CN203038881U - Pressure seal device used for circuit breaker contact system - Google Patents
Pressure seal device used for circuit breaker contact system Download PDFInfo
- Publication number
- CN203038881U CN203038881U CN 201220748600 CN201220748600U CN203038881U CN 203038881 U CN203038881 U CN 203038881U CN 201220748600 CN201220748600 CN 201220748600 CN 201220748600 U CN201220748600 U CN 201220748600U CN 203038881 U CN203038881 U CN 203038881U
- Authority
- CN
- China
- Prior art keywords
- base plate
- contact system
- moving contact
- bus
- circuit breaker
- 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.)
- Withdrawn - After Issue
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Abstract
A pressure seal device used for a circuit breaker contact system comprises a base plate (1). A dynamic contact bus (201) of a dynamic contact system (2) is installed into an installation hole (101) of the base plate (1). The device is characterized in that a sealing bush (3) is arranged between the dynamic contact bus (201) and the installation hole (101) of the base plate (1). The pressure seal device used for the circuit breaker contact system provided in the utility model is not influenced by processing and assembling errors existing between the dynamic contact bus and the base plate. Through sealing an airway mode, the pressure below the contact is increased. An electric arc is guaranteed to spray the arc upwardly. The electric arc generated during segmentation of a strong current is rapidly blown into an arc extinguishing chamber to be cooled and extinguished. The whole structure can be completed only through carrying out simple modification on original equipment. The structure is simple. The installation and maintenance are convenient. Production cost is saved.
Description
Technical field
The utility model belongs to the low voltage electrical apparatus technology field, specifically just relates to a kind of moving contact system of circuit breaker, especially relates to the wiper seal circle mounting structure of the moving contact contact below pressure that can increase circuit breaker.
Background technology
Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application.Low-voltage circuit breaker claims automatic switch again, is commonly called as " air switch " and also refers to low-voltage circuit breaker, and it is a kind of existing hand switch effect, can carry out decompression, under-voltage, overload and the electrical equipment of short-circuit protection again automatically.It can be used to distribute electric energy; do not start asynchronous motor continually; power circuit and motor etc. are carried out protection; can automatic shutdown circuit when serious overload or short circuit and fault such as under-voltage take place for their; its function is equivalent to the combination of Fuse switch and mistake underheat relay etc.; and behind the disjunction fault current, generally do not need to change parts, obtained to use widely.
Circuit breaker is realized the protective feature that it is required by release is installed; its operation principle is: if in control circuit short circuit current or electric shock leakage current over the ground taken place; and when reaching the breaker protection grade; the electronics magnetizing coil of release is after obtaining enough voltage; thereby in the original suction of sealing of release and magnetic circuit, produced the magnetic field opposite with the permanent magnet direction and offset the magnetic field intensity that permanent magnet produces; the reasoning spring that is in compressive state this moment discharges and ejects; push rod is shifted onto; the power that push rod is released triggers shunt release and line security has been protected in line disconnection.
Omnipotent breaker is the important component part in the distribution apparatus; be mainly used in industrial low-voltage power system, be used for connecting and disjunction electrical network circuit in electric current and protection circuit and power-supply device avoid transshipping, the harm of fault such as under voltage, short circuit, single-phase earthing.
The breaking capacity of omnipotent breaker is to weigh the leading indicator of circuit breaker performance.Especially when the heavy current disjunction, moment can produce a large amount of high-temperature electric arcs, and electric arc cools off, extinguishes as if the arc control device that can not enter the circuit breaker top fast, and restrikes between dynamic and static contact, will be with dynamic and static contact damage.In order electric arc to be introduced fast circuit breaker top arc control device, traditional solution is to adopt metal striking sheet that electric arc is introduced arc control device.But owing to exist processing and rigging error between moving contact bus and the base plate, the slit that can exist all the time between two parts, the arcing gas part of can from this slit, scurrying out, cause contact system below pressure to reduce, thereby do not have enough pressure that electric arc is blown into cooling in the arc control device fast, extinguishes, cause hidden danger.
The utility model content
Technical barrier to be solved in the utility model be over against existing circuit breaker moving contact system since processing and rigging error unavoidably, the arcing gas that produces during the heavy current segmentation can be escaped from from the slit and cause not having enough pressure electric arc to be blown in the arc control device defective of cooling off, extinguishing rapidly, a kind of pressure seal arrangement for breaker contact system is provided, can avoid parts assembling slit to the influence of moving contact system pressure, guarantee that the electric arc that the heavy current disjunction produces is blown into cooling in the arc control device rapidly, extinguishes.
Technical scheme
In order to realize above-mentioned technical purpose, a kind of pressure seal arrangement for breaker contact system of the utility model design, it comprises base plate, the moving contact bus of moving contact system is packed in the installing hole of base plate, it is characterized in that: between the installing hole of described moving contact bus and base plate seal cartridge is housed;
Described seal cartridge is the in-flanges ring bush, the in-flanges of seal cartridge stretches in the installing hole, seal cartridge fits tightly on base plate with viscose, and the moving contact bus of moving contact system inserts in the in-flanges hole of ring packing lining, moving contact bus and ring packing lining interference fit.Moving contact bus and seal cartridge interference fit.
Further, described seal cartridge is made of silicon rubber.
Further, the high 2～5mm of the in-flanges of described seal cartridge.
Further, described seal cartridge fusion point is higher than 150 ℃.
Beneficial effect
The pressure seal arrangement that is used for breaker contact system that the utility model provides, be not subjected to exist between moving contact bus and the base plate influence of processing and rigging error, increase contact below pressure by the closed airway mode, guarantee that electric arc can only upwards spray arc, the electric arc that produces during the heavy current segmentation is blown into cooling in the arc control device rapidly, extinguishes, and total only needs to do simple transformation at existing equipment and can finish, and is simple in structure, installation and maintenance are convenient, saved production cost.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is explosive views of the present utility model.
Accompanying drawing 3 is front views of the present utility model.
Accompanying drawing 4 is seal cartridge product figure in the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment
Shown in accompanying drawing 1～4, a kind of pressure seal arrangement for breaker contact system, it comprises base plate 1, the moving contact bus 201 of moving contact system 2 is packed in the installing hole 101 of base plate 1, wherein, 101 of the installing holes of described moving contact bus 201 and base plate 1 are equipped with seal cartridge 3;
Described seal cartridge 3 is the in-flanges ring bush, the in-flanges 301 of seal cartridge 3 stretches in the installing hole 101, seal cartridge 3 usefulness viscoses fit tightly on base plate 1, the moving contact bus 201 of moving contact system 2 inserts in the in-flanges hole 302 of ring packing lining 3 moving contact bus 201 and ring packing lining 3 interference fit.Moving contact bus 201 and seal cartridge 3 interference fit.
Described seal cartridge 3 usefulness silicon rubber are made.
The in-flanges 301 high 2～5mm of described seal cartridge 3.
Described seal cartridge 3 fusion points are higher than 150 ℃.
The pressure seal arrangement that is used for breaker contact system that the utility model provides, slit complete closed between moving contact bus 201 and the base plate 1, the contact below is not leaked gas, lose heart, total is not subjected to exist between moving contact bus and the base plate influence of processing and rigging error, increase contact below pressure by the closed airway mode, guarantee that electric arc can only upwards spray arc, the electric arc that produces during the heavy current segmentation is blown in the arc control device rapidly and cools off, extinguish, total only needs to do simple transformation at existing equipment and can finish, simple in structure, installation and maintenance are convenient, saved production cost.
Claims (4)
1. pressure seal arrangement that is used for breaker contact system, it comprises base plate (1), the moving contact bus (201) of moving contact system (2) is packed in the installing hole (101) of base plate (1), it is characterized in that: between the installing hole (101) of described moving contact bus (201) and base plate (1) seal cartridge (3) is housed;
Described seal cartridge (3) is the in-flanges ring bush, the in-flanges (301) of seal cartridge (3) stretches in the installing hole (101), seal cartridge (3) fits tightly on base plate (1) with viscose, the moving contact bus (201) of moving contact system (2) inserts in the in-flanges hole (302) of ring packing lining (3), moving contact bus (201) and ring packing lining (3) interference fit.Moving contact bus (201) and seal cartridge (3) interference fit.
2. a kind of pressure seal arrangement for breaker contact system as claimed in claim 1, it is characterized in that: described seal cartridge (3) is made of silicon rubber.
3. a kind of pressure seal arrangement for breaker contact system as claimed in claim 1 is characterized in that: the high 2～5mm of in-flanges (301) of described seal cartridge (3).
4. a kind of pressure seal arrangement for breaker contact system as claimed in claim 1, it is characterized in that: described seal cartridge (3) fusion point is higher than 150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220748600 CN203038881U (en) | 2012-12-29 | 2012-12-29 | Pressure seal device used for circuit breaker contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220748600 CN203038881U (en) | 2012-12-29 | 2012-12-29 | Pressure seal device used for circuit breaker contact system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038881U true CN203038881U (en) | 2013-07-03 |
Family
ID=48690977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220748600 Withdrawn - After Issue CN203038881U (en) | 2012-12-29 | 2012-12-29 | Pressure seal device used for circuit breaker contact system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065898A (en) * | 2012-12-29 | 2013-04-24 | 上海良信电器股份有限公司 | Pressure sealing device used for circuit breaker contact system |
-
2012
- 2012-12-29 CN CN 201220748600 patent/CN203038881U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065898A (en) * | 2012-12-29 | 2013-04-24 | 上海良信电器股份有限公司 | Pressure sealing device used for circuit breaker contact system |
| CN103065898B (en) * | 2012-12-29 | 2015-07-22 | 上海良信电器股份有限公司 | Pressure sealing device used for circuit breaker contact system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20150722 |
|
| RGAV | Abandon patent right to avoid regrant |