CN201156663Y - Earth fault breaker apparatus having fast reset characteristic - Google Patents
Earth fault breaker apparatus having fast reset characteristic Download PDFInfo
- Publication number
- CN201156663Y CN201156663Y CNU2007201990201U CN200720199020U CN201156663Y CN 201156663 Y CN201156663 Y CN 201156663Y CN U2007201990201 U CNU2007201990201 U CN U2007201990201U CN 200720199020 U CN200720199020 U CN 200720199020U CN 201156663 Y CN201156663 Y CN 201156663Y
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Abstract
A grounding fault breaking device with the characteristic of fast reposition includes a creepage signal detection circuit, a reposition transmission part, an electromagnetic tripping mechanism and an active switch unit; a controllable silicon apparatus is continuously connected through during any half period of an AC period by leading in a DC voltage bias to the anode and the control pole of the controllable silicon apparatus by the active switch unit during the reposition process, thereby improving the reposition speed.
Description
Technical field
The utility model relates to a kind of grounding fault breaking apparatus, relates in particular to a kind of grounding fault breaking apparatus with quick reset feature.
Background technology
The earth leakage protective socket of reverse wiring protection function, creepage protection function has appearred having in safe in utilization for other electric equipments such as household electrical appliance.Applicant's of the present utility model utility model patent 02243497.6 and U.S. Pat 7019952 have been introduced a kind of earth leakage protective socket, and these two patent documentations quote in full herein.During installation, if wiring error, this earth leakage protective socket can stop power input to be connected with output electric power; The power input line reversal connection is during to the socket output, the output of earth leakage protective socket output no-voltage, and have only when the socket wiring is correct, socket just can reset, and the socket output just has voltage output.
Existing grounding fault breaking apparatus with reverse wiring protection function; when normal the use; press reset button to realizing resetting the conducting operating state by initial trip status; the action of electromagnetic trip mechanism needs solenoid to flow through the magnetic force that enough big electric current produces to drive in this process, and flow through big electric current in the solenoid can only be in the half period of ac period, could realize during the silicon-controlled device conducting.
The utility model content
The utility model is on the basis that the grounding fault breaking apparatus with reverse wiring protection function is provided; also done further improvement; can make in the solenoid any half period Continuous Flow super-high-current at ac period, the continuous action of electromagnetic trip mechanism improves reset speed.
The utility model adopts following technical scheme for achieving the above object, and a kind of grounding fault breaking apparatus is provided, and it comprises: leakaging signal detecting circuit, the running part that resets, electromagnetic trip mechanism, active switches set.Described leakaging signal detecting circuit is used to detect electric leakage signal, produces a control signal according to electric leakage signal; The described running part that resets comprises a reset button, and described reset button can be in a primary importance or a second place; Described electromagnetic trip mechanism, comprise one first silicon-controlled device and a working control switch, the anode of described first silicon-controlled device is introduced the alternating voltage biasing by described working control switch, the control signal that described first silicon-controlled device can be produced by described electric-leakage detection circuit is controlled and conducting, described electromagnetic trip mechanism produces action when the described first silicon-controlled device conducting, described reset button can be controlled from described second site reversion to described primary importance by this action; Anode, the control utmost point that described active switches set is used for to described first silicon-controlled device are introduced the direct voltage biasing; Wherein, described working control switch is subjected to the described running part action control and moving of resetting, and when described reset button was in described primary importance, described working control switch disconnected, when described reset button is in the described second place, and described working control switch closure.
When pressing reset button from initial condition, described active switches set closure, the first silicon-controlled device anode in the described electromagnetic trip mechanism, the control utmost point add the direct voltage biasing respectively, make the silicon-controlled device of winning in the continuous conducting of any half period of ac period, the execution of described electromagnetic trip mechanism, the input of grounding fault breaking apparatus, output conducting, described active switches set disconnects.
Described active switches set can adopt two switches, introduces direct voltage for respectively the anode of described first silicon-controlled device, the control utmost point.Described active switches set also can adopt a switch to introduce direct voltage for the anode of described first silicon-controlled device, the control utmost point, there is branch road to connect between the anode of described first silicon-controlled device and the control utmost point at this moment, for during preventing input, output normally at grounding fault breaking apparatus, the unexpected conducting of described first silicon-controlled device need be provided with a unidirectional conduction device in the anode of silicon-controlled device and switch.
For the functional reliability of the grounding fault breaking apparatus further strengthening providing in the utility model, can also give described first silicon-controlled device one second silicon-controlled device, the perhaps more silicon-controlled devices of parallel connection in parallel.
Description of drawings
Fig. 1 is the side sectional view of the utility model embodiment 1 under trip status;
Fig. 2 is the circuit diagram of the utility model embodiment 1;
Fig. 3 is the side sectional view of the utility model embodiment 2 under trip status;
Fig. 4 is the circuit diagram of the utility model embodiment 2.
Embodiment
In order to understand the utility model better, be described further below in conjunction with specific embodiment of the utility model, but it does not limit the utility model.
Describe first embodiment of the present utility model in detail below in conjunction with Fig. 1, Fig. 2.
With reference to figure 1, Fig. 2, the input lead is arranged to 36 below the support 5, which is provided with electrical contact 67,68; The input lead is provided with the socket lead to 38 to 36 both sides, and electrical contact 66,69 is arranged on it; The input lead to 36 and the socket lead be provided with the disconnected lead of output under to 38 to 37, wire of output terminal to have on 37 electrical contact 61,62,63,64 respectively with the input lead to 36 and the socket lead corresponding to the electrical contact 66,67,68,69 on 38, and electrical contact 61 and 62 is communicated with, electrical contact 63 and 64 is communicated with, more than recovery switch in these electrical contact corresponding diagram 2.
Be provided with reset button 8 above support 5, reset button 8 connects return pin 9, and return pin 9 is passed support 5, is provided with back-moving spring 21 between reset button 8 and the support 5, and back-moving spring 21 is enclosed within on the return pin 9; Support 5 belows are provided with carriage 26, and carriage 26 belows are provided with release 27, and carriage 26 and release 27 all have central perforation, and return pin 9 extend among these two central perforations.
Continuation is with reference to figure 1, Fig. 2, and the side of carriage 26 is provided with two wire jumpers 11,12 and is connected on the circuit board 6; Wire jumper 11 is provided with electrical contact 58, and wire jumper 12 is provided with electrical contact 57; Electrical contact 58,57 consistencies from top to bottom, electrical contact 58 up, electrical contact 57 below, the switch SW 3 in these two electrical contact corresponding diagram 2; The horizontal direction arm of wire jumper 12 is between two horizontal extensions of carriage 26 and clamped down on by it, and electric contact 57,58 does not contact under the trip status, makes electric contact 57,58 contacts, switch SW 3 closures thereby can hold up wire jumper 12 when carriage 26 lifts.
A L type snap close 24 is arranged in the release 27, and the horizontal arm of snap close 24 stretches into release 27 and passes central perforation; The horizontal arm of snap close 24 is provided with perforation 25, and snap close 24 can move by along continuous straight runs between the position that the position and the offset from center of perforation 25 alignment central perforations are bored a hole; One side of L type snap close 24 is provided with trip assembley therefor, comprises solenoid 33, dropout spring 32 and dropout iron core 31; One end of dropout iron core 31 is connected with dropout spring 32, and places solenoid 33 together; Perforation 28 engagements on the groove 34 of dropout iron core 31 other ends and the upright arm of snap close 24, when flowing through enough big electric current in the solenoid 33, dropout iron core 31 can be subjected to magnetic force to influence along continuous straight runs to move, thus drive snap close 24 correspondingly moves.
For present embodiment, active switches set comprises switch SW 1, SW2, be arranged at the below of release 27, comprise a pair of elastic sheet metal 41,42 that is connected to circuit board 6, the top of these two elastic sheet metals 41,42 is respectively equipped with electrical contact 53,54, corresponding with it two electrical contacts 51,52 that on circuit board 6, are provided with, elastic sheet metal 41, electrical contact 53 and electrical contact 51 constitute switch SW 1, and elastic sheet metal 42, electrical contact 54 and electrical contact 52 constitute switch SW 2; When release 27 is depressed, electrical contact 53,51 contacts, electrical contact 54,52 contacts simultaneously, switch SW 1, the closed conducting of SW2.
With reference to figure 1, Fig. 2, at trip status, the input lead to 36, the socket lead is in off-state with wire of output terminal to 37 to 38; When mistake power supply is inserted from output, press reset button 8, return pin 9 is pressed on the horizontal arm of L type snap close 24, release 27 is along with moving down, depress elastic sheet metal 41,42 make switch SW 1, SW2 is communicated with, because input, the output contact is in off-state, SCR1 can not conducting, there is not enough big electric current to flow through in the solenoid 33, can't drive L type snap close 24 moves, when the effect of reset button 8 because of back-moving spring 21 pops up, release 27 is along with elastic sheet metal 41,42 effect is returned to initial position, the input lead is to 36, the socket lead still is in off-state with wire of output terminal to 37 to 38, and output and socket must not.
When correct inserted power supply by input, press reset button 8, return pin 9 is pressed on the horizontal arm of L type snap close 24, release 27 is along with moving down, depress elastic sheet metal 41,42 make switch SW 1, SW2 is communicated with, SCR1 conducting this moment, there is enough big electric current to flow through in the solenoid 33, dropout iron core 31 is influenced by magnetic force and moves, and moves thereby drive L type snap close 24, thereby makes return pin 9 to pass and 24 engagements of L type snap close 25 from boring a hole, when the effect of reset button 8 because of back-moving spring 21 pops up, drive release 27 and move up switch SW 1 thereupon, SW2 disconnects immediately, and electric contact 57 contacts with 58, switch SW 3 closures, the input lead is to 36, the socket lead is in connected state with wire of output terminal to 37 to 38, and indicator light LED lights, output and socket electrifying.
Describe second embodiment of the present utility model in detail below in conjunction with Fig. 3, Fig. 4.
With reference to figure 3, Fig. 4, the input lead is arranged to 136 below the support 105, which is provided with electrical contact 167,168; The input lead is provided with the socket lead to 138 to 136 both sides, and electrical contact 166,169 is arranged on it; The input lead to 136 and the socket lead be provided with the disconnected lead of output under to 138 to 137, wire of output terminal to have on 137 electrical contact 161,162,163,164 respectively with the input lead to 136 and the socket lead corresponding to the electrical contact 166,167,168,169 on 38, and electrical contact 161 and 162 is communicated with, electrical contact 163 and 164 is communicated with, more than recovery switch in these electrical contact corresponding diagram 4.
Be provided with reset button 108 above support 105, reset button 108 connects return pin 109, and return pin 109 is passed support 105, is provided with back-moving spring 121 between reset button 108 and the support 105, and back-moving spring 121 is enclosed within on the return pin 109; Support 105 belows are provided with carriage 126, and carriage 126 belows are provided with release 127, and carriage 126 and release 127 all have central perforation, and return pin 109 extend among these two central perforations.
Continuation is with reference to figure 3, Fig. 4, and the side of carriage 126 is provided with two wire jumpers 111,112 and is connected on the circuit board 106; Wire jumper 111 is provided with electrical contact 158, and wire jumper 112 is provided with electrical contact 157; Electrical contact 158,157 consistencies from top to bottom, electrical contact 158 up, electrical contact 157 below, the switch SW 3 in these two electrical contact corresponding diagram 4; The horizontal direction arm of wire jumper 112 is in the middle of two horizontal extensions of carriage 126 and clamped down on by it, and electric contact 157,158 does not contact under the trip status, makes electric contact 157,158 contacts, switch SW 3 closures thereby can hold up wire jumper 112 when carriage 126 lifts.
A L type snap close 124 is arranged in the release 127, and the horizontal arm of snap close 124 stretches into release 127 and passes central perforation; The horizontal arm of snap close 124 is provided with perforation 125, and snap close 124 can move by along continuous straight runs between the position that the position and the offset from center of perforation 125 alignment central perforations are bored a hole; One side of L type snap close 124 is provided with trip assembley therefor, comprises solenoid 133, dropout spring 132 and dropout iron core 131; One end of dropout iron core 131 is connected with dropout spring 132, and places solenoid 133 together; The groove 134 of dropout iron core 131 other ends meshes with the perforation 128 on the upright arm of snap close 124, when flowing through enough big electric current in the solenoid 133, dropout iron core 131 can be subjected to magnetic force to influence along continuous straight runs to move, and correspondingly moves thereby drive snap close 124.
For present embodiment, active switches set adopts single switch SW 1, and the one end is connected to the anode of silicon-controlled device by diode D5; Switch SW 1 is arranged at the below of release 127, comprise the elastic sheet metal 141 that is connected to circuit board 106, the top of elastic sheet metal 141 is provided with electrical contact 153, the corresponding with it electrical contact 151 that on circuit board 106, is provided with, elastic sheet metal 141, electrical contact 153 and electrical contact 151 constitute switch SW 1; When release 127 is depressed, electrical contact 153,151 contacts, switch SW 1 closed conducting.
With reference to figure 3, Fig. 4, at trip status, the input lead to 136, the socket lead is in off-state with wire of output terminal to 137 to 138; When mistake power supply is inserted from output, press reset button 108, return pin 109 is pressed on the horizontal arm of L type snap close 124, release 127 is along with moving down, depressing elastic sheet metal 141 is communicated with switch SW 1, because input, the output contact is in off-state, SCR1 can not conducting, there is not enough big electric current to flow through in the solenoid 133, can't drive L type snap close 124 moves, when the effect of reset button 108 because of back-moving spring 121 pops up, release 127 is along with the effect of elastic sheet metal 141 is returned to initial position, the input lead is to 136, the socket lead still is in off-state with wire of output terminal to 137 to 138, and output and socket must not.
When correct inserted power supply by input, press reset button 108, return pin 109 is pressed on the horizontal arm of L type snap close 124, release 127 is along with moving down, depressing elastic sheet metal 141 is communicated with switch SW 1, SCR1 conducting this moment, there is enough big electric current to flow through in the solenoid 133, dropout iron core 131 is influenced by magnetic force and moves, and moves thereby drive L type snap close 124, thereby makes return pin 109 to pass and 124 engagements of L type snap close 125 from boring a hole, when the effect of reset button 108 because of back-moving spring 121 pops up, drive release 127 and move up thereupon, switch SW 1 disconnects immediately, and electric contact 157 contacts with 158, switch SW 3 closures, the input lead is to 136, the socket lead is in connected state with wire of output terminal to 137 to 138, and indicator light LED lights, output and socket electrifying.
Certainly; the utility model can also have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art should make various corresponding changes according to the utility model, but these corresponding changes all should belong to the protection range of the utility model claim.
Claims (10)
1. grounding fault breaking apparatus is characterized in that:
Leakaging signal detecting circuit is used to detect electric leakage signal, produces a control signal according to electric leakage signal;
The running part that resets comprises a reset button, and described reset button can be in a primary importance or a second place;
Electromagnetic trip mechanism comprises one first silicon-controlled device and a working control switch; The anode of described first silicon-controlled device is introduced the alternating voltage biasing by described working control switch, the control signal that described first silicon-controlled device can be produced by described electric-leakage detection circuit is controlled and conducting, described electromagnetic trip mechanism produces action when the described first silicon-controlled device conducting, described reset button can be controlled from described second site reversion to described primary importance by this action;
Active switches set, the anode, the control utmost point that are used for to described first silicon-controlled device are introduced the direct voltage biasing;
Wherein, described working control switch is subjected to the described running part action control and moving of resetting, and when described reset button was in described primary importance, described working control switch disconnected, when described reset button is in the described second place, and described working control switch closure.
2. grounding fault breaking apparatus according to claim 1 is characterized in that, when described working control switch was closed, described active switches set disconnected.
3. grounding fault breaking apparatus according to claim 1 and 2, it is characterized in that, described active switches set to small part is made by elastomeric material, be placed in the described running part below that resets, when depressing, the described transmission device that resets forces described active switches set closure, when the described transmission device that resets was upspring, described active switches set disconnected.
4. grounding fault breaking apparatus according to claim 3 is characterized in that, described active switches set comprises one first switch, a second switch; The control utmost point of described first silicon-controlled device is introduced d. c. voltage signal by described first switch, and the anode of described first silicon-controlled device is introduced d. c. voltage signal by described second switch; Described first switch and described second switch disconnect simultaneously or are closed.
5. grounding fault breaking apparatus according to claim 3 is characterized in that, described active switches set comprises an active switch; The anode of described first silicon-controlled device is connected to described active switch by the first conducting branch road that comprises a unidirectional conduction device, the control utmost point of described first silicon-controlled device is connected to described active switch by the second conducting branch road, and the anode of described first silicon-controlled device and the control utmost point are introduced d. c. voltage signal by described active switch.
6. grounding fault breaking apparatus according to claim 5 is characterized in that, described unidirectional conduction device comprises diode.
7. according to claim 5 or 6 described grounding fault breaking apparatus, it is characterized in that the described second conducting branch road comprises current-limiting resistance.
8. according to each described grounding fault breaking apparatus among claim 1-2, the 4-6, it is characterized in that, described electromagnetic trip mechanism also comprises one second silicon-controlled device, and the anode of this second silicon-controlled device, negative electrode, the control utmost point are extremely in parallel with anode, negative electrode, the control of described first silicon-controlled device respectively.
9. grounding fault breaking apparatus according to claim 3, it is characterized in that, described electromagnetic trip mechanism also comprises one second silicon-controlled device, and the anode of this second silicon-controlled device, negative electrode, the control utmost point are extremely in parallel with anode, negative electrode, the control of described first silicon-controlled device respectively.
10. grounding fault breaking apparatus according to claim 7, it is characterized in that, described electromagnetic trip mechanism also comprises one second silicon-controlled device, and the anode of this second silicon-controlled device, negative electrode, the control utmost point are extremely in parallel with anode, negative electrode, the control of described first silicon-controlled device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990201U CN201156663Y (en) | 2007-12-07 | 2007-12-07 | Earth fault breaker apparatus having fast reset characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990201U CN201156663Y (en) | 2007-12-07 | 2007-12-07 | Earth fault breaker apparatus having fast reset characteristic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201156663Y true CN201156663Y (en) | 2008-11-26 |
Family
ID=40104439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201990201U Expired - Lifetime CN201156663Y (en) | 2007-12-07 | 2007-12-07 | Earth fault breaker apparatus having fast reset characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201156663Y (en) |
-
2007
- 2007-12-07 CN CNU2007201990201U patent/CN201156663Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081126 |
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| CX01 | Expiry of patent term |