CN201213116Y - Circuit breaker having short circuit self-locking function - Google Patents
Circuit breaker having short circuit self-locking function Download PDFInfo
- Publication number
- CN201213116Y CN201213116Y CNU200820068315XU CN200820068315U CN201213116Y CN 201213116 Y CN201213116 Y CN 201213116Y CN U200820068315X U CNU200820068315X U CN U200820068315XU CN 200820068315 U CN200820068315 U CN 200820068315U CN 201213116 Y CN201213116 Y CN 201213116Y
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- self
- electromagnet
- circuit
- swingle
- 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 - Lifetime
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model relates to a circuit breaker with the function of self-locking upon short circuit, which is characterized in that the circuit breaker is provided with a self-locking mechanism upon short circuit. With a short circuit self-locking mechanism adopted, the circuit breaker fails to be directly closed to remind an operator of a short circuit accident when a short circuit occurs and the circuit breaker is broken, and the circuit breaker can not be reclosed until the cause is detected and the problem is solved. While maintaining the functions of a prior circuit breaker, the utility model is additionally provided with a function of self-locking upon short circuit, thereby overcoming the defects existing in the prior art that the circuit breaker is burnt or a fire is caused by reclosing the circuit breaker when a short circuit occurs.
Description
Technical field
The utility model belongs to a kind of low-voltage electrical apparatus, is a kind of circuit breaker with short circuit self-locking function specifically.
Background technology
Mainly be to constitute (Fig. 1) at the circuit breaker (being commonly called as air switch) that uses at present by shell, operating grip, self-locking gangbar, dropout linkage, movement arm and operating point (contact), its course of work is: the manipulation operations handle makes the self-locking gangbar drive the movement arm motion, the contact is linked to each other with the sheet metal of output finish the switch closure process, the gangbar of self-locking simultaneously cooperates with the dropout linkage finishes closed self-locking (Fig. 2).For circuit is protected, in existing circuit breaker, also be provided with overcurrent action Agency And sheet metal protection mechanism, its course of work is: when the electric current that flows through circuit breaker surpasses the current ratings certain value, the lower end that overcurrent coil in the overcurrent actuating mechanism makes the actuating strut action of overcurrent actuating mechanism push the dropout linkage is rotated the dropout linkage, the self-locking gangbar breaks away from the dropout linkage and finishes the circuit breaker disconnection, reaches the purpose of protection; The course of work of bimetal leaf protection mechanism is: when the electric current that flows through circuit breaker surpasses the current ratings certain value; make bi-metal plate deformed and touch the rotation of dropout linkage; the self-locking gangbar breaks away from the dropout linkage and finishes the circuit breaker disconnection, reaches the purpose of protection.But; after circuit breaker disconnects; the actuating strut of its overcurrent actuating mechanism or bimetallic sector-meeting recover reset condition; when if load is short-circuited; though above-mentioned circuit breaker can be finished overcurrent protection, still exist need not to find out circuit breaker disconnect cause (because operating personnel do not know the overcurrent protection short circuit) close circuit breaker once more, to such an extent as to burn circuit breaker or cause the defective of fire; this class accident of picture has repeatedly seen medium.
Summary of the invention
The purpose of this utility model provides a kind of when circuit is short-circuited, after circuit breaker disconnects, must carry out reset operation (operator is short circuit the to remind) circuit breaker with short circuit self-locking function of close circuit breaker again, to overcome the defective of burning circuit breaker in the prior art or causing fire.
To achieve these goals, characteristics of the present utility model are: be provided with short-circuit self-locking mechanism in circuit breaker.
Above-mentioned short-circuit self-locking mechanism comprises self-locking mechanism and resetting device, and its self-locking mechanism is the mechanism that control dropout linkage keeps the overcurrent protection state, and its resetting device is to make the dropout linkage recover the mechanism of reset condition.
Because the utility model is provided with short-circuit self-locking mechanism in circuit breaker, make the utility model after the circuit breaker that is short-circuited disconnects phenomenon, direct close circuit breaker, reminding operator's accident that is short-circuited, close circuit breaker again after should ascertaining the reason and deal with problems.The utility model has increased short circuit self-locking function keeping under the situation of original circuit breaker all functions, thus overcome in the prior art because of after the short circuit again close circuit breaker cause the defective of burning circuit breaker or causing fire.
Description of drawings
Fig. 1 is present circuit breaker off-state structural representation.
Fig. 2 is present breaker closing status architecture schematic diagram.
Fig. 3 is the utility model embodiment 1 closure state structural representation.
Fig. 4 is the utility model embodiment 1 self-locking state structural representation.
Fig. 5 is the utility model embodiment 2 closure state structural representations.
Fig. 6 is the utility model embodiment 2 self-locking state structural representations.
Fig. 7 is the utility model embodiment 3 closure state structural representations.
Fig. 8 is the utility model embodiment 3 self-locking state structural representations.
Fig. 9 is the utility model embodiment 4 closure state structural representations.
Figure 10 is the utility model embodiment 4 self-locking state structural representations.
Figure 11 is the utility model embodiment 5 closure state structural representations.
Figure 12 is the utility model embodiment 5 self-locking state structural representations.
Figure 13 is the utility model embodiment 6 closure state structural representations.
Figure 14 is the utility model embodiment 6 self-locking state structural representations.
Figure 15 is the utility model embodiment 7 closure state structural representations.
Figure 16 is the utility model embodiment 7 self-locking state structural representations.
Figure 17 is the utility model embodiment 8 closure state structural representations.
Figure 18 is the utility model embodiment 8 self-locking state structural representations.
Figure 19 is the utility model embodiment 9 closure state structural representations.
Figure 20 is the utility model embodiment 9 self-locking state structural representations.
Figure 21 is the utility model tongue tube control control circuit for electromagnet schematic diagram.
Figure 22 is the utility model transducer control control circuit for electromagnet schematic diagram.
Figure 23 is that the utility model tongue tube is automatically controlled from the lock control circuit schematic diagram.
Figure 24 is the automatically controlled self-locking control circuit of a utility model transducer schematic diagram.
Among the figure: 1-shell, 2-operating grip, 3-self-locking gangbar, 4-dropout linkage, 5-overcurrent actuating mechanism, 6-bimetal leaf, 7-movement arm, 8-operating point, 9-button, 9.1-button projection, 9.2-button long slab, 10-swingle, 10.1-swingle groove, 11-lever, 12-magnetic metal, 13-electromagnet, 13.1-electromagnet movement arm, 14-tongue tube, 15-instrument transformer, 16-control circuit, 17-electromagnet stock, 18-button long slab, 18.1-button long slab salient point, 19-dropout interlock extension bar, 19.1-extension bar groove.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
The utility model is under the situation that keeps former breaker structure constant (all functions are constant); a short-circuit self-locking mechanism is set in circuit breaker in addition to be constituted; short-circuit self-locking mechanism comprises self-locking mechanism and resetting device; its self-locking mechanism is the mechanism that control dropout linkage keeps the overcurrent protection state, and its resetting device is to make the dropout linkage recover the mechanism of reset condition.
Embodiment 1:
Self-locking mechanism of the present utility model is provided with the lever of magnetic metal by a lower end and swingle that lower end is hinged on the case for circuit breaker constitutes, resetting device is made of a button and a cooperation of described swingle that is built-in with stage clip, wherein: lever is arranged in the circuit breaker by the bimetal leaf, the middle part of lever is hinged on the case for circuit breaker, the upper end of lever contacts on one side with the pin joint top of swingle, the another side on swingle top contacts with the upper end of dropout linkage in the circuit breaker, described swingle top is provided with a groove, the button lower end is provided with a projection, stage clip in the button is when oppression state, and the projection of its button lower end is shelved in the groove on swingle top (Fig. 3).
The operation principle of present embodiment is: when circuit breaker is short-circuited, owing to be much higher than the rated current of circuit breaker by the electric current in the bimetal leaf, produce high-intensity magnetic field around the bimetal leaf, the lever lower end that makes the other lower end of bimetal leaf be provided with magnetic metal is attracted by bimetal leaf (if just overcurrent produces, the magnetic field intensity that produces around the bimetal leaf can not attract the magnetic metal of lever lower end), lever is rotated, the upper end of lever promotes swingle and rotates, thereby promote the dropout linkage and rotate (circuit breaker being disconnected) with the overcurrent actuating mechanism, simultaneously, because the effect that swingle rotates, the projection of button lower end is broken away from the groove on swingle top, make the recovery of stage clip in the button, the projection of button lower end contacts (Fig. 4) on one side with moving on the button with swingle, after even circuit breaker disconnects, lever returns to original position, and swingle just can not recover, be to continue to make the dropout linkage to remain on trip status on the swingle can not recover, thereby make and both made the closed procedure handle, can not make breaker closing, and finish the short circuit self-locking.Recovery operation if desired only need press the button, and the projection of button lower end is shelved in the groove on swingle top, and swingle could recover, the gangbar of promptly threading off recovery, and just closed procedure handle once more makes breaker closing.
Embodiment 2:
Self-locking mechanism of the present utility model is arranged on the swingle that electromagnet in the case for circuit breaker, tongue tube and lower end be hinged in the case for circuit breaker by one and constitutes, resetting device is identical with embodiment 1, wherein: tongue tube is arranged on by the circuit breaker inside conductor, electromagnet is arranged on by the swingle, magnet spool is connected with the power supply of circuit breaker input with tongue tube series connection back, the movement arm of electromagnet contacts on one side with the pin joint top of swingle, other structures and embodiment 1 identical (Fig. 5).
The operation principle of present embodiment is: when circuit breaker is short-circuited, owing to be much higher than the rated current of circuit breaker by the electric current in the circuit breaker inside conductor, produce high-intensity magnetic field around the lead, make the other tongue tube adhesive of lead, magnet spool gets electric, and the movement arm action of electromagnet promotes swingle and rotates, thereby promote the dropout linkage and rotate (Fig. 6), other principles are identical with embodiment 1.
Embodiment 3:
Self-locking mechanism of the present utility model is arranged on the swingle that electromagnet in the case for circuit breaker, transducer and lower end be hinged in the case for circuit breaker by one and constitutes, resetting device is identical with embodiment 1, wherein: transducer passes the circuit breaker inside conductor, the output of transducer links to each other with control circuit, control circuit control electromagnet action (Figure 22), electromagnet is arranged on by the swingle, other structures and embodiment 2 identical (Fig. 7).
The operation principle of present embodiment is: when circuit breaker is short-circuited, owing to be much higher than the rated current of circuit breaker by the electric current in the circuit breaker inside conductor, the current output sensor signal is given control circuit, control circuit control magnet spool gets, the movement arm action of electromagnet, the promotion swingle rotates, and rotates (Fig. 8) thereby promote the dropout linkage, and other principles are identical with embodiment 1.
Embodiment 4:
Self-locking mechanism of the present utility model is made of an electromagnet and a tongue tube that is arranged in the case for circuit breaker, and the movement arm of electromagnet connects a stock that has chimb, and the end points of stock contacts with the upper end of dropout gangbar in the circuit breaker; Resetting device is cooperated with described stock by a button that is built-in with stage clip and constitutes, the inner of button connects a long slab that has dovetail groove, long slab is arranged between electromagnet and the dropout gangbar, dovetail groove in the long slab is a shallow slot near electromagnet side, near the dropout gangbar is deep trouth, stage clip in the button is when oppression state, the chimb of its stock is shelved in the shallow slot of long slab dovetail groove, tongue tube is arranged on circuit breaker inside conductor other (Fig. 9), and magnet spool is connected with the power supply of circuit breaker input with tongue tube series connection back.
The operation principle of present embodiment is: when circuit breaker is short-circuited, owing to be much higher than the rated current of circuit breaker by the electric current in the circuit breaker inside conductor, produce high-intensity magnetic field around the lead, make the other tongue tube adhesive of lead, magnet spool gets, the movement arm action of electromagnet, movement arm drives stock and promotes dropout linkage rotation (circuit breaker being disconnected with the overcurrent actuating mechanism), simultaneously, because the recovery of stage clip in the mobile and button of stock, make in the shallow slot of chimb by the long slab dovetail groove of stock and move in the deep trouth of long slab dovetail groove, after even circuit breaker disconnects, because the chimb of stock is blocked by the deep trouth of long slab dovetail groove, can not recover, can not recover even the dropout linkage remains on trip status, thus the feasible closed procedure handle that both made, can not make breaker closing, and finish short circuit self-locking (Figure 10).Recovery operation if desired, only need press the button, the movement arm of electromagnet recovers, make the deep trouth of the chimb disengaging long slab dovetail groove of the stock in the deep trouth that is stuck in the long slab dovetail groove, get back in the shallow slot of long slab dovetail groove, the gangbar of promptly threading off is recovered, and just closed procedure handle once more makes breaker closing.
Embodiment 5:
Self-locking mechanism of the present utility model is by an electromagnet that is arranged in the case for circuit breaker, transducer and control circuit constitute, wherein transducer passes the circuit breaker inside conductor, the output of transducer links to each other with control circuit, control circuit control electromagnet action (Figure 22), other structures and embodiment 4 identical (Figure 11).
The operation principle of present embodiment except that electromagnet by the control circuit control, other principles and embodiment 4 identical (Figure 12).
Embodiment 6:
Self-locking mechanism of the present utility model is arranged on by one that electromagnet, tongue tube and tongue tube in the case for circuit breaker is automatically controlled to be constituted from lock control circuit (Figure 23), electromagnet is connected from the lock control circuit line with automatically controlled with tongue tube, resetting device is made of a shift knob, tongue tube is arranged on by the circuit breaker inside conductor, wherein the movement arm of electromagnet contact with the upper end of dropout linkage in the circuit breaker (Figure 13).
The operation principle of present embodiment is: when circuit breaker is short-circuited, owing to be much higher than the rated current of circuit breaker by the electric current in the circuit breaker inside conductor, produce high-intensity magnetic field around the lead, make the other tongue tube adhesive of lead, tongue tube is automatically controlled from lock control circuit work, magnet spool gets, the movement arm action of electromagnet, movement arm promotes the dropout linkage and rotates (circuit breaker being disconnected with the overcurrent actuating mechanism), and remain on trip status and can not recover, thereby make both to have made the closed procedure handle, can not make breaker closing, and finish short circuit self-locking (Figure 14).Recovery operation if desired only need press the button, makes automatically controlledly to quit work from lock control circuit work, and the magnet spool outage, the movement arm of electromagnet recovers, and the gangbar of promptly threading off is recovered, and just closed procedure handle once more makes breaker closing.
Embodiment 7:
Self-locking mechanism of the present utility model is made of an automatically controlled self-locking control circuit of electromagnet, transducer and transducer (Figure 24) that is arranged in the case for circuit breaker, resetting device is made of a shift knob, transducer passes the circuit breaker inside conductor, the output of transducer is connected from lock control circuit with automatically controlled, wherein the movement arm of electromagnet contact with the upper end of dropout linkage in the circuit breaker (Figure 15).
From the circuit theory diagrams difference of lock control circuit, other principles are identical with embodiment 6 except that automatically controlled for the operation principle of present embodiment.
Embodiment 8:
The utility model can use equally to three-phase moulded case circuit breaker (air switch), self-locking mechanism is by an electromagnet that is arranged in the case for circuit breaker, the swingle that tongue tube and a lower end are hinged in the case for circuit breaker constitutes, the upper end of its swingle contacts with the upper end of dropout linkage in the circuit breaker, the upper end of dropout linkage is provided with an extension bar that has groove, resetting device is made of a button and a described extension bar cooperation that has groove that is built-in with stage clip, the button lower end is provided with a projection, stage clip in the button is when oppression state, the projection of its button lower end is shelved in the groove of extension bar, wherein: tongue tube is arranged on by the circuit breaker inside conductor, electromagnet is arranged on by the swingle, magnet spool and tongue tube series connection back is connected with the power supply that circuit breaker is imported, the movement arm of electromagnet contact with the pin joint top of swingle (Figure 17).
The operation principle of present embodiment is: when circuit breaker is short-circuited, owing to be much higher than the rated current of circuit breaker by the electric current in the circuit breaker inside conductor, produce high-intensity magnetic field around the lead, make the other tongue tube adhesive of lead, magnet spool gets, the movement arm action of electromagnet, the promotion swingle rotates, thereby promote the dropout linkage and rotate (circuit breaker being disconnected) with the overcurrent actuating mechanism, simultaneously, because the effect that the dropout linkage rotates, the projection of button lower end is broken away from the groove of extension bar, make the recovery of stage clip in the button, on one side the projection of button lower end contacts (Figure 18) with moving on the button with extension bar, after even circuit breaker disconnects, swingle returns to original position, and the dropout linkage remains on trip status and can not recover, thus the feasible closed procedure handle that both made, can not make breaker closing, and finish the short circuit self-locking.Recovery operation if desired only need press the button, and makes in the extension bar groove that the projection of button lower end is shelved on, and the dropout gangbar could be recovered, and just closed procedure handle once more makes breaker closing.
Embodiment 9:
The tongue tube of the utility model embodiment 6 is automatically controlled can be used to the three-phase moulded case circuit breaker (Figure 19) equally from lock control circuit, and its structure is identical, is the phase shape difference (Figure 20) of the dropout linkage controlled, and its principle is also identical.
As a same reason, the automatically controlled self-locking control circuit of the transducer of the utility model embodiment 7 can use to the three-phase moulded case circuit breaker equally.
The power circuit of the utility model tongue tube control control circuit for electromagnet (Figure 21) is made up of diode D1-D4, resistance R 1, R2, R3, capacitor C 1, integrated circuit (IC) 1, comparison circuit is made up of resistance R 4, R5, variable resistor W integrated circuit (IC) 2, short-circuit detecting circuit is made up of tongue tube NS, and controlling output circuit is made up of capacitor C 3, resistance R 6, triode Q, diode D5, electromagnet coil XQ.When circuit is short-circuited fault, around conductor, can produce powerful magnetic field, tongue tube NS is by magnetic field adhesive conducting, voltage is input to the in-phase input end of comparison circuit through tongue tube and the reference voltage of comparison circuit inverting input compares, the output high potential drives triode Q conducting, the electromagnet action promotes transmission mechanism and makes circuit breaker tripping, cuts off the electricity supply.
The power circuit of the utility model transducer control control circuit for electromagnet (Figure 22) is made up of diode D1-D4, resistance R 1, R2, R3, capacitor C 1, integrated circuit (IC) 1, comparison circuit is made up of resistance R 4, R5, variable resistor W integrated circuit (IC) 2, short-circuit detecting circuit is made up of instrument transformer TA, capacitor C 2 diode D7, and controlling output circuit is made up of capacitor C 3, resistance R 6, triode Q, diode D5, electromagnet coil XQ.Its principle is: when circuit is short-circuited fault, sensor sensing goes out voltage through the reference voltage comparison with the comparison circuit inverting input of the in-phase input end that is input to comparison circuit behind the diode rectification, the output high potential drives triode Q conducting, the electromagnet action promotes transmission mechanism and makes circuit breaker tripping, cuts off the electricity supply.
The automatically controlled power circuit from lock control circuit (Figure 23) of the utility model tongue tube is made up of diode D1-D4, resistance R 1, RB2, R3, capacitor C 1, integrated circuit (IC) 1, comparison circuit is made up of resistance R 4, R5, variable resistor W integrated circuit (IC) 2, short-circuit detecting circuit is made up of tongue tube NS, latching circuit is made up of diode D6, reset circuit is made up of sensitive switch REST, and controlling output circuit is made up of capacitor C 3, resistance R 6, triode Q, diode D5, electromagnet coil XQ.
When circuit is short-circuited fault, around conductor, can produce powerful magnetic field, tongue tube NS is by the adhesive conducting, voltage is input to the in-phase input end of comparison circuit through dry reed tube NS and the reference voltage of comparison circuit inverting input compares, the output high potential drives triode Q conducting, this high potential makes the circuit self-locking by the in-phase input end that diode D6 feeds back to comparator simultaneously, all the time be in high potential state, the electromagnet action promotes transmission mechanism threads off switch, cut off the electricity supply, have only by pressing the REST switch to make the output of comparator become earth potential, triode is failure to actuate by electromagnet, and circuit breaker could close a floodgate.
The power circuit of the automatically controlled self-locking control circuit of the utility model transducer (Figure 24) is made up of diode D1-D4, resistance R 1, RB2, R3, capacitor C 1, integrated circuit (IC) 1, comparison circuit is made up of resistance R 4, R5, variable resistor W integrated circuit (IC) 2, short-circuit detecting circuit is made up of transducer TA, capacitor C 2 diode D7, latching circuit is made up of diode D6, release circuit is made up of sensitive switch REST, and controlling output circuit is made up of capacitor C 3, resistance R 6, triode Q, diode D5, electromagnet coil XQ.Its principle is: when circuit is short-circuited fault, sensor sensing goes out voltage through the reference voltage comparison with the comparison circuit inverting input of the in-phase input end that is input to comparison circuit behind the diode rectification, the output high potential drives triode Q conducting, this high potential makes the circuit self-locking by the in-phase input end that diode D6 feeds back to comparator simultaneously, all the time be in high potential state, the electromagnet action promotes transmission mechanism threads off switch, cut off the electricity supply, having only by pressing the REST switch makes the output of comparator become electronegative potential, triode is failure to actuate by electromagnet, and circuit breaker could close a floodgate.
The utility model also can be set to conventional overcurrent by short circuit current, finishes the overcurrent self-locking, makes the utility model be transformed into a kind of circuit breaker with overcurrent self-locking function.
Claims (10)
1, a kind of circuit breaker with short circuit self-locking function is characterized in that: be provided with short-circuit self-locking mechanism in circuit breaker.
2, the circuit breaker with short circuit self-locking function as claimed in claim 1; it is characterized in that: short-circuit self-locking mechanism comprises self-locking mechanism and resetting device; its self-locking mechanism is the mechanism that control dropout linkage keeps the overcurrent protection state, and its resetting device is to make the dropout linkage recover the mechanism of reset condition.
3, circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is provided with the lever of magnetic metal by a lower end and swingle that lower end is hinged on the case for circuit breaker constitutes, resetting device is made of a button and a cooperation of described swingle that is built-in with stage clip, wherein: lever is arranged in the circuit breaker by the bimetal leaf, the middle part of lever is hinged on the case for circuit breaker, the upper end of lever contacts on one side with the pin joint top of swingle, the another side on swingle top contacts with the upper end of dropout linkage in the circuit breaker, described swingle top is provided with a groove, the button lower end is provided with a projection, stage clip in the button is when oppression state, and the projection of its button lower end is shelved in the groove on swingle top.
4, circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is by an electromagnet that is arranged in the case for circuit breaker, the swingle that tongue tube and a lower end are hinged in the case for circuit breaker constitutes, resetting device is made of a button and a cooperation of described swingle that is built-in with stage clip, wherein: tongue tube is arranged on by the circuit breaker inside conductor, electromagnet is arranged on by the swingle, magnet spool is connected with the power supply of circuit breaker input with tongue tube series connection back, the movement arm of electromagnet contacts on one side with the pin joint top of swingle, the another side on swingle top contacts with the upper end of dropout linkage in the circuit breaker, described swingle top is provided with a groove, the button lower end is provided with a projection, stage clip in the button is when oppression state, and the projection of its button lower end is shelved in the groove on swingle top.
5, circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is by an electromagnet that is arranged in the case for circuit breaker, the swingle that transducer and a lower end are hinged in the case for circuit breaker constitutes, resetting device is made of a button and a cooperation of described swingle that is built-in with stage clip, wherein: transducer passes the circuit breaker inside conductor, the output of transducer links to each other with control circuit, the action of control circuit control electromagnet, electromagnet is arranged on by the swingle, the movement arm of electromagnet contacts on one side with the pin joint top of swingle, the another side on swingle top contacts with the upper end of dropout linkage in the circuit breaker, described swingle top is provided with a groove, the button lower end is provided with a projection, stage clip in the button is when oppression state, and the projection of its button lower end is shelved in the groove on swingle top.
6, the circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is made of an electromagnet and a tongue tube that is arranged in the case for circuit breaker, the movement arm of electromagnet connects a stock that has chimb, and the end points of stock contacts with the upper end of dropout linkage in the circuit breaker; Resetting device is cooperated with described stock by a button that is built-in with stage clip and constitutes, the inner of button connects a long slab that has dovetail groove, long slab is arranged between electromagnet and the dropout linkage, dovetail groove in the long slab is a shallow slot near electromagnet side, near the dropout linkage is deep trouth, stage clip in the button is when oppression state, the chimb of its stock is shelved in the shallow slot of long slab dovetail groove, tongue tube is arranged on by the circuit breaker inside conductor, and magnet spool is connected with the power supply of relay input with tongue tube series connection back.
7, circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is by an electromagnet that is arranged in the case for circuit breaker, transducer and control circuit constitute, wherein transducer passes the circuit breaker inside conductor, the output of transducer links to each other with control circuit, the action of control circuit control electromagnet, resetting device is cooperated with described stock by a button that is built-in with stage clip and constitutes, the inner of button connects a long slab that has dovetail groove, long slab is arranged between electromagnet and the dropout linkage, dovetail groove in the long slab is a shallow slot near electromagnet side, near the dropout linkage is deep trouth, stage clip in the button is when oppression state, and the chimb of its stock is shelved in the shallow slot of long slab dovetail groove.
8, the circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is arranged on by one that electromagnet, tongue tube and tongue tube in the case for circuit breaker is automatically controlled to be constituted from lock control circuit, electromagnet is connected from the lock control circuit line with automatically controlled with tongue tube, resetting device is made of a shift knob, tongue tube is arranged on by the circuit breaker inside conductor, and wherein the movement arm of electromagnet contacts with the upper end of dropout linkage in the circuit breaker.
9, the circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is made of an automatically controlled self-locking control circuit of electromagnet, transducer and transducer that is arranged in the case for circuit breaker, resetting device is made of a shift knob, transducer passes the circuit breaker inside conductor, the output of transducer is connected from lock control circuit with automatically controlled, and wherein the movement arm of electromagnet contacts with the upper end of dropout linkage in the circuit breaker.
10, circuit breaker with short circuit self-locking function as claimed in claim 2, it is characterized in that: self-locking mechanism is by an electromagnet that is arranged in the case for circuit breaker, the swingle that tongue tube and a lower end are hinged in the case for circuit breaker constitutes, the upper end of its swingle contacts with the upper end of dropout linkage in the circuit breaker, the upper end of dropout linkage is provided with an extension bar that has groove, resetting device is made of a button and a described extension bar cooperation that has groove that is built-in with stage clip, the button lower end is provided with a projection, stage clip in the button is when oppression state, the projection of its button lower end is shelved in the groove of extension bar, wherein: tongue tube is arranged on by the circuit breaker inside conductor, electromagnet is arranged on by the swingle, magnet spool is connected with the power supply of circuit breaker input with tongue tube series connection back, and the movement arm of electromagnet contacts with the pin joint top of swingle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820068315XU CN201213116Y (en) | 2008-07-07 | 2008-07-07 | Circuit breaker having short circuit self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820068315XU CN201213116Y (en) | 2008-07-07 | 2008-07-07 | Circuit breaker having short circuit self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201213116Y true CN201213116Y (en) | 2009-03-25 |
Family
ID=40497294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820068315XU Expired - Lifetime CN201213116Y (en) | 2008-07-07 | 2008-07-07 | Circuit breaker having short circuit self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201213116Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840819A (en) * | 2010-05-19 | 2010-09-22 | 湖北盛佳电器设备有限公司 | Frame-type circuit breaker with mechanical short-circuit self-locking function |
| WO2011075931A1 (en) * | 2009-12-21 | 2011-06-30 | 湖北盛佳电器设备有限公司 | Mechanical high voltage breaker with function of short circuit self-locking |
| CN101620957B (en) * | 2008-07-04 | 2013-03-27 | 湖北盛佳电器设备有限公司 | Breaker with short circuit self-locking function |
-
2008
- 2008-07-07 CN CNU200820068315XU patent/CN201213116Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620957B (en) * | 2008-07-04 | 2013-03-27 | 湖北盛佳电器设备有限公司 | Breaker with short circuit self-locking function |
| WO2011075931A1 (en) * | 2009-12-21 | 2011-06-30 | 湖北盛佳电器设备有限公司 | Mechanical high voltage breaker with function of short circuit self-locking |
| CN101740272B (en) * | 2009-12-21 | 2012-12-19 | 湖北盛佳电器设备有限公司 | Mechanical high-voltage circuit breaker with short circuit self-locking function |
| CN101840819A (en) * | 2010-05-19 | 2010-09-22 | 湖北盛佳电器设备有限公司 | Frame-type circuit breaker with mechanical short-circuit self-locking function |
| CN101840819B (en) * | 2010-05-19 | 2013-01-23 | 湖北盛佳电器设备有限公司 | Frame-type circuit breaker with mechanical short-circuit self-locking function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5444336B2 (en) | Breaker with short self-locking function | |
| US6507255B1 (en) | Remotely controllable circuit breaker | |
| CN101620957B (en) | Breaker with short circuit self-locking function | |
| US6768402B2 (en) | Externally controllable circuit breaker | |
| CN201213116Y (en) | Circuit breaker having short circuit self-locking function | |
| CN101620956B (en) | Breaker with overcurrent self-locking function | |
| US6724284B2 (en) | Circuit breaker | |
| US6469600B1 (en) | Remote control circuit breaker with a by-pass lead | |
| CN101651071B (en) | Electric control breaker with short circuit self-locking function | |
| CN201262926Y (en) | Electric-controlled type circuit breaker with short circuit self-locking function | |
| CN101651068B (en) | Three-phase moulded case circuit breaker with short circuit self-locking function | |
| CN104252998B (en) | Tripping indicating device and chopper for chopper | |
| CN201262927Y (en) | Electromagnet type circuit breaker with short circuit self-locking function | |
| CA2338671C (en) | Remotely controllable circuit breaker | |
| CN201262925Y (en) | Mechanical circuit breaker with short circuit self-locking function | |
| CN101651069B (en) | Mechanical breaker with short circuit self-locking function | |
| CN201302962Y (en) | Three-phase molded case circuit breaker with short-circuit self-locking function | |
| CN101651070B (en) | Electromagnet breaker with short circuit self-locking function | |
| CN201266583Y (en) | Circuit breaker with over current self-locking function | |
| CN201397779Y (en) | Self-recovering air switch | |
| CN208796926U (en) | A kind of breaker of plastic casing with adjustable type overload-alarm non-tripping function | |
| CN101807498B (en) | Mechanical circuit breaker with short-circuit self-locking mechanism | |
| CN203456394U (en) | Tripping indicating device for circuit breaker and circuit breaker | |
| KR100521502B1 (en) | Electric leakage circuit breaker with latch type | |
| CN217467101U (en) | Generator anti-tripping loop detection auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090325 Effective date of abandoning: 20080707 |
|
| RGAV | Abandon patent right to avoid regrant |