CN204303696U - A.C. contactor - Google Patents

Abstract

The utility model relates to an AC contactor, comprising a base, a base, a cover, an electromagnetic system and a contact system arranged in the base, the electromagnetic system includes a magnetic yoke arranged on the base, a magnetic yoke arranged on the The coil bobbin on the bobbin, the coil on the bobbin, the armature set on the upper end of the bobbin, the return spring set between the upper end face of the bobbin and the lower end face of the armature, both sides of the upper end face of the bobbin are provided with Wiring slots, the two wiring slots are provided with lugs electrically connected to the coil, the two lugs are soldered with coil leads, and the corresponding coil leads are set on the base There are corresponding wiring holes, and the terminals of the lead wires of the coils pass through the corresponding wiring holes and are exposed outside the base. The utility model has the advantages of reasonable structural design and stable performance.

Description

AC contactor

technical field

The utility model relates to a power switch for controlling on-off of a circuit, in particular to an AC contactor.

Background technique

At present, the AC contactor is mainly used for frequently connecting or breaking the AC circuit. It has a large control capacity and can be operated from a long distance. With the relay, it can realize timing operation, interlock control, various quantitative control and voltage loss and undervoltage protection. Applied to automatic control circuit. The AC contactor includes an insulating shell, an electromagnetic system, and a contact system. The control circuit of the electromagnetic system of the existing AC contactor is controlled by contacting the contact piece of an auxiliary control circuit with the contact shrapnel on the coil frame. However, during the long-term use of the AC contactor, the contact piece and the contact shrapnel are easily oxidized, and the contact shrapnel is affected by the temperature rise of the AC contactor for a long time, and the elasticity of the contact shrapnel becomes smaller, resulting in the contact piece and the contact The poor contact of the shrapnel causes the control circuit to be de-energized, which affects the normal use of the AC contactor, so that the AC contactor has defects of unreliable performance and unreasonable structural design.

Contents of the invention

The purpose of the utility model is to overcome the defects of the prior art and provide an AC contactor with reasonable structural design and stable performance.

In order to achieve the above purpose, the utility model adopts an AC contactor, including a base, a base, a cover, an electromagnetic system and a contact system arranged in the base, and the electromagnetic system includes a magnetic yoke arranged on the base , the coil bobbin arranged on the yoke, the coil arranged on the coil bobbin, the armature arranged on the upper end of the coil bobbin, the return spring arranged between the upper end surface of the coil bobbin and the lower end surface of the armature, the two Wiring grooves are provided on the sides, and wiring pieces electrically connected to the coil are arranged in the two wiring grooves. The two wiring pieces are connected with coil leads by soldering. The bases correspond to each Coil lead wires are provided with corresponding wiring holes, and the terminals of each coil lead wire are exposed outside the base through the corresponding wiring holes.

The beneficial effects of the utility model are: the AC contactor improves the control circuit of the existing electromagnetic system, and connects the two coil lead wires to the corresponding lugs on the coil frame by soldering respectively, and the terminals of the two coil lead wires It can be drawn from the wiring hole on the base and connected to the power supply, so as to realize the electrification of the coil on the coil frame, that is, to realize the electrification of the control loop of the electromagnetic system of the AC contactor. The structure design of the control loop of the electromagnetic system is reasonable, It avoids the power failure of the control circuit caused by poor contact, thus ensuring the safe and stable operation of the AC contact.

Description of drawings

Fig. 1 is a perspective view of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the internal structure of the utility model.

Fig. 3 is a schematic diagram of the coil skeleton structure of the utility model.

Detailed ways

As shown in Figures 1, 2, and 3, the embodiment of the utility model is an AC contactor, including a base 10, a base 11, a cover 12, an electromagnetic system and a contact system arranged in the base 11, and the The electromagnetic system includes a yoke 20 set on the base 11, a bobbin 21 set on the yoke 20, a coil 22 set on the bobbin 21, an armature 23 set on the upper end of the bobbin 21, and a bobbin 21 set on the bobbin 21. The return spring 26 between the end surface and the lower end surface of the armature 23, the two sides of the upper end surface of the coil skeleton 21 are provided with wiring grooves 211, and the two wiring grooves 211 are provided with electrical connection with the coil 22. Lugs 24, the two lugs 24 are soldered with coil leads 25, the base 11 is provided with corresponding wiring holes 111 corresponding to the coil leads 25, and the coil leads 25 are provided with corresponding wiring holes 111. 25 through the corresponding wiring holes 111 exposed outside the base 11 . The AC contactor improves the control circuit of the existing electromagnetic system. By soldering the two coil lead wires to the corresponding lugs on the coil frame, the terminals of the two coil lead wires can be connected through the wiring holes on the base. The inner lead is connected to the power supply, so as to realize the energization of the coil on the coil frame, that is, to realize the energization of the control loop of the electromagnetic system of the AC contactor. The structure design of the control loop of the electromagnetic system is reasonable, which avoids the control loop caused by poor contact The non-energized, thus ensuring the safe and stable operation of the AC contact.

Claims (1)

1. an A.C. contactor, comprise base, pedestal, cover, be arranged on the electromagnetic system in pedestal and contact system, it is characterized in that: described electromagnetic system comprises the yoke be arranged on base, be arranged on the coil rack in yoke, coil on coil rack is set, be arranged on the armature of coil rack upper end, be arranged on the back-moving spring between coil rack upper surface and armature lower surface, the both sides place of described coil rack upper surface is provided with connecting groove, the lug plate be electrically connected with coil is provided with in two described connecting grooves, on two described lug plates, equal soldering is connected with coil lead, on described pedestal, corresponding each coil lead place is provided with corresponding routing hole, the terminals of described each coil lead are exposed at the outside of pedestal through corresponding routing hole.