CN202282293U

CN202282293U - Indoor AC high voltage vacuum contactor

Info

Publication number: CN202282293U
Application number: CN2011204170959U
Authority: CN
Inventors: 张伟
Original assignee: ZHEJIANG XINANJIANG SWITHGEAR MANUFACTURING Co Ltd
Current assignee: ZHEJIANG XINANJIANG SWITHGEAR MANUFACTURING Co Ltd
Priority date: 2011-10-28
Filing date: 2011-10-28
Publication date: 2012-06-20
Anticipated expiration: 2021-10-28

Abstract

The present utility model relates to an indoor AC vacuum contactor. The contactor comprises a framework for the contactor, a vacuum tube, a conductive part group, an insulator part, a linkage plate, a rotating shaft, an electromagnetic operation mechanism, a static iron core pedestal, an armature, an opening spring and a contactor pedestal. The contactor is characterized in that the an upper busbar and a lower busbar are arranged inside the framework, the upper busbar is connected with a static current conducting plate of the vacuum tube, the lower busbar is connected a movable conducting rod of the vacuum tube through soft connection; the movable conducting rod of the vacuum tube is provided with an insulator, the insulator is arranged on the linkage plate, the other end of the linkage plate is connected with the rotating shaft and the armature; the framework is fitted with the contactor pedestal through four installing holes of the bottom part of the framework; the contactor pedestal is provided with the static iron core pedestal and the electromagnetic mechanism which are connected with the opening spring and the armature through adjusting screws; and a spacing device is arranged on the contactor pedestal.

Description

Indoor AC high voltage vacuum contactor

Technical field

The utility model relates to a kind of indoor AC high voltage vacuum contactor, especially relates to a kind of improvement to high pressure vacuum contactor construction and performance.

Background technology

JCZ5-12 series high voltage vacuum contactor is applicable to department and industrial enterprise's adapted electric systems such as metallurgy, mine, petrochemical industry, building; Be used for controlling the high-voltage motor of 12kV and following grade; Power consumption equipment such as transformer and capacitive load; Be specially adapted to various frequent operations field, owing to its superior performance is used widely and is developed.In the production and utilization process of reality; We have progressively found the weak point of JCZ5 type vacuum contactor conventional base structure: (1) easy deformation; Because the distance of both sides vertical component is bigger; Steel plate thickness is too thin, contactor very easily stressed generation distortion in adhesive or separating brake release and installation, transportation, thus the performance of contactor is caused harmful effect; (2) complex-shaped, be difficult for processing, cost height.Because its complicated contour structures is not suitable for mold production, has caused the loaded down with trivial details of manufacturing procedure, the manufacture craft of existing bending after cutting of employing line or the laser cutting, its cost is also too high.

The utility model content

In order to solve the weak point of the said goods, the purpose of the utility model provides a kind of indoor AC vacuum contactor of novel 12kV electric pressure.

To achieve these goals, the utility model adopts following technical scheme:

A kind of indoor AC vacuum contactor; It comprises that contactor is with framework, vacuum tube and conductive component group, insulator part, interlock plate, rotating shaft, electromagnetic operating mechanism, static iron core seat, armature, tripping spring and contactor base; It is characterized in that: upper and lower busbar is housed in framework; Last busbar links to each other with the quiet conductive plate of vacuum tube, and following busbar links to each other with the moving conductive rod of vacuum tube through soft connection; The moving conductive rod of vacuum tube is equipped with insulator, and insulator is contained on the interlock plate, and the other end of interlock plate links to each other with rotating shaft, armature; Framework cooperates with the contactor base through four installing holes of base of frame; The static iron core seat is housed on the base of contactor, and electromagnetic mechanism links to each other with armature through adjustment screw rod, tripping spring; On the contactor base, also be provided with stopping means.

Above-mentioned base is that a block length is square, that 5mm is thick steel plate is converted into " n " shape, welds the thick steel plate of 10mm in the above as pedestal.

The understructure of the utility model vacuum contactor has changed the version of traditional JCZ5 type vacuum contactor base; Traditional understructure is steel plate to be converted into " U " font; The inside parts such as solenoid of packing into adopt the form of crosswise fixed then with framework.Traditional understructure weak point is: structure is not firm, yielding, thereby makes the mechanical performance of contactor unreliable, influences the safe handling property of contactor.

The advantage of the utility model vacuum contactor is compact conformation, sturdy and durable, easy installation, long service life; Overcome the weak point of traditional JCZ5-12 type vacuum contactor base; In the serviceability that has improved contactor, reduced the work of aspects such as maintenance, adjustment.

Description of drawings

Fig. 1 is the utility model understructure.

Embodiment

Pass through instance below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.

This contactor construction can be divided into framework combination and electromagnetic operating mechanism two large divisions (seeing accompanying drawing 1):

1, the framework built-up section is equipped with the three-phase main conductive circuit and is transversely arranged, and after last busbar 1 was fixed on the framework 2, the quiet end of the other end and vacuum tube 3 together was fixed on the framework.Following busbar 5 is fastened on the relevant position of framework with soft connection 4, and the other end of soft connection fastens the end face at the moving conductive rod of vacuum tube with insulator 6.Touch spring 7 cooperates assembling with the screw rod of the insulator other end successively with interlock plate 8.The other end of interlock plate cooperates assembling with rotating shaft 14 corresponding holes, and the another side of rotating shaft cooperates assembling with armature 15.

2, static iron core seat 12 is cooperated assembling with pedestal 10 on the base 13, static iron core 16 is inserted in the hole of coils 9, cooperate assembling with the static iron core seat.Regulate the corresponding screw that bolt 11 screws in the static iron core seat, load onto tripping spring 17.Screw in caging bolt 18 on the limiting plate 19 and be contained in base 13 corresponding positions.

3, after above-mentioned two parts are accomplished, the framework combination is corresponding on base, respectively 4 fastening with the bolt group.Then, load onto parts such as wiring board and auxiliary switch at frame facet, connect secondary line.

Its detailed structure and operating principle are: after electromagnetic system was connected power supply; Solenoid 9 can produce bigger electromagnetism the suction-combining force armature 15 is carried out adhesive; Armature carries out " formula of being in step with " action under the effect of electromagnetic force, turn clockwise thereby drive rotating shaft 14.Under the drive of rotating shaft, interlock plate 8 produces thrust upwards to three-phase touch spring 7 simultaneously, upwards does the motion of closing a floodgate through the moving conductive rod that insulator 6 drives vacuum tube 3, and moving contact that vacuum tube is inner and fixed contact are connected.After moving contact that vacuum tube is inner and fixed contact were connected, at this moment, interlock plate 8 will continue to move upward, and touch spring is compressed 7.Under the compression of touch spring, between the inner dynamic and static contact of vacuum tube, will produce the contact pressure of 100 ± 20N, thereby guarantee the reliability that contactor closes a floodgate.Meanwhile, tripping spring 17 energy storage under the effect of armature 15 is accomplished.

Two parts are arranged: promptly play the closing coil of combined floodgate effect and the hold-in winding that "on" position is kept in conduct in the solenoid 9.After contactor was accomplished feed motion, the auxiliary switch that is installed in frame facet cut off the electric power loop of closing coil under the effect of hitting plate, at this moment, is continued the armature adhesive by hold-in winding.To keep and to guarantee the reliable and stable of contactor "on" position.

After contactor closes a floodgate, electric current successively through last busbar 1, vacuum tube 3 to soft connection 4, flow out from busbar 5 down at last, form a complete current circuit.

When cutting off road control power supply, after the solenoid 9 of contactor opens circuit, no longer produce the electromagnetism the suction-combining force, lost maintenance effect to armature 15.Armature separates with iron core 16 under the common work of tripping spring 17 and touch spring 7 fast; Under the drive of armature; Rotating shaft 15 is rotated counterclockwise; Interlock plate 8 drives insulator 6 moves downward 3 moving conductive rods of vacuum tube, and the inner moving contact of vacuum tube separates with the speed of 0.6 ± 0.1m/s with fixed contact fast.When opening when reaching 6 ± 0.5mm between the dynamic and static contact of vacuum tube, the caging bolt 18 that the motion of armature 15 is installed on the limiting plate 19 is placed restrictions on, and at this moment, contactor is accomplished the separating brake action, is in gate-dividing state.

1, adopting specification is the Q235A shaped steel plate of 450 * 231 * 5mm, sells off " n " shape, and the Q235A shaped steel plate that to weld a vertical specification in the above be 180 * 85 * 10mm is as pedestal.

Static iron core seat, solenoid, iron core, adjustment bolt, tripping spring, limiting plate etc. are installed in the pedestal front successively.

2, the installing hole on the base plate is adorned corresponding aggregate erection with the peace hole on the framework.

Should be pointed out that at last above instance only is the representational example of the utility model.Obviously, the technical scheme of the utility model is not limited to above-mentioned instance, and many distortion can also be arranged, and all should think the protection range of the utility model.

Claims

1. indoor AC vacuum contactor; It comprises that contactor is with framework, vacuum tube and conductive component group, insulator part, interlock plate, rotating shaft, electromagnetic operating mechanism, static iron core seat, armature, tripping spring and contactor base; It is characterized in that: upper and lower busbar is housed in framework; Last busbar links to each other with the quiet conductive plate of vacuum tube, and following busbar links to each other with the moving conductive rod of vacuum tube through soft connection; The moving conductive rod of vacuum tube is equipped with insulator, and insulator is contained on the interlock plate, and the other end of interlock plate links to each other with rotating shaft, armature; Framework cooperates with the contactor base through four installing holes of base of frame; The static iron core seat is housed on the base of contactor, and electromagnetic mechanism links to each other with armature through adjustment screw rod, tripping spring; On the contactor base, also be provided with stopping means.

2. indoor AC vacuum contactor according to claim 1 is characterized in that: its base is that a block length is square, that 5mm is thick steel plate is converted into " n " shape, welds the thick steel plate of 10mm in the above as pedestal.