Search

CN-122000717-A - Connector with a plurality of connectors

CN122000717ACN 122000717 ACN122000717 ACN 122000717ACN-122000717-A

Abstract

In a connector for connecting a flat conductor to a substrate, the isolation characteristics of the connector are improved, and noise reduction is achieved. The connector (1) is provided with a signal terminal, a1 st ground terminal (21), a2 nd ground terminal (31) and a housing (51), wherein the housing (51) is provided with an insertion part (52) for inserting the end part of the flat conductor into the housing (51) from the front of the housing (51), the 1 st ground terminal (21) is respectively arranged on the right and left sides of the signal terminal, the signal terminal and the 1 st ground terminal (21) extend forwards from the rear of the housing (51), the 2 nd ground terminal (31) is arranged on the right side of the 1 st ground terminal (21) on the right side or the left side of the 1 st ground terminal (21), and extends backwards from the front of the housing (51), and the front part of the signal terminal, the front part of the 1 st ground terminal (21) and the rear part of the 2 nd ground terminal (31) are respectively overlapped when the connector (1) is observed from the right side or the left side.

Inventors

  • TSUCHIDA MASAHIRO

Assignees

  • 广濑电机株式会社

Dates

Publication Date
20260508
Application Date
20251024
Priority Date
20241105

Claims (10)

  1. 1. A connector for connecting a flat conductor to a substrate, characterized in that, The connector includes a plurality of terminals and a housing for supporting the plurality of terminals, The housing has an insertion portion for inserting an end portion of the flat conductor into the housing from a front side of the housing, The plurality of terminals includes: a signal terminal extending forward from a rear portion of the housing, the rear portion being connected to a signal terminal connection portion of the substrate, the front portion being in contact with a signal terminal contact portion provided at a lower surface of an end portion of the flat conductor; Two 1 st ground terminals extending forward from the rear portion of the housing and disposed to the right and left of the signal terminals, respectively, the rear portions of the two 1 st ground terminals being connected to the ground terminal connection portion of the substrate, the front portions of the two 1 st ground terminals being in contact with the ground terminal contact portion provided at the lower surface of the end portion of the flat conductor, respectively, and A 2 nd ground terminal extending rearward from a front portion of the housing, disposed right of the 1 st ground terminal disposed right of the signal terminal or left of the 1 st ground terminal disposed left of the signal terminal, the front portion being connected to a ground terminal connection portion of the substrate, the rear portion being in contact with a ground terminal contact portion provided at a lower surface of an end portion of the flat conductor, The front portion of the signal terminal, the front portion of each of the two 1 st ground terminals, and the rear portion of the 2 nd ground terminal overlap each other, respectively, when the connector is viewed from the right side or the left side.
  2. 2. The connector of claim 1, wherein the connector comprises, The rear end of the 2 nd ground terminal is located at a rear side of the front end of each of the signal terminal and the two 1 st ground terminals.
  3. 3. The connector of claim 1, wherein the connector comprises, A substrate connection portion connected to the signal terminal connection portion of the substrate is formed at a rear end portion of the signal terminal, a transmission body contact portion contacting a signal terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a front end portion of the signal terminal, A substrate connection portion connected to the ground terminal connection portion of the substrate is formed at a rear end portion of each 1 st ground terminal, a transmission body contact portion contacting a ground terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a front end portion of each 1 st ground terminal, A substrate connection portion connected to the ground terminal connection portion of the substrate is formed at a front end portion of the 2 nd ground terminal, a transmission body contact portion contacting a ground terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a rear end portion of the 2 nd ground terminal, The substrate connection portion of each of the signal terminal and the two 1 st ground terminals is located at a rear end portion of the housing, the substrate connection portion of the 2 nd ground terminal is located at a front end portion of the housing, and the transmission body contact portion of each of the signal terminal, the two 1 st ground terminals, and the 2 nd ground terminal is located at a front-rear direction intermediate portion of the housing.
  4. 4. The connector of claim 1, wherein the connector comprises, The plurality of terminals include a 3 rd ground terminal configured to overlap each of a front portion of the signal terminal, front portions of the two 1 st ground terminals, and rear portions of the 2 nd ground terminal when the connector is viewed from above, and one portion is connected to a ground terminal connection portion of the substrate and the other portion is in contact with a ground terminal contact portion provided at an upper surface of an end portion of the flat conductor.
  5. 5. The connector of claim 4, wherein the connector comprises, A transmission body contact portion which is in contact with a signal terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a front end portion of the signal terminal, A transmission body contact portion which is in contact with a ground terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a front end portion of each 1 st ground terminal, A transmission body contact portion which is in contact with a ground terminal contact portion provided at a lower surface of an end portion of the flat type conductor is formed at a rear end portion of the 2 nd ground terminal, The 3 rd ground terminal has a plate-like shielding portion extending in the front-rear direction and the left-right direction, The shielding portion is located above the transmission body contact portion of each of the signal terminal, the two 1 st ground terminals, and the 2 nd ground terminal, The right edge of the shielding part is positioned at the right side of the transmission body contact part of the rightmost terminal among the signal terminal, the two 1 st grounding terminals and the 2 nd grounding terminal, The left edge of the shielding portion is located on the left side of the transmission body contact portion of the leftmost terminal among the signal terminal, the two 1 st ground terminals, and the 2 nd ground terminal.
  6. 6. The connector of claim 4, wherein the connector comprises, A transmission body contact portion which is in contact with a signal terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a front end portion of the signal terminal, A transmission body contact portion which is in contact with a ground terminal contact portion provided at a lower surface of an end portion of the flat conductor is formed at a front end portion of each 1 st ground terminal, A transmission body contact portion which is in contact with a ground terminal contact portion provided at a lower surface of an end portion of the flat type conductor is formed at a rear end portion of the 2 nd ground terminal, The 3 rd ground terminal has a plate-like shielding portion extending in the front-rear direction and the left-right direction, The shielding portion is located above the transmission body contact portion of each of the signal terminal, the two 1 st ground terminals, and the 2 nd ground terminal, The front edge of the shielding part is located at a position on the front side of the front end of the front-most terminal of the signal terminal and the two 1 st ground terminals, or the front-rear direction position of the front edge of the shielding part coincides with the front-rear direction position of the front end of the front-most terminal of the signal terminal and the two 1 st ground terminals, The rear edge of the shielding portion is located at a position on the rear side of the rear end of the 2 nd ground terminal, or the position in the front-rear direction of the rear edge of the shielding portion coincides with the position in the front-rear direction of the rear end of the 2 nd ground terminal.
  7. 7. The connector of claim 1, wherein the connector comprises, The plurality of terminals includes two of the signal terminals, The front portion of each of the two signal terminals, the front portion of each of the two 1 st ground terminals, and the rear portion of the 2 nd ground terminal overlap each other, respectively, when the connector is viewed from the right side or the left side.
  8. 8. The connector according to any one of claim 1 to 3, wherein, The circuit board is provided with a plurality of terminal groups including the signal terminal, the two 1 st ground terminals and the 2 nd ground terminal, wherein the plurality of terminal groups are arranged along the left-right direction.
  9. 9. The connector according to any one of claim 4 to 6, wherein, The circuit board is provided with a plurality of terminal groups including the signal terminal, the two 1 st ground terminals, the 2 nd ground terminal and the 3 rd ground terminal, wherein the plurality of terminal groups are arranged along the left-right direction.
  10. 10. The connector of claim 7, wherein the connector comprises, The circuit board is provided with a plurality of terminal groups including the two signal terminals, the two 1 st ground terminals and the 2 nd ground terminals, wherein the plurality of terminal groups are arranged along the left-right direction.

Description

Connector with a plurality of connectors Technical Field The present invention relates generally to a connector for connecting an FPC (Flexible Printed Circuits: flexible printed circuit) or an FFC (Flexible Flat Cable: flexible flat cable) to a rigid substrate. Background Currently, FPC or FFC is widely used as a transmission medium for transmitting signals or power. Hereinafter, FPC, FFC, and other flat type transmission media are referred to as "flat type conductors". In addition, currently, connectors for connecting flat conductors to a substrate (rigid substrate) are widely used. An example of such a connector is described in japanese patent application laid-open No. 2020-155243 (patent document 1). Hereinafter, the term "substrate" refers to a rigid substrate. Patent document 1 Japanese patent application laid-open No. 2020-155243. Disclosure of Invention The invention aims to improve isolation characteristics of a connector and reduce noise in the connector for connecting a flat conductor to a substrate. In order to solve the above problems, the invention according to claim 1 is a connector for connecting a flat conductor to a substrate, the connector comprising a plurality of terminals and a housing for supporting the plurality of terminals, the housing having an insertion portion for inserting an end portion of the flat conductor into the housing from the front of the housing, the plurality of terminals including a signal terminal extending forward from the rear of the housing and having a rear portion connected to a signal terminal connection portion of the substrate, the front portion being in contact with a signal terminal contact portion provided at a lower surface of the end portion of the flat conductor, two 1 st ground terminals extending forward from the rear of the housing and being respectively arranged on the right and left sides of the signal terminal, the respective rear portions being in contact with a ground terminal contact portion provided at a lower surface of the end portion of the flat conductor, and a2 nd ground terminal extending rearward from the front of the housing and being in contact with a signal terminal contact portion provided at a right side of the housing and a ground terminal contact portion provided at a left side of the signal terminal contact portion provided at the upper side of the signal terminal or the front of the signal terminal contact portion 1, and a left ground terminal contact portion provided at the front side of the signal terminal contact portion 1 being in contact portion of the signal terminal contact portion. The connector of the present invention has a terminal group including a signal terminal, two 1 st ground terminals, and a2 nd ground terminal. In this terminal group, the 1 st ground terminal is disposed to the right and left of the signal terminal, and the 2 nd ground terminal is disposed to the right of the 1 st ground terminal disposed to the right of the signal terminal or to the left of the 1 st ground terminal disposed to the left of the signal terminal. Further, when the connector is viewed from the right side or the left side, the front portion of the signal terminal, the front portion of each of the two 1 st ground terminals, and the rear portion of the 2 nd ground terminal overlap each other, respectively. Each of the 1 st ground terminal and the 2 nd ground terminal has a function of shielding the signal terminal. For example, when another transmission path exists on the right side of the terminal group, the 2 nd ground terminal is arranged on the right side of the 1 st ground terminal arranged on the right side of the signal terminal in the terminal group. Thus, a structure is formed in which the shield is doubly disposed between the signal terminal of the connector and the other transmission path. In the case where another transmission path exists in the left side of the terminal group, the 2 nd ground terminal is arranged in the left side of the 1 st ground terminal arranged in the left side of the signal terminal in the terminal group. Thus, a structure is formed in which the shield is doubly disposed between the signal terminal of the connector and the other transmission path. In the case where there are other transmission paths to the right and left of the terminal group, two 2 nd ground terminals may be arranged to the right of the 1 st ground terminal arranged to the right of the signal terminal and to the left of the 1 st ground terminal arranged to the left of the signal terminal, respectively, in the terminal group. In this way, the shield is doubly disposed between the signal terminal of the connector and the other transmission path existing on the right side of the terminal group, and the shield is doubly disposed between the signal terminal of the connector and the other transmission path existing on the left side of the terminal group. In the connector of the present invention, the 1 st ground terminal extends forw