CN201820722U - Tripping device of operating mechanism of circuit breaker - Google Patents
Tripping device of operating mechanism of circuit breaker Download PDFInfo
- Publication number
- CN201820722U CN201820722U CN2010202310103U CN201020231010U CN201820722U CN 201820722 U CN201820722 U CN 201820722U CN 2010202310103 U CN2010202310103 U CN 2010202310103U CN 201020231010 U CN201020231010 U CN 201020231010U CN 201820722 U CN201820722 U CN 201820722U
- Authority
- CN
- China
- Prior art keywords
- lubricating cup
- oil cup
- iron core
- armature
- 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
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Abstract
The utility model relates to a tripping device of an operating mechanism of a circuit breaker, comprising an oil cup, an oil cup cap is fixed at an oil cup opening, silicone oil is filled in the oil cup, a movable iron core is arranged in the oil cup, an iron core spring is arranged between the movable iron core and the oil cup cap, a pole shoe is arranged at the outer side of one end of the oil cup opposite to the oil cup cap, a fixing frame is arranged at the lower part of the pole shoe, the oil cup is fixed on the fixing frame, an armature is rotationally connected on the fixing frame, the armature and the oil cup are arranged side by side, a magnet coil is wound on the outer wall of the oil cup between the fixing frame and the oil cup cap, a restoring spring is arranged at the outer side of the upper end of the armature, and an adjusting screw is arranged at the other end of the restoring spring. The tripping device is simple in structure, and exquisite and reasonable and is easy and convenient to process and assemble.
Description
Technical field
The utility model relates to the circuit breaker operation mechanism field, specifically a kind of trip gear of circuit breaker operation mechanism.
Background technology
The trip gear of existing circuit breaker generally comprises solenoid; permanent magnet; armature; push rod and back-moving spring; 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; in the adhesive magnetic circuit of the original sealing of release, produced the magnetic field opposite with the permanent magnet direction; thereby offset the magnetic field intensity that permanent magnet produces; the thrust spring that is in compressive state this moment discharges and ejects; push rod is released; the power that push rod is released triggers circuit breaker tripping and line disconnection, has protected the safety of circuit.Usually the trip gear of circuit breaker often adopts the bimetallic thermal element as the overload detection action element because of technical limitations.But additionally consume energy when having brought work.Along with the requirement of modern social development's low-carbon (LC) life, adopt the electric elements of low power consuming to become inevitable.
The utility model content
The purpose of this utility model is for providing a kind of raising alternating current-direct current breaking capacity, the trip gear of the circuit breaker operation mechanism of the arc extinguishing ability of enhancing low capacity equipment circuit breaker
The technical scheme that realizes the foregoing invention purpose is as follows:
A kind of trip gear of circuit breaker operation mechanism, comprise a lubricating cup, described lubricating cup mouth place is fixed with the lubricating cup cap, be full of silicone oil in the lubricating cup, be provided with a moving iron core in the lubricating cup, be provided with an iron core spring between moving iron core and the lubricating cup cap, the lubricating cup outside of a relative end with the lubricating cup cap is provided with a pole shoe, the pole shoe bottom is provided with a fixed mount, and described lubricating cup is fixed on the fixed mount, and the armature that also is rotationally connected on the fixed mount, described armature and lubricating cup are arranged side by side, be wound with solenoid on the lubricating cup outer wall between fixed mount and the lubricating cup cap, the outside, upper end of described armature is provided with a back-moving spring, and the other end of described back-moving spring is provided with a set screw.
The course of work of the present utility model is as follows: when the electric current in the solenoid during smaller or equal to rated current, moving iron core is positioned at the end one end of lubricating cup, when current overload, moving iron core begins to move to lubricating cup cap one end, when moving iron core moved to lubricating cup cap one end, armature was attracted to the lubricating cup cap, and made the circuit breaker open circuit, at this moment, produce the formulation time-delay and divide deenergizing.When serious overload of circuit or short circuit, the electromagnetic force that solenoid produces directly makes armature and the adhesive mutually of lubricating cup cap, makes the circuit breaker open circuit, no matter where moving iron core is in, in such cases, the instantaneous disjunction of circuit.Back-moving spring makes armature bear certain power, and armature just can be adsorbed after the power of having only solenoid to produce balanced out this power.Set screw can increase or reduce the power of action of reset spring in armature, thereby changes the resistance of lubricating cup adhesive armature, realizes modulability.The utility model is simple in structure, and is rationally exquisite, and the processing assembling is easy easily.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is applied in structural representation (circuit breaker access failure) in the circuit breaker for the utility model;
Fig. 3 is applied in structural representation (closing of power circuit breaker) in the circuit breaker for the utility model.
The number in the figure explanation:
1, back-moving spring; 2, moving iron core; 3, iron core spring; 4, solenoid; 5, silicone oil; 6, lubricating cup cap; 7, armature; 8, set screw; 9, permanent magnet; 10, fixed mount; 11, handle; 12, tripping; 13; Moving contact; 14, lubricating cup; 15, fixed contact; 16, dropout part.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, a kind of trip gear of circuit breaker operation mechanism, comprise a lubricating cup 14, lubricating cup mouth place is fixed with lubricating cup cap 6, be full of silicone oil 5 in the lubricating cup 14, be provided with a moving iron core 2 in the lubricating cup, be provided with an iron core spring 3 between moving iron core 2 and the lubricating cup cap 6, the lubricating cup outside of a relative end with the lubricating cup cap is provided with a pole shoe 9, pole shoe 9 bottoms are provided with a fixed mount 10, described lubricating cup 14 is fixed on the fixed mount 10, and the armature 7 that also is rotationally connected on the fixed mount 10, described armature 7 is arranged side by side with lubricating cup 14, is wound with solenoid 4 on the lubricating cup outer wall between fixed mount 10 and the lubricating cup cap, the outside, upper end of described armature is provided with a back-moving spring 1, and the other end of described back-moving spring 1 is provided with a set screw 8.
As shown in Figures 2 and 3, the operation principle of circuit breaker: under the situation of external circuits short circuit or overload, cross electric coil and produce electromagnetic force.Moving iron core is by the direction motion of lubricating cup bottom beginning to the lubricating cup cap under doing of electromagnetic force used.To overcome the resistance of silicone oil and iron core spring in the moving iron core moving process.When all moving in the coil, after magnetizing fully, attract armature to move to the lubricating cup cap etc. moving iron core.Discharge the dropout part and make the circuit breaker dynamic/static contact separately, open circuit.Electromagnetic force disappears, and pushes back the origin-location making of following moving iron core of lubricating cup spring.Under the effect of back-moving spring, armature is resetted.(set screw 8 can be regulated the compression degree of back-moving spring, thereby regulates the stressed relation of circuit breaker.After the circuit breaker handle closure, the conducting of dynamic/static contact pick-up current.Under the situation of current overload or short circuit, armature and the adhesive of lubricating cup cap discharge tripping.By mechanism circuit breaker is disconnected.
Claims (1)
1. the trip gear of a circuit breaker operation mechanism, it is characterized by: comprise a lubricating cup, described lubricating cup mouth place is fixed with the lubricating cup cap, be full of silicone oil in the lubricating cup, be provided with a moving iron core in the lubricating cup, be provided with an iron core spring between moving iron core and the lubricating cup cap, the lubricating cup outside of a relative end with the lubricating cup cap is provided with a pole shoe, the pole shoe bottom is provided with a fixed mount, and described lubricating cup is fixed on the fixed mount, and the armature that also is rotationally connected on the fixed mount, described armature and lubricating cup are arranged side by side, be wound with solenoid on the lubricating cup outer wall between fixed mount and the lubricating cup cap, the outside, upper end of described armature is provided with a back-moving spring, and the other end of described back-moving spring is provided with a set screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202310103U CN201820722U (en) | 2010-06-21 | 2010-06-21 | Tripping device of operating mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202310103U CN201820722U (en) | 2010-06-21 | 2010-06-21 | Tripping device of operating mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820722U true CN201820722U (en) | 2011-05-04 |
Family
ID=43918668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202310103U Expired - Fee Related CN201820722U (en) | 2010-06-21 | 2010-06-21 | Tripping device of operating mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128879A (en) * | 2016-08-19 | 2016-11-16 | 温州市新蓝天电器有限公司 | A kind of lubricating cup yoke and the chopper of armature one |
-
2010
- 2010-06-21 CN CN2010202310103U patent/CN201820722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128879A (en) * | 2016-08-19 | 2016-11-16 | 温州市新蓝天电器有限公司 | A kind of lubricating cup yoke and the chopper of armature one |
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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: 20110504 Termination date: 20120621 |