CN201204165Y - Plastic case circuit breaker - Google Patents
Plastic case circuit breaker Download PDFInfo
- Publication number
- CN201204165Y CN201204165Y CNU2008200379484U CN200820037948U CN201204165Y CN 201204165 Y CN201204165 Y CN 201204165Y CN U2008200379484 U CNU2008200379484 U CN U2008200379484U CN 200820037948 U CN200820037948 U CN 200820037948U CN 201204165 Y CN201204165 Y CN 201204165Y
- Authority
- CN
- China
- Prior art keywords
- push rod
- circuit breaker
- breaker
- main
- boss
- 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 moulded case circuit breaker comprises a base; a main cover, fixed on top of the base, wherein a cavity for housing inner accessories is formed on an upper surface of the main cover; an accessory cover mounted on top of the main cover for covering the cavity; an operating mechanism, mounted inside the case composed of a base and a main cover, characterized by also comprising an interlocking device causing the circuit breaker to automatically trip out when the accessory cover is opened, wherein the interlocking device includes a push rod rotatably mounted on the main cover, one end of which is formed with a first touch arm matching with the accessory cover and the other end is formed with a second touch arm matching with a jump buckle of the operating mechanism, and an elastic piece; one end of the elastic piece is connected with the main cover, and the other end is connected with the push rod. The utility model has the advantages that, no matter what state the circuit breaker is in, using security is ensured; structure is simple, mounting is convenient, and limited space inside the circuit breaker is fully made used of.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing, and particularly a kind of breaker of plastic casing that contents is installed belongs to the low voltage electrical apparatus technology field.
Background technology
Breaker of plastic casing is applicable in the low voltage power distribution network, be used to distribute electric energy, have overload, short-circuit protection function, in addition, in order to satisfy user's various different requirements, also prepared can after the various contents that add, the contents that adds after these comprises: auxiliary switch, the alarm switch of the closing of circuit breaker, branch, tripped condition outwards being done contact output; Make the shunt trip of circuit breaker trip according to the remote control command of outside; When being reduced to setting, main circuit voltage makes under voltage shearing device of circuit breaker trip or the like when following forcibly.
For the contents that can after safely these being installed on the breaker of plastic casing, add, common way is: be installed with Yi Zhugai above the pedestal of described breaker of plastic casing, the upper surface of this master's lid is formed with the cavity volume that is used for ccontaining above-mentioned contents, and an attachment head that is used to seal described cavity volume is installed above main lid.The problem that the breaker of plastic casing of this structure exists in actual use is: when the user installs or when changing contents at the lid that opens the attachment, because the circuit breaker of this moment still can close normally, separating brake, button operation again, thereby have potential safety hazard.Electric shock accidents may take place, and jeopardizes personal safety.
Summary of the invention
Task of the present utility model is will provide a kind of can guarantee breaker of plastic casing safe in utilization and simple in structure, easy for installation.
Task of the present utility model is finished like this: a kind of breaker of plastic casing comprises: a pedestal; One main the lid is fixedly arranged in the top of pedestal, is formed with the cavity volume that is used for ccontaining contents at the main upper surface that covers; One attachment head is installed in the main top of covering, and is used for the described cavity volume of cap seal; One operating mechanism, be installed in the enclosure interior that is constituted by pedestal and main lid, be characterized in: comprise that also one is used for making the interlock of circuit breaker automatic trip when attachment head is opened, this interlock comprises push rod and elastic component, described push rod is installed in rotation on main covering, and the one end is formed with first contact arm, the other end that are used for matching with attachment head and is formed with and is used for second contact arm that matches with the operating mechanism tripping; One end of described elastic component is connected with main lid, and the other end is connected with push rod.
Master described in the utility model covers and is provided with the sidewall that is used to separate cavity volume.
Sidewall described in the utility model is provided with first boss, offers draw-in groove at the nearly medium position place of described push rod, by draw-in groove with first the cooperating of boss with push rod hub setting rotationally on sidewall.
Sidewall described in the utility model is provided with second boss, and an end of elastic component is connected with second boss, and the other end is connected with second contact arm of push rod.
After the utility model has adopted said structure, the beneficial effect that has: at first, owing in the cavity volume of main lid, have additional interlock, when the user when installing or change contents, the lid as long as open the attachment, circuit breaker is with regard to automatic trip, and therefore no matter which kind of state circuit breaker is in, and all can guarantee safe in utilization; Secondly, simple in structure, easy for installation, and made full use of the inner limited space of circuit breaker.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that interlock described in the utility model is installed on the perspective view on the main sidewall that covers.
Fig. 3 is the planar structure schematic diagram that interlock of the present utility model cooperates with the tripping of attachment head and operating mechanism.
Among the figure: 1. pedestal; 2. lead lid, 21. cavity volumes, 22. sidewalls, 221. first boss, 222. second boss; 3. attachment head; 4. operating mechanism, 41. trippings; 5. push rod, 51. first contact arms, 52. second contact arms, 53. draw-in grooves; 6. elastic component.
Embodiment
By the description of applicant, will help to understand the utility model more, and good effect of the present utility model is embodied more, but embodiment should not be considered as the restriction to some extent to the utility model scheme embodiment.
See also Fig. 1 and in conjunction with Fig. 2, the utility model breaker of plastic casing mainly comprises pedestal 1, be fixedly arranged in the main of pedestal 1 top covers 2, be formed with the cavity volume 21 and that is used for ccontaining contents and be installed in the main attachment head 3 and that is used for the described cavity volume 21 of cap seal of cover 1 top and be installed at main 2 the upper surface of cover by pedestal 1 and the main operating mechanism 4 that covers 2 enclosure interior that constitute, preferably, described master is covered 2 and is provided with the sidewall 22 that is used to separate cavity volume 21, interlock is arranged on the sidewall 22, and its position is corresponding with tripping 41 positions of operating mechanism 4.This interlock comprises push rod 5 and elastic component 6, one end of push rod 5 has first contact arm 51, the other end has second contact arm 52, constitute certain knuckle between first contact arm 51 and second contact arm 52, nearly medium position place at push rod 5 offers draw-in groove 53, correspondingly, sidewall 22 is provided with first boss 221, by draw-in groove 53 with cooperating of first boss 221 with push rod 5 hub setting rotationally on sidewall 22, specifically: with the draw-in groove 51 of push rod 5 by certain angle and after 221 compatible joining of first boss, push rod 5 since the weight of self can't come off after rotating to another angle; Elastic component 6 general preferred employing extension springs, when mounted, an end of elastic component 6 is connected with second boss 222 on being located at sidewall 22, the other end is connected with second contact arm 52 of push rod 5 and gets final product.
See also the operation principle that Fig. 3 narrates interlock: when attachment head 3 is in closure state, compress first contact arm 51 of push rod 5 one ends by attachment head 3, and second contact arm 52 of push rod 5 other ends is subjected to elastic component 6 tension, make push rod 5 be in poised state, at this moment, circuit breaker can close normally, separating brake, button operation again; And when covering 3 when opening the attachment, the pressure that acts on first contact arm 51 of push rod 5 is eliminated, and push rod 5 fulcrum around self under the tension of elastic component 6 is rotated counterclockwise, and the tripping 41 that drives operating mechanism 4 is moved, by the release of operating mechanism semi-finals system, circuit breaker automatic trip.
Claims (4)
1, a kind of breaker of plastic casing comprises: a pedestal (1); One master is covered (2), is fixedly arranged in the top of pedestal (1), is formed with the cavity volume (21) that is used for ccontaining contents at the main upper surface that covers (2); One attachment head (3) is installed in the main top of covering (2), is used for the described cavity volume of cap seal (21); One operating mechanism (4), be installed in the enclosure interior that is constituted by pedestal (1) and main lid (2), it is characterized in that also comprising that one is used for making when opening in attachment head (3) interlock of circuit breaker automatic trip, this interlock comprises push rod (5) and elastic component (6), described push rod (5) is installed in rotation on the main lid (2), and the one end is formed with first contact arm (51), the other end that are used for matching with attachment head (3) and is formed with and is used for second contact arm (52) that matches with operating mechanism (4) tripping (41); One end of described elastic component (6) is connected with main lid (2), and the other end is connected with push rod (5).
2, breaker of plastic casing according to claim 1 is characterized in that described main lid (2) is provided with the sidewall (22) that is used to separate cavity volume (21).
3, breaker of plastic casing according to claim 2, it is characterized in that on described sidewall (22), being provided with first boss (221), nearly medium position place at described push rod (5) offers draw-in groove (53), by draw-in groove (53) with cooperating of first boss (221) with push rod (5) hub setting rotationally on sidewall (22).
4, breaker of plastic casing according to claim 2 is characterized in that being provided with second boss (222) on described sidewall (22), an end of elastic component (6) is connected with second boss (222), and the other end is connected with second contact arm (52) of push rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200379484U CN201204165Y (en) | 2008-06-06 | 2008-06-06 | Plastic case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200379484U CN201204165Y (en) | 2008-06-06 | 2008-06-06 | Plastic case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204165Y true CN201204165Y (en) | 2009-03-04 |
Family
ID=40426480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200379484U Expired - Lifetime CN201204165Y (en) | 2008-06-06 | 2008-06-06 | Plastic case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204165Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847552A (en) * | 2009-03-27 | 2010-09-29 | 上海良信电器股份有限公司 | Small circuit breaker for plug-in installation |
| CN102184810A (en) * | 2011-05-12 | 2011-09-14 | 台安科技(无锡)有限公司 | Guide rod structure for connection pre-outage of withdrawing device of circuit breaker |
| CN102522279A (en) * | 2011-12-02 | 2012-06-27 | 上海电器科学研究院 | Uncap releasing protecting device of direct current belt fuse breaker |
| CN103077859A (en) * | 2013-01-06 | 2013-05-01 | 华通机电股份有限公司 | Circuit breaker automatically tripped during replacement of various modules |
| CN101866790B (en) * | 2009-04-14 | 2013-12-11 | 上海良信电器股份有限公司 | Hydraulic electromagnetic circuit breaker with high safety |
| CN101853750B (en) * | 2009-03-31 | 2014-01-01 | 上海良信电器股份有限公司 | Miniature circuit breaker for side face plug-in installation |
-
2008
- 2008-06-06 CN CNU2008200379484U patent/CN201204165Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847552A (en) * | 2009-03-27 | 2010-09-29 | 上海良信电器股份有限公司 | Small circuit breaker for plug-in installation |
| CN101847552B (en) * | 2009-03-27 | 2013-09-18 | 上海良信电器股份有限公司 | Small circuit breaker for plug-in installation |
| CN101853750B (en) * | 2009-03-31 | 2014-01-01 | 上海良信电器股份有限公司 | Miniature circuit breaker for side face plug-in installation |
| CN101866790B (en) * | 2009-04-14 | 2013-12-11 | 上海良信电器股份有限公司 | Hydraulic electromagnetic circuit breaker with high safety |
| CN102184810A (en) * | 2011-05-12 | 2011-09-14 | 台安科技(无锡)有限公司 | Guide rod structure for connection pre-outage of withdrawing device of circuit breaker |
| CN102522279A (en) * | 2011-12-02 | 2012-06-27 | 上海电器科学研究院 | Uncap releasing protecting device of direct current belt fuse breaker |
| CN103077859A (en) * | 2013-01-06 | 2013-05-01 | 华通机电股份有限公司 | Circuit breaker automatically tripped during replacement of various modules |
| CN103077859B (en) * | 2013-01-06 | 2014-12-03 | 华通机电股份有限公司 | Circuit breaker automatically tripped during replacement of various modules |
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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 |
Granted publication date: 20090304 |
|
| CX01 | Expiry of patent term |