公开(公告)号：DE19833609A1

公开(公告)日：2000-01-27

申请号：DE19833609

申请日：1998-07-25

Applicant: ABB RESEARCH LTD

Inventor： STRUEMPLER RALF ,  GLATZ-REICHENBACH JOACHIM ,  RAJALA ERKKI ,  SKINDHOJ JOERGEN

IPC: H01C7/02

Abstract: An electrical component consists of a positive temperature coefficient (PTC) polymer element (1) with neck sections (2) at right angles to the main current direction (3). The opening angle of the neck section in the main current direction longitudinal plane is at least 100 degrees.

公开(公告)号：DE19810982A1

公开(公告)日：1999-09-16

申请号：DE19810982

申请日：1998-03-13

Applicant: ABB RESEARCH LTD

Inventor： SKINDHOJ JOERGEN ,  STRUEMPLER RALF ,  GREUTER FELIX

IPC: H01C10/10 ,  H01H1/06 ,  H01H39/00 ,  H01H33/28

Abstract: The arrangement has a loose, electrically conducting powder (1) arranged in the path (17) of the current, a compression device for compressing the powder and a release device (21,22) for reducing the compression force to increase the electrical resistance of the powder in response to triggering the arrangement. The release arrangement has a drive with a gas generating material (22). Independent claims are also included for a method of limiting an electric current and a method of producing a good electrical connection.

公开(公告)号：DE19810981A1

公开(公告)日：1999-09-16

申请号：DE19810981

申请日：1998-03-13

Applicant: ABB RESEARCH LTD

Inventor： GLATZ-REICHENBACH JOACHIM ,  STRUEMPLER RALF ,  BAIATU TUDOR ,  GREUTER FELIX ,  SKINDHOJ JOERGEN

IPC: H01C7/02 ,  H01H9/42 ,  H01H9/46

Abstract: The switch has at least two contact pieces (1,2) and at least one light arc rail (3) adjacent to and connected to at least one contact piece, which does not lie in the current path with the contacts closed and which produces a light arc (4) from the contact piece to the rail when the contact pieces are opened. The light arc rail consists at least partly of positive temperature coefficient conductor material and/or is connected via a PTC conductor (5) to an adjacent contact piece. An Independent claim is also included for a switch arrangement.

公开(公告)号：DE19805650A1

公开(公告)日：1999-08-19

申请号：DE19805650

申请日：1998-02-12

Applicant: ABB RESEARCH LTD

Inventor： STRUEMPLER RALF ,  MALLICK VISHAL ,  SKINDHOJ JOERGEN ,  GLATZ-REICHENBACH JOACHIM

IPC: B23K20/16 ,  B29C65/34 ,  H01C1/14 ,  H01C7/02 ,  H05B3/14 ,  B29C65/02 ,  H05B3/10

Abstract: The invention concerns an improved joining method for joining two parts (1 and 2) by means of a joining material layer (3). By means of contacts (4 and 5), a voltage is applied to a PTC polymer material layer in the joining material (3) from an energy supply (6) via an external electric circuit. The PTC effect leads to automatic uniform distribution of the Joulean heat loss and to uniform two-dimensional melting when the joint is being produced.