CN203503581U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN203503581U CN203503581U CN201320453438.6U CN201320453438U CN203503581U CN 203503581 U CN203503581 U CN 203503581U CN 201320453438 U CN201320453438 U CN 201320453438U CN 203503581 U CN203503581 U CN 203503581U
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- arc guide
- quenching plate
- lead
- 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 aims at providing a miniature circuit breaker to improve the arc guide part in the prior art, such that the arc guide can be quick and accurate, and the arc guide part is prevented from displacement and deformation even in the case of collision, being safe and reliable. To achieve the purpose of the utility model, the miniature circuit breaker comprises a housing, wherein an arc extinguishing channel connected with a magnet yoke is mounted inside the housing; the magnet yoke is connected with an arc guide angle which is composed of an upper arc guide piece and a lower arc guide piece; the upper arc guide piece is fixed in a mounting clamp plate inside the housing, and the lower arc guide piece is mounted on the top of the magnet yoke; and an arc shape with a groove is formed at the joint of the two arc guide pieces. By adopting the above technical scheme, the miniature circuit breaker provided by the utility model is simple in structure, efficient in energy saving and quick in heat radiation, and is capable of automatically tripping in the cases of over heat and over load, thereby ensuring the use safety of the whole system; moreover, the upper arc guide piece and the lower guide piece are fixedly connected, so that the circuit breaker is prevented from malfunctions while being collided.
Description
Technical field
The utility model relates to a kind of circuit breaker, relates in particular to a kind of circuit breaker for many circuit breaker interlocks.
Background technology
Circuit breaker is common Protector for electric appliances of the prior art.Be often referred to the electric current that can close, carry and cut-off under normal loop condition, and can close, carrying and cut-off the switching device that abnormal loop condition comprises the electric current under short circuit condition in official hour.Circuit breaker can be used to distribute electric energy; do not start continually asynchronous motor; power circuit and motor etc. are carried out to protection, can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.Wherein, an important indicator that has influence on circuit breaker effect be exactly he lead arc effect because this directly has influence on the breaking capability of circuit breaker.In prior art, also this technology is inquired into, as what leading of the utility model patent < < miniature circuit breaker of the patent No. 201020130624.2 disclosed a kind of miniature circuit breaker in arc structure > >, led arc structure.Mainly solve existing miniature circuit breaker lead arc structure in use electric arc can not enter into fast the problem of arc control device.It is characterized in that: the end of leading arc angle (3) is bending, the bending place (4) of leading arc angle (3) for smooth arc and this bending place (4) corresponding with the end of moving contact (2).This leads arc structure can make electric arc enter into rapidly fiery arc chamber, has improved the breaking capacity of miniature circuit breaker.
But in actual use, such structure also has many problems, and it is shorter that it leads arc passage, cannot lead smoothly fast arc.Lead arc angle position is two forniciform sheet metals simultaneously, if therefore such structure, in vibration, deformation and displacement just easily occurs afterwards, brings potential safety hazard.
Utility model content
The purpose of this utility model is to provide miniature circuit breaker, and arc guide part in prior art is divided and improved.Lead arc quick and precisely, even and suffered that the situations such as collision also can not be subjected to displacement and deformation, safe and reliable.
For reaching described effect, the utility model miniature circuit breaker, comprise housing, arc extinguishing passage is installed in housing, and arc extinguishing passage connects yoke, and described yoke connects leads arc angle, described lead arc angle from above, lead arc sheet and under lead arc sheet and connect to form, on described, lead arc sheet and be fixed in housing and install in clamp, under lead the top that arc sheet is arranged on yoke, lead arc sheet joint for two and form a circular arc type with dead slot.
Preferably, described arc extinguishing passage is comprised of the first arc quenching plate and the second arc quenching plate, and two equal one end of arc quenching plate are connected in yoke, and the other end extends to housing lower end.Like this to lead arc channel design simple, result of use is good.
Preferably, described the first arc quenching plate and the second arc quenching plate are three folding sheet metals, and described the first arc quenching plate length is a times of the second arc quenching plate, and described first arc quenching plate one end is fixed on yoke top, and the second arc quenching plate is fixed on yoke bottom.Such structure forms one two sections wide, middle narrow, and path is smooth but with tortuous arc extinguishing passage, has brought the good and stable arc effect of leading.
Preferably, lead arc sheet one end on described and be provided with bending part, described bending part just in time with clamp be installed mutually mated.Such structure has further improved the connective stability of above leading arc sheet and housing, can not meet accident like this under upheaval or collision.
Owing to having adopted described technical scheme, the utility model is simple in structure, energy-efficient, and rapid heat dissipation can automatic trip in overheated or two kinds of situations of overload, guarantees that whole system used safety.Especially on, lead arc sheet and under lead being fixedly connected with between arc sheet, guaranteed circuit breaker collision under there will not be fault.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the overall structure schematic diagram of the utility model miniature circuit breaker.
Embodiment
As shown in Figure 1, the utility model miniature circuit breaker, comprise housing 1, arc extinguishing passage is installed in housing 1, and arc extinguishing passage connects yoke 2, and described yoke 2 connects leads arc angle, described lead arc angle from above, lead arc sheet 3 and under lead arc sheet 4 and connect to form, on described, lead arc sheet 3 and be fixed in housing and install in clamp, under lead the top that arc sheet 4 is arranged on yoke 2, lead arc sheet joint for two and form a circular arc type with dead slot.Described arc extinguishing passage is comprised of the first arc quenching plate and the second arc quenching plate, and two equal one end of arc quenching plate are connected in yoke 2, and the other end extends to housing lower end.Described the first arc quenching plate and the second arc quenching plate are three folding sheet metals, and described the first arc quenching plate length is a times of the second arc quenching plate, and described first arc quenching plate one end is fixed on yoke 2 tops, and the second arc quenching plate is fixed on yoke 2 bottoms.On described, lead arc sheet 3 one end and be provided with bending part, described bending part just in time mates mutually with installation clamp.
The utility model is the same with circuit breaker of the prior art to be used, but by that extend and smooth and tortuous arc extinguishing passage, has reached and better led arc effect.Last lead up and down the circular arc type structure with dead slot that arc sheet forms, can guarantee to guarantee the arc quenching effect that reaches identical with prior art again, in the situation that being collided or vibrate, can not be subjected to displacement.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification are all encompassed among the scope of the claims of the present utility model.
Claims (2)
1. miniature circuit breaker, comprise housing (1), it is characterized in that, housing is provided with arc extinguishing passage in (1), and arc extinguishing passage connects yoke (2), and described yoke (2) connects leads arc angle, described lead arc angle from above, lead arc sheet (3) and under lead arc sheet (4) and connect to form, on described, lead arc sheet (3) and be fixed in housing and install in clamp, under lead the top that arc sheet (4) is arranged on yoke (2), lead arc sheet joint for two and form a circular arc type with dead slot.
2. miniature circuit breaker as claimed in claim 1, is characterized in that: described arc extinguishing passage is comprised of the first arc quenching plate (5) and the second arc quenching plate (6), and two equal one end of arc quenching plate are connected to yoke (2) above, and the other end extends to housing lower end.
3. miniature circuit breaker as claimed in claim 2, it is characterized in that: described the first arc quenching plate (5) and the second arc quenching plate (6) are three folding sheet metals, described the first arc quenching plate (5) length is a times of the second arc quenching plate (6), described the first arc quenching plate (5) one end is fixed on yoke (2) top, and the second arc quenching plate (6) is fixed on yoke (2) bottom.
4. miniature circuit breaker as claimed in claim 1, is characterized in that: on described, lead arc sheet (3) one end and be provided with bending part, described bending part just in time mates mutually with installation clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320453438.6U CN203503581U (en) | 2013-07-25 | 2013-07-25 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320453438.6U CN203503581U (en) | 2013-07-25 | 2013-07-25 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503581U true CN203503581U (en) | 2014-03-26 |
Family
ID=50334540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320453438.6U Expired - Lifetime CN203503581U (en) | 2013-07-25 | 2013-07-25 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203503581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599909A (en) * | 2015-01-21 | 2015-05-06 | 温州高能电气有限公司 | Wiring mechanism and breaker using the same |
-
2013
- 2013-07-25 CN CN201320453438.6U patent/CN203503581U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599909A (en) * | 2015-01-21 | 2015-05-06 | 温州高能电气有限公司 | Wiring mechanism and breaker using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU HONYAR ELECTRIC POWER CO., LTD. Free format text: FORMER NAME: HANGZHOU HONGYAN GAIYIER ELECTRIC APPLIANCES CO., LTD.;HANGZHOU SWANGOOSE ELECTRICAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 311305, No. 99, South Ring Road, Qingshan Lake Street, Hangzhou City, Zhejiang Province, Ling'an Patentee after: HANGZHOU HONYAR ELECTRICAL Co.,Ltd. Address before: The three District of Hangzhou City, Zhejiang province 310007 Xihu District Tsui Qinglong Bridge Patentee before: HANGZHOU HONYAR GEYER ELECTRICAL APPLIANCE Co.,Ltd. Patentee before: HANGZHOU HONYAR ELECTRICAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |