CN212392185U - Novel multifunctional alternating current contactor - Google Patents

Abstract

The utility model discloses a novel multi-functional ac contactor relates to the electrics field. This 95A novel multifunctional AC contactor, including AC contactor, AC contactor includes contact system, linking bridge system, arc extinguishing system, electromagnetic system, installation base, contact protector and independent binding post module, and contact system, electromagnetic system and contact protector set up at the top of installation base, and arc extinguishing system is connected with contact system is fixed, and linking bridge system sets up at the top of contact system, and independent binding post module quantity is two, and sets up the both sides at contact protector. The 95A novel multifunctional alternating current contactor has the advantages of small volume, modular design, multiple installation modes, high protection level, high electrical safety performance, strong expandability, various wiring types and novel overall appearance, and can be used for remotely connecting and disconnecting an AC-3 use type, a rated working voltage of 380V and a rated working current of 95A.

Description

Novel multifunctional alternating current contactor

Technical Field

The utility model relates to an electrics technical field specifically is a novel multi-functional ac contactor.

Background

With the increasing load density of power distribution systems and the miniaturization of power distribution cabinets, electrical components with small and large currents are required to meet these market demands.

At present, the AC contactor with the class of domestic AC-3 and the rated working current of 95A at the rated working voltage of 380V has the following defects: the volume is large, and the space utilization rate of the box body is low; the main circuit and the auxiliary circuit are designed on the same layer, the wiring arrangement of the circuits is unclear, the wiring design of the coil control circuit is arranged on the bottom layers of the main circuit and the auxiliary circuit, when the alternating current contactor is vertically installed and used, the wiring of a user is inconvenient, and the protection performance, the electrical safety performance and the expandability are poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses a novel multi-functional ac contactor to solve the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a novel multifunctional alternating current contactor comprises an alternating current contactor, wherein the alternating current contactor comprises a contact system, a connecting bracket system, an arc extinguishing system, an electromagnetic system, a mounting base, a contact protection device and an independent wiring terminal module;

the contact system, the electromagnetic system and the contact protection device are arranged at the top of the installation base, the arc extinguishing system is fixedly connected with the contact system, the connecting bracket system is arranged at the top of the contact system, the connecting bracket system, the arc extinguishing system and the electromagnetic system are all arranged inside the contact protection device, and the number of the independent terminal modules is two and is arranged on two sides of the contact protection device.

Preferably, the mounting base comprises a base, the upper surface of the base is provided with a mounting fixture block and a fixture block spring, the upper surface of the base is provided with a TH35mm standard clamping rail, a TH75mm standard clamping rail, a screw mounting hole and a mounting hole, a derived product fixing hole, a dovetail groove and an appearance cave shape, and the mounting hole is internally provided with a forming screw.

Preferably, the contact system comprises a first shell and a second shell, the first shell and the second shell are fixedly connected with the mounting hole through a screw, a static main contact is fixedly connected between the first shell and the second shell, the outer surfaces of the upper layers of the first shell and the second shell are respectively provided with a first expansion module fixing window, an expansion module fixing convex hull, a normally closed auxiliary contact fixing window, a normally open auxiliary contact fixing window, an expansion module hanging groove and an arc extinguishing device fixing window, the outer surfaces of the lower layers of the first shell and the second shell are respectively provided with a clamping groove, a first clamping hook, a second expansion module fixing window, a contact protection system fixing window and an expansion module clamping groove, three groups of static main contacts are respectively embedded in the lower layers of the first shell and the second shell, a group of static auxiliary contacts and a group of static normally closed auxiliary contacts are respectively embedded in the upper layers of the first shell and the second shell, and the normally closed auxiliary contact fixing window and the normally open auxiliary contact fixing window are respectively and fixedly connected with a static normally open auxiliary contact and a static normally closed auxiliary contact.

Preferably, electromagnetic system includes that direct action formula "E" type is from detaining folding and riveting silicon steel sheet moving iron, coil, reaction spring and "E" type is from detaining folding and riveting silicon steel sheet static iron, and "E" type is from detaining folding and riveting silicon steel sheet static iron joint is at the inboard cavity upper surface of base, direct action formula "E" type is from detaining folding and riveting silicon steel sheet moving iron, coil and reaction spring setting at the top of "E" type is from detaining folding and riveting silicon steel sheet static iron, "E" type is from detaining folding and riveting silicon steel sheet moving iron fixed connection in sheet spring's bottom.

Preferably, the linking bridge system includes main contact support, main contact support fixed connection is at the top of slice spring, the inside fixedly connected with main contact spring of main contact support, just the bottom fixedly connected with of main contact spring moves and closes main bridge shape contact, main contact support both sides set up extension module connection window, and the top is provided with and moves and closes supplementary bridge shape contact, installation cell type guide rail, supplementary contact support, first extension module and hangs interface and supplementary contact spring, and the bottom sets up protruding couple.

Preferably, the arc extinguishing system has auxiliary contact arc extinguishing system and main contact arc extinguishing system, auxiliary contact arc extinguishing system sets up in the upper end, main contact arc extinguishing system sets up the root at each looks main contact, main contact arc extinguishing system includes cavity and arc extinguishing member, the arc extinguishing member includes striking convex closure and "L" type striking angle, just arc extinguishing member upper end sets up "T" type structure, just "T" type structure articulates with first casing and second casing.

Preferably, the contact protection device comprises a transparent cover observation window, a top protection cover, an auxiliary protection cover, a main protection cover and a dust cover, wherein an expansion module fixing cavity is arranged on the left side of the auxiliary protection cover, a hanging hook is arranged at the bottom of the auxiliary protection cover, a module fixing window is arranged at the top of the auxiliary protection cover, a cave-shaped gallery column model, a quick plug-in type elastic-flat cushion wiring type auxiliary protection cover and a spring terminal clamping type auxiliary protection cover are arranged at the wiring position of the auxiliary protection cover, an auxiliary protection cover fixing window and a wiring terminal module fixing groove are arranged at the top of the main protection cover, a main circuit wiring terminal module fixing window and a wiring terminal module fixing window are respectively arranged on two end faces of the main protection cover, an expansion module adjusting window, a crescent moon-shaped gradually-disappearing face, a water-shaped model.

Preferably, the wiring terminal module comprises a wiring seat, a wiring frame, a bottom plate, a protective cover and an extended function wiring seat, wherein an extended module fixing structure, an extended module hanging groove and a counter bore fading surface are arranged at the top of the wiring seat, a first extended module fixing groove and a first cave type gallery column appearance type are arranged on the end surface, a second extended module hanging port is arranged at the bottom of the wiring seat, and a clamping convex hull and a lower clamping convex hull are arranged on the back surface of the wiring seat.

Preferably, extended function connection terminal and protection casing phase-match, set up fixed couple, second cave type corridor post outward appearance type, second extension module fixed slot and fixed boss on the extended function connection terminal, set up module fixed knot structure, third cave type corridor post outward appearance type, fixed convex closure, the fixed recess of extension module and the fixed fixture block of elasticity on the protection casing.

The utility model discloses a novel multi-functional ac contactor, its beneficial effect who possesses as follows:

1. the 95A novel multifunctional alternating current contactor has the advantages of small volume, modular design, multiple installation modes, high protection level, high electrical safety performance, strong expandability, various wiring types and novel overall appearance, and can remotely connect and disconnect the circuits from the rated working current to 95A when the AC-3 use class and the rated working voltage are 380V.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the ac contactor of the present invention;

fig. 3 is a schematic structural view of a contact system of an ac contactor according to the present invention;

fig. 4 is a schematic structural diagram of a contact system of an ac contactor according to the present invention;

FIG. 5 is a schematic structural view of the AC contactor connecting bracket system of the present invention;

fig. 6 is a schematic structural view of an arc extinguishing system of the ac contactor of the present invention;

FIG. 7 is a schematic view of the arc extinguishing member of the present invention;

fig. 8 is a schematic structural view of an electromagnetic system of the ac contactor of the present invention;

fig. 9 is a schematic structural view of an ac contactor mounting base according to the present invention;

FIG. 10 is a schematic view of the auxiliary protective cover of the AC contactor of the present invention;

fig. 11 is a schematic structural view of the main protective cover of the ac contactor of the present invention;

fig. 12 is a schematic structural view of a connection terminal of the ac contactor of the present invention;

fig. 13 is a schematic structural view of the ac contactor wire holder of the present invention;

fig. 14 is a schematic structural view of the ac contactor wire holder of the present invention;

fig. 15 is a schematic view of the extended function wire holder and the protective cover of the ac contactor of the present invention.

In the figure: 1. an AC contactor; 2. a contact system; 201. normally closing the auxiliary contact fixing window; 202. a normally open auxiliary contact fixed window; 203. a normally open auxiliary contact; 204. the first expansion module fixes the window; 205. the expansion module fixes the convex hull; 206. clamping grooves; 207. a stationary main contact; 208. the second expansion module fixes the window; 209. an expansion module clamping groove; 210. a contact protection system fixing window; 211. a first housing; 212. a stationary normally closed auxiliary contact; 213. the expansion module is hung in the slot; 214. a second housing; 215. a first clamping hook; 216. the arc extinguishing device fixes the window; 3. connecting the bracket system; 301. dynamically closing the auxiliary bridge contact; 302. an auxiliary contact holder; 303. a main contact holder; 304. a main bridge contact is movably combined; 305. the expansion module is connected with the window; 306. a main contact spring; 307. an auxiliary contact spring; 308. a first expansion module hanging interface; 309. a convex hook; 310. a groove-shaped guide rail; 4. an arc extinguishing system; 401. an auxiliary contact arc extinguishing system; 402. a main contact arc extinguishing system; 403. an arc extinguishing member; 404. arc striking convex hulls; 405. an L-shaped arc striking angle; 406. a "T" type structure; 5. an electromagnetic system; 501. a leaf spring; 502. e-shaped moving iron of the silicon steel sheet for self-clinching and folding riveting; 503. a coil; 504. e-shaped self-buckling laminated riveting silicon steel sheet static iron; 505. a counter-force spring; 6. installing a base; 601. a base; 602. a screw mounting hole; 603. TH75mm standard card rail; 604. a dovetail groove; 605. the appearance is of a cave shape; 606. mounting holes; 607. a fixture block spring; 608. mounting a clamping block; 609. TH35mm standard card rail; 610. deriving a product fixing hole; 611. forming a screw; 7. a contact protection device; 701. a top shield; 702. a transparent cover viewing window; 703. an auxiliary protective cover; 704. a main shield; 705. a dust cover; 706. the fast plug-in type elastic flat pad wiring type auxiliary protective cover; 707. the spring terminal is clamped with the auxiliary protective cover; 7031. modeling a cave-shaped gallery column; 7032. hanging a hook; 7033. an expansion module securing cavity; 7034. the module fixes the window; 7040. a second clamping hook; 7041. a wiring terminal module fixing groove; 7042. a main loop terminal module fixing window; 7043. a terminal module fixing window; 7044. the auxiliary protective cover fixes the window; 7045. the expansion module adjusts the window; 7046. the shape of the Chinese character 'shui'; 7047. the side-mounted expansion module is connected with the window; 7048. the crescent gradually disappears; 7049. an enterprise logo; 8. a terminal module; 801. a wire holder; 802. a wiring frame; 803. a base plate; 804. a protective cover; 805. a function-extended wire holder; 8010. an expansion module fixing structure; 8011. a counter bore gradually disappears; 8012. the expansion module is connected with the groove in a hanging mode; 8013. a first cave type gallery column appearance type; 8014. a first expansion module fixing slot; 8015. a second expansion module hanging interface; 8016. clamping the convex hull; 8017. downward clamping the convex hull; 8040. the expansion module fixing groove; 8041. the appearance type of a third cave type gallery column; 8042. fixing the convex hull; 8043. a module fixing structure; 8044. elastically fixing the clamping block; 8050. fixing the hook; 8051. the appearance type of a second cave type gallery column; 8052. a second expansion module fixing slot; 8053. and fixing the boss.

Detailed Description

The embodiment of the utility model discloses a novel multifunctional alternating current contactor, as shown in fig. 1-15, comprising an alternating current contactor 1, wherein the alternating current contactor 1 comprises a contact system 2, a connecting bracket system 3, an arc extinguishing system 4, an electromagnetic system 5, an installation base 6, a contact protection device 7 and an independent wiring terminal module 8;

the contact system 2, the electromagnetic system 5 and the contact protection device 7 are arranged at the top of the mounting base 6, the arc extinguishing system 4 is fixedly connected with the contact system 2, the connecting bracket system 3 is arranged at the top of the contact system 2, the connecting bracket system 3, the arc extinguishing system 4 and the electromagnetic system 5 are all arranged in the contact protection device 7, the number of the independent wiring terminal modules 8 is two, and the independent wiring terminal modules are arranged at two sides of the contact protection device 7, so that the connection and disconnection of the AC-3 using type and the rated working current to a 95A circuit when the rated working voltage is 380V can be controlled remotely; the alternating current contactor 1 is in modular design and small in size; has a plurality of installation modes; the protection level is high, and the electrical safety performance is reliable; the expandability is strong; there are a variety of wiring patterns.

The mounting base 6 comprises a base 601, a mounting fixture block 608 and a fixture block spring 607 are arranged on the upper surface of the base 601, a TH35mm standard fixture rail 609, a TH75mm standard fixture rail 603, a screw mounting hole 602, a mounting hole 606, a derived product fixing hole 610, a dovetail groove 604 and an appearance cave shape 605 are arranged on the upper surface of the base 601, a forming screw 611 is arranged in the mounting hole 606, the mounting base 6 is provided with a TH35mm standard fixture rail 609, a TH75mm standard fixture rail 603 and a screw mounting hole 602, and a user can conveniently select a proper mounting mode.

The contact system 2 comprises a first shell 211 and a second shell 214, the first shell 211 and the second shell 214 are fixedly connected with a mounting hole 606 through a set screw 611, a static main contact 207 is fixedly connected between the first shell 211 and the second shell 214, the outer surfaces of the upper layers of the first shell 211 and the second shell 214 are respectively provided with a first expansion module fixing window 204, an expansion module fixing convex hull 205, a normally closed auxiliary contact fixing window 201, a normally open auxiliary contact fixing window 202, an expansion module hanging groove 213 and an arc extinguishing device fixing window 216, the outer surfaces of the lower layers of the first shell 211 and the second shell 214 are respectively provided with a clamping groove 206, a first clamping hook 215, a second expansion module fixing window 208, a contact protection system fixing window 210 and an expansion module clamping groove 209, three sets of static main contacts 207 are respectively embedded in the lower layers of the first shell 211 and the second shell 214, a set of static normally open auxiliary contact 203 and a set of static normally closed auxiliary contact 212 are respectively embedded in the upper layers, and the normally closed auxiliary contact fixing window 201 and the normally open auxiliary contact fixing window 202 are respectively and fixedly connected with a static normally open auxiliary contact 203 and a static normally closed auxiliary contact 212.

The electromagnetic system 5 comprises a direct-acting type E-shaped self-buckled laminated silicon steel sheet moving iron 502, a coil 503, a counter force spring 505 and an E-shaped self-buckled laminated silicon steel sheet static iron 504, wherein the E-shaped self-buckled laminated silicon steel sheet static iron 504 is clamped on the upper surface of the cavity on the inner side of the base 601, the direct-acting type E-shaped self-buckled laminated silicon steel sheet moving iron 502, the coil 503 and the counter force spring 505 are arranged on the top of the E-shaped self-buckled laminated silicon steel sheet static iron 504, the E-shaped self-buckled laminated silicon steel sheet moving iron 502 is fixedly connected to the bottom of the sheet spring 501, the electromagnetic system 5 leads a coil 503 control loop wiring terminal to the upper layer of a main loop through a wiring terminal and is arranged on the same layer with an auxiliary loop, and the alternating current contactor 1 is convenient for wiring of a user and reduced in size.

The connecting bracket system 3 comprises a main contact bracket 303, the main contact bracket 303 is fixedly connected to the top of the leaf spring 501, a main contact spring 306 is fixedly connected to the inside of the main contact bracket 303, a movable main bridge-shaped contact 304 is fixedly connected to the bottom of the main contact spring 306, expansion module connecting windows 305 are arranged on two sides of the main contact bracket 303, a movable auxiliary bridge-shaped contact 301, an installation groove-shaped guide rail 310, an auxiliary contact bracket 302, a first expansion module hanging interface 308 and an auxiliary contact spring 307 are arranged on the top, and a convex hook 309 is arranged on the bottom.

The arc extinguishing system 4 comprises an auxiliary contact arc extinguishing system 401 and a main contact arc extinguishing system 402, the auxiliary contact arc extinguishing system 401 is arranged at the upper end, the main contact arc extinguishing system 402 is arranged at the root of each phase of main contact, the main contact arc extinguishing system 402 comprises a cavity and an arc extinguishing piece 403, the arc extinguishing piece 403 comprises an arc striking convex hull 404 and an L-shaped arc striking angle 405, the upper end of the arc-extinguishing member 403 is provided with a T-shaped structure 406, the T-shaped structure 406 is connected with the first shell 211 and the second shell 214 in a hanging manner, the arc-extinguishing member 403 in the arc-extinguishing system 4 is provided with an L-shaped arc-striking angle 405, the movable main bridge-shaped contact 304 in the movable connecting bracket system 3 is designed with a ship-shaped arc striking angle structure, when the two are assembled on the alternating current contactor 1 to act, electric arcs generated when the contacts are connected and disconnected are effectively led to the independent arc extinguish chamber, so that the contacts of the alternating current contactor 1 are quickly extinguished, and the control of a 95A large-current circuit is realized.

The contact protection device 7 comprises a transparent cover viewing window 702, a top protection cover 701, an auxiliary protection cover 703, a main protection cover 704 and a dust cover 705, wherein an expansion module fixing cavity 7033 is arranged on the left side of the auxiliary protection cover 703, a hanging hook 7032 is arranged at the bottom, a module fixing window 7034 is arranged at the top, a cave-shaped gallery column model 7031, a quick-plug type elastic-flat-pad-connection-type auxiliary protection cover 706 and a spring terminal clamping type auxiliary protection cover 707 are arranged at the wiring position, an auxiliary protection cover fixing window 7044 and a wiring terminal module fixing groove 7041 are arranged at the top of the main protection cover 704, a main loop wiring terminal module fixing window 7042 and a wiring terminal module fixing window 7043 are respectively arranged on two end faces, an expansion module adjusting window 7045, a crescent-shaped involute 7048, a horizontal-shaped 7046, a side-mounted expansion module connecting window 7047 and an enterprise logo 7049 are arranged on the bottom, a main protection cover 704, the insulating ribs are designed on the inner sides of the auxiliary protective cover 703 and the main protective cover 704, so that the electric clearance and creepage distance between the phase contacts of the contact system 2 are improved, the size of the alternating current contactor 1 is reduced, the modular design of the alternating current contactor 1 is realized, and the space utilization rate of the box body is effectively improved.

The wiring terminal module 8 comprises a wiring seat 801, a wiring frame 802, a bottom plate 803, a protective cover 804 and an extended function wiring seat 805, wherein an extended module fixing structure 8010, an extended module hooking groove 8012 and a counter bore fading surface 8011 are arranged at the top of the wiring seat 801, a first extended module fixing groove 8014 and a first cave type gallery column appearance type 8013 are arranged on the end surface of the wiring seat 801, a second extended module hanging interface 8015 is arranged at the bottom of the wiring seat 801, a clamping convex hull 8016 and a lower clamping convex hull 8017 are arranged on the back surface of the wiring seat 801, different extended modules can be additionally arranged, and multifunctional modular design of the alternating current contactor 1 is achieved.

The extended function wire holder 805 is matched with the protective cover 804, the extended function wire holder 805 is provided with a fixed hook 8050, a second cave-shaped gallery column appearance 8051, a second extended module fixing groove 8052 and a fixed boss 8053, the protective cover 804 is provided with a module fixing structure 8043, a third cave-shaped gallery column appearance 8041, a fixed convex hull 8042, an extended module fixing groove 8040 and an elastic fixing clamping block 8044, and the protective cover is provided with a top protective cover 701, an auxiliary protective cover 703, a main protective cover 704, a dust cover 705 and an independent wiring terminal module 8, and various protective covers 804 are independently clamped, so that the assembly process of the alternating current contactor 1 is simplified, and the protection grade of the alternating current contactor 1 is effectively improved; independent terminal module 8 clamps at casing contact afterbody, both made things convenient for the aggregate erection of protection electrical apparatus, through the fixed draw-in groove of extension module and the creepage distance between each looks of cave type corridor post outward appearance shape increase on independent terminal module 8 again, effectively improve alternating current contactor 1 electrical safety performance, through assisting the fixed window 7034 of top module and the fixed chamber structural design of left side module on the protection casing 703, realize the expanded function in alternating current contactor 1 top.

The working principle is as follows: when the coil 503 is electrified, a magnetic field is generated around the iron core, under the action of magnetic force, the E-shaped self-buckling laminated riveting silicon steel sheet moving iron 502 overcomes the counterforce of the counterforce spring 505, the main contact spring 306 and the auxiliary contact spring 307 to drive the connecting support system 3 to move downwards, when the connecting support system 3 moves downwards for a certain stroke, the movable closing main bridge-shaped contact 304 is reliably contacted with the static main contact 207, the movable closing auxiliary bridge-shaped contact 301 is reliably contacted with the static normally-open auxiliary contact 203, the movable closing auxiliary bridge-shaped contact 301 is completely disconnected with the static normally-closed auxiliary contact 212, and the alternating current contactor 1 is completely attracted; when the coil 503 is powered off, the connecting bracket system 3 is driven to move upwards under the action of the counter force spring 505, the main contact spring 306 and the auxiliary contact spring 307, the dynamic closing main bridge-shaped contact 304 is completely disconnected with the static main contact 207, the dynamic closing auxiliary bridge-shaped contact 301 is completely disconnected with the static normally-open auxiliary contact 203, the dynamic closing auxiliary bridge-shaped contact 301 is reliably contacted with the static normally-closed auxiliary contact 212, and the alternating current contactor 1 is completely disconnected;

the shell in the contact system 2 is divided into two halves, the main loop and the auxiliary loop are designed in a layered mode, independent arc extinguishing chambers are respectively designed on the incoming line side and the outgoing line side of each phase of the contact and the contact, and insulating ribs and arc isolating plates are designed among the auxiliary protective cover 703, the main protective cover 704 and the contact system 2, so that each phase of the alternating current contactor 1 forms an independent closed arc extinguishing chamber, electric arcs generated in the switching-on and breaking processes of the alternating current contactor 1 are subjected to certain pressure, the electric arcs are quickly extinguished, zero flashover of the action of the alternating current contactor 1 is realized,

an expansion module fixing structure 8010 is designed at the top of the main protective cover 704 and can be firmly hooked with the auxiliary protective cover 703 with various wiring types, so that various wiring type structures of an auxiliary circuit of the alternating current contactor 1 and a control circuit of the coil 503 are realized, and the wiring requirements of diversified users are met. The current auxiliary circuit of the alternating current contactor 1 has four wiring types, namely a tile mat screw wiring type, a spring terminal card wiring type, a quick plug-in type and a spring flat mat bolt wiring type;

different wiring terminal modules 8 can be fixed through the design of module fixing structures 8043 on two sides of the main protective cover 704, so that different wiring types of a main loop of the alternating current contactor 1 are realized, and the conventional wiring type of the main loop of the alternating current contactor 1 comprises a frame wiring type and a flat cushion bolt wiring type;

a module fixing structure 8043 and a module fixing clamping groove are designed at the top end of the terminal module 8, dovetail grooves 604 and pit structures are designed on the side faces of the mounting base 6, and different expansion modules can be additionally arranged on the structures, so that the multifunctional modular design of the alternating current contactor 1 is realized.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a novel multi-functional ac contactor, includes ac contactor (1), its characterized in that: the alternating current contactor (1) comprises a contact system (2), a connecting bracket system (3), an arc extinguishing system (4), an electromagnetic system (5), a mounting base (6), a contact protection device (7) and an independent terminal module (8);

contact system (2), electromagnetic system (5) and contact protector (7) set up the top at installation base (6), arc extinguishing system (4) are connected with contact system (2) are fixed, linking bridge system (3) set up the top at contact system (2), just contact system (2), linking bridge system (3), arc extinguishing system (4) and electromagnetic system (5) all set up the inside at contact protector (7), independent wiring terminal module (8) quantity is two, and sets up the both sides at contact protector (7).

2. The novel multifunctional alternating current contactor as claimed in claim 1, wherein: the mounting base (6) comprises a base (601), a mounting clamping block (608) and a clamping block spring (607) are arranged on the upper surface of the base (601), a TH35mm standard clamping rail (609), a TH75mm standard clamping rail (603), a screw mounting hole (602), a mounting hole (606), a derived product fixing hole (610), a dovetail groove (604) and an appearance cave type (605) are formed in the upper surface of the base (601), and a forming screw (611) is arranged in the mounting hole (606).

3. The novel multifunctional alternating current contactor as claimed in claim 2, characterized in that: the contact system (2) comprises a first shell (211) and a second shell (214), wherein the first shell (211) and the second shell (214) are fixedly connected with a mounting hole (606) through a forming screw (611), a static main contact (207) is fixedly connected between the first shell (211) and the second shell (214), the outer surfaces of the upper layers of the first shell (211) and the second shell (214) are respectively provided with a first expansion module fixing window (204), an expansion module fixing convex hull (205), a normally closed auxiliary contact fixing window (201), a normally open auxiliary contact fixing window (202), an expansion module hooking groove (213) and an arc extinguishing device fixing window (216), and the outer surfaces of the lower layers of the first shell (211) and the second shell (214) are respectively provided with a clamping groove (206), a first clamping hook (215), a second expansion module fixing window (208), The contact protection system comprises a contact protection system fixing window (210) and an expansion module clamping groove (209), wherein three groups of static main contacts (207) are respectively inlaid in the lower layers of a first shell (211) and a second shell (214), a group of static normally-open auxiliary contacts (203) and a group of static normally-closed auxiliary contacts (212) are respectively inlaid in the upper layers of the first shell and the second shell, and the normally-closed auxiliary contact fixing window (201) and the normally-open auxiliary contact fixing window (202) are respectively and fixedly connected with a static normally-open auxiliary contact (203) and a static normally-closed auxiliary contact (212).

4. The novel multifunctional alternating current contactor as claimed in claim 2, characterized in that: the electromagnetic system (5) comprises a direct-acting type E-shaped self-buckled laminated riveting silicon steel sheet moving iron (502), a coil (503), a counter force spring (505) and an E-shaped self-buckled laminated riveting silicon steel sheet static iron (504), wherein the E-shaped self-buckled laminated riveting silicon steel sheet static iron (504) is connected to the upper surface of the inner side cavity of the base (601) in a clamped mode, the direct-acting type E-shaped self-buckled laminated riveting silicon steel sheet moving iron (502), the coil (503) and the counter force spring (505) are arranged at the top of the E-shaped self-buckled laminated riveting silicon steel sheet static iron (504), and the E-shaped self-buckled laminated riveting silicon steel sheet moving iron (502) is fixedly connected to the bottom of the sheet spring (501).

5. The novel multifunctional alternating current contactor as claimed in claim 4, wherein: connecting bracket system (3) include main contact support (303), main contact support (303) fixed connection is at the top of leaf spring (501), the inside fixedly connected with main contact spring (306) of main contact support (303), just the bottom fixedly connected with of main contact spring (306) moves and closes main bridge shape contact (304), main contact support (303) both sides set up extension module connection window (305), and the top is provided with and moves and closes supplementary bridge shape contact (301), installation cell type guide rail (310), supplementary contact support (302), first extension module and hangs interface (308) and supplementary contact spring (307), and the bottom sets up protruding couple (309).

6. The novel multifunctional alternating current contactor as claimed in claim 2, characterized in that: the arc extinguishing system (4) has auxiliary contact arc extinguishing system (401) and main contact arc extinguishing system (402), auxiliary contact arc extinguishing system (401) sets up in the upper end, main contact arc extinguishing system (402) sets up the root at each looks main contact, main contact arc extinguishing system (402) includes cavity and arc extinguishing member (403), arc extinguishing member (403) are including striking convex closure (404) and "L" type striking angle (405), and arc extinguishing member (403) upper end sets up "T" type structure (406), just "T" type structure (406) articulate with first casing (211) and second casing (214).

7. The novel multifunctional alternating current contactor as claimed in claim 1, wherein: the contact protection device (7) comprises a transparent cover viewing window (702), a top protection cover (701), an auxiliary protection cover (703), a main protection cover (704) and a dust cover (705), wherein an expansion module fixing cavity (7033) is arranged on the left side of the auxiliary protection cover (703), a hanging hook (7032) is arranged at the bottom of the auxiliary protection cover, a module fixing window (7034) is arranged at the top of the auxiliary protection cover, a cave-shaped gallery column model (7031) and a quick plug-in type elastic flat cushion connection line type auxiliary protection cover (706) and a spring terminal clamping type auxiliary protection cover (707) are arranged at a wiring position of the auxiliary protection cover (704), an auxiliary protection cover fixing window (7044) and a wiring terminal module fixing groove (7041) are arranged at the top of the main protection cover (704), a main loop wiring terminal module fixing window (7042) and a wiring terminal module fixing window (7043) are respectively arranged on two end faces of the main protection cover, The water-shaped model (7046), the side-mounted expansion module connecting window (7047) and the enterprise sign (7049), and the bottom is provided with a main protective cover (704) and a second clamping hook (7040).

8. The novel multifunctional alternating current contactor as claimed in claim 1, wherein: the wiring terminal module (8) comprises a wiring seat (801), a wiring frame (802), a bottom plate (803), a protective cover (804) and an expansion function wiring seat (805), wherein an expansion module fixing structure (8010), an expansion module hanging groove (8012) and a counter bore fading surface (8011) are arranged at the top of the wiring seat (801), a first expansion module fixing groove (8014) and a first cave type gallery column appearance type (8013) are arranged on the end surface, a second expansion module hanging interface (8015) is arranged at the bottom of the wiring seat (801), and a clamping convex bag (8016) and a lower clamping convex bag (8017) are arranged on the back surface of the wiring seat (801).

9. The new multifunctional ac contactor as claimed in claim 8, wherein: expanded function connection terminal (805) and protection casing (804) phase-match, set up fixed couple (8050), second cave type corridor post outward appearance type (8051), second expansion module fixed slot (8052) and fixed boss (8053) on expanded function connection terminal (805), set up module fixed knot structure (8043), third cave type corridor post outward appearance type (8041), fixed convex closure (8042), expansion module fixed recess (8040) and elasticity fixed fixture block (8044) on protection casing (804).

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