CN208970438U - Bar-type D.C. contactor - Google Patents

Abstract

A kind of bar-type D.C. contactor, the interior lower section of shell is fixed with quiet main contacts, and quiet main contacts both ends are fixedly connected with busbar；Middle part is equipped with electromagnetic system in shell, and electromagnetic system is made of double winding coil, static iron core and dynamic iron core；Shell internal upper part converts back contact and three groups of auxiliary transfer contacts equipped with one group of coil, is fitted with push rod in the static iron core and dynamic iron core, and reset spring is set in the middle part of push rod；The lower end of push rod is set with dynamic main contacts and pressure spring, and dynamic main contacts is located at the lower section of quiet main contacts；The upper end of the push rod is fixed with double-deck 4 push-plates, and four groups of operating points up and down of double-deck 4 push-plates respectively correspond one group of coil conversion back contact and three groups of auxiliary transfer contacts.The utility model main contacts uses bridge-type conical surface contact contact form, and exit is mounting device again, saves space, and simple installation meets the switching requirement of lightweight, heavy load.

Description

Bar-type D.C. contactor

Technical field

The utility model belongs to electromagnetic contactor manufacturing technology field, and in particular to a kind of bar-type D.C. contactor.

Background technique

The exit of Traditional DC contactor main contacts is all made of stud formula, and mounting device and exit are discrete knots Structure, leads to that product overall structure is loose, installation is complicated, heavier-weight, has been unable to meet lightweight requirements.In addition, Traditional DC The mode of connection of contactor auxiliary contact is cumbersome, complicated, messy, and the reliability of product is caused to reduce；Main contacts is not able to satisfy greatly The switching requirement of load, and the power consumption of coil is larger.

Summary of the invention

The technical issues of the utility model solves: a kind of bar-type D.C. contactor is designed, to overcome the prior art It is insufficient.

The technical solution of the utility model: a kind of bar-type D.C. contactor has shell, the upper part of the housing Side is fixed with rectangular connector, and lower section is fixed with quiet main contacts in the shell, and quiet main contacts both ends are fixedly connected with remittance Item is flowed, and extends to busbar outside shell；Middle part is equipped with electromagnetic system in the shell, and the electromagnetic system is by double winding line Circle, static iron core and dynamic iron core are constituted, and double winding coil input end and rectangular connector are electrically connected；The shell internal upper part is equipped with One group of coil conversion back contact and three groups of auxiliary transfer contacts, and one group of coil conversion back contact and three groups of auxiliary conversion touchings Point is electrically connected with rectangular connector respectively；It is fitted with push rod in the static iron core and dynamic iron core, and is set in the middle part of push rod Reset spring；The lower end of the push rod is set with dynamic main contacts and pressure spring, and dynamic main contacts is located at the lower section of quiet main contacts；It is described The upper end of push rod is fixed with double-deck 4 push-plates, and four groups of operating points up and down of double-deck 4 push-plates respectively correspond one group of coil and turn Change back contact and three groups of auxiliary transfer contacts；When original state passes through rectangular connector to double winding coil energization, double winding Only one winding work once electrified of coil simultaneously generates electromagnetic attraction, makes dynamic iron core that push rod be driven to overcome the resistance of reset spring upward Movement pushes one group of coil to convert back contact and three groups of auxiliary conversion touchings by four groups of the lower section operating point of double-deck 4 push-plates Point makes one group of coil conversion back contact disconnect the tandem working of double winding coil, and the back contact of three groups of auxiliary transfer contact is disconnected It opens, moving together contact is connected and dynamic main contacts contacts with quiet main contacts and passes through pressure spring and provides contact force；When double winding coil When power-off, electromagnetic attraction disappears, and dynamic iron core drives push rod to move downward under the action of reset spring, passes through double-deck 4 push-plates The four groups of operating points in top push one group of coil conversion back contact and three groups of auxiliary transfer contacts and dynamic main contacts to return to just Beginning state.

Be equipped with above the shell pcb board, one group of coil conversion back contact and three groups of auxiliary transfer contacts and Double winding coil input end distinguishes soldering on pcb board, is electrically connected by pcb board and rectangular connector.

The contact surface of the dynamic main contacts and quiet main contacts is the mutually matched conical surface.

The utility model has the advantage that compared with prior art and effect:

Electromagnetic system uses the compound winding of unicoil of the actuating coil in conjunction with hold-in winding, high-power start, small-power It keeping, the conversion between actuating coil and hold-in winding is voluntarily switched by inner contact, and no external control circuit, structure is simple, It is low in energy consumption.

Main contacts uses bridge-type conical surface contact contact form, provides contact force and tracking, conductive area by helical spring Greatly, the switching requirement of heavy load can be met.

Auxiliary contact part uses leaf spring contact form, and pcb board connection, contact performance is good, high reliablity, can meet height Environmental index requirement.

Auxiliary contact exit and coil input use rectangular connector interface form, and main contacts exit uses busbar Formula, busbar are both main contacts exit and mounting device, save space, simple installation meets lightweight requirements.

Detailed description of the invention

Fig. 1 is the outline drawing of the utility model,

Fig. 2 is the structure sectional view of the utility model,

Fig. 3 is the transfer contact of the utility model coil and assists transfer contact structural schematic diagram,

Fig. 4 is the utility model pusher structure schematic diagram,

Fig. 5 is the utility model circuit diagram.

Specific embodiment

An embodiment of the present invention is described in conjunction with attached drawing 1,2,3,4,5.

A kind of bar-type D.C. contactor has shell 1, and the 1 top side of shell is fixed with rectangular connector 9； Lower section is fixed with quiet main contacts 2 in the shell 1, and 2 both ends of quiet main contacts are fixedly connected with busbar 3, and prolong busbar 3 It extends to outside shell 1；Middle part is equipped with electromagnetic system 4 in the shell 1, the electromagnetic system 4 by double winding coil 7, static iron core and Dynamic iron core 8 is constituted, and 7 input terminal of double winding coil and rectangular connector 9 are electrically connected；1 internal upper part of shell is equipped with one group of line Circle conversion back contact 5 and three groups of auxiliary transfer contacts 6, and one group of coil conversion back contact 5 and three groups of auxiliary transfer contacts 6 It is electrically connected respectively with rectangular connector 9；Push rod 10, and the middle part set of push rod 10 are fitted in the static iron core and dynamic iron core 8 Equipped with reset spring 13；The lower end of the push rod 10 is set with dynamic main contacts 11 and pressure spring 14, and dynamic main contacts 11 is located at quiet master The lower section of contact 2；The upper end of the push rod 10 is fixed with double-deck 4 push-plates 12, and four groups of works up and down of double-deck 4 push-plates 12 Make point 15 and respectively corresponds one group of coil conversion back contact 5 and three groups of auxiliary transfer contacts 6；Original state passes through rectangular connector 9 to double winding coil 7 be powered on when, only one the winding work once electrified of double winding coil 7 simultaneously generates electromagnetic attraction, makes dynamic iron core 8 It drives push rod 10 that the resistance of reset spring 13 is overcome to move upwards, is pushed away by four groups of the lower section operating point 15 of double-deck 4 push-plates 12 Dynamic one group of coil conversion back contact 5 and three groups of auxiliary transfer contacts 6 make one group of coil conversion back contact 5 disconnect double winding 7 tandem working of coil, the back contact of three groups of auxiliary transfer contact 6 disconnects, moving together contact is connected and dynamic main contacts 11 with it is quiet Main contacts 2 contacts and provides contact force by pressure spring 14；When double winding coil 7 powers off, electromagnetic attraction disappears, dynamic iron core 8 It drives push rod 10 to move downward under the action of reset spring 13, is pushed away by four groups of the top operating point 15 of double-deck 4 push-plates 12 Dynamic one group of coil conversion back contact 5 and three groups of auxiliary transfer contacts 6 and dynamic main contacts 11 return to original state.

Pcb board 16, one group of coil conversion back contact 5 and three groups of auxiliary transfer contacts 6 are equipped with above the shell 1 And the difference soldering of 7 input terminal of double winding coil is electrically connected on pcb board 16 by pcb board 16 and rectangular connector 9.Institute The contact surface for stating main contacts 11 and quiet main contacts 2 is the mutually matched conical surface.

The utility model uses solenoid type magnetic structure, and there is one group of dynamic circuit connector main contacts, one group of coil to convert quiet conjunction touching Point and three groups of auxiliary transfer contacts, coil input, one group of coil conversion back contact and auxiliary transfer contact exit are using company It connects device interface form, and main contacts exit is bar-type, has the characteristics that compact-sized, simple installation, light-weight, to expire Sufficient lightweight requirements.

Working principle: it when being powered on according to regulation parameter to actuating coil (simplex winding work), is generated in electromagnetic system Magnetic flux generates the electromagnetic attraction of a certain size and direction under the action of magnetic flux at air gap, and overcomes the anti-of return spring Power, dynamic iron core drive push rod to move upwards, and so that one group of coil conversion back contact is disconnected hold-in winding and connect and (the double winding that works Coil tandem working), the back contact of three groups of auxiliary transfer contact disconnects, moving together contact is connected and main contacts is connected；When double When winding coil powers off, electromagnetic attraction disappears, and dynamic iron core drives push rod to move downward under the action of reset spring, makes one group of line Circle conversion back contact, three groups of auxiliary transfer contacts and dynamic main contacts return to original state.At this point, actuating coil connects again It is logical, wait next task.

Above-described embodiment, the only preferred embodiment of the utility model are not used to limit the utility model practical range, Therefore all equivalent variationss done with content described in the utility model claims, the utility model claims model should all be included in Within enclosing.

Claims (3)

1. a kind of bar-type D.C. contactor has shell (1), shell (1) the top side is fixed with rectangular connector (9), it is characterized in that: lower section is fixed with quiet main contacts (2) in the shell (1), and quiet main contacts (2) both ends are fixedly connected with remittance It flows item (3), and busbar (3) is made to extend to shell (1) outside；Middle part is equipped with electromagnetic system (4) in the shell (1), the electricity Magnetic system (4) is made of double winding coil (7), static iron core and dynamic iron core (8), and double winding coil (7) input terminal is connect with rectangle Device (9) electrical connection；Shell (1) internal upper part is equipped with one group of coil conversion back contact (5) and three groups of auxiliary transfer contacts (6), and one group of coil conversion back contact (5) and three groups of auxiliary transfer contacts (6) electrically connect with rectangular connector (9) respectively It connects；It is fitted with push rod (10) in the static iron core and dynamic iron core (8), and is set with reset spring (13) in the middle part of push rod (10)； The lower end of the push rod (10) is set with dynamic main contacts (11) and pressure spring (14), and dynamic main contacts (11) are located at quiet main contacts (2) Lower section；The upper end of the push rod (10) is fixed with double-deck 4 push-plates (12), and four groups up and down of double-deck 4 push-plates (12) Operating point (15) respectively corresponds one group of coil conversion back contact (5) and three groups of auxiliary transfer contacts (6)；Original state passes through square When shape connector (9) is powered on to double winding coil (7), only one winding work once electrified of double winding coil (7) simultaneously generates electromagnetism Suction makes dynamic iron core (8) to drive push rod (10) that the resistance of reset spring (13) is overcome to move upwards, and passes through double-deck 4 push-plates (12) four groups of lower section operating point (15) pushes one group of coil conversion back contact (5) and three groups of auxiliary transfer contacts (6), makes one Group coil conversion back contact (5) disconnects double winding coil (7) tandem working, the back contact of three groups of auxiliary transfer contacts (6) It disconnects, moving together contact is connected and dynamic main contacts (11) is contacted with quiet main contacts (2) and provides contact pressure by pressure spring (14) Power；When double winding coil (7) power-off, electromagnetic attraction disappears, and dynamic iron core (8) drives push rod (10) in the work of reset spring (13) It is moved downward under, pushes one group of coil to convert back contact by four groups of the top operating point (15) of double-deck 4 push-plates (12) (5) and three groups of auxiliary transfer contacts (6) and dynamic main contacts (11) return to original state.

2. a kind of bar-type D.C. contactor according to claim 1, it is characterized in that: being equipped with above the shell (1) Pcb board (16), one group of coil conversion back contact (5) and three groups of auxiliary transfer contacts (6) and double winding coil (7) are defeated Entering end, soldering is electrically connected on pcb board (16) by pcb board (16) and rectangular connector (9) respectively.

3. a kind of bar-type D.C. contactor according to claim 1 or 2, it is characterized in that: the dynamic main contacts (11) Contact surface with quiet main contacts (2) is the mutually matched conical surface.