides of case body 10, can promote box 100's structural strength down, and non-deformable avoids because fragile when receiving external impact, and shock resistance is strong.

According to the utility model discloses an embodiment, the wall thickness of first reinforcement 20 is less than the wall thickness of second reinforcement 30, when guaranteeing the structural strength of box 100 down, realizes the structure lightweight, avoids down the structure of box 100 too heavy. In particular, the wall thickness of the first reinforcement 20 is 1mm and the wall thickness of the second reinforcement 30 is 2mm, i.e. the wall thickness of the second reinforcement 30 is 2 times the wall thickness of the first reinforcement 20.

According to the utility model discloses a further embodiment, first reinforcement 20 and second reinforcement 30 all extend along the fore-and-aft direction of case body 10, like this, all can play the reinforcing effect in the fore-and-aft length direction of case body 10, and then have promoted the holistic structural strength of lower box 100.

According to another embodiment of the present invention, the first reinforcement member 20 and the second reinforcement member 30 are disposed in a level in the vertical direction, so that the structure is more flat and beautiful.

According to the utility model discloses a further embodiment, first reinforcement 20 includes vertical reinforcing plate 22 and horizontal reinforcing plate 23, and the upper end of vertical reinforcing plate 22 links to each other with the uncovered turn-ups 11 of case body 10, and the one end of horizontal reinforcing plate 23 dorsad case body 10 links to each other with vertical reinforcing plate 22, connects turn-ups 21 and establishes in the one end of horizontal reinforcing plate 23 towards case body 10. Further, the connecting flange 21 extends downward by a height of 12 mm.

Furthermore, a plurality of lightening holes 221 are formed in the vertical reinforcing plate 22, so that the structural weight of the first reinforcing member 20 is reduced, and the structural lightweight design is realized. In the description of the present invention, "a plurality" means two or more.

Further, the upper end of the vertical reinforcing plate 22 is connected to the end of the open flange 11, and may be welded. The space below the tank body 10 is reasonably utilized.

According to an alternative embodiment of the present invention, the cross section of the second reinforcement 30 in the direction perpendicular to the front-rear direction is formed substantially in a U-shape, the opening of the U-shape being arranged towards the tank body 10. As shown in fig. 1, it can be understood that the open flange 11 and the first reinforcement member 20 are enclosed together in a structure having a U-shaped cross section. The second reinforcing member 30 is also formed in a U-shaped cross-section structure, which is advantageous in achieving a structural lightweight design of the lower case 100.

Further, the end of the lower side of the second reinforcing member 30 facing the opening is provided with a bent flange 31, the bent flange 31 is connected with the box body 10, and the contact area between the second reinforcing member 30 and the box body 10 can be increased through the bent flange 31.

According to the utility model discloses a still another embodiment, first reinforcement 20 and second reinforcement 30 all link to each other with case body 10 welding, need not extra connecting piece, and it is more reliable to connect.

Further, the first reinforcing member 20 and the second reinforcing member 30 are also connected by welding.

The utility model discloses lower box 100 is used for holding battery module (not shown), has the guard action to battery module, promotes box 100's structural strength down, is favorable to protecting the difficult impairement of battery module better, guarantees battery module's performance.

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 lower box, comprising:

a tank body;

the box comprises a box body and is characterized by comprising a first reinforcing piece and a second reinforcing piece, wherein the left side and the right side of the box body are respectively provided with the first reinforcing piece and the second reinforcing piece, the first reinforcing piece is connected above the second reinforcing piece, a connecting flanging extending downwards is arranged on the lower side of the first reinforcing piece, and the upper side of the second reinforcing piece is matched with the connecting flanging which faces away from one side of the box body.

2. The lower box section of claim 1, wherein the wall thickness of the first stiffener is less than the wall thickness of the second stiffener.

3. The lower case according to claim 1, wherein the first reinforcement and the second reinforcement each extend in a front-rear direction of the case body.

4. The lower case according to claim 1, wherein the first reinforcement and the second reinforcement are disposed vertically flush.

5. The lower case of claim 1, wherein the first stiffener comprises:

the upper end of the vertical reinforcing plate is connected with the open flanging of the box body;

the box body is provided with a vertical reinforcing plate, one end of the vertical reinforcing plate is opposite to the box body, and the connecting flange is arranged at one end, facing the box body, of the horizontal reinforcing plate.

6. The lower case of claim 5, wherein a plurality of lightening holes are provided on the vertical reinforcing plate.

7. The lower box body of claim 5, wherein the upper end of the vertical reinforcing plate is connected to the end of the open flange.

8. The lower tank body according to any one of claims 1 to 7, wherein a cross section of the second reinforcement in a direction perpendicular to the front-rear direction is formed substantially in a U-shape, an opening of the U-shape being arranged toward the tank body.

9. The bottom box according to claim 8, wherein the end of the lower side of the second reinforcement facing the opening is provided with a bent flange, and the bent flange is connected with the box body.

10. The lower tank of claim 1 wherein the first stiffener and the second stiffener are each welded to the tank body.