Novel aluminum bar

Abstract

The utility model provides a novel aluminum bar, which comprises a first aluminum bar assembly and a second aluminum bar assembly, and is characterized in that the first aluminum bar assembly comprises a conductive aluminum bar, a positioning column, an arc-shaped groove, an arc-shaped limiting sheet and a connecting groove; the connecting groove is formed in one side of the upper surface of the conductive aluminum bar, and the bottom ends of the positioning columns are fixedly connected to the inner bottom wall of the connecting groove at equal intervals. According to the utility model, the conductive aluminum bar is connected with the connecting aluminum bar, the contact area can be increased through the arc-shaped attaching sheet, then the connecting aluminum bar is punched, the positioning column has a riveting effect on the connecting aluminum bar, and then the connecting aluminum bar is tightly attached to the conductive aluminum bar under the combined action of the arc-shaped limiting sheet and the positioning column, so that the connecting aluminum bar is firmly connected with the conductive aluminum bar. Due to the fact that the gap between the connecting aluminum bar and the conductive aluminum bar is reduced when the connecting aluminum bar and the conductive aluminum bar are welded, the contact area is increased, the contact resistance is reduced, normal transmission of current is guaranteed, and the conductive performance of the aluminum bar is improved.

Description

Technical Field

[0001] The utility model relates to an aluminum bar, in particular to a new type of aluminum bar, and belongs to the technical field of aluminum bars. Background Art

[0002] The aluminum busbar on the new energy battery is an important conductive structural part, mainly used to connect battery cells and transmit current. As a connector for battery cells, the aluminum busbar can connect battery cells into a battery pack in series or parallel. It enables battery cells to work together and transmit electrical energy to the entire battery pack by providing a current path. In addition, the aluminum busbar can also perform the function of heat dissipation, effectively dissipating the heat generated by the battery to ensure the stable operation of the battery pack.

[0003] Aluminum busbars are usually made of aluminum alloy materials with high electrical conductivity and excellent heat dissipation performance. Aluminum alloy has good electrical conductivity and thermal conductivity, and can effectively transfer current and dissipate heat. With the rapid development of new energy technologies, the requirements for aluminum busbars are gradually increasing. While ensuring the cost, the product quality must also be guaranteed;

[0004] For example, the technology disclosed in CN202220910774.8 "Positive and negative aluminum bars of battery modules" reduces the manufacturing cost by dividing the aluminum bar into two parts. The connecting aluminum bar is used to fix in the battery module, and the conductive aluminum bar is used to connect with the battery cell. Before welding the connecting aluminum bar and the conductive aluminum bar, a riveted nut is embedded inside the connecting aluminum bar to avoid uneven contact surface and deformation caused by the force on the aluminum bar, thereby improving the reliability of the aluminum bar. However, the following technical problems still exist:

[0005] The aluminum busbar is divided into two parts. Although it can reduce costs, it needs to be welded when used. During welding, there will be a certain gap between the connecting aluminum busbar and the conductive aluminum busbar. The gap will cause the contact area to be reduced and the contact resistance to be increased, thereby affecting the transmission of current and reducing the conductivity of the aluminum busbar.

[0006] Therefore, a new type of aluminum bar is proposed. Utility Model Content

[0007] In view of this, the utility model provides a new type of aluminum bar to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0008] The technical solution of the embodiment of the utility model is implemented as follows: a new aluminum bar, including a first aluminum bar assembly and a second aluminum bar assembly, wherein the first aluminum bar assembly includes a conductive aluminum bar, a positioning column, an arc groove, an arc-shaped limit plate and a connecting groove;

[0009] The connecting groove is opened on one side of the upper surface of the conductive aluminum bar, the bottom end of the positioning column is equidistantly fixedly connected to the inner bottom wall of the connecting groove, the arc groove is opened on the inner bottom wall of the connecting groove, the bottom end of the arc-shaped limiting piece is equidistantly fixedly connected to the inner bottom wall of the connecting groove, and the positioning column and the arc-shaped limiting piece are staggered;

[0010] The second aluminum bar assembly includes a connecting aluminum bar and an arc-shaped bonding sheet;

[0011] The upper surface of the arc-shaped bonding sheet is fixedly connected to the lower surface of the connecting aluminum bar, and the connecting aluminum bar is located above the conductive aluminum bar.

[0012] Further preferably, one side of the lower surface of the connecting aluminum bar is attached to the inner bottom wall of the connecting groove, and the outer side wall of the arc-shaped attaching sheet is attached to the inner side wall of the arc-shaped groove.

[0013] Further preferably, the second aluminum row assembly further includes a through slot, two protruding ends and a limiting through hole;

[0014] The through grooves are equidistantly arranged on one side of the upper surface of the connecting aluminum bar, and the two protruding ends are symmetrically fixedly connected to the other side of the connecting aluminum bar.

[0015] Further preferably, the limiting through holes are equidistantly arranged on one side of the upper surface of the connecting aluminum bar, and the limiting through holes and the through grooves are arranged alternately.

[0016] Further preferably, the first aluminum bar assembly further includes two screw holes, an avoidance groove and a punching groove;

[0017] The two screw holes are symmetrically opened on the upper surface of the conductive aluminum bar, the avoidance grooves are equidistantly opened on the upper surface of the conductive aluminum bar, and the punching grooves are equidistantly opened on the inner bottom wall of the connecting groove.

[0018] Further preferably, a riveted nut is installed inside the screw hole, the position of the avoidance groove corresponds to the position of the arc-shaped limiting piece, and the position of the punching groove corresponds to the position of the arc-shaped limiting piece.

[0019] Further preferably, the outer side wall of the positioning column is slidably connected to the inner side wall of the limiting through hole.

[0020] Further preferably, the arc-shaped limiting piece is located inside the through groove.

[0021] Since the embodiment of the utility model adopts the above technical scheme, it has the following advantages: the utility model connects the conductive aluminum bar with the connecting aluminum bar, the contact area can be increased by the arc-shaped fitting sheet, and then the connecting aluminum bar is punched. After punching, the arc-shaped limiting sheet is pressed into the avoidance groove, the arc-shaped limiting sheet presses the connecting aluminum bar, and the positioning column has a riveting effect on the connecting aluminum bar. Then, under the joint action of the arc-shaped limiting sheet and the positioning column, the connecting aluminum bar and the conductive aluminum bar are tightly fitted. At this time, the connecting aluminum bar and the conductive aluminum bar can be welded. Since the gap between the connecting aluminum bar and the conductive aluminum bar is reduced during welding, the contact area is increased, the contact resistance is reduced, the normal transmission of current is ensured, and the conductive performance of the aluminum bar is improved.

[0022] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a structural diagram of the first aluminum row assembly of the utility model;

[0026] Figure 3 This is a structural diagram of the second aluminum row assembly of the utility model;

[0027] Figure 4 It is a schematic diagram of connecting the connecting aluminum bar and the conductive aluminum bar of the utility model.

[0028] Figure numerals: 101, first aluminum bar assembly; 11, conductive aluminum bar; 12, screw hole; 13, avoidance groove; 14, positioning column; 15, punching groove; 16, arc groove; 17, arc-shaped limiting plate; 18, connecting groove; 19, riveted nut; 301, second aluminum bar assembly; 31, connecting aluminum bar; 32, through groove; 33, protruding end; 34, arc-shaped fitting plate; 35, limiting through hole. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 As shown in FIG. 4 , the embodiment of the utility model provides a new aluminum bar, including a first aluminum bar assembly 101 and a second aluminum bar assembly 301. The first aluminum bar assembly 101 includes a conductive aluminum bar 11, a positioning column 14, an arc groove 16, an arc-shaped limiting piece 17 and a connecting groove 18;

[0032] The connection groove 18 is provided on one side of the upper surface of the conductive aluminum bar 11, the bottom end of the positioning column 14 is equidistantly fixedly connected to the inner bottom wall of the connection groove 18, the arc groove 16 is provided on the inner bottom wall of the connection groove 18, the bottom end of the arc-shaped limiting piece 17 is equidistantly fixedly connected to the inner bottom wall of the connection groove 18, and the positioning column 14 and the arc-shaped limiting piece 17 are staggered.

[0033] The second aluminum bar assembly 301 includes a connecting aluminum bar 31 and an arc-shaped bonding sheet 34;

[0034] The upper surface of the arc-shaped bonding sheet 34 is fixedly connected to the lower surface of the connecting aluminum bar 31 , and the connecting aluminum bar 31 is located above the conductive aluminum bar 11 .

[0035] In one embodiment, one side of the lower surface of the connecting aluminum bar 31 is bonded to the inner bottom wall of the connecting groove 18, and the outer wall of the arc-shaped bonding sheet 34 is bonded to the inner wall of the arc-shaped groove 16. Through the cooperation of the arc-shaped bonding sheet 34 and the arc-shaped groove 16, the contact area between the connecting aluminum bar 31 and the conductive aluminum bar 11 can be increased, thereby improving the conductive effect.

[0036] In one embodiment, the second aluminum row assembly 301 further includes a through slot 32, two protruding ends 33 and a limiting through hole 35;

[0037] The through grooves 32 are equidistantly arranged on one side of the upper surface of the connecting aluminum bar 31, and the two protruding ends 33 are symmetrically fixedly connected to the other side of the connecting aluminum bar 31. The limiting through holes 35 are equidistantly arranged on one side of the upper surface of the connecting aluminum bar 31. The limiting through holes 35 and the through grooves 32 are staggered. The protruding ends 33 are used to connect the connecting aluminum bar 31 with external battery cells. The protruding ends 33, the connecting aluminum bar 31 and the arc-shaped bonding sheet 34 are an integrated stamping structure.

[0038] In one embodiment, the first aluminum bar assembly 101 further includes two screw holes 12, an avoidance groove 13 and a punching groove 15;

[0039] Two screw holes 12 are symmetrically opened on the upper surface of the conductive aluminum row 11, the avoidance groove 13 is equidistantly opened on the upper surface of the conductive aluminum row 11, and the punching groove 15 is equidistantly opened on the inner bottom wall of the connecting groove 18. A riveted nut 19 is installed inside the screw hole 12. The position of the avoidance groove 13 corresponds to the position of the arc-shaped limit plate 17, and the position of the punching groove 15 corresponds to the position of the arc-shaped limit plate 17. The outer wall of the positioning column 14 is slidably connected to the inner wall of the limiting through hole 35. The arc-shaped limit plate 17 is located inside the through groove 32, and the positioning column 14 can play a positioning effect. During the stamping operation, the position of the connecting aluminum row 31 and the conductive aluminum row 11 will not move. After stamping, the arc-shaped limit plate 17 can press the connecting aluminum row 31, so that the connecting aluminum row 31 and the conductive aluminum row 11 are closely fitted to reduce the gap and improve the conductive effect. The arc-shaped limit plate 17 and the conductive aluminum row 11 are an integrated stamping structure.

[0040] When the utility model is working, the conductive aluminum row 11 is connected to the connecting aluminum row 31, the arc-shaped limiting piece 17 is aligned with the through groove 32, the positioning column 14 is aligned with the limiting through hole 35, and the positioning column 14 is inserted into the limiting through hole 35. At this time, the connecting aluminum row 31 is attached to the inner bottom wall of the connecting groove 18, the arc-shaped limiting piece 17 enters into the through groove 32, and the arc-shaped bonding piece 34 is attached to the inner side wall of the arc groove 16. Then the conductive aluminum row 11 is fixed, and the connecting aluminum row 31 is stamped. After stamping, the arc-shaped limiting piece 17 and the positioning column 14 are The arc-shaped limit piece 17 is pressed into the avoidance groove 13, and the positioning column 14 has a riveting effect on the connecting aluminum bar 31. Under the joint action of the arc-shaped limit piece 17 and the positioning column 14, the connecting aluminum bar 31 and the conductive aluminum bar 11 are tightly fitted. At this time, the connecting aluminum bar 31 and the conductive aluminum bar 11 can be welded. Since the gap between the connecting aluminum bar 31 and the conductive aluminum bar 11 is reduced during welding, the contact area is increased, the contact resistance is reduced, the normal transmission of the current is guaranteed, and the conductive performance of the aluminum bar is improved.

[0041] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A novel aluminum bar, comprising a first aluminum bar assembly (101) and a second aluminum bar assembly (301), characterized in that: The first aluminum bar assembly (101) comprises a conductive aluminum bar (11), a positioning column (14), an arc-shaped groove (16), an arc-shaped limiting piece (17) and a connecting groove (18); The connecting groove (18) is provided on one side of the upper surface of the conductive aluminum bar (11); the bottom end of the positioning column (14) is equidistantly fixedly connected to the inner bottom wall of the connecting groove (18); the arc-shaped groove (16) is provided on the inner bottom wall of the connecting groove (18); the bottom end of the arc-shaped limiting piece (17) is equidistantly fixedly connected to the inner bottom wall of the connecting groove (18); the positioning column (14) and the arc-shaped limiting piece (17) are arranged in a staggered manner; The second aluminum bar assembly (301) comprises a connecting aluminum bar (31) and an arc-shaped bonding sheet (34); The upper surface of the arc-shaped bonding sheet (34) is fixedly connected to the lower surface of the connecting aluminum bar (31), and the connecting aluminum bar (31) is located above the conductive aluminum bar (11).

2. A novel aluminum bar according to claim 1, characterized in that: One side of the lower surface of the connecting aluminum bar (31) is bonded to the inner bottom wall of the connecting groove (18), and the outer side wall of the arc-shaped bonding sheet (34) is bonded to the inner side wall of the arc-shaped groove (16).

3. The novel aluminum bar according to claim 1 is characterized in that: The second aluminum row assembly (301) further comprises a through slot (32), two protruding ends (33) and a limiting through hole (35); The through grooves (32) are equidistantly arranged on one side of the upper surface of the connecting aluminum bar (31), and the two protruding ends (33) are symmetrically fixedly connected to the other side of the connecting aluminum bar (31).

4. A novel aluminum bar according to claim 3, characterized in that: The limiting through holes (35) are equidistantly arranged on one side of the upper surface of the connecting aluminum bar (31), and the limiting through holes (35) and the through grooves (32) are arranged in a staggered manner.

5. The novel aluminum bar according to claim 1 is characterized in that: The first aluminum bar assembly (101) further comprises two screw holes (12), an avoidance groove (13) and a punching groove (15); The two screw holes (12) are symmetrically opened on the upper surface of the conductive aluminum bar (11), the avoidance grooves (13) are equidistantly opened on the upper surface of the conductive aluminum bar (11), and the punching grooves (15) are equidistantly opened on the inner bottom wall of the connecting groove (18).

6. A novel aluminum bar according to claim 5, characterized in that: A riveting nut (19) is installed inside the screw hole (12), the position of the avoidance groove (13) corresponds to the position of the arc-shaped limiting piece (17), and the position of the punching groove (15) corresponds to the position of the arc-shaped limiting piece (17).

7. The novel aluminum bar according to claim 4 is characterized in that: The outer side wall of the positioning column (14) is slidably connected to the inner side wall of the limiting through hole (35).

8. The novel aluminum bar according to claim 3 is characterized in that: The arc-shaped limiting piece (17) is located inside the through groove (32).

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