CN2727944Y - Bipolar DC contactor - Google Patents
Bipolar DC contactor Download PDFInfo
- Publication number
- CN2727944Y CN2727944Y CN 200420063210 CN200420063210U CN2727944Y CN 2727944 Y CN2727944 Y CN 2727944Y CN 200420063210 CN200420063210 CN 200420063210 CN 200420063210 U CN200420063210 U CN 200420063210U CN 2727944 Y CN2727944 Y CN 2727944Y
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- China
- Prior art keywords
- contact
- arc
- coil
- magnetic
- bipolar
- 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.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 3
- 238000010891 electric arc Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000003042 antagnostic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a bipolar direct current contactor, which is a bipolar direct current contactor with advanced technology, reliable action, simple structure, novel appearance, large capacity, small volume and light weight. The utility model discloses its characteristics lie in: the three parts such as contact part, electromagnetic mechanism, arc extinguishing system are had in its constitution, and the contact part adopts the double breakpoint contact structure of direct action formula: the bridge contact 25 is pressed by a spring 26 in the guide groove of the contact support 2; the static contact 24 is clamped in the arc extinguish chamber 6, and the electromagnetic mechanism adopts a solenoid-shaped direct-acting magnetic circuit; a coil 11 is arranged in the yoke 20, an iron core 12 is arranged in a central round hole of the coil 11, and an armature 9 is arranged at the upper end of the iron core 12; a voltage suppressor 18 is connected to the terminals of the coil 11. The bridge type contact 25 and the static contact [ 24 ], the ladder-shaped permanent magnet 22 is placed at the bottom of the arc extinguish chamber 6, the iron magnetic guide plate 5 is arranged outside the permanent magnet 22, the arc striking piece 23 is tightly installed outside the static contact 24, and the movable contact bridge 27 is shaped like the arc striking long arm of a goose neck. The voltage suppressor 18 includes a current limiting resistor 29 and a freewheeling diode 30.
Description
Technical field:
The utility model belongs to a kind of electric switch operating mechanism that the contact is arranged, and is applicable in the control circuit of passenger train, can be used for connection and the disjunction bipolar DC contactor than the various loads of the following work of High Level DC Voltage (DC 600V) state.
Technical background:
D.C. contactor is a critical component of realizing that the DC circuit operation is controlled, requires the reliable of contactor to disconnect fast, and installing and dismantle should be easy, quick.
Summary of the invention:
The utility model purpose is to disclose a kind of bipolar DC contactor, be a kind of advanced technology, reliable in action, simple in structure, outward appearance is novel, capacity is big, volume is little, lightweight bipolar DC contactor.
Its characteristics of the utility model are:
Its composition has three parts such as contact part, electromagnetic mechanism, arc quenching system, and contact partly adopts Direct Action Type double break contact structure: bridge type contact 25 and fixed contact (24), bridge type contact 25 are pressed in the gathering sill of contact supporter 2 by spring 26; Fixed contact 24 is clamped within the arc control device 6, and electromagnetic mechanism adopts the magnetic circuit of solenoid shape Direct Action Type; Coil 11 is equipped with in Yoke iron 20 inside, and iron core 12 is housed in the center hole of coil 11, and armature 9 is equipped with in 12 upper ends unshakable in one's determination; Connect voltage suppressor 18 on the terminals of coil 11.
Its characteristics of the utility model also are, trapezoidal permanent magnet 22 places the bottom of arc control device 6, at the outside of permanent magnet 22 device irony draw magnetic sheet 5, by drawing magnetic sheet 5 magnetic field force is scattered in an equidistant magnetic field along arc extinguishing grid pieces 28, make to attract the magnetic line of force of arc evenly to distribute; The magnetic field gravitational attraction electric arc that this permanent magnet forms leaves contact 24,25 fast and extinguishes very soon among entering arc extinguishing grid pieces 28, guarantees that the fast and reliable of DC circuit disconnects.
Its feature of the utility model also is striking sheet 23 of fixed contact 24 outside close installation, and the striking of movable contact bridge 27 shapes such as gooseneck boom neck is long-armed.This striking effect long-armed and the striking sheet is: when the electric arc that is produced when dynamic and static contact disconnects outwards moves under the magnetic attraction of permanent magnet 22, the arc root of electric arc shifts out surface driven, fixed contact 24,25 fast, the arc root will outwards move apace along the surface of striking long-armed 27 and striking sheet 23, extinguish in entering arc extinguishing grid pieces 28.Guarantee not and can not move and contact is produced excessive scaling loss owing to the arc root is stuck in dynamic and static contact surface.
Its characteristics of the utility model also are described voltage suppressor 18, comprise current-limiting resistance 29 and fly-wheel diode 20.
Description of drawings
Fig. 1 is a full section structural representation of the present utility model;
Fig. 2 looks the contour structures schematic diagram for master of the present utility model;
Fig. 3 is the circuit diagram of voltage suppressor of the present utility model.
Embodiment:
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, technical solution of the present utility model is: the bipolar DC contactor is made up of three parts such as contact part, electromagnetic mechanism, arc quenching system.
Contact partly comprises bridge type contact 25 and fixed contact 24.The bridge type contact is made of moving contact 25 and contact bridge 27, and bridge type contact 25 is pressed in leading of contact supporter 2 by spring 26 and is in movable state in the inside groove; Fixed contact 24 is fixed in the groove of two arc-extinguish chambers 6 by two side chuckings of contact plate 21, and two arc-extinguish chamber 6 usefulness screws 4 clamp.The tail end spinning terminal screw group 10 of contact plate 21 is used for drawing and connects the external circuit lead.Electromagnetic mechanism adopts solenoid shape Direct Action Type magnetic circuit.The same hole at Yoke iron 20 centers is positioned at its centre with coil 11, and negative 16 and the Yoke iron 20 of magnetic Yoke rivet together, and coil rack 19 are fixed on the centre of base plate 16.The negative 16 usefulness screws 13 of Yoke iron are fixed on the centre that base plate 14 is installed.12 usefulness screws 15 unshakable in one's determination are fixed on the center hole inside of base plate 16 and the coil 11 of magnetic Yoke.Armature 9 is connected in the groove of contact supporter 2, and the pole-face of armature partly extend among the center hole of coil 11, and armature 9 and magnetic partly constitute the magnetic circuit of a sealing.Guide housing 1 usefulness screw 7 is fixed on the top of Yoke iron 20.Connect voltage suppressor 18 between the binding post of coil 11; Voltage suppressor 18 comprises current-limiting resistance 29 and fly-wheel diode 30.
The utility model novel structure, reliable in action, volume are little, in light weight, and its electric property, vibration resistance, fire resistance, temperature characterisitic have have all met or exceeded the requirement of railway electrical equipment standard techniques.On the available iron road vehicles, also can be used in electric power, communications and transportation, the industrial automation control system.
Main circuit of the present utility model inserts through terminal screw group 10, electric current flows to fixed contact 24 through terminal block 21, is switched on or switched off through bridge type contact 25, terminal screw group 10 output on the quiet contact plate 21 of opposite side, thus controlled the conducting of main circuit or opened circuit.
Operating state of the present utility model is when the signal of telecommunication enters coil 11 via terminal block 17, produce magnetic field behind the coil electricity, the magnetic line of force in this magnetic field constitutes a solenoidal electromagnetic attraction through the magnetic circuit of magnetic Yoke 20, magnetic Yoke base plate 16, a sealing of 12 back formation unshakable in one's determination; Under the attraction of this magnetic force, after armature 8 drive contact supporters 2 overcame the elastic force of antagonistic spring 3, the end face motion to unshakable in one's determination 12 had been finished the closing course of magnetic circuit until closure.Under the pulling of armature 9, contact supporter 2 is closed fully until dynamic and static contact to the direction motion of fixed contact 24 with the bridge type contact 25 that is installed in its gathering sill.This moment, this contactor was in running order, had realized the connection of circuit.
When the signal of telecommunication in the control circuit is cancelled, there is not electric current to pass through in the coil 11, the magnetic field in the coil disappears.Because do not have the attraction of magnetic force, under the elastic force of antagonistic spring 3, armature 9 pops up; Under the drive of armature, bridge type contact 25 also pops up, and has broken away from fixed contact 24.Dynamic and static contact has produced electric arc when disconnecting, electric arc is among the arc extinguishing grid pieces 28 that the magnetic field of permanent magnet 22 graviational interaction F7 electric arc outwards moves to arc control device 6 along the striking arm and the striking sheet 28 of contact bridge 27, extinguish very soon in the isolation of arc extinguishing grid pieces 28 and the F electric arc of cooling effect, finished the disconnection process of main circuit, this moment, this contactor was in halted state.
When the cancellation of the control signal of telecommunication, coil blackout, to produce very high-tension self-induction electromotive force at coil two ends, this electromotive force discharges by current-limiting resistance 29 on the voltage suppressor 18 and fly-wheel diode 30, suppressed self-induction top electromotive force effectively, and make the time of D.C. contactor release delay shorten dramatically, make this contactor to disconnect fast.
Claims (4)
1. bipolar DC contactor, its characteristics are:
Its composition has three parts such as contact part, electromagnetic mechanism, arc quenching system, contact partly adopts Direct Action Type double break contact structure: bridge type contact (25) and fixed contact (24), and bridge type contact (25) is pressed in the gathering sill of contact supporter (2) by spring (26); Fixed contact (24) is clamped within the arc control device (6), and electromagnetic mechanism adopts the magnetic circuit of solenoid shape Direct Action Type; Coil (11) is equipped with in Yoke iron (20) inside, and iron core (12) is housed in the center hole of coil (11), and armature (9) is equipped with in (12) unshakable in one's determination upper end; Connect voltage suppressor (18) on the terminals of coil (11).
2, the bipolar DC contactor described in claim 1, its characteristics are that trapezoidal permanent magnet (22) places the bottom of arc control device (6), at the outside device of permanent magnet (22) irony draw magnetic sheet (5), by drawing magnetic sheet (5) magnetic field force is scattered in an equidistant magnetic field along arc extinguishing grid pieces (28), makes to attract the magnetic line of force of arc evenly to distribute; The magnetic field gravitational attraction electric arc that this permanent magnet forms leaves contact (24) fast, extinguish among entering arc extinguishing grid pieces (28) very soon (25), guarantees that the fast and reliable of DC circuit disconnects.
3, bipolar DC contactor described in claim 1, it is characterized in that fixed contact (a 24) outside striking sheet of close installation (23), the striking of movable contact bridge (27) shape such as gooseneck boom neck is long-armed, this striking effect long-armed and the striking sheet is: when moving, when the electric arc that fixed contact is produced when disconnecting outwards moves under the magnetic attraction of permanent magnet (22), the arc root of electric arc is with driven, fixed contact (24), (25) shift out fast on surface, the arc root will long-armed along striking (27) and the surface of striking sheet (23) outwards move apace, extinguish in entering arc extinguishing grid pieces (28), guaranteeing can be owing to the arc root is stuck in moving, the fixed contact surface is not moved and contact is produced excessive scaling loss.
4, the bipolar DC contactor described in claim 1, its characteristics are described voltage suppressor (18), comprise current-limiting resistance (29) and fly-wheel diode (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063210 CN2727944Y (en) | 2004-08-02 | 2004-08-02 | Bipolar DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063210 CN2727944Y (en) | 2004-08-02 | 2004-08-02 | Bipolar DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727944Y true CN2727944Y (en) | 2005-09-21 |
Family
ID=35043956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063210 Expired - Fee Related CN2727944Y (en) | 2004-08-02 | 2004-08-02 | Bipolar DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727944Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157295A (en) * | 2011-03-12 | 2011-08-17 | 贵州天义电器有限责任公司 | Control element of direct current high voltage loop system |
| CN102262979A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Arc extinguishing device of direct contactor |
| CN102262985A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Multipolar DC molded case circuit breaker |
| CN102262981A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Bipolar DC contactor |
| CN102436975A (en) * | 2011-10-06 | 2012-05-02 | 武汉长海电气科技开发有限公司 | Bipolar DC contactor |
| CN102592887A (en) * | 2011-01-11 | 2012-07-18 | 沈阳二一三控制电器制造有限公司 | Multipole direct-current contactor |
| CN110783147A (en) * | 2019-09-29 | 2020-02-11 | 华为技术有限公司 | Direct current contactor and car |
| CN118098881A (en) * | 2024-04-29 | 2024-05-28 | 深圳市长天智能有限公司 | Contactor and arc extinguishing device thereof |
-
2004
- 2004-08-02 CN CN 200420063210 patent/CN2727944Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262979A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Arc extinguishing device of direct contactor |
| CN102262985A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Multipolar DC molded case circuit breaker |
| CN102262981A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Bipolar DC contactor |
| CN102592887A (en) * | 2011-01-11 | 2012-07-18 | 沈阳二一三控制电器制造有限公司 | Multipole direct-current contactor |
| CN102262981B (en) * | 2011-01-11 | 2013-06-19 | 沈阳二一三控制电器制造有限公司 | Bipolar DC contactor |
| CN102262985B (en) * | 2011-01-11 | 2014-02-26 | 沈阳二一三控制电器制造有限公司 | Multipolar DC molded case circuit breaker |
| CN102592887B (en) * | 2011-01-11 | 2014-03-19 | 沈阳二一三控制电器制造有限公司 | Multipole direct-current contactor |
| CN102157295A (en) * | 2011-03-12 | 2011-08-17 | 贵州天义电器有限责任公司 | Control element of direct current high voltage loop system |
| CN102436975A (en) * | 2011-10-06 | 2012-05-02 | 武汉长海电气科技开发有限公司 | Bipolar DC contactor |
| CN102436975B (en) * | 2011-10-06 | 2014-04-30 | 武汉长海电气科技开发有限公司 | Bipolar DC contactor |
| CN110783147A (en) * | 2019-09-29 | 2020-02-11 | 华为技术有限公司 | Direct current contactor and car |
| CN118098881A (en) * | 2024-04-29 | 2024-05-28 | 深圳市长天智能有限公司 | Contactor and arc extinguishing device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |