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CN-122000715-A - Board-to-board connector with shielding structure

CN122000715ACN 122000715 ACN122000715 ACN 122000715ACN-122000715-A

Abstract

A board-to-board connector with shielding structure. The board-to-board connector with the shielding structure comprises a first circuit board, a first connecting piece, a buffer conductor, a second circuit board, a second connecting piece and a shielding cover, wherein the first connecting piece is arranged on the first circuit board, the buffer conductor is arranged on the first circuit board and surrounds the first connecting piece, the second circuit board is perpendicular to the first circuit board, a first metal layer is arranged on one side edge of the second circuit board, the second connecting piece is arranged on the second circuit board and is butted with the first connecting piece along a butting direction, the shielding cover is arranged on the second circuit board and surrounds the second connecting piece, when the second connecting piece is butted with the first connecting piece along the butting direction, the side edge of the second circuit board is butted with the buffer conductor, the first metal layer is electrically connected with the buffer conductor, and the shielding cover surrounds the first connecting piece. The first metal layer of the board-to-board connector with the shielding structure provided by the invention can make up the problem that the shielding cover cannot completely shield the connector.

Inventors

  • LIU YINGZHI
  • WANG ZEMIN
  • ZHENG MINGWEI

Assignees

  • 启碁科技股份有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (15)

  1. 1. A board-to-board connector with a shielding structure, the board-to-board connector with a shielding structure comprising: a first circuit board; the first connecting piece is arranged on the first circuit board; The buffer conductor is arranged on the first circuit board and surrounds the first connecting piece; The second circuit board is perpendicular to the first circuit board, and one side of the second circuit board is provided with a first metal layer; A second connecting piece arranged on the second circuit board and butted with the first connecting piece along a butting direction, and The shielding cover is arranged on the second circuit board and surrounds the second connecting piece; When the second connecting piece is abutted to the first connecting piece along the abutting direction, the side edge of the second circuit board abuts against the buffer conductor, so that the first metal layer is electrically connected to the buffer conductor, and the shielding cover surrounds the first connecting piece.
  2. 2. The board-to-board connector with shielding structure of claim 1, wherein the shielding case is electrically connected with the first metal layer and has an opening.
  3. 3. The board-to-board connector with shielding structure of claim 2, wherein the shielding case has a protrusion disposed at an edge of the opening, the protrusion being folded toward an outside of the opening.
  4. 4. The board-to-board connector with shielding structure of claim 3, wherein the width of the first metal layer is greater than or equal to the width of the protruding portion.
  5. 5. The board-to-board connector with shielding structure of claim 3, wherein the protrusion is cut to be aligned with the side of the second circuit board.
  6. 6. The board-to-board connector with shielding structure of claim 3, wherein the protruding portion extends along the periphery of the opening and abuts against an upper surface of the buffer conductor when the shielding cover surrounds the first connector.
  7. 7. The board-to-board connector with shielding structure of claim 6, wherein when the protruding portion abuts against the upper surface of the buffer conductor, a projection area of the protruding portion projected onto the upper surface does not exceed the upper surface.
  8. 8. The board-to-board connector with shielding structure of claim 1, wherein the second circuit board has a first surface and a second surface on opposite sides, the side is connected between the first surface and the second surface, the first metal layer includes a first metal extension and a second metal extension, the first metal extension extends to the first surface, and the second metal extension extends to the second surface.
  9. 9. The board-to-board connector with shielding structure of claim 8, wherein when the second connector is mated with the first connector along the mating direction, the second circuit board presses down the buffer conductor through the side edge, so that the buffer conductor is deformed by extrusion to extend to the first surface and the second surface, and further covers the first metal extension portion and the second metal extension portion.
  10. 10. The board-to-board connector with shielding structure of claim 8, wherein the width of the first metal extension and the width of the second metal extension are each between 0.5mm and 1mm.
  11. 11. The board-to-board connector with shielding structure of claim 10, wherein the second circuit board further comprises a second metal layer, the second metal layer is connected to the first metal layer, and the shielding case is soldered on the second metal layer.
  12. 12. The board-to-board connector with shielding structure of claim 11, wherein the second metal layer surrounds the second connection piece, the second metal layer has two end portions, and a solder mask is arranged between the surface of each end portion and the surface of the first metal layer.
  13. 13. The board-to-board connector with shielding structure of claim 11, wherein the second metal layer surrounds the second connection piece, the second metal layer has two end portions, and a solder mask is arranged between a surface of each end portion and a surface of the first metal extension portion.
  14. 14. The board-to-board connector with shielding structure of claim 13, wherein the solder resist layer has a width of more than 0.1mm.
  15. 15. The board-to-board connector with shielding structure of claim 1, wherein a metal ground layer is disposed on a surface of the first circuit board, the metal ground layer surrounds the first connector, and the buffer conductor is disposed on the metal ground layer.

Description

Board-to-board connector with shielding structure Technical Field The present invention relates to a board-to-board connector, and more particularly, to a board-to-board connector with a shielding structure. Background At present, the board-to-board connector (board to board connector) is widely used in the new generationAnd 5G product design. The two PCBs can be connected by a board-to-board connector (or BTB connector) for RF signal transmission. RF signals are susceptible to interference from extraneous signals during transmission between BTB connectors. In the prior art, the BTB connector is shielded by the shielding frame to improve the signal interference problem. However, for certain BTB connectors, such as vertically docked BTB connectors, the shield frame cannot cover each face of the connector. For example, one side of the connector connected with the circuit board cannot be shielded by the shielding frame, so that a notch of signal shielding is formed. Therefore, how to overcome the above-mentioned drawbacks by improving the structural design has become one of the important problems to be solved in this field. Accordingly, there is a need to provide a board-to-board connector with a shielding structure to solve the above-mentioned problems. Disclosure of Invention The invention aims to solve the technical problem of providing a board-to-board connector with a shielding structure aiming at the defects of the prior art so as to solve the technical problem that the prior shielding frame cannot completely cover the connector to cause a signal shielding notch. In order to solve the above-mentioned technical problems, one of the technical solutions adopted in the present invention is to provide a board-to-board connector with a shielding structure, which includes a first circuit board, a first connector, a buffer conductor, a second circuit board, a second connector and a shielding cover. The first connecting piece is arranged on the first circuit board. The buffer conductor is arranged on the first circuit board and surrounds the first connecting piece. The second circuit board is perpendicular to the first circuit board, and one side edge of the second circuit board is provided with a first metal layer. The second connecting piece is arranged on the second circuit board and is butted with the first connecting piece along a butting direction. The shielding cover is arranged on the second circuit board and surrounds the second connecting piece. When the second connecting piece is abutted to the first connecting piece along the abutting direction, the side edge of the second circuit board abuts against the buffer conductor, so that the first metal layer is electrically connected to the buffer conductor, and the shielding cover surrounds the first connecting piece. The board-to-board connector with the shielding structure has the advantages that the first metal layer is arranged on the side edge of the second circuit board and matched with the shielding cover, so that when the first connecting piece is in butt joint with the second connecting piece, the first metal layer is electrically connected with the buffering conductor, and the shielding cover surrounds the first connecting piece. Therefore, the first metal layer can make up the problem that the shielding cover cannot completely shield the connector. The first metal layer and the shielding cover can jointly enclose the connector to completely shield external electromagnetic interference. For a further understanding of the nature and the technical aspects of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for purposes of reference only and are not intended to limit the invention. Drawings Fig. 1 is a schematic diagram of a board-to-board connector according to an embodiment of the invention. Fig. 2 is an exploded view of a board-to-board connector according to an embodiment of the present invention. Fig. 3 is an exploded view of the first connector and the buffer conductor according to the embodiment of the invention. Fig. 4 is a schematic top view of the first connector and the buffer conductor according to the embodiment of the invention. Fig. 5 is a schematic diagram of a second connector and a shielding case according to an embodiment of the invention. Fig. 6 is an exploded view of the second connector and the shielding case according to the embodiment of the invention. Fig. 7 is a schematic top view of a second connector and a shielding case according to an embodiment of the invention. Fig. 8 is a schematic bottom view of a second circuit board according to an embodiment of the invention. Fig. 9 is a schematic side view of a second circuit board according to an embodiment of the invention. Fig. 10 is a schematic cross-sectional view of the X-X cross-section of fig. 1. Description of main reference numerals: d board-to-board connector M1 firs