CN104795277B - DC contactor - Google Patents
DC contactor Download PDFInfo
- Publication number
- CN104795277B CN104795277B CN201410026954.XA CN201410026954A CN104795277B CN 104795277 B CN104795277 B CN 104795277B CN 201410026954 A CN201410026954 A CN 201410026954A CN 104795277 B CN104795277 B CN 104795277B
- Authority
- CN
- China
- Prior art keywords
- contact
- push rod
- contactor
- ceramic member
- contact points
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/32—Insulating body insertable between contacts
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Contacts (AREA)
Abstract
The invention discloses a DC contactor which comprises two contact points arranged in a sealed shell, a contact piece, and a reciprocating driving mechanism. The contact piece is fixed at one end of a push rod. The reciprocating driving mechanism can drive the push rod to move in a reciprocating way to connect and disconnect the contact piece and the two contact points at the same time. One side face, close to the contact points, of the contact piece is fixedly provided with a ceramic piece. According to the DC contactor, the ceramic piece is added to the contact piece between the two contact points, the expanded length of electric arcs in the same space is elongated to 2 to 3 times of the original length, the electric arcs are extinguished before interconnection, and the reverse disconnection and connection ability of the DC contactor is greatly enhanced.
Description
Technical field
The present invention relates to a kind of automatically control interrupted electronic component, a kind of D.C. contactor is particularly related to.
Background technology
At present, existing D.C. contactor is typically made up of arc-chutes, running part, coil etc. on market, such contact
Utensil has the ability of break-make DC load under high voltages.In order to improve the arc extinction performance of such catalyst, such catalyst one
As employ the technology of magnetic quenching.Traditional magnetic quenching make use of galvanic directivity, with magnetic field by electric arc toward contact
The lateral direction of device is blown, and electric arc is elongated and is extinguished.But when reversely disconnecting, electric arc is located such catalyst in two contacts
Extend between two contacts in plane, be finally mutually conducted, cause electric arc to extinguish in time, so as to cause the D.C. contactor
Reverse make-break capacity it is weaker much than the positive break-make life-span.
The content of the invention
In order to overcome drawbacks described above, the invention provides a kind of D.C. contactor, can greatly improve the anti-of D.C. contactor
To make-break capacity.
The technical scheme that adopted to solve its technical problem of the present invention is：A kind of D.C. contactor, including located at close
Two contact points, contact chip and reciprocating drive mechanism in capsule body, the contact chip is fixed on push rod one end, described reciprocal
Driving structure the push rod can be driven to move back and forth with by the contact chip with two contact points while connect and disconnect, described
Contact chip is fixedly provided with a ceramic member on the one side of the contact point.
As a further improvement on the present invention, the ceramic member is provided with some annulars near the one side of the contact point
Groove.
As a further improvement on the present invention, the annular groove is centered on the axis of the push rod.
As a further improvement on the present invention, the ceramic member is provided with surface gold away from the one side of the contact point
The circular groove of categoryization, is additionally provided with a sleeve, the circular groove of the ceramic member and the sleeve weld, and the sleeve passes through screw thread
It is fixedly connected with described push rod one end.
The invention has the beneficial effects as follows：The D.C. contactor increased a ceramics on the contact chip between two contacts
Part, forces the length that electric arc extends in identical space to be elongated to original 2~3 times, just by it before electric arc is mutually connected
Extinguish, greatly improve the reverse make-break capacity of D.C. contactor.
Description of the drawings
Fig. 1 is cross-sectional view of the present invention；
Fig. 2 is ceramic member structural representation of the present invention；
Fig. 3 is another viewing angle constructions schematic diagrams of Fig. 2.
With reference to accompanying drawing, make the following instructions：
1 --- seal casinghousing 2 --- contact point
3 --- contact chip 4 --- push rods
5 --- ceramic member 6 --- sleeves
51 --- annular groove 52 --- circular grooves
Specific embodiment
With reference to accompanying drawing, the present invention is elaborated, but protection scope of the present invention is not limited to following embodiments, i.e., in every case
The simple equivalence changes made with scope of the present invention patent and description and modification, are all still belonged to patent of the present invention and are contained
Within the scope of lid.
As shown in Figure 1, 2, 3, a kind of D.C. contactor, including two contact points 2 in the seal casinghousing 1, contact chip 3 with
And reciprocating drive mechanism, the contact chip is fixed on the one end of push rod 4, and the reciprocal driving structure can drive the push rod past
It is multiple to move to connect and disconnect the contact chip simultaneously with two contact points, in the contact chip near the side of the contact point
A ceramic member 5 is fixedly provided with face.The setting of the ceramic member forces electric arc extension length in identical space, elongates most former
2~3 times for coming, just allow them to extinguish, so as to effectively improve the reverse make-break capacity of D.C. contactor before electric arc is mutually connected.
Preferably, the ceramic member is provided with some annular grooves 51 near the one side of the contact point, to increase electricity
The extended range of arc.
Preferably, the annular groove is centered on the axis of the push rod.
Preferably, the ceramic member is provided with the circular groove of a surface metalation away from the one side of the contact point
52, a sleeve 6, the circular groove of the ceramic member and the sleeve weld are additionally provided with, the sleeve is by screw thread and the push rod
One end is fixedly connected.Ceramic member side is provided with the circular groove of surface metalation, easily ceramic member to be fixed on into set
On cylinder, can be welded using high-temperature material.Make screw thread on sleeve and push rod respectively, sleeve and push rod are threaded connection fixation.
Claims (1)
1. a kind of D.C. contactor, drives including two contact points (2) in seal casinghousing (1), contact chip (3) and back and forth
Mechanism, the contact chip is fixed on push rod (4) one end, the reciprocal driving structure push rod can be driven to move back and forth with
The contact chip is connected and disconnected simultaneously with two contact points, it is characterised in that：In the contact chip near the contact point
A ceramic member (5) is fixedly provided with one side；It is recessed that the ceramic member is provided with some annulars near the one side of the contact point
Groove (51)；The annular groove is centered on the axis of the push rod；On one side of the ceramic member away from the contact point
The circular groove (52) of a surface metalation is provided with, a sleeve (6) is additionally provided with, the circular groove of the ceramic member is welded with the sleeve
Connect, the sleeve is fixedly connected by screw thread with described push rod one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026954.XA CN104795277B (en) | 2014-01-21 | 2014-01-21 | DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026954.XA CN104795277B (en) | 2014-01-21 | 2014-01-21 | DC contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104795277A CN104795277A (en) | 2015-07-22 |
| CN104795277B true CN104795277B (en) | 2017-05-17 |
Family
ID=53560016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410026954.XA Active CN104795277B (en) | 2014-01-21 | 2014-01-21 | DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104795277B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2681200C2 (en) * | 2017-04-10 | 2019-03-05 | федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный университет имени С.А. Есенина" | High-voltage relay |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2523012Y (en) * | 2002-02-07 | 2002-11-27 | 黎斌 | Small-sized D.C. electromagnetic on-off device |
| US7868720B2 (en) * | 2007-11-01 | 2011-01-11 | Tyco Electronics Corporation India | Hermetically sealed relay |
| CN101677044B (en) * | 2008-09-19 | 2011-12-28 | 厦门宏发电力电器有限公司 | High voltage DC vacuum relay with high reliability and long service life |
| KR101027544B1 (en) * | 2009-05-22 | 2011-04-07 | (주)록원 | Pellet boiler |
| JP2011228087A (en) * | 2010-04-19 | 2011-11-10 | Nippon Soken Inc | Electromagnetic relay |
| CN102592890B (en) * | 2012-02-20 | 2014-03-26 | 北京航空航天大学 | Non-polar hydrogen mixed gas DC (direct-current) arc extinction system for DC contactor |
| CN203707033U (en) * | 2014-01-21 | 2014-07-09 | 昆山国力真空电器有限公司 | DC contactor |
-
2014
- 2014-01-21 CN CN201410026954.XA patent/CN104795277B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104795277A (en) | 2015-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170117 Address after: Kunshan City, Suzhou City Shueisiou road 215300 Jiangsu province No. 1418 room 4 Applicant after: KUNSHAN GUOLI YUANTONG NEW ENERGY TECHNOLOGY CO., LTD. Address before: 215301 Kunshan, Jiangsu Development Zone, the Yangtze River Road, No. 179, No. Applicant before: Kunshan Guoli Vacuum Electric Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |