CN2545697Y - Electromagnetic circuit breaker - Google Patents
Electromagnetic circuit breaker Download PDFInfo
- Publication number
- CN2545697Y CN2545697Y CN 02234159 CN02234159U CN2545697Y CN 2545697 Y CN2545697 Y CN 2545697Y CN 02234159 CN02234159 CN 02234159 CN 02234159 U CN02234159 U CN 02234159U CN 2545697 Y CN2545697 Y CN 2545697Y
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- CN
- China
- Prior art keywords
- contact
- coil
- moving contact
- breaker according
- electromagnetic 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
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Abstract
The utility model provides an electromagnetic circuit breaker, which comprises a contact system, an interrupter, an on-off mechanism and a plastic shell. The contact system comprises a static contact and a dynamic contact. The utility model is characterized in that a bracket is placed in the plastic shell. An electromagnet, which is formed by a coil being wound on the outer surface of a damper, is fixed on the bracket. One end of the coil is connected with a load terminal. The other end of the coil is connected with the dynamic contact. The static contact is connected with an input terminal. The top of the electromagnet is provided with a pole shoe. The pole shoe is provided with a keeper, which is connected with the on-off mechanism. The utility model can be widely used in the low-voltage distribution system of civil, industrial and commercial departments. The utility model has the functions of protecting, controlling, converting and switching on or switching off the power supply. The utility model is also capable of realizing remote warning and monitoring and multi-polar linkage.
Description
Affiliated technical field
The utility model relates to the circuit breaker in the low-voltage electrical apparatus field, refers in particular to a kind of electromagnetic breaker.
Background technology
Circuit breaker is mainly used in electric equipment in the protection alternating current-direct current low voltage electric network; make it to avoid the harm of abnormal conditions such as overcurrent, reverse current, short circuit, under voltage and electric leakage; also can be used for simultaneously the usefulness of Fraquent start motor not and operation or change-over circuit, it generally is made up of contact system, arc control device, trip free device, operating mechanism, overcurrent trip, under voltage (decompression) release, shunt release, auxiliary contact, shell or framework etc.Existing low-voltage circuit breaker has only protection, control action, and overlond trip and short circuit are threaded off to be finished by release separately respectively and caused the volume that opens circuit bigger, and the dropout performance is subjected to the influence of variation of ambient temperature bigger.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned shortcoming that prior art exists; a kind of electromagnetic breaker is provided; it can be widely used in all departments' low-voltage distribution systems such as civilian, industrial and commerce; play protection, control, change and be switched on or switched off the power supply effect; and can accomplish remote alarms and monitoring, realize multipole interlock easily.
For achieving the above object, the solution that the utility model is taked is: a kind of electromagnetic breaker, comprise contact system, arc control device, on off mechanism, plastic casing, contact system comprises fixed contact and moving contact, its feature placing rack in plastic casing, coil is fixed on the support around the electromagnet that the damper outer surface constitutes, one of coil is connected to load terminal, the other end is connected to moving contact, fixed contact is connected to input terminal, the upper end of electromagnet is a pole shoe, and an armature that is connected with on off mechanism is arranged above the pole shoe.
The moving contact below is equipped with auxiliary switch and cooperates alarm of formation with moving contact, and auxiliary switch is connected to outlet terminal.
Preformed hole is all arranged on plastic casing and the support.
Described damper is made up of spring, damping fluid, iron core.
When electric current will produce magnetic flux during by coil, iron core is moved upward.When electric current is normal current, the magnetic flux that coil produced be not enough to overcome the elastic force of damper inner spring and damping fluid damping action, iron core can not attracted to pole shoe, it is motionless that armature keeps.During overload, flow through the rated current of the electric current of coil greater than circuit breaker, the magnetic flux that coil produces is enough to overcome the damping action of spring force and damping fluid, and iron core moves by pole shoe to the pole shoe direction and holds, armature is also held by pole shoe, and armature pulling on off mechanism disconnects moving contact and fixed contact.
The moving contact below is equipped with auxiliary switch, and after moving contact and fixed contact disconnection, auxiliary switch works and sends signal and export from outlet terminal, just can accomplish remote alarms or monitoring.
Preformed hole is all arranged on plastic casing and the support, in the time will being combined into multipole circuit breaker, the multipole interlock that STATEMENT OF FEDERALLY SPONSORED has just realized circuit breaker just is installed in preformed hole.
The utlity model has following characteristics: (1) is taken off overload and is threaded off integrated with short circuit owing to adopted electromagnetic tripping apparatus one electromagnet.(2) dropout performance only depends on that electric current flows through the magnetic flux that coil produces, and is not subjected to the influence of variation of ambient temperature.(3) circuit breaker does not need cooling time, if the fault current elimination, just can be closed more immediately.(4) opening between the dynamic and static contact of circuit breaker apart from big especially, shell adopts the good plastics of insulation property to make, and insulation property are good especially, also can be used to install switching isolator.(5) change coil turn, can select the rated current of circuit breaker arbitrarily.(6) short circuit breaking capacity of circuit breaker is good especially, satisfies the protection requirement of low-voltage electrical apparatus fully.(7) be subjected to the influence of various factorss such as magnetic flux of the coil of damper and outer surface thereof the operate time of circuit breaker, adjustable means are many.(8) the adapted auxiliary switch can carry out concentrated alarm and remote monitoring to the closing of circuit breaker, branch state.(9) with the single-pole circuit breaker be elementary cell, can be assembled into multipole functional product easily.(10), can link together or single action having this function single-pole circuit breaker assembling respectively if in the Circuits System two or more different voltage and currents are arranged.
Description of drawings
Below in conjunction with embodiment and accompanying drawing thereof the good effect of the utility model and generation thereof is remake description.
Fig. 1 is the structural representation of present embodiment.
Among the figure: 1, pull bar, 2, support, 3, operating grip, 4, armature, 5, pole shoe, 6, coil, 7, arc control device, 8, damper, 9, load terminal, 10, auxiliary switch, 11, outlet terminal, 12, fixed contact, 13, input terminal, 14, moving contact, 15, plastic casing.
Embodiment
As shown in Figure 1, a kind of electromagnetic breaker, comprise contact system, arc control device 7, on off mechanism, plastic casing 15, contact system comprises fixed contact 12 and moving contact 14, its feature is placing rack 2 in plastic casing 15, coil 6 is fixed on the support 2 around the electromagnet that damper 8 outer surfaces constitute, one of coil 6 is connected to load terminal 9, the other end is connected to moving contact 14, fixed contact 12 is connected to input terminal 13, the upper end of electromagnet is a pole shoe 5, and an armature that is connected with on off mechanism 4 is arranged above the pole shoe 5.
As shown in Figure 1, moving contact 14 belows have been installed auxiliary switch 10 and have been cooperated alarm of formation with moving contact 14, and auxiliary switch 10 is connected to outlet terminal 11.
As shown in Figure 1, on plastic casing 15 and the support 2 preformed hole is arranged all.
As shown in Figure 1, described damper 8 is made up of spring, damping fluid, iron core.
As shown in Figure 1, support 2 tops are passed through pull bar 1 and are linked to each other with moving contact rack with pin attended operation handle 3, operating grip 3, have constituted described on off mechanism.When operating grip 3 action, just make moving contact 14 and fixed contact 12 minutes or close by pull bar 1.
As shown in Figure 1, an end of coil 6 with terminal block link to each other with load terminal 9, the other end is to link to each other with the moving contact 14 that is connected with pin on the support 2 with being flexible coupling.
As shown in Figure 1, armature 4 usefulness pins are connected support 2.
The all departments such as that the utility model is applicable to is civilian, industry and commerce are more suitable in reliability and essence Spend demanding various device, such as various special equipments such as railways train operation signal power sources, a protection, Detect, change and be switched on or switched off power supply, and have remote alarms and monitoring function.
Claims (7)
1, a kind of electromagnetic breaker, comprise contact system, arc control device (7), on off mechanism, plastic casing (15), contact system comprises fixed contact (12) and moving contact (14), it is characterized in that: the interior placing rack of plastic casing (15) (2), coil (6) is fixed on the support (2) around the electromagnet that damper (8) outer surface constitutes, one of coil (6) is connected to load terminal (9), the other end is connected to moving contact (14), fixed contact (12) is connected to input terminal (13), the upper end of electromagnet is pole shoe (5), and an armature that is connected with on off mechanism (4) is arranged above the pole shoe (5).
2, a kind of electromagnetic breaker according to claim 1 is characterized in that: described moving contact (14) below is equipped with auxiliary switch (10) and cooperates alarm of formation with moving contact (14), and auxiliary switch (10) is connected to outlet terminal 11.
3, a kind of electromagnetic breaker according to claim 1 is characterized in that: on described plastic casing (15) and the described support (2) preformed hole is arranged all.
4, a kind of electromagnetic breaker according to claim 1 is characterized in that: described damper (8) is made up of spring, damping fluid, iron core.
5, a kind of electromagnetic breaker according to claim 1 is characterized in that: described support (2) top is passed through pull bar (1) and is linked to each other with moving contact rack with pin attended operation handle (3), operating grip (3), has constituted described on off mechanism.
6, a kind of electromagnetic breaker according to claim 1 is characterized in that: an end of described coil (6) with terminal block link to each other with load terminal (9), the other end be be flexible coupling be connected support (2) with pin on moving contact (14) link to each other.
7, a kind of electromagnetic breaker according to claim 1 is characterized in that: described armature (4) is connected on the described support (2) with pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234159 CN2545697Y (en) | 2002-05-19 | 2002-05-19 | Electromagnetic circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234159 CN2545697Y (en) | 2002-05-19 | 2002-05-19 | Electromagnetic circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2545697Y true CN2545697Y (en) | 2003-04-16 |
Family
ID=33709087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02234159 Expired - Fee Related CN2545697Y (en) | 2002-05-19 | 2002-05-19 | Electromagnetic circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2545697Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971281A (en) * | 2008-02-19 | 2011-02-09 | 西门子工业公司 | Multi-pole armature interlock for circuit breakers |
| CN102187420A (en) * | 2008-10-15 | 2011-09-14 | Abb股份公司 | Low voltage circuit breaker |
-
2002
- 2002-05-19 CN CN 02234159 patent/CN2545697Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971281A (en) * | 2008-02-19 | 2011-02-09 | 西门子工业公司 | Multi-pole armature interlock for circuit breakers |
| CN101971281B (en) * | 2008-02-19 | 2013-09-04 | 西门子工业公司 | Multi-pole armature interlock for circuit breakers |
| CN102187420A (en) * | 2008-10-15 | 2011-09-14 | Abb股份公司 | Low voltage circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030416 |