Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Hideki Mitsuoka

Hiromichi Koyama

Yoshiro Sano

Naoki Sera

Tetsuya Fukuda

Tetsutaro Nasu

A movable contact unit, of which an upper surface of a movable contact made of a conductive metal plate is adhesively fixed to an adhesive layer formed on the underside of a base film, an upper surface of a separator is affixed to the adhesive layer in a manner to sandwich the movable contact between them, and the periphery of the movable contact is heated and pressed in a circular shape from above of the base film to form a convex-shaped portion in an area of base film corresponding to the movable contact in a manner to fit along a dome-like shape of the movable contact and to make a peripheral area or a base of the convex-shaped portion pressed circularly to close adhesion to the separator with the adhesive layer. By virtue of this structure, there can be an improvement of manufacturing efficiency of the movable contact unit.

Movable contact unit and method of manufacturing the same

A method of manufacturing a movable contact unit includes manufacturing a movable contact, sticking the movable contact to a base sheet made of insulating resin, and applying demagnetization to the movable contact so that the residual magnetic flux density is smaller than the operation magnetic flux density of the magnetic sensor. In manufacturing the movable contact, elastic metal plate material is processed into a downwardly opening dome shape to form the movable contact. In a method of manufacturing a switch panel, the movable contact unit is overlaid on a wiring board having a contact, including pair an outer fixed contact and a central fixed contact, that corresponds to the movable contact so that the lower end of the outer periphery of the movable contact is mounted on the outer fixed contact.

Method of manufacturing a switch panel to be disposed close to a magnetic sensor

Diaphragm for a switch

A movable contact unit arrangement includes a movable contact disposed close to a magnetic sensor. The movable contact unit includes a base sheet made of insulating resin, and a movable contact made of elastic metal plate material and having a downwardly opening dome shape. The movable contact is stuck to the base sheet. The magnetic sensor has an operation magnetic flux density during operation, and the movable contact is a demagnetized movable contact so that a residual magnetic flux density of the movable contact is smaller than the operation flux density of the magnetic sensor.

Movable contact unit arrangement including a movable contact unit and a magnetic sensor

Method of manufacturing a movable contact unit to be disposed close to a magnetic sensor

An insulating film 3 is provided with an opening 4 whose size is substantially equivalent to or slightly smaller than the outer configuration of electronic component 5. A conductive pattern 2 is formed on insulating substrate 1. After forcibly inserting the main body of electronic component 5 into said opening 4, terminals 6 are put between insulating film 3 and insulating substrate 1 and disposed in such a manner that terminals 6 are brought into contact with conductive pattern 2. Then, insulating film 3 is connected with insulating substrate 1 by fusing them in a region surrounding terminals 6, thereby firmly fixing terminals 6 of electronic component 5 on conductive pattern 2.

Growing community of inventors

Okayama, Japan

Hideki Mitsuoka