CN102262981B - Bipolar DC contactor - Google Patents
Bipolar DC contactor Download PDFInfo
- Publication number
- CN102262981B CN102262981B CN 201110003944 CN201110003944A CN102262981B CN 102262981 B CN102262981 B CN 102262981B CN 201110003944 CN201110003944 CN 201110003944 CN 201110003944 A CN201110003944 A CN 201110003944A CN 102262981 B CN102262981 B CN 102262981B
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- contact
- permanent magnet
- contactor
- arc
- room
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Abstract
The invention discloses a bipolar DC contactor, which overcomes the shortcomings of large volume and incapability of meeting the requirements of electric vehicles with small spaces in the prior art. The bipolar DC contactor comprises an electromagnetic mechanism and a contact system, wherein the contact system consists of wiring bolt type fixed contact and a moving contact component. Technical key points are that: a bridge contact in the moving contact component is sleeved on a cylinder of an above-contact support piece; a tension spring is arranged in a hole of a below-contact support piece; a permanent magnet with a heat insulation sleeve is fixed on a base under the bridge contact; a substrate is formed by integrating two monopolar DC contactor substrates as an arc quenching chamber; arc quenching gratings are arranged at the two ends of a contact room of the arc quenching chamber; and concentrating flux plates are inserted into the two sidewalls, corresponding to arc generation positions, of the contact room, and are in seamless absorption connection with the two ends of the permanent magnets respectively. Compared with like products, the product has a more compact and rational structural design and a small volume, can rise working voltage to 600V and meet the operating requirements of the novel electric vehicles, and makes a load safe after being powered off.
Description
Technical field
The present invention relates to a kind of low voltage switch, particularly a kind of employing is with the permanent magnet of the insulating sleeve the two poles of the earth D.C. contactor as the magnetic quenching element.Being mainly used in the electrical source exchange of electrocar and the forward and reverse change-over circuit of uninterruptible power system controls.
Background technology
Existing D.C. contactor is widely used in Electric Traction, and its kind is more, mostly is greatly 1 normally open contact, be mainly used in electrocar, battery driven vehicle starting, stop controlling with the power-switching circuit in the place such as electri forklift.General one pole (1P) arc control device have a contact room, and the two poles of the earth (2P) has two contact rooms.Traditional D.C. contactor mainly comprises pedestal and its interior electromagnet mechanism and the connection of control and contact of breaking current of assembling.Its structure is adopt the MZJ of former Soviet Union type series aviation contactor or carry out on this basis improved mostly.Such as in China Patent No. be 95232261.7,96202063.X, 02262973.4,200420037061.7,200520089587.4,200720105712.5,200720105713.X, the disclosed D.C. contactors such as 200720045041.8.Although these D.C. contactors are compared with traditional structure to a certain extent and are improved to some extent, for example in dynamic and static contact both sides, permanent magnet is set, makes the electric arc contact that blows off rapidly, because the contact room does not arrange arc control device with arc extinguishing grid pieces, if its operating voltage surpasses DC200V, will arcing more than.Due to the arc control device that do not arrange with arc extinguishing grid pieces, if its operating voltage surpasses DC200V, will arcing more than.For example Chinese patent application number is 200420063210.7 bipolar DC contactors, described arc control device have arranged arc extinguishing grid pieces, bridge type contact, fixed contact, permanent magnet are placed in bottom arc control device, can reach the requirement than high working voltage, but permanent magnet does not add overcoat antagonism high arc temperature, can cause the permanent magnet demagnetization.200720045041.8 the described arc control device of D.C. contactor, the arc extinguishing grid pieces of each breakpoint more than 8, can't adopt the relatively large product of this class volume for the very little electrocar in space.Therefore, the D.C. contactor of these low-voltage direct operations can't satisfy the requirement of electrocar.
Summary of the invention
The purpose of this invention is to provide a kind of the two poles of the earth D.C. contactor, the volume that it has solved the prior art existence is large, the defective that can't meeting spatial very little electrocar requires, product structure design is compacter, reasonable compared with similar products, volume is very little, operates steadily during the contact clutch, touch-safe is reliable, improves operating voltage and can reach 600V, contactor outage back loading is very safe, can satisfy the instructions for use of electric car.
the technical solution adopted in the present invention is: this two poles of the earth D.C. contactor comprises mainly by coil, yoke, the electromagnetic mechanism that magnetic pole seat and armature form, mainly by connection bolt formula fixed contact, moving contact component, base, the contact system that arc extinguishing grid pieces and pedestal form, its technical essential is: the bridge type contact in described moving contact component is sleeved on the cylinder of supporter on contact, in the hole of supporter, tensioning spring is set under contact, the permanent magnet of fixed band insulating sleeve on the described base below described bridge type contact, described pedestal is integrated as arc control device by two single-pole dc contact pedestals, described arc extinguishing grid pieces is arranged on the two ends in the contact room of described arc control device, insert magnetic conductive board in the two side of corresponding electric arc generation place in contact room, and the two ends of described permanent magnet are connected respectively with the seamless absorption of described magnetic conductive board.
The polarity of described permanent magnet distributes: the polarity of the first utmost point permanent magnet is N-S, and the polarity of the second utmost point permanent magnet is S-N.Positive source is connected to the first utmost point end of incoming cables.
advantage and good effect that the present invention has are: due to the bridge type contact blade in moving contact component of the present invention with on contact, lower support member, so operate steadily during with the fixed contact clutch, touch-safe is reliable, the pedestal that is integrated by two single-pole dc contact pedestals is as arc control device, and with the permanent magnet of insulating sleeve as the magnetic quenching element, the electric arc that produces between moving contact and fixed contact, in the magnetic field that forms because of the magnetic conductive board that is in permanent magnet the two poles of the earth, can rapidly electric arc be blown into the cooling arc extinguishing of arc control device, structural design is compacter compared with similar products, rationally, volume is very little, arc quenching effect is good.Because adopting the two poles of the earth to control, therefore operating voltage can be up to 600V, contactor outage back loading is very safe.Therefore, can satisfy the instructions for use of electric car.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is a kind of concrete structure schematic diagram of the present invention;
Fig. 2 is the end view of Fig. 1.
Sequence number explanation in figure: supporter, 15 magnetic conductive boards, 16 permanent magnets, 17 insulating sleeves, 18 main springs, 19 collars, 20 sleeves, 21 arc extinguishing grid pieces, 22 run-on tabs under supporter, 13 tensioning springs, 14 contacts on 1 coil, 2 yokes, 3 armature, 4 magnetic pole seats, 5 bases, 6 bridge type contacts, 7 pads, 8 push rods, 9 pedestals, 10 back-moving springs, 11 fixed contacts, 12 contacts.
Embodiment
Describe product structure of the present invention in detail according to Fig. 1～2.This two poles of the earth D.C. contactor comprises electromagnetic mechanism and two parts of contact system.Wherein electromagnetic mechanism comprises built-in with parts such as the yoke 2 of sleeve 20 coils 1, magnetic pole seat 4 in the coil rack endoporus and armature 3.Yoke 2 in electromagnetic mechanism is riveted on magnetic pole seat 4, makes coil 1, yoke 2, armature 3 become a black box with magnetic pole seat 4.Contact system comprises connection bolt formula fixed contact 11 and moving contact component.The silver alloy contact that is fastened on connection bolt formula fixed contact 11 on pedestal 9 is welded on the end of connection bolt.Moving contact component includes the parts such as the upper and lower supporter 12 of bridge type contact 6, contact, 14, tensioning spring 13, push rod 8, pad 7, collar 19, main spring 18 of two silver alloy contacts.Bridge type contact 6 in moving contact component is sleeved on the cylinder at supporter 12 two ends on contact, in the hole at supporter 14 two ends, tensioning spring 13 is housed respectively under contact, and its tension force acts directly on the middle part of bridge type contact 6.On contact under supporter 12 and contact supporter 14 use push rods 8 be serially connected, arrange between supporter 12 on the push rod 8 of back-moving spring 10 and contact at the top and regulate with pad 7, supporter 14 middle part suit main springs 18 under contact, and with collar 19, push rod 8 and main spring 18 are linked to be together.
The permanent magnet 16 of fixed band insulating sleeve 17 on the base 5 below 6 liang of terminal contacts of bridge type contact.Pedestal 9 is integrated by two single-pole dc contact pedestals, and this pedestal as arc control device, and is arranged on arc extinguishing grid pieces 21 at the two ends in each phase contact room of arc control device.Insert magnetic conductive board 15 in the two side of corresponding electric arc generation place in each phase contact room, and the two ends of permanent magnet 16 are connected with the seamless absorption of magnetic conductive board 15 respectively, formation interior permanent magnets magnetic quenching structure.When producing electric arc between the silver alloy contact of the silver alloy contact of the bridge type contact 6 in the contact room and fixed contact 11, in the magnetic field of electric arc because of magnetic conductive board 15 formation that are in permanent magnet 16 the two poles of the earth, fast electric arc is blown into the cooling arc extinguishing of arc control device.
With two screws, base 5 and pedestal 9 are linked together.The polarity of permanent magnet 16: the first N-S very, the second S-N very.Positive source is connected to the first utmost point end of incoming cables.
The installation of this two poles of the earth D.C. contactor, debugging and use are all basic identical with existing D.C. contactor.
Claims (2)
1. the two poles of the earth D.C. contactor, comprise mainly by coil, yoke, the electromagnetic mechanism that magnetic pole seat and armature form, mainly by connection bolt formula fixed contact, moving contact component, base, the contact system that arc extinguishing grid pieces and pedestal form, it is characterized in that: the bridge type contact in described moving contact component is sleeved on the cylinder of supporter on contact, in the hole of supporter, tensioning spring is set under contact, the permanent magnet of fixed band insulating sleeve on the described base below described bridge type contact, described pedestal is integrated as arc control device by two single-pole dc contact pedestals, described arc extinguishing grid pieces is arranged on the two ends in the contact room of described arc control device, insert magnetic conductive board in the two side of corresponding electric arc generation place in contact room, and the two ends of described permanent magnet are connected respectively with the seamless absorption of described magnetic conductive board.
2. the two poles of the earth according to claim 1 D.C. contactor, it is characterized in that: the polarity of described permanent magnet is distributed as: the polarity of the first utmost point permanent magnet is N-S, and the polarity of the second utmost point permanent magnet is S-N, and positive source is connected to the first utmost point end of incoming cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110003944 CN102262981B (en) | 2011-01-11 | 2011-01-11 | Bipolar DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110003944 CN102262981B (en) | 2011-01-11 | 2011-01-11 | Bipolar DC contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102262981A CN102262981A (en) | 2011-11-30 |
| CN102262981B true CN102262981B (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110003944 Expired - Fee Related CN102262981B (en) | 2011-01-11 | 2011-01-11 | Bipolar DC contactor |
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| Country | Link |
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| CN (1) | CN102262981B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105009248B (en) * | 2013-07-05 | 2017-05-31 | 富士电机株式会社 | Electromagnetic contactor |
| CN105914107B (en) * | 2016-06-22 | 2017-11-28 | 沈阳二一三控制电器制造有限公司 | A kind of contactor for connecting capacitive element |
| CN109256300B (en) * | 2018-11-14 | 2024-03-22 | 沈阳二一三控制电器制造有限公司 | Bipolar direct current contactor of nonpolar ceramic seal |
| CN110783147B (en) | 2019-09-29 | 2021-03-23 | 华为技术有限公司 | Direct current contactor and car |
| CN111146028A (en) * | 2020-01-15 | 2020-05-12 | 上海电器科学研究所（集团）有限公司 | Direct current contactor contact arc extinguishing system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4243249A1 (en) * | 1992-12-19 | 1994-06-23 | Abb Patent Gmbh | Electric switch device |
| CN2727944Y (en) * | 2004-08-02 | 2005-09-21 | 哈尔滨东大电工有限责任公司 | Bipolar DC contactor |
| DE102007053636B3 (en) * | 2007-11-08 | 2009-04-09 | Abb Ag | Electrical installation equipment e.g. circuit breaker, has opening receiving permanent magnet for producing alternating current or direct current glass device supporting arc guide during alternating current and direct current operations |
| CN201918324U (en) * | 2011-01-11 | 2011-08-03 | 沈阳二一三控制电器制造有限公司 | Dipolar direct-current contactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05298967A (en) * | 1992-04-24 | 1993-11-12 | Mitsubishi Electric Corp | Switch |
-
2011
- 2011-01-11 CN CN 201110003944 patent/CN102262981B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4243249A1 (en) * | 1992-12-19 | 1994-06-23 | Abb Patent Gmbh | Electric switch device |
| CN2727944Y (en) * | 2004-08-02 | 2005-09-21 | 哈尔滨东大电工有限责任公司 | Bipolar DC contactor |
| DE102007053636B3 (en) * | 2007-11-08 | 2009-04-09 | Abb Ag | Electrical installation equipment e.g. circuit breaker, has opening receiving permanent magnet for producing alternating current or direct current glass device supporting arc guide during alternating current and direct current operations |
| CN201918324U (en) * | 2011-01-11 | 2011-08-03 | 沈阳二一三控制电器制造有限公司 | Dipolar direct-current contactor |
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| Publication number | Publication date |
|---|---|
| CN102262981A (en) | 2011-11-30 |
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Granted publication date: 20130619 Termination date: 20200111 |