CN2311847Y - Non-inrush current, non-arc control switch - Google Patents
Non-inrush current, non-arc control switch Download PDFInfo
- Publication number
- CN2311847Y CN2311847Y CN 97229337 CN97229337U CN2311847Y CN 2311847 Y CN2311847 Y CN 2311847Y CN 97229337 CN97229337 CN 97229337 CN 97229337 U CN97229337 U CN 97229337U CN 2311847 Y CN2311847 Y CN 2311847Y
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- Prior art keywords
- switch
- contact
- signal
- thyristor
- control switch
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- 238000010891 electric arc Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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Abstract
The utility model discloses a there is not current of gushing, no electric arc control switch. The switch-on signal makes the zero-cross trigger send out trigger signal to the contactless switch of the control switch, and at the same time, the switch-on signal is delayed by a time delay device, and then the electronic switch is turned on. The breaking signal turns off the electronic switch, breaks the contact of the contact switch of the control switch, and turns off the output of the zero-crossing trigger after the breaking signal is delayed by the delayer. The utility model discloses both utilize contactless switch to realize that the switch is in the switch-on and the nothing of breaking process gushes the current, and no electric arc does not produce harmful overvoltage, utilizes the contact switch on-resistance little again, advantage that does not generate heat.
Description
The utility model relates to electronic switch, relates in particular to no-flashy-flow, no electric arc control switch.
Switch as the control element of electromechanical equipment, can be divided into contact switch and noncontacting switch.The conducting resistance of contact switch is little, generally do not generate heat, but because the angle of flow and the branch angle of rupture are arbitrarily, fashionable when using at alternating-current field, may be to connect or disjunction in the highest moment of voltage, therefore often when connecting, produce very big impact and shove, especially during capacitive load; Produce overvoltage during disjunction, especially during inductive load.The impact of shoving, superpotential effect often make electromechanical equipment damage.Also can produce electric arc when contact switch connection and disjunction, corrosion contact itself, this is a short main cause of present contact switch life-span.Contact switch is fashionable in dc fields when using, and above-mentioned situation is with even more serious.Noncontacting switch, as thyristor, the angle of flow when it is connected can accurately be controlled, as conducting when being controlled at voltage zero-cross; With the disappearance of triggering signal, when current over-zero, turn-off naturally during disjunction.Therefore can not produce impact shove, phenomenons such as overvoltage and electric arc.So noncontacting switch can overcome the major defect of contact switch, but the conducting resistance of noncontacting switch is bigger, works long hours and will generate heat, and has limited the expansion of application.
It is little that the purpose of this utility model provides a kind of conducting resistance, is difficult for the no-flashy-flow of heating, no electric arc control switch.
The utility model is taked following measures in order to achieve the above object, it comprises that connection signal makes over-zero trigger send triggering signal, simultaneously, connection signal is after the delayer time-delay, open electronic switch, breaking signal is turn-offed electronic switch, simultaneously, breaking signal is after the delayer time-delay, turn-off the output of over-zero trigger, it is characterized in that said connection signal makes over-zero trigger send the noncontacting switch that triggering signal is sent to control switch, breaking signal is turn-offed electronic switch, and makes the contact switch contact disjunction of control switch; By two unidirectional thyristor V
1, V
2Noncontacting switch, thyristor V are formed in inverse parallel
1, V
2The two-way output of the control utmost point and above-mentioned over-zero trigger [5] link to each other, form contact switch by coil C and contact S, contact S and thyristor V
1, V
2Parallel connection, thyristor V
1Anode, thyristor V
2Negative electrode and contact S be connected in and a bit join thyristor V with electrical network
2Negative electrode and thyristor V
1The anode and the contact S other end be connected in one point union and join through AC power load and electrical network, the end of coil C links to each other with the output of above-mentioned electronic switch, the other end and the electrical network of coil C join.
The utility model is under the control of electronic controller, the controlled characteristics of the noncontacting switch angle of flow have promptly been utilized, make it work in the moment of connection and disjunction, realized the no-flashy-flow of switch at connection and breaking course, no electric arc reaches and does not produce harmful overvoltage, has utilized the contact switch conducting resistance little again, athermic advantage, it is worked in except that connecting and stage of possible conducting for a long time disjunction moment, overcome the shortcoming that noncontacting switch works independently and will generate heat.
Elaborate below in conjunction with accompanying drawing.
Fig. 1 is a no-flashy-flow, no electric arc control switch operation principle block diagram;
Fig. 2 is the control switch electrical schematic diagram.
No-flashy-flow, no electric arc control switch comprises that connection signal 1 makes over-zero trigger 5 send triggering signal, simultaneously, connection signal 1 is after delayer 3 time-delays, open electronic switch 6, breaking signal 2 is turn-offed electronic switch 6, simultaneously, breaking signal 2 is after delayer 4 time-delays, turn-off the output of over-zero trigger 5, it is characterized in that said connection signal 1 makes over-zero trigger 5 send the noncontacting switch that triggering signal is sent to control switch 7, breaking signal 2 is turn-offed electronic switch 6, and makes the contact switch contact disjunction of control switch 7; By two unidirectional thyristor V
1, V
2Noncontacting switch, thyristor V are formed in inverse parallel
1, V
2The two-way output of the control utmost point and above-mentioned over-zero trigger [5] link to each other, form contact switch by coil C and contact S, contact S and thyristor V
1, V
2Parallel connection, thyristor V
1Anode, thyristor V
2Negative electrode and contact S be connected in and a bit join thyristor V with electrical network
2Negative electrode and thyristor V
1The anode and the contact S other end be connected in one point union and join through AC power load and electrical network, the end of coil C links to each other with the output of above-mentioned electronic switch 6, the other end and the electrical network of coil C join.Contact switch is contactor or relay contact.
No-flashy-flow, the connection process of no electric arc control switch is: electronic controller makes over-zero trigger 5 send the noncontacting switch that triggering signal is sent to control switch 7 according to connection signal 1, makes noncontacting switch conducting when the line voltage zero passage.Simultaneously, electricity give controller with connection signal 1 after delayer 3 time-delay, open electronic switch 6, make the contact switch of control switch 7 get electric adhesive, contact S connects.So far no-flashy-flow, no electric arc control switch are connected journey and are finished.The breaking course of switch is: electronic controller at first makes electronic switch 6 turn-off according to breaking signal 2, the contact switch outage of control switch 7 is discharged, contact S disjunction: simultaneously electronic controller with breaking signal 2 after delayer 4 time-delays, turn-off the output of over-zero trigger 5, the noncontacting switch of control switch 7 is turn-offed when current over-zero naturally, so far, breaking course finishes.As seen, no-flashy-flow, the connection of no electric arc control switch and the program of breaking course are: connect, noncontacting switch conducting → contact switch is connected; Disjunction, contact switch disjunction → noncontacting switch turn-offs.
Claims (2)
1. no-flashy-flow, no electric arc control switch, it comprises that connection signal [1] makes over-zero trigger [5] send triggering signal, simultaneously, connection signal [1] is after delayer [3] time-delay, open electronic switch [6], breaking signal [2] is turn-offed electronic switch [6], simultaneously, breaking signal [2] is after delayer [4] time-delay, and the output of turn-offing over-zero trigger [5] is characterized in that said connection signal [1] makes over-zero trigger [5] send the noncontacting switch that triggering signal is sent to control switch [7], breaking signal [2] is turn-offed electronic switch [6], and makes the contact switch contact disjunction of control switch [7]; By two unidirectional thyristor V
1, V
2Noncontacting switch, thyristor V are formed in inverse parallel
1, V
2The two-way output of the control utmost point and above-mentioned over-zero trigger [5] link to each other, form contact switch by coil C and contact S, contact S and thyristor V
1, V
2Parallel connection, thyristor V
1Anode, thyristor V
2Negative electrode and contact S be connected in and a bit join thyristor V with electrical network
2Negative electrode and thyristor V
1The anode and the contact S other end be connected in one point union and join through AC power load and electrical network, the end of coil C links to each other with the output of above-mentioned electronic switch [6], the other end and the electrical network of coil C join.
2. a kind of no-flashy-flow according to claim 1, no electric arc control switch is characterized in that said contact switch is contactor or relay contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229337 CN2311847Y (en) | 1997-10-10 | 1997-10-10 | Non-inrush current, non-arc control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97229337 CN2311847Y (en) | 1997-10-10 | 1997-10-10 | Non-inrush current, non-arc control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2311847Y true CN2311847Y (en) | 1999-03-24 |
Family
ID=33942178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97229337 Expired - Fee Related CN2311847Y (en) | 1997-10-10 | 1997-10-10 | Non-inrush current, non-arc control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2311847Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004019358A1 (en) * | 2002-07-31 | 2004-03-04 | Shanghai Tianfong Science & Technology Developmentco., Ltd. | Electronic switch device operated in state of zero load |
| CN100438270C (en) * | 2005-09-21 | 2008-11-26 | 韩光电气株式会社 | Electrical automatic transfer switch having thermal overload protection |
-
1997
- 1997-10-10 CN CN 97229337 patent/CN2311847Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004019358A1 (en) * | 2002-07-31 | 2004-03-04 | Shanghai Tianfong Science & Technology Developmentco., Ltd. | Electronic switch device operated in state of zero load |
| CN100438270C (en) * | 2005-09-21 | 2008-11-26 | 韩光电气株式会社 | Electrical automatic transfer switch having thermal overload protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |