CN204809147U - Electromagnetic relay with manual control - Google Patents

Abstract

The utility model discloses an electromagnetic relay with manual control, which comprises a shell, an electromagnetic unit, a transmission unit, a contact unit and a manual control push rod; the contact unit, the transmission unit and the electromagnetic unit are all arranged in the shell; the contact units are symmetrically arranged on two sides of the transmission unit; the transmission unit is arranged between the two contact units and is matched with the electromagnetic unit and the two contact units; the electromagnetic unit comprises an iron core, a coil assembly, a left yoke and a right yoke. The utility model discloses the during operation, via the magnetic pole of two yokes of coil pack control and then take the positive and negative rotation of rotation piece, the positive and negative biography of rotation piece drives and pushes away the card, and then via promoting the card and drive movable contact and stationary contact, accomplishes circuit switching control, in above-mentioned structure, the operator can observe the operating condition of the position snap judgments relay of manual push rod, simultaneously, when the relay breaks down or other unexpected circumstances take place, also can control the relay by the manual push rod of fast operation.

Description

Electromagnetic relay with manual control

technical field

The utility model relates to a relay, in particular to an electromagnetic relay with manual control.

Background technique

Relay is an electronic control device, it has a control system (also known as input circuit) and a controlled system (also known as output circuit), usually used in automatic control circuits, it actually uses a smaller current to control a larger An "automatic switch" of electric current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

Today's relays often use a single unit to control the simultaneous opening and breaking of two groups of circuits, that is, one electromagnetic unit is used to control the two contact units. Current relays of this type lack manual control functions, and due to the visual shielding of the relay housing, people often cannot directly judge the circuit opening and closing status of the relay through vision, and can still judge through the working status of the circuit after connecting the circuit. However, many circuits need to confirm the opening and closing state before connecting the electromagnetic relay, otherwise the wrong connection due to the initial state of the circuit opening and closing may cause irreparable losses to the electrical and electronic products driven by the circuit.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the existing electromagnetic relay and provide an electromagnetic relay with manual control.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an electromagnetic relay with manual control, including a housing, an electromagnetic unit, a transmission unit, a contact unit, and a manual push rod;

The contact unit, the transmission unit and the electromagnetic unit are all installed in the housing;

The contact unit is symmetrically installed on both sides of the transmission unit;

The transmission unit is installed between the two contact units and cooperates with the electromagnetic unit and the two contact units;

The electromagnetic unit consists of an iron core, a coil assembly, a left yoke, and a right yoke;

the iron core is inserted into the coil assembly;

The left yoke and the right yoke are arranged symmetrically at both ends of the iron core and connected with the iron core;

The transmission unit includes a rotating member and a push card;

The rotating part is installed in the casing through the rotation of the rotating shaft, and cooperates with the left yoke and the right yoke;

The push card is connected with the rotating member;

The contact unit is composed of a moving reed, a static contact, a moving reed lead-out piece and a static contact lead-out piece;

The moving reed is provided with a moving contact matched with a corresponding static contact;

One end of the movable reed is riveted with the lead-out piece of the movable reed, and the other end is connected and matched with the push card.

The push card is connected with the manual push rod inserted into the housing,

When the utility model works, the magnetic poles of the two yoke irons are controlled through the coil assembly, and then the positive and negative rotation of the rotating part is carried out. The positive and negative transmission of the rotating part drives the push card, and then the moving reed contacts the static contact through the push card to complete the circuit. On-off control, in the above structure, because the manual push rod is connected with the push card, the operator can observe the position of the manual push rod to quickly judge the working status of the relay. You can quickly operate the manual push rod to control the relay.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

For the convenience of further understanding of the utility model, an embodiment is given in conjunction with the accompanying drawings for further description.

Example:

As shown in Figure 1, the utility model includes a housing 1, an electromagnetic unit, a transmission unit, a contact unit, and a manual push rod 2;

The contact unit, the transmission unit and the electromagnetic unit are all installed in the housing 1;

The contact unit is symmetrically installed on both sides of the transmission unit;

The transmission unit is installed between the two contact units and cooperates with the electromagnetic unit and the two contact units;

The electromagnetic unit consists of an iron core, a coil assembly 3, a left yoke 4, and a right yoke 5;

The iron core is inserted into the coil assembly 3;

The left yoke 4 and the right yoke 5 are arranged symmetrically at both ends of the iron core and connected with the iron core;

The transmission unit includes a rotating member 6 and a push card 7;

The rotating member 6 is installed in the housing 1 through the rotation of the rotating shaft, and cooperates with the left yoke 4 and the right yoke 5;

The push card 7 is connected to the rotating member 6;

The contact unit consists of a moving reed 8, a static contact 9, a moving reed lead-out piece and a static contact lead-out piece;

The moving reed 8 is provided with a moving contact matched with the corresponding static contact 9;

One end of the moving reed 8 is riveted with the leading piece of the moving reed, and the other end is connected and matched with the push card 7 one end.

The pushing card 7 is connected with the manual push rod 2 inserted into the housing 1 .

Claims (1)

1. An electromagnetic relay with manual control is characterized in that: it comprises a housing, an electromagnetic unit, a transmission unit, a contact unit, and a manual push rod; the contact unit, the transmission unit, and the electromagnetic unit are all installed in the housing; The contact unit is symmetrically installed on both sides of the transmission unit; the transmission unit is installed between the two contact units and cooperates with the electromagnetic unit and the two contact units; the electromagnetic unit consists of an iron core, a coil assembly, a left yoke, and a right yoke; The iron core is inserted into the coil assembly; the left yoke and the right yoke are symmetrically arranged at both ends of the iron core and connected with the iron core; the transmission unit includes a rotating part and a push card; the rotating part rotates through the rotating shaft Installed in the shell, cooperate with the left yoke and right yoke; the push card is connected with the rotating part; the contact unit consists of a moving reed, a static contact, a moving reed lead-out piece and a static contact lead-out piece The moving reed is provided with a moving contact matched with the corresponding static contact; one end of the moving reed is riveted with the leading piece of the moving reed, and the other end is connected and matched with one end of the push card; The push card is connected with the manual push rod inserted into the housing.