CN204045530U - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
- Publication number
- CN204045530U CN204045530U CN201420515148.4U CN201420515148U CN204045530U CN 204045530 U CN204045530 U CN 204045530U CN 201420515148 U CN201420515148 U CN 201420515148U CN 204045530 U CN204045530 U CN 204045530U
- Authority
- CN
- China
- Prior art keywords
- housing
- handle
- contact
- snap close
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010891 electric arc Methods 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a kind of miniature circuit breaker, comprise housing and be arranged on handle, operating mechanism, electromagnetic system, arc-extinguish chamber, the binding post in housing, electromagnetic system is connected with fixed contact, on operating mechanism, corresponding fixed contact is provided with moving contact, form many electric arc grooves in the housing in described arc-extinguish chamber front, electric arc groove extends to arc chute from the contact position of moving contact and fixed contact.The utility model arranges electric arc groove and guides arc extinguishing in housing, improves the cooling effect of air, rapid heat dissipation, and electric arc groove and housing one-body molded, easy to process; Electromagnetic system is directly installed in housing, and coil is directly connected with fixed contact and binding post, eliminates yoke, has simplified number of components and procedure of processing.
Description
Technical field
The utility model relates to a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker is a kind of conventional electric switch, is mainly used in the various places such as industry, business, residential houses.Miniature circuit breaker can produce arcing when moving contact and fixed contact disjunction, need arc-extinguish chamber arc extinguishing, in order to electric arc is guided in arc-extinguish chamber as soon as possible, usually flash barrier is set in arc-extinguish chamber front and magnetic conduction sheet accelerates to enter arc extinguishing in arc-extinguish chamber with pilot arc, parts and assembly process that flash barrier and magnetic conduction sheet add miniature circuit breaker are set in housing, add processing cost; And existing miniature circuit breaker electromagnetic system is arranged in yoke usually, processing technology and the equal more complicated of structure, production cost is high.
Summary of the invention
For above-mentioned reasons, the purpose of this utility model is to provide the miniature circuit breaker that a kind of structure is simple, arc extinguishing ability is strong.
For achieving the above object, the utility model adopts a kind of miniature circuit breaker, comprise housing and be arranged on handle, operating mechanism, electromagnetic system, arc-extinguish chamber, the binding post in housing, electromagnetic system is connected with fixed contact, on operating mechanism, corresponding fixed contact is provided with moving contact, form many electric arc grooves in the housing in described arc-extinguish chamber front, electric arc groove extends to arc chute from the contact position of moving contact and fixed contact.
The utility model is set to described electromagnetic system further and comprises coil, iron core sleeve, and iron core sleeve is fixed in housing, and coil winding is outside iron core sleeve, and coil two ends are connected with fixed contact and binding post respectively.
The utility model is set to described operating mechanism further and comprises movable contact block, moving contact, snap close, tripping, U-shaped bar, handle, extension spring, two golden pull bar, moving contact is fixedly installed on movable contact block, tripping one end is hinged on movable contact block upper end, the other end forms U-shaped lever attachment hole, the waist through hole that in the middle part of movable contact block, formation one is horizontal, contact axle has been placed in waist through hole, snap close is hinged on contact axle, snap close extends to form locking bar towards tripping, locking bar top forms U-shaped lever attachment hole one end that step withstands on tripping, two golden pull bar one end is hinged on snap close, the other end is overlapped on bimetal leaf upper end, snap close torsion spring is provided with inside movable contact block, snap close one end is fixed on movable contact block, the other end is connected on snap close, extension spring one end is connected on housing, the other end is connected on the movable contact block of the top of waist through hole, U-shaped bar two ends are connected on handle with in the U-shaped lever attachment hole of tripping.
The utility model is set to described handle is provided with taper knob further, and handle forms buckle, forms draw-in groove inside taper knob, taper knob is held on handle with coordinating of buckle by draw-in groove.
The beneficial effects of the utility model in housing, arrange electric arc groove guide arc extinguishing, improves the cooling effect of air, rapid heat dissipation, and electric arc groove and housing one-body molded, easy to process; Electromagnetic system is directly installed in housing, and coil is directly connected with fixed contact and binding post, eliminates yoke, has simplified number of components and procedure of processing; Movable contact block is horizontally arranged with waist through hole, product closes or disconnects contact axle in the process of motion can be movable in waist through hole, when switch closes, by the comprehensive function of U-shaped bar and extension spring, movable contact block is moved to fixed contact, and for moving contact provides backlash compensation, and moving contact only needs to be fixed on movable contact block, eliminate the step that torsion spring is set between moving contact and contact base, make the structure of operating mechanism simpler; Taper knob is directly installed on handle by buckle, need not slippage enter from the side, easy for installation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram after the utility model specific embodiment removes upper cover.
Fig. 2 is the operating mechanism schematic diagram of the utility model specific embodiment.
Fig. 3 is the electromagnetic system schematic diagram of the utility model specific embodiment.
Fig. 4 is the handle explosive view of the utility model specific embodiment.
Embodiment
As Figure 1-Figure 4, specific embodiment of the utility model is a kind of miniature circuit breaker, the handle 2 comprising housing 1 and be arranged in housing 1, operating mechanism 3, electromagnetic system 4, arc-extinguish chamber 5, binding post 6, bimetal leaf 7, housing comprises base and upper cover, operating mechanism 3 comprises movable contact block 31, moving contact 32, snap close 33, tripping 34, extension spring 35, two golden pull bar 36, moving contact 32 is fixedly installed on movable contact block 31, tripping 34 one end is hinged on movable contact block 31 upper end, the other end is connected with handle 2 by U-shaped bar, the waist through hole 311 that in the middle part of movable contact block 31, formation one is horizontal, contact axle 312 has been placed in waist through hole 311, snap close 33 is hinged on contact axle 312, snap close 33 extends to form locking bar 331 towards tripping 34, locking bar 331 top forms step 332 and withstands in tripping 34, two golden pull bar 36 one end is hinged on snap close 33, the other end is overlapped on bimetal leaf 7 upper end, snap close torsion spring 313 is provided with inside movable contact block 31, snap close torsion spring 313 one end is fixed on movable contact block 31, the other end is connected on snap close 33, extension spring 35 one end is connected on housing 1, the other end is connected on the movable contact block 31 of the top of waist through hole 311, electromagnetic system 4 comprises coil 41, iron core sleeve 42, iron core sleeve 42 is fixed on housing 1, coil 41 is wrapped in outside iron core sleeve 42, coil 41 two ends are connected with fixed contact 43 and binding post 6 respectively, the corresponding moving contact 32 of fixed contact 43 is arranged, form many electric arc grooves 11 in the housing 1 in arc-extinguish chamber 5 front, electric arc groove 11 extends to arc chute 11 from the contact position of moving contact 32 and fixed contact 43, handle 2 is provided with taper knob 21, handle 2 both sides form buckle 22, a location notch 23 is formed centrally in top, inside taper knob 21, corresponding buckle 22 forms draw-in groove 24, corresponding location notch 23 forms locating piece 25, and taper knob 21 to be coordinated and location notch 23 is connected with handle 2 with the location fit of locating piece 25 by linking closely of draw-in groove 24 and buckle 22.
Claims (5)
1. a miniature circuit breaker, comprise housing and be arranged on handle, operating mechanism, electromagnetic system, arc-extinguish chamber, the binding post in housing, electromagnetic system is connected with fixed contact, on operating mechanism, corresponding fixed contact is provided with moving contact, it is characterized in that: form many electric arc grooves in the housing in described arc-extinguish chamber front, electric arc groove extends to arc chute from the contact position of moving contact and fixed contact.
2. miniature circuit breaker according to claim 1, is characterized in that: described electromagnetic system comprises coil, iron core sleeve, and iron core sleeve is fixed in housing, and coil winding is outside iron core sleeve, and coil two ends are connected with fixed contact and binding post respectively.
3. miniature circuit breaker according to claim 1 and 2, it is characterized in that: described operating mechanism comprises movable contact block, moving contact, snap close, tripping, U-shaped bar, handle, extension spring, two golden pull bar, moving contact is fixedly installed on movable contact block, tripping one end is hinged on movable contact block upper end, the other end forms U-shaped lever attachment hole, the waist through hole that in the middle part of movable contact block, formation one is horizontal, contact axle has been placed in waist through hole, snap close is hinged on contact axle, snap close extends to form locking bar towards tripping, locking bar top forms U-shaped lever attachment hole one end that step withstands on tripping, two golden pull bar one end is hinged on snap close, the other end is overlapped on bimetal leaf upper end, snap close torsion spring is provided with inside movable contact block, snap close one end is fixed on movable contact block, the other end is connected on snap close, extension spring one end is connected on housing, the other end is connected on the movable contact block of the top of waist through hole, U-shaped bar two ends are connected on handle with in the U-shaped lever attachment hole of tripping.
4. miniature circuit breaker according to claim 1 and 2, is characterized in that: described handle is provided with taper knob, handle forms buckle, form draw-in groove inside taper knob, and taper knob is held on handle with coordinating of buckle by draw-in groove.
5. miniature circuit breaker according to claim 3, is characterized in that: described handle is provided with taper knob, handle forms buckle, form draw-in groove inside taper knob, and taper knob is held on handle with coordinating of buckle by draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515148.4U CN204045530U (en) | 2014-09-03 | 2014-09-03 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420515148.4U CN204045530U (en) | 2014-09-03 | 2014-09-03 | A kind of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045530U true CN204045530U (en) | 2014-12-24 |
Family
ID=52246168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420515148.4U Expired - Lifetime CN204045530U (en) | 2014-09-03 | 2014-09-03 | A kind of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010811A (en) * | 2018-01-05 | 2018-05-08 | 行驱电气（上海）有限公司 | A kind of case for circuit breaker, arc-control device and breaker |
-
2014
- 2014-09-03 CN CN201420515148.4U patent/CN204045530U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010811A (en) * | 2018-01-05 | 2018-05-08 | 行驱电气（上海）有限公司 | A kind of case for circuit breaker, arc-control device and breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141224 |