Fixing structure of parallel copper bars and energy storage container thereof

Abstract

The utility model discloses a fixing structure of parallel copper bars and an energy storage container thereof, an upper copper bar and a lower copper bar are arranged in parallel up and down, the upper copper bar is used for connecting a battery module positive electrode and a manual maintenance switch, and the lower copper bar is used for connecting a battery module negative electrode and the manual maintenance switch. The fixing structure comprises an upper end plate used for clamping and fixing the upper copper bar, a lower end plate used for clamping and fixing the lower copper bar and a clamping structure used for connecting the upper end plate and the lower end plate, and the upper end plate can horizontally rotate by any angle relative to the lower end plate through the clamping structure. On one hand, by arranging the upper end plate, the lower end plate and the clamping structure for connecting the upper end plate and the lower end plate, the upper copper bar and the lower copper bar are separated by a certain distance, so that an electrical gap and a creepage distance between the upper copper bar and the lower copper bar can meet relevant standard requirements; and on the other hand, the clamping structure which can horizontally rotate at any angle relative to the lower end plate is arranged, so that copper bar groups which are arranged in parallel up and down in different arrangement forms can be adapted.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack technical field, concretely relates to a fixing structure of parallel copper bar and energy storage container thereof. BACKGROUND

[0002] With the capacity of energy storage container advancing in the direction of higher, be restricted in the restriction of limited plug -in box, the module arrangement in the plug -in box has the original single -row multi -module, become the layout pattern of double -row multi -module of lengthened edition. The B+, B- plug -in, MSD, fuse of plug -in box panel position are adjusted according to different design needs, and the B+, B- plug -in, MSD, fuse of the module total positive, total negative in the plug -in box to the plug -in box panel are mostly connected in the physical sense through copper bar, to realize the external transmission of current. Such transformation design makes copper bar exist in the cross -over situation of positive copper bar and negative copper bar in the narrow layout space, which will cause the copper bar and the related high -voltage electrical parts to be connected by using a tie, due to the limitation of space, the longer copper bar is arranged in cross, and the copper bar itself weight will make the cross -over copper bar close together when the related fixing point cannot be provided, which will make the electrical clearance and the creepage distance between the upper and lower copper bars cannot meet the relevant standard requirements. Especially in the long -distance long -distance transportation process, the cross -over copper bar insulation protection layer will appear the risk of wear and tear failure, thereby causing the problem of copper bar insulation failure.

[0003] Therefore, it is urgent to propose a new scheme to solve the above problems. SUMMARY

[0004] The utility model provides a kind of fixing structure of parallel copper bar and energy storage container thereof, can solve the problem that the electrical clearance and the creepage distance between the upper and lower copper bars cannot meet the relevant standard requirements in prior art, and possibly lead to copper bar insulation failure.

[0005] The utility model provides a kind of fixing structure of parallel copper bar, and upper copper bar and lower copper bar are arranged in parallel, and the upper copper bar is used to connect battery module positive and manual maintenance switch, and the lower copper bar is used to connect battery module negative and manual maintenance switch.

[0006] The fixing structure includes the upper end plate for clamping and fixing the upper copper bar, the lower end plate for clamping and fixing the lower copper bar and the clamping structure for connecting the upper end plate and the lower end plate, and the upper end plate can be rotated horizontally by any angle relative to the lower end plate through the clamping structure.

[0007] Further, a plurality of first clamping blocks are arranged on the upper end plate, and the top end of the first clamping block is provided with a first protrusion for limiting the upper copper bar.

[0008] Further, the cross section shape of the first protrusion is a right triangle.

[0009] Further, the clamping structure is a mushroom head clamping structure, comprising a mushroom male head arranged on the upper end plate and a mushroom female head arranged on the lower end plate, the mushroom male head comprises a cylindrical middle part and a hemispherical protruding part, the middle part and the protruding part are coaxially arranged, the middle part is fixedly arranged on the surface of the upper end plate, and the radius of the bottom surface of the protruding part is greater than the radius of the middle part.

[0010] Further, the mushroom male head is provided with a first U-shaped groove and a second U-shaped groove which are perpendicular to each other, the first U-shaped groove and the second U-shaped groove extend downward into the middle part, the lower end plate is provided with a circular hole for the mushroom male head to pass through, and the radius of the circular hole is smaller than the radius of the middle part.

[0011] Further, the first U-shaped groove and the second U-shaped groove are symmetrically arranged along the axial section of the mushroom head clamping structure.

[0012] Further, the double-sided adhesive block is arranged between the lower end plate and the lower copper bar.

[0013] Further, the mushroom female head comprises a containing groove for containing the protruding part.

[0014] Further, the mushroom male head and the mushroom female head are fixed at the middle positions of the upper end plate and the lower end plate by welding respectively.

[0015] The embodiment also provides a kind of energy storage container, comprising the fixing structure of the above parallel copper bar.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1, the utility model discloses a fixing structure of parallel copper bar, which comprises an upper end plate, a lower end plate and a clamping structure for connecting the two, so that the upper and lower copper bars are separated by a certain distance, so that the electrical gap and the creepage distance between the upper and lower copper bars can meet the relevant standard requirements.

[0018] 2, the utility model discloses a fixing structure of parallel copper bar, which comprises an upper end plate, a lower end plate and a clamping structure for connecting the two, so that the upper and lower copper bars are separated by a certain distance, so that the electrical gap and the creepage distance between the upper and lower copper bars can meet the relevant standard requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view that the fixing structure of the utility model parallel copper bar is installed on the battery box;

[0020] Figure 2 It is a structure schematic view that the fixing structure of the utility model parallel copper bar is installed on the battery box;

[0021] Figure 3 It is a structure schematic view that the fixing structure of the utility model parallel copper bar is installed on the battery box;

[0022] Figure 4 This is an exploded view of the fixing structure of the parallel copper busbar of this utility model;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 6 This is a schematic diagram of the structure of the lower end plate of this utility model;

[0025] Reference numerals in the attached diagram: 1. Upper copper busbar; 2. Lower copper busbar; 3. Upper end plate; 31. Multiple sets of first snap-fit ​​blocks; 311. First protrusion; 4. Lower end plate; 41. Second snap-fit ​​block; 411. Second protrusion; 42. Round hole; 5. Snap-fit ​​structure; 51. Mushroom-shaped male connector; 511. Middle part; 512. Protrusion; 513. First U-shaped groove; 514. Second U-shaped groove; 52. Mushroom-shaped female connector; 521. Receiving groove; 6. Double-sided adhesive block; 71. Battery module positive terminal; 72. Battery module negative terminal; 8. Manual maintenance switch; 9. Fixing structure. Detailed Implementation

[0026] To further understand the utility model's content, features, and effects, the following embodiments are provided, along with accompanying drawings. Figures 1-6 The details are as follows.

[0027] like Figures 1-6 As shown, this utility model provides a fixing structure for parallel copper busbars. The upper copper busbar 1 and the lower copper busbar 2 are arranged parallel to each other. The upper copper busbar 1 is used to connect the positive terminal 71 of the battery module and the manual maintenance switch 8, and the lower copper busbar 2 is used to connect the negative terminal 72 of the battery module and the manual maintenance switch 8. The fixing structure 9 includes an upper end plate 3 for snapping and fixing the upper copper busbar 1, a lower end plate 4 for snapping and fixing the lower copper busbar 2, and a snap-fit ​​structure 5 for connecting the upper end plate 3 and the lower end plate 4. The upper end plate 3 can be rotated horizontally relative to the lower end plate 4 at any angle through the snap-fit ​​structure 5. The middle part of the upper copper busbar 1 is arranged parallel to the lower copper busbar 2 through a bending process. The snap-fit ​​structure 5 of this embodiment can adapt to copper busbar groups arranged parallel to each other at any intersection angle. The snap-fit ​​structure 5 is made of insulating material, so that the copper busbars at the transition point are protected, preventing them from being exposed, and also reducing the possibility of short circuits caused by the copper busbars overlapping with other conductors.

[0028] This invention, on the one hand, sets up an upper end plate, a lower end plate, and a snap-fit ​​structure for connecting the two, thus separating the upper and lower copper busbars by a certain distance, so that the electrical clearance and creepage distance between the upper and lower copper busbars can meet the relevant standard requirements; on the other hand, by setting up a snap-fit ​​structure that can rotate horizontally at any angle relative to the lower end plate, it can adapt to copper busbar groups with different arrangements of upper and lower parallel arrangement.

[0029] In the embodiment, as shown in Figure 3 The upper end plate 3 is provided with two sets of oppositely arranged first clamping blocks 31, the top end of the first clamping block 31 is provided with a first protrusion 311 for limiting the upper copper bar 1, and the corresponding lower end plate 4 is provided with two sets of second clamping blocks 41, the top end of the second clamping block 41 is provided with a second protrusion 411 for clamping the lower copper bar 2. The main body of the upper and lower end plates is a square flat plate structure, the first protrusion 311 and the second protrusion 411 used in pairs are located at the same height and are respectively used for limiting and clamping the upper copper bar 1 and the lower copper bar 2.

[0030] In the embodiment, as shown in Figure 3 and 4 The cross-sectional shape of the first protrusion 311 and the second protrusion 411 is a right triangle, and the cross-sectional direction is perpendicular to the direction of the corresponding copper bar, which is convenient for limiting the copper bar and saves materials.

[0031] In the embodiment, as shown in Figure 4 and 5 The clamping structure 5 is a mushroom head clamping structure, which includes a mushroom male head 51 arranged on the upper end plate 3 and a mushroom female head 52 arranged on the lower end plate 4. The mushroom male head 51 includes a cylindrical intermediate part 511 and a hemispherical protruding part 512, which are coaxially arranged. The intermediate part 511 is fixedly arranged on the surface of the upper end plate 3, and the radius of the bottom surface of the protruding part 512 is greater than the radius of the intermediate part 511. The radius is the value when the mushroom male head 51 is not compressed. The materials of the upper end plate 3, the lower end plate 4, the mushroom male head 51 and the mushroom female head 52 are plastic. The mushroom male head 51 and the upper end plate 3 are integrally formed by injection molding, and the mushroom female head 52 and the lower end plate 4 are integrally formed by injection molding.

[0032] In the embodiment, as shown in Figure 5 The mushroom male head 51 is provided with a first U-shaped groove 513 and a second U-shaped groove 514 perpendicular to each other, and the first U-shaped groove 513 and the second U-shaped groove 514 are both extended into the intermediate part 511. After the mushroom male head 51 is compressed by the inner side wall when passing through the circular hole 42, the shape of the first U-shaped groove 513 and the second U-shaped groove 514 changes from U-shaped to V-shaped. The lower end plate 4 is provided with a circular hole 42 for the mushroom male head 51 to pass through, and the radius of the circular hole 42 is smaller than the radius of the intermediate part 511, which facilitates the clamping of the intermediate part 511 in the circular hole 42.

[0033] In the embodiment, as shown in Figure 5 The first U-shaped groove 513 and the second U-shaped groove 514 are arranged symmetrically along the axial cross section of the mushroom head clamping structure, which divides the protruding part 512 into four independent structures symmetrically, making the clamping process more convenient.

[0034] In the embodiment, as shown in Figure 4 The lower end plate 4 and the lower copper bar 2 are provided with double-sided adhesive blocks 6, which facilitate the fixation of the lower end plate 4 on the lower copper bar 2. In addition, the surface of the upper end plate 3 close to the upper copper bar 1 can be provided with elastic sheets facilitating the installation of the upper copper bar 1. In the embodiment, the lower end plate 4 is first fixed on the lower copper bar 2 through the double-sided adhesive blocks 6, so that the lower copper bar 2 is clamped in the second clamping block 41 and is limited by the second protrusion 411; then the mushroom male head 51 is clamped into the mushroom female head 52, and the mushroom male head 51 is rotated to a position facilitating the clamping of the upper copper bar 1, so that the upper copper bar 1 is clamped in the first clamping block 31 and is limited by the first protrusion 311, thereby completing the fixed connection of the upper copper bar 1 and the lower copper bar 2.

[0035] In the embodiment, as shown in Figure 5 and 6 The mushroom female head 52 includes a receiving groove 521 accommodating the protruding part 512, and the receiving groove 521 is approximately a hollow hemispherical structure. After the mushroom male head 51 is inserted into the mushroom female head 52 after being compressed, the protruding part 512 is expanded outward under the action of the elastic force, so that the shapes of the first U-shaped groove 513 and the second U-shaped groove 514 are restored to U shapes, and the outer surface of the protruding part 512 abuts on the inner wall of the receiving groove 521, thereby enabling the upper and lower end plates to be fixedly clamped together.

[0036] In the embodiment, as shown in Figure 4 The mushroom male head 51 and the mushroom female head 52 are fixed at the middle positions of the upper end plate 3 and the lower end plate 4, respectively, by welding, which facilitates the fixation of the mushroom male head 51 and the mushroom female head 52.

[0037] The embodiment also provides a kind of energy storage container, including the fixed structure of the parallel copper bar described above.

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

Claims

1. A fixed structure for parallel copper busbars, wherein an upper copper busbar (1) and a lower copper busbar (2) are arranged parallel to each other, the upper copper busbar (1) is used to connect the positive terminal (71) of the battery module and the manual maintenance switch (8), and the lower copper busbar (2) is used to connect the negative terminal (72) of the battery module and the manual maintenance switch (8), characterized in that: The fixing structure (9) includes an upper end plate (3) for snapping and fixing the upper copper busbar (1), a lower end plate (4) for snapping and fixing the lower copper busbar (2), and a snapping structure (5) for connecting the upper end plate (3) and the lower end plate (4). The upper end plate (3) can be rotated horizontally relative to the lower end plate (4) at any angle through the snapping structure (5).

2. The fixing structure for a parallel copper busbar according to claim 1, characterized in that: The upper plate (3) is provided with a plurality of opposing first latching blocks (31), and the top of the first latching block (31) is provided with a first protrusion (311) for limiting the upper copper busbar (1).

3. The fixing structure for a parallel copper busbar according to claim 2, characterized in that: The cross-sectional shape of the first protrusion (311) is a right triangle.

4. The fixing structure for a parallel copper busbar according to claim 1, characterized in that: The snap-fit ​​structure (5) is a mushroom head snap-fit ​​structure, including a mushroom male head (51) set on the upper end plate (3) and a mushroom female head (52) set on the lower end plate (4). The mushroom male head (51) includes a cylindrical middle part (511) and a hemispherical protrusion (512). The middle part (511) and the protrusion (512) are coaxially arranged. The middle part (511) is fixedly set on the surface of the upper end plate (3). The radius of the bottom surface of the protrusion (512) is greater than the radius of the middle part (511).

5. The fixing structure for a parallel copper busbar according to claim 4, characterized in that: The mushroom head (51) has a first U-shaped groove (513) and a second U-shaped groove (514) that are perpendicular to each other. The first U-shaped groove (513) and the second U-shaped groove (514) extend downward into the middle part (511). The lower end plate (4) has a circular hole (42) through which the mushroom head (51) passes. The radius of the circular hole (42) is smaller than the radius of the middle part (511).

6. The fixing structure for a parallel copper busbar according to claim 5, characterized in that: The first U-shaped groove (513) and the second U-shaped groove (514) are both arranged symmetrically on the left and right sides along the axial section of the mushroom head snap-fit ​​structure.

7. The fixing structure for a parallel copper busbar according to claim 1, characterized in that: A double-sided adhesive block (6) is provided between the lower end plate (4) and the lower copper busbar (2).

8. The fixing structure for a parallel copper busbar according to claim 4, characterized in that: The mushroom-shaped head (52) includes a receiving groove (521) for receiving the protrusion (512).

9. The fixing structure for a parallel copper busbar according to claim 4, characterized in that: The male mushroom head (51) and female mushroom head (52) are fixed to the middle positions of the upper end plate (3) and the lower end plate (4) respectively by welding.

10. An energy storage container, comprising a fixed structure of parallel copper busbars as described in any one of claims 1 to 9.

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