CN201298512Y - A rotary electric appliance with a rapid breaking action mechanism - Google Patents
A rotary electric appliance with a rapid breaking action mechanism Download PDFInfo
- Publication number
- CN201298512Y CN201298512Y CNU2008202290615U CN200820229061U CN201298512Y CN 201298512 Y CN201298512 Y CN 201298512Y CN U2008202290615 U CNU2008202290615 U CN U2008202290615U CN 200820229061 U CN200820229061 U CN 200820229061U CN 201298512 Y CN201298512 Y CN 201298512Y
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- current excitation
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Abstract
The utility model relates to a rotary electric appliance with a rapid breaking action mechanism, which comprises a moving contact bridge, a moving contact, a fixed contact, a fixed contact bridge, a current excitation fixed iron core, a rotary moving iron core, a reaction spring, a computer control system, a voltage excitation coil, a main circuit current excitation coil, a voltage excitation fixed iron core, a voltage excitation coil control circuit, a current transformer, a current excitation control circuit, and a rotating shaft; when the electric appliance needs rapid breaking action, the computer control system controls the main circuit current to be led to the main circuit current excitation coil through the current transformer and the current excitation control circuit; the rotary moving iron core takes action under the function of electromagnetic suction; the iron core drives the moving contact bridge and the moving contact to rotate through the rotating shaft; the moving contact opens rapidly and breaks the circuit; the rapid breaking of the moving contact ensures the high breaking performance, high electric life and reliable operation of the electric appliance.
Description
Technical field
The utility model relates to the low voltage electrical apparatus technology field, particularly a kind of rotational electrical apparatus with rapid disjunction motion mechanism.
Background technology
Slow wave etc. declare utility model patent " the fault current quick-release mechanism of circuit breaker " (CN2785124Y) introduced a kind of fault current quick-release mechanism of circuit breaker, comprise tripping, snap close, draw bar, also comprise: a fixed core is equipped with the below of draw bar; One moving unshakable in one's determination, and the lower end that is fixedly connected on draw bar is relative with fixed core; A conductive plate, be positioned at fixed core near.When big fault current passed through conductive plate, near fixed core produced magnetic force, attracted moving iron core to move downward, and the draw bar that links to each other with moving iron core is threaded off operating mechanism rapidly, reaches the purpose of quick disjunction.Except this patent, the thermo magnetic trip release mechanism of present circuit breaker etc. adopts similar scheme.But these all are the forms that adopts mechanical trip mechanism and mechanical operating mechanism, and all can't realize control.In the epoch of intelligent electrical apparatus research, these all can't adapt to the requirement of production development, and its performance index can't realize leap in other words.These schemes can only be applied to normal circuit breaker, can't be applied to intelligent breaker, more can't be applied to intelligent integrated device.
Summary of the invention
The purpose of this utility model is that a kind of rotational electrical apparatus with rapid disjunction motion mechanism will be provided, this device is under computer control system control, it is excitatory much bigger than general voltage that the main circuit current excitation coil is fed, the electric current that rise-time constant is much smaller, rotary type moving electromagnetic attraction and the electrical equipment reaction spring excitatory unshakable in one's determination in magnetic field, the touch spring acting in conjunction is action down, unshakable in one's determination by rotating shaft drive movable contact bridge and moving contact rotation, moving contact is opened fast, guaranteed moving contact branch deenergizing fast, owing to do not adopt mechanical trip mechanism and mechanical operating mechanism, thereby increase substantially the breaking capacity of electrical equipment, electric life is also realized Based Intelligent Control.In a word, this mechanism is under computer control system control, switching current excitation main circuit current excitation coil by main circuit current (normal running current, generic failure electric current or short circuit current), directly drive the quick disjunction of moving contact by moving iron core by rotating shaft, thereby improve breaking capacity, the electric life of electrical equipment and realize Based Intelligent Control.
The purpose of this utility model is to realize like this, it comprises movable contact bridge (A), moving contact (B), fixed contact (C), stationary contact bridge (D), current excitation fixed core (E), rotary type moving (G) unshakable in one's determination, reaction spring (H), computer control system (J), voltage magnetizing coil (K), main circuit current excitation coil (N), the excitatory fixed core of voltage (V), voltage magnetizing coil control circuit (X), current transformer (P), current excitation control circuit (Z), rotating shaft (L), it is characterized in that: rotary type moving (G) unshakable in one's determination drives movable contact bridge (A) by rotating shaft (L) and rotates with moving contact (B), current excitation fixed core (E) is separately fixed on the appliance base with the excitatory fixed core of voltage (V), supply voltage (U) is received voltage magnetizing coil (K) by voltage magnetizing coil control circuit (X), the control end of the voltage control output of computer control system (J) and voltage magnetizing coil control circuit (X) joins, current transformer (P) is enclosed within on the stationary contact bridge (D), current transformer (P) output is connected with main circuit current excitation coil (N) by current excitation control circuit (Z), and the Current Control output of the control input end of current excitation control circuit (Z) and computer control system (J) joins.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings
Fig. 1 is an embodiment organigram of the present utility model.
Embodiment
As shown in Figure 1, a kind of rotational electrical apparatus of the present utility model with rapid disjunction motion mechanism, comprise movable contact bridge (A), moving contact (B), fixed contact (C), stationary contact bridge (D), current excitation fixed core (E), rotary type moving (G) unshakable in one's determination, reaction spring (H), computer control system (J), voltage magnetizing coil (K), main circuit current excitation coil (N), the excitatory fixed core of voltage (V), voltage magnetizing coil control circuit (X), current transformer (P), current excitation control circuit (Z), rotating shaft (L), it is characterized in that: rotary type moving (G) unshakable in one's determination drives movable contact bridge (A) by rotating shaft (L) and rotates with moving contact (B), current excitation fixed core (E) is separately fixed on the appliance base with the excitatory fixed core of voltage (V), supply voltage (U) is received voltage magnetizing coil (K) by voltage magnetizing coil control circuit (X), the control end of the voltage control output of computer control system (J) and voltage magnetizing coil control circuit (X) joins, current transformer (P) is enclosed within on the stationary contact bridge (D), current transformer (P) output is connected with main circuit current excitation coil (N) by current excitation control circuit (Z), and the Current Control output of the control input end of current excitation control circuit (Z) and computer control system (J) joins.
When electrical equipment normally moves, computer control system J is by voltage magnetizing coil control circuit X control voltage magnetizing coil K energising, the moving G unshakable in one's determination of rotary type is in attracting state with the excitatory fixed core V of voltage under the action of a magnetic field, moving contact B is in fixed contact C and contacts "on" position, when detecting short trouble, computer control system J takes place, computer control system J is by voltage magnetizing coil control circuit X control voltage magnetizing coil K outage, simultaneous computer control system J is by current excitation control circuit Z Control current instrument transformer, short circuit current switches on main circuit current excitation coil N by current transformer P immediately, because the electromagnetic time constant of main circuit current excitation coil N is little and under the effect of current source, the moving G unshakable in one's determination of rotary type is under electromagnetic attraction and reaction spring H and touch spring acting in conjunction, directly drive movable contact bridge A and moving contact B rapid movement by rotating shaft L, the moving contact B fixed contact C that speeds away, because the moving G unshakable in one's determination of rotary type is directly by rotating shaft L drive moving contact B rather than by tripping mechanism and mechanical disjunction mechanism, make the quick disjunction of electrical contact, thereby improve the breaking capacity of electrical equipment and realize Based Intelligent Control.
When computer control system J detect require the normal running current of disjunction main circuit or because of the overload, the phase failure, three-phase imbalance, overvoltage, faults such as under voltage (removing short trouble) are when requiring the disjunction main circuit, computer control system J is by voltage magnetizing coil control circuit X control voltage magnetizing coil K outage, simultaneous computer control system J is by current excitation control circuit Z Control current instrument transformer, main circuit current switches on main circuit current excitation coil N by current transformer P immediately, because the electromagnetic time constant of main circuit current excitation coil N is little and under the effect of current source, the moving G unshakable in one's determination of rotary type is under electromagnetic attraction and reaction spring H and touch spring acting in conjunction, directly drive movable contact bridge A and moving contact B rapid movement by rotating shaft L, the moving contact B fixed contact C that speeds away, because the moving G unshakable in one's determination of rotary type is directly by rotating shaft L drive moving contact B rather than by tripping mechanism and mechanical disjunction mechanism, make the quick disjunction of electrical contact, thereby improve the electric life of electrical equipment and realize Based Intelligent Control.
Claims (1)
1, a kind of rotational electrical apparatus with rapid disjunction motion mechanism, comprise movable contact bridge (A), moving contact (B), fixed contact (C), stationary contact bridge (D), current excitation fixed core (E), rotary type moving (G) unshakable in one's determination, reaction spring (H), computer control system (J), voltage magnetizing coil (K), main circuit current excitation coil (N), the excitatory fixed core of voltage (V), voltage magnetizing coil control circuit (X), current transformer (P), current excitation control circuit (Z), rotating shaft (L), it is characterized in that: rotary type moving (G) unshakable in one's determination drives movable contact bridge (A) by rotating shaft (L) and rotates with moving contact (B), current excitation fixed core (E) is separately fixed on the appliance base with the excitatory fixed core of voltage (V), supply voltage (U) is received voltage magnetizing coil (K) by voltage magnetizing coil control circuit (X), the control end of the voltage control output of computer control system (J) and voltage magnetizing coil control circuit (X) joins, current transformer (P) is enclosed within on the stationary contact bridge (D), current transformer (P) output is connected with main circuit current excitation coil (N) by current excitation control circuit (Z), and the Current Control output of the control input end of current excitation control circuit (Z) and computer control system (J) joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202290615U CN201298512Y (en) | 2008-11-25 | 2008-11-25 | A rotary electric appliance with a rapid breaking action mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202290615U CN201298512Y (en) | 2008-11-25 | 2008-11-25 | A rotary electric appliance with a rapid breaking action mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298512Y true CN201298512Y (en) | 2009-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202290615U Expired - Fee Related CN201298512Y (en) | 2008-11-25 | 2008-11-25 | A rotary electric appliance with a rapid breaking action mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298512Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380424A (en) * | 2012-06-12 | 2015-02-25 | 富士通株式会社 | Current sensor |
| CN111986935A (en) * | 2020-08-21 | 2020-11-24 | 国网山东省电力公司昌邑市供电公司 | On-off device with self-locking function and on-off method |
-
2008
- 2008-11-25 CN CNU2008202290615U patent/CN201298512Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380424A (en) * | 2012-06-12 | 2015-02-25 | 富士通株式会社 | Current sensor |
| US9852867B2 (en) | 2012-06-12 | 2017-12-26 | Fujitsu Limited | Current sensor |
| CN111986935A (en) * | 2020-08-21 | 2020-11-24 | 国网山东省电力公司昌邑市供电公司 | On-off device with self-locking function and on-off method |
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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: 20090826 Termination date: 20111125 |