CN202712091U - Plastic housing breaker - Google Patents
Plastic housing breaker Download PDFInfo
- Publication number
- CN202712091U CN202712091U CN 201220404806 CN201220404806U CN202712091U CN 202712091 U CN202712091 U CN 202712091U CN 201220404806 CN201220404806 CN 201220404806 CN 201220404806 U CN201220404806 U CN 201220404806U CN 202712091 U CN202712091 U CN 202712091U
- Authority
- CN
- China
- Prior art keywords
- housing
- breaker
- bimetallic strip
- bimetal leaf
- plastic housing
- 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
Landscapes
- Breakers (AREA)
Abstract
The utility model relates to a plastic housing breaker which solves the problem that the breaking structure of a conventional plastic housing breaker is complex and occupies a big housing space. The plastic housing breaker includes a housing, moving contacts, lock catches and wiring terminals. One side of the lock catch in the housing is provided with a releasing plate and a bimetallic strip in order. The releasing plate can swing between the lock catch and the bimetallic strip relative to the housing. The two ends of the bimetallic strip are connected with the moving contact and the wiring terminal via copper leads. The bimetallic strip is provided with a push rod which is corresponding to the releasing plate. The beneficial effects are that a conventional ferromagnetic breaking structure is changed into a bimetallic strip breaking structure, so the internal housing space is greatly reduced; besides, the bimetallic strip structure is simple, so the assembly is convenient, and the production cost is low.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing.
Background technology
Breaker of plastic casing is protective device important in the low-voltage distribution system, and it plays connection, disjunction running current in low-voltage distribution system, and having simultaneously provides overload protection, under voltage protection etc. to AC network circuit and power consumption equipment.Traditional breaker of plastic casing generally comprises housing, is provided with operating mechanism, release, thermo-magnetic system etc. in the housing.Breaker of plastic casing contains the escape unit usually, can automatically cut off electric current when electric current surpasses set point.The iron plate that its escape unit of existing breaker of plastic casing generally comprises iron core and is wrapped in coil on the iron core, can be attracted by iron core, and can make the device of snap close release.When transshipping, iron core attracts iron plate owing under the effect of coil, iron plate applying this moment iron core, and the other end of iron plate makes the tripper motion, thereby makes the snap close release, realizes separating of dynamic and static contact.But have following shortcoming in such structure: 1, iron core and coil generally occupy very large space in housing; 2, the production and processing cost of iron core and coil is higher, and the sensitivity of competitiveness 3, circuit breaker disjunction that has reduced product is generally non-adjustable.
Summary of the invention
Have disjunction complicated structure in the breaker of plastic casing in the background technology now for solving, occupy the larger problem in space in the housing, the utility model provides a kind of breaker of plastic casing.
The technical solution of the utility model is: a kind of breaker of plastic casing, comprise housing, moving contact, snap close and terminals, one side of described housing inner lock buckle is provided with dropout plate and bimetal leaf successively, dropout plate relatively housing swings between snap close and bimetal leaf, the two ends of described bimetal leaf link to each other with moving contact and terminals respectively by copper conductor, and described bimetal leaf is provided with the push rod corresponding with the plate of threading off.
As another kind of improvement the of the present utility model, described copper conductor welds mutually with bimetal leaf.
As another kind of improvement the of the present utility model, described push rod is threaded rod, and described threaded rod is fixed on the bimetal leaf by nut.
The beneficial effects of the utility model are, change original ferromagnetic formula disjunction structure into double-metal sheet type disjunction structure, reduced greatly space in the housing, and double-metal sheet type are relatively simple for structure, assembles more conveniently, and the while production cost is lower.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Among the figure, 1, housing; 2, moving contact; 3, snap close; 4, terminals; 5, dropout plate; 6, bimetal leaf; 7, copper conductor; 8, push rod; 9, nut.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
By shown in Figure 1, a kind of breaker of plastic casing, comprise housing 1, moving contact 2, snap close 3 and terminals 4, one side of described housing 1 inner lock buckle 3 is provided with dropout plate 5 and bimetal leaf 6 successively, dropout plate 5 relatively housing 1 swings between snap close 3 and bimetal leaf 6, the bottom of dropout plate 5 is provided with reset tension spring, the two ends of described bimetal leaf 6 link to each other with moving contact 2 and terminals 4 respectively by copper conductor 7, specifically, described copper conductor 7 all is to be connected by welding manner with moving contact 2, terminals 4, bimetal leaf 6.Described bimetal leaf 6 is provided with the push rod 8 corresponding with the plate 5 of threading off, and specifically, described push rod 8 is threaded rod, and described threaded rod is fixed on the bimetal leaf 6 by nut 9.When in the circuit during current overload, copper conductor produces a large amount of heat, so that bimetal leaf is to dropout plate lateral bend, the dropout plate swings in housing under the effect of bimetal leaf upper push-rod and so that screw-home movement, thereby screw-home movement drives the disjunction that dynamic and static contact is separately realized circuit breaker.The beneficial effects of the utility model are, change original ferromagnetic formula disjunction structure into double-metal sheet type disjunction structure, reduced greatly space in the housing, and double-metal sheet type are relatively simple for structure, assembles more conveniently, and the while production cost is lower.Copper conductor is simple in structure, easy to process with the mode of terminals, bimetal leaf welding respectively, connects reliable.Threaded rod is fixed on the bimetal leaf by nut, and such structure can reach by the distance of regulating threaded rod and dropout plate the effect of regulating circuit breaker sensitivity, makes circuit breaker that the larger scope of application be arranged.
Every technical staff's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this utility model; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (3)
1. breaker of plastic casing, comprise housing (1), moving contact (2), snap close (3) and terminals (4), it is characterized in that: a side of described housing (1) inner lock buckle (3) is provided with dropout plate (5) and bimetal leaf (6) successively, dropout plate (5) relatively housing (1) swings between snap close (3) and bimetal leaf (6), the two ends of described bimetal leaf (6) link to each other with moving contact (2) and terminals (4) respectively by copper conductor (7), and described bimetal leaf (6) is provided with the push rod (8) corresponding with the plate of threading off (5).
2. breaker of plastic casing according to claim 1 is characterized in that described copper conductor (7) and bimetal leaf (6) weld mutually.
3. breaker of plastic casing according to claim 1 and 2 is characterized in that described push rod (8) is threaded rod, and described threaded rod is fixed on the bimetal leaf (6) by nut (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404806 CN202712091U (en) | 2012-08-15 | 2012-08-15 | Plastic housing breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404806 CN202712091U (en) | 2012-08-15 | 2012-08-15 | Plastic housing breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712091U true CN202712091U (en) | 2013-01-30 |
Family
ID=47592368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404806 Expired - Fee Related CN202712091U (en) | 2012-08-15 | 2012-08-15 | Plastic housing breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712091U (en) |
-
2012
- 2012-08-15 CN CN 201220404806 patent/CN202712091U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205911269U (en) | Breaker | |
| CN101980351B (en) | Rocker-type single-wire double-connection double-insurance switch | |
| CN204516633U (en) | 1P+N integral type residual current circuit breaker | |
| CN204088231U (en) | Move the circuit breaker of dropout a kind of novel wink | |
| CN202712091U (en) | Plastic housing breaker | |
| CN204632700U (en) | The tripping system of residual current circuit breaker | |
| CN203931974U (en) | The magnetictrip of circuit breaker | |
| CN202749316U (en) | Over-current tripping breaker for control and protective switching device | |
| CN202616161U (en) | Electromagnetic trip for small-sized circuit breaker | |
| CN207489781U (en) | A kind of breaker with built-in type conductive plate | |
| CN202259110U (en) | Prepayment small-sized circuit breaker | |
| CN204596735U (en) | Breaker of plastic casing and tripping mechanism thereof | |
| CN206312841U (en) | A kind of band phase-defect protection circuit breaker | |
| CN203165795U (en) | Novel outdoor high voltage vacuum circuit breaker | |
| CN203481149U (en) | Relay | |
| CN201904289U (en) | Short-circuit protection mechanism for miniature circuit breaker with high breaking capacity | |
| CN201845725U (en) | Seesaw-type single-wire duplex double-insurance switch | |
| CN211016975U (en) | Residual current operated circuit breaker | |
| CN202058674U (en) | Trip gear for plastic casing breaker | |
| CN206558457U (en) | A kind of current coil for oil damping hydraulic-electromagnetic tripping mechanism | |
| CN200979863Y (en) | A leakage protection switch | |
| CN202601534U (en) | Thermomagnetic system with plastic shell type circuit breaker | |
| CN205092204U (en) | Small -size electromagnetism release of low pressure | |
| CN202423178U (en) | Double-spring handle return mechanism applied to miniature circuit breaker | |
| CN202058672U (en) | Control device of circuit breaker of bistable permanent-magnetism mechanism |
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: 20130130 Termination date: 20130815 |