CN108648969A - A kind of double breaking points miniature circuit breaker - Google Patents
A kind of double breaking points miniature circuit breaker Download PDFInfo
- Publication number
- CN108648969A CN108648969A CN201810688257.9A CN201810688257A CN108648969A CN 108648969 A CN108648969 A CN 108648969A CN 201810688257 A CN201810688257 A CN 201810688257A CN 108648969 A CN108648969 A CN 108648969A
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- CN
- China
- Prior art keywords
- contact
- lever
- phase
- lock
- arc
- 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.)
- Granted
Links
- 230000003068 static effect Effects 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 230000000171 quenching effect Effects 0.000 claims abstract description 19
- 238000010791 quenching Methods 0.000 claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 239000010931 gold Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 238000003466 welding Methods 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000004826 seaming Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241001274660 Modulus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination 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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
-
- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
Abstract
A kind of double breaking points miniature circuit breaker, it includes a shell, is equipped with operating mechanism in the shell, L phase contact systems, N phase contact systems, L phase arc quenching systems, and N phase arc quenching systems constitute the electromagnetic system and thermal tripping system of current path with L phases；Lever, lock are also equipped in shell, lock and lever are rotated along same axis, and lock is connected by spring with lever flexibility；The reaction spring other end of lever is stuck on the column of pedestal；Handle is movably connected by U type connecting rod and lever, lock, and lock is movably connected further through double golden release levers with double gold；The lever both sides are respectively equipped with independent moving contact, and moving contact is connected by contact pressure spring with lever, and moving contact can be rotated centered on the positioning column on lever, and the contact of both sides is separated by middle cover again；Corresponding static contact forms two groups of independent contact systems, realizes the connecting and disconnecting of firewire and zero curve；It has simple in structure, rationally distributed, the features such as arc quenching effect is good, and service life is long.
Description
Technical field
The present invention relates to a kind of double breaking points miniature circuit breakers, belong to breaker technical field.
Background technology
Miniature circuit breaker uses more and more extensive at present, for places such as industrial, commercial, high-rise and residential premises, mainly
As office building, household and the illumination of similar site, the overload of distribution line and equipment, short-circuit protection, also as circuit
Infrequently break-make is used with conversion；But breaker existing 18mm moduluses or that zero curve can disconnect, zero curve, which does not design, to go out
Arc system, and the arc-extinguish chamber final vacuum channel of zero curve is smaller, easily causes electric arc rebound, and the component of operating mechanism is more, shadow
The break and service life of breaker are rung.
Invention content
It is an object of the invention to overcome the shortcomings of the prior art, and offer is a kind of simple in structure, rationally distributed, goes out
Arc effect is good, double breaking points miniature circuit breaker with long service life.
The purpose of the present invention is come what is completed, a kind of double breaking points miniature circuit breaker, it includes by following technical solution
One shell is equipped with operating mechanism, L phase contact systems, N phase contact systems, L phase arc quenching systems, N phase arc extinguishings in the shell
System constitutes the electromagnetic system and thermal tripping system of current path with L phases；
Lever, lock are also equipped in shell, lock and lever are rotated along same axis, and lock passes through spring and lever flexibility phase
Even；The reaction spring other end of lever is stuck on the column of pedestal；Handle is movably connected by U type connecting rod and lever, lock, is latched
It is movably connected with double gold further through double golden release levers；
The lever both sides are respectively equipped with independent moving contact, and moving contact is connected by contact pressure spring with lever, move and touch
Head can be rotated centered on the positioning column on lever, and the contact of both sides is separated by middle cover again；Corresponding static contact forms
Two groups of independent contact systems, realize the connecting and disconnecting of firewire and zero curve；
The arc-extinguish chamber rear of the arc quenching system is formed with stair-stepping gas vent, and zero curve is also equipped with arc-extinguish chamber；
The rotatable handle of operating system drives connected U type connecting rod movement, is formed by latching seaming, U type connecting rod, lever boss
Occlusion mode, push lever to be rotated along locating shaft, make lock close to static iron core and double golden dropout draw bars, moving contact and stationary contact
Head contact, connects breaker.
As preferred：It loads onto after connecting terminal on pedestal, with one of them the N line static contacts one end for being welded with contact
Moving contact forms N phase contact systems；
The arc ignition portion and arc-extinguish chamber of N phases arc striking piece and N phase stationary contact head-tails form N phase arc quenching systems, N phases arc striking piece and load
Side N phase connection plates are rigidly connected by welding manner, and N phase loads side terminal plate welding manner is dynamic tactile with N phases by copper conductor
Head is rigidly connected, and connecting terminal is fitted on each terminal plate；
The mode that L phases are welded with the static contact and electromagnetic system riveted of contact is rigidly connected, and L phase contacts are formed with another moving contact
System, the static contact of L phases is again with yoke and core assembly composition electromagnetic system and on pedestal；It is iron core sleeve, dynamic iron core, quiet
Iron core, dynamic iron core mandril, dynamic iron core reaction spring composition core assembly are installed in current coil；Static iron core and yoke and stationary contact
Head is rigidly connected through riveted mode, and static contact is rigidly connected with coil with welding manner, the other end of coil and connecing for L phase inlet wires
Line plate is rigidly connected by welding, and stationary contact head-tail prolongation, arc-extinguish chamber, the L phase arc striking pieces of L phases form L phase arc quenching systems；
L phases arc striking piece, load side lug plate, be flexible coupling, bimetal leaf is rigidly connected by welding manner；The other end of bimetal leaf is logical
It crosses copper conductor to be rigidly connected with L phase moving contacts, connecting terminal is fitted on each terminal plate.
As preferred：It is provided with reaction spring at the handle, lock reaction spring is provided at lock, is installed on
Dynamic iron core reaction spring is also equipped in static iron core in coil, lever is also equipped with lever reaction spring；
It is provided with to perceive on the shell and indicates red hole on lock, the green of closing of power circuit breaker and disconnection is labeled on lever
Colour code is known；When moving contact is just contacted with static contact, handle also needs to rotate, and pushes lever to be rotated along axis by U type connecting rod, moving contact
Because of the resistance by static contact, moving contact positioning column rotation of the moving contact on lever forms tangent cunning with the face of static contact
Dynamic rotation.
The invention belongs to improvements over the prior art, it has simple in structure, and rationally distributed, arc quenching effect is good, uses the longevity
Order the features such as long.
Description of the drawings
Fig. 1 is the double-breakpoint structure schematic diagram of the present invention.
Fig. 2 is the L phase structure figures of the present invention.
Fig. 3 is the N phase structure figures of the present invention.
Fig. 4 is the closed state figure of breaker of the present invention.
Fig. 5 is the electromagnetic system structure figure of the present invention.
Fig. 6 is the core assembly structure figure of the present invention.
Fig. 7 is the operating mechanism schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the present invention will be described in detail：Shown in Fig. 1-7, a kind of double breaking points of the present invention are small
Type breaker, it includes a shell, and operating mechanism, L phase contact systems, N phase contact systems, L are equipped in the shell
Phase arc quenching system, N phase arc quenching systems constitute the electromagnetic system and thermal tripping system of current path with L phases；
Lever 28, lock 29 are also equipped in shell, lock 29 and lever 28 are rotated along same axis 27, and lock 29 passes through spring 26
It is connected with 28 flexibility of lever；25 other end of reaction spring of lever 28 is stuck on the column of pedestal；Handle 30 by U type connecting rod 31 with
Lever 28, lock 29 are movably connected, and lock 29 is movably connected further through double golden release levers with double gold；
28 both sides of lever are respectively equipped with independent moving contact 19,20, moving contact 19,20 by contact pressure spring 23,
24 are connected with lever 28, and moving contact can be rotated centered on the positioning column on lever, and the contact of both sides is separated by middle cover again；With it
Corresponding static contact 15,16 forms two groups of independent contact systems, realizes the connecting and disconnecting of firewire and zero curve；
The arc-extinguish chamber rear of the arc quenching system is formed with stair-stepping gas vent, and zero curve is also equipped with arc-extinguish chamber；
The rotation of handle 30 of operating system drives connected U type connecting rod 31 to move, by latching seaming, U type connecting rod, lever boss
The occlusion mode of formation pushes lever to be rotated along locating shaft, makes lock close to static iron core and double golden dropout draw bars, moving contact with
Static contact contacts, and connects breaker.
As shown in the figure, the N line static contacts one end for being welded with contact is loaded onto after connecting terminal on pedestal, dynamic with one of them
Contact forms N phase contact systems；
The arc ignition portion and arc-extinguish chamber of N phases arc striking piece and N phase stationary contact head-tails form N phase arc quenching systems, N phases arc striking piece and load
Side N phase connection plates are rigidly connected by welding manner, and N phase loads side terminal plate welding manner is dynamic tactile with N phases by copper conductor
Head is rigidly connected, and connecting terminal is fitted on each terminal plate；
The mode that L phases are welded with the static contact and electromagnetic system riveted of contact is rigidly connected, and L phase contacts are formed with another moving contact
System, the static contact of L phases is again with yoke and core assembly composition electromagnetic system and on pedestal；It is iron core sleeve, dynamic iron core, quiet
Iron core, dynamic iron core mandril, dynamic iron core reaction spring composition core assembly are installed in current coil；Static iron core and yoke and stationary contact
Head is rigidly connected through riveted mode, and static contact is rigidly connected with coil with welding manner, the other end of coil and connecing for L phase inlet wires
Line plate is rigidly connected by welding, and stationary contact head-tail prolongation, arc-extinguish chamber, the L phase arc striking pieces of L phases form L phase arc quenching systems；
L phases arc striking piece, load side lug plate, be flexible coupling, bimetal leaf is rigidly connected by welding manner；The other end of bimetal leaf is logical
It crosses copper conductor to be rigidly connected with L phase moving contacts, connecting terminal is fitted on each terminal plate.
It is provided with reaction spring at handle of the present invention, lock reaction spring is provided at lock, is installed on line
Dynamic iron core reaction spring is also equipped in static iron core in circle, lever is also equipped with lever reaction spring；
It is provided with to perceive on the shell and indicates red hole on lock, the green of closing of power circuit breaker and disconnection is labeled on lever
Colour code is known；When moving contact is just contacted with static contact, handle also needs to rotate, and pushes lever to be rotated along axis by U type connecting rod, moving contact
Because of the resistance by static contact, moving contact positioning column rotation of the moving contact on lever forms tangent cunning with the face of static contact
Dynamic rotation.
Embodiment：Shown in Fig. 1-7, a kind of miniature circuit breaker of double breaking points of the present invention, including shell, operation machine
Structure, contact system, arc quenching system, thermal tripping system, electromagnetic system.
The shell includes pedestal, middle cover and lid；
The operating system includes handle 30, U type connecting rod 31, lock 29, lever 28, axis 27, moving contact 20；
Contact system includes：L phases and N phases, wherein L phases have arc-extinguish chamber 21, the tail portion of L phases static contact panel 8, arc striking piece 1, lid and middle cover
The stair-stepping gas vent formed；N phases have the tail portion of arc-extinguish chamber 22, N phases static contact panel 9, the rank that arc striking piece 5, bottom and middle cover are formed
The gas vent of scalariform；
Thermal tripping system includes：Arc striking piece 1, bimetal leaf 2, be flexible coupling 3 and terminal plate 4；
Electromagnetic system includes：Yoke 31, core assembly 18, coil 17；
Core assembly includes：Iron core sleeve 181, static iron core 182, dynamic iron core 183, dynamic iron core mandril 184；
The handle 30 and dynamic iron core 183 is fitted with reaction spring, and counter-force is also separately installed on two moving contacts 19,20
Spring 23,24；Reaction spring 25 is also installed on lever 28, reaction spring 26 is also installed on lock 29.
Along arrow direction driving handle 30 shown in Fig. 2, U type connecting rod 32 is driven；One end of U type connecting rod 32 is mounted in handle 30
Hole in, the other end be connected to lock 29 with lever 28 formed articulation port in；Axis 27 with pneumatic operating mechanism rotates, when U-shaped
After connecting rod 32 crosses the dead point of handle 30, the turn-on power loss of breaker is completed, at this time shown in state diagram Fig. 4 of short-circuiting device.
Along arrow direction driving handle 30 shown in Fig. 4, U type connecting rod 32 is driven, after U type connecting rod 32 crosses handle dead point,
For handle 30 under the rental of its reaction spring, lever 28 returns to state under the action of its reaction spring, completes open circuit
The off-state of device, as shown in Figure 2；When product "on" position, U type connecting rod 32 picks out face formation one with 28 boss of lever and opens
The upward obtuse angle of mouth；
Along the driving handle of arrow direction shown in Fig. 2 30, under the promotion of U type connecting rod 32, lever 28 revolves lever 28 along axis 27
Turn；When handle 30 rotates to bottom not yet, two moving contacts 19,20 under the drive of lever 28 respectively with static contact 15 and quiet
Contact 16 contacts, and handle 30 continues to rotate, and two moving contacts 19,20 are dynamic on lever 28 under the resistance of two static contacts 15,16
Contact positioning column rotates, and when moving contact 19 and static contact 15 contact, generates sliding and rolling friction, moving contact 20 and static contact 16
Also sliding and rolling friction are generated when contact.
It should be appreciated that above-described embodiment is a kind of explanation to the present invention, rather than to the scope of the present invention
Limitation, it is any without departing from present inventive concept under the premise of, the decoration of any structure, the change of proportionate relationship and size adjustment,
In the case where not influencing the attainable purpose of effect caused by the present invention and institute, all fall in the covering scope that the present invention protects.
Claims (3)
1. a kind of double breaking points miniature circuit breaker, it includes a shell, it is characterised in that：Operation machine is installed in the shell
Structure, L phase contact systems, N phase contact systems, L phase arc quenching systems, N phase arc quenching systems constitute the electromagnetic system of current path with L phases
System and thermal tripping system；
Lever, lock are also equipped in shell, lock and lever are rotated along same axis, and lock passes through spring and lever flexibility phase
Even；The reaction spring other end of lever is stuck on the column of pedestal；Handle is movably connected by U type connecting rod and lever, lock, is latched
It is movably connected with double gold further through double golden release levers；
The lever both sides are respectively equipped with independent moving contact, and moving contact is connected by contact pressure spring with lever, move and touch
Head can be rotated centered on the positioning column on lever, and the contact of both sides is separated by middle cover again；Corresponding static contact forms
Two groups of independent contact systems, realize the connecting and disconnecting of firewire and zero curve；
The arc-extinguish chamber rear of the arc quenching system is formed with stair-stepping gas vent, and zero curve is also equipped with arc-extinguish chamber；
The rotatable handle of operating system drives connected U type connecting rod movement, is formed by latching seaming, U type connecting rod, lever boss
Occlusion mode, push lever to be rotated along locating shaft, make lock close to static iron core and double golden dropout draw bars, moving contact and stationary contact
Head contact, connects breaker.
2. double breaking points miniature circuit breaker according to claim 1, it is characterised in that：It is welded with N line static contacts one end of contact
It is mounted on pedestal after loading onto connecting terminal, N phase contact systems is formed with one of moving contact；
The arc ignition portion and arc-extinguish chamber of N phases arc striking piece and N phase stationary contact head-tails form N phase arc quenching systems, N phases arc striking piece and load
Side N phase connection plates are rigidly connected by welding manner, and N phase loads side terminal plate welding manner is dynamic tactile with N phases by copper conductor
Head is rigidly connected, and connecting terminal is fitted on each terminal plate；
The mode that L phases are welded with the static contact and electromagnetic system riveted of contact is rigidly connected, and L phase contacts are formed with another moving contact
System, the static contact of L phases is again with yoke and core assembly composition electromagnetic system and on pedestal；It is iron core sleeve, dynamic iron core, quiet
Iron core, dynamic iron core mandril, dynamic iron core reaction spring composition core assembly are installed in current coil；Static iron core and yoke and stationary contact
Head is rigidly connected through riveted mode, and static contact is rigidly connected with coil with welding manner, the other end of coil and connecing for L phase inlet wires
Line plate is rigidly connected by welding, and stationary contact head-tail prolongation, arc-extinguish chamber, the L phase arc striking pieces of L phases form L phase arc quenching systems；
L phases arc striking piece, load side lug plate, be flexible coupling, bimetal leaf is rigidly connected by welding manner；The other end of bimetal leaf is logical
It crosses copper conductor to be rigidly connected with L phase moving contacts, connecting terminal is fitted on each terminal plate.
3. double breaking points miniature circuit breaker according to claim 1, it is characterised in that：Counter-force bullet is provided at the handle
Spring is provided with lock reaction spring at lock, is installed in the static iron core in coil and is also equipped with dynamic iron core reaction spring, thick stick
Bar is also equipped with lever reaction spring；
It is provided with to perceive on the shell and indicates red hole on lock, the green of closing of power circuit breaker and disconnection is labeled on lever
Colour code is known；When moving contact is just contacted with static contact, handle also needs to rotate, and pushes lever to be rotated along axis by U type connecting rod, moving contact
Because of the resistance by static contact, moving contact positioning column rotation of the moving contact on lever forms tangent cunning with the face of static contact
Dynamic rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688257.9A CN108648969B (en) | 2018-06-28 | 2018-06-28 | Double-breakpoint miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688257.9A CN108648969B (en) | 2018-06-28 | 2018-06-28 | Double-breakpoint miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108648969A true CN108648969A (en) | 2018-10-12 |
| CN108648969B CN108648969B (en) | 2023-12-01 |
Family
ID=63750202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810688257.9A Active CN108648969B (en) | 2018-06-28 | 2018-06-28 | Double-breakpoint miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108648969B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036982A (en) * | 2018-10-16 | 2018-12-18 | 中欧电气有限公司 | A kind of plug-in type miniature circuit breaker |
| CN110233090A (en) * | 2019-06-18 | 2019-09-13 | 美高电气科技有限公司 | A kind of pyromagnetic double adjustable breaker of plastic casing |
| CN110289198A (en) * | 2019-07-26 | 2019-09-27 | 贵州泰永长征技术股份有限公司 | A kind of current limliting and quick disjunction structure of miniature circuit breaker |
| CN110534382A (en) * | 2019-09-25 | 2019-12-03 | 周义才 | A kind of DPN air switch or leakage switch dynamic contact mechanism |
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| CN208538786U (en) * | 2018-06-28 | 2019-02-22 | 美高电气科技有限公司 | Double breaking points miniature circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036982A (en) * | 2018-10-16 | 2018-12-18 | 中欧电气有限公司 | A kind of plug-in type miniature circuit breaker |
| CN110233090A (en) * | 2019-06-18 | 2019-09-13 | 美高电气科技有限公司 | A kind of pyromagnetic double adjustable breaker of plastic casing |
| CN110233090B (en) * | 2019-06-18 | 2024-04-02 | 美高电气科技有限公司 | Thermomagnetic double-adjustable molded case circuit breaker |
| CN110289198A (en) * | 2019-07-26 | 2019-09-27 | 贵州泰永长征技术股份有限公司 | A kind of current limliting and quick disjunction structure of miniature circuit breaker |
| CN110289198B (en) * | 2019-07-26 | 2024-03-01 | 贵州泰永长征技术股份有限公司 | Current limiting and quick breaking structure of miniature circuit breaker |
| CN110534382A (en) * | 2019-09-25 | 2019-12-03 | 周义才 | A kind of DPN air switch or leakage switch dynamic contact mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108648969B (en) | 2023-12-01 |
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