High-voltage box reinforcing structure and battery pack thereof

Abstract

The utility model discloses a high-voltage box reinforcing structure and a battery pack thereof, and the high-voltage box reinforcing structure comprises a first reinforcing structure arranged on the bottom surface of a high-voltage box, a second reinforcing structure arranged at the corner of the side surface of the high-voltage box, and a connecting structure arranged at the corner of the bottom surface of the high-voltage box, the connecting structure is used for connecting the first reinforcing structure and the second reinforcing structure; the end part of the first reinforcing structure does not protrude out of the side surface of the high-voltage box; the first reinforcing structure comprises transverse reinforcing ribs and longitudinal reinforcing ribs which are connected with each other, and the single transverse reinforcing rib is clamped at the corner of the side face and the bottom face of the high-voltage box. According to the high-voltage box, the first reinforcing structure, the second reinforcing structure and the connecting structure are arranged, and the bottom surface and the side surfaces of the high-voltage box are structurally reinforced, so that the high-voltage box has the advantages of low production difficulty, low loss and high efficiency; the problem that high-low voltage wire harnesses connected to the high-voltage box are split by the first reinforcing structure can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure box technical field, concretely relates to a high pressure box reinforcing structure and battery pack thereof. BACKGROUND

[0002] High pressure box side surface needs to install numerous electrical components, and the electrical components are strictly required to the flatness of the mounting surface, so the high pressure box body structure is generally a flat plate to the four corners bending and welding to form the box body, and the electrical components are installed on the four side surfaces of the box body. This bending forming high pressure box does not need a special forming die, has the advantages of short production cycle, low production cost and small processing difficulty, and is widely used in many scenes such as passenger cars, trucks, large special vehicles and the like.

[0003] Most high pressure boxes weld L-shaped supports on their side surfaces as their installation and fixing structures, the fixing points of this installation form are stress concentrated, the high pressure box body structure cannot be strengthened, and the bending edge length of the L-shaped support is long, and the cutting edge is sharp, which is a safety hazard for the high and low voltage wire harness connected to the high pressure box.

[0004] In the high pressure box of multiple branches, the number of electrical components is large and densely distributed, and the vertical height is often high. When the vehicle produces instantaneous acceleration due to bumpy road conditions or sharp turns, the stress of the fixing point and the high pressure box side weld increases sharply, and the fixed support or the high pressure box body is prone to weld failure and plate tearing, thereby causing insulation safety failure of the high pressure box.

[0005] Therefore, a new scheme is needed to solve the above problems. SUMMARY

[0006] The utility model provides a kind of high pressure box reinforcing structure and battery pack thereof, can solve the problem of the prior art when the vehicle produces instantaneous acceleration due to bumpy road conditions or sharp turns, the stress of the fixing point and the high pressure box side weld increases sharply, and the fixed support or the high pressure box body is prone to weld failure and plate tearing, thereby causing insulation safety failure of the high pressure box.

[0007] The utility model provides a kind of high pressure box reinforcing structure, including the first reinforcing structure being arranged at the bottom surface of high pressure box, and the second reinforcing structure being arranged at the corner of the side surface of high pressure box, and the connecting structure of high pressure box bottom corner, the connecting structure is used to connect the first reinforcing structure and second reinforcing structure, the end of the first reinforcing structure does not protrude from the side surface of high pressure box;

[0008] The first reinforcing structure includes transverse reinforcing rib and longitudinal reinforcing rib connected with each other, and a single transverse reinforcing rib is connected to the corner of the side surface and the bottom surface of high pressure box.

[0009] Further, the transverse reinforcing rib and longitudinal reinforcing rib are provided with weight reduction grooves.

[0010] Further, the second reinforcing structure comprises a plurality of vertical reinforcing ribs arranged at the side corners by clamping.

[0011] Further, the upper end of the transverse reinforcing rib is provided with a first bent plate abutting against the side surface of the high-voltage box, the vertical reinforcing rib comprises a vertical reinforcing rib main body and a second bent plate and a third bent plate arranged at both ends of the vertical reinforcing rib main body by bending respectively, the second bent plate is connected to the surface of the high-voltage box and the end of the first bent plate from top to bottom by means of lap welding, and the third bent plate is connected to the side surface of the high-voltage box by means of lap welding.

[0012] Further, a plurality of horizontal lightening holes are arranged at the vertical reinforcing rib in the height direction.

[0013] Further, the number of the transverse reinforcing ribs is two, the number of the longitudinal reinforcing rib is one, and the single longitudinal reinforcing rib is arranged vertically at the middle position of the two transverse reinforcing ribs.

[0014] Further, a plurality of stud bolts for fixing the high-voltage box on the whole vehicle support are arranged on the upper surface of the transverse reinforcing rib and the longitudinal reinforcing rib.

[0015] Further, the connecting structure is an L-shaped connecting plate, and the two surfaces of the connecting plate are fixedly connected with the end portions of the transverse reinforcing rib and the longitudinal reinforcing rib respectively.

[0016] Further, the lower surfaces of the transverse reinforcing rib and the longitudinal reinforcing rib are flush.

[0017] The utility model also provides a battery pack comprising the high-voltage box reinforcing structure.

[0018] Compared with the prior art, the utility model discloses a first reinforcing structure, a second reinforcing structure and a connecting structure, the bottom surface and the side surface of the high-voltage box are structurally reinforced, no special forming die is needed, and the utility model has the advantages of small production difficulty, low loss and high efficiency, and in addition, the end portion of the first reinforcing structure does not protrude from the side surface of the high-voltage box, and the problem that the high-voltage box is cut by the first reinforcing structure can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a schematic view of the whole structure of the high-voltage box reinforcing structure and the high-voltage box combination of the utility model;

[0020] Figure 2 Fig. 2 is a bottom view of the high-voltage box reinforcing structure and the high-voltage box combination of the utility model;

[0021] Figure 3 Fig. 3 is a schematic view of the whole structure of the high-voltage box reinforcing structure of the utility model.

[0022] Figure 4 For Figure 3 enlarged view at A in the middle;

[0023] Figure 5 For the overall structure of the high-voltage box reinforcing structure of the utility model is lack of a transverse reinforcing rib schematic diagram;

[0024] The drawing reference: 1, high-voltage box;2, first reinforcing structure;21, transverse reinforcing rib;211, first bending plate;22, longitudinal reinforcing rib;23, weight-reducing groove;24, stud;3, second reinforcing structure;31, vertical reinforcing rib;311, vertical reinforcing rib main body part;312, second bending plate;313, third bending plate;32, lightening hole;4, connecting structure;41, connecting plate. DETAILED DESCRIPTION

[0025] In order to further understand the utility model content, characteristics and effects of the utility model, the following examples are given, and the attached Figures 1-5 The detailed description is as follows.

[0026] As Figures 1-5 shown, the utility model provides a kind of high-voltage box reinforcing structure, including the first reinforcing structure 2 being arranged at the bottom surface of high-voltage box 1, and the second reinforcing structure 3 being arranged at the side corner of high-voltage box 1, and the connecting structure 4 of the corner of high-voltage box 1 bottom surface, connecting structure 4 is used to connect first reinforcing structure 2 and second reinforcing structure 3, and the end of first reinforcing structure 2 does not protrude from the side surface of high-voltage box 1.

[0027] First reinforcing structure 2 includes transverse reinforcing rib 21 and longitudinal reinforcing rib 22 connected by welding, and single transverse reinforcing rib 21 is connected at the corner of side surface and bottom surface of high-voltage box 1.

[0028] The utility model is by being arranged first reinforcing structure, second reinforcing structure and connecting structure, by the structure of bottom surface and side surface of high-voltage box is reinforced, without special forming die, with the advantages of small production difficulty, less loss, high efficiency, in addition, the end of first reinforcing structure does not protrude from the side surface of high-voltage box, can avoid the problem that high-voltage box is connected high-low voltage wire harness is split by first reinforcing structure.

[0029] In this embodiment, as Figure 3 shown, transverse reinforcing rib 21 and longitudinal reinforcing rib 22 are all long strip, and are provided with weight-reducing groove 23 for reducing weight along the length direction of each.

[0030] In this embodiment, as Figure 3 shown, second reinforcing structure 3 includes four vertical reinforcing ribs 31 connected at the corner of side surface, and its height is adapted to the height of high-voltage box 1.

[0031] In this embodiment, as shown in Figure 3 and 4 The upper end of the transverse reinforcing rib 21 is provided with a first bent plate 211 abutting against the side surface of the high-pressure box 1, the vertical reinforcing rib 31 comprises a vertical reinforcing rib main body part 311 and a second bent plate 312 and a third bent plate 313 respectively provided at both side ends of the vertical reinforcing rib main body part 311 by bending, the second bent plate 312 is connected to the surface of the high-pressure box 1 and the end part of the first bent plate 211 from top to bottom by lap welding, the third bent plate 313 is connected to the side surface of the high-pressure box 1 by lap welding, the high-pressure box 1 is a cuboid structure as a whole, the horizontal projection shape of the vertical reinforcing rib main body part 311 is L-shaped, so that the corners of the adjacent side surfaces of the high-pressure box 1 are clamped, and the strength of the entire high-pressure box reinforcing structure is further strengthened by the second bent plate 312 and the third bent plate 313.

[0032] In this embodiment, as shown in Figure 3 The vertical reinforcing rib 31 is provided with a plurality of horizontally arranged lightening holes 32 spaced apart along the height direction, for reducing the overall weight.

[0033] In this embodiment, as shown in Figure 2 The number of the transverse reinforcing ribs 21 is two, and the number of the longitudinal reinforcing rib 22 is one, and of course other number combinations can be adopted according to actual conditions. The single longitudinal reinforcing rib 22 is vertically arranged at the middle position of the two transverse reinforcing ribs 21, wherein the transverse reinforcing rib 21 is arranged along the width direction of the bottom surface of the high-pressure box 1, and the longitudinal reinforcing rib 22 is arranged along the length direction of the bottom surface of the high-pressure box 1, so that the overall structural strength is better.

[0034] In this embodiment, as shown in Figure 3 A plurality of threaded studs 24 for fixing the high-pressure box 1 to the vehicle support are fixedly arranged on the transverse reinforcing rib 21 and the longitudinal reinforcing rib 22, wherein two threaded studs 24 are arranged on each of the transverse reinforcing rib 21 and the longitudinal reinforcing rib 22. The threaded studs 24 are arranged to fix the high-pressure box 1 to the vehicle support below, and the vehicle support is provided with threaded holes matched with the threaded studs 24.

[0035] In this embodiment, as shown in Figure 4 The connecting structure 4 is an L-shaped connecting plate 41, and the two surfaces of the connecting plate 41 are respectively fixedly connected to the end parts of the transverse reinforcing rib 21 and the longitudinal reinforcing rib 22 by welding.

[0036] In this embodiment, the lower surfaces of the transverse reinforcing rib 21 and the longitudinal reinforcing rib 22 are flush, so that the entire high-pressure box 1 and the reinforcing structure thereof can be placed on the vehicle support below.

[0037] The utility model also provides a battery pack comprising the high-pressure box reinforcing structure.

[0038] The above-mentioned utility model only expresses the implementation manners of the utility model embodiments, and therefore cannot be understood as a limitation on the scope of the utility model patent, nor any form of limitation on the structure of the utility model embodiments. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model embodiments, a number of changes and improvements can be made, which are within the protection scope of the utility model embodiments.

Claims

1. A high-voltage box reinforcement structure, characterized in that: It includes a first reinforcing structure (2) disposed on the bottom surface of the high voltage box (1), a second reinforcing structure (3) disposed at the side corner of the high voltage box (1), and a connecting structure (4) at the corner of the bottom surface of the high voltage box (1). The connecting structure (4) is used to connect the first reinforcing structure (2) and the second reinforcing structure (3). The end of the first reinforcing structure (2) does not protrude from the side of the high voltage box (1). The first reinforcing structure (2) includes interconnected transverse reinforcing ribs (21) and longitudinal reinforcing ribs (22), with a single transverse reinforcing rib (21) snapped into the corner between the side and bottom of the high-voltage box (1).

2. The high-voltage box reinforcement structure according to claim 1, characterized in that: Both the transverse reinforcing rib (21) and the longitudinal reinforcing rib (22) are provided with weight-reducing grooves (23).

3. A high-voltage box reinforcement structure according to claim 1 or 2, characterized in that: The second reinforcing structure (3) includes multiple vertical reinforcing ribs (31) that are snapped together at the side corners.

4. The high-voltage box reinforcement structure according to claim 3, characterized in that: The upper end of the transverse reinforcing rib (21) is provided with a first bent plate (211) that abuts against the side of the high voltage box (1). The vertical reinforcing rib (31) includes a vertical reinforcing rib main body (311) and a second bent plate (312) and a third bent plate (313) respectively disposed on both sides of the vertical reinforcing rib main body (311) by bending. The second bent plate (312) is connected to the surface of the high voltage box (1) and the end of the first bent plate (211) from top to bottom by lap welding. The third bent plate (313) is connected to the side of the high voltage box (1) by lap welding.

5. The high-voltage box reinforcement structure according to claim 3, characterized in that: The vertical reinforcing rib (31) is provided with a plurality of horizontally arranged light-reducing holes (32) spaced apart along the height direction.

6. The high-voltage box reinforcement structure according to claim 1, characterized in that: There are two transverse reinforcing ribs (21) and one longitudinal reinforcing rib (22). The single longitudinal reinforcing rib (22) is vertically arranged in the middle position of the two transverse reinforcing ribs (21).

7. The high-voltage box reinforcement structure according to claim 6, characterized in that: Multiple studs (24) for fixing the high-voltage box (1) to the vehicle bracket are fixedly provided on the transverse reinforcing rib (21) and the longitudinal reinforcing rib (22).

8. The high-voltage box reinforcement structure according to claim 1, characterized in that: The connecting structure (4) is an L-shaped connecting plate (41), and the two sides of the connecting plate (41) are fixedly connected to the ends of the transverse reinforcing rib (21) and the longitudinal reinforcing rib (22), respectively.

9. The high-voltage box reinforcement structure according to claim 1, characterized in that: The lower surfaces of the transverse reinforcing rib (21) and the longitudinal reinforcing rib (22) are flush.

10. A battery pack, characterized in that: It includes the high-voltage box reinforcement structure as described in any one of claims 1 to 9.

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