CN201616400U - Small-sized low-voltage circuit breaker - Google Patents
Small-sized low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201616400U CN201616400U CN2010200501375U CN201020050137U CN201616400U CN 201616400 U CN201616400 U CN 201616400U CN 2010200501375 U CN2010200501375 U CN 2010200501375U CN 201020050137 U CN201020050137 U CN 201020050137U CN 201616400 U CN201616400 U CN 201616400U
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- CN
- China
- Prior art keywords
- iron core
- circuit breaker
- snap close
- torsion spring
- moving contact
- 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
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Abstract
A small-sized low-voltage circuit breaker mainly solves the problems that present small-sized circuit breaker has centralized lock catch and tripping catch, so that the structure is complicated, the space utilization in a casing is unreasonable and the assembly is difficult. The small-sized low-voltage circuit breaker is characterized in that a rotational torsion spring (11) is arranged between one end of an iron core (10) and a lock catch (5); two ends of the torsion spring (11) are respectively hung at the end parts of the lock catch (5) and an iron core (6); and the other end of the iron core (10) corresponds to a movable contact rack (12). The small-sized low-voltage circuit breaker fully utilizes the space in the casing, reasonably arranges every component and has the characteristics of simple structure and convenient assembly.
Description
Technical field:
The utility model relates to a kind of low-voltage electrical apparatus, is specifically related to a kind of low-voltage miniature circuit breaker.
Background technology:
At present, the low-voltage miniature circuit breaker at the two poles of the earth is generally adopted, this low-voltage miniature circuit breaker is mainly by three housings that separate, transmission mechanism, overload protection arrangement, arc-control device, moving contact, fixed contact, binding post is formed, its inside by middle casing with two polar circuits separately, transmission mechanism wherein is mainly by snap close, tripping, support, moving contact frame, " U " type connecting rod and handle are formed, support, " U " type connecting rod and handle are formed four-bar mechanism, have chute on the support, one end of " U " type connecting rod places in the chute and can slide therein, tripping is a dihedral, an end of tripping blocks mutually with snap close during normal the use, and the other end blocks the chute on the support; In overheated, when overload,, tripping breaks away from snap close, the tripping rotation, and the chute on the support is opened, and " U " type connecting rod slides along chute can't block support, and support drives moving contact and moves the disengaging fixed contact under the effect of spring force.Because the moment that moving contact and fixed contact break away from can produce electric arc, for successfully being introduced, electric arc carries out arc extinguishing in the arc-control device, there is a kind of fixed contact of miniature circuit breaker to be arranged on the position of the middle part of housing near arc control device, the change of fixed contact position also changes the direction of rotation of moving contact thereupon, iron core action in the overload coil also changes thereupon, the snap close of existing this circuit breaker and tripping are concentrated and are arranged on support and the moving contact frame, iron core in the overload coil is corresponding with snap close, each parts concentrates in together, complex structure, space utilization in the housing is unreasonable, the assembling difficulty.
The utility model content:
Be provided with concentrated in order to overcome existing miniature circuit breaker snap close and tripping, space utilization in complex structure, the housing is unreasonable to making, the deficiency of assembling difficulty, the utility model provides a kind of low-voltage miniature circuit breaker, this low-voltage miniature circuit breaker has made full use of the space in the housing, each arrangements of components is reasonable, has characteristics simple in structure and that be convenient to assemble.
The technical solution of the utility model is: a kind of low-voltage miniature circuit breaker comprises moving contact, fixed contact, arc control device, housing, snap close, tripping, bimetal leaf and overload coil, fixed contact is positioned at the entrance side of arc control device and is fixed on the yoke, moving contact is corresponding with fixed contact, snap close and tripping are all hinged with housing, snap close can block mutually with tripping, be provided with iron core in the overload coil, moving contact is installed on the moving contact frame, being provided with between one end of iron core and the snap close can rotating torsion spring, and the two ends of torsion spring are hung in the end of snap close and iron core; The other end of iron core is corresponding with moving contact frame.
The end of corresponding snap close is provided with draw-in groove on the described iron core, and an end of torsion spring hangs in the draw-in groove.
Described housing is provided with a cylinder, and torsion spring set is outside described cylinder.
The utlity model has following beneficial effect: owing to take such scheme, iron core is connected with snap close, is arranged on the variation of moving contact motion mode on the yoke to adapt to fixed contact by torsion spring.When overload, electric current in the overload coil is bigger, the magnetic attraction iron core that overload coil produces is to the direction motion near moving contact frame, iron core drives torsion spring and rotates, thereby make torsion spring drive snap close and tripping disengaging, meanwhile, the other end of iron core promotes moving contact frame, makes moving contact frame drive moving contact and fixed contact disjunction.The utility model is compared with background technology, reasonably utilizes the space in the housing of knowing clearly, and is simple in structure, is convenient to assembling.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is rearviews of Fig. 1.
1-moving contact among the figure, 2-fixed contact, 3-arc control device, 4-housing, 5-snap close, 6-tripping, 7-bimetal leaf, 8-overload coil, 9-yoke, 10-iron core, 11-torsion spring, 12-draw-in groove, 13-cylinder, 14-moving contact frame.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By Fig. 1 in conjunction with shown in Figure 2, a kind of low-voltage miniature circuit breaker comprises moving contact 1, fixed contact 2, arc control device 3, housing 4, snap close 5, tripping 6, bimetal leaf 7 and overload coil 8, fixed contact 2 is positioned at the entrance side of arc control device 3 and is fixed on the yoke 9, moving contact 1 is corresponding with fixed contact 2, snap close 5 and tripping 6 are all hinged with housing 4, snap close 5 can block mutually with tripping 6, be provided with iron core 10 in the overload coil 8, moving contact 1 is installed on the moving contact frame 14, being provided with between one end of iron core 10 and the snap close 5 can rotating torsion spring 11, and the two ends of torsion spring 11 are hung in the end of snap close 5 and iron core 6; The other end of iron core 10 is corresponding with moving contact frame 14.By torsion spring 11 iron core 10 is connected with snap close 5, is arranged on the variation of moving contact 1 motion mode on the yoke 9 to adapt to fixed contact 2.When overload, electric current in the overload coil 8 is bigger, the magnetic attraction iron core 10 that overload coil 8 produces is to the direction motion near moving contact frame 14, iron core 10 drives torsion spring 11 and rotates, thereby making torsion spring 11 drive snap close 5 breaks away from tripping 6, meanwhile, the other end of iron core 10 promotes moving contact frame 14, makes moving contact frame 14 drive moving contact 1 and fixed contact 2 disjunctions.The utility model is compared with background technology, reasonably utilizes the space in the housing 4 of knowing clearly, and is simple in structure, is convenient to assembling.
In conjunction with shown in Figure 2, the end of corresponding snap close 5 is provided with draw-in groove 12 on the described iron core 10 by Fig. 1, and an end of torsion spring 11 hangs in the draw-in groove 12.Draw-in groove 12 is convenient to torsion spring 11 and is hung and it is blocked mutually with iron core 10, and snap close 5 is provided with the pin that blocks mutually with torsion spring 11.
In conjunction with shown in Figure 2, described housing 4 is provided with a cylinder 13 by Fig. 1, and torsion spring 11 is enclosed within outside the described cylinder 13.Cylinder 13 can make torsion spring 11 location, and torsion spring 11 can rotate around cylinder 13.
Claims (3)
1. low-voltage miniature circuit breaker, comprise moving contact (1), fixed contact (2), arc control device (3), housing (4), snap close (5), tripping (6), bimetal leaf (7) and overload coil (8), fixed contact (2) is positioned at the entrance side of arc control device (3) and is fixed on the yoke (9), moving contact (1) is corresponding with fixed contact (2), snap close (5) and tripping (6) are all hinged with housing (4), snap close (5) can block mutually with tripping (6), be provided with iron core (10) in the overload coil (8), moving contact (1) is installed on the moving contact frame (14), it is characterized in that: being provided with between an end of iron core (10) and the snap close (5) can rotating torsion spring (11), and the two ends of torsion spring (11) are hung in the end of snap close (5) and iron core (6); The other end of iron core (10) is corresponding with moving contact frame (14).
2. a kind of low-voltage miniature circuit breaker according to claim 1 is characterized in that: the end that iron core (10) is gone up corresponding snap close (5) is provided with draw-in groove (12), and an end of torsion spring (11) hangs in the draw-in groove (12).
3. a kind of low-voltage miniature circuit breaker according to claim 1 and 2 is characterized in that: housing (4) is provided with a cylinder (13), and torsion spring (11) is enclosed within outside the described cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200501375U CN201616400U (en) | 2010-01-12 | 2010-01-12 | Small-sized low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200501375U CN201616400U (en) | 2010-01-12 | 2010-01-12 | Small-sized low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616400U true CN201616400U (en) | 2010-10-27 |
Family
ID=43002764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200501375U Expired - Lifetime CN201616400U (en) | 2010-01-12 | 2010-01-12 | Small-sized low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543603A (en) * | 2012-01-20 | 2012-07-04 | 浙江鼎威科技有限公司 | Ultrathin minitype breaker |
-
2010
- 2010-01-12 CN CN2010200501375U patent/CN201616400U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543603A (en) * | 2012-01-20 | 2012-07-04 | 浙江鼎威科技有限公司 | Ultrathin minitype breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BOPU ELECTRICAL CO., LTD. Free format text: FORMER OWNER: WENZHOU BOPU ELECTRIC CO., LTD. Effective date: 20150217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325604 WENZHOU, ZHEJIANG PROVINCE TO: 317300 TAIZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150217 Address after: 317300 Yongan industrial agglomeration area, Xianju County, Zhejiang Province Patentee after: WENZHOU POPP ELECTRIC CO., LTD. Address before: Yueqing City, Zhejiang province 325604 Yuecheng Town Industrial Zone (GEEM in Gaizhu Electric Co., 3 floor) Patentee before: Wenzhou Popp Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101027 |
|
| CX01 | Expiry of patent term |