CN115458372A

CN115458372A - Modular relay structure with high part universality and strong compatibility

Info

Publication number: CN115458372A
Application number: CN202211044170.0A
Authority: CN
Inventors: 宗斌
Original assignee: Mingguang Xinda Electronic Co ltd
Current assignee: Mingguang Xinda Electronic Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-09
Anticipated expiration: 2042-08-30
Also published as: WO2024046334A1; CN115458372B

Abstract

The invention discloses a modular relay structure with high part universality and strong compatibility, wherein an iron core assembly can attract an armature after being electrified, and the armature moves along the iron core assembly axially to reset under the driving action of an elastic hook, namely, the armature moves along the iron core assembly axially when being attracted or bounced, so that a pushing card can be pushed to move along the iron core assembly axially, and then an NC terminal, a movable spring and an NO terminal are sequentially distributed along the iron core assembly axially, so that the pushing card can push the movable spring to contact with the NC terminal and the NO terminal respectively when moving along the iron core assembly, and the switching of a passage is completed.

Description

Modular relay structure with high part universality and strong compatibility

Technical Field

The invention relates to the technical field of relays, in particular to a modular relay structure with high part universality and strong compatibility.

Background

In the prior art, relays are full of types and structures, and are all diverse in types and types, and parts are all five-in-one. Even if the relays of the same manufacturer have slightly different models and structures, the parts have different styles and sizes. This results in the inability of most relays to be structurally compatible and have common parts. Therefore, a lot of manufacturers can invest in a large amount of manpower, material resources and mechanical equipment to produce relays of different models and structures, resources are wasted, labor cost cannot be effectively reduced, and meanwhile great difficulty is brought to part management and personnel management. In the past, all parts of the same type of relay cannot be used universally, multiple sets of parts need to be designed according to multiple types, and part management and production switching are complicated.

Disclosure of Invention

The invention aims to provide a modular relay structure with high part universality and strong compatibility, which aims to solve the problems in the prior art, the relay adopts a modular design through the matching of the arranged driving mechanism and the load mechanism, only the load mechanism needs to be replaced when different models are aimed at, and other parts are not influenced, so that the compatibility of the whole device is stronger.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a modular relay structure with high part universality and strong compatibility, which comprises a driving mechanism and a load mechanism, wherein the load mechanism can be connected with the driving mechanism in a replaceable manner;

the driving mechanism comprises a hollow insulating cover and an iron core assembly arranged on the inner side of the hollow insulating cover, wherein an opening for one end of the iron core assembly to extend out is formed in the hollow insulating cover, the end part of the iron core assembly, which extends out of the opening, is matched with an armature attracted with the iron core assembly, the iron core assembly is connected with an elastic hook for driving the armature to axially eject along the iron core assembly, a pushing clamp is arranged on the side wall of the hollow insulating cover along the axial sliding of the iron core assembly, one end of the pushing clamp is connected with the armature, and the other end of the pushing clamp extends out of the hollow insulating cover;

load mechanism includes the base, the base is including being used for dismantling the connection the connecting portion of cavity insulating boot, being located the iron core subassembly is kept away from the load portion of armature one side, be equipped with the edge in the load portion NC terminal, movable contact and the NO terminal that the iron core subassembly axial distributes in proper order, the NC terminal with all be equipped with the stationary contact on the NO terminal, the movable contact with the promotion card stretches out the connection can be dismantled to the tip of cavity insulating boot, and follow the removal of promotion card respectively towards the NC terminal with the NO terminal swing, be equipped with on the movable contact along with its swing respectively with two the movable contact of stationary contact.

Preferably, the iron core subassembly includes I-shaped plastic skeleton, the iron core is worn to be equipped with coaxially in the axle center of I-shaped plastic skeleton, stretch out respectively at the both ends of iron core I-shaped plastic skeleton, its one end is fixed on the cavity insulating boot, the other end with hold up the iron actuation mutually, the periphery winding of I-shaped plastic skeleton has the enameled wire, the one end of I-shaped plastic skeleton is stretched out the opening is equipped with first joint portion, the cavity insulating boot is kept away from open-ended one end is equipped with second joint portion, be equipped with on the connecting portion and dismantle the connection respectively first joint portion with the draw-in groove of second joint portion.

Preferably, a yoke iron is arranged between the enameled wire and the hollow insulating cover, the yoke iron extends along the axial direction of the iron core, one end of the yoke iron is riveted to the end part of the iron core fixed on the hollow insulating cover, and the other end of the yoke iron is supported on the armature iron.

Preferably, the elastic hook is connected between the yoke and the armature, one end of the armature is overlapped on the yoke, the other end of the armature is hinged on the pushing clamp, and the armature is separated from the iron core after the elastic hook returns.

Preferably, the first clamping portion is provided with a pair of lead pins for electrifying the enameled wire, and the connecting portion is provided with a connecting groove for extending the lead pins.

Preferably, a first mounting groove for mounting the movable spring piece is formed in the load portion, a movable spring terminal connected with the movable spring piece is arranged at the first mounting groove, and a first pin extending out of the load portion is arranged on the movable spring terminal.

Preferably, the load part is provided with a second mounting groove and a third mounting groove for detachably mounting the NC terminal and the NO terminal respectively, the NC terminal and the NO terminal are both provided with a second pin extending out of the load part, and the movable spring terminal is detachably connected with the first mounting groove.

Preferably, the pushing clamp is provided with a plurality of protrusions extending along the axial direction of the iron core, and the movable reed is provided with openings which are respectively and correspondingly detachably inserted into the protrusions along two sides perpendicular to the axial direction of the iron core.

Preferably, a sliding groove and a sliding block which are in sliding fit are arranged between the pushing clamp and the hollow insulating cover, and the sliding groove and the sliding block extend along the axial direction of the iron core.

Preferably, the base plate is provided with a housing detachably connected thereto, and the housing is covered around the driving mechanism and the loading mechanism.

Compared with the prior art, the invention achieves the following technical effects:

firstly, the whole device is matched with a driving mechanism and a loading mechanism to form a modular design, the modular design is compatible with 1P, 2P, T and other models, firstly, the iron core assembly can attract the armature after being electrified, and the armature resets along the axial movement of the iron core assembly under the driving action of the elastic hook, namely, the armature moves along the axial direction of the iron core assembly when attracted or bounced, and then the pushing card can be pushed to move along the axial direction of the iron core assembly, and furthermore, the NC terminal, the movable spring piece and the NO terminal are sequentially distributed along the axial direction of the iron core assembly, so that the pushing card can push the movable spring piece to move along the iron core assembly, and the movable spring piece is respectively contacted with the NC terminal and the NO terminal to complete the conversion of a passage.

Second, the one end of I-shaped plastic skeleton stretches out the opening and is equipped with first joint portion, and the open-ended one end is kept away from to the cavity insulating boot is equipped with second joint portion, is equipped with the draw-in groove that can dismantle respectively and connect first joint portion and second joint portion on the connecting portion, that is to say not only cavity insulating boot can dismantle with the bottom plate and be connected, and I-shaped plastic skeleton can dismantle with the bottom plate moreover and be connected, guarantees the fastness that whole actuating mechanism can be connected with the bottom plate.

And thirdly, a yoke iron is arranged between the enameled wire and the hollow insulating cover, the yoke iron extends along the axial direction of the iron core, one end of the yoke iron is riveted on the end part of the iron core and fixed on the hollow insulating cover, the other end of the yoke iron is supported on the armature iron, the yoke iron and the armature iron form a closed magnetic circuit, and magnetic lines of force generated by the electromagnetic coil of the iron core are closed inside, so that the magnetic energy is fully utilized, and the efficiency of the electromagnet is highest.

Fourthly, the elastic hook is connected between the yoke and the armature, one end of the armature is overlapped on the yoke, the other end of the armature is hinged on the pushing clamp and is separated from the iron core after returning along with the elastic hook, namely, one end of the armature is overlapped on the yoke and is used as a pivot point of the armature swing, and the whole armature is used as a swing structure to increase the moment and ensure the effectiveness of attracting or bouncing off the armature.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a schematic perspective view of the present invention with the housing removed.

Fig. 3 is a perspective view of the hollow insulating cover of the present invention.

Fig. 4 is a schematic perspective view of the hollow insulating cover of the present invention with the hollow insulating cover removed.

Wherein: 1. an I-shaped plastic skeleton; 2. a hollow insulating cover; 3. a hollow cylinder; 4. an iron core; 5. a yoke; 6. an armature; 7. an elastic hook; 8. pushing the card; 9. a housing; 10. a base; 11. a movable spring plate; 12. a second mounting groove; 13. a movable spring terminal; 14. a movable contact; 15. an NC terminal; 16. an NO terminal; 17. a stationary contact; 18. a first clamping part; 19. a card slot; 20. a limiting part; 21. an opening; 22. a chute; 23. a connecting port; 24. a terminal pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a modular relay structure with high part universality and strong compatibility, which solves the problems in the prior art, and the relay adopts a modular design through the matching of the arranged driving mechanism and the load mechanism, so that only the load mechanism needs to be replaced when different models are used, other parts are not influenced, and the compatibility of the whole device is stronger.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1 to 4, in this embodiment, a modular relay structure with high part versatility and high compatibility is provided, which includes a driving mechanism, and a load mechanism that is replaceable and connected to the driving mechanism;

the driving mechanism comprises a hollow insulating cover 2 and an iron core assembly arranged on the inner side of the hollow insulating cover, wherein an opening for extending one end of the iron core assembly is formed in the hollow insulating cover 2, an armature 6 attracted with the iron core assembly is matched and sleeved at the end part of the iron core assembly extending out of the opening, the iron core assembly is connected with an elastic hook 7 for driving the armature 6 to axially spring open along the iron core assembly, a pushing clamp 8 is arranged on the side wall of the hollow insulating cover 2 along the axial direction of the iron core assembly in a sliding manner, one end of the pushing clamp 8 is connected with the armature 6, and the other end of the pushing clamp extends out of the hollow insulating cover 2;

the load mechanism comprises a base 10, the base 10 comprises a connecting portion and a load portion, the connecting portion is used for being detachably connected with the hollow insulating cover 2, the load portion is located on one side, away from the armature 6, of the iron core assembly, an NC terminal 15, a movable contact spring 11 and an NO terminal 16 are arranged on the load portion, the NC terminal 15 and the NO terminal 16 are sequentially distributed in the axial direction of the iron core assembly, stationary contacts 17 are arranged on the NC terminal 15 and the NO terminal 16, the movable contact spring 11 and the end portion, extending out of the hollow insulating cover 2, of the pushing clamp 8 are detachably connected and swing towards the NC terminal 15 and the NO terminal 16 respectively along with movement of the pushing clamp 8, and movable contacts 14 which are in contact with the two stationary contacts 17 respectively along with swing of the movable contact spring 11 are arranged on the movable contact spring.

The whole device forms a modular design through the matching of the driving mechanism and the loading mechanism, and is compatible with various types of 1P, 2P, T and the like, firstly, the iron core assembly can attract the armature 6 after being electrified, and the armature 6 moves and resets along the iron core assembly in the axial direction under the driving action of the elastic hook 7, namely, the armature 6 moves along the iron core assembly in the axial direction when attracted or bounced, and further the pushing card 8 can be pushed to move along the iron core assembly in the axial direction, and furthermore, the NC terminal 15, the movable spring piece 11 and the NO terminal 16 are distributed along the axial direction of the iron core assembly in sequence, so that the pushing card 8 can push the movable spring piece 11 to move along the iron core assembly, and contact with the NC terminal 15 and the NO terminal 16 respectively to complete the switching of a passage, and further, on the basis of the electric contact structure, the hollow insulating cover 2 of the driving mechanism can be detachably connected on the bottom plate of the loading mechanism, when aiming at different types, the NC loading mechanism needs to be replaced, the terminal 15, the movable spring piece 11 and the NO terminal 11 can be detachably connected with the pushing card 8, so that the driving mechanism can be detachably connected with the loading mechanism, and then each driving mechanism can be replaced, and other loading mechanism can be conveniently manufactured, and other relay can be more conveniently manufactured without being affected.

As a preferred embodiment of the invention, the iron core assembly comprises an i-shaped plastic framework 1, an iron core 4 is coaxially arranged in the axis of the i-shaped plastic framework 1 in a penetrating manner, as preferred, the outer diameter of a spool of the i-shaped plastic framework is phi 4.3mm, the diameter of the iron core is phi 3.5mm, two ends of the iron core 4 respectively extend out of the i-shaped plastic framework 1, one end of the iron core is fixed on a hollow insulating cover 2, the other end of the iron core is attracted with an armature 6, an enameled wire is wound on the periphery of the i-shaped plastic framework 1 and forms a hollow cylinder 3 structure, the preferred hollow cylinder has a height of about 14.4mm and a diameter of about phi 8.5mm, one end of the i-shaped plastic framework 1 extends out of an opening and is provided with a first clamping portion 18, one end of the hollow insulating cover 2, which is far away from the opening, is provided with a second clamping portion, and the connecting portion is provided with a clamping groove 19 for detachably connecting the first clamping portion 18 and the second clamping portion respectively; one end of the I-shaped plastic framework 1 extends out of the opening and is provided with a first clamping portion 18, one end, far away from the opening, of the hollow insulating cover 2 is provided with a second clamping portion, and the connecting portion is provided with clamping grooves 19 which are respectively detachably connected with the first clamping portion 18 and the second clamping portion, namely, the hollow insulating cover 2 is detachably connected with the bottom plate, the I-shaped plastic framework is detachably connected with the bottom plate, and the firmness that the whole driving mechanism can be connected with the bottom plate is guaranteed. Preferably, the second joint portion is equipped with two sets ofly to the supporting sleeve has draw-in groove 19 of setting on connecting portion respectively, and two sets of draw-in grooves 19 and two second joint portions are located respectively and set up both sides around base 10 on the direction of perpendicular to 4 axes of iron core, and then form triangular supports with first joint portion 18, guarantee the fastness that actuating mechanism and load mechanism are connected.

The yoke iron 5 is arranged between the enameled wire and the hollow insulating cover 2, the yoke iron 5 extends along the axial direction of the iron core 4, one end of the yoke iron 5 is riveted on the end part of the iron core 4 fixed on the hollow insulating cover 2, the other end of the yoke iron 5 is supported on the armature iron 6, the yoke iron 5 and the armature iron 6 form a closed magnetic circuit, magnetic lines of force generated by the electromagnetic coil of the iron core 4 are closed inside, the magnetic energy is fully utilized, and the efficiency of the electromagnet is highest. Preferably, the cross section of the yoke 5 is L-shaped to facilitate connection between the end of the iron core 4 and the armature 6, a limiting portion 20 for fixing the yoke 5 is arranged on the inner side of the hollow insulating cover 2, preferably, the limiting portion 20 is of a groove structure, and a protrusion embedded into the groove structure is arranged on the yoke 5. The iron core 4, the yoke iron 5 and the armature iron 6 are all made of electrician pure iron by quenching and electroplating.

Furthermore, the elastic hook 7 is connected between the yoke iron 5 and the armature iron 6, one end of the armature iron 6 is lapped on the yoke iron 5, the other end of the armature iron 6 is hinged on the pushing clamp 8 and is separated from the iron core 4 after returning along with the elastic hook 7, namely, one end of the armature iron 6 is lapped on the yoke iron 5 and is used as a pivot of the swing of the armature iron 6, the whole armature iron 6 is used as a swing structure, namely, the whole armature iron 6 is used as a lever to increase the moment, and the effectiveness of attracting or bouncing off the armature iron 6 is ensured.

Furthermore, be equipped with the terminal pin 24 to the enameled wire circular telegram in pairs on the first joint portion 18, set up the spread groove that supplies terminal pin 24 to stretch out on the connecting portion. The terminal pin 24 is used for enabling the wound enameled wire to be capable of inputting and outputting current to form a loop, so that the enameled wire is electrified, the iron core 4 generates magnetic force, and the armature 6 is attracted.

And, be equipped with the first mounting groove that is used for installing movable spring 11 on the load portion, first mounting groove department is equipped with movable spring terminal 13 that is connected with movable spring 11, is equipped with the first tang that stretches out the load portion on movable spring terminal 13, sets up separately through movable spring 11 and movable spring terminal 13, guarantees its flexible characteristics through movable spring 11 to be connected with NC terminal 15 and NO terminal 16 respectively, accomplishes the route through movable spring terminal 13 and communicates.

Wherein, be equipped with second mounting groove 12 and the third mounting groove that is used for demountable installation NC terminal 15 and NO terminal 16 respectively in the load portion, and NC terminal 15 and NO terminal 16 all are equipped with the second of stretching out the load portion and participate in, and movable spring terminal 13 can be dismantled with first mounting groove and be connected to realize dismantling of each terminal and load portion and be connected, so the load subassembly is equipped with the multiunit, and a set of load subassembly in the multiunit is connected with base 10. That is, there are multiple sets of load components, and the multiple sets of load components are of different models, in this embodiment, for the relays of different models, the same driving mechanism is used, and only different load components need to be replaced, that is, further, by detachable connection, only the NC terminal 15, the NO terminal 16, and the movable spring terminal 13 of the load component part need to be replaced.

In the manufacturing process, as a specific implementation mode, for a 1P type, the distance between second pins is 3.5mm, the second pins connected with an NO terminal, an NC terminal and a movable spring terminal (a common end) are all single pins, contacts capable of conducting after contact are arranged on the NO terminal, the NC terminal and the movable spring terminal, the diameter of each contact is 3.5mm, the load current is about 15A, and the base has NO interlayer insulation structure; for the 2P type, the distance between the second pins is 5.0mm, the second pins connected with the NO terminal, the NC terminal and the movable spring terminal (common end) are independent double pins, the diameter of a contact is 3.0mm, the load current is about 12A, and the base has an interlayer insulation structure; for the T type, the distance between the second pins is 5.0mm, the second pins connected with the NC terminal and the movable spring terminal (common end) are communicated with two pins, the diameter of a contact is 4.0mm, the load current is about 25A, and the base has no interlayer insulation structure. Preferably, the thicknesses of the NO terminal, the NC terminal and the movable spring terminal are all 0.5mm, and the thickness of the movable spring piece is 0.15mm.

Furthermore, a plurality of protrusions extending along the axial direction of the iron core 4 are arranged on the push clamp 8, and openings corresponding to the protrusions in detachable insertion are arranged on the movable spring piece 11 along two sides perpendicular to the axial direction of the iron core 4 to complete quick connection or separation of the push clamp 8 and the movable spring piece 11.

Preferably, a sliding groove 22 and a sliding block which are in sliding fit are arranged between the push card 8 and the hollow insulating cover 2, and the sliding groove 22 and the sliding block both extend along the axial direction of the iron core 4. An opening 21 is formed in the push card 8, sliding grooves 22 are formed in the hollow insulating cover 2 along two sides of the opening 21 in the direction perpendicular to the axis of the iron core 4, a connecting port 23 is formed in one side, close to the armature 6, of the push card 8, and the connecting port 23 is connected with the armature 6.

Furthermore, the bottom plate is matched with a shell 9 which is detachably connected with the bottom plate, and the shell 9 is covered around the driving mechanism and the loading mechanism. The housing 9 is of a universal type and does not need to be replaced.

Further, in this embodiment, the manufacturing process of the driving mechanism is as follows:

entering a PIN: the terminal pin 24 is preassembled with the I-shaped plastic framework 1, and the part of the terminal pin 24 is embedded into the I-shaped plastic framework 1 for fixing;

winding: the initial end of the enameled wire is wound at the root of the terminal pin 24 at one side, embedded in a wire groove reserved at one side of the I-shaped plastic framework 1, led out to the upper end of the upright post of the I-shaped plastic framework 1 through the wire groove at one side, and wound on the upright post of the I-shaped plastic framework 1 in the same direction; the tail end of the enameled wire is led into the root of the terminal pin 24 on the other side from the wire groove on the other side and wound in the same way to form a coil semi-finished product

Soldering: the enameled wire wound at the root of the terminal pin 24 melts the enameled film in a tin soldering mode, and the enameled wire and the terminal pin 24 are fixed to form a conductive loop; after the impedance of the coil is tested to be qualified, the coil is manufactured

Riveting the iron core 4: an iron core 4 penetrates through the middle of the I-shaped plastic framework 1; the yoke iron 5 is arranged in parallel with the iron core 4, and the tail end of the iron core 4 penetrates into a bottom hole of the yoke iron 5; the assembled parts are put into a die to be riveted, so that the tail end of the iron core 4 is expanded to be tightly matched with the yoke iron 5 to form a coil component

Assembling a magnetic circuit: the upper end of the L-shaped hook is provided with two symmetrical round holes which are matched with two small upright posts on the plane of the armature 6, and the L-shaped hook is stamped together by a die and is completely fixed to form an armature 6 component; the bottom of the hook is also provided with two symmetrical round holes which are matched with two small upright posts on the vertical surface of the yoke iron 5, and the armature 6 component is connected with the coil component to form a magnetic circuit component

Assembling a driving mechanism: the rectangular notch at the tail part of the push clamp 8 is matched with the head part of the armature 6, the armature 6 is vertically inserted into the notch, is protruded by a square block in the notch and is matched and fixed with a square hole at the head part of the armature 6, the push clamp 8 is connected with the magnetic circuit component, the magnetic circuit component is installed in the hollow insulating cover 2, and the driving mechanism is assembled.

In the prior art, a relay is generally based on a base 10, and all parts are sequentially arranged in the base 10, so that multiple sets of parts are required for various models. The present case is a modular structure, based on the driving mechanism, and other different parts are installed in the base 10 and assembled with the driving module. The advantages are that the parts of the driving module are uniform in size, and the production of the relay in the prior art can only be performed in a production line, the rings are buckled, the maneuverability and the flexibility are lacked, and the parts need to be replaced from beginning to end during model replacement production.

The adaptation according to the actual needs is within the scope of the invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. A modular relay structure with high part universality and strong compatibility is characterized by comprising a driving mechanism and a load mechanism which can be connected with the driving mechanism in a replaceable manner;

the driving mechanism comprises a hollow insulating cover and an iron core assembly arranged on the inner side of the hollow insulating cover, wherein an opening for extending one end of the iron core assembly is formed in the hollow insulating cover, an armature attracted with the iron core assembly is matched and sleeved at the end part of the iron core assembly extending out of the opening, the iron core assembly is connected with an elastic hook for driving the armature to be axially sprung open along the iron core assembly, a pushing clamp is arranged on the side wall of the hollow insulating cover in a sliding mode along the axial direction of the iron core assembly, one end of the pushing clamp is connected with the armature, and the other end of the pushing clamp extends out of the hollow insulating cover;

2. The modular relay structure of claim 1, wherein the iron core assembly comprises an i-shaped plastic frame, an iron core coaxially penetrates through the axis of the i-shaped plastic frame, two ends of the iron core respectively extend out of the i-shaped plastic frame, one end of the iron core is fixed on the hollow insulating cover, the other end of the iron core is attracted with the armature, an enameled wire is wound on the periphery of the i-shaped plastic frame, one end of the i-shaped plastic frame extends out of the opening and is provided with a first clamping portion, one end of the hollow insulating cover, which is far away from the opening, is provided with a second clamping portion, and clamping grooves which are respectively detachably connected with the first clamping portion and the second clamping portion are formed in the connecting portion.

3. The modular relay structure with high part universality and high compatibility according to claim 2, characterized in that a yoke is arranged between the enameled wire and the hollow insulating cover, the yoke extends along the axial direction of the iron core, one end of the yoke is riveted on the end part of the iron core fixed on the hollow insulating cover, and the other end of the yoke is supported on the armature.

4. The modular relay structure of claim 3, wherein the elastic hook is connected between the yoke and the armature, one end of the armature is overlapped on the yoke, and the other end is hinged on the pushing clamp and separated from the iron core after the elastic hook returns.

5. The modular relay structure with high part universality and strong compatibility according to any one of claims 2 to 4, characterized in that lead pins for electrifying the enameled wire are arranged on the first clamping parts in pairs, and connecting grooves for the lead pins to extend out are arranged on the connecting parts.

6. The modular relay structure of claim 5, wherein a first mounting groove for mounting the movable spring is formed on the load portion, a movable spring terminal connected to the movable spring is disposed at the first mounting groove, and a first pin extending out of the load portion is disposed on the movable spring terminal.

7. The modular relay structure of claim 6, wherein the load part has a second mounting groove and a third mounting groove for detachably mounting the NC terminal and the NO terminal, respectively, and the NC terminal and the NO terminal have a second pin extending out of the load part, and the movable spring terminal is detachably connected to the first mounting groove.

8. The modular relay structure of claim 7, wherein the pushing clip has a plurality of protrusions extending along the axial direction of the core, and the movable spring has openings corresponding to the protrusions and detachably engaged with the protrusions along two sides perpendicular to the axial direction of the core.

9. The modular relay structure with high part universality and high compatibility according to claim 8, wherein a sliding groove and a sliding block which are in sliding fit are arranged between the pushing card and the hollow insulating cover, and both the sliding groove and the sliding block extend along the axial direction of the iron core.

10. The modular relay structure of claim 9, wherein the base plate is configured with a housing removably attachable thereto, the housing covering the drive mechanism and the load mechanism.