CN210272204U - Arc breaking assembly for enhancing arc breaking capacity of relay - Google Patents

Abstract

The utility model discloses an arc-breaking component of reinforcing relay arc-breaking ability, comprising a base plate, the bottom plate is equipped with the pin, the bottom plate upside is equipped with the coil former, the coil former is equipped with the ladle copper line, the pin with the ladle copper line meets, the inside iron core that is equipped with of coil former, the outside is equipped with the coil, near the iron core is equipped with armature, near the iron core is equipped with movable spring and conducting strip, the coil former top is equipped with the yoke, the bottom plate downside is equipped with quiet spring, quiet spring is equipped with the stationary contact, is close to the stationary contact is equipped with the magnet steel, quiet spring downside is equipped with screw subassembly and load protective sheath. The utility model discloses use permanent magnetism to blow out quick arc extinguishing, do not change the original structure of relay, also do not produce other influences to the relay, can directly reform transform, simple structure easily realizes, along with the increase of permanent magnetism magnetic flux, the arc extinguishing ability lasts the reinforcing, can adjust product arc extinguishing ability as required.

Description

Arc breaking assembly for enhancing arc breaking capacity of relay

Technical Field

The utility model belongs to the arc-breaking subassembly specifically is an arc-breaking subassembly of reinforcing relay arc-breaking ability.

Background

Under the condition of direct current load, the relay has arc discharge when the relay contact is switched on and off, and the continuous arc can cause the sudden temperature rise and the splash of the relay contact, thereby being an important factor for the final failure of the relay; therefore, in order to improve the electrical performance of the relay, the arc breaking capacity of the relay is the most important performance parameter; the conventional relay arc breaking is realized by enlarging the contact gap, and the gap needs to be continuously enlarged along with the rise of direct-current voltage; the increase of the contact gap arc breaking can not only affect the overall dimension of the relay, but also directly cause the rise of the pull-in voltage of the relay, the larger the gap is, the larger the magnetic force required to be generated by the driving coil is, and the power consumption of the coil needs to be increased, which is not in accordance with the development trend of energy conservation and environmental protection of the relay.

An electromagnetic relay (see patent number: CN 201320818763.8) in the prior art discloses a 'double-gap bridge type small-sized sealed electromagnetic relay', in the utility model, two contact parts of movable reeds are connected and conducted with each other, a single-side movable closing or movable breaking contact group adopts a double-contact and double-gap bridge type structure to break and break high voltage, the arc breaking capacity is doubled compared with that of a conventional rotary type and clap and type relay, and the capacity of breaking and breaking high voltage and large load of the relay is greatly improved on the basis of not increasing the size and the appearance. However, because this utility model has increased contact number and clearance quantity, lead to the manufacturing process requirement to the relay higher, the cost improves.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, an arc breaking assembly for enhancing the arc breaking capacity of a relay is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the arc breaking assembly comprises a base plate, wherein the base plate is provided with a lead pin, a coil frame is arranged on the upper side of the base plate and provided with a steel-clad copper wire, the lead pin is connected with the steel-clad copper wire, an iron core is arranged inside the coil frame, a coil is arranged outside the coil frame, an armature is arranged close to the iron core, a movable spring is arranged close to the armature, a conducting strip is arranged close to the movable spring, a yoke is arranged at the top of the coil frame, a static spring is arranged on the lower side of the base plate, a static contact is arranged on the static spring, magnetic steel with high arc breaking capacity is arranged close to the static contact, and a screw assembly is arranged on the lower.

The magnetic steel has two, is located near two pairs of contacts respectively, all embedded in the bottom plate, beneficial effect sets up like this and makes the electric arc that produces to every pair of contacts can both effectively be blown out by the magnetic steel, reaches good arc extinguishing effect.

Preferably, connect yoke with armature is equipped with the extension spring, and beneficial effect plays the effect of restoring to the throne: when the coil is de-energized and demagnetized, the tension spring pulls the armature to complete the reset action, and the moving contact and the static contact are disconnected.

Preferably, the screw assembly is provided with a press riveting screw, a gasket is arranged close to a nut of the press riveting screw, a spring washer is arranged close to the gasket, and a nut is arranged close to the spring washer.

Preferably, the screw subassembly outside is equipped with the load protective sheath, and beneficial effect is through it to screw subassembly insulating, plays dustproof and waterproof effect simultaneously.

Preferably, the fixed contact is riveted on the fixed spring, the movable spring is provided with a movable contact point and is riveted on the movable spring and the conductive sheet, and the switch-on and switch-off control circuit has the advantages that the fixed contact point and the movable contact point are arranged to be mutually contacted and separated to control the on and off of the circuit.

Preferably, there are two terminal pins, all run through the coil former, and beneficial effect is through setting up 2 terminal pins and connecting the coil, and one connects the positive pole, and one connects the negative pole, realizes the circular telegram return circuit.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses use permanent magnetism to blow out quick arc extinguishing, do not change the original structure of relay, also do not produce other influences to the relay, can directly reform transform, simple structure easily realizes, along with the increase of permanent magnetism magnetic flux, the arc extinguishing ability lasts the reinforcing, can adjust product arc extinguishing ability as required.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of an electromagnetic system of the present invention;

fig. 3 is a schematic bottom view of the electromagnetic system of the present invention;

fig. 4 is a schematic cross-sectional view of the bottom assembly of the present invention.

In the figure: 1. a bobbin; 1-1, a coil; 2. a yoke; 3. a steel-clad copper wire; 4. an iron core; 5. a tension spring; 6. an armature; 7. a movable spring; 8. a conductive sheet; 9. a movable contact; 9-1, through holes; 10. a base plate; 11. pseudo-quiet; 12. a static spring; 13. a stationary contact; 14. a screw assembly; 14-1, riveting a screw; 14-2, a nut; 14-3, a spring washer; 14-4, a gasket 15 and magnetic steel; 16. a terminal pin; 17. a load protection sleeve.

Detailed Description

The first embodiment is as follows:

the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, an arc breaking assembly for enhancing the arc breaking capability of a relay includes a base plate 10, the base plate 10 is provided with two terminal pins 16, and the two terminal pins 16 both penetrate through the coil rack 1, which has the beneficial effects that 2 terminal pins 16 are arranged to connect a coil 1-1, one is connected with a positive electrode, and the other is connected with a negative electrode, so as to realize a power-on loop. The coil frame 1 is arranged on the upper side of the bottom plate 10, the coil frame 1 is provided with a steel-clad copper wire 3, the terminal pin 16 is connected with the steel-clad copper wire 3, the coil frame 1 is internally provided with an iron core 4, the outside of the coil frame is provided with coils 1-1, the armature 6 is arranged close to the iron core 4, the movable spring 7 is arranged close to the armature 6, the conductive plate 8 is arranged close to the movable spring 7, the top of the coil frame 1 is provided with a yoke 2, the upper side of the yoke 2 is provided with a tension spring 5 for connecting the yoke 2 and the armature 6, and the coil frame has the advantages that: when the coil 1-1 is de-energized and demagnetized, the tension spring 5 pulls the armature 6 to complete the reset action, and the movable contact 9 and the fixed contact 13 are disconnected; the lower side of the bottom plate 10 is provided with a static spring 12, the static spring 12 is provided with a static contact 13, the static contact 13 is riveted on the static spring 12, the movable spring 7 is provided with a movable contact 9 and is riveted on the movable spring 7 and the conducting strip 8, and the circuit switching device has the advantages that the circuit switching can be controlled by setting the mutual contact and separation of the static contact 13 and the movable contact 9; the magnetic steels 15 are arranged close to the fixed contacts 13, two of the magnetic steels 15 are respectively arranged near the two pairs of contacts and are embedded in the bottom plate 10, and the arc extinguishing device has the advantages that the arrangement enables the electric arc generated by each pair of contacts to be effectively blown out by the magnetic steels, so that a good arc extinguishing effect is achieved; the lower side of the static spring 12 is provided with a screw assembly 14, the screw assembly 14 is provided with a riveting screw 14-1, a gasket 14-4 is arranged on a nut close to the riveting screw 14-1, a spring washer 14-3 is arranged close to the gasket 14-4, and a nut 14-2 is arranged close to the spring washer 14-3, so that the static spring 12 is firmly fixed with the base 10 by using the screw assembly 14, and the fault caused by loose fit of a device is prevented; the screw assembly 14 is externally provided with a load protection sleeve 17, and has the advantages that the screw assembly 14 is insulated through the load protection sleeve, and meanwhile, the dustproof and waterproof effects are achieved.

The working principle of the relay assembly is as follows: the terminal pin 16 is electrified, the coil 1-1 is powered through the steel-clad copper wire 3, the coil 1-1 generates a magnetic field, the iron core 4 is magnetized, the armature 6 is attracted, the armature 6 and the iron core 4 are attracted, the armature 6 drives the movable spring 7, the movable contact 9 is in contact with the static contact 13, and conduction is realized; when the coil 1-1 is powered off, the iron core 4 begins to demagnetize and lose magnetic force, and the movable spring 7 has elasticity and can restore to the original state and disconnect the two contact points, so that the armature 6 is driven to be separated from the iron core 4 by the elasticity of the movable spring 7.

The utility model discloses a solve the relay contact and produce this problem of can't extinguish fast of electric arc when the disconnection, increase permanent magnetic mechanism on relay contact next door, when the contact was disconnected, produce electric arc between the contact, the ion in the electric arc can fast migration and the air energy exchange takes place around under the influence of next door permanent magnetism, can rapid cooling, the process that extinguishes with higher speed of arcing plays the effect of protection contact.

The utility model discloses use permanent magnetism to blow out quick arc extinguishing, do not change the original structure of relay, also do not produce other influences to the relay, can directly reform transform, simple structure easily realizes, along with the increase of permanent magnetism magnetic flux, the arc extinguishing ability lasts the reinforcing, can adjust product arc extinguishing ability as required.

Example two:

the difference of this example from example 1 is that:

each magnetic steel is arranged on each of two sides of each pair of moving and static contacts, so that the situation that electric arcs cannot be blown out due to the fact that the permanent magnet structure is far away from the other side is avoided, arc breaking capacity is higher, safety is higher, and contact protection effect is better.

Claims (7)

1. An arc-breaking assembly for enhancing arc-breaking capacity of a relay, comprising a base plate (10), characterized in that: the coil frame is characterized in that the bottom plate (10) is provided with lead pins (16), the coil frame (1) is arranged on the upper side of the bottom plate (10), the coil frame (1) is provided with a steel-covered copper wire (3), the lead pins (16) are connected with the steel-covered copper wire (3), an iron core (4) is arranged inside the coil frame (1), a coil (1-1) is arranged outside the coil frame, an armature (6) is arranged near the iron core (4), a movable spring (7) is arranged near the armature (6), a conducting plate (8) is arranged near the movable spring (7), a yoke (2) is arranged at the top of the coil frame (1), a static spring (12) is arranged on the lower side of the bottom plate (10), a static contact (13) is arranged on the static spring (12), magnetic steel (15) is arranged near the static contact (13), and.

2. The arc-breaking assembly for enhancing the arc-breaking capacity of the relay according to claim 1, wherein: the two magnetic steels (15) are respectively positioned near the two pairs of contacts and are all embedded in the bottom plate (10).

3. The arc-breaking assembly for enhancing the arc-breaking capacity of the relay according to claim 1, wherein: a tension spring (5) is arranged for connecting the yoke iron (2) and the armature iron (6).

4. The arc-breaking assembly for enhancing the arc-breaking capacity of the relay according to claim 1, wherein: the screw assembly (14) is provided with a rivet pressing screw (14-1), a gasket (14-4) is arranged on a nut close to the rivet pressing screw (14-1), a spring washer (14-3) is arranged close to the gasket (14-4), and a nut (14-2) is arranged close to the spring washer (14-3).

5. The arc-breaking assembly for enhancing the arc-breaking capacity of the relay according to claim 3, wherein: and a load protection sleeve (17) is arranged outside the screw component (14).

6. The arc-breaking assembly for enhancing the arc-breaking capacity of the relay according to claim 1, wherein: the static contact (13) is riveted on the static spring (12), the movable spring (7) is provided with a movable contact (9) which is riveted on the movable spring (7) and the conducting strip (8).

7. The arc-breaking assembly for enhancing the arc-breaking capacity of the relay according to claim 1, wherein: two of the terminal pins (16) penetrate through the coil rack (1).

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