Ngk Spark Plug Company, Limited

Other

Minoru Yasuda

Takafumi Oshima

Noriyasu Sugimoto

Yoshihiko Kohmura

Toshiharu Ito

Toshinori Iida

Yasuhiko Ogawa

Yoshihiko Komura

Kazuhiko Nakayama

In the vehicle-lamp lighting-on device, a body case has a connection opening formed in the front end thereof. A lighting-on transformer is disposed within the body case. The transformer includes a core housing with an iron core and a coil bobbin with a secondary coil wound thereon. The connection opening of the body case is shielded at the front end of the lighting-on transformer. A socket for receiving a vehicle discharge lamp includes a high-voltage terminal and low-voltage terminals. When the socket is inserted into the connection opening of the body case, the high-voltage terminal of the socket is connected to the high-voltage side terminal of the lighting-on transformer, and the low-voltage terminals are connected to the low-voltage side terminals. The connection opening of the body case is shielded by the front surface (made of insulating material) of the lighting-on transformer. The vehicle-lamp lighting-on device can be completed by merely attaching the socket to the assembly of the lighting-on transformer and the body case. Therefore, the assembly of the device is easy. Further, the height of the vehicle-lamp lighting-on device is reduced overall since there is no need to form a wall corresponding to the shielding member in the body case.

Vehicle-lamp lighting-on device

In a high-voltage transformer, an insulating ring is placed on and along the inner surface of the core housing, and gaps are formed between the tips of the flange-like plates of the coil bobbin and the inner side of the insulating ring. With such a construction, the gaps and the insulating ring are provided between the coil bobbin and the inner wall of the core housing, so that the flange-like plates of the coil bobbin do not come in contact with the inner surface of cylindrical wall of the core housing. Therefore, a surface distance of the coil bobbin ranges to a contact surface of the coil bobbin where it comes in contact with the front wall of the core housing. The surface distance is elongated. The voltage drop by the creepage discharge does no occur.

High-voltage transformer and a vehicle-lamp lighting-on device using the

A socket portion is provided to project from one side surface of a transformer receiving portion to thereby form a body case, and a lighting transformer is received in the transformer receiving portion so that a high voltage side output end of a secondary coil of the lighting transformer is electrically connected to a terminal provided in the socket portion and a primary coil of the lighting transformer is connected to an external electric path directly or through a circuit portion. Accordingly, the transformer receiving portion and the socket portion are integrally formed with each other to thereby form a unit structure.

Vehicle lighting drive apparatus

A comb-shaped piezoelectric unit, such as may be used for a mechanical signal source or in a display device for displaying raised letters for reading by blind persons. The piezoelectric unit includes a plurality of strip-shaped drive members extending from a common base part, a first metal electrode layer on each of the drive members with the first metal electrode layers among the drive members being insulated from one another, and a common metal electrode layer formed on the other side of the drive members, connected commonly to all drive members. To construct a display device for the blind, pins are attached to the free ends of each of the drive members, the pins being protrudable through respective holes in a rigid plate when the corresponding drive members are actuated by applying a voltage thereto.

Growing community of inventors

Nagoya, Japan

Minoru Yasuda