CN210200642U

CN210200642U - Magnetic latching relay capable of prolonging service life

Info

Publication number: CN210200642U
Application number: CN201920619035.1U
Authority: CN
Inventors: Jia Deng; 邓佳; Jianquan Li; 李健全; Ting Chen; 陈挺; Liguo Qian; 钱利国; Yerong Li; 李业荣; Liang Zhang; 张良
Original assignee: Guangxi Rui Yi Science And Technology Development Co Ltd
Current assignee: Guangxi Rui Yi Science And Technology Development Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-03-27
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a magnetic latching relay capable of prolonging service life, which structurally comprises a shell part, a magnetic circuit system and a control system; the shell part comprises a base and an upper cover; the magnetic circuit system comprises a yoke, a coil frame, an iron core, magnetic steel, a pushing sheet, a pressing plate, an enameled wire and a coil leading-out pin; the control system comprises a magnet, a movable spring, a movable contact, a fixed contact, a movable spring seat and a fixed spring seat. The utility model discloses the electric arc that can effectively break out of relay for the life-span of relay is longer.

Description

Magnetic latching relay capable of prolonging service life

Technical Field

The utility model relates to a technical field is made to the relay, especially relates to a can improve magnetic latching relay in life-span.

Background

The relay is an electronic control device, which has a control system (also called input loop) and a controlled system (also called output loop), and is usually applied to an automatic control circuit, and it is actually an "automatic switch" that uses a small current to control a large current, and with the continuous development of national science and technology, products such as prepaid meters, smart capacitors, smart compound switches, etc. are more and more widely applied to smart grids.

The magnetic latching relay is a novel relay developed in recent years and is also an automatic switch. As with other electromagnetic relays, it acts to automatically turn on and off the circuit. The magnetic latching relay is an electric control device which is kept in a closed or open state only by magnetic force generated by a permanent magnet in a coil magnetic circuit system, and the mutual conversion between the closed state and the open state is completed only by exciting a coil in the coil magnetic circuit system by forward or reverse direct current pulse voltage with a certain width and then triggering an armature component to act and linking a transmission part to act.

The magnetic blow-out technique is by a large amount of use on products such as circuit breaker, contactor, utilizes magnetic force to come the arc extinguishing because electric arc itself is just a great electric current, utilizes the magnetic blow-out coil to lead to the electric current, and the magnetic field that leans on the coil to produce lengthens electric arc, lets electric arc extinguish automatically, and such way structure is complicated, and the product is bulky, and high in manufacturing cost, the utility model discloses the product utilizes the principle of magnetic blow to use on the magnetic latching relay to improve the life of magnetic latching relay, at present market in relay field the inside not improve the life-span of relay itself from this technique yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can improve life-span magnetic latching relay to the electric arc that solves the prior art existence burns the candle contact and leads to the adhesion of relay contact, can not normally divide absolutely, and then damages the technical problem of circuit.

Therefore, the utility model provides a can improve magnetic latching relay in life-span, its structure includes: the device comprises a shell part, a magnetic circuit system and a control system; the shell part comprises a base and an upper cover; the magnetic circuit system comprises a yoke, a coil frame, an iron core, magnetic steel, a pushing sheet, a pressing plate, an enameled wire and a coil leading-out pin; the control system comprises a magnet, a movable spring, a movable contact, a fixed contact, a movable spring seat and a fixed spring seat.

Preferably, a clamping groove for positioning and fixing each part is designed on the base.

Preferably, the coil leading-out pins are correspondingly inserted into the jacks of the framework, and the wire head and the wire tail of the enameled wire wound on the framework are respectively welded on the coil leading-out pins.

Preferably, the iron core penetrates through the coil frame, then the two ends of the iron core are sleeved into the yoke respectively, and riveting is carried out firmly by using riveting machine equipment.

Preferably, the magnetic steel, the pushing piece and the pressing plate are respectively assembled on the base of the shell part in a matching manner.

Preferably, the magnet is placed directly below between the moving contact and the stationary contact.

Preferably, the movable contact is riveted on the movable spring plate in a riveting mode, and the fixed contact is riveted on the fixed spring seat in a riveting mode.

The utility model discloses beneficial effect with the prior art contrast includes:

1. the utility model discloses the product utilizes the principle of magnetism to blow to apply on magnetic latching relay to improve magnetic latching relay's life, uses permanent magnet to provide magnetic force and lengthens electric arc, lets electric arc extinguish automatically, avoids electric arc burning candle movable, stationary contact to lead to relay contact adhesion, can not normally divide absolutely, damage the circuit; thereby effectively prolonging the service life of the relay.

2. The magnet of the utility model is arranged right below the moving contact and the static contact, as shown in figure 1, thus effectively breaking the electric arc between the relay contacts, as shown in figure 2; the magnet placement method can be effectively designed in single-phase (13 in figure 3), two-phase (25 and 26 in figure 4) and three-phase (27, 28 and 29 in figure 5) magnetic latching relays, and belongs to the same technology; built-in magnet has certain degree of difficulty in the relay, the utility model discloses magnet is placed in the less space of make full use of, and the magnetic field that can also avoid magnet simultaneously produces the influence to the relay.

Drawings

Fig. 1 is a schematic diagram of the positions of the contacts and the magnets of the present invention.

Fig. 2 is a schematic view of the magnetic arc discharge of the present invention.

Fig. 3 is a schematic diagram of a single-phase relay.

Fig. 4 is a schematic diagram of the magnet position of the dual phase relay.

Fig. 5 is a schematic diagram of the magnet position of a three-phase relay.

Wherein, 1 is a static contact, 2 is a magnet, 3 is a movable contact, 4 is a movable reed, 5 is a static spring seat, 6 is a movable spring seat, 7 is a static contact, 8 is an electric arc, 9 is a magnet, 10 is a movable contact, 11 is a shell, 12 is a movable reed, 13 is a magnet, 14 is a static contact, 15 is a movable contact, 16 is a static spring seat, 17 is a pushing piece, 18 is a pressing plate, 19 is a magnetic steel, 20 is a movable spring seat, 21 is a yoke, 22 is a lead pin, 23 is a coil frame, 24 is an iron core, 25 is a magnet position, 26 is a magnet position, 27 is a magnet position, 28 is a magnet position, and 29 is a magnet position.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.

Examples

As shown in fig. 3, the structure of the magnetic latching relay capable of prolonging the service life comprises three major parts, namely a plastic shell part, a magnetic circuit system and a control system, wherein the plastic shell part comprises a base and an upper cover, the magnetic circuit system comprises a yoke 21, a coil rack 23, an iron core 24, magnetic steel 19, a pushing sheet 17, a pressing plate 18, an enameled wire and coil leading-out pins, the coil leading-out pins are correspondingly inserted into jacks of a framework, the head and the tail of the enameled wire wound on the framework are respectively welded on the coil leading-out pins, the iron core penetrates through the coil rack and then the two ends are respectively sleeved into the yoke 21, riveting is firmly carried out by using riveting machine equipment, wherein the magnetic steel 19, the pushing sheet 17 and the pressing plate 18 are respectively assembled on the base of the plastic shell part in a matching way, the control system is formed by combining a magnet 2, a movable spring 4, a stationary contact 1, a movable, the static contact 1 is riveted on the static spring seat 5 in a riveting mode, and the movable contact 3 is riveted on the movable spring 4 in a riveting mode; the clamping grooves for positioning and fixing the parts are designed on the base, so that the parts are positioned in a reserved mode and are matched tightly.

The utility model discloses the product utilizes the principle of magnetism blowing to use on magnetic latching relay to improve magnetic latching relay's life, the utility model discloses an use the coil to provide the magnetic force arc extinguishing, use permanent magnet to provide magnetic force and lengthen electric arc, let electric arc extinguish automatically, avoid electric arc burning candle to move, the stationary contact leads to relay contact adhesion, can not normally divide absolutely, damages the circuit, thereby effectively improves the life-span of relay.

The placement position of the permanent magnet is more important, the magnet 2 of the utility model is placed right below the moving contact 1 and the fixed contact 3, as shown in the position of figure 1, thus effectively breaking the electric arc between the relay contacts, as shown in figure 2; the magnet placement method can be effectively designed in single-phase (13 in figure 3), two-phase (25 and 26 in figure 4) and three-phase (27, 28 and 29 in figure 5) magnetic latching relays, and belongs to the same technology; built-in magnet has certain degree of difficulty in the relay, the utility model discloses magnet is placed in the less space of make full use of, and the magnetic field that can also avoid magnet simultaneously produces the influence to the relay, and current prior art has not yet passed through the utility model discloses a magnetism is pulled electric arc technique and is improved the life-span of relay itself.

Claims

1. A magnetic latching relay capable of improving service life is characterized in that: the structure includes: the device comprises a shell part, a magnetic circuit system and a control system; the shell part comprises a base and an upper cover;

the magnetic circuit system comprises a yoke, a coil frame, an iron core, magnetic steel, a pushing sheet, a pressing plate, an enameled wire and a coil leading-out pin; the coil leading-out pins are correspondingly inserted into the jacks of the framework, the wire head and the wire tail of the enameled wire wound on the framework are respectively welded on the coil leading-out pins, the yoke iron is respectively sleeved at the two ends of the iron core after the iron core passes through the coil rack, and the magnetic steel, the pushing sheet and the pressing plate are respectively assembled on the base of the shell part in a matching way;

the control system comprises a magnet, a movable spring, a movable contact, a fixed contact, a movable spring seat and a fixed spring seat; the magnet is arranged right below the space between the movable contact and the fixed contact, the movable contact is connected with the movable spring, and the fixed contact is connected with the fixed spring seat.

2. The magnetic latching relay for improving life span of claim 1, wherein: the base is provided with a clamping groove for positioning and fixing each part.

3. The magnetic latching relay for improving life span of claim 1, wherein: and after the iron core penetrates through the coil rack, two ends of the iron core are respectively sleeved into the yoke, and riveting is carried out firmly by using riveting machine equipment.

4. The magnetic latching relay for improving life span of claim 1, wherein: the movable contact is riveted on the movable spring plate in a riveting mode, and the static contact is riveted on the static spring seat in a riveting mode.