CN102237228B - Over-voltage/under-voltage protection device of miniature circuit breaker - Google Patents
Over-voltage/under-voltage protection device of miniature circuit breaker Download PDFInfo
- Publication number
- CN102237228B CN102237228B CN 201110162593 CN201110162593A CN102237228B CN 102237228 B CN102237228 B CN 102237228B CN 201110162593 CN201110162593 CN 201110162593 CN 201110162593 A CN201110162593 A CN 201110162593A CN 102237228 B CN102237228 B CN 102237228B
- Authority
- CN
- China
- Prior art keywords
- lever
- overvoltage
- undervoltage
- circuit breaker
- miniature circuit
- 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.)
- Active
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The invention discloses an over-voltage/under-voltage protection device of a miniature circuit breaker. The device mainly solves the problem that a lever of the conventional over-voltage/under-voltage protection device is too easy to overturn to correspond to an iron core. The device is characterized in that: a positioning block (7) is arranged in an opening groove (6) on a button (4); the positioning block (7) is positioned on a movement locus of the upper end of the lever (3); and the positioning block (7) can determine the corner position of the lever (3) and guarantee that the side of the lower end of the lever (3) is positioned on the movement locus of the iron core (5). The over-voltage/under-voltage protection device of the miniature circuit breaker simultaneously solves the problem that the lever is difficult to stir during check of assembly flexibility of the lever and has the characteristics of simple structure, safety, reliability and convenience for check.
Description
Technical field
The present invention relates to a kind of miniature circuit breaker, be specifically related to a kind of overvoltage/undervoltage protective device of miniature circuit breaker.
Background technology
Miniature circuit breaker refers to exchange the low-voltage circuit breaker that uses on 50/60Hz rated voltage 230/400V, the following circuit of rated current 63A, is usually used in places such as industry, commerce, high level and residential houses.According to the general miniature circuit breaker of user's needs the overvoltage/undervoltage defencive function is arranged; there is a kind of housing side of miniature circuit breaker to be connected with the overvoltage/undervoltage protector housing; overvoltage/undervoltage dropout driver is installed in the overvoltage/undervoltage protector housing; the overvoltage/undervoltage snap close; overvoltage/undervoltage tripping and the link gear that is connected with the miniature circuit breaker handle; the overvoltage/undervoltage tripping links to each other with an end of connecting axle; the housing that the other end of connecting axle passes miniature circuit breaker links to each other with the snap close of miniature circuit breaker; zero-sequence transformer produces induced current during overvoltage/undervoltage; after amplifying, the function element on the circuit board orders about the action of overvoltage/undervoltage dropout driver; iron core in the overvoltage/undervoltage dropout driver promotes the overvoltage/undervoltage snap close and the overvoltage/undervoltage tripping breaks away from; the overvoltage/undervoltage tripping is moved and is broken away from by the snap close of connecting axle drive miniature circuit breaker and the tripping of miniature circuit breaker, makes miniature circuit breaker realize the overvoltage/undervoltage dropout.Driving described link gear by handle when miniature circuit breaker is closed resets overvoltage/undervoltage snap close and overvoltage/undervoltage tripping.
The miniature circuit breaker of said structure adopts a kind of follow-on overvoltage/undervoltage protective device at present, this overvoltage/undervoltage protective device is mainly by the overvoltage/undervoltage protector housing, overvoltage/undervoltage dropout driver, lever and button are formed, lever is hinged in the overvoltage/undervoltage protector housing, be provided with iron core in the overvoltage/undervoltage dropout driver, be provided with the spring that button is upspring in the button, the end of button is exposed at outside the overvoltage/undervoltage protector housing, one end of lever is corresponding with iron core, the other end of lever can be stuck in the open slot of button, during overvoltage/undervoltage, overvoltage/undervoltage dropout driver orders about iron core and stretches out, iron core promotes lever rotates lever, lever and button break away from the snap close and the tripping that promote simultaneously in the connecting axle drive miniature circuit breaker housing and throw off, realize that the miniature circuit breaker overvoltage/undervoltage threads off, this moment the button locking lever, lever makes connecting axle not have free movable space, snap close and tripping in the miniature circuit breaker can not lock, and the miniature circuit breaker handle can not be closed; When resetting, press the button, lever blocks mutually with button under the effect of torsion spring, and connecting axle has free movable space, reset under the effect that latches in back-moving spring own in the miniature circuit breaker and with the tripping locking, the miniature circuit breaker handle can be closed.There is following defective in the overvoltage/undervoltage protective device of this structure: 1, owing to do not have spacing in the open slot on the button; there is the gap between lever and the jointed shaft again; press the button when resetting; lever has certain impulse force under the work of reduction torsion spring; lever be easy to overturn the position; cause the corresponding end of lever and iron core to rotate excessive and can not be corresponding with core ends; be that a lever end corresponding with iron core departs from the iron core movement locus; the iron core action promotes less than lever during overvoltage/undervoltage; can not realize the overvoltage/undervoltage protection, be prone to accident.2, in when assembling, whether flexible in order to check lever action, generally be to establish a bar-shaped trough at the overvoltage/undervoltage protector housing, stretch into instrument such as screwdriver and stir lever, lever and button are broken away from, and then press the button, the flexibility that the check lever assembles.Owing to the end that lever is corresponding with iron core is narrower, far away apart from the overvoltage/undervoltage protector housing, when detecting, stir the lever effort.
Summary of the invention
In order to overcome disadvantages of background technology; the invention provides a kind of overvoltage/undervoltage protective device of miniature circuit breaker; the overvoltage/undervoltage protective device of this miniature circuit breaker has mainly solved existing overturn the easily position and can not the problem corresponding with iron core of overvoltage/undervoltage protective device lever that has; stir the problem of lever effort when also having solved simultaneously the flexibility of check lever assembling, have simple in structure, safe and reliable and check characteristics easily.
Technical scheme of the present invention is: the overvoltage/undervoltage protective device of this miniature circuit breaker comprises the overvoltage/undervoltage protector housing; overvoltage/undervoltage dropout driver; lever and button; be provided with iron core in the overvoltage/undervoltage dropout driver; button is provided with open slot; the lower end of lever is corresponding with iron core; the upper end of lever is dihedral; the upper end of lever is corresponding with open slot and can snap in the described open slot; be provided with locating piece in the open slot on the button; described locating piece is positioned on the movement locus of lever upper end, and described locating piece can limit the angle position of lever and guarantee that the lower end side of lever is on the movement locus of iron core.
Described overvoltage/undervoltage protector housing is provided with the bar-shaped trough corresponding with the lever lower end, and the lower end of lever is provided with baffle plate, and the edge of described baffle plate is near the overvoltage/undervoltage protector housing.
Described baffle plate is that the lever side of iron core correspondence forms to the extension of overvoltage/undervoltage protector housing.
The present invention has following beneficial effect: owing to take such scheme, during restoring lever, press the button, the upper end of lever lever under the effect of torsion spring enters in the open slot on the button, the upper end of lever withstands on the locating piece, locating piece defines the corner of lever, lever can not overturn the position, the lower end side of lever all the time can be corresponding with iron core, when electric leakage, iron core stretches out and can promote the lever rotation, and is simple in structure, safe and reliable.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is structural representations of button 4 among Fig. 1.
Accompanying drawing 3 is structural representations of lever 3 among Fig. 1.
Accompanying drawing 4 is rearviews of the present invention.
1-overvoltage/undervoltage protector housing among the figure, 2-overvoltage/undervoltage dropout driver, 3-lever, 4-button, 5-iron core, 6-open slot, 7-locating piece, 8-bar-shaped trough, 9-baffle plate, 10-torsion spring.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
By Fig. 1 in conjunction with Fig. 2-shown in Figure 4; the overvoltage/undervoltage protective device of this miniature circuit breaker comprises overvoltage/undervoltage protector housing 1; overvoltage/undervoltage dropout driver 2; lever 3 and button 4; be provided with iron core 5 in the overvoltage/undervoltage dropout driver 2; button 4 is provided with open slot 6; the lower end of lever 3 is corresponding with iron core 5; the upper end of lever 3 is dihedral; the upper end of lever 3 and open slot 6 are corresponding and can snap in the described open slot 6; be provided with locating piece 7 in the open slot 6 on the button 4; described locating piece 7 is positioned on the movement locus of lever 3 upper ends, and described locating piece 7 can limit the angle position of lever 3 and guarantee that the lower end side of lever 3 is on the movement locus of iron core 5.During restoring lever 3, press the button 4, the upper end of lever 3 lever 3 under the effect of torsion spring 10 enters in the open slot 6 on the button 4, the upper end of lever 3 withstands on the locating piece 7, locating piece 7 defines the corner of lever 3, lever 3 can not overturn the position, the lower end side of lever 3 all the time can be corresponding with iron core 5, when electric leakage, iron core 5 stretches out and can promote lever 3 rotations, and is simple in structure, safe and reliable.
Described overvoltage/undervoltage protector housing 1 is provided with the bar-shaped trough 8 corresponding with lever 3 lower ends, and the lower end of lever 3 is provided with baffle plate 9, and the edge of described baffle plate 9 is near overvoltage/undervoltage protector housing 1.When checking the flexibility of lever 3 when assembling, stretch into bar-shaped trough 8 with instrument and just can stir baffle plate 9, check is convenient.
Described baffle plate 9 extends to overvoltage/undervoltage protector housing 1 for lever 3 sides of iron core 5 correspondences and forms.This structure is convenient to process lever 3, is beneficial to the die sinking cast.
Claims (3)
1. the overvoltage/undervoltage protective device of a miniature circuit breaker; comprise overvoltage/undervoltage protector housing (1); overvoltage/undervoltage dropout driver (2); lever (3) and button (4); be provided with iron core (5) in the overvoltage/undervoltage dropout driver (2); button (4) is provided with open slot (6); the lower end of lever (3) is corresponding with iron core (5); the upper end of lever (3) is dihedral; the upper end of lever (3) is corresponding with open slot (6) and can snap in the described open slot (6); it is characterized in that: be provided with locating piece (7) in the open slot (6) on the button (4); described locating piece (7) is positioned on the movement locus of lever (3) upper end, and described locating piece (7) can limit the angle position of lever (3) and guarantee that the lower end side of lever (3) is on the movement locus of iron core (5).
2. the overvoltage/undervoltage protective device of miniature circuit breaker according to claim 1; it is characterized in that: overvoltage/undervoltage protector housing (1) is provided with the bar-shaped trough (8) corresponding with lever (3) lower end; the lower end of lever (3) is provided with baffle plate (9); the edge of described baffle plate (9) is near overvoltage/undervoltage protector housing (1); when when assembling, checking the flexibility of lever (3), stretch into bar-shaped trough (8) with instrument and just can stir baffle plate (9).
3. the overvoltage/undervoltage protective device of miniature circuit breaker according to claim 2 is characterized in that: described baffle plate (9) extends to overvoltage/undervoltage protector housing (1) for corresponding lever (3) side of iron core (5) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110162593 CN102237228B (en) | 2011-06-16 | 2011-06-16 | Over-voltage/under-voltage protection device of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110162593 CN102237228B (en) | 2011-06-16 | 2011-06-16 | Over-voltage/under-voltage protection device of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102237228A CN102237228A (en) | 2011-11-09 |
| CN102237228B true CN102237228B (en) | 2013-08-14 |
Family
ID=44887772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110162593 Active CN102237228B (en) | 2011-06-16 | 2011-06-16 | Over-voltage/under-voltage protection device of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102237228B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102637559B (en) * | 2012-04-01 | 2014-12-17 | 浙江天正电气股份有限公司 | Overvoltage and undervoltage tripper of small-sized breaker |
| CN104952671B (en) * | 2015-06-12 | 2017-09-12 | 浙江天正电气股份有限公司 | A kind of direct pull formula residual current acting tripping mechanism |
| CN110676131B (en) * | 2019-10-24 | 2024-07-30 | 浙江天正电气股份有限公司 | Tripping output force value amplifying mechanism and circuit breaker with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054220U (en) * | 1989-08-12 | 1990-03-07 | 殷顺民 | Checker for preventing electrical equipment from faulty operation |
| CN2598124Y (en) * | 2003-01-15 | 2004-01-07 | 正泰集团公司 | Operating mechanism for electric leak apparatus release |
| US6800822B2 (en) * | 2002-05-27 | 2004-10-05 | Fuji Electric Co., Ltd. | Circuit breaker |
| CN201741645U (en) * | 2010-05-13 | 2011-02-09 | 上海电器股份有限公司人民电器厂 | Hand-operated and automatic combined residual current tripping device |
| CN202076202U (en) * | 2011-06-16 | 2011-12-14 | 浙江天正电气股份有限公司 | Over/under-voltage protective device of miniature breaker |
-
2011
- 2011-06-16 CN CN 201110162593 patent/CN102237228B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2054220U (en) * | 1989-08-12 | 1990-03-07 | 殷顺民 | Checker for preventing electrical equipment from faulty operation |
| US6800822B2 (en) * | 2002-05-27 | 2004-10-05 | Fuji Electric Co., Ltd. | Circuit breaker |
| CN2598124Y (en) * | 2003-01-15 | 2004-01-07 | 正泰集团公司 | Operating mechanism for electric leak apparatus release |
| CN201741645U (en) * | 2010-05-13 | 2011-02-09 | 上海电器股份有限公司人民电器厂 | Hand-operated and automatic combined residual current tripping device |
| CN202076202U (en) * | 2011-06-16 | 2011-12-14 | 浙江天正电气股份有限公司 | Over/under-voltage protective device of miniature breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102237228A (en) | 2011-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102136401B (en) | Miniature circuit breaker with leakage protection function | |
| CN104576235A (en) | Automatic reclosing lock device of miniature circuit breaker | |
| CN104183430B (en) | A kind of residual current circuit breaker | |
| CN102237228B (en) | Over-voltage/under-voltage protection device of miniature circuit breaker | |
| CN202018931U (en) | Miniature circuit breaker with under-voltage and over-voltage protection | |
| CN201975350U (en) | Small-sized circuit breaker with function of undervoltage and overvoltage protection | |
| CN215496596U (en) | Power supply cut-off mechanism for automatic air circuit breaker | |
| CN202076202U (en) | Over/under-voltage protective device of miniature breaker | |
| CN206460920U (en) | A kind of accident indicator of miniature circuit breaker | |
| CN204614743U (en) | There is the tripping assembly of stopping means | |
| CN204303718U (en) | Switch isolation ground connection linkage | |
| CN208460693U (en) | A kind of compact electromagnetic dropout type leakage circuit breakers | |
| CN201946535U (en) | Small-sized circuit breaker with electric leakage protection function | |
| CN203406201U (en) | Emergency tripping gear used for switch cabinet | |
| CN207558723U (en) | Small type circuit breaker operating mechanism | |
| CN200947507Y (en) | Creepage protecting socket | |
| CN205595778U (en) | Intelligent integrated protector | |
| CN206610782U (en) | Self-recovering type overvoltage-undervoltage protector | |
| CN212322935U (en) | Take manual separating brake mechanism feed combination switch | |
| CN202772071U (en) | Energy-storage handle for circuit breaker | |
| CN201956297U (en) | Over/under-voltage tripper mountable on two sides | |
| CN206602091U (en) | Feeler lever mechanism and circuit breaker | |
| CN205406445U (en) | Thermomagnetic trip gear of circuit breaker | |
| CN206003707U (en) | Residual current operated protective circuit breaker | |
| CN221596350U (en) | Leakage protection module of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |