CN210142731U

CN210142731U - Female screw thread copper post structure of arranging of stromatolite

Info

Publication number: CN210142731U
Application number: CN201921001058.2U
Authority: CN
Inventors: 袁志豪; 王亮军; 彭乐忠; 胡顺鹏
Original assignee: Sun King Power Electronics Group Ltd
Current assignee: Sun King Power Electronics Group Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-03-13
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a female screw thread copper post structure of arranging of stromatolite, its includes a copper, at least one wears to locate copper post on the copper, and connect every copper post with annular welding between the copper piles tin layer. Be equipped with at least one confession on the copper the locating hole that the copper post one-to-one passed, the copper post includes the contact site of one end butt on the copper, connects in the tip that the contact site is close to the copper and the terminal extension that passes the locating hole, and set up in the annular knurl groove of the circumference outer wall that the contact site is close to copper one end, annular welding pile tin layer set up in annular knurl groove with the copper is close to between the contact site side surface. The utility model provides a female screw thread copper post structure of arranging of stromatolite piles tin department at the copper post welding and increases annular knurling groove, piles tin to annular knurling inslot through the welding, pile tin layer through increase annular welding with welding face between the copper post is with increase overall structure's torsion resistance.

Description

Female screw thread copper post structure of arranging of stromatolite

Technical Field

The utility model belongs to the technical field of the compound female row, especially a female screw thread copper post structure of arranging of stromatolite.

Background

In the composite busbar industry, the lap joint and mounting of the threaded copper columns among various power electronic components and busbars have a very wide and huge effect. Generally, the conventional threaded copper pillar structure is shown in fig. 1 and includes a copper plate and a copper pillar. According to the structure, the small end of the conductive copper column is extruded into the inverted cone through the expansion riveting tool, the inverse cone is firmly attached to the copper plate, the problem that the copper plate is easy to fall off after being compressed due to the fact that the tolerance is too small or the copper plate is extruded and deformed due to the fact that the tolerance is too large is solved, the copper column structure has the defects that the structure is too simple, enough torsion resistance is lacked, expansion riveting tools in different shapes need to be manufactured, the copper plate is easy to crush or scrap due to the fact that the copper plate is not aligned with the tools during operation, frequent maintenance or tool replacement is needed, cost and labor are increased, when the torsion requirement of the threaded copper column is large, the target torsion resistance cannot be achieved on the basis of the conventional process and the conventional threaded copper column structure, other methods or structure modification are sought, and the problem needs to be solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a female screw thread copper post structure of arranging of stromatolite to solve above-mentioned problem.

Female screw thread copper post structure of arranging of stromatolite, it includes a copper, at least one wears to locate copper post on the copper, and connect every copper post with annular welding pile tin layer between the copper. Be equipped with at least one confession on the copper the locating hole that the copper post one-to-one passed, the copper post includes the contact site of one end butt on the copper, connects in the tip that the contact site is close to the copper and the terminal extension that passes the locating hole, and set up in the annular knurl groove of the circumference outer wall that the contact site is close to copper one end, annular welding pile tin layer set up in annular knurl groove with the copper is close to between the contact site side surface.

Furthermore, the middle part of the copper column is provided with a lapping hole penetrating through the contact part and the extension part.

Further, the cross section of the annular welding tin stacking layer is in a chamfer structure or a fillet structure.

Further, the aperture of the positioning hole is smaller than the outer diameter of the contact part and larger than the outer diameter of the extension part.

Further, the annular knurl groove comprises any one of a toothed knurl groove and a reticulate knurl groove.

Further, the length of the extension part is equal to the thickness of the copper plate.

Further, the axis of the extension portion coincides with the axis of the contact portion.

Compared with the prior art, the utility model provides a female screw thread copper post structure of arranging of stromatolite is piled tin through the welding and is connected fixedly, and piles tin department at the copper post welding and increase annular knurling groove, pile tin to annular knurling inslot through the welding, pile tin layer through increase annular welding with the face of weld between the copper post is with increase overall structure's torsion resistance, solves the problem that partial copper post torsion resistance can not reach the requirement to improve female structural performance who arranges.

Drawings

Fig. 1 is a schematic structural diagram of a conventional threaded copper pillar structure of a laminated busbar.

Fig. 2 is the utility model provides a female threaded copper post structure's of arranging of stromatolite structure sketch map.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Please refer to fig. 2, which is a schematic structural diagram of a threaded copper pillar structure of a laminated busbar according to the present invention. The laminated busbar thread copper column structure comprises a copper plate 10, at least one copper column 20 penetrating through the copper plate 10, and an annular welding tin stacking layer 30 connecting each copper column 20 and the copper plate 10. It is conceivable that at least one of the copper columns 20 should be connected to one of the copper slabs 10, one of the copper columns 20 being a connection port on the copper slab 10. In addition, the movable laminated busbar copper pillar structure further includes other electrical connection components and the like, which are well known to those skilled in the art and will not be described in detail herein.

The copper plate 10 is provided with at least one positioning hole 11 through which the copper columns 20 correspondingly penetrate. It is conceivable that the number of the positioning holes 11 formed in the copper plate 10 may be determined according to actual requirements, and the number of the positioning holes 11 corresponds to the number of the copper pillars 20.

The copper column 20 comprises a contact part 21 with one end abutting against the copper plate 10, an extension part 22 connected to the end part of the contact part 21 close to the copper plate 10 and with the tail end penetrating through the positioning hole 11, and an annular knurled groove 23 arranged on the circumferential outer wall of the contact part 21 close to one end of the copper plate 10. The diameter of the positioning hole 11 is smaller than the outer diameter of the contact portion 21 and larger than the outer diameter of the extension portion 22, and the axis of the extension portion 22 coincides with the axis of the contact portion 21. It is conceivable that when the extension portion 22 passes through the positioning hole 11, one end of the contact portion 21 closes the positioning hole 11 and the circumferential edge of the contact portion 21 near one surface of the copper plate 10 abuts against the copper plate 10, thereby forming a preliminary positioning between the copper post 20 and the copper plate 10, and in this embodiment, the outer wall of the extension portion 22 is closely attached to the inner wall of the positioning hole 11. The length of the extension part 22 is equal to the thickness of the copper plate 10, namely, one end of the extension part 22 far away from the contact part 21 is flush with one surface of the copper plate 10 far away from the contact part 21, so that the flatness of the whole structure is ensured, and the assembly of parts is facilitated. The copper column 20 is made of pure copper or copper alloy, the middle of the copper column 20 is provided with a lap joint hole 24 penetrating through the contact portion 21 and the extension portion 22, and the lap joint hole 24 is used for electrically connecting the copper column 20 with the outside. In addition, the annular knurl groove 23 includes any one of a toothed knurl groove and a mesh knurl groove. In the present embodiment, the annular knurl groove 23 is a tooth-shaped knurl groove. It is conceivable that the radial thickness of the contact portion 21 is much greater than the radial thickness of the extension portion 22, and that the annular knurled groove 23 is formed on the contact portion 21 more easily by knurling.

The annular welding tin stacking layer 30 is arranged between the annular knurling groove 23 and the surface of the copper plate 10 close to one side of the contact part 21, and the section of the annular welding tin stacking layer 30 is in any one of a chamfer structure or a fillet structure. It is conceivable that the annular solder mound layer 30 is formed by solder mound tin bonding between the outer wall of the annular knurl groove 23 and the surface of the copper plate 10 on the side close to the contact portion 21, and the bonding surface between the annular solder mound layer 30 and the copper pillar 20 is increased.

The utility model provides a female screw thread copper post structure of arranging of stromatolite is piled tin through the welding and is connected fixedly, and piles tin department at copper post 20 welding and increase annular knurl groove 23, pile tin to annular knurl groove 23 in through the welding, pile tin layer 30 through increase annular welding with the face of weld between the copper post 20 is with increase overall structure's torsion resistance, solves the problem that partial copper post 20 torsion resistance can not reach the requirement to improve female structural performance who arranges.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a female screw thread copper post structure of arranging of stromatolite which characterized in that: the female screw thread copper post structure of arranging of stromatolite includes a copper, and at least one wears to locate copper post on the copper, and connect every the copper post with annular welding between the copper piles tin layer, be equipped with at least one confession on the copper the locating hole that the copper post one-to-one passed, the copper post includes the contact site of an one end butt on the copper, one connect in the tip that the contact site is close to the copper and the terminal extension that passes the locating hole, and set up in the contact site is close to the annular knurl groove of the circumference outer wall of copper one end, annular welding pile tin layer set up in annular knurl groove with the copper is close to between the contact site side surface.

2. The threaded copper pillar structure of a laminated busbar according to claim 1, wherein: and the middle part of the copper column is provided with a lap joint hole penetrating through the contact part and the extension part.

3. The threaded copper pillar structure of a laminated busbar according to claim 1, wherein: the cross section of the annular welding tin stacking layer is in a chamfer structure or a fillet structure.

4. The threaded copper pillar structure of a laminated busbar according to claim 1, wherein: the diameter of the positioning hole is smaller than the outer diameter of the contact part and larger than the outer diameter of the extension part.

5. The threaded copper pillar structure of a laminated busbar according to claim 1, wherein: the annular knurling grooves comprise any one of toothed knurling grooves and reticulate knurling grooves.

6. The threaded copper pillar structure of a laminated busbar according to claim 1, wherein: the length of the extension part is equal to the thickness of the copper plate.

7. The threaded copper pillar structure of a laminated busbar according to claim 1, wherein: the axis of the extension part coincides with the axis of the contact part.