Yazaki Corporation

Mitsugu Watanabe

Masaaki Sugiyama

Masaki Yamamoto

Hideharu Hayashi

Mamoru Sawai

Yukio Nishio

Tomoyuki Hirano

Keiichi Ozaki

Mitsuji Kubota

Etsuji Matsumoto

Nozomi Kawasaki

Yoshihisa Natsume

Kazuhiko Kaneko

Hiroshi Suzuki

Mitsunori Tsunoda

Yasuhiro Hara

Tsuyoshi Nakamura

Masayuki Sato

Kaoru Kurita

Shouzou Ohshima

Hideto Aoki

Toshiyuki Kamano

Toshikazu Akiyama

Mitsuyasu Kanehiro

When the power supply from a power source,to a load,is controlled in a switching manner by a semiconductor switch QA, reference voltage generating means (QB, Rr) generates a reference voltage (VDSB) having a voltage characteristic substantially equivalent to that of a voltage between the terminals of the semiconductor switch QA being connected to a predetermined load. Detecting means CMP,detects a difference between the voltage (VDSA) between the terminals of the semiconductor switch QA and the reference voltage (VDSB). Control means which consists of the gate driver,amd CMP,performs an on/off control of the semiconductor switch QA in accordance with the difference between the voltage (VDSA) between the terminals of the semiconductor switch and the reference voltage (VDSB).

Power supply control device for protecting a load and method of controlling the same

A wire-protecting apparatus for automobiles in which at least one power-supplying lead for supplying an electric power to a load has at least one PTC element inserted in series with the power-supplying lead. The PTC element exhibits a high resistance at temperatures higher than a predetermined value when an overcurrent greater than a predetermined value flows through the load, thereby substantially shutting off the electric power to the load.

Wire protecting apparatus for automobiles

A resilient terminal with a buckling prevention mechanism has a pair of electric contact portions that are interconnected through a flexible joint portion. The flexible joint portion is protected against buckling because an excess bending of the joint portion is blocked by an abutment portion on one of the electric contact portions abutting against the other electric contact portion.

Resilient terminal with buckling prevention mechanism

A resilient terminal with a buckling prevention mechanism has a pair of electric contact portions that are interconnected through a flexible joint portion. The pair of contact portions are provided with abutment portions that are disposed opposite to each other with a small gap therebetween. When there is a misalignment between the mating terminals or when an excessive insertion force is applied, the flexible joint portion of the terminal deflects to allow the male terminal to be inserted therein. The flexible joint portion, however, is protected against buckling because an excess bending of the joint portion is blocked by the abutment portions abutting against each other. At the same time, one of the abutment portions slides on the other, correcting the terminal misalignment and ensuring reliable terminal engagement.

To standardize electric junction boxes so that the internal circuits can be applied to various requirements without markedly changing parts, the junction box is divided into plural stackable distributing units each connectable to each subharness via each subharness connector. The junction box comprises a plurality of stackable distributing units including a plurality of parallel arranged wires connectable with at least one external subharness; wire shorting bus bars or wire branch bars arranged so as to cross the parallel arranged wires; and an interlayer connecting unit or plural interlayer connecting terminals arranged so as to cross the surfaces of the plural distributing units for connecting the parallel arranged wires and the wire shorting bus bars arranged on different distributing units. Further, when male connector terminals are provided on each distributing unit, it is possible to form a subharness connector by use of these male connector terminals on each distributing unit.

Electric junction box

The circuits contained in an electrical connection box provided near an instrument panel of a car can be separated into a plurality of separately formed connection blocks. The connection blocks each have terminals in which a plurality of conductors are press-fitted so that the connection blocks are electrically connected through the conductors and the terminals. The relative positions of the connection blocks are then adjusted so that the shapes of the connection blocks and conductors conform to the shape of the instrument panel. Thus, the connection box is close to the objects with which it is to be connected, the capacity of accommodating more fuses, circuits, etc., is increased, and electrical wires are shortened. Additionally, it is easy to adjust the connection box for various types of cars and specifications.

Electrical connection box

Apparatus is provided for installing a wire harness of an automobile which facilitates installation of a wire harness onto a car body. First of all the wire harness and electrical equipment are fixed on a carrier panel. In the fixing them, the connectors of the wire harness are positioned for connection to the articles of electrical equipment. Some connectors of the wire harness fixed on the carrier panel are adapted to be connected to the connectors of the wire harness on the car body. The thus prepared assembly of carrier panel, the wire harness, the electrical equipment is bodily attached to the car body.

Apparatus for installing a wire harness

To decrease the number of connectors and increase the connection reliability in a controller-including wiring apparatus for an automotive vehicle, the apparatus comprises (a) a junction block having at least one bus bar circuit board on which harness branch circuits are arranged and to which electric devices are connectable; (b) a controller unit having at least one printed circuit board on which control circuits are arranged to control the electric devices; and (c) a plurality of junction terminals collectively arranged at an end of the junction block and having first and second ends and middle portions, some of the middle portions being joined to the branch circuits, the first ends being for coupling to said controller unit and the second ends being for coupling to the wire harness.

Controller-including wiring apparatus for automotive vehicle

A protection cover for a wiring distribution box in which rising walls are continuously or discontinuously formed around a label bonding position.

Protection cover

A watertight and leak-proof junction box for use, for example, in vehicles such as automobiles, and a process of assembling such a junction box are provided. The wiring board assembly comprising a plurality of insulating plates, wiring conductors strips and electric contacts formed by raising the free ends of the strips so as to project from the outer surface of the wiring plate pile which is embedded in an insulating resin through molding to form a resin-embedded wiring board assembly prior to assembling the junction box, and then the resin-embedded wiring board assembly joined with a connector support board having connector bodies for receiving the terminals of electrical units and/or wire harnesses is contained in a watertight case. A leak preventing wall is formed so as to surround the base portion of each electric contacts, so that the flow of leak current between the adjacent contacts is prevented even if water intrudes into the watertight case and spreads over the outer surface of the wiring board assembly.

Junction box and a process of assembling the same

An ultra multi-pole connector includes a plurality of small size multi-pole connectors each having a connector housing which has a plurality of terminals connected to a plurality of wires therein and engagement shoulders projecting from the upper portion of the connector housing, and a casing having a plurality of hollow sections to which said small size multi-pole connectors are mounted, respectively, and each of said hollow section having an engagement members, thereby the small size multi-pole connectors can be displaceably mounted in the hollow sections by engagement of the engagement shoulders and the engagement members.

Ultra multi-pole connector

A method of and apparatus for installing a wire harness of an automobile which facilitates installation of a wire harness onto a car body. First of all the wire harness and electrical equipment are fixed on a carrier panel. In the fixing them, the connectors of the wire harness are positioned for connection to the articles of electrical equipment. Some connectors of the wire harness fixed on the carrier panel are adapted to be connected to the connectors of the wire harness of the car body. The thus prepared assembly of carrier panel, the wire harness, the electrical equipment is bodily attached to the car body.

Method for installing a wire harness

An improved wiring system is provided in which a connector box having a plurality of terminals, electrical circuitry, and bus bars is incorporated. Since each bus bar provides forked conductive paths between the circuitry and the terminals, the terminals of the connector box and outside connectors can be connected by way of wires in a one-to-one correspondence. This simplified wiring mode greatly reduces manual labor in the manufacture of wire harnesses. Moreover, if a plurality of connector boxes of such structure as above are provided, they can be arranged in the vicinity of any of the electrical equipment of the vehicle due to their compact structure, thus minimizing the arrangement of power line wires in the car body.

Wiring system for automotive vehicles

Plastic wiring connectors used in an automobile electric circuit often produce noise to the discomfort of the passengers. Connectors of this invention are coated with a suitable fiber strand material on their surfaces etc., considerably reducing such noise.

Noise reduction connectors

Plastic wiring connectors used in an automobile electric circuit often produce noise to the discomfort of the passengers. Connectors of this invention are coated with a suitable fiber strand material on their surfaces etc., considerably reducing such noise. This invention provides methods of manufacturing the noise reducing component.

Growing community of inventors

Kosai, Japan

Mitsugu Watanabe