CN209526053U

CN209526053U - Magnetic latching relay

Info

Publication number: CN209526053U
Application number: CN201920416555.2U
Authority: CN
Inventors: 王彬
Original assignee: Suzhou Jizhong Electrical Appliances Co Ltd
Current assignee: Suzhou Jizhong Electrical Appliances Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2019-10-22
Anticipated expiration: 2029-03-29

Abstract

The utility model discloses a kind of magnetic latching relays, including yoke, armature and iron core, the armature is connect with the yoke by elasticity of spring leaf, the iron core winding has coil, the actuation end of the iron core has pole shoe, there is protrusion or groove, the armature to be equipped with magnet steel for the upper surface of the pole shoe, and the magnet steel is corresponding with the position of the iron core.The utility model adjusts the magnetic circuit gap between the iron core and armature by the difference in height that the upper surface of the protrusion or the groove and the pole shoe is constituted, to realize magnetic circuit in the attraction of armature and the balance of reset force, the armature is equipped with magnet steel, when when the armature is engaged, the magnetic circuit of the magnet steel is closed, to realize that the actuation of the armature is kept.

Description

Magnetic latching relay

Technical field

The utility model belongs to relay technical field, more particularly to a kind of magnetic latching relay.

Background technique

Relay is a kind of electronic control device, plays the work such as automatic adjustment, safeguard protection, conversion circuit in circuit With its working principle is to add certain voltage at coil both ends, will pass through certain electric current in coil, thus in magnetic circuit Upper generation galvanomagnetic-effect, armature will overcome the pulling force of return spring to be drawn to iron core under the action of electromagnetic attracting force, thus band The stationary contact on movable contact and quiet spring on dynamic spring is attracted, and reaches conducting effect in circuit；

And with energy-saving and environment-friendly needs, magnetic latching relay will be used wider and wider, it is more and more it is general after Electric appliance needs expand out magnetic and keep specification, and typical clapper type relay will realize that magnetic is kept, generally by iron core (or yoke) It is divided into two parts, seals in a permanent magnet in centre, form tandem type magnetic circuit, after coil stimulating, magnetic circuit closure, permanent magnet The magnetic force of generation can be such that armature is kept closed；The magnetic holdingization technology of existing clapper-type magnetic circuit system is to install magnet steel (there are yoke integration and yoke to divide riveting two ways) on yoke, such as notification number are as follows: the Chinese patent of CN103426690B File discloses a kind of magnetic latching relay of parallel connection type magnetic circuit, the disadvantage is that leaving coil for due to the influence of yoke and magnet steel Space become smaller, cause coil power needs become larger；In addition, since yoke needs and ability after coil and the whole riveting of iron core progress It can be packed into relay base, the presence of magnet steel and auxiliary yoke iron increases the difficulty of production technology, is unfavorable for the implementation of automation.

Utility model content

Mainly solving the technical problems that providing a kind of magnetic latching relay, the actuation end of iron core has the utility model The upper surface of pole shoe, the pole shoe has protrusion or groove, passes through the protrusion or the upper surface of the groove and the pole shoe The difference in height of composition adjusts the magnetic circuit gap between the iron core and armature, to realize magnetic circuit in the attraction of armature and multiple The balance of position power；Armature is equipped with magnet steel, and the coil of relay is powered, and iron core generates electromagnetic force and is attracted armature, at this time magnet steel Magnetic circuit be also closed, after coil blackout electromagnetic force disappear, the magnetic circuit of magnet steel (permanent magnet) is closed always, to realize the armature Actuation keep.

In order to solve the above technical problems, the technical solution that the utility model uses is: a kind of magnetic latching relay, packet Yoke, armature and iron core are included, the armature is connect with the yoke by elasticity of spring leaf, and the iron core winding has coil, described The actuation end of iron core has pole shoe, and the upper surface of the pole shoe has protrusion or groove, by the protrusion or the groove with Difference in height that the upper surface of the pole shoe is constituted adjusts the magnetic circuit gap between the iron core and armature, to realize that magnetic circuit exists The attraction of armature and the balance of reset force；

The armature is equipped with magnet steel, and the magnet steel is corresponding with the position of the iron core, the magnet steel and the iron core Position is corresponding, and the coil is powered, and iron core generates electromagnetic force and is attracted armature, and the magnetic circuit closure of the magnet steel, coil are disconnected at this time The magnetic circuit of magnet steel remains closed after electricity, to realize that the actuation of the armature is kept.

It further says, the armature has mounting groove, and the magnet steel is fixedly installed in the mounting groove.

It further says, the mounting groove is located at the side of the armature.

It further says, the mounting groove is located at the upper surface of the armature.

It further says, including magnetic guiding frame, one end of the magnetic guiding frame is fixedly connected on the armature, and the other end and institute Stating has gap between armature, the magnet steel is fixedly installed in the gap.

It further says, the side of the pole shoe has notch, adjusts the iron core to the armature by the notch Attraction.

It further says, the notch is located at the same side with the raised or described groove and the two is adjacent.

It further says, the yoke is L shape, and the L-shaped yoke includes horizontal yoke and vertical yoke, the iron core It is riveted with the horizontal yoke, one end of the reed is fixedly connected with the vertical yoke, the other end of the reed and institute Armature is stated to be fixedly connected.

The utility model has the beneficial effects that

The iron core of the relay of the utility model has pole shoe, and the upper surface of the pole shoe has protrusion or groove, passes through Difference in height that the upper surface of the protrusion or the groove and the pole shoe is constituted adjusts the magnetic between the iron core and armature Road gap, to realize magnetic circuit in the attraction of armature and balance (really the adjusting set voltage and reset electricity of reset force Pressure)；There is notch, by this notch (size) come the attraction of auxiliary adjustment relay on pole shoe；Because according to magnetic circuit original Reason, the area of iron core pole shoe is smaller, then it is bigger in attraction of the armature set position to armature, then answering needed for resetting it Position voltage is also bigger, so as to balance resetting voltage numerically as far as possible with set voltage.

The utility model relay, armature are equipped with magnet steel, and magnet steel is corresponding with the position of iron core, and the coil of relay is logical Electricity, iron core generate electromagnetic force and are attracted armature, and the magnetic circuit of magnet steel is also closed at this time, and electromagnetic force disappears after coil blackout, and magnet steel is (forever Magnet) magnetic circuit be closed always, thus realize the armature actuation keep (magnetic holding)；

Magnet steel and armature are subjected to integrated combination, its advantage is that existing electromagnetic relay coil yoke part is without doing more Change, coil space is constant can to reduce coil power dissipation, while realizing specification electromagnetic relay coil combination of the same race and keeping with magnetic Relay coil combination shares；In addition, since armature is the part of individualism, it only need to be after coil be partially loaded pedestal Armature is loaded onto, without being riveted, the implementation that more conducively automates.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the relay of the utility model；

Fig. 2 is the structural schematic diagram (pole shoe surface groove structure) of the iron core of the utility model；

Fig. 3 is the structural schematic diagram (pole shoe surface bulge structure) of the iron core of the utility model；

Fig. 4 is the structural schematic diagram of the yoke of the utility model；

Fig. 5 is the structural schematic diagram (the first structure) of the armature of the utility model；

Fig. 6 is the decomposition diagram (the first structure) of the armature of the utility model；

Fig. 7 is the structural schematic diagram (second of structure) of the armature of the utility model；

Fig. 8 is the decomposition diagram (second of structure) of the armature of the utility model；

Fig. 9 is the magnetic circuit schematic diagram after the coil of relay is powered；

Figure 10 is the magnetic circuit schematic diagram (magnetic hold mode) after the coil blackout of relay；

Each section label is as follows in attached drawing:

Yoke 1, horizontal yoke 11, the first riveted holes 111, vertical yoke 12, armature 2, mounting groove 21A, magnetic guiding frame 21B, Iron core 3, pole shoe 31, protrusion 31A, groove 31B, notch 311, reed 4, magnet steel 5, electromagnetic circuit C1 and permanent magnetic circuit C2.

Specific embodiment

The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear Define.

Embodiment: a kind of magnetic latching relay includes yoke 1, armature 2 and iron core 3, the armature and institute as shown in Figure 1: Yoke is stated by 4 elastic connection of reed, the iron core winding has coil (not shown go out), and the actuation end of the iron core has pole shoe 31, as shown in Figures 2 and 3: the upper surface of the pole shoe has protrusion 31A or groove 31B, passes through the protrusion or the groove The difference in height that constitutes with the upper surface of the pole shoe adjusts the magnetic circuit gap between the iron core and armature, to realize magnetic circuit In the attraction of armature and the balance of reset force (practical adjustments are set voltage and resetting voltage).

The side of the pole shoe has notch 311, adjusts the iron core by the notch and is attracted front and back to the armature Attraction；

The notch is located at the same side with the raised or described groove and the two is adjacent.

As shown in Figure 4: the yoke is L shape, and the L-shaped yoke includes horizontal yoke 11 and vertical yoke 12, described Iron core and the horizontal yoke rivet, and in the present embodiment, the horizontal yoke has the first riveted holes 111, under the iron core The first riveted holes riveting is inserted at end；

One end of the reed is fixedly connected with the vertical yoke, the other end of the reed and the fixed company of the armature It connects, in the present embodiment, the reed and the yoke and armature are all that riveting is fixed.

The armature is equipped with magnet steel 5, and the magnet steel is corresponding with the position of the iron core, the magnet steel and the iron core Position is corresponding, and the coil is powered, and iron core generates electromagnetic force and is attracted armature, and the magnetic circuit closure of the magnet steel, coil are disconnected at this time The magnetic circuit of magnet steel remains closed after electricity, to realize that the actuation of the armature is kept.

The actuation end of the iron core has pole shoe 31.

The mounting means of the magnet steel includes following manner:

(1) armature has mounting groove 21A, and the magnet steel is fixedly installed in the mounting groove；

The position of the mounting groove includes: positioned at the upper surface (side not contacted with iron core) of the armature and positioned at institute State the side of armature；

In the present embodiment, as shown in Figure 5 and Figure 6: the mounting groove is located at the side of the armature, after the magnet steel is packed into Its both ends (pole N and the pole S) all has metal (armature) package, and the metal of package has protection and magnetic conduction effect.

(2) as shown in Figure 7 and Figure 8: it further include magnetic guiding frame 21B, one end of the magnetic guiding frame is fixedly connected on the armature, And there is gap between the other end and the armature, the magnet steel is fixedly installed in the gap；

In the present embodiment, the magnetic guiding frame and the armature are riveted.

As shown in figure 9, the electromagnetic circuit C1 that the permanent magnetic circuit C2 ancillary coil of magnet steel generates when being powered, inhales armature It closes；After coil blackout, as shown in Figure 10: the electromagnetic circuit C1 disappears, and permanent magnetic circuit C2 is persistently closed, and armature is enable to be held It is continuous to be attracted.

The working principle of the utility model is as follows:

The iron core of the relay of the utility model has pole shoe, and the upper surface of the pole shoe has protrusion or groove, passes through Difference in height that the upper surface of the protrusion or the groove and the pole shoe is constituted adjusts the magnetic between the iron core and armature Road gap, to realize magnetic circuit in the attraction of armature and balance (really the adjusting set voltage and reset electricity of reset force Pressure)；

Also there is notch, by this notch (size) come the attraction of auxiliary adjustment relay on pole shoe；Because according to The area of magnetic circuit principle, iron core pole shoe is smaller, then it is bigger in attraction of the armature set position to armature, then it is made to reset institute The resetting voltage needed is also bigger, so as to balance resetting voltage numerically as far as possible with set voltage.

The armature of relay is equipped with magnet steel, and magnet steel is corresponding with the position of iron core, and the coil of relay is powered, and iron core generates Armature is attracted by electromagnetic force, and the magnetic circuit of magnet steel is also closed at this time, and electromagnetic force disappears after coil blackout, the magnetic circuit of magnet steel (permanent magnet) It is closed always, to realize that the actuation of the armature keeps (magnetic holding).

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other Technical field is also included in the patent protection scope of the utility model.

Claims

1. a kind of magnetic latching relay, including yoke (1), armature (2) and iron core (3), the armature and the yoke pass through spring Piece (4) elastic connection, the iron core winding have coil, it is characterised in that: the actuation end of the iron core has pole shoe (31), described The upper surface of pole shoe has raised (31A) or groove (31B), passes through the protrusion or the upper surface of the groove and the pole shoe The difference in height of composition adjusts the magnetic circuit gap between the iron core and armature, to realize magnetic circuit in the attraction of armature and multiple The balance of position power；

The armature is equipped with magnet steel (5), and the magnet steel is corresponding with the position of the iron core, and the coil is powered, and iron core generates Armature is attracted by electromagnetic force, at this time the magnetic circuit closure of the magnet steel, and the magnetic circuit of magnet steel remains closed after coil blackout, to realize The actuation of the armature is kept.

2. magnetic latching relay according to claim 1, it is characterised in that: the armature has mounting groove (21A), described Magnet steel is fixedly installed in the mounting groove.

3. magnetic latching relay according to claim 2, it is characterised in that: the mounting groove is located at the side of the armature Face.

4. magnetic latching relay according to claim 2, it is characterised in that: the mounting groove is located at the upper table of the armature Face.

5. magnetic latching relay according to claim 1, it is characterised in that: including magnetic guiding frame (21B), the magnetic guiding frame One end is fixedly connected on the armature, and has gap between the other end and the armature, and the magnet steel is fixedly installed in described In gap.

6. magnetic latching relay according to claim 1, it is characterised in that: the side of the pole shoe has notch (311), The iron core is adjusted to the attraction of the armature by the notch.

7. magnetic latching relay according to claim 6, it is characterised in that: the notch and the protrusion or the groove Positioned at the same side and the two it is adjacent.

8. magnetic latching relay according to claim 1, it is characterised in that: the yoke is L shape, the L-shaped yoke Including horizontal yoke (11) and vertical yoke (12), the iron core and the horizontal yoke are riveted, one end of the reed and institute It states vertical yoke to be fixedly connected, the other end of the reed is fixedly connected with the armature.