CN-224214543-U - Pressing rivet nut and connecting structure for copper bars and aluminum bars

Abstract

The utility model provides a press-riveting nut and a connecting structure for a copper bar and an aluminum bar, comprising a main body part and a flange part encircling the outer wall of the main body part, wherein the flange part is provided with a bearing surface abutted against a plate and a mounting surface abutted against a positioning die, the bearing surface and the mounting surface are provided with height differences, the plate and the positioning die are provided with height differences, a threaded hole penetrating along the axis direction of the threaded hole is formed in the main body part, a riveting part for connecting the plate is formed at one end, close to the bearing surface, of the outer wall of the main body part, and the riveting part comprises a discharging part, a material containing part and a guiding part which are sequentially arranged along the axis direction.

Inventors

• LU HENG
• LAN Runyu

Assignees

• 宾科精密部件(中国)有限公司

Dates

Publication Date

20260508

Application Date

20250519

Claims (6)

1. 1. The press riveting nut for the copper bar and the aluminum bar is characterized by comprising a main body part and a flange part encircling the outer wall of the main body part; The flange part is provided with a bearing surface which is abutted with the plate and a mounting surface which is abutted with the positioning die, and the bearing surface and the mounting surface are provided with height differences, so that the plate and the positioning die are provided with height differences; A main body part, wherein a threaded hole penetrating along the axis direction is formed in the main body part, and a riveting part used for being connected with a plate is formed at one end, close to the bearing surface, of the outer wall of the main body part; The riveting part comprises a discharging part, a material containing part and a guiding part which are sequentially arranged along the axis direction.
2. 2. The clinch nut for use on copper bars, aluminum bars of claim 1, wherein the diameter of the discharge portion is smaller than the diameter of the main body portion, and the discharge portion forms a discharge step with the bearing surface; the outer diameter of the guide part is smaller than that of the discharging part; the diameter of the material containing part gradually increases from the material discharging part to the guide part, and a material containing groove for containing materials flowing due to deformation on the plate is formed between the material containing part and the material discharging part.
3. 3. The clinch nut for use on copper and aluminum bars according to claim 1 or 2, wherein the outer wall of the discharge portion is provided with knurled teeth.
4. 4. The clinch nut of claim 1, wherein the threaded bore has a length greater than 0.8D.
5. 5. A connecting structure, characterized in that the press-riveting nut for copper bars and aluminum bars according to any one of claims 1-4 is adopted, comprising: the plate is provided with a preset mounting hole; a clinch nut riveted with the sheet material, the clinch nut comprising: The flange part is provided with a bearing surface which is abutted with the plate and a mounting surface which is abutted with the positioning die, and the bearing surface and the mounting surface are provided with height differences, so that the plate and the positioning die are provided with height differences; The main body part is internally provided with a threaded hole penetrating along the axis direction of the main body part, one end, close to the bearing surface, of the outer wall of the main body part is provided with a riveting part used for being connected with the mounting hole, and the riveting part comprises a discharging part, a material containing part and a guiding part which are sequentially arranged along the axis direction; The riveting part is arranged in the mounting hole, the plate is abutted to the bearing surface, and part of the plate in the mounting hole deforms under the extrusion action and flows into the containing groove between the containing part and the discharging part through the guiding part.
6. 6. The connection according to claim 5, wherein the plate material is made of pure copper or pure aluminum material.

Description

Pressing rivet nut and connecting structure for copper bars and aluminum bars Technical Field The application belongs to the technical field of fasteners, and particularly relates to a press riveting nut and a connecting structure for copper bars and aluminum bars. Background The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. The press riveting nut is also called as a riveting nut, and is a self-fastening nut applied to a sheet metal or a sheet metal, and has a circular shape, and one end is provided with embossing teeth and a guide groove. The principle is that the embossing teeth are pressed into preset hole positions of the metal plate, in general, the aperture of the preset hole is slightly smaller than that of the embossing teeth of the press-riveting nut, the embossing teeth of the press-riveting nut are extruded into the plate through pressure, plastic deformation is generated on the periphery of the preset hole, and a deformation is extruded into the guide groove, so that the locking effect is generated. When the press-riveting nut in the prior art is applied to a soft metal plate, the press-riveting nut is easy to embed into the plate, imprint and deform the plate, and damage the coating on the surface of the plate. It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present utility model and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the utility model section. Disclosure of utility model The application aims to provide a press riveting nut and a connecting structure for copper bars and aluminum bars, so as to solve the problems. The application provides a press riveting nut for copper bars and aluminum bars, which comprises a main body part and a flange part encircling the outer wall of the main body part; The flange part is provided with a bearing surface which is abutted with the plate and a mounting surface which is abutted with the positioning die, and the bearing surface and the mounting surface are provided with height differences, so that the plate and the positioning die are provided with height differences; A main body part, wherein a threaded hole penetrating along the axis direction is formed in the main body part, and a riveting part used for being connected with a plate is formed at one end, close to the bearing surface, of the outer wall of the main body part; The riveting part comprises a discharging part, a material containing part and a guiding part which are sequentially arranged along the axis direction. Further, in the press riveting nut for the copper bar and the aluminum bar, the diameter of the discharging part is smaller than that of the main body part, and the discharging part and the bearing surface form a discharging step; the outer diameter of the guide part is smaller than that of the discharging part; the diameter of the material containing part gradually increases from the material discharging part to the guide part, and a material containing groove for containing materials flowing due to deformation on the plate is formed between the material containing part and the material discharging part. Further, the press riveting nut for the copper bars and the aluminum bars is characterized in that knurling teeth are arranged on the outer wall of the material discharging part. Further, the length of the threaded hole is larger than 0.8D. The application also provides a connecting structure, which adopts the press riveting nut used on the copper bar and the aluminum bar and comprises the following components: the plate is provided with a preset mounting hole; a clinch nut riveted with the sheet material, the clinch nut comprising: The flange part is provided with a bearing surface which is abutted with the plate and a mounting surface which is abutted with the positioning die, and the bearing surface and the mounting surface are provided with height differences, so that the plate and the positioning die are provided with height differences; The main body part is internally provided with a threaded hole penetrating along the axis direction of the main body part, one end, close to the bearing surface, of the outer wall of the main body part is provided with a riveting part used for being connected with the mounting hole, and the riveting part comprises a discharging part, a material containing part and a guiding part which are sequentially arranged along the axis direction; The riveting part is arranged in the mounting hole, the plate is abutted to the bearing surface, and part of the plate in the mounting hole deforms under the extrusion action and flows into the containing groove between t