CN105914107A - Contactor connected with capacitive element - Google Patents
Contactor connected with capacitive element Download PDFInfo
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- CN105914107A CN105914107A CN201610457504.5A CN201610457504A CN105914107A CN 105914107 A CN105914107 A CN 105914107A CN 201610457504 A CN201610457504 A CN 201610457504A CN 105914107 A CN105914107 A CN 105914107A
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- Prior art keywords
- contact
- main
- precharge
- static contact
- groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a contactor connected with a capacitive element, which comprises a main contact group, an arc quenching chamber, a pushing mechanism, resistors, a pre-charging contact group and an electromagnetic mechanism, wherein the main contact group comprises a main moving contact and a main static contact; the pre-charging contact group comprises a pre-charging moving contact and a pre-charging static contact; the pre-charging contact group is serially connected with the resistor and then parallelly connected with the main contact group; after the electromagnetic mechanism is power-on, the pushing mechanism pushes the main moving contact to move towards the main static contact, and at the same time, the pushing mechanism pushes the pre-charging moving contact to move towards the pre-charging static contact; and the distance between the main moving contact and the main static contact is larger than the distance between the pre-charging moving contact and the pre-charging static contact. The contactor designed by the invention has a compact and reasonable structure and a small size, and can meet development requirements of a charging pile and a novel high-power electric vehicle.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, be specifically related to a kind of catalyst connecting capacitive element.
Background technology
Existing single-pole dc contact, is mainly used in electric automobile, electri forklift, the startup of battery driven vehicle, stopping and power-switching circuit and controls.Traditional D.C. contactor mainly includes pedestal, controls to connect and the operating mechanism such as the contact of disjunction circuit and electric magnet, and its structure is that to use former Soviet Union MZJ type series aerospace catalyst or its modified model, such as China Patent No. be the disclosed D.C. contactor such as 200420037061.7,200520089587.4,20072015712.5,200720105713.X and 200720045041.8 mostly.And in these existing single-pole dc contacts, generally by arranging permanent magnet in contact both sides, make electric arc blow off rapidly contact, but the running voltage of this kind of D.C. contactor is the highest.
And electromagnetic type bipolar DC contactor of the prior art is mainly used in electric motor coach, its running voltage can reach 750V, it is possible to meets the requirement of battery operating voltage 600V.Although the functional reliability of this D.C. contactor is the highest, arc extinction performance is good, but there is also the shortcoming that volume is bigger, although be widely used on electric motor coach and electric car, but can not meet electric automobile and day by day require the requirement of vehicle mounted electrical apparatus miniaturization.
nullIn recent years，The D.C. contactor on electric automobile and electricity vapour hybrid electric vehicle has the most been used to have air blowout electromagnetic type single-pole dc contact and LEV series two kinds of products of hydrogen and nitrogen gas arc extinguishing single-pole dc contact of Patent No. 201110003944.0，Although the requirement of battery operated 320V can be met，But owing to electromagnetic mechanism is the barrel-shaped yoke in employing garden and garden plate shaped magnetic conduction flat board piston structure，Plate shaped magnetic conduction flat board surrounding yoke barrel-shaped with garden surrounding in garden uses small-gap suture to coordinate，With central core、Flux sleeve bucket、It is bigger that armature constitutes magnetic loop leakage field undoubtedly，Suction can not be supported to install the demand such as precharge contactor and auxiliary contact，Prior art does not the most provide the direct current inflation catalyst with precharge contactor and auxiliary contact，Charging pile can not be met、Electric automobile develops further and proposes high performance requirement.
Summary of the invention
In order to solve the deficiency that prior art exists, the invention provides a kind of catalyst connecting capacitive element, described catalyst is by arranging cooperating of precharge contactor group and pushing mechanism therein, realize the pre-charging functions to electric capacity, possesses the catalyst of this precharge contactor group, not only design structure is more reasonable, running voltage one pole reaches 900V, control motor power (output) and reach more than 120KW, Development of Electric Vehicles can be met and increase the requirement of power, can preferably be applicable to the dynamical system of electric automobile.
The technical solution used in the present invention is:
A kind of catalyst connecting capacitive element, including main contact group, arc-chutes, pushing mechanism, resistance, precharge contactor group and electromagnetic mechanism,
Described main contact group includes actively contact and main static contact pedestal；
Described precharge contactor group includes being pre-charged moving contact and precharge static contact；
Described precharge contactor group is in parallel with described main contact group with after described resistant series；
After the energising of described electromagnetic mechanism, described pushing mechanism promotes described active contact to move to described main static contact, and the most described pushing mechanism promotes described precharge moving contact to move to described precharge static contact；
Distance between described active contact and described main static contact is more than the distance between described precharge moving contact and described precharge static contact.
Further, described pushing mechanism includes push rod and the active contact being arranged on described push rod, and described push rod is provided with the first draw-in groove, the second draw-in groove and the 3rd draw-in groove.
Further, the upper end of described push rod is provided with compression spring, and described compression spring is arranged on described first draw-in groove by split washer and plain washer, and withstands between described first draw-in groove and described main static contact pedestal.
Further, described active contact is located between the first spring base and the second spring base, described active contact is inserted in described push rod by described first spring base and the second spring base, described active contact can on described push rod relative motion, the described lower end of the second spring base is connected with one end of touch spring, and the other end of described touch spring is fixed on the second draw-in groove of described push rod by plain washer and split washer.
Further, between described second draw-in groove and the 3rd draw-in groove, be provided with supporter, described supporter be provided above adjustable column, the lower section of described supporter is fixed on described 3rd draw-in groove by plain washer, elastic washer, plain washer and split washer.
Further, described supporter be provided above wiring board, described wiring board is sleeved on described push rod by the through hole being provided with in the middle of it, described wiring board is arranged between described arc-chutes and electromagnetic mechanism, described precharge static contact is arranged on described wiring board, described precharge moving contact is arranged on described supporter, and described precharge static contact and described precharge moving contact partner precharge switch.
Further, one end of described precharge static contact is connected with one end of described resistance, and the other end of described resistance is fixed on described wiring board.
Further, described arc-chutes include main arc extinguishing room and two secondary arc extinguishing rooms being separately positioned on both sides, main arc extinguishing room, the top center in described main arc extinguishing room is provided with centre bore, the both sides of described centre bore are provided with static contact through hole, the two ends in described main arc extinguishing room are each provided with a groove, and two described grooves make two described secondary arc extinguishing rooms be connected with main arc extinguishing room respectively.
Further, described electromagnetic mechanism includes upper conduction magnetic board, lower magnetic conductive board, iron core, armature, coil and two circular arc yoke plates, described upper conduction magnetic board and described lower magnetic conductive board phase riveting are clamped by two described circular arc yoke plates by the folder riveting of two-way countersunk head, and described coil is arranged on the central authorities of Liang Ge garden arc yoke plate.
Further, the inside of described arc-chutes is full of by nitrogen.
The invention have the benefit that the present invention proposes to control capacitive load for the first time, pre-charge-relay is no longer used to add big electric current when 50 Ω resistance start to charge up for limiting capacitance device, for up to the traditional method of 100ms, the method that pair contact of proposition main contactor itself replaces pre-charge-relay.
A kind of catalyst connecting capacitive element is devised by the present invention, it is as the precharge switch to electric capacity using precharge contactor group, after electromagnetic mechanism energising, pushing mechanism promotes actively contact to move to main static contact, and described pushing mechanism promotes precharge moving contact to precharge static contact motion；Owing to the distance between active contact and main static contact is more than the distance between precharge moving contact and precharge static contact, the precharge contactor making series limiting resistor is first connected, then main contact group Guan Bi, the work of this catalyst is the most safe and reliable, and can reduce one pre-charge-relay of control system of electric automobile, resistor and control program thereof.
The present invention is in garden cylindricality electromagnetic mechanism structure designs, use plate type electromagnetic system bidirectional countersunk head folder riveting technology for the first time, magnetic Circuit Design is made to reach seamless link, structure is compacter, reasonable, volume is little, suction is big, make electric automobile and inflate catalyst with the direct current of charging pile, can have pre-charging device (including built-in resistor device) and auxiliary contact group simultaneously, can extensively meet charging pile and the demand of novel high-power Development of Electric Vehicles.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of single-pole dc contact of present example embodiment；
Fig. 2 is the top view of a kind of single-pole dc contact of present example embodiment；
Fig. 3 is the front view of the main static contact pedestal of present example embodiment；
Fig. 4 is the top view of the main static contact pedestal of present example embodiment；
Fig. 5 is the structural representation of the arc-chutes of present example embodiment；
Fig. 6 is the structural representation of the pushing mechanism of present example embodiment；
Fig. 7 is the structural representation of the wiring board of present example embodiment；
Fig. 8 is the front view of the electromagnetic mechanism of present example embodiment；
Fig. 9 is the top view of the electromagnetic mechanism of present example embodiment.
In figure: 1-main static contact pedestal, 1.1-static contact, 1.2-permanent magnet, 1.3-magnetic conduction pole plate, 1.4-circle flat board, 1.5-instrument connection, 1.6-air-filled pore;
2-pushing mechanism, 2.1-push rod, 2.2-the first split washer, 2.3-the first plain washer, 2.4-the first spring base, 2.5-moving contact, 2.6-the second spring base, 2.7-touch spring, 2.8-the second plain washer, 2.9-the second split washer, 2.10-adjustable column, 2.11-supporting assembly, 2.12-the 3rd plain washer, 2.13-elastic washer, 2.14-the 4th plain washer, 2.15-the 3rd split washer, 2.16-compression spring；
3-arc-chutes, 3.1-cover plate, 3.2-main arc extinguishing room, the secondary arc extinguishing room of 3.3-first, the secondary arc extinguishing room of 3.4-second, 3.5-centre bore, 3.6-static contact through hole, 3.7-the first groove, 3.8-the second groove；
4-precharge contactor group, 4.1-wiring board, 4.2-is pre-charged static contact, 4.3-resistance, and 4.4-assists normally opened static contact；
5-electromagnetic mechanism, 5.1-coil, magnetic conductive board under 5.2-, 5.3-circular arc yoke plate, the two-way sunk head rivet of 5.4-, 5.5-armature, 5.6-upper conduction magnetic board, 5.7-magnetism isolating spacer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of catalyst connecting capacitive element, including main static contact pedestal 1, pushing mechanism 2, arc-chutes 3, resistance 4.3, precharge contactor group 4 and electromagnetic mechanism 5, main static contact pedestal 1 includes circular flat board 1.4, it is provided with air-filled pore 1.6 on circular flat board 1.4, the center of circular flat board 1.4 is provided with instrument connection 1.5, and two active contacts 2.5 are symmetricly set on the horizontal center line of circular flat board 1.4.
As shown in Figures 3 and 4, the lower section on circular flat board 1.4 surface is provided with permanent magnet 1.2, main static contact 1.1 is through permanent magnet 1.2, the both sides of permanent magnet 1.2 are respectively connected with one end of a magnetic conduction pole plate 1.3, two magnetic conduction pole plates 1.3 are inserted in arc-chutes 3, magnetic conduction pole plate 1.3 and permanent magnet 1.2 seamless link.
As shown in Figure 5, arc extinguishing chamber cap 3.1 it is provided with below arc-chutes 3, arc-chutes 3 include main arc extinguishing room 3.2 and two the first secondary arc extinguishing room 3.3 and the second secondary arc extinguishing rooms 3.4 being separately positioned on both sides, main arc extinguishing room 3.2, the top center in main arc extinguishing room 3.2 is provided with centre bore 3.5, the both sides of centre bore 3.5 are provided with static contact through hole 3.6, the two ends in main arc extinguishing room 3.2 are respectively arranged with the first groove 3.7 and the second groove 3.8, and the first groove 3.7 and the second groove 3.8 make the first secondary arc extinguishing room 3.3 and the second secondary arc extinguishing room 3.4 be connected with main arc extinguishing room 3.2 respectively.
As shown in Figure 6, pushing mechanism 2 includes push rod 2.1 and the active contact 2.5 being arranged on push rod 2.1, and in actively contact 2.5 is arranged on main arc extinguishing room, the upper end of push rod 2.1 is inserted in the circular hole being located in the middle of circular flat board；The first draw-in groove, the second draw-in groove and the 3rd draw-in groove it is provided with on push rod 2.1, the upper end of push rod 2.1 is provided with compression spring 2.16, compression spring 2.16 is arranged on the first draw-in groove by the first split washer 2.2 and the first plain washer 2.3, and withstands between the first draw-in groove and main static contact pedestal 1；Actively contact 2.5 is located between the first spring base and the second spring base, actively contact 2.5 is inserted in push rod 2.1 by the first spring base 2.4 and the second spring base 2.6, actively contact 2.5 can on push rod 2.1 relative motion, the lower end of the second spring base 2.6 is connected with one end of touch spring 2.7, and the other end of touch spring 2.7 is fixed on the second draw-in groove of push rod 2.1 by the second plain washer 2.8 and the second split washer 2.9；It is provided with supporter 2.11 between second draw-in groove and the 3rd draw-in groove, supporter 2.11 be provided above adjustable column 2.10, the lower section of supporter 2.11 is fixed on the 3rd draw-in groove by the 3rd plain washer 2.12, elastic washer the 2.13, the 4th plain washer 2.14 and the 3rd split washer 2.15；Supporter 2.11 be provided above wiring board 4.1, wiring board 4.1 is sleeved on push rod 2.1 by the through hole being provided with in the middle of it, and wiring board 4.1 is arranged between arc-chutes 3 and electromagnetic mechanism 5.
As it is shown in fig. 7, precharge static contact 4.2 and assist normally opened static contact 4.4 to be arranged on wiring board 4.1, precharge moving contact and assist normally opened moving contact to be arranged on supporter 2.11, precharge static contact 4.2 and precharge moving contact partner precharge switch；Precharge static contact 4.2 is in parallel with main contact group 1.1 after connecting with resistance 4.3；One end of precharge static contact 4.2 is connected with one end of resistance 4.3, the other end of resistance 4.3 is fixed on wiring board 4.1, wiring board 4.1 welds the first lead-out wire, at precharge static contact 4.2, welds the second lead-out wire, the first lead-out wire and the second lead-out wire be connected with main static contact 1.1.
As shown in FIG. 8 and 9, electromagnetic mechanism 5 includes upper conduction magnetic board 5.6, lower magnetic conductive board 5.2, coil 5.1 and two blocks of yoke plates 5.3, upper conduction magnetic board 5.6 and lower magnetic conductive board 5.2 are folded riveting by two-way sunk head rivet 5.4 by two blocks of yoke plates 5.3, two yoke plates 5.3 are separately positioned on upper conduction magnetic board 5.6 and the two ends of lower magnetic conductive board 5.2, yoke plate 5.3 is circular arc, coil 5.1 is arranged on the centre of two blocks of yoke plates 5.3, armature 5.5 it is provided with in coil 5.1, armature 5.5 be provided above magnetism isolating spacer 5.7, in the circular hole that the lower end of push rod 2.1 is middle with the upper conduction magnetic board of electromagnetic mechanism 5, and contact with magnetism isolating spacer 5.7.
After electromagnetic mechanism 5 is energized, pushing mechanism 2 promotes actively contact 2.5 to move to main static contact 1.1, and described pushing mechanism 2 promotes precharge moving contact 4.1 to move to precharge static contact 4.2；Owing to the distance between active contact 2.5 and main static contact 1.1 is more than the distance between precharge moving contact 4.1 and precharge static contact 4.2, precharge moving contact 4.1 is made first to connect with precharge static contact 4.2, carry out the precharge of capacitor, then actively contact 2.5 and main static contact 1.1 close, the work of this catalyst is very reliable, stops main contact group and connects melting welding.
Above-described embodiment is only used for further illustrating a kind of catalyst connecting capacitive element of the present invention; but the invention is not limited in embodiment; every any simple modification, equivalent variations and modification made above example according to the technical spirit of the present invention, each falls within the protection domain of technical solution of the present invention.
Claims (10)
1. connect a catalyst for capacitive element, including main contact group, arc-chutes, pushing mechanism, resistance, precharge contactor group and electromagnetic mechanism,
Described main contact group includes actively contact and main static contact pedestal；
Described precharge contactor group includes being pre-charged moving contact and precharge static contact；
Described precharge contactor group is in parallel with described main contact group with after described resistant series；
It is characterized in that, after the energising of described electromagnetic mechanism, described pushing mechanism promotes described active contact to move to described main static contact, and the most described pushing mechanism promotes described precharge moving contact to move to described precharge static contact；
Distance between described active contact and described main static contact is more than the distance between described precharge moving contact and described precharge static contact.
A kind of catalyst connecting capacitive element the most according to claim 1, it is characterised in that described pushing mechanism includes push rod and the active contact being arranged on described push rod, and described push rod is provided with the first draw-in groove, the second draw-in groove and the 3rd draw-in groove.
A kind of catalyst connecting capacitive element the most according to claim 2, it is characterized in that, the upper end of described push rod is provided with compression spring, described compression spring is arranged on described first draw-in groove by split washer and plain washer, and withstands between described first draw-in groove and described main static contact pedestal.
A kind of catalyst connecting capacitive element the most according to claim 2, it is characterized in that, described active contact is located between the first spring base and the second spring base, described active contact is inserted in described push rod by described first spring base and the second spring base, described active contact can on described push rod relative motion, the described lower end of the second spring base is connected with one end of touch spring, and the other end of described touch spring is fixed on the second draw-in groove of described push rod by plain washer and split washer.
A kind of catalyst connecting capacitive element the most according to claim 2, it is characterized in that, it is provided with supporter between described second draw-in groove and the 3rd draw-in groove, described supporter be provided above adjustable column, the lower section of described supporter is fixed on described 3rd draw-in groove by plain washer, elastic washer, plain washer and split washer.
A kind of catalyst connecting capacitive element the most according to claim 5, it is characterized in that, described supporter be provided above wiring board, described wiring board is sleeved on described push rod by the through hole being provided with in the middle of it, described wiring board is arranged between described arc-chutes and electromagnetic mechanism, described precharge static contact is arranged on described wiring board, and described precharge moving contact is arranged on described supporter, and described precharge static contact and described precharge moving contact partner precharge switch.
A kind of catalyst connecting capacitive element the most according to claim 6, it is characterised in that one end of described precharge static contact is connected with one end of described resistance, and the other end of described resistance is fixed on described wiring board.
The most according to claims 1 to 7 any connects the catalyst of capacitive element, it is characterized in that, described arc-chutes include main arc extinguishing room and two secondary arc extinguishing rooms being separately positioned on both sides, main arc extinguishing room, the top center in described main arc extinguishing room is provided with centre bore, the both sides of described centre bore are provided with static contact through hole, the two ends in described main arc extinguishing room are each provided with a groove, and two described grooves make two described secondary arc extinguishing rooms be connected with main arc extinguishing room respectively.
The most according to claims 1 to 7 any connects the catalyst of capacitive element, it is characterized in that, described electromagnetic mechanism includes upper conduction magnetic board, lower magnetic conductive board, iron core, armature, coil and two circular arc yoke plates, described upper conduction magnetic board and described lower magnetic conductive board phase riveting are clamped by two described circular arc yoke plates by the folder riveting of two-way countersunk head, and described coil is arranged on the central authorities of Liang Ge garden arc yoke plate.
The most according to claims 1 to 7 any connects the catalyst of capacitive element, it is characterised in that the inside of described arc-chutes is full of by nitrogen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610457504.5A CN105914107B (en) | 2016-06-22 | 2016-06-22 | A kind of contactor for connecting capacitive element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457504.5A CN105914107B (en) | 2016-06-22 | 2016-06-22 | A kind of contactor for connecting capacitive element |
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| CN105914107A true CN105914107A (en) | 2016-08-31 |
| CN105914107B CN105914107B (en) | 2017-11-28 |
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| CN201610457504.5A Active CN105914107B (en) | 2016-06-22 | 2016-06-22 | A kind of contactor for connecting capacitive element |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379997A (en) * | 2017-08-04 | 2017-11-24 | 宣城市飞诚环保科技有限公司 | A kind of new-energy automobile device |
| CN109256300A (en) * | 2018-11-14 | 2019-01-22 | 沈阳二三控制电器制造有限公司 | A kind of nonpolarity ceramic seal bipolar DC contactor |
| CN113936963A (en) * | 2021-10-20 | 2022-01-14 | 沈阳二一三控制电器制造有限公司 | Contact assembly and direct current contactor |
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| DE3743244A1 (en) * | 1987-12-19 | 1989-06-29 | Asea Brown Boveri | Switching apparatus arrangement for connecting and disconnecting capacitors |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107379997A (en) * | 2017-08-04 | 2017-11-24 | 宣城市飞诚环保科技有限公司 | A kind of new-energy automobile device |
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| CN109256300A (en) * | 2018-11-14 | 2019-01-22 | 沈阳二三控制电器制造有限公司 | A kind of nonpolarity ceramic seal bipolar DC contactor |
| 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 |
| CN113936963A (en) * | 2021-10-20 | 2022-01-14 | 沈阳二一三控制电器制造有限公司 | Contact assembly and direct current contactor |
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| CN105914107B (en) | 2017-11-28 |
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