CN110491732A

CN110491732A - A kind of flip-over type miniature relay

Info

Publication number: CN110491732A
Application number: CN201910745368.3A
Authority: CN
Inventors: 吕江; 徐勇
Original assignee: SICHUAN HONGFA ELECTROACOUSTIC CO Ltd
Current assignee: SICHUAN HONGFA ELECTROACOUSTIC CO Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2019-11-22

Abstract

The invention discloses a kind of flip-over type miniature relays, including bobbin, iron core, yoke, movable spring assembly and quiet spring component, coil is equipped on the bobbin, the movable spring assembly and quiet spring component are respectively assembled at the bottom of the bobbin, and make spring contact and quiet spring contact corresponding matching, the iron core is axially mounted in the bobbin in such a way that both ends can extend the bobbin corresponding end, the bottom end of the iron core and the movable contact spring of movable spring assembly connect, the bottom of the yoke is assemblied in the bobbin bottom, top extends to the over top of the bobbin, and the top end of the iron core is at the top of the yoke, to constitute the activity space of the iron core in the axial direction.The present invention has the characteristics that structure is simple, manufacturing cost is low, performance is stable, long service life.

Description

A kind of flip-over type miniature relay

Technical field

The present invention relates to relay, specifically a kind of flip-over type, " sugar cube " type miniature relay.

Background technique

" sugar cube " type relay has the characteristics that structure is simple, compact-sized, small in size, power is low, in household appliance Power supply control aspect has obtained generality application.

Typically " sugar cube " type relay as shown in Figure 1, its mainly by bobbin a and the line being assemblied on bobbin a Circle b, be assemblied in bobbin a iron core, be assemblied on bobbin a yoke d, be assemblied on bobbin a quiet spring component c, The movable spring assembly e being assemblied on bobbin a, the armature f being assemblied on yoke d by movable spring assembly e etc. are formed.In the relay In device structure, movable spring assembly (being primarily referred to as movable contact spring) extends to the top of bobbin by yoke and armature, is playing Cooperate the basic function of quiet spring component, while also acting as the function of assembly connection armature and yoke；Quiet spring component is from bobbin Bottom passes through coil window and extends to the top of bobbin, to cooperate with movable spring assembly.

Above-mentioned typical " sugar cube " type relay is primarily present following technical problem, and make its economy, stability and Reliability is poor:

1. movable spring assembly and quiet spring component span half of magnetic circuit respectively and make path partially long, when on the one hand will lead to manufacture Materials increase, to increase manufacturing cost, on the other hand can make conductive distance and internal resistance is big, it is more difficult to meet the skill of heavy load Art requirement；

2. quiet spring component extends to the top of bobbin, climbing between coil from bobbin bottom across coil window Electrical distance is relatively low, this will be easy to happen electric shock phenomenon in use, and security performance is lower；

3. armature be assemblied on the edge of a knife of yoke by the elastic pressure of movable spring assembly, once the dynamic spring of movable spring assembly There is fatigue, elastic force and is slightly damaged in piece, and the elastic pressure assembled between armature and yoke will be made insufficient, armature is matched on yoke Holding cannot be stablized by closing structure, and armature is easy displacement, and then will cause the operation irregularity or premature failure of relay.

Technical problem present in above-mentioned typical " sugar cube " type relay, is always the direction actively studied in the industry, with It is solved.However, how research emphasis in the industry primarily focuses on by the movable spring assembly and quiet spring component on bobbin at present Path shorten, such as the miniature relay of high load " a kind of low cost " (publication number CN disclosed in Chinese patent literature 206388653, publication date August in 2017 8 days), which passes through the iron core in bobbin is carried out upside-down mounting, makes iron core pole-face Towards bobbin bottom, to assembling armature, movable spring assembly and quiet spring component etc. in the bottom of bobbin, so that movable spring assembly Contact and the contact of quiet spring component form cooperation in the bottom of bobbin, and then shorten the road of movable spring assembly and quiet spring component Diameter, to reduce materials, manufacturing cost is reduced with this, and shorten conductive distance to reduce internal resistance, to meet the technology of heavy load It is required that.Although the technology reduces manufacturing cost with specific inverted structure, meets heavy load technical requirements, Armature is still to be assemblied on the yoke edge of a knife by the elastic pressure of movable spring assembly, this allows for above-mentioned typical " sugar cube " Once the 3rd technical problem present in type relay still remain-i.e. and there is fatigue, elastic force slightly in the movable contact spring of movable spring assembly It is impaired, the elastic pressure assembled between armature and yoke will be made insufficient, armature fit structure on yoke cannot stablize holding, Armature is easy displacement, and then will cause the operation irregularity or premature failure of relay, and service life is short.

Summary of the invention

Technical purpose of the invention is: particularity and the above-mentioned prior art for above-mentioned " sugar cube " type relay are not Foot, provides that a kind of structure is simple, manufacturing cost is low, performance is stable, flip-over type miniature relay with long service life.

Technical purpose of the invention is achieved through the following technical solutions: a kind of flip-over type miniature relay, including line Coil, iron core, yoke, movable spring assembly and quiet spring component are equipped with coil, the movable spring assembly and quiet spring group on the bobbin Part is respectively assembled at the bottom of the bobbin and makes spring contact and quiet spring contact corresponding matching, and the iron core is with both ends energy The mode for enough extending the bobbin corresponding end is axially mounted in the bobbin, the bottom end of the iron core and movable spring group The movable contact spring of part connects, and the bottom of the yoke is assemblied in the bobbin bottom, top extends to the top of the bobbin Top, and the top end of the iron core is at the top of the yoke, to constitute the activity space of the iron core in the axial direction.

One of preferably, the inside top surface of the yoke is planar structure；It is corresponding, the iron core Top be also planar structure.

One of preferably, the yoke is c-type structure.

One of preferably, the iron core assembly bore dia that there is outer diameter to be greater than on bobbin on the top of the iron core Head, the entire T-shaped structure of iron core, the head on the iron core are in the top end of bobbin, the head top surface of the iron core For planar structure.

One of preferably, the bottom of the bobbin offers the inserting groove for assembling the yoke, the inserting Slot passes to from iron core assembly hole from the lateral position of bobbin bottom and is straight groove structure, and the bottom of the yoke is identical described The vertical bar structure of inserting groove, the bottom of the yoke are assemblied in the bottom of the bobbin by the inserting groove.Further, The bottom front of the yoke has the inserting mouth of corresponding outer diameter profile.Further, the bottom front of the yoke Inserting mouth be U-shaped structure or circular configuration.Further, the inserting mouth of the bottom front of the yoke is U-shaped structure.

One of preferably, the iron core assembly hole periphery at the top of the bobbin has three reinforcements to raise upward Muscle, this three reinforcing ribs surround the space that profile is greater than iron core radial contour at the top of bobbin, and this three reinforcing ribs exist The top inserting type groove of the yoke is formed on the top in the space surrounded at the top of bobbin, and the top of the yoke passes through described Inserting type groove that three reinforcing ribs at the top of bobbin are surrounded and the top for being assemblied in the bobbin.

One of preferably, fixation is successively offered in a manner of being intervally arranged on the movable contact spring of the movable spring assembly Hole, iron core assembly hole and contact holes, the movable contact spring are assemblied in the bottom of the bobbin by fixation hole, and the movable contact spring is logical The bottom end assembly connection of iron core assembly hole and iron core is crossed, the contact holes, which are used as, assembles dynamic spring contact, the fixation hole location The movable contact spring in domain is engaged with the bottom surface forming face of the bobbin, the iron core assembly hole and contact holes region The movable contact spring and the bobbin bottom surface keep free gap cooperation.Further, the fixation hole of the movable contact spring with Region between iron core assembly hole has turnover step, is divided into movable contact spring and bobbin bottom surface face by the turnover step Be engaged region and holding free gap mating area.Further, the turnover step on the movable contact spring is inclined-plane knot Structure, the angle between the turnover step and the movable contact spring elongated surfaces of the fixation hole region is 30~60 °, preferably 40~ 50°。

One of preferably, the flexible deformation of c-type structure is offered on the movable contact spring of iron core assembly hole periphery Hole, the elastic-deformation holes are on the movable contact spring between the iron core assembly hole and contact holes.Further, the movable contact spring On iron core assembly hole of the elastic-deformation holes on the movable contact spring, and the profile molded line of the elastic-deformation holes corresponds to institute State the profile molded line in iron core assembly hole.

The method have the benefit that:

1. the present invention is directed to the particularity of " sugar cube " type relay, with the bobbin of bottom upside-down mounting movable spring assembly and quiet spring component Based on, by iron core assembled in bobbin in axially movable mode and with movable spring assembly assembly connection, yoke is in coil The top of frame constitutes iron core activity space in the axial direction and forms working gas gap, axis of the iron core in activity space with iron core The movable spring assembly of bobbin bottom is able to drive to displacement and quiet spring component realizes and cooperate that the present invention had both had flip-over type relay The technical advantage-being had has shortened the path of movable spring assembly and quiet spring component, to reduce materials, with this reduce manufacture at This, and thermal resistance is reduced, allow heat to be easier to shed, to meet the technical requirements of heavy load；Matching because of yoke and iron core again It closes structure and eliminates armature, the removal of armature is effectively simplified the design structure of relay, manufacturing cost is reduced, meanwhile, Axial movable iron core by bobbin iron core hole and yoke be limited in the working position range of design, prevented existing skill Technical problem brought by the stability difference of assembling structure, improves the anti-of relay significantly between yoke and armature in art Drop performance, so that present invention performance in use is stable, long service life, it is economical, reliable, and make coil window all The space enclosed is emptied, compared with existing " sugar cube " type relay, the creepage distance under equal volume can design it is higher, The security performance of protection against electric shock in use is higher；

Smoothly cooperate 2. the structure at the top of yoke of the present invention can be formed with the top of iron core, it is ensured that iron core axial displacement Stability and reliability, concentrated wear, card resistance caused by preventing iron core in axial displacement process due to generating radial deflection etc. Technical problem, this especially iron core use T-type structure and head top surface for the cooperation of planar structure under become apparent, yoke Performance stabilization, the high reliablity, long service life for making the present invention in use with the smooth co-operation of iron core；

3. the inserting slot structure and yoke bottom structure of bobbin bottom of the present invention, can effectively ensure yoke on bobbin Stable, efficient installation forming, molding is firm, and particularly suitable automated production process, this is especially adopted in yoke bottom front It is become apparent in the cooperation of the inserting mouth of U-shaped structure, in addition, the U-shaped structure inserting mouth of yoke bottom front both ensures yoke Stable assembly is formed with iron core in bobbin, and can ensure that iron core effectively reduces non-while reliably axial displacement Working gas gap, service performance are stablized, high reliablity；

4. reinforcing rib structure at the top of bobbin of the present invention and with the fit structure at the top of yoke, both effectively enhance bobbin Structural strength, and can ensure that yoke stablizes assembly on bobbin, this ensures performance in use from another angle again Stablize, high reliablity；

5. the turnover step structure of movable contact spring of the present invention had not only ensured the stability that movable contact spring is assembled in bobbin bottom, but also tool There is good elasticity, this especially becomes apparent under the elastic-deformation holes cooperation of c-type structure, the presence of elastic-deformation holes and row Cloth position effectively increases the strain length of movable contact spring, to obtain better counter-force curve.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of traditional typical " sugar cube " type relay, in the figure it can be seen that movable spring assembly and Quiet spring component partially long across path and movable spring assembly is to the assembling structure between yoke and armature.

Fig. 2 is a kind of status architecture schematic diagram of the invention, can be seen that movable spring assembly and quiet spring component in coil in figure Inverted structure on frame, assembling structure of the iron core on bobbin and the assembling structure with movable spring assembly, yoke is in bobbin On assembling structure and yoke and iron core fit structure, iron core be in original state, movable spring assembly dynamic spring contact and place It is attracted in the quiet spring contact of the next normally closed quiet spring component.

Fig. 3 is another status architecture schematic diagram of the invention, can be seen that movable spring assembly and quiet spring component are online in figure Inverted structure in coil, assembling structure of the iron core on bobbin and the assembling structure with movable spring assembly, yoke is in coil The fit structure of assembling structure and yoke and iron core on frame, iron core be in uplink state, movable spring assembly dynamic spring contact with Quiet spring contact in upper normally opened quiet spring component is attracted.

Fig. 4 is a kind of structural schematic diagram of assembled state of the yoke of the present invention on bobbin, can be seen that coil in figure The specific structure of yoke assembling structure and yoke on frame.

Fig. 5 is the structural schematic diagram of movable contact spring in Fig. 2 and Fig. 3, in figure it can be seen that the specific structure of movable contact spring, particularly Elastic deformation structure.

Fig. 6 is the assembly combining structure schematic diagram of the iron core and movable contact spring in Fig. 2 and Fig. 3, can be seen that movable contact spring in figure Specific structure, particularly elastic deformation structure and movable contact spring the lower end of iron core is connected to by iron core assembly hole.

Fig. 7 is operation principle schematic diagram of the present invention in coil stimulating moment, it can be seen in the drawing that coil dead When, movable contact spring is assemblied in the bottom surface of bobbin by fixation hole in a manner of face contact, and movable contact spring passes through iron core assembly hole and iron core Bottom end connection, the stationary contact closure of the movable contact connected on movable contact spring quiet spring component under, the stationary contact with upper electrostatic spring component It disconnects；After coil stimulating, coil current generates magnetic flux in magnetic circuit, and iron core generates the work moved up under the action of magnetic flux Firmly, and then uplink is mobile, and the mobile iron core of uplink pulls movable contact spring to be moved to movable contact position of quiet spring component under The position of quiet spring component, while movable contact spring deformation generates stress.

Fig. 8 is the operation principle schematic diagram that the present invention cancels excitation moment in coil, it can be seen in the drawing that coil is not Before cancelling excitation, iron core rests on yoke under the action of electromagnetic force, the movable contact connected on movable contact spring and upper electrostatic spring component Stationary contact be attracted, under quiet spring component stationary contact disconnect；After coil cancels excitation, electromagnetic force disappears, and iron core is in movable contact spring Stress under move down, to be restored to home position.

Fig. 9 be in Fig. 8 partial enlarged view (i.e. movable contact spring and bobbin, iron core, upper electrostatic spring component and under quiet spring component it Between mating area), it can be seen in the drawing that the elastic strain power F on movable contact spring₁It is mainly reflected in F at the first deformation_1A(i.e. Transfer at step), F at the second deformation_1BF at (i.e. elastic-deformation holes are with exterior domain), third deformation_1C(the i.e. mouth of elastic-deformation holes At portion/in other words iron core assembly hole region root at).

Code name meaning in figure: 1, a-bobbin；2, b-coil；3-iron cores；4, d-yoke；5-movable contact springs；6-lines Enclose pin；7-dynamic spring contacts；8-quiet spring contacts；9-inserting mouths；10-inserting grooves；11-reinforcing ribs；12-heads；13— Connecting pin；14-elastic-deformation holes；15-dynamic spring pins；16-fixation holes；17-contact holes；18-iron core assembly holes；19— Turnover step；The quiet spring component of c-；E-movable spring assembly；F-armature；F-magnetic flux suction；F₁- elastic strain power；F_1A- the first At deformation；F_1BAt-the second deformation；F_1CAt the deformation of-third.

Specific embodiment

The present invention relates to relay, specifically a kind of flip-over type, " sugar cube " type miniature relay, below with multiple realities Example is applied agent technology content of the invention is described in detail.Wherein, embodiment 1 combine Figure of description-i.e. Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9 clearly and detailedly illustrate technical solution of the present invention content, other embodiments Though not drawing attached drawing individually, its main structure still can refer to the attached drawing of embodiment 1.

Herein it should be strongly noted that attached drawing of the invention is schematically, for technology mesh clearly of the invention Have been simplified for unnecessary details, contribute to the technical solution of the prior art to avoid the present invention has been obscured.

Embodiment 1

Referring to fig. 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the present invention includes bobbin 1, iron core 3, yoke 4, movable spring assembly and quiet spring Component.

Wherein, bobbin 1 is top and the bottom end tubular construction that fold extends outward respectively, bobbin 1 it is axially hollow Iron core assembly hole is formed, the outside fold extended structure and thickness of 1 bottom end of bobbin are greater than the structure on top.In bobbin 1 It is usually enameled wire loop that coil 2(is equipped in space between top and bottom end).The bottom of bobbin 1 is provided with and coil 2 Connection, outwardly extending coil pin 6.The side of 1 bottom of bobbin is provided with the inserting groove 10 radially extended, the inserting groove 10 pass straight through to from iron core assembly hole from a lateral position of 1 bottom of bobbin, and inserting groove 10 is that (for details, reference can be made to figures for straight groove structure 2, shown in Fig. 3 and Fig. 4)；The iron core assembly hole periphery at the top of bobbin 1 has three reinforcing ribs 11 to raise upward, and this three Reinforcing rib 11 surrounds the space of a side opening at the top of bobbin 1, and it is radial that the profile in the space need to be greater than following 3 tops of iron core Profile, moreover, the opening direction in the space need to be corresponding with the forming direction of 1 bottom inserting groove 10 of bobbin consistent, this three add The top that following yokes 4 are formed on the top in the space that strengthening tendons 11 are surrounded at the top of bobbin 1 inserts the type groove (Step-edge Junction of type groove Structure is mainly molded at the top inner edge of two pieces of reinforcing ribs 11 of arranged relative), so that the Automated assembly of yoke 4 (specifically may be used It is shown in Figure 4).In addition, the bottom surface of 1 bottom of bobbin is provided with movable spring assembly assembling structure and quiet spring component assembling structure.

Movable spring assembly is mainly made of movable contact spring 5, dynamic spring contact 7 and dynamic spring pin 15, movable contact spring 5 and dynamic spring pin 15 with L-type structure is integrally formed.Fixation hole 16, iron core assembly hole 18 and contact are successively offered on movable contact spring 5 in a manner of being intervally arranged Hole 17, the company of the assembly movable contact spring 5 on the arrangement position and bobbin 1 of fixation hole 16 and iron core assembly hole 18 on movable contact spring 5 Pin 13 and the assembly arrangement position in iron core assembly hole of iron core 3 are corresponding (for details, reference can be made to shown in Fig. 5 and Fig. 6).Movable contact spring 5 Fixation hole 16 and iron core assembly hole 18 between middle region at be bent with turnover step 19, the turnover step 19 be inclined-plane knot Structure, the angular range between step 19 and the movable contact spring elongated surfaces of 16 region of fixation hole of transferring be 30~60 ° (30 °, 40 °, 45 °, 50 ° or 60 ° etc., preferred scope is 40~50 °), it is divided to movable contact spring 5 to two faces for different height by turnover step 19, Fixation hole 16 individually on one face, iron core assembly hole 18 and contact holes 17 on the other surface, transfer step 19 presence meeting Enhance the elastic reaction of spring leaf 5；In order to advanced optimize the elastic reaction of spring leaf 5, the dynamic spring of 18 periphery of iron core assembly hole The elastic-deformation holes 14 of c-type structure are offered on piece 5, which is between iron core assembly hole 18 and contact holes 17 Movable contact spring 5 on, the iron core assembly hole 18 that is located proximate to movable contact spring 5 on of the elastic-deformation holes 14 on movable contact spring 5, and elasticity become The profile molded line in shape hole 14 corresponds to the profile molded line in iron core assembly hole 18, the opening portion face fixation hole 16 of elastic-deformation holes 14 This side (for details, reference can be made to shown in Fig. 5 and Fig. 6).The movable contact spring 5 of aforementioned structure is assemblied in 1 bottom of bobbin by fixation hole 16 Connecting pin 13 on, the movable contact spring 5 of 16 region of fixation hole and the bottom surface of bobbin 1 form close face contact and cooperate, this Sample is to enhance the stability that spring leaf 5 is assembled in 1 bottom surface of bobbin (for details, reference can be made to shown in Fig. 2 and Fig. 3).Aforementioned structure is moved (for details, reference can be made to Fig. 6 by the bottom end assembly connections of iron core assembly hole 18 and following iron cores 3 being assemblied in bobbin 1 for reed 5 It is shown), specific connection structure can be common riveting method, and the contact holes 17 of movable contact spring 5, which are used as, assembles dynamic spring contact 7, iron core The movable contact spring 5 of 17 region of pilot hole 18 and contact holes needs to keep free gap cooperation with the bottom surface of bobbin 1.Thus may be used To find out, by aforementioned bending structure turnover step 19 by movable contact spring 5 divide for 1 bottom surface face contact mating area of bobbin and guarantor Hold free gap mating area.

Quiet spring component is mainly made of static contact spring piece, quiet spring contact 8 and quiet spring pin.Static contact spring piece passes through 1 bottom of bobbin Corresponding assembling structure and the bottom surface for being fixed on bobbin 1, quiet spring contact 8 and 1 bottom of bobbin on static contact spring piece fix dynamic spring The dynamic spring contact 7 of component keeps corresponding matching.In the present embodiment, quiet spring component is two groups, and one group is normally opened quiet spring component, separately One group is normally closed quiet spring component, and the dynamic spring contact 7 of movable spring assembly is between the quiet spring contact of two groups of quiet spring components, and with it is normally closed The quiet spring contact of quiet spring component is attracted and the quiet spring contact of normally opened quiet spring component disconnects.

The axial length of iron core 3 is greater than the axial height of bobbin 1.The diameter of 3 body part of iron core corresponds to bobbin 1 On iron core assembly hole diameter, the head for the iron core assembly bore dia that there is outer diameter to be greater than on bobbin 1 for the top of iron core 3 12, entire 3 T-shaped structure of iron core (for details, reference can be made to shown in Fig. 2, Fig. 3 and Fig. 6)；It is required that aforementioned 3 top head 12 of iron core is straight Diameter is less than the space that above-mentioned 1 three reinforcing ribs 11 in top of bobbin are enclosed；In order to work corresponding and steady with following yokes 4 Make, 12 top surface of head of iron core 3 is planar structure.The bottom end of iron core 3 has an axial evagination and diameter corresponds to above-mentioned dynamic spring The connector of 18 diameter of iron core assembly hole on piece 5.Iron core 3 is axially mounted in the iron core assembly hole of above-mentioned bobbin 1, iron core 3 On head 12 be in the top end of above-mentioned bobbin 1, the connector of 3 bottom end of iron core extends the iron core assembly hole on bobbin 1 And it is corresponding with the iron core assembly hole on movable contact spring 5, iron core 3 passes through the connector of bottom end and above-mentioned 1 bottom of bobbin that is fixed on 18 assembly connection of iron core assembly hole on movable contact spring 5 (for details, reference can be made to shown in Fig. 2 and Fig. 3).It can be seen that aforementioned iron core 3 Top, bottom both ends are corresponding top, the bottom both ends that can extend on above-mentioned bobbin 1.

Yoke 4 is the flat folded edges (i.e. position between two sides is straight flange structure) similar to c-type, yoke 4 Bottom to the height between top corresponds to the distance between 1 bottom of bobbin to top.The bottom of yoke 4 is above-mentioned to be fit to The straight panel strip structure of 1 bottom inserting groove 10 of bobbin, the bottom front of yoke 4 have and can correspond to above-mentioned 3 periphery of iron core The inserting mouth 9 of profile, the inserting mouth 9 are formed with U-shaped structure, can both be formed in this way with the iron core 3 on above-mentioned bobbin 1 Movable matching relationship, and the contact area of yoke 4 and the iron core 3 on above-mentioned bobbin 1 can be increased, to reduce inoperative gas Gap；The top of yoke 4 is the straight panel bar shaped knot for being fit to type groove at the top of 11 enclosed space of reinforcing rib of above-mentioned three, 1 top of bobbin Structure, i.e. the inside top surface of yoke 4 are planar structure, in this way can be with the head of the iron core 3 assembled on above-mentioned bobbin 1 12 form reliably corresponding matching relationship.The yoke 4 of aforementioned structure is inserted into the inserting groove 10 of above-mentioned 1 bottom of bobbin with bottom It is interior, and cooperated with the iron core 3 on the U-shaped structure of bottom front inserting mouth 9 and above-mentioned bobbin 1；At the same time, aforementioned structure Yoke 4 is inserted into the type groove of the surrounded top of space of three reinforcing ribs 11 at above-mentioned 1 top of bobbin with top, so that yoke 4 top extends to the over top of above-mentioned bobbin 1, and the top of yoke 4 is in the head of the iron core 3 in above-mentioned bobbin 1 12 top of portion, is cooperated each other with planar structure between the inside top surface of yoke 4 and the head 12 of iron core 3, prevents iron core 3 from existing The technical issues of radial leap up is generated in axial displacement activity, in this way, being preferably such that inside top surface and the iron core of yoke 4 Contour or almost contour adapted space is formed between 3 head 12, the top of yoke 4 constitutes the activity of iron core 3 in the axial direction Space, the head 12 of iron core 3 are used as pole-face, yoke 4 and its to form working gas gap, for details, reference can be made to Fig. 2, Fig. 3 and Fig. 4 institutes Show.

The course of work of the invention referring to shown in Fig. 7, Fig. 8 and Fig. 9, approximately as:

Applying electric current to coil 2 by coil pin 6,2 electrical impulse of coil generates magnetic flux as shown in Figure 7 in magnetic circuit, Magnetic flux suction F is generated in working gas gap；When excitation current rising reaches a certain setting value, the torque general gram of magnetic flux suction F The elastic reaction square for taking movable contact spring 5 moves up iron core 3 axially, the inner surface at 4 top of 12 top surface of head and yoke of iron core 3 Contact, finally rests on yoke 4, and the iron core 3 moved up has driven movable contact spring 5 to upwarp deformation, and 5 deformation of movable contact spring generates stress, The deformation of movable contact spring 5 provides overtravel, and the c-type elastic-deformation holes 14 on movable contact spring 5 increase dynamic spring flexibility, reduce dynamic spring The quiet spring contact 8 of hardness, the dynamic spring contact 7 of 5 end of movable contact spring and normally opened quiet spring component is attracted and the quiet spring of normally closed quiet spring component Contact 8 disconnects；

After coil 2 removes excitation, when the excitation current on coil 2 is reduced to a certain setting value or eliminates, movable contact spring 5 is extensive The elastic stress F of complex deformation₁As shown in Figure 8 and Figure 9 is released, and iron core 3 is transported downwards under the action of 5 elastic force of movable contact spring Dynamic, 12 top surface of head and 4 inside top surface of yoke of the iron core 3 axially moved down disconnect, and movable contact spring 5 resets to home position, The quiet spring contact 8 of the dynamic spring contact 7 of 5 end of movable contact spring and normally closed quiet spring component is attracted and the quiet spring contact 8 of normally opened quiet spring component It disconnects；In the process, it due to having 14 structure of elastic-deformation holes around the junction of movable contact spring 5 and iron core 3 of the invention, moves Elastic strain power F on reed 5₁It is mainly reflected in F at the first deformation_1AF at (i.e. at turnover step 19), the second deformation_1B(i.e. bullet Property deformation hole 14 with exterior domain), F at third deformation_1C(i.e. at the oral area of elastic-deformation holes 14/or perhaps iron core assembly hole 18 At the root of region), i.e., deformation at least three is formd on movable contact spring 5 of the invention, by movable contact spring structure of the invention In contrast with the movable contact spring (hereinafter referred to as " not opening elastic-deformation holes movable contact spring ") without elastic-deformation holes, elastic change is not opened The elastic strain power of shape hole movable contact spring is mainly reflected at the first deformation, at the second deformation and movable contact spring entirety deformation, i.e. counter-force Mainly by being generated at the first deformation and the second deformation, and F at increased third deformation on movable contact spring of the present invention 5_1CBecause transversal Face is smaller, and generated reaction force is also smaller, so that F at the first deformation on movable contact spring of the present invention 5_1AWith F at the second deformation_1BShape The deformation that do not open at the first deformation on elastic-deformation holes movable contact spring and at the second deformation will be less than by becoming, relative to the mobile phase of iron core When same distance, the whole counter-force generated on movable contact spring 5 of the present invention, which is less than, does not open elastic-deformation holes movable contact spring, movable contact spring of the present invention 5 overall performance obtains flexibility higher than elastic-deformation holes movable contact spring is not opened, i.e., the overall performance of movable contact spring 5 of the present invention obtains flexibility more It is high.

Embodiment 2

The present invention includes bobbin, iron core, yoke, movable spring assembly and quiet spring component.

Wherein, bobbin is top and the bottom end tubular construction that fold extends outward respectively, the axially hollow shape of bobbin At iron core assembly hole, the outside fold extended structure and thickness of bobbin bottom end are greater than the structure on top.On the top of bobbin Coil (usually enameled wire loop) is equipped in space between bottom end.The bottom of bobbin be provided with it is being connect with coil, Outwardly extending coil pin.The side of bobbin bottom is provided with the inserting groove radially extended, and the inserting groove is from bobbin bottom One lateral position in portion passes straight through at iron core assembly hole, and inserting groove is straight groove structure；Iron core assembly hole periphery at the top of bobbin With three reinforcing ribs to raise upward, this three reinforcing ribs surround the space of a side opening, the space at the top of bobbin Profile need to be greater than following iron core tops radial contour, moreover, the opening direction in the space need to be with bobbin bottom inserting groove Forming direction is corresponding consistent, and the top of following yokes is formed on the top in the space that this three reinforcing ribs are surrounded at the top of bobbin It inserts type groove (step structure of type groove is mainly molded at the top inner edge of two pieces of reinforcing ribs of arranged relative), so as to yoke Automated assembly.In addition, the bottom surface of bobbin bottom is provided with movable spring assembly assembling structure and quiet spring component assembling structure.

Movable spring assembly is mainly made of movable contact spring, dynamic spring contact and dynamic spring pin, and movable contact spring and dynamic spring pin are with L-type structure It is integrally formed.Fixation hole, iron core assembly hole and contact holes are successively offered on movable contact spring in a manner of being intervally arranged, on movable contact spring The connecting pin of assembly movable contact spring and the iron core of assembly iron core on the arrangement position and bobbin in fixation hole and iron core assembly hole fill The arrangement position of distribution is corresponding.It is bent with turnover step at middle region between the fixation hole and iron core assembly hole of movable contact spring, The turnover step is bevel structure, and the angular range transferred between step and the movable contact spring elongated surfaces of fixation hole region is 30 ~60 ° (30 °, 40 °, 45 °, 50 ° or 60 ° etc., preferred scope is 40~50 °), movable contact spring is divided into different height by turnover step Two faces of degree, fixation hole individually on one face, iron core assembly hole and contact holes on the other surface, the presence for step of transferring The elastic reaction of spring leaf can be enhanced；In order to advanced optimize the elastic reaction of spring leaf, the movable contact spring of iron core assembly hole periphery On offer the elastic-deformation holes of c-type structure, which is on the movable contact spring between iron core assembly hole and contact holes, The iron core assembly hole that is located proximate to movable contact spring on of the elastic-deformation holes on movable contact spring, and the profile molded line of elastic-deformation holes is corresponding Profile molded line in iron core assembly hole, opening portion this side of face fixation hole of elastic-deformation holes.The movable contact spring of aforementioned structure is logical It crosses fixation hole to be assemblied on the connecting pin of bobbin bottom, the movable contact spring of fixation hole region and the bottom surface of bobbin are formed tightly Close face contact cooperation, in this way to enhance the stability that spring leaf is assembled in bobbin bottom surface.The movable contact spring of aforementioned structure passes through The bottom end assembly connection in iron core assembly hole and following iron cores being assemblied in bobbin, the contact holes of movable contact spring, which are used as, assembles dynamic spring The movable contact spring of contact, iron core assembly hole and contact holes region needs to keep free gap cooperation with the bottom surface of bobbin.By This, which can be seen that, is divided into movable contact spring and bobbin bottom surface face contact mating area and guarantor by the turnover step of aforementioned bending structure Hold free gap mating area.

Quiet spring component is mainly made of static contact spring piece, quiet spring contact and quiet spring pin.Static contact spring piece passes through pair of bobbin bottom It answers assembling structure and is fixed on the bottom surface of bobbin, the quiet spring contact and the fixed movable spring assembly in bobbin bottom on static contact spring piece Dynamic spring contact keeps corresponding matching.In the present embodiment, quiet spring component is one group.

The axial length of iron core is greater than the axial height of bobbin.The diameter of core body part corresponds on bobbin The diameter in iron core assembly hole, the head for the iron core assembly bore dia that there is outer diameter to be greater than on bobbin on the top of iron core, entire iron The T-shaped structure of core；It is required that the diameter on aforementioned iron core top head is less than the space that three reinforcing ribs are enclosed at the top of above-mentioned bobbin； In order to and smooth working corresponding with following yokes, the head top surface of iron core is planar structure.The bottom end of iron core has axial Evagination and diameter correspond to above-mentioned movable contact spring on iron core assembly bore dia connector.Iron core is axially mounted to above-mentioned coil In the iron core assembly hole of frame, the head on iron core is in the top end of above-mentioned bobbin, and the connector of iron core bottom end extends coil The iron core assembly hole on iron core assembly Kong Eryu movable contact spring on frame is corresponding, and iron core is fixed on by the connector of bottom end with above-mentioned Iron core assembly hole assembly connection on the movable contact spring of bobbin bottom.It can be seen that the top of aforementioned iron core, bottom both ends are can to prolong Stretch out the corresponding top of above-mentioned bobbin, bottom both ends.

Yoke is the flat folded edges (i.e. position between two sides is straight flange structure) similar to c-type, the bottom of yoke Portion to the height between top corresponds to the distance between bobbin bottom to top.The bottom of yoke is to be fit to above-mentioned coil The straight panel strip structure of frame bottom inserting groove, the bottom front of yoke have the inserting that can correspond to above-mentioned outer diameter profile Mouthful, which is formed with U-shaped structure, both movable matching relationship can be formed with the iron core on above-mentioned bobbin in this way, The contact area of the iron core on yoke and above-mentioned bobbin can be increased, again to reduce non-working-gap；The top of yoke is kiss Together in the straight panel strip structure of three reinforcing rib enclosed spaces top type grooves at the top of above-mentioned bobbin, i.e. the inside top table of yoke Face is planar structure, can form reliably corresponding matching relationship with the head of the iron core assembled on above-mentioned bobbin in this way. The yoke of aforementioned structure is inserted into the inserting groove of above-mentioned bobbin bottom with bottom, and with the inserting of the U-shaped structure of bottom front Mouth cooperates with the iron core on above-mentioned bobbin；At the same time, the yoke of aforementioned structure is inserted at the top of above-mentioned bobbin with top Three surrounded top of space of reinforcing rib type groove in so that extend to the over top of above-mentioned bobbin at the top of yoke, And the above-head of the iron core in above-mentioned bobbin is at the top of yoke, the head of the inside top surface of yoke and iron core it Between the technical issues of being cooperated each other with planar structure, preventing iron core from generating radial leap up in axial displacement activity, in this way, best It can make to form contour or almost contour adapted space, the top of yoke between the inside top surface of yoke and the head of iron core Portion constitutes iron core activity space in the axial direction, the head of iron core as pole-face, yoke and its to form working gas gap.

The course of work of the invention approximately as:

Apply electric current to coil by coil pin, coil energization excitation generates magnetic flux in magnetic circuit, produces in working gas gap Magnetisation leads to suction；When excitation current rising reaches a certain setting value, the torque of magnetic flux suction will overcome the elasticity of movable contact spring anti- Torque makes iron mandrel to moving up, and the head top surface of iron core is contacted with the inner surface at the top of yoke, finally rests on yoke, The iron core moved up has driven movable contact spring to upwarp deformation, and movable contact spring deformation generates stress, the dynamic spring contact and quiet spring of movable contact spring end The quiet spring contact of component is attracted；

After coil removes excitation, when the excitation current on coil is reduced to a certain setting value or eliminates, movable contact spring restores The elastic stress of deformation is released, and iron core moves downward, the head of the iron core axially moved down under the action of movable contact spring elastic force Top surface and yoke inside top surface disconnect, and movable contact spring resets to home position, the dynamic spring contact of movable contact spring end and quiet spring group The quiet spring contact of part disconnects.

Embodiment 3

Wherein, bobbin is top and the bottom end tubular construction that fold extends outward respectively, the axially hollow shape of bobbin At iron core assembly hole, the outside fold extended structure and thickness of bobbin bottom end are greater than the structure on top.On the top of bobbin Coil (usually enameled wire loop) is equipped in space between bottom end.The bottom of bobbin be provided with it is being connect with coil, Outwardly extending coil pin.The side of bobbin bottom is provided with the inserting groove radially extended, and the inserting groove is from bobbin bottom One lateral position in portion passes straight through at iron core assembly hole, and inserting groove is straight groove structure.In addition, the bottom surface of bobbin bottom is provided with Movable spring assembly assembling structure and quiet spring component assembling structure.

Quiet spring component is mainly made of static contact spring piece, quiet spring contact and quiet spring pin.Static contact spring piece passes through pair of bobbin bottom It answers assembling structure and is fixed on the bottom surface of bobbin, the quiet spring contact and the fixed movable spring assembly in bobbin bottom on static contact spring piece Dynamic spring contact keeps corresponding matching.In the present embodiment, quiet spring component be two groups, one group be normally opened quiet spring component, another group be Normally closed quiet spring component, the dynamic spring contact of movable spring assembly are between the quiet spring contact of two groups of quiet spring components, and with normally closed quiet spring group The quiet spring contact of part is attracted and the quiet spring contact of normally opened quiet spring component disconnects.

The axial length of iron core is greater than the axial height of bobbin.The diameter of core body part corresponds on bobbin The diameter in iron core assembly hole, the head for the iron core assembly bore dia that there is outer diameter to be greater than on bobbin on the top of iron core, entire iron The T-shaped structure of core；In order to and smooth working corresponding with following yokes, the head top surface of iron core is planar structure.Iron core Connector that bottom end has axial evagination and that diameter is corresponding to the iron core assembly bore dia on above-mentioned movable contact spring.Iron core axially fills It fits in the iron core assembly hole of above-mentioned bobbin, the head on iron core is in the top end of above-mentioned bobbin, and iron core bottom end connects The iron core assembly hole that head extends on the iron core assembly Kong Eryu movable contact spring on bobbin is corresponding, the connector that iron core passes through bottom end With the iron core assembly hole assembly connection on the above-mentioned movable contact spring for being fixed on bobbin bottom.It can be seen that the top of aforementioned iron core, bottom Both ends are corresponding top, the bottom both ends that can extend above-mentioned bobbin.

Yoke is the flat folded edges (i.e. position between two sides is straight flange structure) similar to c-type, the bottom of yoke Portion to the height between top corresponds to the distance between bobbin bottom to top.The bottom of yoke is to be fit to above-mentioned coil The straight panel strip structure of frame bottom inserting groove, the bottom front of yoke have the inserting that can correspond to above-mentioned outer diameter profile Mouthful, which is formed with U-shaped structure, both movable matching relationship can be formed with the iron core on above-mentioned bobbin in this way, The contact area of the iron core on yoke and above-mentioned bobbin can be increased, again to reduce non-working-gap；The top of yoke is straight Slab structure, i.e. the inside top surface of yoke are planar structure, in this way can be with the iron core that is assembled on above-mentioned bobbin Head form reliably corresponding matching relationship.The yoke of aforementioned structure is inserted into the inserting groove of above-mentioned bobbin bottom with bottom It is interior, and cooperated with the iron core on the U-shaped structure of bottom front inserting mouth and above-mentioned bobbin；Prolong at the top of the yoke of aforementioned structure The above-head for the iron core for extending to the over top of above-mentioned bobbin, and being at the top of yoke in above-mentioned bobbin, yoke Cooperated each other with planar structure between inside top surface and the head of iron core, prevents iron core from generating diameter in axial displacement activity To the technical issues of leaping up, in this way, be preferably such that between the inside top surface of yoke and the head of iron core formed it is contour or Almost contour adapted space, the top of yoke constitute the activity space of iron core in the axial direction, and the head of iron core is as pole-face, yoke Iron and its to form working gas gap.

The course of work of the invention approximately as:

Apply electric current to coil by coil pin, coil energization excitation generates magnetic flux in magnetic circuit, produces in working gas gap Magnetisation leads to suction；When excitation current rising reaches a certain setting value, the torque of magnetic flux suction will overcome the elasticity of movable contact spring anti- Torque makes iron mandrel to moving up, and the head top surface of iron core is contacted with the inner surface at the top of yoke, finally rests on yoke, The iron core moved up has driven movable contact spring to upwarp deformation, and movable contact spring deformation generates stress, the dynamic spring contact of movable contact spring end with it is normally opened The quiet spring contact of quiet spring component is attracted and the quiet spring contact of normally closed quiet spring component disconnects；

After coil removes excitation, when the excitation current on coil is reduced to a certain setting value or eliminates, movable contact spring restores The elastic stress of deformation is released, and iron core moves downward, the head of the iron core axially moved down under the action of movable contact spring elastic force Top surface and yoke inside top surface disconnect, and movable contact spring resets to home position, the dynamic spring contact of movable contact spring end with it is normally closed quiet The quiet spring contact of spring component is attracted and the quiet spring contact of normally opened quiet spring component disconnects.

Embodiment 4

Movable spring assembly is mainly made of movable contact spring, dynamic spring contact and dynamic spring pin, and movable contact spring and dynamic spring pin are with L-type structure It is integrally formed.Movable contact spring is smooth laminated structure, successively offers fixation hole, iron core dress on movable contact spring in a manner of being intervally arranged Distribution and contact holes, the company of the assembly movable contact spring on the arrangement position and bobbin of fixation hole and iron core assembly hole on movable contact spring Pin is corresponding with the assembly arrangement position in iron core assembly hole of iron core.In order to enhance the elastic reaction of spring leaf, iron core assembly The elastic-deformation holes of c-type structure are offered on the movable contact spring of hole periphery, which is in iron core assembly hole and contact holes Between movable contact spring on, the iron core assembly hole that is located proximate to movable contact spring on of the elastic-deformation holes on movable contact spring, and flexible deformation The profile molded line in hole corresponds to the profile molded line in iron core assembly hole, opening portion this side of face fixation hole of elastic-deformation holes.Before The movable contact spring for stating structure is assemblied on the connecting pin of bobbin bottom by fixation hole, the movable contact spring and line of fixation hole region The bottom surface of coil forms close face contact cooperation, in this way to enhance the stability that spring leaf is assembled in bobbin bottom surface；Dynamic spring The bobbin bottom surface of above structure corresponding to central region between the fixation hole and iron core assembly hole of piece has the platform of indent Stage structure, the step structure make the bobbin bottom surface of above structure have two faces of different height, are based on the step structure Presence so that the movable contact spring and bobbin of iron core assembly hole and contact holes region bottom surface keep free gap cooperation. The movable contact spring of aforementioned structure passes through the bottom end assembly connection in iron core assembly hole and following iron cores being assemblied in bobbin, movable contact spring Contact holes be used as and assemble dynamic spring contact.It can thus be seen that the movable contact spring of smooth laminated structure is because of bobbin bottom surface Step-edge Junction The presence of structure, and movable contact spring is divided into and bobbin bottom surface face contact mating area and holding free gap mating area.

The course of work of the invention approximately as:

Embodiment 5

Yoke is the flat folded edges (i.e. position between two sides is straight flange structure) similar to c-type, the bottom of yoke Portion to the height between top corresponds to the distance between bobbin bottom to top.The bottom of yoke is to be fit to above-mentioned coil The straight panel strip structure of frame bottom inserting groove；The top of yoke is to be fit to three reinforcing rib enclosed spaces at the top of above-mentioned bobbin The straight panel strip structure of top type groove, i.e. the inside top surface of yoke be planar structure, in this way can on above-mentioned bobbin The head of the iron core assembled forms reliably corresponding matching relationship.The yoke of aforementioned structure is inserted into above-mentioned bobbin with bottom In the inserting groove of bottom, and bottom front docks cooperation with the iron core on above-mentioned bobbin；At the same time, the yoke of aforementioned structure In the type groove for three surrounded top of space of reinforcing rib being inserted at the top of above-mentioned bobbin with top, so that prolonging at the top of yoke The above-head for the iron core for extending to the over top of above-mentioned bobbin, and being at the top of yoke in above-mentioned bobbin, yoke Cooperated each other with planar structure between inside top surface and the head of iron core, prevents iron core from generating diameter in axial displacement activity To the technical issues of leaping up, in this way, be preferably such that between the inside top surface of yoke and the head of iron core formed it is contour or Almost contour adapted space, the top of yoke constitute the activity space of iron core in the axial direction, and the head of iron core is as pole-face, yoke Iron and its to form working gas gap.

The course of work of the invention approximately as:

Embodiment 6

Yoke is the flat folded edges (i.e. position between two sides is straight flange structure) similar to c-type, the bottom of yoke Portion to the height between top corresponds to the distance between bobbin bottom to top.The bottom of yoke is to be fit to above-mentioned coil The straight panel strip structure of frame bottom inserting groove, the bottom front of yoke have the inserting that can correspond to above-mentioned outer diameter profile Mouthful, which is formed with round structure, both movable matching relationship can be formed with the iron core on above-mentioned bobbin in this way, The contact area of the iron core on yoke and above-mentioned bobbin can be increased, again to reduce non-working-gap (round structure inserting mouth It is greater than U-shaped structure with the contact area of iron core and inserts mouth, can more reduce non-working-gap)；The top of yoke is above-mentioned to be fit to The straight panel strip structure of three reinforcing rib enclosed spaces top type grooves at the top of bobbin, i.e. the inside top surface of yoke is plane Structure can form reliably corresponding matching relationship with the head of the iron core assembled on above-mentioned bobbin in this way.Aforementioned structure Yoke be inserted into bottom in the inserting groove of above-mentioned bobbin bottom, and with the round structure of bottom front inserting mouth with it is above-mentioned On bobbin iron core cooperation (based on round structure inserting mouth closed performance, can not be simply inserted into out of inserting groove and Directly cooperate with the iron core assembled on bobbin, needs to make corresponding adjustment from assembly technology, such as first fill on bobbin After preparing yoke, then iron core is installed in the iron core assembly hole of bobbin, and the head of iron core can be considered and be arranged to detachably Structure etc., specific assembly technology can regard technical problem and otherwise designed, only make an explanation herein to their fit structure, until Separately consider in specific assembly technology)；At the same time, the yoke of aforementioned structure is inserted into three at the top of above-mentioned bobbin with top In the type groove of the surrounded top of space of reinforcing rib, so that extending to the over top of above-mentioned bobbin at the top of yoke, and yoke The above-head of the iron core in above-mentioned bobbin is at the top of iron, between the inside top surface of yoke and the head of iron core that The technical issues of this is cooperated with planar structure, prevents iron core from generating radial leap up in axial displacement activity, so, it is desirable to Make to form contour or almost contour adapted space, the top structure of yoke between the inside top surface of yoke and the head of iron core At the activity space of iron core in the axial direction, the head of iron core as pole-face, yoke and its to form working gas gap.

The course of work of the invention approximately as:

The above various embodiments is only to illustrate the present invention, rather than its limitations.Although referring to the various embodiments described above to this hair It is bright to be described in detail, those skilled in the art should understand that: it still can be in the various embodiments described above Specific technical solution is modified or equivalent replacement of some of the technical features；And these are modified or replaceed, and The essence of corresponding technical solution is not set to be detached from the spirit and scope of the present invention.

Claims

1. a kind of flip-over type miniature relay, including bobbin (1), iron core (3), yoke (4), movable spring assembly and quiet spring component, It is equipped with coil (2) on the bobbin (1), the movable spring assembly and quiet spring component are respectively assembled at the bobbin (1) Bottom simultaneously makes spring contact (7) and quiet spring contact (8) corresponding matching, it is characterised in that: the iron core (3) can be prolonged with both ends The mode for stretching out the bobbin (1) corresponding end is axially mounted in the bobbin (1), the bottom end of the iron core (3) with The movable contact spring (5) of movable spring assembly connects, and the bottom of the yoke (4) is assemblied in the bobbin (1) bottom, top extends to institute The over top of bobbin (1) is stated, and is in the top end of the iron core (3) at the top of the yoke (4), described in composition The activity space of iron core (3) in the axial direction.

2. flip-over type miniature relay according to claim 1, it is characterised in that: the inside top surface of the yoke (4) For planar structure；Corresponding, the top of the iron core (3) is also planar structure.

3. flip-over type miniature relay according to claim 1 or claim 2, it is characterised in that: the yoke (4) is c-type structure.

4. flip-over type miniature relay according to claim 1 or claim 2, it is characterised in that: the top of the iron core (3) has outer Diameter is greater than the head (12) of the iron core assembly bore dia on bobbin (1), the T-shaped structure of entire iron core (3), the iron core (3) On head (12) be in the top end of bobbin (1), head (12) top surface of the iron core (3) is planar structure.

5. flip-over type miniature relay according to claim 1, it is characterised in that: the bottom of the bobbin (1) offers The inserting groove (10) of the yoke (4) is assembled, the inserting groove (10) passes to iron core assembly from the lateral position of bobbin (1) bottom It at hole and is straight groove structure, the bottom of the yoke (4) is the vertical bar structure of the inserting groove (10) of coincideing, the yoke (4) Bottom be assemblied in the bottom of the bobbin (1) by the inserting groove (10).

6. flip-over type miniature relay according to claim 5, it is characterised in that: the bottom front of the yoke (4) has The inserting mouth (9) of corresponding iron core (3) circumferential profile.

7. flip-over type miniature relay according to claim 6, it is characterised in that: the inserting of yoke (4) bottom front Mouth (9) is U-shaped structure or circular configuration.

8. according to claim 1 or the 5 flip-over type miniature relays, it is characterised in that: the iron core at the top of the bobbin (1) Pilot hole periphery has three reinforcing ribs (11) to raise upward, this three reinforcing ribs (11) surround at the top of bobbin (1) Profile is greater than the space of iron core (3) radial contour, and the space that is surrounded at the top of the bobbin (1) of this three reinforcing ribs (11) The top inserting type groove of the yoke (4) is formed on top, and the top of the yoke (4) passes through three at the top of the bobbin (1) Inserting type groove that reinforcing rib (11) is surrounded and the top for being assemblied in the bobbin (1).

9. flip-over type miniature relay according to claim 1, it is characterised in that: on the movable contact spring (5) of the movable spring assembly Fixation hole (16), iron core assembly hole (18) and contact holes (17) are successively offered in a manner of being intervally arranged, the movable contact spring (5) is logical The bottom that fixation hole (16) is assemblied in the bobbin (1) is crossed, the movable contact spring (5) passes through iron core assembly hole (18) and iron core (3) bottom end assembly connection, the contact holes (17), which are used as, assembles dynamic spring contact (7), fixation hole (16) region The movable contact spring (5) and the bottom surface forming face of the bobbin (1) are engaged, the iron core assembly hole (18) and contact holes (17) bottom surface of the movable contact spring (5) of region and the bobbin (1) keeps free gap cooperation.

10. flip-over type miniature relay according to claim 9, it is characterised in that: the fixation hole (16) of the movable contact spring (5) Region between iron core assembly hole (18) has turnover step (19), is divided into movable contact spring (5) by the turnover step (19) With the bobbin (1) bottom surface face contact mating area and holding free gap mating area.

11. according to the flip-over type miniature relay of claim 9 or 10, it is characterised in that: the iron core assembly hole (18) is outside The elastic-deformation holes (14) of c-type structure are offered on the movable contact spring (5) in week, the elastic-deformation holes (14) are in the iron core dress On movable contact spring (5) between distribution (18) and contact holes (17).