Double-sided screw type copper bar

Abstract

The utility model discloses a double-sided screw type copper bar, which comprises a copper bar main body and studs, two fixing round holes are arranged at the bottom of the copper bar main body, the double-sided screw type copper bar is characterized in that the studs comprise a large-specification bolt and a small-specification bolt, the middle parts of the large-specification bolt and the small-specification bolt are fixedly connected with a limiting square column, and the limiting square column is fixedly connected with the copper bar main body. And the copper bar is provided with an insertion square hole matched with the limiting square column. After the stud is installed in the copper bar main body, the small-specification bolt is sleeved with the connecting piece in a rotating mode, then the connecting piece is fixed to the copper bar main body in a welding mode, the stud and the copper bar main body form a whole under the assistance of the connecting piece, and the input end and the output end are made to be located at the same position of the copper bar main body. The input end and the output end on the front and back surfaces of the copper bar main body can be regarded as a plane, thereby compressing the space of the junction box and reducing the volume of the junction box.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack connection accessories, in particular to a double-sided screw-type copper busbar. Background Art

[0002] In order to facilitate customers to connect the terminal to the battery pack, the junction box is often installed directly on the battery rack. The main accessories in the junction box are copper busbars and high-voltage porcelain bottles. Among them, the copper busbar is mostly a multi-hole copper busbar, and the input and output ends are installed at different plane positions.

[0003] When a multi-hole copper busbar is used, since the interface sizes of the input and output ends are inconsistent, this structure results in a relatively large junction box, and the space and partial structure utilization are not high. Utility Model Content

[0004] The utility model aims to solve the problem that the volume of the junction box will be increased when the input and output ends with inconsistent interface sizes are connected by copper bars in the prior art, and proposes the following technical solutions:

[0005] A double-sided screw-type copper busbar comprises: a copper busbar body and stud bolts. Two fixing round holes are arranged at the bottom of the copper busbar body. The stud bolts comprise large-sized bolts and small-sized bolts. The large-sized bolts and the small-sized bolts are fixedly connected with a limiting square column in the middle. The copper busbar is provided with a plug-in square hole matching the limiting square column.

[0006] The stud bolts can make the input end and the output end at the same position of the copper busbar body, and the input end and the output end on the front and back sides of the copper busbar body can be regarded as being on a plane, thereby compressing the junction box space.

[0007] As a preferred embodiment of the above technical solution, the ends of the large-size bolts and the small-size bolts are both sleeved with nuts, and a gasket is provided on one side of the nut.

[0008] The nut is installed on the large-size bolt or the small-size bolt, and the connecting wires at the input end and the output end can be connected to the two ends of the stud bolt.

[0009] As a preferred embodiment of the above technical solution, a connecting piece is provided on one side of the copper busbar body, the connecting piece is threadedly sleeved on the surface of the small-sized bolt, and the connecting piece is fixedly connected to the copper busbar body by welding.

[0010] After the stud bolts are installed into the copper busbar body, the connecting piece is rotated and sleeved onto the small-size bolts, and then the connecting piece is fixed to the copper busbar body by welding. The stud screw and the copper busbar body become a whole with the help of the connecting piece.

[0011] As a preferred embodiment of the above technical solution, plug-in grooves are provided on both sides of the plug-in square hole, and a limiting block is provided inside the plug-in groove, and one side of the limiting block is in contact with the surface of the limiting square column.

[0012] Before installing the stud bolts, a limit block is installed in the insertion slot. One end of the limit block is fixed by friction with the copper busbar body. When the stud bolts are installed, the limit square column squeezes and deforms one end of the limit block. The limit block fits with the surface of the limit block to fix the stud bolt by friction. The stud bolt will not move, making it convenient to install the connecting piece. In addition, because the stud bolts are limited, the stud bolts can be directly welded to the copper busbar body without using a connecting piece.

[0013] The beneficial effects of the utility model are:

[0014] 1. After the stud bolts are installed into the copper busbar body, the connecting piece is rotated and sleeved onto the small-size bolts, and then the connecting piece is fixed to the copper busbar body by welding. The stud bolts and the copper busbar body become a whole with the help of the connecting piece, so that the input end and the output end are at the same position of the copper busbar body, and the input end and the output end on the front and back of the copper busbar body can be regarded as on the plane, thereby compressing the space of the junction box and reducing the volume of the junction box;

[0015] 2. After the limit block is installed into the socket, one end of the limit block is fixed with the copper busbar body by friction. When the stud bolt is installed, the limit square column squeezes and deforms one end of the limit block. The limit block fits the surface of the limit block to fix the stud bolt by friction. The stud bolt will not move, which makes it convenient to install the connecting piece. Moreover, because the stud bolt is limited, the stud bolt can be directly welded to the copper busbar body without using the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0017] Figure 2 Shown is a schematic diagram of the installation of stud bolts in an embodiment;

[0018] Figure 3 Shown is a schematic diagram of the installation of the limit block in the embodiment.

[0019] In the figure: 10, copper busbar body; 11, fixing round hole; 12, plug-in square hole; 20, stud bolt; 21, large-size bolt; 22, small-size bolt; 23, limiting square column; 30, connecting piece; 41, plug-in slot; 42, limiting block; 50, nut; 60, gasket. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings of the specification.

[0021] Example

[0022] Figure 1-Figure 2 In the figure, a double-sided screw-type copper busbar comprises: a copper busbar body 10 and stud bolts 20. Two fixing circular holes 11 are arranged at the bottom of the copper busbar body 10. The stud bolts 20 comprise large-sized bolts 21 and small-sized bolts 22. The large-sized bolts 21 and the small-sized bolts 22 are fixedly connected with a limiting square column 23 in the middle. The copper busbar is provided with a plug-in square hole 12 matching the limiting square column 23.

[0023] The ends of the large-size bolts 21 and the small-size bolts 22 are both sleeved with nuts 50 , and a gasket 60 is provided on one side of the nut 50 .

[0024] The large-sized bolts 21, the small-sized bolts 22 and the middle limiting square column 23 are welded and fixed, and the end of the small-sized bolt 22 is inserted into the plug-in square hole 12. After the limiting square column 23 is inserted into the plug-in square hole 12, the large-sized bolt 21 cannot pass through the square hole, and it fits tightly with the copper busbar. After the copper busbar body 10 is fixed to the junction box through the fixing circular hole 11, the nut 50 is installed on the large-sized bolt 21 or the small-sized bolt 22, and the connecting wires at the input and output ends can be connected to the two ends of the stud bolt 20.

[0025] Figure 1-Figure 2 In the embodiment, a connecting piece 30 is provided on one side of the copper busbar body 10. The connecting piece 30 is threadedly sleeved on the surface of the small-sized bolt 22. The connecting piece 30 is fixedly connected to the copper busbar body 10 by welding.

[0026] After the stud bolts 20 are installed into the copper busbar body 10, the connecting piece 30 is rotated and sleeved on the small-size bolts 22, and then the connecting piece 30 is fixed to the copper busbar body 10 by welding. The stud screw and the copper busbar body 10 become a whole with the assistance of the connecting piece 30, so that the input end and the output end are at the same position of the copper busbar body 10, and the input end and the output end on the front and back sides of the copper busbar body 10 can be regarded as on a plane, thereby compressing the junction box space and reducing the volume of the junction box.

[0027] Figure 2-Figure 3 In the embodiment, both sides of the inserting square hole 12 are provided with inserting grooves 41 , and a limiting block 42 is provided inside the inserting groove 41 , and one side of the limiting block 42 is in contact with the surface of the limiting square column 23 .

[0028] Before installing the stud bolt 20, a limit block 42 is installed in the insertion slot 41. One end of the limit block 42 is fixed to the copper busbar body 10 by friction. When the stud bolt 20 is installed, the limit square column 23 squeezes and deforms one end of the limit block 42. The limit block 42 fits with the surface of the limit block 42 to fix the stud bolt 20 by friction. The stud bolt 20 will not move, making it convenient to install the connecting piece 30. In addition, because the stud bolt 20 is limited, the stud bolt 20 can be directly welded to the copper busbar body 10 without using the connecting piece 30.

[0029] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. Double-sided screw type copper busbar, including: A copper busbar body (10) and stud bolts (20), wherein two fixing circular holes (11) are arranged at the bottom of the copper busbar body (10), characterized in that the stud bolts (20) include large-sized bolts (21) and small-sized bolts (22), the large-sized bolts (21) and the small-sized bolts (22) are fixedly connected with a limiting square column (23) in the middle, and the copper busbar is provided with a plug-in square hole (12) matching the limiting square column (23).

2. The double-sided screw-type copper busbar according to claim 1, characterized in that: The ends of the large-size bolt (21) and the small-size bolt (22) are both sleeved with nuts (50), and a gasket (60) is provided on one side of the nut (50).

3. The double-sided screw-type copper busbar according to claim 1, characterized in that: A connecting piece (30) is provided on one side of the copper busbar body (10), the connecting piece (30) is threadedly sleeved on the surface of a small-size bolt (22), and the connecting piece (30) is fixedly connected to the copper busbar body (10) by welding.

4. The double-sided screw-type copper busbar according to claim 1, characterized in that: Insertion grooves (41) are arranged on both sides of the inserting square hole (12), and a limiting block (42) is arranged inside the inserting groove (41), and one side of the limiting block (42) is in contact with the surface of the limiting square column (23).

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