CN103247478B - Contact totally closed contactor - Google Patents
Contact totally closed contactor Download PDFInfo
- Publication number
- CN103247478B CN103247478B CN201310133609.1A CN201310133609A CN103247478B CN 103247478 B CN103247478 B CN 103247478B CN 201310133609 A CN201310133609 A CN 201310133609A CN 103247478 B CN103247478 B CN 103247478B
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- China
- Prior art keywords
- iron core
- housing
- armature
- contact
- moving contact
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Abstract
The invention discloses a contact totally closed contactor which comprises movable contacts, a movable contact bracket, a movable contact spring, fixed contacts, an armature, a base, a buffer spring, a static iron core and electromagnetic coils, and further comprises a housing, wherein the movable contacts, the movable contact bracket, the movable contact spring, the armature and the buffer spring are sealed in the housing; one end of each of the fixed contacts extends into the housing, and the other end thereof extends out of the housing; a magnetic transitional iron core is arranged between the housing and the base; and the lower end of the magnetic transitional iron core penetrates the housing to be in contact with the static iron core, and the upper end penetrates the housing to be protruded below the armature. According to the invention, the movable contacts, the movable contact bracket, the movable contact spring, the armature and the buffer spring are sealed in the housing, the magnetic transitional iron core serves as a magnetic field conduction mechanism, so as to isolate the interior of the contactor from the outside, which in turn avoids entering of dusts and other impurities; and accordingly, the spark generated during contact of the contacts can not ignite methane gas and other inflammable and explosive gases so as to avoid potential safety hazards.
Description
Technical field
The present invention relates to technical field of electric equipment, be specifically related to a kind of contactor being applied to electric power, distribution and the on-off action with electrical domain.
Background technology
Contactor refers in industrial electro and utilizes solenoid to flow through current induced magnetic field, makes contact closure, to reach the electrical equipment of control load.Traditional contactor is made up of electromagnetic system (armature, static iron core, solenoid), contact system (moving contact and fixed contact) and arc-control device usually.Because fast shut-off can exchange with direct current major loop and the device with big current control circuit can be connected continually, so be often applied to motor as control object, also can be used as controlling work factory and establish standby electrical load such as ﹑ electricity hot device ﹑ machine-tool and various kinds electric power unit etc.
Owing to there is the impact of sound magnet arrangement in traditional contactors, contact cannot be carried out totally-enclosed, therefore its technological deficiency is open, namely aforementioned electromagnetic system and contact system are less than closing, the shortcoming that this structure exists is: first, the introduced contaminantses such as dust easily enter and are attached on contact, accumulation one deck dust on contact can be caused after long-time use, not only loose contact may be caused, also can increase the resistance between contact, when causing contactor to work, temperature increases to over setting, affect normal work and even damage contactor, then apart contactor will be taken as these dusts will be cleared up, its operation quite trouble, the second, contact produces spark in a flash sometimes what contact with each other, even if be provided with arc-control device, can not light the risk of the flammable explosive gas such as gas by arc control completely, there is certain potential safety hazard.Therefore, traditional contactor can not directly apply to the place that there is flammable explosive gas, and need install protector additional could use, and this not only can increase extra use cost, and protection effect is not ideal enough.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of reasonable in design, safe and reliable contact totally enclosed type contactor.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of contact totally enclosed type contactor, it is characterized in that: comprise moving contact, moving contact support, moving contact spring, fixed contact, armature, base, buffer spring, static iron core and solenoid, static iron core is arranged on base, solenoid is arranged on static iron core, armature is located at above static iron core, buffer spring is fixed on armature bottom surface, moving contact support is fixed on above armature, moving contact is fixed on moving contact support, fixed contact is the corresponding upper and lower being fixed on moving contact respectively, connected by moving contact spring between two moving contacts, liner is equipped with between moving contact support and armature, between static iron core bottom surface and base, this contactor also comprises an enclosed housing, and housing is fixed on base, and in moving contact, moving contact support, moving contact spring, armature and buffer spring are sealed in by housing, one end, contact of fixed contact is stretched in housing, and the other end stretches out in outside housing, be provided with magnetic force transition iron core between housing and base, magnetic force transition iron core lower end contacts with static iron core through housing, and upper end is exposed to below armature through housing is convex.Fixed contact and magnetic force transition iron core all can adopt the modes such as injection moulding and housing to combine, and its joint portion is hermetically-sealed construction.
Further, described magnetic force transition iron core is some pieces corresponding with static iron core superstructure, and the separate and lower end of each block magnetic force transition iron core all contacts with the bossing of static iron core.The magnetic field that solenoid energising produces can be transmitted to enclosure interior by magnetic force transition iron core, and acts on armature.
The present invention is by adopting in moving contact, moving contact support, moving contact spring, armature and buffer spring be sealed in by fully closed housing, and adopt magnetic force transition iron core as magnetic field conduction mechanism, which solve conducting problem contact being closed rear magnetic field, thus the inside of contactor can be hedged off from the outer world and come, avoid the impurity such as dust to enter, ensure that it can normally work for a long time; Come because the flammable explosive gas such as the gas that may be existed in the external world are isolated, gas can not ignite or ignite by the spark produced when can ensure contact, therefore the present invention need not be installed any additional protection device additional and can directly apply to and exist in the environment of flammable explosive gas, eliminate potential safety hazard, reliably safer, also greatly can reduce use cost.
Accompanying drawing explanation
Fig. 1 is plane structure chart of the present invention.
In figure, 1 is housing, and 2 is moving contact support, and 3 is moving contact, and 4 is moving contact spring, and 5 is fixed contact, and 6 is liner, and 7 is armature, and 8 is base, and 9 is buffer spring, and 10 is magnetic force transition iron core, and 11 is static iron core, and 12 is solenoid.
Embodiment
In the present embodiment, with reference to Fig. 1, described contact totally enclosed type contactor, comprise moving contact 3, moving contact support 2, moving contact spring 4, fixed contact 5, armature 7, base 8, buffer spring 9, static iron core 11 and solenoid 12, static iron core 11 is arranged on base 8, solenoid 12 is arranged on static iron core 11, armature 7 is located at above static iron core 11, buffer spring 9 is fixed on armature 7 bottom surface, moving contact support 2 is fixed on above armature 7, moving contact 3 is fixed on moving contact support 2, fixed contact 5 is the corresponding upper and lower being fixed on moving contact 3 respectively, connected by moving contact spring 4 between two moving contacts 3, liner 6 is equipped with between moving contact support 2 and armature 7, between static iron core 11 bottom surface and base 8, this contactor also comprises an enclosed housing 1, housing 1 is fixed on base 8, in moving contact 3, moving contact support 2, moving contact spring 4, armature 7 and buffer spring 9 are sealed in by housing 1, one end, contact of fixed contact 5 is stretched in housing 1, and the other end stretches out in outside housing 1, be provided with magnetic force transition iron core 10 between housing 1 and base 8, magnetic force transition iron core 10 lower end contacts with static iron core 11 through housing 1, and upper end is exposed to below armature 7 through housing 1 is convex.Fixed contact 5 and magnetic force transition iron core 10 all can adopt the modes such as injection moulding and housing 1 to combine, and its joint portion is hermetically-sealed construction.
Described magnetic force transition iron core 10 is some pieces corresponding with static iron core 11 superstructure, and the separate and lower end of each block magnetic force transition iron core 10 all contacts with the bossing of static iron core 11.Solenoid 12 can be energized by magnetic force transition iron core 10, and to be transmitted to housing 1 inner for the magnetic field that produces, and act on armature 7.
After tested, when through long-time use, the contact conduction property of contact remains good.
Below the present invention be described in detail, the above, be only the preferred embodiment of the present invention, when not limiting the scope of the present invention, namely allly does impartial change according to the application's scope and modify, all should still belong in covering scope of the present invention.
Claims (2)
1. a contact totally enclosed type contactor, it is characterized in that: comprise moving contact, moving contact support, moving contact spring, fixed contact, armature, base, buffer spring, static iron core and solenoid, static iron core is arranged on base, solenoid is arranged on static iron core, armature is located at above static iron core, buffer spring is fixed on armature bottom surface, moving contact support is fixed on above armature, moving contact is fixed on moving contact support, fixed contact is the corresponding upper and lower being fixed on moving contact respectively, is connected between two moving contacts by moving contact spring; Liner is equipped with between moving contact support and armature, between static iron core bottom surface and base; This contactor also comprises an enclosed housing, and housing is fixed on base, and in moving contact, moving contact support, moving contact spring, armature and buffer spring are sealed in by housing, one end, contact of fixed contact is stretched in housing, and the other end stretches out in outside housing; Be provided with magnetic force transition iron core between housing and base, magnetic force transition iron core lower end contacts with static iron core through housing, and upper end is exposed to below armature through housing is convex, and the magnetic field that solenoid energising produces is transmitted in housing and acts on armature by magnetic force transition iron core; The joint portion of fixed contact and magnetic force transition iron core and housing is hermetically-sealed construction.
2. contact according to claim 1 totally enclosed type contactor, is characterized in that: described magnetic force transition iron core is some pieces corresponding with static iron core superstructure, and the separate and lower end of each block magnetic force transition iron core all contacts with the bossing of static iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133609.1A CN103247478B (en) | 2013-04-17 | 2013-04-17 | Contact totally closed contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133609.1A CN103247478B (en) | 2013-04-17 | 2013-04-17 | Contact totally closed contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103247478A CN103247478A (en) | 2013-08-14 |
| CN103247478B true CN103247478B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310133609.1A Expired - Fee Related CN103247478B (en) | 2013-04-17 | 2013-04-17 | Contact totally closed contactor |
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| CN (1) | CN103247478B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013222495A1 (en) * | 2013-11-06 | 2015-05-07 | Robert Bosch Gmbh | protective arrangement |
| CN105149042B (en) * | 2015-07-03 | 2017-12-19 | 广西鱼峰水泥股份有限公司 | A kind of method for reducing the cement grinding roller press failure frequency |
| US10236136B1 (en) * | 2018-02-24 | 2019-03-19 | Carling Technologies, Inc. | Arrangement for double break contact with electro-magnetic arc-blow |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203260534U (en) * | 2013-04-17 | 2013-10-30 | 田春 | Contactor with fully-closed contacts |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3543488B2 (en) * | 1996-05-28 | 2004-07-14 | 松下電工株式会社 | Manufacturing method and sealing method of sealed contact device |
| CN1136593C (en) * | 2001-06-08 | 2004-01-28 | 刘英来 | Contact structure and non-arc AC contactor |
| JP5385877B2 (en) * | 2010-08-31 | 2014-01-08 | 富士電機機器制御株式会社 | electromagnetic switch |
| KR101190853B1 (en) * | 2010-10-15 | 2012-10-15 | 엘에스산전 주식회사 | Manufacturing method of Sealed contactor |
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2013
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203260534U (en) * | 2013-04-17 | 2013-10-30 | 田春 | Contactor with fully-closed contacts |
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| CN103247478A (en) | 2013-08-14 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20190417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |