Compact electromagnet module

Abstract

A compact electromagnet module comprises a mounting base, a support arranged on the mounting base, a push rod rotationally arranged on the support, an elastic piece connected with the push rod, a static iron core, a coil and a movable iron core, wherein the static iron core, the coil and the movable iron core are arranged between the mounting base and the support. The support comprises two side plates which are oppositely arranged and two inward folding arms which are arranged corresponding to the two side plates respectively, the inward folding arms are connected with the corresponding side plates through bending parts, and the distance between the two inward folding arms is smaller than the distance between the two side plates; the push rod is provided with two connecting structures corresponding to the two inward folding arms respectively, each connecting structure comprises a limiting groove, the corresponding inward folding arms are sleeved with the limiting grooves of the two connecting structures respectively, the limiting grooves of the two connecting structures are rotationally connected with the corresponding inward folding arms through pivots, and the distance between the two connecting structures of the push rod can be reduced. The compact electromagnet module can improve utilization of space inside the support, prevents the push rod from being located outside the support and connected with the side plate, and accordingly avoids increasing the size of the compact electromagnet module.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low-voltage apparatus, concretely relates to a compact electromagnet module. BACKGROUND

[0002] The electromagnet is composed of a coil, a moving iron core, a static iron core and a mounting seat, generates a magnetic field through electric current, drives mechanical movement, is widely used in large shell frame modular control and protection switches, can realize functions such as fast breaking, remote control and fault protection, and improves the reliability and safety of the system.

[0003] However, in order to ensure the reliability and structural strength of the push rod connection, the push rod needs to be sleeved on the support, and the push rod is limited by the support while being reliably connected, which leads to the fact that the volume of the push rod and the support is too large, not only increases the space occupation of the electromagnet, but also increases the weight of the electromagnet, and affects the system performance and reliability. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming at least one defect of prior art, and provides a compact electromagnet module.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A compact electromagnet module, comprising a mounting seat, a support arranged on the mounting seat, a push rod rotatably arranged on the support, an elastic member connected with the push rod, and a static iron core, a coil and a moving iron core arranged between the mounting seat and the support; the moving iron core is arranged in a straight line and coupled with the push rod, the coil generates a magnetic field after being electrified, drives the moving iron core to move towards the static iron core against the resistance of the elastic member, and drives the push rod to rotate through the moving iron core; after the coil is de-energized, the elastic member drives the push rod and the moving iron core to reset;

[0007] The support comprises two side plates arranged oppositely, and two inner folding arms arranged corresponding to the two side plates, the inner folding arms are connected with the corresponding side plates through bending parts, and the distance between the two inner folding arms is less than the distance between the two side plates.

[0008] The push rod is provided with two connection structures corresponding to the two inner folding arms respectively, the connection structure comprises a limiting groove, and the limiting grooves of the two connection structures are sleeved on the corresponding inner folding arms and are rotatably connected with the corresponding inner folding arms through a pivot.

[0009] Preferably, the support is inverted U-shaped structure and is inverted on the mounting seat, the support comprises a top plate connecting the two side plates, the side plates are provided with notches on one side of the top plate, the two inner folding arms are arranged corresponding to the notches of the two side plates respectively, and the inner folding arms are folded inward from the side plates.

[0010] Preferably, the push rod comprises two swing parts coupled with the moving iron core, two output parts connected with the two swing parts respectively, and a support part connected between the two swing parts, the moving iron core is located at least partially between the two swing parts, and the push rod is driven to rotate by the swing parts.

[0011] Preferably, the outer side of each of the two swing parts is provided with a connecting part, the connecting part is connected with the corresponding swing part through a limiting part, and a U-shaped limiting groove is formed between the corresponding swing part, the limiting part and the connecting part, and the pivot is connected between the swing part and the connecting part.

[0012] Preferably, the swing part is provided with a sliding groove, the moving iron core is provided with a driving shaft inserted into the sliding groove and slidingly fitted, the moving iron core is pushed by the driving shaft to push the side wall of the sliding groove when moving, and the push rod is driven to rotate; when the push rod rotates, the driving shaft is pushed by the side wall of the sliding groove to reset the moving iron core.

[0013] Preferably, the push plate is further provided with a driving part extending to the outside of the support, and the moving iron core can drive the push plate to move linearly.

[0014] Preferably, the push plate is arranged at the two ends of the moving iron core opposite to the push rod.

[0015] Preferably, the connecting part of the two swing parts and the support part is provided with two support columns, the support columns are provided with protruding spring parts, the spring parts of the two support columns are connected with two elastic members respectively, and the distance between the two support columns is smaller than the distance between the two connecting parts.

[0016] Preferably, the mounting seat is provided with a positioning rod on the outer side away from the support, the two elastic members are connected with the positioning rod through the support and the mounting seat respectively, the mounting seat is provided with two positioning grooves corresponding to the two ends of the positioning rod respectively, and the two ends of the positioning rod are arranged in the corresponding positioning grooves respectively.

[0017] Preferably, the two output parts are respectively provided with a first support plate, a second support plate and a third support plate, the second support plate is arranged between the first support plate and the third support plate, the first support plates of the two output parts are connected with the support part respectively, and the first support plates of the two output parts are arranged at intervals, the second support plate is connected with the side surface of the support column, and the extension line of the second support plate passes through the axis of the support column, the third support plate is connected with the outer side surface of the support column away from the other support column, the connecting part is arranged at intervals with the support column, and the two are connected through a fourth support plate, one end of the fourth support plate is connected with the connecting part at an angle, and the other end is connected with the support part and the third support plate respectively.

[0018] Preferably, the inner folding arm is provided with a reinforcing member, and the reinforcing member is provided with a mounting groove, and the pivot is rotatably arranged in the mounting groove; the reinforcing member comprises two spaced reinforcing plates and a reinforcing portion connecting the two reinforcing plates, the inner folding arm is provided with a second mounting groove corresponding to the reinforcing portion, and the reinforcing portion can be inserted into the second mounting groove while the two reinforcing plates are respectively sleeved on the opposite sides of the inner folding arm.

[0019] Preferably, the distance from the inner folding arm to the corresponding side plate is greater than 1 / 2 of the thickness of the connecting portion.

[0020] Preferably, the coil comprises a conductive winding wound on a coil framework, the coil framework is provided with two guide plates arranged oppositely, the moving iron core is arranged between the two guide plates, the two guide plates are respectively provided with guide grooves, and the driving shaft on the moving iron core is inserted into the guide grooves for sliding fit.

[0021] Preferably, the mounting seat is provided with two first buckles and two second buckles corresponding to the two side plates of the support respectively, the side plates are respectively provided with a first clamping groove corresponding to the first buckle and a second clamping groove corresponding to the second buckle, the mounting seat is clamped and matched with the first clamping groove and the second clamping groove of the side plates of the support through the first buckle and the second buckle, the side plates are provided with an insertion plate between the first clamping groove and the second clamping groove, and the mounting seat is provided with an insertion groove for limiting fit of the insertion plate.

[0022] Preferably, the auxiliary contact module is further included, and the moving iron core can drive the push plate to move linearly to trigger the auxiliary contact module.

[0023] The compact electromagnet module of the embodiment, the push rod is sleeved on the inner folding arm through the connecting structure, which can directly limit the connecting structure by the edge or protrusion of the inner folding arm to limit the rotation angle of the push rod, without the need for additional limiting parts, so as to simplify the design and reduce the cost, the distance between the two inner folding arms is less than the distance between the two side plates, which can reduce the distance between the two connecting structures of the push rod, improve the utilization of the inner space of the support, avoid the push rod being located outside the support and connected with the side plate, thereby avoiding increasing the volume of the compact electromagnet module, and has the characteristics of compact structure and small volume.

[0024] In addition, the connecting structure adopts a limiting groove, which not only limits the inner folding arm through the limiting portion at the bottom of the limiting groove to limit the rotation angle of the push rod, but also wraps the inner folding arm, so that the stress distribution on both sides of the inner folding arm is more symmetrical, deformation or deviation caused by unilateral stress is prevented, unilateral wear of the pivot is reduced, and the service life is prolonged.

[0025] In addition, the compact electromagnet module is also provided with a push plate, the push plate has a driving part extending to the outside of the support, the moving iron core can drive the push plate to move linearly, and the push plate and the push rod can simultaneously output torque and linear thrust to provide two schemes for driving the switch to be opened.

[0026] In addition, the inner folding arm is connected with the pivot of the push rod through the thickened reinforcing piece, the strength of the inner folding arm can be improved, the inner folding arm can be driven to contact the pivot through the reinforcing piece, and direct abrasion of the inner folding arm is avoided. By reducing the distance between the two supporting columns, the elastic piece is prevented from being arranged to the outside of the support, the structure is more compact, and the volume is smaller. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the compact electromagnet module of the utility model;

[0028] Figure 2 is an exploded view of the compact electromagnet module of the utility model;

[0029] Figure 3 is a side view of the compact electromagnet module of the utility model;

[0030] Figure 4 is a structural schematic view of the compact electromagnet module of the utility model after the support is hidden;

[0031] Figure 5 is a partial enlarged view of the utility model Figure 4 ;

[0032] Figure 6 is a structural schematic view of the support of the utility model;

[0033] Figure 7 is a structural schematic view of the push rod of the utility model;

[0034] In the drawing:

[0035] 1 mounting seat 63 swing part

[0036] 2 static iron core 64 limiting part

[0037] 3 coil 65 pivot

[0038] 4 support 66 sliding groove

[0039] 5 moving iron core 67 spring part

[0040] 6 push rod 68 supporting column

[0041] 7 elastic piece 69 output part

[0042] 8 reinforcing piece 71 positioning rod

[0043] 11 positioning groove 80 mounting groove

[0044] 31 guide plate 81 reinforcing plate

[0045] 32 guide groove 82 reinforcing portion

[0046] 41 side plate 111 first clasp

[0047] 42 inner folding arm 411 first clasp groove

[0048] 43 top plate 412 second clasp groove

[0049] 44 notch 413 insertion plate

[0050] 45 bending portion 691 first support plate

[0051] 51 drive shaft 692 second support plate

[0052] 52 push plate 693 third support plate

[0053] 53 drive portion 694 fourth support plate

[0054] 61 connecting portion

[0055] 62 supporting portion DETAILED DESCRIPTION

[0056] The following embodiments, given in conjunction with the accompanying drawings, further illustrate the specific embodiments of the compact electromagnet module of the present application. The compact electromagnet module of the present application is not limited to the following embodiments.

[0057] As Figures 1-2As shown, the compact electromagnet module of the embodiment comprises a mounting base 1, a bracket 4 arranged on the mounting base 1, and a static core 2 and a coil 3 arranged between the mounting base 1 and the bracket 4, the bracket 4 is provided with a rotatable push rod 6, an elastic member 7 is connected with the push rod 6, the moving core 5 is coupled with the push rod 6, the static core 2 is arranged opposite to the moving core 5, the coil 3 is located between the static core 2 and the moving core 5, the moving core 5 is a movable magnetic conductor and can move linearly towards the static core 2 or away from the static core 2 under the action of magnetic force, the coil 3 comprises a conductive winding wound on a coil skeleton, and a magnetic field is generated after the coil 3 is electrified, so that a closed magnetic circuit is formed between the static core 2 and the moving core 5, the moving core 5 is attracted to move towards the static core 2 against the resistance of the elastic member 7, the moving core 5 moves to push the push rod 6 to rotate, the linear motion of the moving core 5 is converted into rotary motion through the push rod 6, the push rod 6 is used to trigger a switch to be turned off or other actions, the magnetic field disappears after the conductive winding is de-energized, the elastic member 7 contracts and pulls the moving core 5 back to the original position, and the push rod 6 reversely rotates to restore the initial state. In the embodiment, the elastic member 7 is a tension spring, and the elastic member 7 can also be a torsion spring, a leaf spring or other elastic members, and the elastic member 7 can be connected between the push rod 6 and the mounting base 1 or between the push rod 6 and the bracket 4.

[0058] An improved point of the embodiment is that, as shown, Figures 2-3 The bracket 4 comprises two opposite side plates 41 and two inner folding arms 42 arranged corresponding to the two side plates 41, the two inner folding arms 42 are located between the two side plates 41, the inner folding arms 42 are respectively folded and connected with the corresponding side plates 41,

[0059] The push rod 6 is provided with two connection structures corresponding to the two inner folding arms 42 respectively, the connection structures comprise limiting grooves, the limiting grooves of the two connection structures are respectively sleeved on the corresponding inner folding arms 42 and are rotationally connected with the corresponding inner folding arms 42 through pivots 65.

[0060] In the compact electromagnet module of the embodiment, the push rod 6 is sleeved on the inner folding arms 42 through the connection structures, the edge or protrusion of the inner folding arms 42 can be directly used to limit the connection structures to limit the rotation angle of the push rod 6, without the need for additional limiting parts, so that the design can be simplified and the cost can be reduced, the distance between the two inner folding arms 42 is less than the distance between the two side plates 41, the distance between the two connection structures of the push rod 6 can be reduced, the utilization of the inner space of the bracket 4 can be improved, the push rod 6 can be located on the inner side of the bracket 4 and connected with the side plates 41, so that the volume of the compact electromagnet module can be avoided to be increased, and the compact structure and small volume are achieved.

[0061] As shown, Figures 1-3As shown, the push rod 6 includes two swing parts 63 coupled with the moving iron core 5 respectively, two output parts 69 connected with the two swing parts 63 respectively, and a support part connected between the two swing parts 63, the moving iron core 5 is at least partially located between the two swing parts 63, the push rod 6 is driven to rotate through the swing part 63, and the output part 69 is used for outputting a trigger action, triggering a switch to be turned off, etc. The outer side of the two swing parts 63 is respectively provided with a connecting part, the connecting part and the corresponding swing part 63 are connected through a limiting part 64, and a U-shaped limiting groove is formed between the corresponding swing part 63, the limiting part 64 and the connecting part 61, the limiting groove is sleeved on the corresponding inner folding arm 42 as the connecting structure, and the pivot 65 is connected between the swing part 63 and the connecting part 61. The connecting structure adopts the U-shaped limiting groove, which not only limits the inner folding arm 42 through the limiting part 64 at the bottom of the limiting groove, plays a role of limiting the rotation angle of the push rod 6, and the U-shaped limiting groove is wrapped on the inner folding arm 42, so that the stress distribution of the two sides of the inner folding arm 42 is more symmetrical, the deformation or deviation caused by unilateral stress is prevented, the unilateral wear of the pivot 65 is reduced, and the service life is prolonged.

[0062] As shown in the figure, Figure 2 The bracket 4 is inverted U-shaped structure and is inverted on the mounting seat 1, the bracket 4 includes two side plates 41 arranged oppositely, and a top plate 43 connected between the two side plates 41, the two side plates 41 are respectively provided with L-shaped notches 44 on one side of the top plate 43, the two inner folding arms 42 are respectively arranged corresponding to the notches 44 of the side plates 41, the inner folding arms 42 are formed by inwardly bending the side plates 41, the inner folding arms 42 are connected with the side edges corresponding to the notches 44 through the obliquely arranged bending parts 45, the distance between the inner folding arm 42 and the corresponding side plate 41 is greater than 1 / 2 of the thickness of the connecting part 61, the outer side surface of the connecting part 61 can be flush with the outer side surface of the side plate 41, can be located on the inner side of the side plate 41, or slightly protrudes outward from the surface of the side plate 41.

[0063] Further, as shown in the figure, Figure 2-4 The connecting parts 61 of the two swing parts 63 and the support part 62 are respectively provided with support columns 68, the support columns 68 are provided with spring parts 67 protruding in the axial direction, the two spring parts 67 are respectively connected with the two elastic members 7, and the distance between the two support columns 68 is smaller than the distance between the two connecting parts 61. By reducing the distance between the two support columns 68, the elastic member 7 is prevented from being arranged to the outer side of the bracket 4, so that the structure is more compact and the volume is smaller.

[0064] Further, the mounting seat 1 is provided with a positioning rod 71 on the outer side away from the support 4, the two elastic members 7 are connected with the positioning rod 71 through the support 4 and the mounting seat 1 respectively, the mounting seat 1 is provided with two positioning grooves 11 corresponding to the two ends of the positioning rod 71 respectively, the two ends of the positioning rod 71 are respectively inserted into the corresponding positioning grooves 11 for limiting, and the detachable positioning rod 71 can reduce the difficulty of assembling the elastic member 7 and facilitate subsequent replacement of the elastic member 7.

[0065] Further, the two output portions 69 are respectively provided with a first support plate 691, a second support plate 692 and a third support plate 693, the second support plate 692 is arranged between the first support plate 691 and the third support plate 693, the first support plates 691 of the two output portions 69 are respectively connected with the support portion 62, and the first support plates 691 of the two output portions 69 are arranged at intervals, the second support plate 692 is connected with the side surface of the support column 68, and the extension line of the second support plate 692 passes through the axis of the support column 68, the third support plate 693 is connected with the outer side surface of the support column 68 away from the other support column 68, the connecting portion 61 is arranged at intervals with the support column 68, and the two are connected through a fourth support plate 694, one end of the fourth support plate 694 is obliquely connected with the connecting portion 61, and the other end is respectively connected with the support portion and the third support plate 693, so that the overall structural strength of the push rod 6 can be significantly improved.

[0066] As shown in Figure 3-5 The inner folding arm 42 is provided with a reinforcing member 8, the thickness of the reinforcing member 8 is greater than the thickness of the inner folding arm 42, the reinforcing member 8 is provided with a U-shaped mounting groove 80, the pivot 65 is inserted into the mounting groove 80 and arranged in the mounting groove 80 to serve as the rotation axis of the push rod 6. By reasonably setting the thickness of the inner folding arm 42, the overall thickness and strength of the support 4 can be improved, and the inner folding arm 42 has sufficient strength after being bent to install the reinforcing member 8. The inner folding arm 42 is connected with the pivot 65 of the push rod 6 through the thickened reinforcing member 8, which can not only improve the strength of the inner folding arm 42, but also drive the inner folding arm 42 to contact the pivot 65 through the reinforcing member 8, avoiding direct wear of the inner folding arm 42.

[0067] Specifically, the reinforcing member 8 includes two reinforcing plates 81 arranged at intervals, and a reinforcing portion 82 connected between the middle portions of the two reinforcing plates 81, the reinforcing portion 82 is provided with the mounting groove 80, the inner folding arm 42 is provided with a second mounting groove (not shown in the figure) corresponding to the reinforcing portion 82, the reinforcing portion 82 can be inserted into the second mounting groove, and at the same time, the two reinforcing plates 81 are respectively sleeved on the opposite sides of the inner folding arm 42, the reinforcing member 8 and the inner folding arm 42 can be connected by interference fit, adhesion or welding, or the reinforcing member 8 and the inner folding arm 42 can be integrally formed to improve the overall structure and fatigue resistance. In addition, the reinforcing member 8 can also not be provided, and the pivot 65 of the push rod 6 can be directly connected with the inner folding arm 42. Preferably, the thickness of the reinforcing member 8 is greater than or equal to 1.3 times the thickness of the inner folding arm 42.

[0068] Further, the two swing portions 63 are respectively provided with sliding grooves 66, the moving iron core 5 is at least partially located between the two swing portions 63, the moving iron core 5 is provided with driving shafts 51 corresponding to the two swing portions 63 respectively, the driving shafts 51 are respectively inserted into the sliding grooves 66 for sliding fit, when the moving iron core 5 moves, the side walls of the sliding grooves 66 are pushed by the driving shafts 51, the push rod 6 is driven to rotate, when the elastic member 7 pulls the push rod 6 to reset, the push rod 6 pushes the driving shafts 51 through the side walls of the sliding grooves 66, the moving iron core 5 is driven to reset, and the conversion between linear motion and rotary motion is realized. Preferably, the sliding groove 66 is U-shaped, the opening of the sliding groove 66 is arranged on the end face of the swing portion 63 away from the supporting portion 62, during assembly, the sliding groove 66 is first aligned with the driving shaft 51 of the moving iron core 5, and then the two swing portions 63 are sleeved on the moving iron core 5, which has the characteristics of convenient assembly.

[0069] Further, the coil former is provided with two guide plates 31 arranged oppositely, the moving iron core 5 is arranged between the two guide plates 31, the two guide plates 31 are respectively provided with guide grooves 32, and the driving shafts 51 on the moving iron core 5 are inserted into the guide grooves 32 for sliding fit. Not only can it play a guiding role for the moving iron core 5, improve the motion accuracy and prolong the mechanical life, but also the moving iron core 5 can be assembled to the coil former first, so that the moving iron core 5 and the coil 3 are assembled as a whole, and subsequent assembly is facilitated. Preferably, bearings or shaft sleeves can be arranged on the outer sides of the driving shafts 51, which can reduce friction and prolong the mechanical life.

[0070] Further, it further includes a push plate 52 connected with the moving iron core 5, the push plate 52 is arranged at the two ends of the moving iron core 5 opposite to the push rod, the push plate 52 has a driving portion 53 extending to the outside of the bracket 4, and the moving iron core 5 can drive the push plate 52 to move linearly. It can simultaneously output torque and linear thrust through the push rod 6 and the push plate 52, provide two driving switch opening schemes, and also can select one of them according to needs, which can be flexibly applied to different occasions.

[0071] Further, the compact electromagnet module further comprises an auxiliary contact module (not shown in the figure), which is fixedly installed outside the support 4, the moving iron core 5 can drive the push plate 52 to move linearly to trigger the auxiliary contact module to output a signal, and the working state of the electromagnet can be judged by triggering the auxiliary contact module to output the signal, or the auxiliary contact module is connected in the power supply circuit of the coil 3, so that after the moving iron core 5 triggers the auxiliary contact module through the push plate 52, the power supply circuit of the coil 3 is disconnected, and the coil 3 is protected. The trigger auxiliary contact can be a micro switch or the like. In other embodiments, the push plate 52 can also be used to drive other parts, or as a second output end, without driving the auxiliary contact module.

[0072] As shown in Figures 1-2 The static iron core 2, the coil 3 and the support 4 are fixedly arranged on the mounting seat 1, the static iron core 2 is connected with the mounting seat 1 through a buffer elastic member, the coil 3 is arranged between the static iron core 2 and the moving iron core 5, the mounting seat 1 is provided with two first buckles 111 and two second buckles corresponding to the two side plates 41 of the support 4 respectively, only one side of the first buckle 111 and the second buckle are shown in the figure, the side plate 41 is respectively provided with a first clamping groove 411 corresponding to the first buckle 111 and a second clamping groove 412 corresponding to the second buckle, the side plate 41 is provided with an insertion plate 413 between the first clamping groove 411 and the second clamping groove 412, the mounting seat 1 is provided with an insertion slot (not shown in the figure) for limiting the insertion plate 413, the insertion plate 413 is a metal boss integrally formed with the side plate 41, and the end of the insertion plate 413 is provided with a chamfer corresponding to the guide slope of the insertion slot. When assembling, the insertion plate 413 slides along the slope of the insertion slot until the first clamping groove 411 and the second clamping groove 412 of the side plate 41 are completely clamped with the first buckle 111 and the second buckle of the mounting seat 1 respectively, forming a three-point positioning, which can effectively improve the installation efficiency.

[0073] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in use, and are only for the convenience of description, and do not indicate that the device or element referred to must have a specific orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating relative importance.

[0074] The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and cannot be considered as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be considered as belonging to the protection scope of the utility model.

Claims

1. A compact electromagnet module, comprising a mounting base (1), a bracket (4) arranged on the mounting base (1), a push rod (6) arranged rotatably on the bracket (4), an elastic member (7) connected with the push rod (6), and a static core (2), a coil (3) and a moving core (5) arranged between the mounting base (1) and the bracket (4); the moving core (5) is arranged linearly movably and coupled with the push rod (6), the coil (3) generates a magnetic field after being energized, drives the moving core (5) to move to the static core (2) against the resistance of the elastic member (7), and drives the push rod (6) to rotate through the moving core (5); after the coil (3) is de-energized, the elastic member (7) drives the push rod (6) and the moving core (5) to reset; characterized in that: the bracket (4) comprises two side plates (41) arranged oppositely, and two inner folding arms (42) arranged respectively corresponding to the two side plates (41); the inner folding arms (42) are connected with the corresponding side plates (41) through bending parts (45), and the distance between the two inner folding arms (42) is smaller than the distance between the two side plates (41); the push rod (6) is provided with two connecting structures corresponding to the two inner folding arms (42) respectively, the connecting structure comprises a limiting groove, and the limiting grooves of the two connecting structures are respectively sleeved on the corresponding inner folding arms (42) and are rotatably connected with the corresponding inner folding arms (42) through a pivot (65).

2. The compact electromagnet module of claim 1, wherein: the bracket (4) is arranged in a U-shaped structure and is invertedly arranged on the mounting base (1); the bracket (4) comprises a top plate (43) connecting the two side plates (41); the side plates (41) are provided with notches (44) on one side of the top plate (43); the two inner folding arms (42) are arranged corresponding to the notches (44) of the two side plates (41) respectively; and the inner folding arms (42) are formed by inwardly folding the side plates (41).

3. The compact electromagnet module of claim 1, wherein: the push rod (6) comprises two swing parts (63) coupled with the moving core (5), two output parts (69) connected with the two swing parts (63) respectively, and a supporting part (62) connected between the two swing parts (63); the moving core (5) is located at least partially between the two swing parts (63) and drives the push rod (6) to rotate through the swing parts (63).

4. The compact electromagnet module of claim 3, wherein: the outer sides of the two swing parts (63) are respectively provided with connecting parts (61); the connecting parts (61) are connected with the corresponding swing parts (63) through limiting parts (64); and the limiting grooves in a U shape are formed between the corresponding swing parts (63), limiting parts (64) and connecting parts (61); and the pivot (65) is connected between the swing parts (63) and the connecting parts (61).

5. The compact electromagnet module of claim 3, wherein: the swing parts (63) are provided with sliding grooves (66); the moving core (5) is provided with a driving shaft (51) inserted into the sliding grooves (66) and slidingly fitted; when the moving core (5) moves, the driving shaft (51) pushes the side wall of the sliding groove (66) to drive the push rod (6) to rotate; when the push rod (6) rotates, the driving shaft (51) is pushed by the side wall of the sliding groove (66) to drive the moving core (5) to reset.

6. The compact electromagnet module of claim 1, wherein: The push plate (52) is connected with the moving iron core (5), and has a driving part (53) extending to the outside of the support (4), and the moving iron core (5) can drive the push plate (52) to move linearly.

7. The compact electromagnet module of claim 6, wherein: The push plate (52) is arranged opposite to the push rod (6) at two ends of the moving iron core (5).

8. The compact electromagnet module of claim 4, wherein: Two support columns (68) are arranged at the connection between the two swing parts (63) and the support part (62), the support columns (68) are provided with protruding spring parts (67), the spring parts (67) of the two support columns (68) are connected with the two elastic members (7) respectively, and the distance between the two support columns (68) is smaller than the distance between the two connection parts (61).

9. The compact electromagnet module of claim 8, wherein: The mounting seat (1) is provided with a positioning rod (71) on the outside away from the support (4), the two elastic members (7) are connected with the positioning rod (71) through the support (4) and the mounting seat (1) respectively, the mounting seat (1) is provided with two positioning grooves (11) corresponding to the two ends of the positioning rod (71) respectively, and the two ends of the positioning rod (71) are arranged in the corresponding positioning grooves (11) respectively.

10. The compact electromagnet module of claim 8, wherein: The two output parts (69) are respectively provided with first support plates (691), second support plates (692) and third support plates (693), the second support plates (692) are arranged between the first support plates (691) and the third support plates (693), the first support plates (691) of the two output parts (69) are connected with the support part (62) respectively, the first support plates (691) of the two output parts (69) are arranged at intervals, the second support plates (692) are connected with the side surfaces of the support columns (68), the extension lines of the second support plates (692) pass through the axes of the support columns (68), the third support plates (693) are connected with the side surfaces of the support columns (68) away from the other support columns (68), the connection parts (61) are arranged at intervals with the support columns (68), and the connection parts (61) and the support columns (68) are connected through fourth support plates (694), one end of the fourth support plate (694) is inclinedly connected with the connection part (61), and the other end is connected with the support part (62) and the third support plate (693) respectively.

11. The compact electromagnet module of claim 1, wherein: The reinforcing member (8) is arranged on the inner folding arm (42), and the mounting groove (80) is arranged on the reinforcing member (8), and the pivot (65) is rotatably arranged in the mounting groove (80); the reinforcing member (8) comprises two spaced reinforcing plates (81) and a reinforcing part (82) connecting the two reinforcing plates (81), the inner folding arm (42) is provided with a second mounting groove corresponding to the reinforcing part (82), and the reinforcing part (82) can be inserted into the second mounting groove, so that the two reinforcing plates (81) are sleeved on the opposite sides of the inner folding arm (42) respectively.

12. The compact electromagnet module of claim 4, wherein: The distance from the inner folding arm (42) to the corresponding side plate (41) is greater than 1 / 2 of the thickness of the connection part (61).

13. The compact electromagnet module of claim 5, wherein: The coil (3) comprises a conductive winding wound on a coil skeleton, the coil skeleton is provided with two guide plates (31) oppositely arranged, the moving iron core (5) is arranged between the two guide plates (31), the two guide plates (31) are respectively provided with guide grooves (32), and the driving shaft (51) on the moving iron core (5) is inserted into the guide grooves (32) and is in sliding fit.

14. The compact electromagnet module of claim 1, wherein: The mounting seat (1) is provided with two first buckles (111) and two second buckles corresponding to the two side plates (41) of the support (4) respectively, the side plates (41) are respectively provided with a first clamping groove (411) corresponding to the first buckle (111) and a second clamping groove (412) corresponding to the second buckle, the mounting seat (1) is in clamping fit with the first clamping groove (411) and the second clamping groove (412) of the side plates (41) of the support (4) through the first buckle (111) and the second buckle, the side plates (41) are provided with an insertion plate (413) between the first clamping groove (411) and the second clamping groove (412), and the mounting seat (1) is provided with an insertion groove for limiting fit of the insertion plate (413).

15. The compact electromagnet module of claim 6, wherein: The auxiliary contact module is further included, and the moving iron core (5) can drive the push plate (52) to move linearly to trigger the auxiliary contact module.

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