CN203055839U - Novel miniature circuit breaker - Google Patents
Novel miniature circuit breaker Download PDFInfo
- Publication number
- CN203055839U CN203055839U CN 201320036883 CN201320036883U CN203055839U CN 203055839 U CN203055839 U CN 203055839U CN 201320036883 CN201320036883 CN 201320036883 CN 201320036883 U CN201320036883 U CN 201320036883U CN 203055839 U CN203055839 U CN 203055839U
- Authority
- CN
- China
- Prior art keywords
- iron core
- circuit breaker
- miniature circuit
- housing
- push rod
- 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 - Fee Related
Links
Images
Abstract
A novel miniature circuit breaker is disclosed to mainly solve the problem that a present miniature circuit breaker is insensitive and will not trip when leakage current is low. The novel miniature circuit breaker is characterized in that a mandril is arranged in a shell; the mandril is fixed in the shell through a pin shaft; one end of an iron core is provided with a groove which contacts with the mandril; one end of the mandril contacts with a lock catch; and the iron core is in a linkage fit with the lock catch. The novel miniature circuit breaker provided by the utility model is sensitive in tripping and also can trip timely when the leakage current is low.
Description
Technical field
The utility model relates to a kind of circuit breaker, is specifically related to a kind of novel miniature circuit breaker.
Background technology
Circuit breaker is a kind of existing hand switch effect, can transship automatically again and the electrical equipment of short-circuit protection.It can be used to distribute electric energy; do not start asynchronous motor continually; power circuit and motor etc. are carried out protection, can automatic shutdown circuit when serious overload or short circuit and fault such as under-voltage take place for their, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.And behind the disjunction fault current, generally do not need to change parts, therefore obtained to use widely.
In order to realize earth leakage protective, zero sequence current mutual inductor, arithmetic and control unit and magnetictrip often are set in mechanism in the existing miniature circuit breaker.Zero sequence current mutual inductor amplifies by the arithmetic and control unit signal then and handles mainly for detection of induced current, controls the magnetictrip action at last, and the pushing button arm rotates, and makes the snap close action, realizes threading off, and makes moving contact and the fixed contact disjunction of circuit breaker.This arm of turning round is generally " z " type, and an end can be held by the magnetic force that coil produces, and the other end contacts with snap close.During work because moment is less, leakage current hour, mechanism is difficult to thread off, and causes mechanism's sensitivity lower.
The utility model content
In order to overcome disadvantages of background technology, the utility model provides a kind of novel miniature circuit breaker, and it is insensitive mainly to have solved existing miniature circuit breaker, the problem that leakage current hour is not threaded off.
The technical scheme that the utility model adopts is: a kind of novel miniature circuit breaker, comprise housing, be provided with zero sequence current mutual inductor in the described housing, electric sub-member plate, coil, iron core, spring, snap close, described iron core is fixed in the housing, the all sides of described iron core are provided with coil, described zero sequence current mutual inductor is connected with electric sub-member plate, described coil one end is connected with zero sequence current mutual inductor, one end is connected with binding post, be provided with push rod in the described housing, described push rod is fixed in the housing by bearing pin, described iron core one end is provided with groove, described groove contacts with push rod, and described push rod one end contacts with snap close, and described iron core and snap close are linked.Described iron core is fixed in the round shell, and described iron core one end stretches out round shell, is provided with back-moving spring between described round shell bottom and the iron core end face.Also be provided with cue button on the described housing, described cue button and snap close are linked.
The beneficial effects of the utility model are: owing to improved mechanism, do not adopt " z " type to turn round arm, adopt the mode of the rotation touching of push rod, prolonged rotation axis, increased moment, improved the sensitivity of mechanism, when having less leakage current, also can in time thread off and open circuit.
Description of drawings
Fig. 1 is structural representation view of the present utility model.
1-housing among the figure, 2-zero sequence current mutual inductor, 3-electric sub-member plate, 4-coil, 5-iron core, 51-groove, 6-spring, 7-binding post, 8-push rod, 9-bearing pin, 10-cue button.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
As shown in Figure 1, a kind of novel miniature circuit breaker, comprise housing 1, be provided with zero sequence current mutual inductor 2 in the described housing 1, electric sub-member plate 3, coil 4, iron core 5, spring 6, snap close, described iron core 5 is fixed in the housing 1, described iron core 5 all sides are provided with coil 4, described zero sequence current mutual inductor 2 is connected with electric sub-member plate 3, described coil 4 one ends are connected with zero sequence current mutual inductor 2, one end is connected with binding post 7, be provided with push rod 8 in the described housing 1, described push rod 8 is fixed in the housing 1 by bearing pin 9, and described iron core 5 one ends are provided with groove 51, and described groove 51 contacts with push rod 8, described push rod 8 one ends contact with snap close, and described iron core 5 is linked with snap close.Described iron core 5 is fixed in the round shell, and described iron core 5 one ends stretch out round shell, is provided with back-moving spring 9 between described round shell bottom and iron core 5 end faces.Also be provided with cue button 10 on the described housing 1, described cue button 10 is linked with snap close.
The concrete use of the utility model is as follows: during work, when there being leakage current, received by zero sequence current mutual inductor 2, by electric sub-member plate 3 amplified currents, flow through coil 4 and produce induced field, promote iron core 5, drive push rod 8 motions simultaneously, push rod 8 touching snap closes are threaded off mechanism.
The beneficial effect of utility model is: owing to improved mechanism, do not adopt " z " type to turn round arm, adopt the mode of the rotation touching of push rod, prolonged rotation axis, increased moment, improved the sensitivity of mechanism, when having less leakage current, also can in time thread off and open circuit.
Claims (3)
1. novel miniature circuit breaker, comprise housing (1), be provided with zero sequence current mutual inductor (2) in the described housing (1), electric sub-member plate (3), coil (4), iron core (5), spring (6), snap close, described iron core (5) is fixed in the housing (1), the all sides of described iron core (5) are provided with coil (4), described zero sequence current mutual inductor (2) is connected with electric sub-member plate (3), described coil (4) one ends are connected with zero sequence current mutual inductor (2), one end is connected with binding post (7), it is characterized in that: be provided with push rod (8) in the described housing (1), described push rod (8) is fixed in the housing (1) by bearing pin (9), described iron core (5) one ends are provided with groove (51), described groove (51) contacts with push rod (8), described push rod (8) one ends contact with snap close, and described iron core (5) is linked with snap close.
2. novel miniature circuit breaker according to claim 1, it is characterized in that: described iron core (5) is fixed in the round shell, and described iron core (5) one ends stretch out round shell, are provided with back-moving spring (9) between described round shell bottom and iron core (5) end face.
3. novel miniature circuit breaker according to claim 1 is characterized in that: also be provided with cue button (10) on the described housing (1), described cue button (10) is linked with snap close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036883 CN203055839U (en) | 2013-01-22 | 2013-01-22 | Novel miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036883 CN203055839U (en) | 2013-01-22 | 2013-01-22 | Novel miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055839U true CN203055839U (en) | 2013-07-10 |
Family
ID=48738766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036883 Expired - Fee Related CN203055839U (en) | 2013-01-22 | 2013-01-22 | Novel miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441047A (en) * | 2013-09-16 | 2013-12-11 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN105070611A (en) * | 2015-08-05 | 2015-11-18 | 浙江凯发电气股份有限公司 | Tripping mechanism of residual current circuit breaker |
-
2013
- 2013-01-22 CN CN 201320036883 patent/CN203055839U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441047A (en) * | 2013-09-16 | 2013-12-11 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN103441047B (en) * | 2013-09-16 | 2015-05-20 | 安德利集团有限公司 | Tripping trigger device for small residual-current circuit breaker |
| CN105070611A (en) * | 2015-08-05 | 2015-11-18 | 浙江凯发电气股份有限公司 | Tripping mechanism of residual current circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106057600B (en) | Reclosing device of circuit breaker | |
| CN104576235A (en) | Automatic reclosing lock device of miniature circuit breaker | |
| CN203055839U (en) | Novel miniature circuit breaker | |
| CN205692785U (en) | Small-sized electric leakage reclosure breaker | |
| CN107785217A (en) | A kind of Intelligent electronic optical pole breaker of plastic casing | |
| CN204407268U (en) | A kind of miniature circuit breaker switching off/on device | |
| CN206460924U (en) | A kind of remaining RCCB | |
| CN201780948U (en) | Arc striking mechanism of low-voltage apparatus breaker | |
| CN202695281U (en) | Manual switching-off device for permanent magnet vacuum circuit breaker | |
| CN206961779U (en) | A kind of miniature circuit breaker and automatic division brake control device | |
| CN202076202U (en) | Over/under-voltage protective device of miniature breaker | |
| CN204407270U (en) | A kind of circuit breaker failure dropout performance element | |
| CN202423174U (en) | Intelligent ammeter breaker | |
| CN205016486U (en) | Cross under -voltage release | |
| CN205177692U (en) | Novel permanent magnetism vacuum circuit breaker based on use electric protection | |
| CN203165791U (en) | Arc light fast protection integrated switch | |
| CN204407860U (en) | The control circuit of circuit breaker Undertension shunt opening integrated electrical apparatus release | |
| CN204668264U (en) | Miniature circuit breaker | |
| CN212874398U (en) | Electric leakage tripping module with auxiliary and alarm functions | |
| CN203218115U (en) | Opening/closing device of ring network cabinet breaker | |
| CN203055833U (en) | Novel breaker's moving contact | |
| CN109637909B (en) | Tripping power mechanism directly driven by residual current and debugging method thereof | |
| CN203055821U (en) | Novel breaker | |
| CN203055828U (en) | Novel miniature circuit breaker | |
| CN203415517U (en) | Novel intelligent breaker based on two-phase magnetic materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140122 |