CN2342458Y

CN2342458Y - Three phase AC three pole sing breaking point direct driving contactor

Info

Publication number: CN2342458Y
Application number: CN 98210113
Authority: CN
Inventors: 张宝奇
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-02-11
Filing date: 1998-02-11
Publication date: 1999-10-06
Anticipated expiration: 2008-02-11

Abstract

The utility model relates to a three-phase AC three-pole sing-break point direct-driving contactor. The utility model is characterized in that a movable and a static iron cores are arranged in a casing body, wherein, the movable iron core is fixedly provided with a driving rod which has three movable contacts and three corresponding static contacts; the three movable contacts all fixed on the driving rod and each movable contact is connected with the lead-in end of a power supply via a flexible conductor; each static contact is provided with the leading-out end of the power supply. The utility model has the advantages of material saving, decreased manufacture cost, small size, broad application area, low accident rate and more convenient installation.

Description

Three-phase alternating current three utmost point single-break Direct Action Type contactors

The utility model relates to a kind of three-phase ac contactor, particularly a kind of three-phase alternating current three utmost point single-break Direct Action Type contactors.

There is following problem in existing technology: 1. waste material, 3 utmost point double break points have used three pairs of fixed contacts and three pairs of moving contacts, and three pairs of moving contacts also will connect copper coins with three.2. the quantity of contact-making surface is six pairs, connects simultaneously or disjunction, and the accident of the many more initiations of contact-making surface is just many more.3. because the comparatively complicated shared volume of structure is also bigger.4. existing three-phase ac contactor will be connected with lead with corresponding air switch, and is very inconvenient during installation.

The purpose of this utility model provides that a kind of volume is little, fault is few, three-phase alternating current three utmost point single-break Direct Action Type contactors of simple in structure and economical with materials.

The purpose of this utility model realizes by following structure: the utility model is a kind of three-phase alternating current three utmost point single-break Direct Action Type contactors, moving iron core and static iron core are installed in its housing, installing and fixing drive link on the moving iron core, it have three moving contacts and with corresponding three fixed contacts in its position, moving contact all is fixed on the drive link, each moving contact all is connected with power inleting terminal by flexible conductor, and the power outlet end all is installed on each fixed contact.

The utility model compared with prior art has the advantage of following several respects:

1. economical with materials can be saved three moving contacts and three fixed contacts and three arc quenching materials.Because the minimizing of material has reduced manufacturing cost.

2 have reduced volume because moving contact and fixed contact reduced near half, so volume has obtained certain reducing, this provides more field for application of the present utility model.

3. because the contact area of main contact has reduced three, therefore because the accident that poor contact of contacts causes has obtained minimizing.

4. the power inleting terminal of Cha Jieing makes the utility model more convenient when mounted.

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the utility model embodiment 2;

Fig. 3 is the socket schematic diagram of supply terminals;

Fig. 4 is the vertical view of Fig. 1.

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment 1:

The utility model as shown in Figure 1, be a kind of three-phase alternating current three utmost point single-break Direct Action Type contactors, moving iron core 2 and static iron core 3 are installed in its housing 1, installing and fixing drive link 4 on the moving iron core 2, it have three moving contacts 5 and with corresponding three fixed contacts 6 in its position, moving contact 5 all is fixed on the drive link 4, and each moving contact 5 all is connected with power inleting terminal by flexible conductor 7, on each fixed contact 6 the power outlet end is installed all.Concrete structure in the present embodiment is: drive link 4 other ends are being fixed the cross bar 9 of an eradication edge, phase is fixed three copper coins 10 respectively across a certain distance on cross bar, all fixedly connected with power inleting terminal by flexible conductor in the rear portion of every copper coin 10, as shown in Figure 4, moving contact 5 is all being fixed in the front portion of every copper coin, the bottom of each moving contact 5 is a fixed contact 6 corresponding with it, each fixed contact 6 all is fixed on the corresponding copper coin 8, and the leading-out terminal of contactor power supply all is installed on every copper coin 8.As shown in Figure 3, power inleting terminal is equipped with three plate cylinder hard copper conductors.This structure helps the replacing or the maintenance of main contact.

Embodiment 2:

The utility model as shown in Figure 2 is a kind of flip-over type structure, and other structure of present embodiment is identical with embodiment 1, has here just no longer repeated.This structure of the present utility model helps the replacing after iron-core coil damages.

Claims

1. three-phase alternating current three utmost point single-break Direct Action Type contactors, moving iron core (2) and static iron core (3) are installed in its housing (1), installing and fixing drive link (4) on the moving iron core (2), it is characterized in that: it have three moving contacts (5) and with corresponding three fixed contacts in its position (6), moving contact (5) all is fixed on the drive link (4), each moving contact (5) all is connected with power inleting terminal by flexible conductor (7), and each fixed contact all is installed with the power outlet end on (6).

2. a kind of three-phase alternating current three utmost point single-break Direct Action Type contactors according to claim 1, it is characterized in that: power inleting terminal is equipped with three polar circle post hard copper conductors.

3. a kind of three-phase alternating current three utmost point single-break Direct Action Type contactors according to claim 1 and 2, it is characterized in that: drive link (4) other end is being fixed the cross bar (9) of an eradication edge, go up phase at cross bar (9) and fix three copper coins (10) respectively across a certain distance, all fixedly connected with power inleting terminal by flexible conductor in the rear portion of every copper coin, moving contact (5) is all being fixed in the front portion of every copper coin, the bottom of each moving contact is a fixed contact corresponding with it, each fixed contact all is fixed on the corresponding piece copper coin (8), and the leading-out terminal of contactor power supply all is installed on the every copper coin (8).