CN219716761U

CN219716761U - Electromagnetic relay

Info

Publication number: CN219716761U
Application number: CN202320958331.0U
Authority: CN
Inventors: 周振勃; 王友荣; 王爱; 朱依依
Original assignee: Shenle Co ltd
Current assignee: Shenle Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-09-19
Anticipated expiration: 2033-04-20

Abstract

The utility model provides an electromagnetic relay, which comprises a shell, a support frame and a coil assembly, wherein the support frame and the coil assembly are fixedly arranged in the shell, an armature is arranged at one side of the coil assembly, two ends of the armature are respectively provided with a positioning end and a swinging end, the positioning end is in positioning fit with the support frame, the swinging end is in transmission connection with a push rod, one end of the push rod, which is far away from the armature, is matched with a contact assembly, the positioning end of the armature comprises a first positioning plate which extends towards the direction of the support frame and protrudes, and the first positioning plate is propped against the end face of one side, which is far away from the coil assembly, of the support frame; through set up at the locating terminal of armature with support complex first locating plate, with the armature locating terminal is spacing, further promotes the stability of armature when the swing, makes electromagnetic relay even its inner structure all can stable cooperation when inverting.

Description

Electromagnetic relay

Technical Field

The utility model relates to the field of relays, in particular to an electromagnetic relay.

Background

The relay is an electric control device, and is an electric appliance that causes a predetermined step change in the controlled quantity in an electric output circuit when the change in the input quantity reaches a prescribed requirement. It has an interactive relationship between the control system (also called input loop) and the controlled system (also called output loop). It is commonly used in automated control circuits and is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, the circuit plays roles of automatic regulation, safety protection, circuit switching and the like.

The applicant invented a relay (CN 201975345) with reasonable structure, stable performance and convenient production before, it includes the casing and installs the support frame in the casing, be provided with the iron core on the support frame, the iron core is outward to wind and is equipped with the coil, coil input department electricity is connected with the coil and draws forth the foot, an axial upper end of iron core still is provided with an armature, this armature is including locating terminal and swinging end, still contradict outward and be provided with the push rod this swinging end, the other end that contacts the end with armature on this push rod still is equipped with a movable contact piece, the movable contact piece is located the motion orbit of push rod and cooperates with the push rod, the movable contact piece both sides are equipped with first static contact piece and second static contact piece respectively, be equipped with the draw-in groove on the coil draw-out foot, this draw-in groove constitutes joint cooperation with the upper input of coil. Through the joint cooperation of draw-in groove and coil input on the coil pin, once the coil pin breaks, then can replace with new coil pin, this kind of simple structure, convenient operation have also practiced thrift the resource simultaneously.

On the basis, the applicant finds that the shaking phenomenon can occur in use due to the fact that the armature has a swinging end, particularly in the process of transportation and installation, the shaking and shifting armature can influence the use of the electromagnetic relay, and on the basis, the applicant further improves the relay, and the stability of the armature is further improved while the movement stroke of the armature is ensured.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art and provides an electromagnetic relay, which adopts the following technical scheme:

the utility model provides an electromagnetic relay, includes the casing, fixed support frame and the coil pack that sets up in the casing, still is provided with the armature that is located coil pack one side, and the both ends of this armature are locating terminal and swing end respectively, locating terminal and support frame location cooperation, swing end transmission is connected with the push rod, the one end that armature was kept away from to the push rod cooperates with the contact pack, the locating terminal of armature is including extending and convex first locating plate to the support frame direction, just first locating plate offsets with the support frame one side terminal surface that coil pack was kept away from.

Preferably, a first through hole is formed in one end, in transmission connection with the swing end of the armature, of the push rod, and a second positioning part is arranged in the first through hole in a protruding mode; the swinging end of the armature is provided with a second through hole, and the swinging end of the armature is penetrated into the first through hole, and the second positioning part extends into the second through hole.

Preferably, the lower end part of the first through hole is provided with a first inclined surface inclined outwards, and the upper end part of the swinging end is provided with a third inclined surface, so that the armature has a swinging space in the first through hole when swinging; the third inclined plane is opposite to the first inclined plane in inclination direction, so that the swinging end has inclination space when inclining rightwards.

Preferably, the lower end of the second positioning part has a second inclined surface inclined outwards, so that the second positioning part has a left swing space in the second through hole. The above-mentioned "outward inclination" means inclination directed away from the axial direction of the first through hole, even if the first through hole has an inclined surface with a tendency to expand outward,

preferably, the armature comprises a positioning end, a swinging end and an armature body positioned between the positioning end and the swinging end, the width of the swinging end is smaller than that of the armature body, and the first through hole only can be used for the swinging end to pass through, and the armature is further limited through the structure, so that the armature is not easy to break away from the first through hole of the push rod while being connected with the push rod in a swinging way.

Preferably, the push rod is further provided with a positioning protrusion, a travel groove for accommodating the push rod is formed in the shell, and a limit bump for limiting the movement track of the push rod by abutting against the positioning protrusion is arranged in the travel groove, so that the push rod pulls the movable contact piece to move in a certain travel.

The beneficial effects of the utility model are as follows: through set up at the locating terminal of armature with support complex first locating plate, with the armature locating terminal is spacing, further promotes the stability of armature when the swing, makes electromagnetic relay even its inner structure all can stable cooperation when inverting.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic overall structure of embodiment 1;

fig. 2 is a schematic diagram of an armature structure according to embodiment 1;

fig. 3 is a side view of the armature and pushrod of example 1;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is an enlarged view of FIG. 4 at B;

in the figure, a 1-coil lead-out pin, a 2-coil assembly, a 3-armature, a 301-positioning end, a 302-swinging end, a 31-first positioning part, a 32-second through hole, a 33-third inclined plane, a 4-shell, a 41-limit bump, a 5-push rod, a 51-first through hole, a 511-first inclined plane, a 52-second positioning part, a 521-second inclined plane, a 53-positioning protrusion and a 6-support frame.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1-5, an electromagnetic relay comprises a housing 4, a support frame 6 and a coil assembly 2 which are fixedly arranged in the housing 4, and an armature 3 positioned at one side of the coil assembly 2, wherein two ends of the armature 3 are a positioning end 301 and a swinging end 302 respectively, the positioning end 301 is in positioning fit with the support frame 6, the swinging end 302 is in transmission connection with a push rod 5, one end of the push rod 5 away from the armature 3 is matched with a contact assembly, the positioning end 301 of the armature 3 comprises a first positioning plate 31 extending towards the direction of the support frame 6 and protruding, and the first positioning plate 31 abuts against the end face of one side of the support frame 6 away from the coil assembly 2.

The contact assembly comprises a movable contact piece and a first static contact piece and a second static contact piece which are respectively arranged on two sides of the movable contact piece, wherein the first static contact piece is contacted with the movable contact piece in a non-energized state, and the second static contact piece is positioned on a motion track of the movable contact piece; further, the supporting frame 6 is a yoke for increasing the magnetic force of the iron core in the coil.

A first through hole 51 is formed at one end of the push rod 5, which is abutted against the swinging end 302 of the armature 3, and a second positioning part 52 is arranged in the first through hole 51 in a protruding manner;

the swing end 302 of the armature 3 is provided with a second through hole 32, and the swing end 302 of the armature 3 is inserted into the first through hole 51, and the second positioning portion 52 extends into the second through hole 32.

The lower end of the first through hole 51 has a first inclined surface 511 inclined outward, and the upper end of the swing end 302 is provided with a third inclined surface 33, so that the armature 3 has a swing space in the first through hole 51 when swinging. As shown in fig. 5, the third inclined surface has an inclined space when the swing end is inclined to the left in the opposite direction to the first inclined surface.

The lower end portion of the second positioning portion 52 has a second inclined surface 521 inclined outward so that the second positioning portion 52 has a leftward swing space in the second through hole 32. The above-mentioned "outward inclination" means an inclination directed away from the axial center direction of the first through hole 51, even if the first through hole 51 has an inclined surface with a tendency to expand outward,

the armature 3 comprises a positioning end 301, a swinging end 302 and an armature body positioned between the positioning end 301 and the swinging end 302, the width of the swinging end 302 is smaller than that of the armature body, and the first through hole 51 only can be penetrated by the swinging end 302.

The push rod 5 is further provided with a positioning protrusion 53, a travel groove for accommodating the push rod 5 is arranged in the shell 4, and a limit bump 41 for abutting against the positioning protrusion 53 to limit the movement track of the push rod 5 is arranged in the travel groove.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides an electromagnetic relay, includes casing (4), fixed support frame (6) and coil pack (2) that set up in casing (4), still is provided with armature (3) that are located coil pack (2) one side, and the both ends of this armature (3) are location end (301) and swing end (302) respectively, location end (301) and support frame (6) locate fit, swing end (302) transmission is connected with push rod (5), the one end and the contact subassembly cooperation of armature (3) are kept away from to push rod (5), its characterized in that: the positioning end (301) of the armature (3) comprises a first positioning plate (31) extending towards the direction of the support frame (6) and protruding, and the first positioning plate (31) abuts against the end face of one side, far away from the coil assembly (2), of the support frame (6).

2. The electromagnetic relay according to claim 1, wherein: one end of the push rod (5) in transmission connection with the swing end (302) of the armature (3) is provided with a first through hole (51), and a second positioning part (52) is arranged in the first through hole (51) in a protruding mode;

the swinging end (302) of the armature (3) is provided with a second through hole (32), and the swinging end (302) of the armature (3) is penetrated into the first through hole (51) and enables the second positioning part (52) to extend into the second through hole (32).

3. The electromagnetic relay according to claim 2, wherein: the lower end of the first through hole (51) is provided with a first inclined surface (511) inclined outwards, and the upper end of the swinging end (302) is provided with a third inclined surface (33), so that the armature (3) has a swinging space in the first through hole (51) when swinging.

4. The electromagnetic relay according to claim 2, wherein: the lower end part of the second positioning part (52) is provided with a second inclined surface (521) which is inclined outwards, so that the second positioning part (52) is provided with a swinging space in the second through hole (32).

5. The electromagnetic relay according to claim 2, wherein: the armature (3) comprises a positioning end (301), a swinging end (302) and an armature body arranged between the positioning end (301) and the swinging end (302), the width of the swinging end (302) is smaller than that of the armature body, and the first through hole (51) can only be penetrated by the swinging end (302).

6. The electromagnetic relay according to claim 1, wherein: the push rod (5) is further provided with a positioning protrusion (53), a travel groove for accommodating the push rod (5) is formed in the shell (4), and a limit protrusion (41) for limiting the movement track of the push rod (5) by abutting against the positioning protrusion (53) is arranged in the travel groove.