An electromagnetic switch includes a first and a second solenoid arranged in alignment in an axial direction of a housing and brings a pinion into mesh with a ring gear of an engine and close main contacts in a power supply circuit for an electric motor which cranks the engine. A retainer is provided which extends from a first bobbin of the first solenoid at least to a location of an air gap formed in a magnetic circuit of the second solenoid. The retainer holds a portion of a lead wire extending from a bobbin of the first solenoid at least in a range between the bobbin and the air gap, thereby minimizing inclination or deflection of the lead wire when the first and second solenoids are fabricated within the housing, thus facilitating the ease with which the first and second solenoids are mounted in place in the housing.

An electromagnet device includes an electromagnetic coil and a capacitor. The electromagnetic coil includes a first coil and a second coil connected in parallel to the first coil. The capacitor is connected to the second coil and configured to be charged by a voltage applied to the electromagnetic coil. Upon application of the voltage to the electromagnetic coil, the first coil and the second coil are turned from a non-conducting state to a conducting state. Upon completion of a charging of the capacitor by the application of the voltage to the electromagnetic coil, a current flow into the second coil will have ceased, and the second coil will have changed from the conducting state into the non-conducting state.

A relay coil assembly includes a bobbin having flanges on two ends, an enameled wire wound around bobbin, a coil pin mounted to the flange and having an insertion portion, an enameled wire fixing portion and a signal wire fixing portion, and a signal wire. The signal wire fixing portion is provided with a first engagement recess with an opening facing downward, in which the signal wire is engaged. An inverted hook is provided at one of two recess sidewalls of the first engagement recess, and a slope section is provided at one of the two recess sidewalls of the first engagement recess. The opening gradually enlarges from inside to outside along the slope section, which is capable of squeezing the signal wire into the first engagement recess and the inverted hook is capable of preventing the signal wire from coming out.

A main fixed contact and a main moving contact are disposed on the front side of a coil, and an auxiliary fixed contact and an auxiliary moving contact are arranged above the coil in a housing. An auxiliary contact terminal includes an upper piece extending above the coil and provided with the auxiliary fixed contact or the auxiliary moving contact, a side piece connected to the upper piece and extending downward from the upper piece and disposed on a side of the coil, and a connecting piece connected to the side piece and provided so as to protrude outward from the housing. The side piece is press-fitted into a press-fitting portion formed in a coil bobbin, and the press-fitting portion includes an opening into which the side piece is press-fitted and a restriction wall formed around the opening so as to face the side piece.

An electromagnetic relay includes a first fixed terminal including a first fixed contact, a second fixed terminal including a second fixed contact, a movable contact piece including first and second contacts, a drive device including a coil, a case, and a magnet. The case includes an accommodation space accommodating the first fixed contact, the second fixed contact, and the movable contact piece, and a first arc extension space at least partially disposed between the coil and the magnet. The magnet is disposed so as to overlap with the coil in a third direction orthogonal to the moving direction and a longitudinal direction of the movable contact piece. The magnet configured to extend a first arc generated between the first fixed contact and the first movable contact and a second arc generated between the second fixed contact and the second movable contact in the longitudinal direction of the movable contact piece.

A relay has a case, a first fixed terminal including a first fixed contact, a second fixed terminal including a second fixed contact, a movable touch piece including a first movable contact that is disposed facing the first fixed contact and a second movable contact that is disposed facing the second fixed contact, the movable touch piece being disposed in the case and disposed so as to be movable in a direction in which the first movable contact and the second movable contact come into contact with the first fixed contact and the second fixed contact and in a direction in which the first movable contact and the second movable contact separate from the first fixed contact and the second fixed contact. The first fixed terminal includes a first contact support disposed in the case and configured to support the first fixed contact.

A relay has a case, a first fixed terminal including a first fixed contact, a second fixed terminal including a second fixed contact, a movable touch piece including a first movable contact that is disposed facing the first fixed contact and a second movable contact that is disposed facing the second fixed contact, the movable touch piece being disposed in the case and disposed so as to be movable in a direction in which the first movable contact and the second movable contact come into contact with the first fixed contact and the second fixed contact and in a direction in which the first movable contact and the second movable contact separate from the first fixed contact and the second fixed contact, a drive shaft connected to the movable touch piece and extending in a movement direction of the movable touch piece, and a coil.

The disclosure provides fixing structure between a metal part and a plastic part of a relay/circuit breaker, comprising a metal part, a first plastic part and a second plastic part. A positioning groove is disposed on the first plastic part, one portion of the metal part is inserted and positioned in the positioning groove, and the other portion of the metal part is positioned between the first plastic part, and the second plastic part; a through hole is disposed at the second plastic part near to the positioning groove, glue is dispensed into the positioning groove though the through hole. A first glue blocking rib suitably fitting with a corresponding side of the other portion is respectively disposed at a position of the first plastic part corresponding to both sides of the positioning groove to prevent the glue from following to an inside of the relay/circuit breaker.

An electromagnetic relay includes a base, a fixed terminal, a fixed contact, a movable piece, a movable contact, a magnet, a base holder, and a case. The fixed terminal is supported by the base. The fixed contact is connected to the fixed terminal. The movable piece is supported by the base. The movable contact is connected to the movable piece and faces the fixed contact. The magnet exerts a Lorentz force on an arc generated between the fixed contact and the movable contact. The base holder is a separate body from the base. The base holder is attached to the base. The base holder is disposed in at least a direction in which the Lorentz force acts with respect to the base. The case is attached to the base holder.

A contactor including a pedestal. The pedestal is of a step structure having notches in two ends. The step structure includes a first step and a second step from bottom to top and is covered with a cover body having a matched shape. A part, which protrudes out of the second step, at each of two ends of the first step, is provided with a first mounting groove in which a control terminal and a power terminal that are spaced apart from each other are mounted, and the cover body is provided with a first wiring port corresponding to the control terminal and a second wiring port corresponding to the power terminal. Each of two ends of the second step is provided with a second mounting groove in which an auxiliary terminal is mounted, and the cover body is provided with a third wiring port which corresponds to the auxiliary terminal mounted in the second mounting groove. The contactor has a simple structure, and wiring areas can be distinguished.