CN203733724U - Miniature circuit breaker with electrical control logic circuit - Google Patents
Miniature circuit breaker with electrical control logic circuit Download PDFInfo
- Publication number
- CN203733724U CN203733724U CN201420068862.3U CN201420068862U CN203733724U CN 203733724 U CN203733724 U CN 203733724U CN 201420068862 U CN201420068862 U CN 201420068862U CN 203733724 U CN203733724 U CN 203733724U
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- circuit
- circuit breaker
- ratchet
- miniature
- switch
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Abstract
The utility model discloses a miniature circuit breaker with an electrical control logic circuit. The miniature circuit breaker comprises a miniature circuit breaker shell; the miniature circuit breaker shell is provided with a release and an operation mechanism; the miniature circuit breaker has an electrical control logic circuit; the electrical control logic circuit comprises a function conversion circuit; the enabled input end of the function conversion circuit can be connected with L or N electric potential; the signal input end of the function conversion circuit is connected with a status signal processing circuit; the status signal processing circuit and a start-stop position lock parameter circuit are parallelly connected onto a load end; the enabled output end of the function conversion circuit is respectively connected with an enabled signal processing circuit and a switching on logic enabled sequence judgment control circuit; and the enabled signals can flexibly control the circuit breaker to be automatically conducted (switching on) and cut off (switching off). The utility model mainly aims at providing a miniature circuit breaker which has the advantages of manual switching is not needed, manual and automatic switching on demands can be automatically adjusted, the structure is simple, the operation is convenient, and safety coefficients are high.
Description
Technical field
The utility model belongs to technical field of electric appliances, is specifically related to a kind of miniature circuit breaker with automatically controlled logical circuit.
Background technology
Circuit breaker: can connection, the electric current under carrying and disjunction normal circuit condition, also can under the improper circuit condition of regulation, connect or carry during combined failure certain hour and or a kind of mechanical switch electrical equipment of breaking current.The effect of circuit breaker is that industry is known, under normal condition, guarantees that electric loop is the unimpeded of circuit; When loop, break down when producing short circuit current or causing overcurrent by overload, make electrical equipment load realize separated with supply network.Circuit breaker generally includes dynamic and static contact group for this reason.Miniature circuit breaker utilizes magnetictrip and electrical current heat element to realize short-circuit protection and overcurrent protection; when the short circuit current passing through in coil is greater than the current value of setting; the moving iron core action of magnetictrip; promote to hit bar and clash into operating mechanism; make operating mechanism release, drive moving contact separated with quiet contact.
Miniature circuit breaker, is called for short MCB (Micro Circuit Breaker), is most popular a kind of terminal protection electrical equipment during architectural electricity terminal power distribution equipment draws.For protections such as the short circuit of single-phase, the three-phase below 125A, overload, overvoltages, comprise one pole 1P, four kinds of two utmost point 2P, three utmost point 3P, four utmost point 4P etc.
At present, miniature circuit breaker on the market cannot be realized does not need manual switchover, just can automatically adapt to manually and the requirement of automatic closing.
Summary of the invention
The utility model is in order to overcome deficiency of the prior art, and a kind of manual switchover that do not need is provided, and automatically adapts to the requirement of closing by hand and automatic closing, simple in structure, easy to operate, the miniature circuit breaker with automatically controlled logical circuit that coefficient of safety is high.
To achieve these goals, the utility model is by the following technical solutions:
A kind of miniature circuit breaker with automatically controlled logical circuit, described miniature circuit breaker comprises miniature circuit breaker housing, the release that miniature circuit breaker housing is provided with, operating mechanism, it is characterized in that: described miniature circuit breaker has automatically controlled logical circuit, described automatically controlled logical circuit comprises function conversion circuit, the input that enables of described function conversion circuit can be accessed by L or N current potential, the signal input part of described function conversion circuit is connected with status signal treatment circuit, described status signal treatment circuit and start and stop position locking parametric circuit access load side, described function conversion circuit enable output respectively with enable signal treatment circuit, combined floodgate logic-enabled order judgement control circuit is connected, when enabling to be false, enable signal treatment circuit transmits the electric signal of telecommunication to dropout executive circuit, described dropout executive circuit drives operating mechanism and release to throw off, when enabling to set up, described function conversion circuit can be transferred to enable signal combined floodgate logic-enabled order judgement control circuit, described combined floodgate logic-enabled order judges that the signal that control circuit comes in conjunction with the transmission of start and stop position locking parametric circuit judges last time, whether tripping operation was to cause owing to enabling to be false, if last time, tripping operation caused owing to enabling to be false, described closing locking decision logic circuit will be to locking release circuit Propagation solution lock signal, described locking release circuit is to combined floodgate executive circuit transmission executive signal, described combined floodgate executive circuit drive motors is realized automatic closing, if last time, tripping operation did not cause owing to enabling to be false, described closing locking decision logic circuit can be to locking release circuit Propagation solution lock signal, automatic closing just cannot be realized.Wherein, when enabling to be false, at main electrical circuit, have under electric condition, this miniature circuit breaker can cut off (tripping operation) main electrical circuit automatically.When enabling to set up, at main electrical circuit, have under electric condition, this miniature circuit breaker can be connected (combined floodgate) main electrical circuit automatically.But prerequisite is: the last action of cutting off (tripping operation) main electrical circuit occurs by enabling to be false, otherwise does not carry out the action of the main electrical circuit of automatic connection (combined floodgate).Cut-out (tripping operation) action (as: short circuit, overcurrent or leakage current, under voltage, overvoltage etc.) being occurred by this miniature circuit breaker defencive function; because closing locking decision logic circuit can be to locking release circuit Propagation solution lock signal, the automatically controlled logical design refusal of this miniature circuit breaker carries out connection (combined floodgate) automatically thereby function can guarantee this miniature circuit breaker security performance in use.After closing by hand success, automatically connect (combined floodgate) functional rehabilitation.This miniature circuit breaker is controlled flexibly to open circuit by enable signal and is automatically connected (combined floodgate) and cut off (tripping operation) action, does not affect again the cut-out (tripping operation) that the own defencive function of manual drawing operation and circuit breaker occurs simultaneously.The automatically controlled logic of this miniature circuit breaker possesses while transferring incoming call to when main electrical circuit power-off or by power-off, and main electrical circuit actuating mechanism state remains unchanged.The state that the automatically controlled logical design of this miniature circuit breaker possesses main electrical circuit cut-out (tripping operation) returns to function.Can judge the correctness of controlling the instruction execution that disconnects main electrical circuit
As preferably, described operating mechanism and switch turn core interlock, described switch turns core and is provided with ratchet, and described ratchet coordinates with gear wheel, and the rear surface of described gear wheel is provided with the gear wheel ratchet that can coordinate with ratchet, between described gear wheel and ratchet, be provided with iron plate, described gear can mesh with pinion, and described pinion is socketed on the output shaft of motor, and described switch turns core and is provided with handle, described handle turns core by rotating shaft and switch and is connected, and described rotating shaft can turn core along switch and move axially.Wherein, the rear surface of gear wheel is provided with the gear wheel ratchet that can coordinate with ratchet, thereby gear wheel can drive switch to turn core, rotates.Between gear wheel and ratchet, be provided with iron plate, when needs are realized closing by hand, by ratchet, coordinate with iron plate, gear wheel and ratchet are departed from, when pulling handle, switch turns core and does not just link together with gear wheel, thereby has reduced the resistance in the time of closing by hand, has also improved the coefficient of safety of circuit breaker simultaneously.Handle turns core by rotating shaft and switch and is connected, and rotating shaft can turn core along switch and move axially, and in the time of needs closing by hand, just can ratchet be coordinated with iron plate by moving handle, thereby gear wheel and ratchet are departed from.
As preferably, described iron plate is provided with semicircle window, described ratchet with can coordinate at described semicircular window by gear wheel.Wherein, semicircular window forms a spacing window, just cannot coordinate with gear wheel, thereby make when realizing closing by hand resistance little when ratchet departs from semicircle window, and coefficient of safety is high.When needs carry combined floodgate, make ratchet and can coordinate at semicircular window by gear wheel, make gear wheel drive switch to turn core rotation and realize automatic closing.
As preferably, described semicircular window lower limb is provided with inclined-plane, and described inclined-plane can coordinate with ratchet, and the bottom of described iron plate is provided with detent.Wherein, to be provided with detent be in order to make to strengthen the coefficient of stability of iron plate in the bottom of iron plate.Inclined-plane is set, and is in order to make ratchet can depart from semicircle window.
As preferably, the ratchet ratchet arranging on described ratchet becomes sector structure.Wherein, ratchet ratchet becomes sector structure to coordinate with inclined-plane, realizes the switching inside and outside semicircle window.
As preferably, described pinion is provided with a push-on switch, and described push-on switch opens or closes and can make pinion and gear wheel engagement or separated.Wherein, recommendation switch being set, is in order to improve coefficient of safety, when realizing closing by hand, can promote push-on switch pinion and gear wheel are departed from.When realizing automatic closing, promote push-on switch and make pinion and gear wheel engagement, realize pinion and drive gear wheel interlock.
As preferably, described handle front end is provided with the first groove, and described the first groove can coordinate with the first convex body that switch turns on core.Wherein, the first groove can coordinate with the first convex body that switch turns on core, can in moving handle, well turn core with switch and coordinate, and makes switch turn core and handle interlock, meanwhile, can promote again ratchet and coordinate the disengaging that realizes ratchet and gear wheel with iron plate.
As preferably, in the middle part of described handle, be provided with the 3rd groove, described the 3rd groove can coordinate with the spacing catch that switch turns on core.
Therefore, the utlity model has following beneficial effect: simple in structure, easy to operate, coefficient of safety is high, do not need manual switchover, automatically adapt to the requirement of closing by hand and automatic closing, by enable signal, control flexibly to open circuit and automatically connect (combined floodgate) and cut off (tripping operation) action, do not affect again the cut-out (tripping operation) that the own defencive function of manual drawing operation and circuit breaker occurs simultaneously, cut-out (tripping operation) action being occurred by this miniature circuit breaker defencive function, the automatically controlled logical design refusal of this miniature circuit breaker is carried out connection (combined floodgate) function automatically and has greatly been improved security performance in use.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model miniature circuit breaker;
Fig. 2 is the structural representation of the utility model iron plate;
Fig. 3 is the structural representation that the utility model gear wheel coordinates with ratchet;
Fig. 4 is the utility model gear wheel structural representation;
Fig. 5 is the stereogram of the utility model miniature circuit breaker;
Fig. 6 is the end view of the utility model miniature circuit breaker;
Fig. 7 is that the utility model handle turns with switch the structural representation that core coordinates;
Fig. 8 is the logic diagram of the automatically controlled logical circuit of the utility model;
In figure: miniature circuit breaker housing 1, gear wheel 2, pinion 3, push-on switch 31, release 4, operating mechanism 5, iron plate 6, semicircle window 61, inclined-plane 62, detent 63, handle 7, rotating shaft 71, the first groove 72, the 3rd groove 73, ratchet 8, switch turn core 9, the first convex body 91.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment 1: as Fig. 1, shown in Fig. 3, a kind of miniature circuit breaker with automatically controlled logical circuit, comprise miniature circuit breaker housing 1, the release 4 that miniature circuit breaker housing 1 is provided with, operating mechanism 5, operating mechanism 5 turns core 9 interlocks with switch, switch turns core 9 and is provided with ratchet 8, ratchet 8 coordinates with gear wheel 2, the rear surface of gear wheel 2 is provided with the gear wheel ratchet that can coordinate with ratchet 8, between gear wheel 2 and ratchet 8, be provided with iron plate 6, gear can mesh with pinion 3, pinion 3 is socketed on the output shaft of motor, switch turns core 9 and is provided with handle 7, handle 7 turns core 9 by rotating shaft 71 and switch and is connected, rotating shaft 71 can turn core 9 along switch and move axially.
As shown in Figure 3, Figure 4, wherein, the rear surface of gear wheel 2 is provided with the gear wheel ratchet that can coordinate with ratchet 8, thereby gear wheel 2 can drive switch to turn core 9, rotates.Between gear wheel 2 and ratchet 8, be provided with iron plate 6, when needs are realized closing by hand, by ratchet 8, coordinate with iron plate 6, gear wheel 2 and ratchet 8 are departed from, when pulling handle 7, switch turns just not interlock together with gear wheel 2 of core 9, thereby has reduced the resistance in the time of closing by hand, has also improved the coefficient of safety of circuit breaker simultaneously.Handle 7 turns core 9 by rotating shaft 71 and switch and is connected, and rotating shaft 71 can turn core 9 along switch and move axially, and in the time of needs closing by hand, just can ratchet 8 be coordinated with iron plate 6 by moving handle 7, thereby gear wheel 2 and ratchet 8 are departed from.
As shown in Figure 2 and Figure 3, iron plate 6 is provided with semicircle window 61, and ratchet 8 can coordinate at semicircular window with energy gear wheel 2.Wherein, semicircular window forms a spacing window, just cannot coordinate with gear wheel 2, thereby make when realizing closing by hand resistance little when ratchet 8 departs from semicircle window 61, and coefficient of safety is high.When needs carry combined floodgate, make ratchet 8 and can coordinate at semicircular window by gear wheel 2, make gear wheel 2 drive switch to turn core 9 rotations and realize automatic closing.Semicircular window lower limb is provided with inclined-plane 62, and inclined-plane 62 can coordinate with ratchet 8, and the bottom of iron plate 6 is provided with detent 63.Wherein, to be provided with detent 63 be in order to make to strengthen the coefficient of stability of iron plate 6 in the bottom of iron plate 6.Inclined-plane 62 is set, and is in order to make ratchet 8 can depart from semicircle window 61.
As shown in Figure 6, miniature circuit breaker housing 1 forms bilayer or sandwich construction side by side along lateral thickness direction, and the thickness of every layer is one pole 1P, and every layer is respectively equipped with inlet wire port.Ratchet 8 ratchets that arrange on ratchet 8 become sector structure.Wherein, ratchet ratchet becomes sector structure to coordinate with inclined-plane 62, realizes in the inside and outside switching of semicircle window 61.
As shown in Figure 5, pinion 3 is provided with a push-on switch 31, and push-on switch 31 opens or closes and can make pinion 3 and gear wheel 2 engagements or separated.Wherein, recommendation switch being set, is in order to improve coefficient of safety, when realizing closing by hand, can promote push-on switch 31 pinion 3 and gear wheel 2 are departed from.When realizing automatic closing, promote push-on switch 31 and make pinion 3 and gear wheel 2 engagements, realize pinion 3 and drive gear wheel 2 interlocks.
As shown in Fig. 3, Fig. 7, handle 7 front ends are provided with the first groove 72, the first grooves 72 and can coordinate with the first convex body 91 that switch turns on core 9.Wherein, the first groove 72 can coordinate with the first convex body 91 that switch turns on core 9, can in moving handle 7, well turn core 9 with switch and coordinate, and makes switch turn core 9 and handle 7 interlocks, meanwhile, can promote again ratchet 8 and coordinate the disengaging that realizes ratchet 8 and gear wheel 2 with iron plate 6.Handle 7 rear ends are provided with the second groove, and the second groove can coordinate with the second convex body that switch turns on core 9.Wherein, the second groove being set can turn the second convex body on core 9 with switch and coordinate and can strengthen handle 7 and turn with switch the stability that core 9 coordinates.Handle 7 middle parts are provided with the 3rd groove 73, the three grooves 73 and can coordinate with the spacing catch that switch turns on core 9.Switch turns that on core 9, this has back-moving spring, and back-moving spring is located between rotating shaft 71 and ratchet 8.Wherein, back-moving spring is set, when closing by hand is transformed into automatic closing, driving handle 7, coordinates with iron plate 6 because back-moving spring just can promote ratchet 8, and making ratchet 8 move to semicircle window 61 can be ready for automatic closing.
As shown in Figure 8, miniature circuit breaker has automatically controlled logical circuit, automatically controlled logical circuit comprises function conversion circuit, the input that enables of function conversion circuit can be accessed by L or N current potential, the signal input part of function conversion circuit is connected with status signal treatment circuit, status signal treatment circuit and start and stop position locking parametric circuit access load side, function conversion circuit enable output respectively with enable signal treatment circuit, combined floodgate logic-enabled order judgement control circuit is connected, when enabling to be false, enable signal treatment circuit transmits the electric signal of telecommunication to dropout executive circuit, dropout executive circuit drives operating mechanism and release to throw off, when enabling to set up, function conversion circuit can be transferred to enable signal combined floodgate logic-enabled order judgement control circuit, combined floodgate logic-enabled order judges that the signal that control circuit comes in conjunction with the transmission of start and stop position locking parametric circuit judges last time, whether tripping operation was to cause owing to enabling to be false, if last time, tripping operation caused owing to enabling to be false, closing locking decision logic circuit will be to locking release circuit Propagation solution lock signal, locking release circuit is to combined floodgate executive circuit transmission executive signal, combined floodgate executive circuit drive motors is realized automatic closing, if last time, tripping operation did not cause owing to enabling to be false, closing locking decision logic circuit can be to locking release circuit Propagation solution lock signal, automatic closing just cannot be realized.Wherein, when enabling to be false, at main electrical circuit, have under electric condition, this miniature circuit breaker can cut off (tripping operation) main electrical circuit automatically.When enabling to set up, at main electrical circuit, have under electric condition, this miniature circuit breaker can be connected (combined floodgate) main electrical circuit automatically.But prerequisite is: the last action of cutting off (tripping operation) main electrical circuit occurs by enabling to be false, otherwise does not carry out the action of the main electrical circuit of automatic connection (combined floodgate).Cut-out (tripping operation) action (as: short circuit, overcurrent, leakage current) being occurred by this miniature circuit breaker defencive function; because closing locking decision logic circuit can be to locking release circuit Propagation solution lock signal, the automatically controlled logical design refusal of this miniature circuit breaker carries out connection (combined floodgate) automatically thereby function can guarantee this miniature circuit breaker security performance in use.After closing by hand success, automatically connect (combined floodgate) functional rehabilitation.This miniature circuit breaker is controlled flexibly to open circuit by enable signal and is automatically connected (combined floodgate) and cut off (tripping operation) action, does not affect again the cut-out (tripping operation) that the own defencive function of manual drawing operation and circuit breaker occurs simultaneously.The automatically controlled logic of this miniature circuit breaker possesses while transferring incoming call to when main electrical circuit power-off or by power-off, and main electrical circuit actuating mechanism state remains unchanged.The state that the automatically controlled logical design of this miniature circuit breaker possesses main electrical circuit cut-out (tripping operation) returns to function.Can judge the correctness of controlling the instruction execution that disconnects main electrical circuit.
In miniature circuit breaker automatic closing, by motor, drive pinion 3 above, pinion 3 and handle 7 gear wheel 2 engagements above, due to the principle gear wheel 2 of click and switch turn that core 9 takes turns cannot be separated, switch turns core 9 and is following the rotation of gear wheel 2 and rotating, the rotation that switch turns core 9 has also driven the combined floodgate motion of whole handle 7, thereby is with pneumatic operating mechanism 5 to realize automatic switching-in function.
In miniature circuit breaker closing by hand, handle 7 moves down, thereby extruding ratchet 8 makes ratchet 8 coordinate with iron plate 6 ramps 62, thereby makes ratchet 8 rotations to departing from semicircle window 61 positions, ratchet 8 cannot be coordinated with gear wheel 2.When pulling handle 7, handle 7 will drive switch to turn core 9 and rotate, thereby switch turns core band, pneumatic operating mechanism 5 is realized closing by hand.
Claims (8)
1. a miniature circuit breaker with automatically controlled logical circuit, described miniature circuit breaker comprises miniature circuit breaker housing, the release that miniature circuit breaker housing is provided with, operating mechanism, it is characterized in that: described miniature circuit breaker has automatically controlled logical circuit, described automatically controlled logical circuit comprises function conversion circuit, the input that enables of described function conversion circuit can be accessed by L or N current potential, the signal input part of described function conversion circuit is connected with status signal treatment circuit, described status signal treatment circuit and start and stop position locking parametric circuit access load side, described function conversion circuit enable output respectively with enable signal treatment circuit, combined floodgate logic-enabled order judgement control circuit is connected, when enabling to be false, enable signal treatment circuit transmits the electric signal of telecommunication to dropout executive circuit, described dropout executive circuit drives operating mechanism and release to throw off, when enabling to set up, described function conversion circuit can be transferred to enable signal combined floodgate logic-enabled order judgement control circuit, described combined floodgate logic-enabled order judges that the signal that control circuit comes in conjunction with the transmission of start and stop position locking parametric circuit judges last time, whether tripping operation was to cause owing to enabling to be false, if last time, tripping operation caused owing to enabling to be false, described closing locking decision logic circuit will be to locking release circuit Propagation solution lock signal, described locking release circuit is to combined floodgate executive circuit transmission executive signal, described combined floodgate executive circuit drive motors is realized automatic closing, if last time, tripping operation did not cause owing to enabling to be false, described closing locking decision logic circuit can be to locking release circuit Propagation solution lock signal, automatic closing just cannot be realized.
2. the miniature circuit breaker with automatically controlled logical circuit according to claim 1, it is characterized in that: described operating mechanism and switch turn core interlock, described switch turns core and is provided with ratchet, described ratchet coordinates with gear wheel, the rear surface of described gear wheel is provided with the gear wheel ratchet that can coordinate with ratchet, between described gear wheel and ratchet, be provided with iron plate, described gear can mesh with pinion, described pinion is socketed on the output shaft of motor, described switch turns core and is provided with handle, described handle turns core by rotating shaft and switch and is connected, described rotating shaft can turn core along switch and move axially.
3. the miniature circuit breaker with automatically controlled logical circuit according to claim 2, is characterized in that: described iron plate is provided with semicircle window, and described ratchet can coordinate at described semicircular window with energy gear wheel.
4. the miniature circuit breaker with automatically controlled logical circuit according to claim 3, is characterized in that: described semicircular window lower limb is provided with inclined-plane, and described inclined-plane can coordinate with ratchet, and the bottom of described iron plate is provided with detent.
5. according to the miniature circuit breaker with automatically controlled logical circuit described in claim 2 or 3 or 4, it is characterized in that: the ratchet ratchet arranging on described ratchet becomes sector structure.
6. according to the miniature circuit breaker with automatically controlled logical circuit described in claim 2 or 3 or 4, it is characterized in that: described pinion is provided with a push-on switch, described push-on switch opens or closes and can make pinion and gear wheel engagement or separated.
7. according to the miniature circuit breaker with automatically controlled logical circuit described in claim 2 or 3 or 4, it is characterized in that: described handle front end is provided with the first groove, described the first groove can coordinate with the first convex body that switch turns on core.
8. according to the miniature circuit breaker with automatically controlled logical circuit described in claim 2 or 3 or 4, it is characterized in that: described handle middle part is provided with the 3rd groove, and described the 3rd groove can coordinate with the spacing catch that switch turns on core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068862.3U CN203733724U (en) | 2014-02-18 | 2014-02-18 | Miniature circuit breaker with electrical control logic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068862.3U CN203733724U (en) | 2014-02-18 | 2014-02-18 | Miniature circuit breaker with electrical control logic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733724U true CN203733724U (en) | 2014-07-23 |
Family
ID=51203775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068862.3U Withdrawn - After Issue CN203733724U (en) | 2014-02-18 | 2014-02-18 | Miniature circuit breaker with electrical control logic circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811232A (en) * | 2014-02-18 | 2014-05-21 | 华威博奥电力设备有限公司 | Miniature circuit breaker provided with electric control logical circuit |
-
2014
- 2014-02-18 CN CN201420068862.3U patent/CN203733724U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811232A (en) * | 2014-02-18 | 2014-05-21 | 华威博奥电力设备有限公司 | Miniature circuit breaker provided with electric control logical circuit |
| CN103811232B (en) * | 2014-02-18 | 2015-09-16 | 华威博奥电力设备有限公司 | There is the miniature circuit breaker of automatically controlled logical circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20150916 |
|
| RGAV | Abandon patent right to avoid regrant |