CN219759473U - Overcurrent relay - Google Patents

Abstract

The utility model provides an overcurrent relay, which belongs to the technical field of relays and comprises a bottom plate, a shell, wherein the shell is arranged at the upper end of the bottom plate, a buckle is fixedly connected to the lower end of the bottom plate, a first electromagnet is fixedly connected to the upper end of the bottom plate, a second electromagnet is fixedly connected to the upper end of the bottom plate, a supporting rod is fixedly connected to the upper end of the bottom plate, a low-high-power line penetrates into the shell, the low-power line winds the surfaces of the second electromagnet and the supporting rod, the first electromagnet and the second electromagnet generate magnetic force after being electrified, the first electromagnet and the magnets are in homopolar repulsion, the other end of the armature is pushed upwards to descend, the second electromagnet and the armature are in opposite attraction to pull the armature downwards, and the armature is in contact with the high-power line, so that the situation that the armature cannot generate insufficient magnetic force is solved, continuous power supply can be maintained, attractive force is strong, and automatic stop is convenient and quick after power failure is realized.

Description

Overcurrent relay

Technical Field

The utility model belongs to the technical field of relays, and particularly relates to an overcurrent relay.

Background

A relay is an "automatic switch" that operates by controlling a large current with a small current, and switches a circuit by automatically turning on/off. In the circuit, through remote control, the functions of safety protection, circuit switching and the like can be realized by using a relay, and the circuit is widely applied to the fields of power management, instruments and meters, automatic control, communication connection and the like.

The authorization publication number CN205789752U describes a miniaturized high-current relay that includes a substrate, a first connector, a second connector, a yoke, a planar coil, an elastic conductor, a movable contact, a stationary contact, a permanent magnet, a shield, and a buckle; the small-sized high-current relay replaces coils and iron cores in the traditional electromagnetic relay by using the planar coil, so that the volume of the small-sized high-current relay is greatly reduced. The protection cover is an antimagnetic protection cover, and can effectively prevent the interference of an external magnetic field on the miniaturized heavy-current relay. The buckle is a cantilever T-shaped buckle, and the use of the buckle is beneficial to the fixation and the disassembly of the miniaturized high-current relay.

The coil and the iron core in traditional electromagnetic relay can be replaced to above-mentioned patent, very big reduction small-size heavy current relay's volume, but when the permanent magnet drove the elastic conductor downward opposite phase to inhale in above-mentioned patent, long-time repeated operation can make the elastic conductor appear breaking the design, reduces the appeal between, makes the elastic conductor appear the condition of resilience easily.

Disclosure of Invention

The utility model aims to provide an overcurrent relay, which aims to solve the problems that when a permanent magnet drives an elastic conductor to attract downwards in opposite directions in the prior art, the elastic conductor is broken and shaped after repeated operation for a long time, attractive force between the elastic conductor and the elastic conductor is reduced, and the elastic conductor is easy to rebound.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an overcurrent relay, comprising:

a bottom plate;

the shell is arranged at the upper end of the bottom plate;

the buckle is fixedly connected to the lower end of the bottom plate;

the first electromagnet is fixedly connected to the upper end of the bottom plate;

the second electromagnet is fixedly connected to the upper end of the bottom plate;

the support rod is fixedly connected to the upper end of the bottom plate;

the armature is arranged at one side end of the supporting rod;

the spool rotates and is connected in the supporting rod and the armature;

the first fixing device is fixedly connected to the upper end of the base plate;

the second fixing device is fixedly connected to the upper end of the bottom plate;

the magnet is arranged at the lower end of the armature;

the threading hole is formed in one side end of the shell.

As a preferable scheme of the utility model, one side end of the shell is fixedly connected with a fixed block.

As a preferable scheme of the utility model, the two side ends of the shell are fixedly connected with the anti-slip strips.

As a preferable scheme of the utility model, the upper end of the bottom plate is fixedly connected with a sleeve, the lower inner wall of the sleeve is fixedly connected with a spring, a supporting rod is arranged in the spring, and the supporting rod is fixedly connected to the upper side of the spring.

In a preferred embodiment of the present utility model, the material of the strut is aluminum.

As a preferable mode of the utility model, the inner wall of the shell is provided with an insulating layer.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this scheme, penetrate the shell with low high electric quantity line in, low electric quantity line winding second electro-magnet and bracing piece surface, first electro-magnet and second electro-magnet produce magnetic force after the circular telegram, first electro-magnet and magnet homopolar repel each other, push up the other end with the armature and can descend, the second electro-magnet attracts armature opposite side with the armature opposite side and draws down, the armature can with high electric quantity line contact, thereby realize that little electric quantity drives big electric quantity, the condition that the armature can not go out the magnetic force inadequately has been solved, sustainable power supply can be kept, the appeal is strong, automatic stop convenient and fast after the outage.

2. In this scheme, utilize the bolt to penetrate in the fixed block, can bind shell and bottom plate for equipment in shell and the bottom plate does not contact with the outside, when one side of armature was pushed down, can extrude the bracing piece to in the sleeve, make the elasticity compression of spring, first electro-magnet and second electro-magnet do not produce magnetic force when the outage, and the elasticity reduction of spring is bounced back the bracing piece initial position, keeps the steady of armature.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a front perspective view of the present utility model;

FIG. 2 is a cross-sectional perspective view of the present utility model;

fig. 3 is an enlarged view of a portion of the sleeve of fig. 2 in accordance with the present utility model.

In the figure: 1. a housing; 2. a bottom plate; 3. a buckle; 4. a fixed block; 5. an anti-slip strip; 6. a first electromagnet; 7. a support rod; 8. an armature; 9. a first fixing device; 10. a second fixing device; 11. i-shaped wheel; 12. a magnet; 13. a second electromagnet; 14. a sleeve; 15. a spring; 16. a support rod; 17. and a threading hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, the present utility model provides the following technical solutions:

an overcurrent relay, comprising:

a base plate 2;

the shell 1 is arranged at the upper end of the bottom plate 2;

the buckle 3 is fixedly connected to the lower end of the bottom plate 2;

the first electromagnet 6 is fixedly connected to the upper end of the bottom plate 2;

the second electromagnet 13 is fixedly connected to the upper end of the bottom plate 2;

the support rod 7 is fixedly connected to the upper end of the bottom plate 2;

the armature 8, the armature 8 locates one side end of the strut 7;

the spool 11, the spool 11 is connected in the strut 7 and the armature 8 in a rotating way;

the first fixing device 9, the first fixing device 9 is fixedly connected to the upper end with the bottom plate 2;

the second fixing device 10, the second fixing device 10 is fixedly connected to the upper end of the bottom plate 2;

a magnet 12, the magnet 12 being provided at the lower end of the armature 8;

the threading hole 17, the threading hole 17 is opened at one side end of the shell 1.

In the specific embodiment of the utility model, two groups of the device are arranged, the two groups of the device are respectively positioned at two sides of the shell 1, the buckle 3 is inserted into the corresponding position holding device to be stable, a low-power line is penetrated into the threading hole 17 to enter the shell 1 and wound on the surfaces of the second electromagnet 13 and the supporting rod 16, a high-power line is penetrated into the shell 1 through the threading hole 17 at the other side, after the electric wire is electrified, the first electromagnet 6 and the second electromagnet 13 generate magnetic force, the first electromagnet 6 can repel with the like of the magnet 12 to push the armature 8 upwards, the other end of the armature 8 can descend, the spool 11 arranged in the supporting rod 7 can serve as a fulcrum of the armature 8 to play a stabilizing role, the second electromagnet 13 and the armature 8 are attracted with each other to pull the armature 8 downwards, and the armature 8 can be contacted with the high-power line at the moment, thereby realizing the driving of high power with small power, after the arrangement of the high-power line and the low-power line are both arranged, the high-power line and the low-power line can be screwed into the first fixing device 9 and the second fixing device 10, the high-power line is bound, the situation that the armature 8 cannot generate insufficient magnetic force is effectively solved, the armature 8 can be kept, the power is automatically stopped, and the power supply can be stopped conveniently and fast.

Referring to fig. 1 specifically, a fixing block 4 is fixedly connected to one side end of a housing 1.

In this embodiment: firstly, bolts penetrate into the fixed blocks 4, the shell 1 and the bottom plate 2 can be bound, so that equipment in the shell 1 and the bottom plate 2 is not contacted with the outside, and the running of internal equipment is not disturbed due to shaking.

Referring to fig. 1 specifically, two side ends of a housing 1 are fixedly connected with anti-slip strips 5.

In this embodiment: after the shell 1 is disassembled by personnel, the shell 1 can be conveniently taken down through the anti-slip strip 5, so that an anti-slip effect can be achieved.

Referring to fig. 3 specifically, a sleeve 14 is fixedly connected to an upper end of the base plate 2, a spring 15 is fixedly connected to a lower inner wall of the sleeve 14, a supporting rod 16 is disposed in the spring 15, and the supporting rod 16 is fixedly connected to an upper side of the spring 15.

In this embodiment: when one side of the armature 8 is pressed downwards, the supporting rod 16 is extruded into the sleeve 14, so that the elastic force of the spring 15 is compressed, the first electromagnet 6 and the second electromagnet 13 do not generate magnetic force when the power is off, the elastic force of the spring 15 is reduced to enable the supporting rod 16 to rebound to the initial position, and the armature 8 is kept stable and does not shake.

Referring to fig. 2, the strut 7 is made of aluminum.

In this embodiment: the material of branch 7 is aluminium, and does not possess magnetic force by itself, still can effectively support armature 8, improves armature 8's life.

Referring to fig. 1 specifically, an insulating layer is disposed on an inner wall of a housing 1.

In this embodiment: the inner wall of the shell 1 is provided with an insulating layer, so that power can not be led into the shell 1 when the device is used, and personnel can not be injured when the device is not in touch, so that the safety of the personnel is protected.

The working principle and the using flow of the utility model are as follows: the low-power line is wound on the surfaces of the second electromagnet 13 and the supporting rod 16, the high-power line penetrates into the shell 1, after being electrified, the first electromagnet 6 and the second electromagnet 13 generate magnetic force, the first electromagnet 6 and the magnet 12 repel each other like poles, the armature 8 is pushed upwards, the other end of the first electromagnet drops, the second electromagnet 13 and the armature 8 attract each other opposite to pull the armature 8 downwards, at the moment, the armature 8 is contacted with the high-power line, so that the situation that the armature 8 cannot generate insufficient magnetic force is realized, continuous power supply can be kept, attractive force is strong, and automatic stopping is convenient and fast after power failure.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. An overcurrent relay, characterized by comprising:

a bottom plate (2);

the shell (1) is arranged at the upper end of the bottom plate (2);

the buckle (3) is fixedly connected to the lower end of the bottom plate (2);

the first electromagnet (6) is fixedly connected to the upper end of the bottom plate (2);

the second electromagnet (13) is fixedly connected to the upper end of the bottom plate (2);

the support rod (7) is fixedly connected to the upper end of the bottom plate (2);

the armature iron (8), the said armature iron (8) locates one side end of the strut (7);

the spool (11) is rotationally connected in the supporting rod (7) and the armature (8);

the first fixing device (9), the said first fixing device (9) is fixedly connected to the upper end with bottom plate (2);

the second fixing device (10) is fixedly connected to the upper end of the bottom plate (2);

a magnet (12), wherein the magnet (12) is arranged at the lower end of the armature (8);

the threading hole (17), the threading hole (17) is offered in the one side end of shell (1).

2. An overcurrent relay according to claim 1, wherein: one side end of the shell (1) is fixedly connected with a fixed block (4).

3. An overcurrent relay according to claim 2, wherein: the two side ends of the shell (1) are fixedly connected with anti-slip strips (5).

4. An overcurrent relay according to claim 3 wherein: the upper end fixedly connected with sleeve (14) of bottom plate (2), the lower inner wall fixedly connected with spring (15) of sleeve (14), be equipped with bracing piece (16) in spring (15), bracing piece (16) fixed connection is in the upside of spring (15).

5. An overcurrent relay according to claim 4, wherein: the supporting rod (7) is made of aluminum.

6. An overcurrent relay according to claim 5, wherein: an insulating layer is arranged on the inner wall of the shell (1).