Laminated riveted copper bar structure

Abstract

The utility model relates to a laminated riveting copper bar structure, which comprises an upper layer copper bar and a lower layer copper bar, the upper layer copper bar and the lower layer copper bar are bent for multiple times, each horizontal plane of the upper layer copper bar is provided with a plurality of counter bores, each horizontal plane of the lower layer copper bar is provided with a plurality of reverse counter bores, and the counter bores are arranged in the reverse counter bores. The left end and the right end of the upper copper bar and the left end and the right end of the lower copper bar are each provided with a through hole, and the upper copper bar and the lower copper bar are tightly attached through riveting. The beneficial effects of the utility model are that the upper layer copper bar and the lower layer copper bar are tightly attached through riveting, the extension of the copper bar structure in the width and thickness directions is reduced, the occupied space of the copper bar is smaller, the current-carrying cross section is larger, the upper layer copper bar and the lower layer copper bar are bent for multiple times, gaps are arranged at the bent parts, the assembly interference is avoided, the bent parts are provided with smaller inner fillets, and the service life of the copper bar is prolonged. The bending position of the outer fillet is prevented from cracking in the bending process, and the performance and the quality of the product are improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, and more specifically to a laminated riveted copper busbar structure. Background Art

[0002] Copper busbar is a high-current conductive product, suitable for electrical engineering projects such as high and low voltage electrical appliances, switch contacts, power distribution equipment, bus ducts, etc. Electrical copper busbars have the advantages of low resistivity and large bendability. The copper busbar structure of the existing technology has a large extension in the width direction, and the copper busbar occupies a large space, which is easily punctured by other high-voltage conductors or high-voltage ground conductors; it has a large extension in the thickness direction, and the copper busbar is prone to cracking at the bend during the bending process. When copper busbars are overlapped inside high-power devices, the internal copper busbar heats up seriously due to the large current and the small current-carrying cross-section of the copper busbar. The conductive performance of the copper busbar and the performance of connecting electrical equipment are unstable, which affects the performance of the product and increases the subsequent maintenance cost of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects of the prior art, a laminated riveted copper busbar structure is proposed.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a stacked riveted copper bar structure is proposed, comprising: an upper copper bar and a lower copper bar, the upper copper bar and the lower copper bar are bent for multiple times, each horizontal plane of the upper copper bar is provided with a plurality of countersunk holes, each horizontal plane of the lower copper bar is provided with a plurality of reverse countersunk holes, a through hole is respectively provided at the left and right ends of the upper copper bar and the lower copper bar, and the upper copper bar and the lower copper bar are tightly fitted by riveting.

[0005] In some embodiments, the upper copper busbar and the lower copper busbar are bent multiple times, and the bending portions have smaller inner fillets.

[0006] In some embodiments, a gap is provided between the upper copper busbar and the lower copper busbar at a bend.

[0007] In some embodiments, the upper copper bar and the lower copper bar are flush at left and right ends, the width of the upper copper bar is equal to the width of the lower copper bar, and the thickness of the upper copper bar is equal to the thickness of the lower copper bar.

[0008] In some embodiments, each horizontal plane of the upper copper bar is provided with two countersunk holes, and each horizontal plane of the lower copper bar is provided with two reverse countersunk holes. The upper copper bar and the lower copper bar are riveted and connected by copper rivets through the countersunk holes and the reverse countersunk holes.

[0009] In some embodiments, the through hole includes: a first left through hole and a first right through hole, a second left through hole and a second right through hole, the radius of the first left through hole is smaller than the radius of the second left through hole, and the radius of the first right through hole is smaller than the radius of the second right through hole.

[0010] In some embodiments, a rivet nut is provided below the second left through hole, and the upper copper busbar and the lower copper busbar are fixedly connected to the rivet nut by fastening screws penetrating the first left through hole and the second left through hole.

[0011] In some embodiments, the upper copper busbar and the lower copper busbar are fixedly connected to the internal structure by fastening screws penetrating the first right through hole and the second right through hole.

[0012] The implementation of the stacked riveted copper busbar structure of the utility model has the following beneficial effects: the upper copper busbar and the lower copper busbar are tightly fitted by riveting, which reduces the extension of the copper busbar structure in the width and thickness directions, makes the copper busbar occupy a smaller space and has a larger current-carrying cross-section; the upper copper busbar and the lower copper busbar are bent multiple times, and gaps are provided at the bends to avoid assembly interference; the bends have smaller inner fillets to avoid cracking at the outer fillet bends during the bending process, thereby improving product performance and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the stacked riveted copper busbar structure of the utility model;

[0014] Figure 2 It is a top view of the stacked riveted copper busbar structure of the utility model;

[0015] Figure 3 yes Figure 2 AA section view;

[0016] Figure 4 It is a three-dimensional diagram of the stacked riveted copper busbar structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the exploded structure of the utility model.

[0018] Description of reference numerals:

[0019] Upper copper busbar 1, lower copper busbar 2, countersunk hole 11, reverse countersunk hole 21, rivet nut 22, through hole 3, first left through hole 31, first right through hole 32, second left through hole 33, second right through hole 34, fastening screw 4, gap 5, internal structure 6, external cable structure 7, copper rivet 8. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 5 The stacked riveted copper bar structure of the utility model is shown, comprising: an upper copper bar 1 and a lower copper bar 2, wherein the upper copper bar 1 and the lower copper bar 2 are bent for many times, each horizontal plane of the upper copper bar 1 is provided with two countersunk holes 11, each horizontal plane of the lower copper bar 2 is provided with two reverse countersunk holes 21, and the central axis of the countersunk holes 11 of the upper copper bar 1 and the reverse countersunk holes 21 of the lower copper bar 2 are the same. A through hole 3 is respectively provided at the left and right ends of the upper copper bar 1 and the lower copper bar 2, and the through hole 3 includes: a first left through hole 31 and a first right through hole 32, a second left through hole 33 and a second right through hole 34. The central axes of the first left through hole 31 and the second left through hole 33 are the same, and the central axes of the first right through hole 32 and the second right through hole 34 are the same. The upper copper bar 1 and the lower copper bar 2 are stacked in a stacked manner at the countersunk holes 11 of the upper copper bar 1 and the reverse countersunk holes 21 of the lower copper bar 2 with copper rivets 8, so that the upper copper bar 1 and the lower copper bar 2 can fit tightly to prevent deviation and warping, reduce the space occupied by the copper bar, and improve product performance.

[0022] Furthermore, in some embodiments, the upper copper busbar 1 and the lower copper busbar 2 are bent multiple times, and the bending parts have smaller inner fillets, which avoids cracking at the outer fillets during the bending process, reduces the damage of the copper busbar, improves the performance of the product, and reduces the cost of subsequent maintenance of the product.

[0023] Furthermore, in some embodiments, a gap 5 is provided at the bending portion of the upper copper busbar 1 and the lower copper busbar 2, so that assembly interference caused by the bending dimension tolerance of the upper copper busbar 1 and the lower copper busbar 2 can be avoided during the bending process, thereby making the performance of the copper busbar connecting the electrical equipment more stable.

[0024] Furthermore, in some embodiments, the left and right ends of the upper copper bar 1 and the lower copper bar 2 are flush, the width of the upper copper bar 1 is equal to the width of the lower copper bar 2, and the thickness of the upper copper bar 1 is equal to the thickness of the lower copper bar 2. The overall width of the upper copper bar 1 is greater than the overall thickness of the stacked upper copper bar 1 and the lower copper bar 2, which increases the current-carrying cross-section of the copper bar under the same current-carrying capacity, prevents high-voltage breakdown, and increases the cost of the copper bar.

[0025] Further, in some embodiments, the upper copper bar 1 and the lower copper bar 2 are connected by a copper rivet 8. The copper rivet 8 penetrates the reverse countersunk hole 21 of the lower copper bar 2 and the countersunk hole 11 of the upper copper bar 1 from bottom to top, and the copper rivet 8 is punched from above to deform the copper rivet 8, so that the upper copper bar 1 and the lower copper bar 2 and the copper rivet 8 are fastened together.

[0026] Furthermore, in some embodiments, the radius of the first left through hole 31 is smaller than the radius of the second left through hole 33, and the radius of the first right through hole 32 is smaller than the radius of the second right through hole 31, so that the fastening screw 4 will not be stuck and difficult to pass through due to deviation when passing through the first left through hole 31, the second left through hole 33 and the first right through hole 32, the second right through hole 34.

[0027] Furthermore, in some embodiments, a rivet nut 22 is provided below the second left through hole 33, and the fastening screw 4 passes through the first left through hole 31 and the second left through hole 33 and is fixedly connected to the rivet nut 22, so that the upper copper bus 1 and the lower copper bus 2 are more closely connected to the external cable structure 7, and are more firmly connected without causing poor contact.

[0028] Furthermore, in some embodiments, the central axes of the first right through hole 32 and the second right through hole 34 are the same, and the fastening screws 4 pass through the first right through hole 32 and the second right through hole 34, so that the upper copper busbar 1 and the lower copper busbar 2 are connected to the internal structure 6 of the electrical equipment more conveniently and firmly.

[0029] The implementation of the stacked riveted copper busbar structure of the utility model has the following beneficial effects: the upper copper busbar and the lower copper busbar are tightly fitted by riveting, which reduces the extension of the copper busbar structure in the width and thickness directions, makes the copper busbar occupy a smaller space and has a larger current-carrying cross-section; the upper copper busbar and the lower copper busbar are bent multiple times, and gaps are provided at the bends to avoid assembly interference; the bends have smaller inner fillets to avoid cracking at the outer fillet bends during the bending process, thereby improving product performance and product quality.

[0030] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot limit the protection scope of the utility model. All equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

[0031] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A stacked riveted copper busbar structure, characterized in that: include: The upper copper bar and the lower copper bar are bent for many times, each horizontal plane of the upper copper bar is provided with a plurality of countersunk holes, each horizontal plane of the lower copper bar is provided with a plurality of reverse countersunk holes, a through hole is respectively provided at the left and right ends of the upper copper bar and the lower copper bar, and the upper copper bar and the lower copper bar are tightly fitted by riveting.

2. The stacked riveted copper busbar structure according to claim 1, characterized in that: The upper copper busbar and the lower copper busbar are bent for multiple times, and the bending parts have smaller inner fillets.

3. The stacked riveted copper busbar structure according to claim 2 is characterized in that: The upper copper busbar and the lower copper busbar are provided with a gap at the bending position.

4. The stacked riveted copper busbar structure according to claim 3 is characterized in that: The left and right ends of the upper copper bar and the lower copper bar are flush, the width of the upper copper bar is equal to the width of the lower copper bar, and the thickness of the upper copper bar is equal to the thickness of the lower copper bar.

5. The stacked riveted copper busbar structure according to claim 4, characterized in that: Each horizontal plane of the upper copper bar is provided with two countersunk holes, and each horizontal plane of the lower copper bar is provided with two reverse countersunk holes. The upper copper bar and the lower copper bar are riveted and connected by copper rivets through the countersunk holes and the reverse countersunk holes.

6. The stacked riveted copper busbar structure according to claim 5, characterized in that: The through holes include: a first left through hole and a first right through hole, a second left through hole and a second right through hole, the radius of the first left through hole is smaller than the radius of the second left through hole, and the radius of the first right through hole is smaller than the radius of the second right through hole.

7. The stacked riveted copper busbar structure according to claim 6, characterized in that: A rivet nut is provided below the second left through hole, and the upper copper busbar and the lower copper busbar are fixedly connected to the rivet nut by fastening screws penetrating the first left through hole and the second left through hole.

8. The stacked riveted copper busbar structure according to claim 7, characterized in that: The upper copper busbar and the lower copper busbar are fixedly connected to the internal structure by fastening screws penetrating the first right through hole and the second right through hole.

Images