CN109273330A - A kind of double-contact breaker - Google Patents
A kind of double-contact breaker Download PDFInfo
- Publication number
- CN109273330A CN109273330A CN201811366727.6A CN201811366727A CN109273330A CN 109273330 A CN109273330 A CN 109273330A CN 201811366727 A CN201811366727 A CN 201811366727A CN 109273330 A CN109273330 A CN 109273330A
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- Prior art keywords
- contact
- double
- arc
- heat
- tripping
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- 238000009434 installation Methods 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 39
- 230000003068 static effect Effects 0.000 claims description 39
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- 239000010931 gold Substances 0.000 claims description 9
- 229910052737 gold Inorganic materials 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
Landscapes
- Breakers (AREA)
Abstract
A kind of double-contact breaker.It is characterized by: the heat-insulated energy storing members use insulated heat material, and it is fixedly mounted between two the second installation side plates, the heat-insulated energy storing members upper end is formed with the contact surface with handle cooperation, the heat-insulated energy storing members two sides are then formed with positioning convex platform compatible with the second mounting hole, the positioning convex platform is caught in the second mounting hole, and the perforation concentric with the first mounting hole is formed on positioning convex platform.It the advantage is that the heat-insulated energy storing members using insulated heat material, the rotary shaft passes through the perforation of heat-insulated energy storing members, kept apart by heat-insulated energy storing members with moving contact rack, reach preferable heat insulation, rotary shaft heat damage lever is avoided, improves double-contact breaker service life, and structure is simple, it is easy for installation, production efficiency is provided.
Description
Technical field
The present invention relates to a kind of Low Voltage Electrical Apparatus, are specifically related to a kind of double-contact breaker.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition.
The contact of usual miniature circuit breaker generallys use single-tap point structure, and structure contact is reliable, electrodynamical stability is high, touching
Head parameter is easily adjusted, but when its disjunction short circuit current, contact burn and serious wear, lead to single-tap point structure breaking capacity
Difference.
The contact of existing miniature circuit breaker also has using double contact structure, that is, two pairs of dynamic/static contact shareds point are arranged
Power-off stream, so breaking capacity greatly improves.
But since double contact structure breaking capacity improves, the breaking current integrally undertaken increases, moving contact rack
Heat directly can be transferred to lever by rotary shaft, to damage lever, cause breaker service life low, and double-contact
Miniature circuit breaker structure is increasingly complex, and assembling is difficult, and production efficiency is low.
Summary of the invention
In order to overcome the shortcomings of that background technique, the present invention provide a kind of double-contact breaker.
The technical solution adopted in the present invention: a kind of double-contact breaker, including shell and it is mounted on the intracorporal operation of shell
Mechanism, static contact mechanism, tripping mechanism, arc-extinguishing mechanism, connecting terminal；The operating mechanism include handle, U type connecting rod, lever,
Tripping, lock, moving contact rack, double-contact moving contact；The handle and lever are pivoted on shell respectively, the jump
Button, lock are pivoted on the lever respectively with moving contact rack, are connected between the handle and tripping by U type connecting rod
It connects, the tripping and lock are respectively provided with the hasp face for being suitable for the two locking, and the double-contact moving contact is fixedly mounted on dynamic touching
On head bracket；The operating mechanism further includes heat-insulated energy storing members, energy-stored spring, rotary shaft, and the lever two sides have been correspondingly formed
First installation side plate has been correspondingly formed the first mounting hole compatible with rotary shaft in first installation side plate；The dynamic touching
Head bracket is arranged between two the first installation side plates comprising the second installation side plate that bottom plate and bottom plate two sides are correspondingly arranged,
The second mounting hole corresponding with the first mounting hole is formed in second installation side plate；The heat-insulated energy storing members are using insulation
Heat-barrier material, and be fixedly mounted between two the second installation side plates, the heat-insulated energy storing members upper end is formed with to be cooperated with handle
Contact surface, the heat-insulated energy storing members two sides are then formed with positioning convex platform compatible with the second mounting hole, the positioning convex platform
It is caught in the second mounting hole, and is formed with the perforation concentric with the first mounting hole on positioning convex platform；The rotary shaft passes through first
Mounting hole is perforated and is mounted on shell.
The energy-stored spring uses torsion spring；The heat-insulated energy storing members two sides are formed with the cylinder being adapted to torsion spring, institute
The upper end for stating the second installation side plate is formed with first limiting section with lever limit cooperation, and lower end is formed with to twist leg with torsion spring
The second limiting section matched；The lever upper end is formed with the third limiting section matched with torsion spring intermediate connecting rod.
The lever middle is formed with the first limiting slot, and the tripping is equipped with the first limit convex being adapted to the first limiting slot
Platform, first positive stop lug boss end are formed with the first hasp face, and the lock is equipped with the second limit being adapted to the first limiting slot
Position boss, second positive stop lug boss end is formed with the second hasp face matched with the first hasp face.
The shell includes the intermediate bulkhead for separating shell or so in shell and shell；The tripping mechanism includes electromagnetism
Trip assembley therefor, the electromagnetic trip component include the magnetic yoke in U-typed structure；The static contact mechanism includes two and is respectively set
Static contact in intermediate bulkhead two sides, two static contacts are corresponding with two movable contacts of double-contact moving contact respectively,
In a static contact be fixedly mounted on intermediate bulkhead, another static contact is connected with magnetic yoke；What magnetic yoke and static contact cooperated
Mounting surface and magnetic yoke front-back staggered are arranged.
The tripping mechanism further includes thermal tripping component, and the thermal tripping component includes double gold plaques, double golden pull rods；
The second limiting slot, double golden pull rod one end connection locks are formed on the intermediate bulkhead, the other end is arranged second
In limiting slot, and with double gold plaque corresponding matchings.
The arc-extinguishing mechanism is equipped with two groups, and is respectively arranged at intermediate bulkhead two sides and opposite with the static contact of two sides respectively
It answers；The arc-extinguishing mechanism arc-extinguish chamber, arc-shaped arc striking piece, magnetic conductive board；
The magnetic conductive board includes two panels magnetic conduction sheet disposed in parallel and the connection sheet for connecting two panels magnetic conduction sheet；
Every group of arc-extinguishing mechanism further includes two pieces of symmetrically arranged mounting plates, one of mounting plate fixing clamp be set to intermediate bulkhead with
Static contact, another piece of mounting plate fixing clamp is set to be formed with and magnetic conduction between housing sidewall and static contact, and on the mounting plate
The compatible slot of piece；
The magnetic conductive board is inserted into slot and mounting plate secure fit by magnetic conduction sheet.
The static contact bottom is bent towards arc-extinguish chamber direction, and forms U-shaped groove structure, and the mounting plate is towards static contact
Side on be formed with positive stop lug boss compatible with U-lag；The positive stop lug boss is mutually clamped with U-lag.
The arc-shaped arc striking piece is fixedly mounted on intermediate bulkhead, the upper connection including curved portion and curved portion both ends
Portion and lower interconnecting piece, the upper interconnecting piece and curved portion form T-shaped structure；
Groove corresponding with upper interconnecting piece is formed on the magnetic conduction sheet, the arc part of the arc-shaped arc striking piece is in two pieces
Between mounting plate, and upper interconnecting piece is stuck in the groove of two panels magnetic conduction sheet.
The intermediate bulkhead is equipped with the card slot that can mutually block with lower interconnecting piece, and the card that can be mutually clamped with upper interconnecting piece
Platform, the arc-shaped arc striking piece are fixed on intermediate bulkhead；Arc-shaped arc striking piece on two groups of arc-extinguishing mechanisms passes through upper company
Socket part is connected to form one formula structure, the intermediate connections phase between the chuck and the upper interconnecting piece of two groups of arc-shaped arc striking pieces
Card.
The beneficial effects of the present invention are: the heat-insulated energy storing members use insulated heat material, the rotation using above scheme
Shaft passes through the perforation of heat-insulated energy storing members, is kept apart by heat-insulated energy storing members with moving contact rack, reaches preferable heat-insulated effect
Fruit avoids rotary shaft heat damage lever, improves double-contact breaker service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of double-contact breaker of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of operating mechanism of the embodiment of the present invention.
Fig. 3 is that operating mechanism of the embodiment of the present invention omits the structural schematic diagram after handle and U type connecting rod.
Fig. 4 is that operating mechanism of the embodiment of the present invention omits the explosive decomposition figure after handle and U type connecting rod.
Fig. 5 is the structural schematic diagram of lever of the embodiment of the present invention.
Fig. 6 is the structural schematic diagram of another angle of lever of the embodiment of the present invention.
Fig. 7 is the structural schematic diagram of moving contact rack of the embodiment of the present invention.
Fig. 8 is the structural schematic diagram of the heat-insulated energy storing members of the embodiment of the present invention.
Fig. 9 is the structural schematic diagram of tripping of the embodiment of the present invention.
Figure 10 is the structural schematic diagram of lock of the embodiment of the present invention.
Figure 11 is the structural schematic diagram of handle of the embodiment of the present invention.
Figure 12 is the structural schematic diagram of electromagnetic trip of embodiment of the present invention component.
Figure 13 is the structural schematic diagram of magnetic yoke of the embodiment of the present invention.
Figure 14 is the enlarged diagram in Fig. 1 at A.
Figure 15 is the structural schematic diagram of intermediate bulkhead of the embodiment of the present invention.
Figure 16 is the structural schematic diagram of arc-extinguishing mechanism of the embodiment of the present invention.
Figure 17 is the arc-shaped arc striking piece of the embodiment of the present invention, the fit structure between magnetic conductive board, mounting plate, static contact is illustrated
Figure.
Figure 18 is the structural schematic diagram of the arc-shaped arc striking piece of the embodiment of the present invention.
Figure 19 is the structural schematic diagram of magnetic conductive board of the embodiment of the present invention.
Figure 20 is the structural schematic diagram of mounting plate of the embodiment of the present invention.
Figure 21 is the structural schematic diagram of static contact of the embodiment of the present invention.
Specific embodiment
Embodiments of the present invention is further illustrated with reference to the accompanying drawing:
As shown in Figure 1, a kind of double-contact breaker, including shell 1 and it is mounted on the intracorporal operating mechanism 2 of shell, static contact mechanism
3, tripping mechanism 4, arc-extinguishing mechanism 5, connecting terminal 6.
Wherein, the shell 1 includes the intermediate bulkhead 11 for separating shell or so in shell and shell；The static contact machine
Structure 3 includes two static contacts 31 for being separately positioned on 11 two sides of intermediate bulkhead.
As shown in figs. 2-11, the operating mechanism 2 include handle 21, U type connecting rod 22, lever 23, tripping 24, lock 25,
Moving contact rack 26, double-contact moving contact 27, heat-insulated energy storing members 28, energy-stored spring 29, rotary shaft 210；The handle 21 and thick stick
Bar 23 is pivoted on respectively on shell 1, and the tripping 24, lock 25 are pivoted on the thick stick with moving contact rack 26 respectively
It on bar 23, is connected between the handle 21 and tripping 24 by U type connecting rod 22, the tripping 24 is respectively provided with lock 25 to be suitable for
The hasp face of the two locking, the double-contact moving contact 27 are fixedly mounted on moving contact rack 26 by way of welding or riveting
On, and the U-shaped structure of double-contact moving contact 27, both ends are respectively arranged at 11 two sides of intermediate bulkhead, and be provided with two it is quiet
The corresponding movable contact of contact 31.
23 two sides of lever have been correspondingly formed the first installation side plate 231, are correspondingly formed in first installation side plate 231
There is first mounting hole 232 compatible with rotary shaft 210；The moving contact rack 26 is arranged in two the first installation side plates 231
Between comprising the second installation side plate 262 that bottom plate 261 and 261 two sides of bottom plate are correspondingly arranged, second installation side plate 262
On be formed with second mounting hole 263 corresponding with the first mounting hole 232；The heat-insulated energy storing members 28 use insulated heat material
Material, and be fixedly mounted between two the second installation side plates 262, heat-insulated 28 upper end of energy storing members is formed with to be cooperated with handle 21
Contact surface 281, heat-insulated 28 two sides of energy storing members are then formed with positioning convex platform 282 compatible with the second mounting hole 263, institute
It states positioning convex platform 282 to be caught in the second mounting hole 263, and is formed on positioning convex platform 282 and the first mounting hole 232 is concentric wears
Hole 283；The rotary shaft 210 passes through the first mounting hole 232, perforation 283 and is mounted on shell 1.
21 outer peripheral surface of handle and the contact surface 281 of heat-insulated energy storing members 28 are engaged, on 21 outer ring of handle
It is also formed with gap slot.
The energy-stored spring 29 uses torsion spring；28 two sides of heat-insulated energy storing members are formed with cylinder 284, the cylinder
284 ends offset with the second installation side plate 262, and the positioning convex platform 282 is arranged in 284 end center of cylinder, the energy storage
Two spring coils of spring 29 are respectively sleeved on two cylinders 284；The upper end of second installation side plate 262 is formed with and lever
First limiting section 264 of 23 limit cooperations, lower end is formed with and energy-stored spring 29 two the second limiting sections matched that twist leg
265；23 upper end of lever is formed with the third limiting section 233 matched with the intermediate U type connecting rod of energy-stored spring 29.
In making process, with the rotation of handle 21, lever 23 can be driven to rotate by U type connecting rod 22, tripping 24, together
When, since the contact surface of heat-insulated energy storing members 28 is in contact with handle 21, the movement of moving contact rack 26 is limited, so as to there is pressure
Contracting energy-stored spring 29 carries out energy storage, separates once being rotated in place handle 21 with the contact surface of heat-insulated energy storing members 28, moving contact rack
26 quickly rotate under the resilient force of energy-stored spring 29, realize and close a floodgate, meanwhile, which is double-contact moving contact
The necessary excess of stroke is provided.
The heat-insulated energy storing members 28 use insulated heat material, and the rotary shaft 210 passes through the perforation of heat-insulated energy storing members 28
283, kept apart by heat-insulated energy storing members 28 with moving contact rack 26, reach preferable heat insulation, avoid rotary shaft 210 by
Cause thermal damage lever 23 improves double-contact breaker service life.
Since heat-insulated energy storing members 28 are adopted a split structure with moving contact rack 26, enable energy-stored spring 29 using one
Body formed torsion spring, relative to two torsional springs are used, assembling is more convenient, and structural behaviour is also more stable.
In addition, further including fixing axle 211, the fixing axle 211 passes through moving contact rack 26 and heat-insulated energy storing members 28, due to
Rotary shaft 210 passes through the first mounting hole 232 and perforation 283, and heat-insulated energy storing members 28 are connected together with moving contact rack 26,
Therefore it need to only be connected again by a fixing axle 211, realization is two fixed, and moving contact rack 26 and heat-insulated energy storing members 28 is fixed
Together, structure is simple, installs also very convenient.
As shown, being formed with the first limiting slot 234 in the middle part of the lever 23, the tripping 24 is equipped with and the first limiting slot
First positive stop lug boss 241 of 234 adaptations, 241 end of the first positive stop lug boss is formed with the first hasp face 242, the lock
25 are equipped with the second positive stop lug boss 251 for be adapted to the first limiting slot 234, and 251 end of the second positive stop lug boss is formed with and the
The second hasp face 252 that one hasp face 242 matches.
By the first limiting slot 234, the position of energy restricted tripping 24 and lock 25 avoids its play from deviating, guarantees it
The stability of installation, while tripping 24 and lock 25 being made to be maintained at medium position, so that stress on the whole keeps balance, into
One step guarantees its working performance.
In addition, being additionally provided with the instruction unit 235 for being used to indicate opening and closing state on the lever 23, which can be with not
Same color provides the effect of an instruction to show the different location of lever.
As shown in Figure 1, the tripping mechanism 4 includes electromagnetic trip component 41 and thermal tripping component 42.
Wherein, the electromagnetic trip component 41 is as shown in figure 12, including magnetic yoke 411, coil brace, static iron core, mandril, multiple
Position spring, when the failures such as short circuit occur, mandril ejection pushes lock to realize tripping, and specific structure principle is the prior art,
It is not described herein.Wherein, as shown in figure 13, whole be in U-typed structure to the magnetic yoke 411, and coil brace support clamp is equipped with magnetic
In the two side walls of yoke 411, the mounting surface 412 being connected with one of static contact 31 is also formed in the magnetic yoke 411, it should
Mounting surface 412 and the side wall of magnetic yoke 411 form the structure of front-back staggered, so that it connects static contact 31 with enough spaces,
Space layout is more reasonable.
The thermal tripping component 42 is including double gold plaques 421, double golden pull rods 422, double golden springs, viscous as shown in Fig. 1 and Figure 14
Sheeting adjusts screw, and double gold 422 one end of pull rod connect tripping, and the other end connects double gold plaques 421, when the failures such as overload occur,
Double gold plaque temperature distortions pull lock to realize tripping by double golden pull rods 422, and specific structure principle is the prior art, here
It does not repeat them here.
Wherein, the second limiting slot 111 is formed on the intermediate bulkhead 11, double golden pull rods 422 are matched with double gold plaques 421
One end of conjunction is arranged in the second limiting slot 111, double so as to ensure by the way that limit is fixed in the second limiting slot 11
The golden installation of pull rod 422 is stablized.
As shown in Figure 15-21, the arc-extinguishing mechanism 5 is equipped with two groups, and is respectively arranged at 11 two sides of intermediate bulkhead and difference
It is corresponding with the static contact 31 of two sides；5 arc-extinguish chamber 51 of arc-extinguishing mechanism, arc-shaped arc striking piece 52, magnetic conductive board 53 and two pieces
Symmetrically arranged mounting plate 54.
The magnetic conductive board 53 includes two panels magnetic conduction sheet 531 disposed in parallel and the connection sheet for connecting two panels magnetic conduction sheet 531
532；One of mounting plate fixing clamp is set to intermediate bulkhead 11 and static contact 31, and another piece of mounting plate fixing clamp is set to shell side
Slot 541 compatible with magnetic conduction sheet 531 is formed between wall and static contact 31, and on the mounting plate 54；The magnetic conductive board
53 are inserted into slot 541 and 54 secure fit of mounting plate by magnetic conduction sheet 531.
The magnetic conduction sheet 531 directly realizes secure fit with mounting plate 54 in such a way that grafting buckles, and structure is simple, peace
Dress is convenient, can greatly improve the working efficiency of assembling.
31 bottom of static contact is bent towards 51 direction of arc-extinguish chamber, and forms 51 structure of U-lag, 54 court of mounting plate
Positive stop lug boss 542 compatible with U-lag 311 is formed on the side of static contact 31；The positive stop lug boss 542 and U-lag
The clamping of 311 phases.
The bending structure of the static contact 31 can not only realize striking effect when breaker disjunction, can be fast by electric arc
Speed introduces arc-extinguish chamber, while limit clamping can be realized with mounting plate 54, it is ensured that the Fast Installation of mounting plate 54, it is ensured that mounting plate
54 installations are firm.
The arc-shaped arc striking piece 52 is fixedly mounted on intermediate bulkhead 41, including curved portion 521 and 521 liang of curved portion
The upper interconnecting piece 522 and lower interconnecting piece 523 at end, the upper interconnecting piece 522 form T-shaped structure with curved portion 521；It is described to lead
It is formed with groove 533 corresponding with upper interconnecting piece 522 on magnetic sheet 531 and is correspondingly formed groove structure on mounting plate 54 certainly,
The curved portion 521 of the arc-shaped arc striking piece 52 is located between two pieces of mounting plates 54, and upper interconnecting piece 522 is stuck in two panels magnetic conduction sheet
In 531 groove 233.
The magnetic conductive board 53 by groove 533 and connection sheet 532 can be realized with arc-shaped arc striking piece 52 one it is stable
It is engaged by clamping, it is not only easy for installation, but also further ensure that stablizing for magnetic conductive board 23 is installed.
In addition, be equipped with can be with the card slot 112 of lower 223 phase card of interconnecting piece for the intermediate bulkhead 1, and it can be with upper interconnecting piece
The chuck 113 of 222 phases clamping, the arc-shaped arc striking piece 52 are fixed on intermediate bulkhead 11, the arc-shaped arc striking piece
52 are installed on intermediate bulkhead 11 by way of clamping, so that the installation of arc-shaped arc striking piece 52 is also more convenient.
Further, the arc-shaped arc striking piece 52 on two groups of arc-extinguishing mechanisms 5 is connected to form one formula by upper interconnecting piece 522
Structure, the intermediate connections between the chuck 113 and the upper interconnecting piece 522 of two groups of arc-shaped arc striking pieces 52 mutually block, so that card
Binding structure is simpler, and snap effect is also more preferable.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
Every technical staff's notice: of the invention although the present invention is described according to above-mentioned specific embodiment
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
Claims (9)
1. a kind of double-contact breaker, including shell (1) and be mounted on the intracorporal operating mechanism of shell (2), static contact mechanism (3),
Tripping mechanism (4), arc-extinguishing mechanism (5), connecting terminal (6)；
The operating mechanism (2) includes handle (21), U type connecting rod (22), lever (23), tripping (24), lock (25), moving contact
Bracket (26), double-contact moving contact (27)；The handle (21) and lever (23) are pivoted on respectively on shell (1), described
Tripping (24), lock (25) and moving contact rack (26) be pivoted on the lever (23) respectively, the handle (21) with
Pass through U type connecting rod (22) between tripping (24) to connect, the tripping (24) and lock (25) are respectively provided with and are suitable for the two locking
Hasp face, the double-contact moving contact (27) are fixedly mounted on moving contact rack (26)；
It is characterized by: the operating mechanism (2) further includes heat-insulated energy storing members (28), energy-stored spring (29), rotary shaft (210),
Lever (23) two sides have been correspondingly formed the first installation side plate (231), have been correspondingly formed on first installation side plate (231)
Compatible first mounting hole (232) with rotary shaft (210)；
The moving contact rack (26) is arranged between two the first installation side plates (231) comprising bottom plate (261) and bottom plate
(261) the second installation side plate (262) that two sides are correspondingly arranged, is formed on second installation side plate (262) and the first installation
Corresponding second mounting hole (263) in hole (232)；
The heat-insulated energy storing members (28) use insulated heat material, and are fixedly mounted between two the second installation side plates (262),
Heat-insulated energy storing members (28) upper end is formed with the contact surface (281) with handle (21) cooperation, the heat-insulated energy storing members (28) two
Side is then formed with the compatible positioning convex platform (282) with the second mounting hole (263), and the positioning convex platform (282) is caught in the second peace
It fills in hole (263), and is formed with the perforation (283) concentric with the first mounting hole (232) on positioning convex platform (282)；
The rotary shaft (210) passes through the first mounting hole (232), perforation (283) and is mounted on shell (1).
2. double-contact breaker according to claim 1, it is characterised in that: the energy-stored spring (29) uses torsion spring；
Heat-insulated energy storing members (28) two sides are formed with the cylinder (284) being adapted to torsion spring, second installation side plate (262) it is upper
End is formed with the first limiting section (264) with lever (23) limit cooperation, and lower end is formed with to be matched with twisting leg for torsion spring
Second limiting section (265)；Lever (23) upper end is formed with the third limiting section matched with torsion spring intermediate connecting rod
(233).
3. double-contact breaker according to claim 1, it is characterised in that: be formed with the first limit in the middle part of the lever (23)
Position slot (234), the tripping (24) are equipped with the first positive stop lug boss (241) being adapted to the first limiting slot (234), first limit
Position boss (241) end is formed with the first hasp face (242), and the lock (25) is equipped with to be adapted to the first limiting slot (234)
Second positive stop lug boss (251), the second positive stop lug boss (251) end are formed with matched with the first hasp face (242)
Two hasp faces (252).
4. double-contact breaker according to claim 1, it is characterised in that: the shell (1) includes in shell and shell
The intermediate bulkhead (11) that shell or so is separated；
The tripping mechanism (4) includes electromagnetic trip component (41), and the electromagnetic trip component (41) includes in U-typed structure
Magnetic yoke (411)；
The static contact mechanism (3) includes two static contacts (31) for being separately positioned on intermediate bulkhead (11) two sides, described in two
Static contact (31) is corresponding with two movable contacts of double-contact moving contact (27) respectively, during one of static contact is fixedly mounted on
On spacing board (11), another static contact is connected with magnetic yoke (411)；
The mounting surface (412) and magnetic yoke (411) front-back staggered of magnetic yoke (411) and static contact cooperation are arranged.
5. double-contact breaker according to claim 4, it is characterised in that: the tripping mechanism (4) further includes thermal tripping
Component (42), the thermal tripping component (42) include double gold plaques (421), double golden pull rods (422)；
It is formed with the second limiting slot (111) on the intermediate bulkhead (11), double golden pull rod (422) one end connection locks
(25), other end setting is in the second limiting slot (111), and with double gold plaques (421) corresponding matching.
6. double-contact breaker according to claim 4, it is characterised in that: the arc-extinguishing mechanism (5) is equipped with two groups, and divides
It is not set to intermediate bulkhead (11) two sides and corresponding with the static contact of two sides (31) respectively；Arc-extinguishing mechanism (5) arc-extinguish chamber
(51), arc-shaped arc striking piece (52), magnetic conductive board (53)；
The magnetic conductive board (53) includes two panels magnetic conduction sheet disposed in parallel (531) and the connection for connecting two panels magnetic conduction sheet (531)
Piece (532)；
Every group of arc-extinguishing mechanism (5) further includes two pieces of symmetrically arranged mounting plates (54), during one of mounting plate fixing clamp is set to
Spacing board (11) and static contact (31), another piece of mounting plate fixing clamp are set between housing sidewall and static contact (31), and described
It is formed on mounting plate (54) and magnetic conduction sheet (531) compatible slot (541)；
The magnetic conductive board (53) passes through magnetic conduction sheet (531) insertion slot (541) and mounting plate (54) secure fit.
7. double-contact breaker according to claim 6, it is characterised in that: static contact (31) bottom is towards arc-extinguish chamber
(51) direction is bent, and forms U-lag (51) structure, the mounting plate (54) towards be formed on the side of static contact (31) with
The compatible positive stop lug boss (542) of U-lag (311)；The positive stop lug boss (542) is mutually clamped with U-lag (311).
8. double-contact breaker according to claim 6, it is characterised in that: the arc-shaped arc striking piece (52) is fixedly mounted
On intermediate bulkhead (11), upper interconnecting piece (522) and lower interconnecting piece including curved portion (521) and curved portion (521) both ends
(523), the upper interconnecting piece (522) and curved portion (521) form T-shaped structure；
Groove (533) corresponding with upper interconnecting piece (522), the arc-shaped arc striking piece are formed on the magnetic conduction sheet (531)
(52) curved portion (521) is located between two pieces of mounting plates (54), and upper interconnecting piece (522) is stuck in two panels magnetic conduction sheet (531)
In groove (533).
9. double-contact breaker according to claim 8, it is characterised in that: the intermediate bulkhead (11) is equipped with can be under
The card slot (112) that interconnecting piece (523) mutually blocks, and the chuck (113) that can be mutually clamped with upper interconnecting piece (522), it is described arc-shaped
Arc striking piece (52) is fixed on intermediate bulkhead (11)；
Arc-shaped arc striking piece (52) on two groups of arc-extinguishing mechanisms (5) is connected to form one formula structure by upper interconnecting piece (522), institute
The intermediate connections stated between chuck (113) and the upper interconnecting piece (522) of two groups of arc-shaped arc striking pieces (52) mutually block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366727.6A CN109273330B (en) | 2018-11-16 | 2018-11-16 | Double-contact breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366727.6A CN109273330B (en) | 2018-11-16 | 2018-11-16 | Double-contact breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109273330A true CN109273330A (en) | 2019-01-25 |
| CN109273330B CN109273330B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811366727.6A Active CN109273330B (en) | 2018-11-16 | 2018-11-16 | Double-contact breaker |
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| Country | Link |
|---|---|
| CN (1) | CN109273330B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI821036B (en) * | 2022-11-22 | 2023-11-01 | 士林電機廠股份有限公司 | Miniature circuit breaker dual independent circuit mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| KR20160117072A (en) * | 2015-03-31 | 2016-10-10 | 현대중공업 주식회사 | Cover of mccb with radiant heat structure |
| CN209071238U (en) * | 2018-11-16 | 2019-07-05 | 加西亚电子电器股份有限公司 | A kind of double-contact breaker |
-
2018
- 2018-11-16 CN CN201811366727.6A patent/CN109273330B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134588A (en) * | 2014-07-17 | 2014-11-05 | 正泰集团股份有限公司 | Operation device of miniature multi-pole circuit breaker |
| KR20160117072A (en) * | 2015-03-31 | 2016-10-10 | 현대중공업 주식회사 | Cover of mccb with radiant heat structure |
| CN209071238U (en) * | 2018-11-16 | 2019-07-05 | 加西亚电子电器股份有限公司 | A kind of double-contact breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI821036B (en) * | 2022-11-22 | 2023-11-01 | 士林電機廠股份有限公司 | Miniature circuit breaker dual independent circuit mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109273330B (en) | 2024-01-30 |
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