CN202307707U - Controlling means for AC electromagnetic execution mechanism - Google Patents
Controlling means for AC electromagnetic execution mechanism Download PDFInfo
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- CN202307707U CN202307707U CN2011203671368U CN201120367136U CN202307707U CN 202307707 U CN202307707 U CN 202307707U CN 2011203671368 U CN2011203671368 U CN 2011203671368U CN 201120367136 U CN201120367136 U CN 201120367136U CN 202307707 U CN202307707 U CN 202307707U
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Abstract
Provided is a controlling means for an AC electromagnetic execution mechanism, characterized in that: the load is a coil L; the main circuit is composed of a unidirectional silicon controlled V1, a rectifier bridge D1-D4, and a diode D1; the trigger circuit is composed of a diode D4, a resistor RJ1, a capacitor C2, a resistor RJ3, a resistor RJ2, and a diode D2; the delay cut-off circuit is composed of a triode V2, a resistor RJ4, a voltage-regulator tube V3, a capacitor C3, a resistor RJ6, a resistor RJ5, and a diode D3; and the retaining circuit is composed of a capacitor C1, a winding resistor RX, and a rectifier bridge D1-D4. Without a transformer and a retaining coil, just a coil L can realize the starting and automatic break of the starting current and the retaining of low current. The controlling means, with simple structured circuit and few elements, processes all the advantages of the AC-to-DC operating products.
Description
Technical field
The utility model relates to control, particularly alternating current tracting magnet, the alternating electromagnetic brake of a kind of alternating electromagnetic actuator, the control of alternating electromagnetic pusher.
Background technology
The control technology of present alternating electromagnetic actuator has following some weak point;
1, because the alternating electromagnetic product is permanent magnetic linkage, and the electric current in the coil changes with stroke, electric current is maximum during range, otherwise minimum, so that the current in wire density in the coil can not be got is very big.The aspect is in the one-period under the frequency of operation in addition, and what account for conduction time is more, so the permission frequency of operation of alternating electromagnetic product is very low, otherwise temperature rise, coil is fragile.
Though 2, armature adhesive after-current is minimum, because the magnetic hysteresis eddy current keeps power still very big, long-term energising operation temperature rise is higher, and when particularly keeping air gap to become big for some reason, not only electric current increases, and noise is big, and coil is fragile.
3, the alternating electromagnetic product has all been set the current on time index usually, has limited the use of product.
4, present product has passes through technological improvement, has realized the AC power input, and DC operation has overcome the some shortcomings of alternating electromagnetic product, but needs transformer or twin coil to accomplish.The control technology of not wanting transformer or twin coil has been arranged recently, but complicated circuit, it is many that element is used, easy break-down.The utility model has been invented a kind ofly without transformer for this reason, and without twin coil, the simple and reliable new technical scheme of circuit overcomes the deficiency of prior art.
The utility model content
The technical scheme of the utility model is: main circuit is by one-way SCR V1, and rectifier bridge D ' 1-D ' 4 continues and flows diode D1 and coil L composition.Circuits for triggering are made up of diode D2, resistance R J2, RJ3, capacitor C 2, resistance R J1, diode D4.Time-delay is cut off circuit and is made up of triode V2, resistance R J4, voltage-stabiliser tube V3, resistance R J6, capacitor C 3, resistance R J5, diode D3.Holding circuit is by capacitor C 1, and wire-wound resistor RX and rectifier bridge D ' 1-D ' 4 form.
Description of drawings
Fig. 1 is the control device functional-block diagram of alternating electromagnetic actuator.
Fig. 2 is the control device schematic diagram of alternating electromagnetic actuator.
Embodiment
The practical implementation of the utility model technical scheme is explained as follows: it is made up of coil L and main circuit, circuits for triggering, time-delay cut-out circuit, holding circuit, sees accompanying drawing 1.Accompanying drawing 2 is seen in concrete enforcement.The anode of the one-way SCR V1 of main circuit connects 4 ends of rectifier bridge D ' 1-D ' 4.The negative electrode of V1 connects power supply.2 termination powers of rectifier bridge D ' 1-D ' 4.The output of rectifier bridge D ' 1-D ' 4 and diode D1 and coil L also connect.The anode of the diode D2 of circuits for triggering connects power supply, and the D2 negative electrode joins with the contact that resistance R J5 links to each other with resistance R J2.The other end of RJ2 with connect power supply after capacitor C 2 is connected.Resistance R J3 and capacitor C 2 also connect.Resistance R J1 one terminates on the node in the middle of RJ2 and the C1, and the anode of the other end and diode D4 joins, and the negative electrode order of D4 is to the trigger electrode of controllable silicon V1.The collector electrode that the triode V2 of circuit is cut off in time-delay joins with RJ2, the middle node of C2; The emitter of V2 connects power supply; The base stage of V2 and resistance R J4 one end join, the anode of another termination voltage-stabiliser tube of RJ4 V3, and resistance R J6 and C3 also connect; Resistance R J5 and diode D3 also connect, and node in the middle of both connect afterwards and the negative electrode of V3 join.RJ6, C3 and connect after another termination power.Four ends of the capacitor C 1 one termination rectifier bridge D ' 1-D ' 4 of holding circuit, the other end and wire-wound resistor RX join, another termination power of RX.
Operation principle: AC power inserts, and during the voltage positive half wave, electric current charges to capacitor C 2 from diode D2, resistance R J2.The last voltage of C2 passes through RJ1, and diode D4 is added to the trigger electrode of one-way SCR V1.The V1 conducting.AC power is added to the input of rectifier bridge D ' 1-D ' 4, rectifier bridge D ' 1-D ' 4 outputs.Output full-wave direct current voltage is added to the two ends of coil L and diode D1.L gets electric armature and inhales moving closed.Power supply charges to capacitor C 3 through diode D2 resistance R J5 simultaneously, when charging voltage arrives the door current potential, and voltage-stabiliser tube V3 conducting, process RJ4 is added to the base stage of triode V2, V2 conducting.With the voltage short circuit on the C2, V1 turn-offs and ends.Starting current disappears.But power supply is through the D ' 2 and coil L and diode D ' 4 and capacitor C 1 and wire-wound resistor RX formation loop of rectifier bridge diode.Coil L still keeps through little electric current.When the power supply disconnection, holding current disappears, and armature discharges.
The characteristics of control device are: 1, circuit structure is simple, and what element was used lacks, and has only a coil, and starting current can be accomplished starting, can cut off automatically again, and holding current can reliably keep again.2, in the starting current make and break process of coil L, diode D1 accomplishes the stream that continues.3, the discharge of capacitor C 3 is on the one hand through resistance R J6, and diode D3 is passed through in the aspect in addition, resistance R J2, and resistance R J3 accelerates the velocity of discharge.Can improve frequency of operation.4, the resistance of adjustment resistance R J5 and the capacity of capacitor C 3, starting voltage and the electric current of may command coil L.
Claims (1)
1. the control device of alternating electromagnetic actuator is made up of coil L, main circuit, circuits for triggering, time-delay cut-out circuit, holding circuit, and it is characterized in that: the anode of one-way SCR V1 connects 4 points of rectifier bridge D ' 1-D ' 4; The negative electrode of V1 connects power supply, and the trigger electrode of V1 meets diode D4, and the termination of the other end of D4 and resistance R J1 joins; Another termination of RJ1 is connected on the intermediate node that resistance R J2 and capacitor C 2 link, and diode D2, resistance R J1, capacitor C 2 series connection backs also connect with power supply, resistance R J3 and capacitor C 2 and connect after an end and the collector electrode of triode V2 join; And be connected on the node in the middle of RJ2, the C2, another termination power, the emitter of V2 connects power supply; The termination of the base stage of V2 and resistance R J4 joins, and another termination of RJ4 connects the anode of voltage-stabiliser tube V3, and the node in the middle of the negative electrode of V3 and resistance R J5, the RJ6 joins; RJ5, RJ6 series connection back one termination power, the other end is connected on the node in the middle of D2, the RJ2, and capacitor C 3 and resistance R J6 also connect; Diode D3 and resistance R J5 also connect, the input 2 termination power ends of rectifier bridge D ' 1-D ' 4, and 4 ends connect power supply through V1; Two ends and the coil L and the diode D1 of rectifier bridge D ' 1-D ' 4 outputs also connects; After capacitor C 1 is connected with wire-wound resistor RX, 4 ends of a termination rectifier bridge D ' 1-D ' 4, another termination power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203671368U CN202307707U (en) | 2011-09-30 | 2011-09-30 | Controlling means for AC electromagnetic execution mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203671368U CN202307707U (en) | 2011-09-30 | 2011-09-30 | Controlling means for AC electromagnetic execution mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307707U true CN202307707U (en) | 2012-07-04 |
Family
ID=46376550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203671368U Expired - Fee Related CN202307707U (en) | 2011-09-30 | 2011-09-30 | Controlling means for AC electromagnetic execution mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307707U (en) |
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2011
- 2011-09-30 CN CN2011203671368U patent/CN202307707U/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 | ||
| DD01 | Delivery of document by public notice |
Addressee: Tian Jinming Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20130930 |