CN2541948Y - Small breaker - Google Patents
Small breaker Download PDFInfo
- Publication number
- CN2541948Y CN2541948Y CN 02208840 CN02208840U CN2541948Y CN 2541948 Y CN2541948 Y CN 2541948Y CN 02208840 CN02208840 CN 02208840 CN 02208840 U CN02208840 U CN 02208840U CN 2541948 Y CN2541948 Y CN 2541948Y
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- minimal type
- base
- small
- sized
- 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
- Breakers (AREA)
Abstract
The utility model relates to a small-sized circuit breaker, and is characterized in that a casing which is combined by a base and a roof board can be used as the small-sized circuit breaker and can also be used as a small-sized earth-leakage circuit breaker, when two poles are used as the small-sized earth-leakage circuit breaker, the N-pole small-sized earth-leakage circuit breaker is internally mounted, a zero-sequence mutual-inductor is placed in a groove body which is opened for an arc-extinguishing cover of the L-pole small-sized circuit breaker and is arranged in the base, an electronic circuit plate is arranged in the groove body which is opened for a flash barrier of the L-pole circuit breaker, a coil release is arranged at the position which is arranged by an magnet coil which is arranged in the L-pole small-sized circuit breaker, the L-pole small-sized circuit breaker and the N-pole small-sized earth-leakage circuit breaker which are consistent in appearances can be respectively and singly used and can also be connected for use, which achieves overload protection, short-circuit protection, and personal safety protection. The utility model has the advantages of compact structure, mutually convenient connection, and versatility.
Description
Technical field
The utility model relates to a kind of low-voltage circuit breaker.
Background technology
Low-voltage circuit breaker is a kind of important protection electrical equipment, as overload, short circuit or the under voltage protection of AC and DC circuit, also can be used for not frequent make-break operation circuit.Existing low-voltage circuit breaker is when faults such as the serious overload of circuit generation, short circuit, and the disengagement failure circuit is protected the electric equipment that is connected on its back effectively automatically.But existing low-voltage circuit breaker can not be used for personal electrical shock protection, in order to protect personal safety, often needs earth leakage circuit breaker is installed in addition, makes structure and complex circuit.
The utility model content
In order to overcome the deficiency that existing circuit breaker can not be used for personal electrical shock protection; the utility model provides a kind of miniature circuit breaker; this circuit breaker both can be used as miniature circuit breaker and had used; can be used as small-sized residual current circuit breaker again; also both can be connected, both can make overload, short-circuit protection, can do personnel protection again; have versatility, and simple in structure, compact.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of miniature circuit breaker, comprise base, top cover, handle, push-rod assembly, moving contact, fixed contact, snap close, tripping, bimetal leaf, impeller-hub and moving iron core, static iron core, be in the cell body that comes the arc cover to be opened in the L minimal type circuit breaker zero-sequence transformer to be installed on base, one electronic circuit board is installed in the cell body of opening for the flash barrier of L minimal type circuit breaker on base, one coil release is installed on the position of arranging for the solenoid in the L minimal type circuit breaker on base, is then formed a N minimal type residual current circuit breaker consistent with L minimal type circuit breaker profile; Zero-sequence transformer links to each other with electronic circuit board by lead, and the coil release is installed in outside moving iron core and the static iron core.
Described N minimal type residual current circuit breaker can be connected by lead with L minimal type circuit breaker.
Because original-pack arc-extinguish chamber, arc extinguishing board and solenoid place replace a zero-sequence transformer, an electronic circuit board and a coil release are installed respectively in the utility model miniature circuit breaker, can make L minimal type circuit breaker form N minimal type residual current circuit breaker, both bases are identical with top cover, make both profile unanimities.2 utmost points only need or not other die sinking tool adorning in the small-sized residual current circuit breaker in the inner casing of miniature circuit breaker as the small-sized residual current circuit breaker time spent, and production and processing is convenient in injection mo(u)lding separately, saves cost.
The beneficial effects of the utility model are: the utility model both can be used as miniature circuit breaker usefulness, made overload, short-circuit protection, can be used as small-sized residual current circuit breaker again, did personnel protection, also both can be connected, and made it to have versatility.Both profile unanimities of the utility model, volume is little, and compact conformation is easy to connect.
Description of drawings
Fig. 1 is the utility model miniature circuit breaker and and earth leakage protective connection layout
1. moving iron core 2. push rods 3. test buttons 4. spring steel wires among the figure
5. coil release 6. handles 7. static iron cores
8. push-rod assembly 9. zero-sequence transformer 10. snap closes
11. electronic circuit board 12. fixed contacts 13. moving contacts
14. bimetal leaf 15. impeller-hubs 16. trippings
17. base 18. arc-extinguish chambers 19. flash barriers
20. solenoid 21. leads 22. cell bodies
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified
Figure 1 shows that an embodiment of the present utility model.This miniature circuit breaker comprises base 17, top cover, handle 6, push-rod assembly 8, moving contact 13, fixed contact 12, snap close 10, tripping 16, bimetal leaf 14, impeller-hub 15 and moving iron core 1, static iron core 7.Base 17 and top cover are formed the shell of miniature circuit breaker.Push-rod assembly 8 links to each other with handle 6, and driving handle 6 can make push-rod assembly 8 promote moving contacts 13, with relative and fixed contact 12 that put contacts.Bimetal leaf 14 is placed in a side of snap close 10, and can promote adjacent impeller-hub 15 after making bimetal leaf 14 bendings, and tripping 16 is rotated.Push rod 2 is located among moving iron core 1 and the static iron core 7.When electric current was especially big, moving iron core 1 action of electromagnetic system made to promote push rod 2.
The shell that the utility model is made up of base and top cover can be made miniature circuit breaker usefulness, also can make small-sized residual current circuit breaker and use.2 utmost points are as the small-sized residual current circuit breaker time spent, adorning in the N minimal type residual current circuit breaker, being about to zero-sequence transformer 9 is placed in the cell body of being opened for the arc-extinguish chamber 18 in the L minimal type circuit breaker on the base, electronic circuit board 11 is placed in the cell body of being opened for the flash barrier 19 in the L minimal type circuit breaker on the base 17, coil release 5 is placed on the position of being arranged for the solenoid 20 in the L minimal type circuit breaker on the base 17, forms a N minimal type residual current circuit breaker consistent thus with L minimal type circuit breaker profile.Zero-sequence transformer 9 links to each other with electronic circuit board 11 by lead, and coil release 5 is installed in outside moving iron core 1 and the static iron core 7.
L minimal type circuit breaker and N minimal type residual current circuit breaker can be distinguished use separately, and the former realizes that overload, short-circuit protection, the latter protect the person.Both also can be connected by lead, and both the electric equipment in the protection circuit was protected personal safety again.
Be equipped with as earth leakage protective test button 3 on the top of the base 17 of N minimal type residual current circuit breaker and top cover, press this test button 3, short circuit by force is with trip the immediately performance of outage of advance copy utility model.
In the cell body 22 outside the base of N minimal type residual current circuit breaker a spring steel wire 4 is housed, one end of this spring steel wire 4 is connected with the end that L minimal type moving contact of breaker top contacts by lead 21, the other end of spring steel wire 4 enters the test button 3 of N minimal type residual current circuit breaker, connect as spring, make be connected electronic circuit board on contact can contact; The other end of test button 3 is connected on the electronic circuit board 11N utmost point power supply by resistor; Draw a lead in the middle of the spring steel wire 4 and connect electronic circuit board 11, as L utmost point accessory power supply.
When L minimal type breaker closing, the test button power line is from the contact of L utmost point moving contact top, and the electric leakage accessory power supply is switched on simultaneously.
When L minimal type circuit breaker separated, the test button power line separated from L utmost point moving contact top, and the electric leakage accessory power supply cuts off the power supply simultaneously.
Above operating process can prevent that power supply burns out electric leakage annex and test resistance device when circuit breaker reverse graft power supply.
The course of work of the present utility model is as follows:
Be made up of base and top cover when the utility model dropout and operating mechanism, contact and arc control device have been installed in the shell, as the miniature circuit breaker time spent, the elemental motion of its operation is:
1,, makes the push-rod assembly 8 that links to each other with handle 6 promote moving contact 13 and contact energized with fixed contact 12 by pulling handle motion.Snap close 10 pins moving contact 13 simultaneously, and it is kept and fixed contact 12 contact conditions.
2, when overcurrent or short circuit, utilize bimetal leaf 14 bendings to stir the impeller-hub 15 that is connected with tripping 16, make tripping 16 rotations or utilize electromagnetic system to make the iron core action, promote push rod 2 and back down tripping 16 rotations, thereby back down snap close 10, moving contact 13 and fixed contact 12 are separated, reach the outage purpose.
When 2 utmost points are used as the small-sized residual current circuit breaker time spent,, just in the case circuit breaker of above-mentioned base and top cover composition, increase the zero-sequence transformer and the disengaging deivce of earth leakage that can detect leakage current adorning in the N minimal type residual current circuit breaker.The elemental motion of its operation is: when the electric leakage or the person occurring and touch live wire, the secondary side of zero-sequence transformer just induces signal code, makes the disengaging deivce of earth leakage action, and circuit breaker promptly disconnects fast, and the protection person preserves from.
Claims (4)
1, a kind of miniature circuit breaker, comprise base, top cover, handle, push-rod assembly, moving contact, fixed contact, snap close, tripping, bimetal leaf, impeller-hub and moving iron core, static iron core, it is characterized in that: go up at base (17) zero-sequence transformer (9) is installed in the cell body of being opened for the arc-extinguish chamber (18) in the L minimal type circuit breaker, go up installation one electronic circuit board (11) in the cell body of being opened for the flash barrier (19) of L minimal type circuit breaker at base (17), go up installation one coil release (5) on the position of being arranged at base (17), then form a N minimal type residual current circuit breaker consistent with L minimal type circuit breaker profile for the solenoid (20) in the L minimal type circuit breaker; Zero-sequence transformer (9) links to each other with electronic circuit board (11) by lead, and coil release (5) is installed in outside moving iron core (1) and the static iron core (7).
2, miniature circuit breaker according to claim 1 is characterized in that: described N minimal type residual current circuit breaker can be connected by lead with L minimal type circuit breaker.
3, miniature circuit breaker according to claim 1 is characterized in that: be equipped with on the top of described base (17) and top cover as earth leakage protective test button (3).
4, according to claim 2 or 3 described miniature circuit breakers, it is characterized in that: in the cell body (22) outside the base of described N minimal type residual current circuit breaker a spring steel wire (4) is housed, one end of this spring steel wire (4) is connected with the end that L minimal type moving contact of breaker top contacts, the other end of spring steel wire (4) enters the test button (3) of N minimal type residual current circuit breaker, connect as spring, make be connected electronic circuit board on contact can contact; The other end of test button (3) is connected on electronic circuit board (11) the N utmost point power supply by resistor; Draw a lead in the middle of the spring steel wire (4) and connect electronic circuit board (11), as L utmost point accessory power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02208840 CN2541948Y (en) | 2002-04-01 | 2002-04-01 | Small breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02208840 CN2541948Y (en) | 2002-04-01 | 2002-04-01 | Small breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541948Y true CN2541948Y (en) | 2003-03-26 |
Family
ID=33689417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02208840 Expired - Fee Related CN2541948Y (en) | 2002-04-01 | 2002-04-01 | Small breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541948Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465246B (en) * | 2009-01-15 | 2010-11-17 | 杭州乾龙电器有限公司 | Method for matching minitype case of large current rating plastic case creepage circuit breaker |
| CN104282511A (en) * | 2013-07-01 | 2015-01-14 | 施耐德电器工业公司 | Modularized electronic miniature circuit breaker and electrical system using the same |
-
2002
- 2002-04-01 CN CN 02208840 patent/CN2541948Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465246B (en) * | 2009-01-15 | 2010-11-17 | 杭州乾龙电器有限公司 | Method for matching minitype case of large current rating plastic case creepage circuit breaker |
| CN104282511A (en) * | 2013-07-01 | 2015-01-14 | 施耐德电器工业公司 | Modularized electronic miniature circuit breaker and electrical system using the same |
| CN104282511B (en) * | 2013-07-01 | 2017-05-17 | 施耐德电器工业公司 | Modularized electronic miniature circuit breaker and electrical system using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200993948Y (en) | Safety earth fault circuit breaker | |
| CN201018127Y (en) | Novel leakage protection socket | |
| JP2007504631A (en) | Power switch | |
| CN102610448A (en) | Two-way connectable electromagnetic leakage circuit breaker with overcurrent protection | |
| CN101114557A (en) | Safety circuit breaker | |
| CN201018126Y (en) | Creepage protecting socket with service life expiration detecting function | |
| CN100394524C (en) | Breaker of large-capacity vacuum short-cut current | |
| CN101212133B (en) | Plastic-shell electromechanical integrated three-phase AC motor protector with energy storage and impact device | |
| CN101192731B (en) | Secure leakage protection jack with life termination detection function | |
| CA2364989A1 (en) | Circuit breaker with bypass conductor commutating current out of the bimetal during short circuit interruption and method of commutating current out of bimetal | |
| CN113903633A (en) | Earth fault circuit break protector for fault wiring circuit break protection | |
| CN2541948Y (en) | Small breaker | |
| CN2857211Y (en) | Drop-out device for large capacity vacuum short-circuit current | |
| CN202513093U (en) | Bidirectionally wirable electromagnetic leakage circuit breaker with over-current protection | |
| CN2599734Y (en) | Automatic cut-off for arc fault | |
| CN200947507Y (en) | Creepage protecting socket | |
| CN2731693Y (en) | Leakage protecting breaker | |
| US6441709B2 (en) | Device for short-circuit protection | |
| CN213366509U (en) | Reset control mechanism of air circuit breaker | |
| CN201160218Y (en) | Plastic-shell-type dynamoelectric integrated three phase AC electric motor protector with energy accumulation clasher | |
| CN2548249Y (en) | Indoor high-voltage vacuum circuit breaker | |
| CN2459750Y (en) | Small sized circuit breaker | |
| CN1171261C (en) | Long-service silver-saving switch appliance with arc transfer contact | |
| CN2307363Y (en) | Electronic leakage protective circuit-breaker | |
| CN102347175A (en) | Electronic releaser for molded case circuit breaker |
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 |