CN209071228U - A kind of magnetic latching relay - Google Patents

Abstract

The utility model relates to a kind of magnetic latching relays, including pedestal, housing, magnetic steel component, two L-type yokes, two clamping plates, push plate, movable spring assembly, stationary plate component, coil block on the base is set, the magnetic steel component and push plate link, the push plate and the movable spring assembly link, the coil block includes coil rack, the coil rack has the wrapping post and substrate for coiling copper wire, slot is offered on the substrate, the L-type yoke has lateral plate and adsorption plate, the transverse direction plate is adapted to the axial sides for connecting and being fixedly installed in coil rack with the slot；The front and rear sides of the adsorption plate have protrusion, on the clamping plate, position corresponding with the protrusion on the adsorption plate of the coil rack axial sides form limit hole, the limit hole at least forms limit with the protrusion in a lateral direction；Product qualified rate of the magnetic latching relay of the utility model in assembly is high, and the dynamics of contact movement is reliable and stable, long service life.

Description

A kind of magnetic latching relay

Technical field

The utility model relates to a kind of relay in low-voltage electrical field more particularly to a kind of magnetic latching relays.

Background technique

Magnetic latching relay has been developed in recent years a kind of new type of relay, due to the contact shape of magnetic latching relay State is kept by the magnetic force of permanent-magnet steel, therefore, when control contact is converted, only need to input the forward direction of one fixed width at coil both ends Or reversed DC pulse can realize the connection and cutting of magnetic latching relay.

In the prior art, magnetic latching relay mainly includes coil block, magnetic steel component, push plate, movable spring assembly and stationary plate Component, coil block include being wound with the coil of copper wire and the iron core being plugged in coil and being securedly mounted to coil both ends Yoke, yoke have mounting surface and adsorption plane, and mounting surface is for being riveted on coil both ends, and adsorption plane is to as magnetic steel component Absorption rotation, i.e., promote to have the magnetic steel component of permanent armature plate to rotate by the DC pulse being applied on coil block, and Drive push plate mobile by magnetic steel component so that push plate push movable spring assembly to act and make movable contact on movable spring assembly with it is quiet Stationary contact closure on piece component, it is on the contrary then disconnect.

However, since the yoke on coil block in the prior art is all the iron by the way of riveting and in coil rack Core is fastened on one, and the mode that this installation combines haves the defects that very big: 1, the processing of yoke inevitably produces Raw size and Form and position error, and due to none unified positioning datum of the installation of two yokes, each by riveting peace Dress is easy to cause the flatness of the adsorption plate of two yokes of coil two sides beyond design tolerance (i.e. overproof), and the two The suction-combining force that the flatness (i.e. in approximately the same plane) of adsorption plane directly affects magnetic steel component, i.e., when flatness is overproof, Just long-term the suction-combining force easy to form is insufficient, so that the push plate of relay pushes the dynamics of movable spring assembly not big enough, and leads Cause the contact contact on movable spring assembly and stationary plate component unreliable, in some instances it may even be possible to cause contact poor contact and burn it is hidden Suffer from, the service life of extreme influence relay；2, it is easy to cause defective products to increase with the mode that yoke is fixedly mounted in riveting, and by In disassembly, difficult and disassembly does over again and easily causes parts damages, when there is such case, can only generally do and scrap processing, phase That answers causes biggish waste, and is that product cost rises.

Summary of the invention

The purpose of the utility model is to overcome the defect of the prior art, provide that a kind of structure is simple, reliable working performance Stablize and can effectively improve the magnetic latching relay of service life.

To achieve the above object, the utility model uses a kind of magnetic latching relay, including pedestal, housing, H-type magnet steel group Part, two L-type yokes, two clamping plates, push plate, movable spring assembly, stationary plate component, the coil block of setting on the base, the cover Shell and the pedestal, which are formed, to be clamped, the movable contact that the movable spring assembly has movable contact spring and is arranged on movable contact spring, the stationary plate Component has static contact and the stationary contact that is arranged on static contact, and the movable contact and the stationary contact correspond to each other setting, institute Stating H-type magnetic steel component includes the armature plates that support frame and two are interspersed on support frame as described above each other in parastate, described Two side positions of the armature plate on the interspersed direction of support frame as described above form fluting, and the H-type magnetic steel component and the push plate join Dynamic, the push plate and the movable spring assembly link, and the coil block includes the coil rack for coiling copper wire, the coil Skeleton has wrapping post and sets up the axial sides in the wrapping post separately and be in the substrate being wholely set with the wrapping post, described Slot, the absorption that the L-type yoke has lateral plate and extends in vertical state with the transverse direction plate are offered on substrate Plate, the L-type yoke are fixedly installed in coil rack with the connection that is adapted to of slot on the substrate by its lateral plate Axial sides, and form corresponding relationship of described two adsorption plates on overbending direction；Vertical there are two being opened up on the clamping plate The limit hole (alignment refers to that the longitudinal centre line of two limit holes is same straight line) being in alignment with each other is upwardly formed to side, it is described The front and rear sides of adsorption plate, position corresponding with the limit hole have protrusion, and the protrusion is at least in transverse direction Upper formed with the limit hole limits；The adsorption plate is at least part of to be extended into the fluting；As the utility model It is further improved, also carries out second-order correction and guarantee for the assembly flatness effectively to the lateral plate, on the clamping plate, Position corresponding with the transverse direction front and rear sides edge of plate forms positioning clip slot.

The specific assembling structure of the coil rack and L-type yoke is as follows: the slot is the top end face by the substrate The sinkage type structure opened up towards axial direction, and the edge placement of the slot forms side wall, on the bottom surface of the slot, leans on The position of nearly adsorption plate has a positioning column, and on the transverse direction plate, position corresponding with the positioning column offers in positioning Heart hole, the positioning column are adapted to the positioning center hole；At least there is two limit convex edges radially extended, institute in the side wall It states the distance between bottom surface of limit convex edge and the slot to be adapted to the thickness of the lateral plate, such assembling structure can Effectively by the limit of lateral plate in slot, it is only necessary to which the machining accuracy (such as flatness) for controlling slot can guarantee cross It is plugged in slot to plate is smooth, even if lateral plate has micro mismachining tolerance, the flatness of slot can also be passed through Micro amendment is carried out, to it to be further ensured that the stable state installation of L-type yoke.

As the position limiting structure to clamping plate, the pedestal have bottom plate and by bottom plate front and rear sides edge by centre Position, the perpendicular backup plate extended in the bottom plate, the right edge of the backup plate form the extended perpendicular to the backup plate One positive stop strip, the left side edge of the backup plate form the second positive stop strip extended perpendicular to the backup plate, on the backup plate, first Region between positive stop strip and the second positive stop strip forms the spacing zone being adapted to the clamping plate；On the substrate of the coil rack, Position corresponding with first positive stop strip forms limiting slot.

In the present invention, the front and rear sides of support frame as described above are provided with positioning convex point, on the clamping plate, with it is described fixed The position corresponding position of salient point forms location hole, and the H-type magnetic steel component is determined by the positioning convex point and the location hole Position cooperates and is formed hinged with clamping plate.

As the further setting of the utility model, the front and rear sides of the push plate form draw runner, on the clamping plate and institute It states the corresponding position of draw runner and forms sliding slot；Jack is offered in the push plate, is had on the support frame of the H-type magnetic steel component The wobble plate in the jack is extended at least partially into, the push plate forms sliding with the rotation of H-type magnetic steel component by wobble plate.

Clip slot is offered in the push plate, the top edge of the movable contact spring is at least part of to protrude into the clip slot.

In the utility model, the specific action process of the magnetic latching relay is as follows: applying in coil block two sides certain Positive or reversed DC pulse when, the H-type magnetic steel component just makes a corresponding left side because of the change action of magnetic force direction It turns right dynamic, so that wobble plate is swung therewith on support frame, push plate is promoted to slide towards left and right sides direction, push plate further pushes away The movable spring assembly movement is moved, is allowed to realize the closure of movable contact and stationary contact or the behavior of disconnection.

Improved by above-mentioned technical proposal to the prior art, the utility model obviously reached of both The utility model has the advantages that the relatively reliable stabilization of 1, assembly precision: in the structural principle of the utility model, eliminating and use tightening of rivet The structure for installing L-type yoke, directlys adopt the assembled immovable fitting of lateral plate and slot, it is only necessary to make the processing essence of slot Degree ensures that (since in the prior art, coil rack is all plastics structure, i.e. its substrate is also plastics system, is being produced and processed When, precision die can be directly used completely and go out mold forming, and because be with a batch of mold depanning, precision It is reliable and stable that also there is very strong consistency, be easier to grasp assembly precision), it can make whole assembly precision and dress With the upper level of reliability, thus thoroughly avoid in riveting process caused by rigging error；Also, since this is practical In novel technical solution, by the way that locating clip compatible with the transverse direction front and rear sides edge of plate is arranged on clamping plate Slot, though so that assembling structure out-of-flatness of the lateral plate in slot, also can because positioning clip slot secondary positioning with it is micro Correcting action, and reach the transverse direction plate meet its assembly flatness requirement；2, the more powerful stabilization of adsorption capacity: Wo Menzhi Road, between two corresponding adsorption plates of coil block two sides, be in alignment with each other it is more accurate, then to coil block because of DC pulse The deviation influence of the magnetic direction of generation is smaller, i.e. the loss of magnetism intensity is smaller, and then can effectively ensure that magnetism intensity does not subtract, And in the utility model, by clamping plate as datum plate, since two limit holes on each clamping plate are in that in a longitudinal direction This aligned fashion is effectively guaranteed two when so that the protrusion on adsorption plate forming cross spacing in the limit hole Alignment between adsorption plate, because the limit hole of clamping plate acts as the role of positioning datum during assembly；3, due to taking Disappear the process of riveting installation, so that the relay assembly process of the utility model is effectively simplified, and cooperates and above-mentioned has The magnetism intensity effect of effect, be further formed movable contact closure or disconnect when Reliability of Microprocessor, a molding assembly at Product qualification rate is high.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram of magnetic latching relay in the utility model.

Fig. 2 is the stereoscopic schematic diagram removed after housing in Fig. 1.

Fig. 3 is the schematic perspective view removed after pedestal in Fig. 2.

Fig. 4 is the schematic diagram after disassembling front and rear sides clamping plate in Fig. 3

Fig. 5 is the assembling schematic diagram of yoke in the utility model, clamping plate and coil block.

Fig. 6 is the decomposition diagram of Fig. 5.

Fig. 7 is the stereoscopic schematic diagram of the utility model middle clamp plate.

Fig. 8 is the stereoscopic schematic diagram of L-type yoke in the utility model.

Fig. 9 is the stereoscopic schematic diagram of H-type magnetic steel component in the utility model.

Figure 10 is the stereoscopic schematic diagram of pedestal in the utility model.

Figure 11 is the stereoscopic schematic diagram of push plate in the utility model.

Figure 12 is another angle stereoscopic schematic diagram of Figure 11.

Specific embodiment

As shown in figs. 1-12, the present embodiment uses a kind of magnetic latching relay, and the magnetic of Fig. 1-Figure 12 display, the present embodiment is protected Holding relay includes pedestal 1, housing 2, H-type magnetic steel component 3, two L-type yoke 71, two clamping plate 72, push plate 4, movable spring assembly 5, stationary plate component 6, the coil block 7 being arranged on pedestal 1, Fig. 1 combination Fig. 2 is shown it is found that the housing 2 and the pedestal 1 It is formed and is engaged by clamping, shown in Fig. 2 and Fig. 3, the dynamic touching that the movable spring assembly 5 has movable contact spring 50 and is arranged on movable contact spring 50 It selects 51 and is fixedly connected on the lug plate 52 of the movable contact spring lower end, there is the stationary plate component 6 static contact 60 and setting to exist Stationary contact 61 on static contact 60, Fig. 1, Fig. 2 are shown, described in the static contact 60 and at least part of protrusion of the lug plate 52 Pedestal 1, evident from, the movable spring assembly 5 and the stationary plate component 6 is longitudinal respectively is plugged on the pedestal 1 in Fig. 2, and And then form the movable contact 51 and the stationary contact 61 and correspond to each other setting, it is shown in Fig. 9, the H-type magnetic steel component 3 includes Support frame 30 and two are interspersed in the armature plate 31 on support frame as described above 30 in parastate each other, and the armature plate 31 is in institute Two side positions stated on the interspersed direction of support frame 30 form fluting 301, in the present embodiment, the H-type magnetic steel component 3 and institute The linkage of push plate 4 is stated, the push plate 4 links with the movable spring assembly 6, further combined with Fig. 4 and Fig. 5 it is found that the coil block 7 Including the coil rack 70 for coiling copper wire, the coil rack 70 has wrapping post 700 and sets up separately in the wrapping post 700 Axial sides and be in the substrate 701 that is wholely set with the wrapping post 700, offer slot 7010, Fig. 8 on the substrate 701 In further display, the L-type yoke 71 has a lateral plate 710 and extends in vertical state with the transverse direction plate 710 Adsorption plate 711 (the i.e. described adsorption plate 711 is bent into substantially in vertical state on the basis of lateral plate 710), the L-type yoke Iron 71 is connect with the adaptation of slot 7010 on the substrate 701 by its lateral plate 710 and is fixedly installed in coil rack 70 Axial sides, and form corresponding relationship of described two adsorption plates 711 on overbending direction；Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are into one Step display, opens up that (alignment refers to figure there are two the limit hole 720 that is in alignment with each other is formed in a longitudinal direction on the clamping plate 72 The longitudinal centre line 7200 of two limit holes 720 of 7 displays is same straight line), the front and rear sides of the adsorption plate 711 and institute The corresponding position of limit hole 720 is stated with protrusion 7110, the protrusion 7110 at least in a lateral direction with the limit Position hole 720 forms limit；Evident from the adsorption plate 711 is at least part of in a longitudinal direction to extend into described open in Fig. 4 In slot 301；Further combined with Fig. 3, Fig. 7 it is found that being effectively to the assembly flatness of the lateral plate in the present embodiment It carries out second-order correction and guarantees that it meets matching requirements, the front and rear sides edge on the clamping plate 72, with the lateral plate 710 Corresponding position forms positioning clip slot 723, and as can be known from Fig. 3, the position location of the positioning clip slot 723 is mainly reflected in close In the positioning accuracy that on the position of adsorption plate 711, can effectively improve positioning clip slot 723 in this way, also, pass through positioning clip slot 723 secondary positioning, even if so that assembling structure out-of-flatness of the lateral plate 710 in slot 7010 in the present embodiment (is compared The excessive factor of mismachining tolerance or its fit-up gap of such as lateral plate 710 and slot 7010), it also can be because of positioning clip slot 723 secondary positioning and micro correcting action, and reach the flatness requirement that the transverse direction plate 710 meets its assembly.

In the present embodiment, the specific assembling structure of the coil rack and L-type yoke is as follows: described to insert shown in Fig. 6 Slot 7010 is the sinkage type structure that opens up towards axial direction of top end face by the substrate 701, and the side of the slot 7010 Side wall 7011 is formed along position, is shown in conjunction with Fig. 5 it is found that the position on the bottom surface of the slot 7010, close to adsorption plate 711 has Have positioning column 7012, further combined with Fig. 8 it is found that it is described transverse direction plate 710 on, position corresponding with the positioning column 7012 Positioning center hole 7100 is offered, which is adapted to the positioning center hole 7100；In the side wall 7011 at least There are two the limit convexes that radially extend for tool along 70110, the limit convex between 70110 and the bottom surface of the slot 7010 away from It is adapted to from the thickness of the lateral plate 710, such assembling structure can effectively limit lateral plate in slot 7010 It is interior, it is only necessary to the machining accuracy (such as flatness) for controlling slot 7010, can guarantee lateral plate 710 it is smooth be plugged in it is slotting In slot 7010, even if lateral plate 710 has micro mismachining tolerance, the flatness and limit convex of slot 7010 can also be passed through Along 70110 pairs its carry out micro amendment, to guarantee that lateral plate 710 can be smooth is plugged in the slot 7010, Further ensure the stable state installation of L-type yoke 71.

In the present embodiment, as the position limiting structure to clamping plate 72, and in conjunction with Figure 10 it is found that the pedestal 1 has bottom plate 10 and by bottom plate 10 front and rear sides edge by middle position, it is perpendicular in the bottom plate extend backup plate 11, it is described to lean on The right edge of plate 11 forms the first positive stop strip 110 extended perpendicular to the backup plate, and the left side edge of the backup plate 11 is formed Perpendicular to the second positive stop strip 111 that the backup plate extends, on the backup plate 11, the first positive stop strip 110 and the second positive stop strip 111 it Between region form the spacing zone 112 that is adapted to the clamping plate 72；On the substrate 701 of the coil rack 70, with described first The corresponding position of positive stop strip 110 forms limiting slot 7013.

In the present embodiment, the H-type magnetic steel component 3 and the clamping plate 72 of its front and rear sides are formed hingedly, are schemed by combining 3, Fig. 4 and Fig. 7, Fig. 9 are shown it is found that its specific articulated structure is described as follows: the front and rear sides setting of support frame as described above 30 Have a positioning convex point 300, on the clamping plate 72, position corresponding with the positioning convex point 300 form location hole 721, the H-type Magnetic steel component 3 is formed hinged with clamping plate 72 by the location fit of the positioning convex point 300 and the location hole 721.

It is shown in Figure 11, Figure 12, the front and rear sides of the push plate 4 form draw runner 40, and showing in conjunction with Fig. 3, Fig. 4 and Fig. 7 can Know, on the clamping plate 72, position corresponding with the draw runner 40 formed sliding slot 722；It is further displayed in Figure 11, the push plate Jack 41 is offered on 4, is shown in Fig. 9, is had described in extending at least partially on the support frame 30 of the H-type magnetic steel component 3 Wobble plate 32 in jack 41, the push plate 4 are formed in the clamping plate 72 with the rotation of H-type magnetic steel component 3 by wobble plate 32 Sliding in sliding slot 722.

It is also shown in Figure 11 and Figure 12, clip slot 42 is offered in the push plate 4, in the present embodiment, further combined with Fig. 3 With Fig. 4 it is found that the top edge of the movable contact spring 50 is at least part of to protrude into the clip slot 42, and 4 pairs of institutes of push plate are realized in turn State the impetus of movable spring assembly 5.

In the present embodiment, the specific action process of the magnetic latching relay is as follows: applying in 7 two sides of coil block certain Positive or reversed DC pulse when, the H-type magnetic steel component 3 just makes a corresponding left side because of the change action of magnetic force direction To or dextrad rotation promote push plate 4 sliding towards left and right sides direction so that the wobble plate 32 on support frame 30 is swung therewith It moves, push plate 4 further pushes the movable spring assembly 5 to act, and is allowed to realize the closure of movable contact 51 and stationary contact 61 or disconnected The behavior opened.

In the present embodiment, for compared with the prior art, L-type yoke 71 is installed with tightening of rivet due to eliminating, directly Using the assembled immovable fitting of lateral plate 710 and slot 7010, it is only necessary to make the machining accuracy of slot 7010 ensure (by In in the prior art, coil rack 70 is all plastics structure, i.e., its substrate 701 is also plastics system, in production and processing, completely Precision die can be directly used and go out mold forming, and because be with a batch of mold depanning, precision it is reliable steady It is fixed that also there is very strong consistency, be easier to grasp assembly precision), it can make whole assembly precision and assembly reliable Property a upper level, thus rigging error caused by thoroughly avoiding in riveting process, also, due to the skill of the present embodiment In art scheme, by the way that positioning clip slot compatible with the transverse direction front and rear sides edge of plate 710 is arranged on clamping plate 72 723, even if so that assembling structure out-of-flatness of the lateral plate 710 in slot 7010, it also can be secondary because of positioning clip slot 723 Positioning and micro correcting action, and reach the flatness requirement that the transverse direction plate 710 meets its assembly；In addition, the present embodiment The more powerful stabilization of adsorption capacity between armature plate 31 and adsorption plate 711 on the H-type magnetic steel component 3 of magnetic latching relay: I Know, between the corresponding adsorption plate 711 of two of 7 two sides of coil block, be in alignment with each other it is more accurate, then to coil block 7 Because the deviation influence of the magnetic direction of DC pulse generation is smaller, i.e. the loss of magnetism intensity is smaller, and then can effectively ensure that magnetic Power intensity does not subtract, and in the present embodiment, datum plate is used as by clamping plate 72, in a longitudinal direction due to limit hole 720 thereon In aligned fashion (longitudinal centre line 7200 of two limit holes 720 on the i.e. same clamping plate 72 forms collinear relationship), so that When protrusion 7110 on adsorption plate 711 forms cross spacing in the limit hole 720, two adsorption plates are effectively guaranteed Alignment between 711, because the limit hole 720 of clamping plate 72 acts as the role of positioning datum during assembly；Finally, by In the process for cancelling riveting installation, so that the assembly process of the present embodiment magnetic latching relay is effectively simplified, and match Close and state effective magnetism intensity effect, be further formed movable contact closure or disconnect when Reliability of Microprocessor, avoid because Adsorption capacity between armature plate 31 and adsorption plate 711 is insufficient and causes push plate 4 that can not make the phenomenon that pushing movable spring assembly 5 to act production It is raw, achieve the effect that the product qualified rate of a molding assembly is high.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.This The technical staff of industry is retouched in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments That states only illustrates the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model It will also have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.This is practical new The protection scope that type requires is according to the attached claims and its equivalent thereof.

Claims (7)

1. a kind of magnetic latching relay, including it is pedestal, housing, H-type magnetic steel component, two L-type yokes, push plate, movable spring assembly, quiet Piece component, the coil block of setting on the base, the movable contact that the movable spring assembly has movable contact spring and is arranged on movable contact spring, The stationary contact that the stationary plate component has static contact and is arranged on static contact, the movable contact correspond to each other with the stationary contact Setting, the H-type magnetic steel component include support frame and two armature being interspersed in each other in parastate on support frame as described above Piece, two side positions of the armature plate on the interspersed direction of support frame as described above form fluting, the H-type magnetic steel component with it is described Push plate linkage, the push plate and the movable spring assembly link, it is characterised in that: further include two clamping plates, the coil block packet Include the coil rack for coiling copper wire, the coil rack has wrapping post and sets up the axial sides, simultaneously in the wrapping post separately Be in the substrate that is wholely set with the wrapping post, offer slot on the substrate, the L-type yoke have lateral plate and The adsorption plate extended in vertical state with the transverse direction plate, the L-type yoke pass through slot on its lateral plate and the substrate Adaptation connection and be fixedly installed in the axial sides of coil rack；It is formed in a longitudinal direction there are two being opened up on the clamping plate The limit hole being in alignment with each other, the front and rear sides of the adsorption plate, position corresponding with the limit hole have protrusion, described Protrusion is at least formed in a lateral direction with the limit hole and is limited；The adsorption plate is at least part of to extend into the fluting It is interior.

2. a kind of magnetic latching relay according to claim 1, it is characterised in that: the slot is the top by the substrate The sinkage type structure that end face is opened up towards axial direction, and the edge placement of the slot forms side wall, the bottom surface of the slot It is upper, there is positioning column close to the position of adsorption plate, on the transverse direction plate, position corresponding with the positioning column offer and The positioning center hole of the positioning column adaptation；At least there is two limit convex edges radially extended, the limit in the side wall The distance between convex edge and the bottom surface of the slot are adapted to the thickness of the lateral plate.

3. a kind of magnetic latching relay according to claim 1 or 2, it is characterised in that: on the clamping plate, with the transverse direction The corresponding position in the front and rear sides edge of plate forms positioning clip slot.

4. a kind of magnetic latching relay according to claim 3, it is characterised in that: the pedestal has bottom plate and the bottom of by The front and rear sides edge of plate leans on middle position, the perpendicular backup plate extended in the bottom plate, the right edge shape of the backup plate At the first positive stop strip extended perpendicular to the backup plate, the left side edge of the backup plate forms the extended perpendicular to the backup plate Two positive stop strips, the region on the backup plate, between the first positive stop strip and the second positive stop strip form the limit being adapted to the clamping plate Area；On the substrate of the coil rack, position corresponding with first positive stop strip formed limiting slot.

5. a kind of magnetic latching relay according to claim 4, it is characterised in that: the front and rear sides of support frame as described above are arranged Have a positioning convex point, on the clamping plate, position corresponding with the positioning convex point form location hole, the H-type magnetic steel component is logical It crosses the location fit of the positioning convex point and the location hole and is formed hinged with clamping plate.

6. a kind of magnetic latching relay according to claim 5, it is characterised in that: the front and rear sides of the push plate form cunning Item, on the clamping plate, position corresponding with the draw runner form sliding slot；Jack, the H-type magnet steel are offered in the push plate There is the wobble plate extended at least partially into the jack, the push plate is by wobble plate with magnetic steel component on the support frame of component It rotates and forms sliding.

7. a kind of magnetic latching relay according to claim 6, it is characterised in that: offer clip slot, institute in the push plate The top edge for stating movable contact spring at least part of protrudes into the clip slot.