CN2368151Y - Dilatation -type quickly arc-supressing ac. contactor - Google Patents
Dilatation -type quickly arc-supressing ac. contactor Download PDFInfo
- Publication number
- CN2368151Y CN2368151Y CN 99201814 CN99201814U CN2368151Y CN 2368151 Y CN2368151 Y CN 2368151Y CN 99201814 CN99201814 CN 99201814 CN 99201814 U CN99201814 U CN 99201814U CN 2368151 Y CN2368151 Y CN 2368151Y
- Authority
- CN
- China
- Prior art keywords
- arc
- contact
- contactor
- magnetic conductive
- suppressing
- 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 - Fee Related
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a dilatation-type quickly arc-suppressing ac contactor, which is the improvement of a CJ20 contactor. An arc-suppressing chamber, a magnetic conductive board, an arc-suppressing grid and a short arc sheet forms an arc-suppressing system; the arc-suppressing chamber formed by the arc-shaped arrangement of a set of arc-suppressing grid is arranged in an arc-suppressing cover corresponding to a movable and a static contact contacts; the magnetic conductive board is arranged on the static contact; the outer edges of the magnetic conductive board and the static contact inosculates; the arc-suppressing grid and the short arc sheet are arranged under the top of the arc-suppressing cover; the movable contact assembly is bridge-shaped and is composed of the movable contact, a coupling plate and a contact bridge. The utility model keeps the characteristics of the compact structure of the CJ20 type; the maximum grade current is increased from 630A to 1000A or above 1000A.
Description
The utility model relates to the A.C. contactor in the low-voltage electrical apparatus field, refers in particular to the quick arc extinguishing ac contactor of expanding type.
The CJ20 A.C. contactor that present domestic use has a large capacity and a wide range, its design feature is to take double break point direct dynamic structure, and formal dress is three-dimensional to be arranged, (see " low-voltage electrical apparatus is selected servicing manual for use "/Zheng Mingfang chief editor, ten thousand continue waits revision, 2 editions to compact conformation especially, Beijing, China Machine Press, 1995).But also there are some defectives: the one, potter's clay grid sheet arc extinguishing, the spray arc distance when using, often will be deepened cabinet from excessive in the complete sets of equipment, though arc extinction performance is improved largely than the contactor of other old type, flashover distance is dwindled in present complete industry strong request; The 2nd, the greatest level electric current of design is 630A, if when surpassing the 630A electric current, main contact is subjected to wearing and tearing occurring after heating, overload, the melting welding, reduces the useful life of contactor.
The purpose of this utility model is existing C J20 A.C. contactor is improved, the characteristics that both kept CJ20 type compact conformation, overcome the defective of above-mentioned existence again, provide a kind of expanding type quick arc extinguishing ac contactor, its greatest level electric current equals or exceeds 1000A.
For achieving the above object, the solution that the utility model is taked is: the quick arc extinguishing ac contactor of a kind of expanding type, by electromagnetic system, contact and arc quenching system, support and base etc. are partly formed, formal dress is three-dimensional to be arranged, adopt double break point direct dynamic structure, comprise arc control device in described contact and the arc quenching system, magnetic conductive board, arc-chute and short arc sheet, in arc-extinguish chamber, be provided with the arc extinguishing grid pieces formation arc control device that one group of arc shooting forms with moving contact and the corresponding position of fixed contact, magnetic conductive board is placed on the fixed contact, the outer of fixed contact outer and magnetic conductive board matches, put arc-chute below the middle top of arc-extinguish chamber, the short arc sheet is drawn at the angle on the two ends, the arc-chute left and right sides; Moving contact component in described contact and the arc quenching system is a bridge shape, is made up of moving contact, joint cover and contact bridge.
Have only arc control device in the arc quenching system of CJ20 A.C. contactor, its arc control device are potter's clay grid sheets.In the utility model, because fixed contact outer and magnetic conductive board outer match, and the tracks of electric arc arc root almost is in same plane, can make arc root on the fixed contact like this under the effect of arc current self-excitation magnetic field and magnetic conductive board, can be successfully from the edge transitions of fixed contact to magnetic conductive board; The arc root also can skip to during to root on the contact bridge and is transferred to the short arc sheet very soon at arc motion on the moving contact, forces electric arc to enter in the arc control device that arc extinguishing grid pieces forms and is cut apart and extinguish, and has shortened the quenching time.And the quick transfer of arc root has reduced the temperature rise of contact widely, has reduced the injection of the electric arc of contact material, helps improving the anti-electric abrasioning performance of contact.Therefore, under the constant situation of other spare and accessory parts of CJ20 A.C. contactor, its contact and arc quenching system have been done above-mentioned improvement, just can make the greatest level electric current bring up to 1000A or more than, reached the purpose of joint silver.
Be explained in detail again below in conjunction with embodiment and accompanying drawing thereof good effect the utility model and generation thereof.
Fig. 1 is the structural representation of present embodiment.
Fig. 2 is Fig. 1 moving contact component (10) front view.
Fig. 3 is fixed contact among Fig. 1 (14) and the mutual front view that disposes of magnetic conductive board (12).
Fig. 4 is the vertical view of Fig. 3.
As shown in Figure 1, base (1), base plate (2) are in order to install the electromagnetic system that coil (18), armature (16), yoke (17) etc. constitute, and electromagnetic system is with the switching campaign of the dynamic and static contact mechanism of compositions such as control fixed contact terminal block (15), support (3); Be provided with the arc-extinguish chamber (4) of dynamic/static contact mechanism on base plate (2), the upper surface both sides of support (3) are provided with moving contact component (10), and fixed contact terminal block (15) is provided with and the corresponding fixed contact of moving contact component (10) (14).The main composition of prior art has below roughly been described.
As shown in Figure 1, be provided with arc extinguishing grid pieces (11) the formation arc control device that one group of arc shooting forms with moving contact (8) and the corresponding position of fixed contact (14) in the arc-extinguish chamber (4); Magnetic conductive board (12) is placed on the fixed contact (14), the outer of fixed contact (14) outer and magnetic conductive board (12) matches, as shown in Figure 3, Figure 4, magnetic conductive board (12) is an irony, and screw (13) is fixed on the fixed contact terminal block (15) with fixed contact (14) following of magnetic conductive board (12); Put arc-chute (7) below the middle top of arc-extinguish chamber (4), short arc sheet (9) is drawn at the angle on arc-chute (7) two ends, the left and right sides, and arc-chute (7) can be made an integral body with short arc sheet (9); Moving contact component (10) is a bridge shape, is made up of moving contact (8), joint cover (5) and contact bridge (6).
Above-mentioned design is shortened the quenching time as much as possible; and electric arc is transferred to protection on every side to the ablation effect major part of contact use on the irony magnetic conductive board (12); again owing to be provided with arc-chute (7) and short arc sheet (9); dwindled flashover distance again; and electric arc is introduced arc control device efficiently carry out arc extinguishing; suppress the injection everywhere of electric arc and the release of energy thereof effectively, reduced the damage that electric arc brings.Since the spray arc distance from dwindle significantly, improved the life-span of contact and respective members.
Claims (3)
1, the quick arc extinguishing ac contactor of a kind of expanding type, by electromagnetic system, contact and arc quenching system, part such as support (3) and base (1) is formed, formal dress is three-dimensional to be arranged, adopt double break point direct dynamic structure, it is characterized in that: comprise arc control device in contact and the arc quenching system, magnetic conductive board (12), arc-chute (7) and short arc sheet (9), in arc-extinguish chamber (4), be provided with arc extinguishing grid pieces (11) the formation arc control device that one group of arc shooting forms with moving contact (8) and the corresponding position of fixed contact (14), magnetic conductive board (12) is placed on the fixed contact (14), the outer of fixed contact (14) outer and magnetic conductive board (12) matches, put arc-chute (7) below the middle top of arc-extinguish chamber (4), short arc sheet (9) is drawn at the angle on arc-chute (7) two ends, the left and right sides; Moving contact component (10) is a bridge shape, is made up of moving contact (8), joint cover (5) and contact bridge (6).
2, the quick arc extinguishing ac contactor of a kind of expanding type according to claim 1 is characterized in that: screw (13) is fixed on the fixed contact terminal block (15) with fixed contact (14) following of magnetic conductive board (12).
3, the quick arc extinguishing ac contactor of a kind of expanding type according to claim 1 is characterized in that: arc-chute (7) can be made an integral body with short arc sheet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201814 CN2368151Y (en) | 1999-01-04 | 1999-01-04 | Dilatation -type quickly arc-supressing ac. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201814 CN2368151Y (en) | 1999-01-04 | 1999-01-04 | Dilatation -type quickly arc-supressing ac. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368151Y true CN2368151Y (en) | 2000-03-08 |
Family
ID=33997476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99201814 Expired - Fee Related CN2368151Y (en) | 1999-01-04 | 1999-01-04 | Dilatation -type quickly arc-supressing ac. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2368151Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637898A (en) * | 2018-11-30 | 2019-04-16 | 广东求精电气有限公司 | A kind of A.C. contactor |
-
1999
- 1999-01-04 CN CN 99201814 patent/CN2368151Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637898A (en) * | 2018-11-30 | 2019-04-16 | 广东求精电气有限公司 | A kind of A.C. contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213583681U (en) | Circuit breaker | |
| CN101923973B (en) | Auto transfer switch including cover | |
| CN102339691B (en) | Combined magnetic-quenching device | |
| CN111092007B (en) | Frame-type circuit breaker striking arc extinguishing device and contact arc extinguishing system | |
| CN2368151Y (en) | Dilatation -type quickly arc-supressing ac. contactor | |
| CN201440398U (en) | Expansion large-capacity contactor | |
| CN219203077U (en) | Plastic case circuit breaker explosion chamber layout structure | |
| CN216250541U (en) | Vacuum arc-extinguishing chamber contact structure | |
| CN107393777B (en) | Moulded case circuit breaker with high breaking performance | |
| CN210535544U (en) | Arc extinguishing device | |
| CN210110588U (en) | Arc extinguishing grid sheet layout structure of arc extinguishing chamber | |
| CN107359066A (en) | A kind of breaker jaw type arc-control device | |
| CN111341614B (en) | Contact system of low-voltage circuit breaker | |
| CN218730767U (en) | Static contact for molded case circuit breaker | |
| CN214428584U (en) | Static contact of circuit breaker | |
| CN201252066Y (en) | 24 kV outdoor high-voltage alternating current injection falling type fuse | |
| CN220543822U (en) | Reinforced coil arc extinguishing structure of circuit breaker | |
| CN212303582U (en) | Overload protection circuit breaker switch | |
| CN220933993U (en) | Contact device and switching device | |
| CN2517093Y (en) | Field circuit breaker | |
| CN219553508U (en) | Three-phase longitudinally arranged vacuum circuit breaker with isolating switch | |
| CN221352666U (en) | Wire outlet structure from two side directions of fixed contact and moving contact of circuit breaker | |
| AU7914800A (en) | Electric pole for low-voltage power circuit breaker | |
| CN213815942U (en) | Grounding switch with high switching-on and switching-off capacity | |
| CN216389249U (en) | Arc extinguish chamber structure of low-voltage plastic shell type circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Lin Lijie Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |