CN2364543Y - Hydraulic electromagnetic track mounted circuit breaker - Google Patents
Hydraulic electromagnetic track mounted circuit breaker Download PDFInfo
- Publication number
- CN2364543Y CN2364543Y CN 99225659 CN99225659U CN2364543Y CN 2364543 Y CN2364543 Y CN 2364543Y CN 99225659 CN99225659 CN 99225659 CN 99225659 U CN99225659 U CN 99225659U CN 2364543 Y CN2364543 Y CN 2364543Y
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- arc
- circuit breaker
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a hydraulic electromagnetic track mounted circuit breaker in a low-voltage electrical apparatus, which is used for protecting, switching and breaking for an electric circuit. The moving contact operating position of an arc-extinguishing system is connected with an operating mechanism; one end of the moving contact is movably connected with a support frame and the other end part is provided with an arc angle; the arc-extinguishing angle of the moving contact is fixed on the support frame; an electrical contact is fixed on the moving contact near the arc angle position; an arc-extinguishing angle is fixed on one end of the static contact; the electrical contact is fixed on the static contact and is positioned at the connecting position of the static contact and the arc-extinguishing angle; the static contact is arranged and fixed on a base; a clip is sheathed on the other end of the static contact; a grid arc-extinguishing chamber is positioned between the arc-extinguishing angles.
Description
The utility model is that the hydraulic-electromagnetic guide rail in the low-voltage electrical apparatus is installed circuit breaker, is used for the protection and the break-make of electric wiring.
A kind of modularization combined circuit breaker is arranged at present, and its structure is made up of plastic casing, operating mechanism, hydraulic-electromagnetic release, contact system, arc-control device, binding post etc.The shortcoming of its structure is, the moving contact of arc quenching system is not with arc angle, and dynamic and static contact all is not with arcing born; Its arc control device are just inserted a few sheet grating sheet arc-chutes on shell.The ultimate breaking capacity of this circuit breaker is lower, has only 3000A, and the against shock and the impact resistance of its operating mechanism are poor, and the terminal connection terminal exposes, and adopts the connection terminal structure of no pressing plate, the easy damaged lead, and security protection is bad.
The purpose of this utility model is the shortcoming that overcomes above-mentioned breaker structure, provides a kind of hydraulic-electromagnetic guide rail of high breaking capacity that circuit breaker is installed.
The purpose of this utility model is to realize like this.The hydraulic-electromagnetic guide rail is installed circuit breaker, includes shell, operating mechanism, arc quenching system, hydraulic-electromagnetic release, binding post and card key 1 is installed, and shell is made up of base 12 and cover plate of outer casing 26.Moving contact 24 operating positions of arc quenching system are connected with operating mechanism; Moving contact 24 1 ends are movably connected on the support 10, and the arcing born 15 of moving contact 24 is fixed on the support 10, and moving contact end in addition has arc angle 17, and electrical contact 18 is fixed on the position of close arc angle 17 on the moving contact 24; Fixed contact 22 1 ends are fixed with arcing born 21, and electrical contact 20 is fixed on the fixed contact, are positioned at fixed contact and arcing born 21 junctions; Fixed contact is fixed on the base 12; Arc-chute 40 is fixedly connected to form grating arc-extinguishing chamber 16 with flash barrier 27; Grating arc-extinguishing chamber is positioned between arcing born 15 and the arcing born 21, external application shell location.
Can increase voltage magnetizing coil 5 in the hydraulic-electromagnetic release, the voltage magnetizing coil is fixed on the lubricating cup 2; Have armature balanced structure 14 on the armature 9 in the hydraulic-electromagnetic release.
Also can increase auxiliary contact 23 and be fixed on the base 12, be fixed with linking lever 19 on the auxiliary contact, auxiliary contact is dynamically connected by linking lever 19 and moving contact 24.
The structure of binding post can be, fixed contact 22 is fixed on the base 12, and clamp 3 is enclosed within the input of fixed contact, and the clamp upper end is equipped with screw 4, and outside input lead is inserted under the fixed contact and between the clamp; Gusset piece 6 is fixed on the base 12, and clamp is enclosed within the output of gusset piece, and clamp upper end is equipped with screw 4, and outside output lead is inserted under the gusset piece and between the clamp.Binding post external application shell location and guiding are for built-in.
Connecting the horizontal assembly of single-pole circuit breaker by interlinked mechanism can assemble and form multipole circuit breaker.Assembly unit is flexible.
Operating mechanism of the present utility model is made of handle 11, upper connecting rod 35, lower link 38, connecting plate 36, support 10, moving contact 24 etc.Upper connecting rod and lower link and connecting plate constitute linkage 13.Operating mechanism is installed on the metallic support, makes its operating characteristic not be subjected to the influence of the plastic casing accuracy of manufacture.When clockwise direction promoted operating grip, closing force passed to moving contact through linkage, makes the moving contact closure.When contact closure, make contact that bigger pressure be arranged by the touch spring 30 that pins by machinery, the counter-force of contact is pinned tripping mechanism, and holding circuit is connected.When overload or short circuit occurring, the hydraulic electromagnetic release is action just, removes the locking-in state of operating mechanism by the dropout of operating mechanism, thereby makes the contact disjunction.Under normal condition, operating grip just can be removed the locking-in state of operating mechanism, and the closure of contact then realizes by operating grip.
Contact arc-extinguishing system of the present utility model is by moving contact 24 and electrical contact 18, fixed contact 22 and electrical contact 20, with the arc angle 17 of moving contact one, constitute with moving contact arcing born 15, fixed contact arcing born 21 and the grating arc-extinguishing chamber 16 etc. of support one.Contact arc-extinguishing system not only is used for connecting circuit, but also can be used for extinguishing the electric arc that contact produces when disjunction.Adopt arc angle to make electric arc produce the normal direction motion, can make the arc root leave electrical contact 18 and electrical contact 20, avoid the undue scaling loss of electrical contact.The arcing born 15 and the support of moving contact are one, link to each other with moving contact 24 on electric, but do not move with moving contact.When moving contact and fixed contact separate, between electrical contact 18 and electrical contact 20, produce electric arc.Owing to moved right rapidly by the electrodynamic effect in contact galvanic circle.Leaving electrical contact 20 at the arc root on the fixed contact 22 moves on on the fixed contact arcing born 21.Leave electrical contact 18 at the arc root on the moving contact and move on to arc angle 17 again to moving contact arcing born 15.Under electrodynamic action, electric arc moves further to the right and is elongated, the blow-out up to entering grating arc-extinguishing chamber 16.Arc control device are made up of flash barrier 27 and arc-chute 40.
Tripping mechanism of the present utility model is made of the hydraulic-electromagnetic release with overcurrent release and shunted exciter tripping structure, overcurrent trip and shunt release are combined, can make the miniaturization of circuit breaker volume, under the prerequisite that does not increase the circuit breaker volume, make its functional diversities.The hydraulic-electromagnetic release by moving unshakable in one's determination 28, voltage magnetizing coil 15, current excitation coil 7, with support and moving contact arcing born be that yoke 29 (being the yoke part of support), armature 9 and the pole shoe 8 of one constitutes.Lubricating cup 2 (non magnetic container) is equipped with moving iron core 28, reaction spring 31 and silicone oil 32 with the cold drawn one-tenth copper pipe of sheet copper in lubricating cup, the mouth of pipe seals with pole shoe.Be wound with current excitation coil or voltage magnetizing coil on the container.Container and current excitation coil (or voltage magnetizing coil) are contained on the yoke, and armature one end supports with torsionspring 33, and it is rotatable that the armature corner nestles up yoke.Because the effect of torsionspring keeps an air gap between armature and the pole shoe.When the current excitation coil passes through rated operational current, moving iron core is subjected to the effect that electromagnetic force also is not enough to overcome reaction spring, still remain on the bottom of container, the attraction that the magnetic flux of while current excitation coil produces between pole shoe and armature also is not enough to overcome the effect of torsionspring to armature, magnetic circuit is held open state, so release is failure to actuate.When the power that is produced greater than moving unshakable in one's determination itself gravity and during the counter-force of reaction spring 31, moving unshakable in one's determinationly in lubricating cup, move upward lentamente.In case during moving arrival lubricating cup unshakable in one's determination top, the magnetic resistance of magnetic circuit is along with diminishing, magnetic flux increases, and suction increases thereupon.Armature is under the effect of electromagnetic force, overcome the effect of torsionspring, inhale rapidly to pole shoe, the tripping position 37 of armature promotes the connecting plate 36 of linkage 13 simultaneously, eliminate a fulcrum in linkage two fulcrums, under handle spring and touch spring 30 effects, operating mechanism is realized trip free.Therefore the operating current value of circuit breaker is only relevant with the counter-force of electromagnetic attraction (number of ampere turns) and reaction spring and armature, and is not subjected to the influence of ambient temperature.Hydraulic oil in the lubricating cup adopts silicone oil.Silicone oil is a kind of artificial oil, and its viscosity-temperature characteristics are good.When temperature changed in a big way, viscosity changed very little, utilizes silicone oil as resisting medium, can obtain desirable operating characteristics in very wide temperature range.When moving iron core moves upward; be subjected to the damping action of oil and produce time-delay; since the viscosity of silicone oil (hydraulic oil) at low temperatures time of delay long; can provide additional period during the starting cool equipment; at high temperature, circuit breaker can be threaded off rapidly, with the circuit of protection heating; this just makes the circuit breaker that the small-sized hydraulic electromagnetic release is housed obtain anti-time limit characteristic, helps overload protection.When current excitation coil 7 passed through the control power supply by short circuit current or voltage magnetizing coil 15, the magnetic flux of generation was enough big, and armature is inhaled rapidly to pole shoe, and tripping mechanism is threaded off, and makes the contact disjunction, with instantaneous protection or the long-range shunt opening of circuit that plays short circuit.After short circuit current or the disappearance of shunt opening control power supply, moving iron core resets under the reaction spring effect very soon.
For realizing overload and short-circuit protection, on the lubricating cup of hydraulic-electromagnetic release, set up a voltage magnetizing coil 5, merge with current excitation coil 7 and install, make the hydraulic-electromagnetic release have overcurrent and shunted exciter tripping (voltage trip) dual-use function.When the electric current in the circuit surpasses certain numerical value, the hydraulic electromagnetic release is action just, by a fulcrum in 13 liang of fulcrums of tripping position 37 elimination linkages of armature, under handle spring 34 and moving contact spring 30 effects, operating mechanism is realized trip free, removed the locking-in state of operating mechanism, thereby made the contact disjunction.Shunt opening trip coil (voltage magnetizing coil) can make the shunt opening trip coil energising according to operating personnel's order or relay protection signal by control power supply (exchanging or direct current) power supply.After the shunt opening trip coil energising, armature is inhaled to pole shoe 8,, the connecting plate 36 that its tripping position 37 promotes to thread off makes circuit breaker branch deenergizing.
On the hydraulic electromagnetic release of every utmost point circuit breaker, can adorn a current excitation coil 7 or a shunt opening trip coil (voltage magnetizing coil) 5 by actual needs, but also both have concurrently.
On armature 9, add balanced structure 14, make armature remain dynamic and static balance.The action of armature is only relevant with torsionspring 33 with electromagnetic attraction, and irrelevant substantially with vibrations and impact, has improved tripping mechanism against shock and impact resistance thus, makes circuit breaker have the against shock impact resistance.
The mode of connection of circuit breaker adopts the connection terminal structure of built-in strap clamp hoop 3.Binding post divides input terminal and load terminal.Input terminal is made of fixed contact 22, clamp 3.Load terminal is made of joint cover 6, clamp 3.As long as be screwed, with regard to the energy clamping wire, unlikely again damage lead and terminal, and make binding post approaching easily again, and be convenient to be connected with outer lead, improved the safeguard protection performance of circuit breaker.
Connect the horizontal assembly assembling of single-pole circuit breaker by interlinked mechanism and form multipole circuit breaker, assembling is flexible, highly versatile, and can improve the phase insulation level.
The utility model provides a kind of volume little, and the modularization terminal combinations hydraulic-electromagnetic guide rail of the high breaking capacity of compact conformation (6000A) is installed circuit breaker.Its protection operating current value is accurate, influenced by ambient temperature minimum, security protection is good, all can have overcurrent and shunted exciter tripping function in one pole and the multipole circuit breaker, be particularly suitable for being applied to the occasion that the higher electronic computer of automaticity, communication power supply system and no-break power unit etc. are had relatively high expectations to power quality, alternative import equipment; Circuit breaker also can be used to electric wiring and the equipment in defend the dwelling and the corresponding building simultaneously, as overload and short-circuit protection usefulness, meets the requirement of isolating electrical equipment, uses as insulating power supply.All can attach shunt opening in every utmost point circuit breaker and take off mouth structure, can dwindle the circuit breaker volume, improve the power distribution equipment utilance, reduce the consumption of the raw material and the energy.The utility model time-delay characteristics have temp regulating function, and low temperature is long following time of delay, during starting cold conditions equipment, can provide additional period; At high temperature, can thread off rapidly with the circuit of protection heating; The action back is short resetting time, and the against shock strong shock resistance has overcurrent protection and long-range shunt opening dual-use function.Be installed as car coat type.
The utility model is provided by following examples and accompanying drawing thereof.
1 installs the card key, 2 lubricating cups, 3 clamps, 4 screws, 5 voltage magnetizing coils, 6 gusset pieces, 7 current excitation coils, 8 pole shoes, 9 armature, 10 supports, 11 handles, 12 bases (shell), 13 linkages, 14 armature balanced structures, 15 moving contact arcing borns, 16 grating arc-extinguishing chamber, 17 arc angles, 18 electrical contacts, 19 auxiliary contact linking levers, 20 electrical contacts, 21 fixed contact arcing borns, 22 fixed contacts, 23 auxiliary contacts, 24 moving contacts, 25 moving parts, 26 cover plate of outer casing, 27 flash barriers, 28 is moving unshakable in one's determination, 29 yokes, 30 touch springs, 31 reaction springs, 32 silicone oil, 33 torsionsprings, 34 handle springs, 35 upper connecting rods, 36 connecting plates, 37 armature tripping positions, 38 lower links, 39 back-moving springs, 40 arc-chutes.
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the utility model profile end views.
Accompanying drawing 4 is connection terminal structure schematic diagrames.
Accompanying drawing 5 is connection terminal structure schematic diagrames.
Accompanying drawing 6 is supporting structure schematic diagrames.
Accompanying drawing 7 is card bond structure schematic diagrames.
Accompanying drawing 8 is armature structure schematic diagrames.
Accompanying drawing 11 is moving contact structure schematic diagrames.
Accompanying drawing 12 is moving part structural representations.
Shell is made of base 12 and cover plate 26, adopts the heat-resisting engineering plastics of high-strength anti-flaming to make.It is not only structural member, and is the location and installation part, has certain mechanical strength and arc resistance energy.Operating mechanism is installed on the metallic support 10, and support is fixed on the base 12.Operating mechanism is made of handle 11, upper connecting rod 35, lower link 38, connecting plate 36, support 10, moving contact 24 etc.Handle spring 34 is installed on the handle 11, flexibly connects by pivot pin and support 10.Upper connecting rod one end is movably connected on the handle, and the other end and connecting plate nose end flexibly connect.Lower link one end and connecting plate long lumbar hole end flexibly connect, and the other end and moving contact operating position flexibly connect, and touch spring 30 is installed in moving contact long lumbar hole one end, flexibly connect by pivot pin and support.Form linkage 13 by upper connecting rod, lower link, connecting plate, connecting plate and upper and lower pull bar form two fulcrums.
Arc quenching system is made of moving contact 24, fixed contact 22, electrical contact 18, arc angle 17, moving contact arcing born 15, fixed contact arcing born 21, grating arc-extinguishing chamber; The moving contact operating position is connected with operating mechanism; Moving contact 24 1 ends are movably connected on the support 10, are connected with current excitation coil 7 or gusset piece 16 by soft hinge line as required in this end bottom, and the other end has arc angle 17, and the arcing born 15 of moving contact is fixed on the support 10; Electrical contact 18 is fixed on the position of close arc angle 17 on the moving contact 24; Fixed contact 22 1 ends are fixed with arcing born 21, and electrical contact 20 is fixed on the fixed contact, are positioned at fixed contact and arcing born 21 junctions; Fixed contact is fixed on the base 12; Clamp 3 is enclosed within on the fixed contact other end; Arc-chute 40 is fixedly connected to form grating arc-extinguishing chamber 16 with flash barrier 27; Grating arc-extinguishing chamber is positioned between arcing born 15 and the arcing born 21, external application shell location.
The hydraulic-electromagnetic release is made of lubricating cup 2, voltage magnetizing coil 5, current excitation coil 7, yoke 29, armature 9.Moving iron core 28 is housed in the lubricating cup, on the moving iron core reaction spring 31 is installed, fill with silicone oil 32 in the lubricating cup, the lubricating cup mouth seals with pole shoe 8, and pole shoe is located with spacer.Voltage magnetizing coil 5 and current excitation coil 7 are fixed on the lubricating cup, are contained in together on the yoke 29.Torsionspring 33 flexibly connects by pivot pin and support.Torsionspring one end is located adjacent to 37 places, armature tripping position, and the other end is by the support location.Yoke 29 is yoke parts of support 10, with support be an integral body.Hydraulic-electromagnetic release and operating mechanism are fixed on the base.Because the effect of torsionspring keeps a gap between armature and the pole shoe.
Have armature balanced structure 14 on the armature 9 in the hydraulic-electromagnetic release.
The structure of binding post is, fixed contact 22 is fixed on the base 12, and clamp 3 is enclosed within the input of fixed contact, and the clamp upper end is equipped with screw 4, and outside input lead is inserted under the fixed contact and between the clamp; Gusset piece 6 is fixed on the base 12, and clamp is enclosed within the output of gusset piece, and clamp upper end is equipped with screw 4, and outside output lead is inserted under the gusset piece and between the clamp.
Multipole circuit breaker is except that handle connects together, and inside also has interlinked mechanism.Interlinked mechanism is made of moving part 25, back-moving spring 39 etc.When a phase release moves, make each all disjunction simultaneously mutually by moving part, guarantee not take place the single-phase accident that opens circuit.When contact of breaker was closed, moving part resetted under action of reset spring.
The mounting means of circuit breaker is a car coat type, is installed on the shape for hat mounting rail of top, adopts flexible installation card key 1 to connect between circuit breaker and the mounting rail.
Claims (5)
1, a kind of hydraulic-electromagnetic guide rail is installed circuit breaker, include shell, operating mechanism, arc quenching system, hydraulic-electromagnetic release, binding post and card key 1 is installed, shell is made up of base 12 and cover plate of outer casing 26, it is characterized in that arc quenching system is made of moving contact 24, fixed contact 22, electrical contact 18, arc angle 17, moving contact arcing born 15, fixed contact arcing born 21, grating arc-extinguishing chamber; The moving contact operating position is connected with operating mechanism; Moving contact 24 1 ends are movably connected on the support 10, fixedly connected soft hinge line and current excitation coil 7 or gusset piece 16 in this end bottom, and the other end has arc angle 17, and the arcing born 15 of moving contact is fixed on the support 10; Electrical contact 18 is fixed on the position of close arc angle 17 on the moving contact 24; Fixed contact 22 1 ends are fixed with arcing born 21, and electrical contact 20 is fixed on the fixed contact, are positioned at fixed contact and arcing born 21 junctions; Fixed contact is fixed on the base 12; Arc-chute 40 is fixedly connected to form grating arc-extinguishing chamber 16 with flash barrier 27; Grating arc-extinguishing chamber is positioned between arcing born 15 and the arcing born 21, external application shell location.
2, according to the described hydraulic-electromagnetic guide rail of claim 1 circuit breaker is installed, is it is characterized in that increasing voltage magnetizing coil 5 in the hydraulic-electromagnetic release, the voltage magnetizing coil is fixed on the lubricating cup 2; Have armature balanced structure 14 on the armature 9 in the hydraulic-electromagnetic release.
3, according to claim 1,2 described hydraulic-electromagnetic guide rails circuit breaker is installed, is it is characterized in that auxiliary contact 23 is fixed on the base 12, be fixed with linking lever 19 on the auxiliary contact, auxiliary contact is dynamically connected by linking lever 19 and moving contact 24.
4, according to the described hydraulic-electromagnetic guide rail of claim 1 circuit breaker is installed, the structure that it is characterized in that binding post is, fixed contact 22 is fixed on the base 12, clamp 3 is enclosed within the input of fixed contact, clamp upper end is equipped with screw 4, and outside input lead is inserted under the fixed contact and between the clamp; Gusset piece 6 is fixed on the base 12, and clamp is enclosed within the output of gusset piece, and clamp upper end is equipped with screw 4, and outside output lead is inserted under the gusset piece and between the clamp.
5, according to the described hydraulic-electromagnetic guide rail of claim 1 circuit breaker is installed, is it is characterized in that connecting single-pole circuit breaker by interlinked mechanism forms multipole circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225659 CN2364543Y (en) | 1999-02-04 | 1999-02-04 | Hydraulic electromagnetic track mounted circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225659 CN2364543Y (en) | 1999-02-04 | 1999-02-04 | Hydraulic electromagnetic track mounted circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364543Y true CN2364543Y (en) | 2000-02-16 |
Family
ID=34015488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99225659 Expired - Fee Related CN2364543Y (en) | 1999-02-04 | 1999-02-04 | Hydraulic electromagnetic track mounted circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364543Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819908A (en) * | 2010-04-16 | 2010-09-01 | 江苏辉能电气有限公司 | Conducting loop structure of low-voltage circuit breaker |
| CN102187420A (en) * | 2008-10-15 | 2011-09-14 | Abb股份公司 | Low voltage circuit breaker |
| CN103219204A (en) * | 2012-01-18 | 2013-07-24 | 陈洪元 | Current-limiting type liquid-magnet type miniature circuit breaker |
-
1999
- 1999-02-04 CN CN 99225659 patent/CN2364543Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102187420A (en) * | 2008-10-15 | 2011-09-14 | Abb股份公司 | Low voltage circuit breaker |
| CN101819908A (en) * | 2010-04-16 | 2010-09-01 | 江苏辉能电气有限公司 | Conducting loop structure of low-voltage circuit breaker |
| CN101819908B (en) * | 2010-04-16 | 2012-08-29 | 江苏辉能电气有限公司 | Conducting loop structure of low-voltage circuit breaker |
| CN103219204A (en) * | 2012-01-18 | 2013-07-24 | 陈洪元 | Current-limiting type liquid-magnet type miniature circuit breaker |
| CN103219204B (en) * | 2012-01-18 | 2016-02-24 | 陈洪元 | Current-limiting type liquid magnetic-type miniature circuit breaker |
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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 |