CN202259056U - High-voltage DC contactor - Google Patents
High-voltage DC contactor Download PDFInfo
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- CN202259056U CN202259056U CN2011203690104U CN201120369010U CN202259056U CN 202259056 U CN202259056 U CN 202259056U CN 2011203690104 U CN2011203690104 U CN 2011203690104U CN 201120369010 U CN201120369010 U CN 201120369010U CN 202259056 U CN202259056 U CN 202259056U
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- contact
- arc
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- iron core
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Abstract
The utility model relates to a high-voltage DC contactor. The high-voltage DC contactor is suitable for medium load systems of electric power, metallurgy, mine, petroleum, communications and transportation and the like, and is especially suitable for capacity charging circuit on an electric locomotive current transformer. The high-voltage DC contactor includes a machine body part, an electromagnetic driving part, a transmission part, a magnetic blow-out part, an auxiliary contact and an arc extinguish chamber. The machine body part is provided with a pedestal, a main frame and a main frame cover plate. The transmission part is provided with a push rod, a returning spring, a rotary frame, a motive main contact and a moving arc contact. The electromagnetic driving part is provided with a cylindrical yoke, a moving iron core and a coil. A bush is arranged between the cylindrical yoke and the moving iron core. The magnetic blow-out part is provided with an iron core, a magnetizing iron plate, a magnetic blow-out coil, a static contact, an upper connection copper bar and a static main contact. The high-voltage DC contactor in the utility model has advantages of long service lifetime, high analyzing speed, strong shock resistance, compact structure, small volume, good sealing performance, convenient installation and maintenance and the like.
Description
Technical field
The utility model relates to a kind of HVDC contactor; Especially a kind of direct solenoid contactor of high pressure low volume; Be applicable in the medium load systems such as electric power, metallurgy, mine, oil, communications and transportation, be specially adapted in the electric capacity charge circuit on the electric locomotive current transformer.
Background technology
At present, the D.C. contactor that uses on China's novel electric power locomotive mainly is as power source with electromagnetic force.Traditional electromagnetic treadle contact does not generally have arcing contact, realizes that than difficult the two gets both between contact breaking capacity and the electric life; Owing to do not have the change of current and striking passage, the breaking course contact burning is serious; Arc control device adopt the metal gate slice structure to cause the disjunction overvoltage high more, and heat-sinking capability is poor, are not suitable for frequent operation greater than rated current; And contact do not have self-cleaning ability, and dust and tiny foreign material cause the loop contact voltage drop significantly to improve easily at contact surface and burn in the trace and retain; How disjunction action counter-force adds leverage by extension spring provides, and it is big to take up room like this, and the installation adjustment is bigger; Adopt U type yoke to indulge and put, the magnetic circuit sealing is bad, causes magnetic force to run off, and gets into dust and foreign material easily, and degree of protection is low; Lining adopts copper-based material, and mechanical endurance is shorter; The arc blow-out device uses permanent magnetic device, unfavorable nonpolarity electric current disjunction, and complex structure, and it is big to take up room, and installation difficulty is big.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, provides that a kind of electric life is long, breaking speed is fast, shock resistance is strong, compact conformation, volume are little, good airproof performance and HVDC contactor convenient for installation and maintenance.
The technical scheme of the utility model is: a kind of HVDC contactor, comprise body part, Electromagnetic Drive part, running part and magnetic blow-out part, and also have auxiliary contact, and arc control device; Wherein:
Moving arc leading angle on body partly has base, main frame, main frame cover plate and is installed in main frame and under be connected copper bar; Described main frame is the positioning reference of whole contactor running part, and the main frame cover plate is inlayed assembly unit and formed the body part;
Electromagnetic Drive partly has the yoke of cylinder type, moving iron core and coil; Horizontal being installed in of Electromagnetic Drive part is provided with on the gelled base;
Running part has and moves push rod that iron core is connected, is installed in reseting spring leaf and the pivoted frame on the main frame and is installed in movable contact rod and the flexible link on the pivoted frame; Moving main contact is housed on the movable contact rod, and moving arcing contact is through being bolted on the moving main contact; Described pivoted frame is provided with the pivoted frame spring, and movable contact rod is rotated on pivoted frame, compresses the pivoted frame spring simultaneously;
Magnetic blow-out partly has iron core, magnetic conduction iron plate, be contained in fastening spring sheet, blowout coil on the magnetic conduction iron plate, be contained in spring leaf on the blowout coil, be contained in quiet arc leading angle on the spring leaf, be contained in quiet arc contact on the quiet arc leading angle, be contained in going up on the blowout coil is connected the quiet main contact on the copper bar on connecting copper bar and being contained in this.
The further technical scheme that on the technique scheme basis, has additional technical feature is:
Described HVDC contactor has lining between the back shaft of its yoke two ends and moving iron core one end and moving iron core.
Described HVDC contactor, its reseting spring leaf form cantilever beam structure between push rod and auxiliary contact.
Described HVDC contactor, its flexible link with under be connected copper bar and movable contact rod and arc leading angle UNICOM.
Described HVDC contactor, its blowout coil one end connects spring leaf, and the other end connects to go up and connects copper bar, is installed between quiet main contact and the quiet arc contact on the blowout coil to have the air gap.
Described HVDC contactor, it is installed between quiet arc leading angle and the blowout coil on the spring leaf has the air gap.
Described HVDC contactor, its arc control device are riveted tightly by two arc extinguishing board gluings of mating each other and are formed; Arc extinguishing board is provided with the staggered trapezoidal stake of height in the cavity inboard of arc control device; The cavity notch of arc control device is symmetrical inverted V-shaped passage.
The obvious technical effects of the utility model:
1, the horizontal design of Electromagnetic Drive part and being installed on the flange-cooled base makes the space of contactor more compact, and the fin of base helps the electromagnetic system heat radiation;
2, through on moving iron core, using wear-resistant coating; And the lining between cylinder type yoke two ends and the moving iron core uses iron base composite material; The especially adhesive of performance of contactor, the stability of releasing value are improved greatly, so that prolong the mechanical endurance of contactor greatly;
3, reseting spring leaf forms cantilever beam structure between push rod and auxiliary switch, has reduced the triggering link of auxiliary switch, has improved the accuracy and the reliability of output signal; Reseting spring leaf utilizes the counter-force of auxiliary switch and the elastic deformation power of self to electromagnet the separating brake counter-force to be provided simultaneously, has reduced the separating brake triggered time of contactor; This structure takes up room little, convenient for installation and maintenance in addition;
4, contact system adopts main, two grades of contacts of arc, and utilizes the spring leaf that is contained on the blowout coil for the quiet arc contact contact pressure to be provided, and this structure of contact terminal has reduced the electrical wear of main contact greatly, and whole structure of contact terminal is simple, and arcing contact is easy to safeguard;
5, the contact-making surface of moving arcing contact and quiet arc contact is the mutual inclined-plane of coupling, and connect with breaking course in can slide relative, can automatic dust out, tiny foreign material and surface oxide layer, prevent to produce the contact melted phenomenon, can effectively prolong the electric life of switch;
6, adopt electric arc to skip the mode that the blowout coil series connection is gone into major loop in quiet main contact and quiet arc contact air gap; Blowout coil is produced help the magnetic field that electric arc gets into arc control device; Thereby make electric arc get into arc control device fast, improved the breaking capacity of contactor;
7, the arc control device notch adopts symmetrical inverted V-shaped passage labyrinth structure, is riveted tightly by two arc extinguishing boards gummed and forms, and arc extinguishing board is in the inboard just staggered structure of trapezoidal stake that adopts of arc control device cavity, can effectively elongate and cools off electric arc strongly, and electric arc is extinguished fast.
Description of drawings
Fig. 1 is that the whole interior structure of the utility model shifts out expanded view.
Fig. 2 is the yoke and the moving core interior section of structure of the utility model cylinder type.
Fig. 3 is the utility model magnetic blow-out system construction drawing.
Fig. 4 is that the utility model arc quenching chamber structure shifts out expanded view.
The Reference numeral that member in the accompanying drawing is corresponding is: base 1; Fin 1.1; Yoke 2; Moving iron core 3; Back shaft 3.1; Under connect copper bar 4; Main frame 5; Blowout coil 6; Last connection copper bar 7; Iron core 8; Spring leaf 9; Quiet arc leading angle 10; Quiet arc contact 11; Quiet main contact 12; Flexible link 13; Moving arcing contact 14; Moving main contact 15; Moving arc leading angle 16; Movable contact rod 17; Pivoted frame 18; Auxiliary contact 19; Reseting spring leaf 20; Push rod 21; Fastening spring sheet 22; Magnetic conduction iron plate 23; Main frame cover plate 24; Axle sleeve 24.1; Frame cover ceramic wafer 24.2; Arc control device 25; Inverted V-shaped passage 25.1; Trapezoidal stake 25.2; Arc extinguishing board 25.3; Lining 26; Coil 27.
Embodiment
In conjunction with accompanying drawing and embodiment the utility model is described further as follows:
Like Fig. 1～shown in Figure 4: a kind of HVDC contactor, its organism part, Electromagnetic Drive part, running part and magnetic blow-out part also have auxiliary contact 19, and arc control device 25; Wherein: the moving arc leading angle 16 on body partly has base 1, main frame 5, main frame cover plate 24 and is installed in main frame 5 and under be connected copper bar 4; Described main frame 5 is the positioning reference of whole contactor running part, and main frame cover plate 24 is inlayed assembly unit and formed the body part; Electromagnetic Drive partly has the yoke 2 of cylinder type, moving iron core 3 and coil 27; The Electromagnetic Drive part is horizontal to be installed on the base 1 that is provided with fin 1.1; Running part has and moves push rod 21 that iron core 3 is connected, is installed in reseting spring leaf 20 and the pivoted frame 18 on the main frame 5 and is installed in movable contact rod 17 and the flexible link 13 on the pivoted frame 18; Moving main contact 15 is housed on the movable contact rod 17, and moving arcing contact 14 is through being bolted on the moving main contact 15; Described pivoted frame 18 is provided with the pivoted frame spring, and movable contact rod 17 is rotated on pivoted frame 18, compresses the pivoted frame spring simultaneously; Magnetic blow-out partly has iron core 8, magnetic conduction iron plate 23, be contained in fastening spring sheet 22, blowout coil 6 on the magnetic conduction iron plate 23, be contained in spring leaf 9 on the blowout coil, be contained in quiet arc leading angle 10 on the spring leaf 9, be contained in quiet arc contact 11 on the quiet arc leading angle 10, be contained in going up on the blowout coil 6 is connected the quiet main contact 12 on the copper bar 7 on connecting copper bar 7 and being contained in this.Between the back shaft 3.1 of described yoke 2 two ends and moving iron core 3 one ends and moving iron core 3 lining 26 is arranged, this lining 26 is processed by iron base composite material; On the moving iron core 3 wear-resistant coating is arranged.Described reseting spring leaf 20 forms cantilever beam structure between push rod 21 and auxiliary contact 19.Described flexible link 13 with under be connected copper bar 4 and movable contact rod 17 and arc leading angle 16 UNICOMs.Described blowout coil 6 one ends connect spring leaf 9, and the other end connects to go up and connects copper bar 7, are installed between quiet main contact 12 and the quiet arc contact 11 on the blowout coil 6 to have the air gap.Between described quiet arc leading angle 10 and the blowout coil 6 that is installed on the spring leaf 9 air gap is arranged.Described arc control device 25 are riveted tightly by two arc extinguishing board 25.3 gluings of mating each other and are formed; Arc extinguishing board 25.3 is provided with the staggered trapezoidal stake 25.2 of height in the cavity inboard of arc control device 25; The cavity notch of arc control device 25 is symmetrical inverted V-shaped passage 25.1.The contact-making surface of described moving arcing contact 14 and quiet arc contact 11 is the inclined-planes that mate each other.Described fin 1.1 is that the high-strength aluminum alloy monoblock cast forms with base 1.
The utility model operating state, structure and principle and effect are described further as follows:
The utility model HVDC contactor is when normal off-state, because the effect of reseting spring leaf 20, pivoted frame 18 places and breaks off the position, and contact is in released state, and electromagnet also is in released state.When contactor was started working, coil 27 got electric excitation, and moving iron core 3 moves inward, and promotes push rod 21 simultaneously, drove pivoted frame 18 swings, made arc, main contact closure successively; Push rod 21 promotes reseting spring leaf 20 simultaneously, and this reseting spring leaf 20 is depressed auxiliary contact 19, auxiliary contact 19 closures.When coil 27 dead electricity, to the electromagnetic attraction disappearance of moving iron core 3, pivoted frame 18 is got back to the open position of beginning again under the effect of reseting spring leaf 20, and main, arcing contact successively separates, and auxiliary contact 19 also breaks off.After wherein main contact breaks off, run the energising of arc loop, blowout coil produces magnetic field upwards, and the electric arc that is produced the contact disjunction is blown in the arc control device 25 fast, and it is extinguished.
The utility model claim protection range is not limited to the foregoing description.
Claims (8)
1. a HVDC contactor is characterized in that, comprises body part, Electromagnetic Drive part, running part and magnetic blow-out part, also has auxiliary contact (19), and arc control device (25); Wherein:
Moving arc leading angle (16) on body partly has base (1), main frame (5), main frame cover plate (24) and is installed in main frame (5) and under be connected copper bar (4); Described main frame (5) is the positioning reference of whole contactor running part, and main frame cover plate (24) is inlayed assembly unit and formed the body part;
Electromagnetic Drive partly has the yoke (2) of cylinder type, moving iron core (3) and coil (27); The Electromagnetic Drive part is horizontal to be installed on the base (1) that is provided with fin (1.1);
Running part has and moves push rod (21) that iron core (3) is connected, is installed in reseting spring leaf (20) and the pivoted frame (18) on the main frame (5) and is installed in movable contact rod (17) and the flexible link (13) on the pivoted frame (18); Moving main contact (15) is housed on the movable contact rod (17), and moving arcing contact (14) is through being bolted on the moving main contact (15); Described pivoted frame (18) is provided with the pivoted frame spring, and movable contact rod (17) goes up at pivoted frame (18) and rotates, and compresses the pivoted frame spring simultaneously;
Magnetic blow-out partly has iron core (8), magnetic conduction iron plate (23), be contained in fastening spring sheet (22), blowout coil (6) on the magnetic conduction iron plate (23), be contained in spring leaf (9) on the blowout coil, be contained in quiet arc leading angle (10) on the spring leaf (9), be contained in quiet arc contact (11) on the quiet arc leading angle (10), be contained in going up on the blowout coil (6) is connected the quiet main contact (12) on the copper bar (7) on connecting copper bar (7) and being contained in this.
2. HVDC contactor as claimed in claim 1 is characterized in that, between the back shaft (3.1) of yoke (2) two ends and moving iron core (3) one ends and moving iron core (3) lining (26) is arranged.
3. HVDC contactor as claimed in claim 1 is characterized in that, reseting spring leaf (20) is positioned between push rod (21) and the auxiliary contact (19), forms cantilever beam structure.
4. HVDC contactor as claimed in claim 1 is characterized in that, flexible link (13) with under be connected copper bar (4) and movable contact rod (17) and arc leading angle (16) UNICOM.
5. HVDC contactor as claimed in claim 1; It is characterized in that; Blowout coil (6) one ends connect spring leaf (9), and the other end connects to go up and connects copper bar (7), are installed between quiet main contact (12) and the quiet arc contact (11) on the blowout coil (6) to have the air gap.
6. HVDC contactor as claimed in claim 1 is characterized in that, being installed between quiet arc leading angle (10) and the blowout coil (6) on the spring leaf (9) has the air gap.
7. HVDC contactor as claimed in claim 1 is characterized in that, arc control device (25) are riveted tightly by two arc extinguishing board (25.3) gluings of mating each other and formed; Arc extinguishing board (25.3) is provided with height staggered trapezoidal stake (25.2) in the cavity inboard of arc control device (25); The cavity notch of arc control device (25) is a symmetrical inverted V-shaped passage (25.1).
8. HVDC contactor as claimed in claim 1 is characterized in that, the contact-making surface of moving arcing contact (14) and quiet arc contact (11) is the inclined-plane that matees each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203690104U CN202259056U (en) | 2011-10-06 | 2011-10-06 | High-voltage DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203690104U CN202259056U (en) | 2011-10-06 | 2011-10-06 | High-voltage DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259056U true CN202259056U (en) | 2012-05-30 |
Family
ID=46120259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203690104U Expired - Fee Related CN202259056U (en) | 2011-10-06 | 2011-10-06 | High-voltage DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436976A (en) * | 2011-10-06 | 2012-05-02 | 武汉长海电气科技开发有限公司 | High-voltage direct-current contactor |
| CN108133868A (en) * | 2017-12-29 | 2018-06-08 | 武汉长海电气科技开发有限公司 | A kind of D.C. contactor contact system |
-
2011
- 2011-10-06 CN CN2011203690104U patent/CN202259056U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436976A (en) * | 2011-10-06 | 2012-05-02 | 武汉长海电气科技开发有限公司 | High-voltage direct-current contactor |
| CN102436976B (en) * | 2011-10-06 | 2014-03-12 | 武汉长海电气科技开发有限公司 | High-voltage direct-current contactor |
| CN108133868A (en) * | 2017-12-29 | 2018-06-08 | 武汉长海电气科技开发有限公司 | A kind of D.C. contactor contact system |
| CN108133868B (en) * | 2017-12-29 | 2024-04-30 | 武汉长海电气科技开发有限公司 | Direct current contactor contact system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20201006 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |