Abstract: The present invention provides a sealing type automotive relay with a safety device in the field of automotive relays, which addresses the problems of inconvenient fuse replacement and poor sealing property of the fuse in the existing relays. The sealing type automotive relay with a safety device comprises a relay main body and a safety device. The relay main body includes a base, a casing and a weak current system and a strong current system located on the base. The casing is fixedly connected with the base. The safety device includes two fuse sockets positioned on the base and a fuse inserted between the said two fuse sockets. The top of the casing is provided with a fuse inserting hole corresponding to the said two fuse sockets. The fuse is inserted into the inserting hole. A sealing cover is provided at the port of the fuse inserting hole.

Abstract: A fuse assembly structured for use with a power circuit includes: a fuse holder defining a space and including first and second terminals structured to electrically connect to the power circuit; a fuse disposed in the space defined by the fuse holder; and a relay disposed in the space defined by the fuse holder. The relay includes separable contacts, an operating mechanism structured to open and close said separable contacts, and a control circuit cooperating with said operating mechanism to cause said operating mechanism to open or close said separable contacts. Current flowing between the first and second terminals flows through the separable contacts and the fuse and opening the separable contacts interrupts said current flowing between said first and second terminals.

Abstract: An electrical circuit breaker includes a moveable contact piece connected to an actuating means and provided with a contact face arranged to make contact with a contact face of a second contact piece by movement of the moveable contact piece generally in a first direction. The circuit breaker further includes an electrical connector for conveying current to the moveable contact piece which includes at least two adjacent limbs adapted to convey the current in opposing directions so as to generate an electromagnetic force repelling the adjacent limbs from one another, which force is used to assist in maintaining the contact faces in abutment.

Abstract: An accommodation section 22 is disposed integrally with a coil bobbin 20. A winding start portion 4a and a winding end portion 4b of an excitation coil 4 are forced into the accommodation section 22, a diode 24 is accommodated, and they are electrically connected through two terminals 27A and 27B. Coil engagement grooves 30a and 30b into which the winding start portion 4a and the winding end portion 4b are fitted, lead engagement grooves 31a and 31b and terminal engagement grooves 32a and 32b into which the terminals 27A and 27B are fitted are made in the inner bottom surface of the accommodation section 22. The terminals 27A and 27B have grooves into which the winding start portion 4a, the winding end portion 4b and the leads 24a and 24b are fitted, respectively, and lead wires 26 on the power source side are connected, respectively.

Abstract: A wound bobbin coil (A) and a fuse (B) are interconnected electrically in series. The coil and the fuse are mounted closely adjacent and molded into a tough, nylon encapsulation (C). The series connected coil and fuse are connected with electrical terminals (26, 30) to form a unitary electrical component which is readily connected with associated circuitry. In this manner, when the coil becomes damaged sufficiently to blow the fuse, both the coil and the fuse must be replaced. A repairman cannot short the fuse or merely replace the fuse and allow a damaged coil to continue functioning. In the preferred utilization of the present coil in a freezer compartment ice maker, coil failures can cause flooding, overheating, and other catastrophic damage to a refrigerator/freezer.

Abstract: An electromagnetic assembly including an electromagnetic coil wound on a core of ferromagnetically conductive material. A temperature protection circuit includes a fuse which breaks when the electromagnetic assembly becomes overheated. The fuse is thermally coupled to pole pieces of the assembly and is in electrical circuit with the coil.

Abstract: Electric relay comprising one or more relay tongues, a relay contact cooperating with the respective tongue and an electromagnet actuating the respective tongue. A relay tongue unit (3) is then integral with at least one relay tongue (4), which has in one part an area reducing cross sectional dimension and is formed at its end opposite to the free end with a material cut portion (23) serving as an electric fuse. The surface of the relay contact (6) cooperating with the contact point (5) of the relay tongue is movable to a limited extent relative to this and, moreover, the electromagnet (9) actuating the relay tongue (4) consists of two composite iron plates (31, 32) electrically insulated from each other which have each, insulated from each other, an electric connection (34) integral with the iron plate, the coil (37) fed by the operating current of the electromagnet (9) being connected with one of its conducting ends (38) to one iron plate (31) and with its other end (39) to the other iron plate (32).

Abstract: In a relay tongue unit intended to be included in an electric relay the unit comprises at least one tongue unit in the form of a resilient sheet consisting of an attaching member, which comprises a main portion (1), a fuse portion (2) and a transition portion (3), and a tongue portion (4). This has at its free end a contact (5) and a resistance portion.

Abstract: An electro-mechanical circuit breaker device incorporating a fuse cartridge, wherein two contact bars are normally connected by a series of mobile contacts held against their lower edge by springs, two in number for each. An insulating plate, suitably guided at its edges in the insulating envelope of the apparatus, receives the downward displacement that a coil applies by the Thomson effect to an aluminum disc, and it lowers the contacts against spring and latches them in open position by engagement of a bolt in a notch. The lower edge of the plate is provided with teeth to receive the successive contacts and retain them transversely, while each of the mobile contacts is notched to ensure lengthwise retention.

Abstract: A flux shifting circuit breaker trip device is disclosed which includes a permanent magnet for retaining a solenoid armature in opposition to a spring force. Energization of the solenoid winding produces a magnetic flux in opposition to the permanent magnet flux to extend the armature under the spring force. In order to provide ambient temperature response, the solenoid armature is formed from a stem part and a barrel part held together by a meltable material. Increase in ambient temperature above a predetermined value causes the material to melt allowing the stem part to extend under the spring force to trip the breaker.

Abstract: A plastic coil bobbin has a recess with the precise dimensions of a thermal fuse. On one side, the recess is open so that, as the coil is wound on the bobbin, successive layers of coil wire form a wall-like surface closing that open side. As the fuse is press fit into the recess, it is also forced into intimate contact against the wall of wire. Thus, the only material between the fuse and wire is a thin plastic shell forming the fuse housing. Since the fuse rating takes this wall thickness into account, there is effectively no thermal insulation between the coils and the fuse. Accordingly, under overheating conditions, the fuse opens a circuit when there is overheating and before a fire can start.