CN2459750Y - Small sized circuit breaker - Google Patents
Small sized circuit breaker Download PDFInfo
- Publication number
- CN2459750Y CN2459750Y CN 00265259 CN00265259U CN2459750Y CN 2459750 Y CN2459750 Y CN 2459750Y CN 00265259 CN00265259 CN 00265259 CN 00265259 U CN00265259 U CN 00265259U CN 2459750 Y CN2459750 Y CN 2459750Y
- Authority
- CN
- China
- Prior art keywords
- moving contact
- handle
- electromagnetic trip
- actuator
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a small sized circuit breaker which comprises two connector bases, a static contact, an electromagnetic trip coil, a handle and a bimetal leaf. A moving contact is arranged between the handle and the static contact, and an electromagnetic trip actuator is arranged between the moving contact and the electromagnetic trip coil. The left end point of the actuator is arranged at the center of the electromagnetic coil end, the right end point of the actuator is adjacent to the moving contact, and the top of the actuator is connected with the bimetal leaf by a tripping sheet. The connecting rod crossing through the intermediate section of the tripping sheet and the upper end of the moving contact is connected with the handle. The product has the advantages of small volume, reasonable and compact structure, quick installation, automatic compensation for error, difficult deformation, strong arc extinguishing capability, high reliability and strong breaking capacity.
Description
The utility model relates to a kind of protective overload circuit-breakin, especially automatically discharges the mechanical energy of being stored by the previous operation of hand-reset mechanism when overcurrent, thereby opens the contact, and can carry out instantaneous protection by magnetictrip when the short circuit.
Existing miniature circuit breaker structural design is unreasonable, and the location dimension of shell is had relatively high expectations, and employed material is yielding under the high temperature, and when moving contact was closed, the speed of its speed changed and causes arcing easily, thereby influences the useful life of circuit breaker.
It is little that the purpose of this utility model provides a kind of volume, compactness rational in infrastructure, and the energy Fast Installation, not yielding, stronger arc extinguishing ability is arranged, reliability height, the miniature circuit breaker that breaking capacity is strong.
The utility model miniature circuit breaker, comprise two junction blocks, fixed contact, the electromagnetic trip coil, handle and bimetal leaf, two junction blocks are located at the both sides of miniature circuit breaker respectively, fixed contact is located at the following of electromagnetic trip coil and links to each other with a junction block, be provided with movable iron core in the described electromagnetic trip coil, it is characterized in that being provided with between described handle and fixed contact a moving contact that sways, an end of described moving contact is abutted against with fixed contact versatilely, and its middle part links to each other with bimetal leaf one end by lead, the other end of described bimetal leaf is connected with another junction block, constitutes a power circuit; Between moving contact and electromagnetic trip coil, be provided with the actuator of electromagnetic trip with swaying, the left end point of described actuator places the center of solenoid end, its right endpoint is near moving contact, be abutted against by dropout sheet and bimetal leaf on its top, the middle part of dropout sheet is connected with handle by connecting rod with the groove of moving contact upper end, in the junction of connecting rod and handle be located between the fixed axis on the housing and be provided with extension spring, between described fixed axis and moving contact, be provided with extension spring, the following radiator that also is provided with of described fixed contact, the following connection one striking sheet of radiator, radiator also constitutes arc control device.
The further improvement of the utility model part is made by nonmetallic materials at described actuator and dropout sheet.
Good effect of the present utility model is owing to compare with existing small-sized short-circuiting device, reduced used part, volume is little, and compactness rational in infrastructure is less demanding to the location dimension accuracy of manufacture of shell, the energy Fast Installation, compensation of error can appear voluntarily, and not yielding, stronger arc extinguishing ability is arranged, the reliability height, breaking capacity is strong.
Other details of the present utility model and characteristics can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the small-sized short-circuiting device moving contact of the utility model when closed.
As shown in Figure 1, the utility model miniature circuit breaker, comprise two junction blocks 1,1`, fixed contact 2, electromagnetic trip coil 3, handle 4 and bimetal leaf 5, two junction blocks 1,1` is located at the both sides of miniature circuit breaker respectively, fixed contact 2 is located at the following of electromagnetic trip coil 3 and links to each other with a junction block 1 (not drawing among the figure), is provided with movable iron core 6 in the described electromagnetic trip coil 3, is provided with a moving contact that sways 7 between described handle 4 and fixed contact 2, one end of described moving contact 7 is abutted against with fixed contact 2 versatilely, its middle part links to each other with bimetal leaf 5 one ends by lead 8, and the other end of described bimetal leaf 5 is connected with another junction block 1`, constitutes a power circuit; Between moving contact 7 and electromagnetic trip coil 3, be provided with the actuator 9 of electromagnetic trip with swaying, the left end point of described actuator 9 places the center of electromagnetic trip coil 3 ends, its right endpoint is near moving contact 7, be abutted against by dropout sheet 10 and bimetal leaf 5 on its top, the middle part of dropout sheet 10 is connected with handle 4 by connecting rod 12 with the groove of moving contact 7 upper ends, in the junction of connecting rod 12 and handle 4 be located between the fixed axis 13 on the housing and be provided with extension spring 14, between described fixed axis 13 and moving contact 7, be provided with extension spring 15, the following radiator 16 that also is provided with of described fixed contact 2, the following connection one striking sheet 17 of radiator 16, radiator 16 also constitutes arc control device 11.Described actuator 9 and dropout sheet 10 are made by nonmetallic materials.
The course of work of the present utility model is: with the junction block 1 of this circuit breaker by two ends, 1` is connected in the circuit, drives moving contact 7 by handle 4 drivening rods 12 and circuit breaker is pushed on the position of connection, and promptly moving contact 7 is connected with fixed contact 2, extension spring 14,15 accumulation of energys this moment.When circuit overloads, the bimetal leaf 5 crooked dropout sheets 10 that drive break away from connecting rod 12 and moving contact 7 tops, and extension spring 15 pulling moving contacts 7 make itself and fixed contact 2 separate open circuit.
When circuit breaks down short circuit, produce electric current by solenoid 3, its end produces magnetic, attract the movable core 6 in the electromagnetic trip coil 3, movable core 6 promotes the left end point of actuator 9, and the right endpoint of actuator 9 promotes moving contact 7, connecting rod 12 breaks away from moving contact 7 tops simultaneously, extension spring 15 pulling moving contacts 7 separate itself and fixed contact 2, and circuit breaker is separated rapidly.
When striking occurring, by the following interconnected striking sheet 17 of arc control device 11 and radiator 16.The electric arc pin is gone out.
Claims (2)
1, a kind of miniature circuit breaker, comprise two junction blocks, fixed contact, the electromagnetic trip coil, handle and bimetal leaf, two junction blocks are located at the both sides of miniature circuit breaker respectively, fixed contact is located at the following of electromagnetic trip coil and links to each other with a junction block, be provided with movable iron core in the described electromagnetic trip coil, it is characterized in that being provided with between described handle and fixed contact a moving contact that sways, an end of described moving contact is abutted against with fixed contact versatilely, and its middle part links to each other with bimetal leaf one end by lead, the other end of described bimetal leaf is connected with another junction block, constitutes a power circuit; Between moving contact and electromagnetic trip coil, be provided with the actuator of electromagnetic trip with swaying, the left end point of described actuator places the center of solenoid end, its right endpoint is near moving contact, be abutted against by dropout sheet and bimetal leaf on its top, the middle part of dropout sheet is connected with handle by connecting rod with the groove of moving contact upper end, in the junction of connecting rod and handle be located between the fixed axis on the housing and be provided with extension spring, between described fixed axis and moving contact, be provided with extension spring, the following radiator that also is provided with of described fixed contact, the following connection one striking sheet of radiator, radiator also constitutes arc control device.
2, miniature circuit breaker according to claim 1 is characterized in that being made by nonmetallic materials at described actuator and dropout sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265259 CN2459750Y (en) | 2000-12-13 | 2000-12-13 | Small sized circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265259 CN2459750Y (en) | 2000-12-13 | 2000-12-13 | Small sized circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459750Y true CN2459750Y (en) | 2001-11-14 |
Family
ID=33619676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265259 Expired - Fee Related CN2459750Y (en) | 2000-12-13 | 2000-12-13 | Small sized circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459750Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386837C (en) * | 2003-07-22 | 2008-05-07 | 黑格电子股份有限公司 | Ameliorated lock mechanism for circuit breakers and circuit breaker incorporating such lock |
| CN101609764B (en) * | 2008-06-16 | 2012-07-04 | 北京人民电器厂有限公司 | Contact system with heat dissipation unit |
| CN105513860A (en) * | 2016-01-18 | 2016-04-20 | 刘天保 | Electronic and electromagnetic intelligent switch for high-voltage power systems |
| CN110600343A (en) * | 2019-10-18 | 2019-12-20 | 曲阜师范大学 | Electrical engineering distribution circuit breaker |
| CN111048366A (en) * | 2020-01-02 | 2020-04-21 | 北京机械设备研究所 | High-locking-reliability action switch and power-on and power-off method thereof |
| CN114792613A (en) * | 2022-03-30 | 2022-07-26 | 中群电气有限公司 | Overload quick recovery circuit breaker |
-
2000
- 2000-12-13 CN CN 00265259 patent/CN2459750Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386837C (en) * | 2003-07-22 | 2008-05-07 | 黑格电子股份有限公司 | Ameliorated lock mechanism for circuit breakers and circuit breaker incorporating such lock |
| CN101609764B (en) * | 2008-06-16 | 2012-07-04 | 北京人民电器厂有限公司 | Contact system with heat dissipation unit |
| CN105513860A (en) * | 2016-01-18 | 2016-04-20 | 刘天保 | Electronic and electromagnetic intelligent switch for high-voltage power systems |
| CN110600343A (en) * | 2019-10-18 | 2019-12-20 | 曲阜师范大学 | Electrical engineering distribution circuit breaker |
| CN111048366A (en) * | 2020-01-02 | 2020-04-21 | 北京机械设备研究所 | High-locking-reliability action switch and power-on and power-off method thereof |
| CN111048366B (en) * | 2020-01-02 | 2022-04-15 | 北京机械设备研究所 | High-locking-reliability action switch and power-on and power-off method thereof |
| CN114792613A (en) * | 2022-03-30 | 2022-07-26 | 中群电气有限公司 | Overload quick recovery circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |