CN202712090U - Locking rack of mini breaker - Google Patents
Locking rack of mini breaker Download PDFInfo
- Publication number
- CN202712090U CN202712090U CN201220418346.XU CN201220418346U CN202712090U CN 202712090 U CN202712090 U CN 202712090U CN 201220418346 U CN201220418346 U CN 201220418346U CN 202712090 U CN202712090 U CN 202712090U
- Authority
- CN
- China
- Prior art keywords
- snap close
- circuit breaker
- close frame
- miniature circuit
- projection
- 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
The utility model relates to a locking rack of a mini breaker. The locking rack comprises a locking rack body; a hinge part, a locking part and a motion part are arranged on the locking rack body, wherein the locking part cooperates with an operating mechanism of the breaker, and the motion part cooperates with a releasing mechanism of the breaker; and a fixing mechanism for fixing an armature are arranged on the motion part. The locking rack of the mini breaker is simple in structure and lower in the cost, and greatly improves breaking capability and rated current.
Description
Technical field
The utility model relates to field of circuit breakers, is specifically related to a kind of snap close frame of miniature circuit breaker.
Background technology
Miniature circuit breaker, generally include housing, be provided with operating mechanism, snap close frame, tripping mechanism, moving contact, fixed contact, arc control device and bimetal leaf in the housing, both sides in the housing also are respectively arranged with binding post, bimetal leaf one end is connected with the binding post conducting of a side in the housing, the bimetal leaf other end is connected with the moving contact conducting by brush wire, and the snap close frame is hinged to be arranged in the housing, and the snap close frame comprises the latch part that matches with operating mechanism and the operating member that matches with tripping mechanism.Traditional miniature circuit breaker, its tripping mechanism adopts magnetictrip usually, and the coil of magnetictrip is connected with the bimetal leaf conduction, and circuit breaker is when normal condition, the snap close frame keeps operating mechanism under the effect of back-moving spring, so that moving contact and fixed contact are conducted; When short circuit current passes through the coil of bimetal leaf and magnetictrip, the magnetic field force that coil produces overcomes the reaction spring adhesive armature and hits draw bar, draw bar drive snap close frame overcomes action of reset spring power and rotates, thereby so that operating mechanism and the tripping of snap close frame phase, final so that moving contact and fixed contact are separated and cut off circuit.Traditional miniature circuit breaker, tripping mechanism adopts magnetictrip, and magnetictrip is arranged on the top of arc control device usually, because magnetictrip has larger volume, and miniature circuit breaker is subject to the overall volume restriction, thereby can only reduce the volume of arc control device, thereby has limited its rated current, traditional outer casing width is the miniature circuit breaker of 18mm, and its rated current only has 63A.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model be to provide a kind of simple in structure, cost is lower and greatly improve the snap close frame of the miniature circuit breaker of rated current.
For achieving the above object, the utility model provides following technical scheme: a kind of snap close frame of miniature circuit breaker, comprise snap close frame body, the operating member that is provided with articulated section, the latch part that matches with the operating mechanism of circuit breaker on the described snap close frame body and matches with the tripping mechanism of circuit breaker is provided with the fixed mechanism for fixed armature on the described operating member.
By adopting technique scheme, but the snap close frame is fixed armature just, then the bimetal leaf in miniature circuit breaker arranges yoke and cooperates with armature, just can cancel the magnetictrip of traditional miniature circuit breaker, so that the miniature circuit breaker structure is simpler, and reduced production cost, and effectively reduced internal volume, just can increase the volume of arc control device, thereby breaking capacity and rated current have been improved, the miniature circuit breaker of technical solution of the present invention, outer casing width is that the miniature circuit breaker rated current of 9mm can be brought up to 32A, outer casing width is that the miniature circuit breaker rated current of 12mm can be brought up to 63A, and outer casing width is that the miniature circuit breaker rated current of 18mm can be brought up to 125A, and outer casing width is that the miniature circuit breaker rated current of 27mm can be brought up to 250A.
The utility model further arranges: described fixed mechanism comprises the projection that protrudes to described operating member one side, and described projection top is provided with positive stop lug boss.
By adopting technique scheme, just armature can be set on the projection, and by firm being arranged on the snap close frame of positive stop lug boss.
The utility model further arranges: the cylindrical setting of described projection, described positive stop lug boss external diameter are greater than the external diameter of described projection, and the periphery at described positive stop lug boss top is provided with arc surface.
By adopting technique scheme, convenience and steadiness that armature is installed have been improved.
The utility model further arranges: described latch part is provided with the snap close groove, and described snap close groove is arranged on the opposite side of the relative fixed mechanism of snap close frame body.
By adopting technique scheme, so that the armature of miniature circuit breaker can better cooperate with yoke.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the utility model example structure figure one;
Fig. 2 is the utility model example structure figure two;
Fig. 3 is the A section enlarged drawing of Fig. 2;
Fig. 4 is another example structure of the utility model figure.
Embodiment
Referring to accompanying drawing 1 to accompanying drawing 3, the snap close frame of the disclosed miniature circuit breaker of the utility model, comprise snap close frame body 1, the operating member 13 that is provided with articulated section 11, the latch part 12 that matches with the operating mechanism of circuit breaker on the described snap close frame body 1 and matches with the tripping mechanism of circuit breaker is provided with the fixed mechanism 14 for fixed armature on the described operating member 13.Technical solutions of the utility model, but the snap close frame is fixed armature just, then the bimetal leaf in miniature circuit breaker arranges yoke and cooperates with armature, just can cancel the magnetictrip of traditional miniature circuit breaker, so that the miniature circuit breaker structure is simpler, and reduced production cost, and effectively reduced internal volume, just can increase the volume of arc control device, thereby breaking capacity and rated current have been improved, the miniature circuit breaker of technical solution of the present invention, outer casing width is that the miniature circuit breaker rated current of 9mm can be brought up to 32A, outer casing width is that the miniature circuit breaker rated current of 12mm can be brought up to 63A, and outer casing width is that the miniature circuit breaker rated current of 18mm can be brought up to 125A, and outer casing width is that the miniature circuit breaker rated current of 27mm can be brought up to 250A.
Present embodiment is preferred, and described fixed mechanism 14 comprises the projection 141 that protrudes to described operating member 13 1 sides, and described projection 141 tops are provided with positive stop lug boss 142.So arrange, just armature can be set on the projection 141, and by positive stop lug boss 142 firm being arranged on the snap close frame.
Present embodiment is further preferred, described projection 141 cylindrical settings, and described positive stop lug boss 142 external diameters are greater than the external diameter of described projection 141, and the periphery at described positive stop lug boss 142 tops is provided with arc surface 143.So arrange, improved convenience and steadiness that armature is installed.
Present embodiment further arranges: described latch part 12 is provided with snap close groove 121, and described snap close groove 121 is arranged on the opposite side of snap close frame body 1 relative fixed mechanism 14.The armature of miniature circuit breaker so arranges, so that can better cooperate with yoke.Referring to accompanying drawing 4, technical solutions of the utility model can also snap close groove 121 be arranged on the same side of snap close frame body 1 corresponding fixed mechanism 14.
Claims (4)
1. the snap close frame of a miniature circuit breaker, comprise snap close frame body, the operating member that is provided with articulated section, the latch part that matches with the operating mechanism of circuit breaker on the described snap close frame body and matches with the tripping mechanism of circuit breaker is characterized in that: be provided with the fixed mechanism for fixed armature on the described operating member.
2. the snap close frame of miniature circuit breaker according to claim 1 is characterized in that: described fixed mechanism comprises the projection that protrudes to described operating member one side, and described projection top is provided with positive stop lug boss.
3. the snap close frame of miniature circuit breaker according to claim 2, it is characterized in that: the cylindrical setting of described projection, described positive stop lug boss external diameter are greater than the external diameter of described projection, and the periphery at described positive stop lug boss top is provided with arc surface.
4. according to claim 1 and 2 or the snap close frame of 3 described miniature circuit breakers, it is characterized in that: described latch part is provided with the snap close groove, and described snap close groove is arranged on the opposite side of the relative fixed mechanism of snap close frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220418346.XU CN202712090U (en) | 2012-08-22 | 2012-08-22 | Locking rack of mini breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220418346.XU CN202712090U (en) | 2012-08-22 | 2012-08-22 | Locking rack of mini breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712090U true CN202712090U (en) | 2013-01-30 |
Family
ID=47592367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220418346.XU Expired - Lifetime CN202712090U (en) | 2012-08-22 | 2012-08-22 | Locking rack of mini breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826139A (en) * | 2015-07-10 | 2016-08-03 | 温州市新蓝天电器有限公司 | Circuit breaker |
-
2012
- 2012-08-22 CN CN201220418346.XU patent/CN202712090U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826139A (en) * | 2015-07-10 | 2016-08-03 | 温州市新蓝天电器有限公司 | Circuit 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |