CN2904264Y - Circuit arrangement for controlling mechanoelectric driver - Google Patents
Circuit arrangement for controlling mechanoelectric driver Download PDFInfo
- Publication number
- CN2904264Y CN2904264Y CN 200620112287 CN200620112287U CN2904264Y CN 2904264 Y CN2904264 Y CN 2904264Y CN 200620112287 CN200620112287 CN 200620112287 CN 200620112287 U CN200620112287 U CN 200620112287U CN 2904264 Y CN2904264 Y CN 2904264Y
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- CN
- China
- Prior art keywords
- current path
- auxiliary
- switch
- winding
- circuit arrangement
- 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 - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
In order to improve a circuit arrangement used for controlling the electro-mechanical drive (2), the drive device has two co-rotating windings (3,4), the first of which (3) is used to produce the gravitational field in order to introduce the driving motion into the contact point system (9) of the vacuum switch (9), while the second of which (4) is used to produce the maintained field in order to keep the contact point system (9) in its connecting state. Thereinto, the first winding (3) and the first power supply (15) constitute the first current path (14), in which a controllable first auxiliary switch (13) is arranged, while the second winding (4) and the first power supply (15) form the second current path (18), in which the second controllable auxiliary switch (17) is arranged. The circuit arrangement has improved circuit property and the utility model proposes that the second current path (18) should be provided with a diode (21) which has the conducting direction of the current direction of the second current path (18).
Description
One, technical field
The present invention relates to a kind of circuit arrangement that is used for the controller electric driver, this drive unit has two windings in the same way, first winding of this drive unit is used for producing gravitational field so that actuation movement is introduced the contact system of vacuum switch, second winding of this drive unit is used for producing the maintenance field so that contact system is remained on its on-state, wherein, first winding and first power supply constitute first current path, in this first current path, be provided with the first controlled auxiliary switch, and second winding and first power supply constitute second current path, are provided with the second controlled auxiliary switch in this second current path.
Two, background technology
In Siemens's vacuum switch 3 TL 71, used the sort circuit layout.Have two electro-mechanical driving devices of winding in the same way for controlling one, first winding is used for producing gravitational field so that actuation movement is introduced the contact system of vacuum switch, wherein be provided with first a controlled auxiliary switch in first current path that is made of first winding and first power supply, described current path can be connected by means of this first auxiliary switch control.When first current path was connected, the voltage that puts on first winding produced a magnetic field in electro-mechanical driving device, and wherein, electro-mechanical driving device is connected the contact system of vacuum switch.Second winding that is arranged in second current path with first power supply is used for producing the maintenance field, and after passing through the gravitational field make contact system of first winding, this maintenance field is used for contact system is remained on its on-state.Keep the field for turn-offing, in second current path, be provided with same second a controlled auxiliary switch.Can apply voltage to each winding by suitable drive mechanism by means of first and second auxiliary switches, thus make have two in the same way the electro-mechanical driving device of winding correspondingly produce or turn-off gravitational field and keep.
Three, summary of the invention
Task of the present invention is, improves the circuit arrangement of the described type of beginning, and it has the circuit characteristic of improvement.
In a kind of circuit arrangement that starts described type, according to the present invention, this task solves in the following way, promptly is provided with the diode of a conducting direction for the sense of current that flows in second current path in second current path.
Can simply and advantageously improve circuit characteristic by means of this diode, can not flow into second current path by connection line by diode because the electricity that produces when turn-offing gravitational field in first current path dashes.If this diode not in second current path, electric current just might flow into second current path from first current path so, thereby may weaken the intensity of the maintenance field that produces in second winding, makes it be not enough to contact system is remained on on-state.Effectively stoped this electric current to flow in the opposite direction in second current path by means of this diode, thereby made that the intensity of the maintenance field that produces is unaffected in second winding by first current path.
In a preferred embodiment, the first controlled auxiliary switch is by first auxiliary drive control that is arranged in the first auxiliary current path, the described first auxiliary current path has the 3rd auxiliary switch that the driving mechanism for switch of vacuum switch together is coupled, the 3rd auxiliary switch is in its on-state when the contact system of vacuum switch disconnects, be in its off-state when the contact system of vacuum switch is connected.
This control to first auxiliary switch is favourable, gravitational field when first winding applied voltage will be created in because when just can be implemented in first auxiliary switch and connect first winding is applied voltage, and gravitational field can be turn-offed simply with being coupled of switch shaft by the 3rd auxiliary switch in simple mode.When the contact system of vacuum switch was connected, the maintenance field that is produced by second winding was enough to contact system is remained on its on-state.
In another favourable design of the present invention, the second controlled auxiliary switch is by second auxiliary drive control that is arranged in the second auxiliary current path.But can constitute the voltage that applies in simple mode to the break-make that is used to produce second winding that keeps by control second auxiliary switch with this auxiliary drive.
Four, description of drawings
By means of an embodiment and accompanying drawing the present invention is described in detail below, unique accompanying drawing shows the schematic diagram of arranging in a circuit according to the invention.
Five, embodiment
Accompanying drawing shows the control circuit 1 that is used for controller electric driver 2, and it has two windings 3 and 4 in the same way.Electro-mechanical driving device 2 is used for the driving mechanism for switch 5 that drive form is a switch shaft 5, and this switch shaft 5 is in the current collector 6,7 and 8 of contact system 9 of vacuum switch 9 with actuation movement introducing form.Vacuum switch 9 is used to connect the triple line road network that has three-line 10,11 and 12 in the present embodiment.First winding 3 of electro-mechanical driving device 2 constitutes first current path 14 with first auxiliary switch 13, and this first current path connects with first power supply 15.In the present embodiment, first power supply 15 is AC power, and it is applied on first current path by assembly 16.Assembly 16 comprises that a plurality of diodes and varistor are used for the AC rectification to power supply 15, and as overvoltage protection.Second winding 4 of electro-mechanical driving device 2 constitutes second current path 18 with second auxiliary switch 17, and it is connected with first power supply 15 that is used to power equally.Wherein, first current path 14 and second current path 18 are connected to each other at branch road 19,20 places, and are connected with first power supply 15 with assembly 16 by common circuit.A diode 21 so is set in second current path 18, and making the electricity that produces when turn-offing gravitational field in first current path 14 not dash can flow in second current path 18 by branch road 19.Thus, avoided from the maintenance field of the current affects in first current path 14 by diode 21 by 4 generations of second winding.Control to first auxiliary switch 13 and second auxiliary switch 17 realizes by first auxiliary drive 22 that is used for first auxiliary switch 13 and second auxiliary drive 23 that is used for second auxiliary switch 17.Wherein, first auxiliary drive 22 and second auxiliary drive 23 are arranged in the first auxiliary current path 24 or the second auxiliary current path 25, and the first auxiliary current path 24 is connected with second source 26 for auxiliary drive 22 and 23 is powered with the second auxiliary current path 25.Be provided with one the 3rd auxiliary switch 27 in the first auxiliary current path 24, its current collector 28 is coupled with the switch shaft 5 of vacuum switch 9, and is in its on-state when the off-state of vacuum switch 9.First auxiliary drive 22 is used to operate first auxiliary switch 13, and this connection 29 by dotted line schematically shows.Second auxiliary drive 23 is used to drive second auxiliary switch 17, and this connection 30 by dotted line schematically shows.
Introduce the function of circuit arrangement below in detail.Shown in the state, the contact 6,7 and 8 of vacuum switch 9 is disconnected, the 3rd auxiliary switch 27 is in its on-state.First and second auxiliary switches 13 and 17 also are disconnected.If the control device by a not shown higher level applies voltage on first power supply 15 and second source 26, so at first connect first auxiliary switch 13 and second auxiliary switch 17 by first auxiliary drive 22 and second auxiliary drive 23, like this, just be applied on first winding 3 and second winding 4 of electro-mechanical driving device 2 by the direct voltage that first power supply 15 produces by assembly 16.First winding 3 by electro-mechanical driving device 2 produces a polarity field, thereby it makes switch shaft 5 move the contact 6,7 and 8 of connecting vacuum switch 9.Having produced a magnetic simultaneously by second winding 4 of the electro-mechanical driving device 2 that is loaded direct voltage through second current path 18 equally keeps being used for the contact 6,7 and 8 of vacuum switch 9 is remained on its on-position.The contact 6,7 of connecting vacuum switch 9 with the gravitational field of electro-mechanical driving device 2 and 8 o'clock, disconnect the 3rd auxiliary switch 27 by the 3rd auxiliary switch 27 and being coupled of switch shaft 5, like this, first auxiliary drive 22 just no longer is applied in voltage, and this causes the disconnection of first auxiliary switch 13.Like this, the polarity field of first winding 3 of electro-mechanical driving device 2 just is turned off.Under this state, continue second winding 4 of electro-mechanical driving device 2 is applied voltage by second current path 18 that still is in on-state, keep magnetic to keep the field, thereby make the contact 6,7 and 8 of vacuum switch 9 rest on its on-state.When for example not resupplying second source voltage by not shown higher level's control device, thereby make second auxiliary drive 23 also no longer be applied in voltage, when second auxiliary switch 17 disconnected, described maintenance field was turned off.
When connecting vacuum switch 9 by the gravitational field of first winding 3, diode 21 in second current path 18 guarantees to prevent that the electricity that is produced from dashing the influence to the maintenance field of second winding 4 when turn-offing gravitational field, because so connect diode 21, make this electric current can not flow into second current path, contact 6,7 and 8 is remained on its on-position thereby the feasible maintenance field that is produced by second winding 4 always has enough intensity from first current path.
The Reference numeral table
1 circuit arrangement
2 electro-mechanical driving devices
3 first windings
4 second windings
5 switch shafts
6,7,8 contacts
9 vacuum switches
10,11,12 phase lines
13 first auxiliary switches
14 first current paths
15 first power supplys
16 assemblies
17 second auxiliary switches
18 second current paths
19 branch roads
20 branch roads
21 diodes
22 first auxiliary drives
23 second auxiliary drives
24 first auxiliary current paths
25 second auxiliary current paths
26 second sources
27 the 3rd auxiliary switches
28 current collectors
29 connect
30 connect
Claims (3)
1. the circuit arrangement that is used for controller electric driver (2), this drive unit has two windings (3 in the same way, 4), first winding (3) of this drive unit is used for producing gravitational field so that actuation movement is introduced the contact system (9) of vacuum switch (9), second winding (4) of this drive unit is used for producing the maintenance field so that contact system (9) is remained on its on-state, wherein, first winding (3) constitutes first current path (14) with first power supply (15), in this first current path, be provided with controlled first auxiliary switch (13), and second winding (4) constitutes second current path (18) with first power supply (15), in this second current path, be provided with the second controlled auxiliary switch (17), it is characterized in that, in second current path (18), be provided with the diode (21) of a conducting direction for the sense of current mobile in second current path (18).
2. by the described circuit arrangement of claim 1, it is characterized in that, controlled first auxiliary switch (13) is by first auxiliary drive (a 22) control that is arranged in the first auxiliary current path (24), the described first auxiliary current path (24) has the 3rd auxiliary switch (27) that the driving mechanism for switch (5) of vacuum switch (9) together is coupled, the 3rd auxiliary switch is in its on-state when the contact system of vacuum switch (9) disconnects, be in its off-state when the contact system of vacuum switch (9) is connected.
3. by claim 1 or 2 described circuit arrangement, it is characterized in that controlled second auxiliary switch (17) is by second auxiliary drive (a 23) control that is arranged in the second auxiliary current path (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620112287 CN2904264Y (en) | 2006-05-31 | 2006-05-31 | Circuit arrangement for controlling mechanoelectric driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620112287 CN2904264Y (en) | 2006-05-31 | 2006-05-31 | Circuit arrangement for controlling mechanoelectric driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904264Y true CN2904264Y (en) | 2007-05-23 |
Family
ID=38079677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620112287 Expired - Fee Related CN2904264Y (en) | 2006-05-31 | 2006-05-31 | Circuit arrangement for controlling mechanoelectric driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904264Y (en) |
-
2006
- 2006-05-31 CN CN 200620112287 patent/CN2904264Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20100531 |