CN2831353Y - Drive circuit of double steady-state 2-position 3-way electromagnetic valve - Google Patents
Drive circuit of double steady-state 2-position 3-way electromagnetic valve Download PDFInfo
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- CN2831353Y CN2831353Y CN 200520087083 CN200520087083U CN2831353Y CN 2831353 Y CN2831353 Y CN 2831353Y CN 200520087083 CN200520087083 CN 200520087083 CN 200520087083 U CN200520087083 U CN 200520087083U CN 2831353 Y CN2831353 Y CN 2831353Y
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- 230000001960 triggered effect Effects 0.000 abstract description 8
- 230000008676 import Effects 0.000 description 13
- 230000002457 bidirectional effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a drive circuit of bistable two-position tee electromagnetic valve, which comprises a magnetic valve coil connected with a fire wire in series, wherein a parallel circuit which can be triggered and switched on in two ways is arranged between the magnetic valve coil and a zero curve. The parallel circuit is composed of a relay, a diode or a one-way thyristor. A parallel circuit of the relay and the diode is formed by connecting normally open contacts triggered by coils of a diode D2 and a relay K2 which are connected in series in a forward direction, and normally open contacts triggered by coils of a diode D1 and a relay K1 which are connected in series in a reverse direction in parallel, and the parallel circuit can also be formed by connecting the normally open contacts which are connected in forward connection and are triggered by the coils of the diode D2 through a relay K, and the normally open contact triggered by the coil of the diode D1 which is connected with the diode D2 in parallel. A parallel circuit of the one-way thyristor is formed by connecting a one-way thyristor TR2 in forward connection and a one-way thyristor TR1 in inverse connection in parallel. The utility model has the advantages of simple circuit, low cost and high reliability, and can be widely used in two-position tee electromagnetic valves.
Description
Technical field
The utility model belongs to the electromagnetically operated valve technical field, more particularly relates to the improvement of the drive circuit of bistable state two-position three way magnetic valve.
Background technology
The bistable state two-position three way magnetic valve is usually used in refrigerating system, and is in household electrical appliance such as refrigerator, refrigerator, air-conditioning, very important.Such as in refrigerator, two-position three way magnetic valve is connected between device for drying and filtering and refrigerating chamber capillary, the refrigerating chamber capillary, and the selection that is used for cold-producing medium is carried.When two-position three way magnetic valve generation coil open circuit, entirely stifled, ice stifledly, dirty block up, do not commutate, during fault such as bad sealing, refrigerator just can not operate as normal even can not freeze fully.
The drive circuit of traditional two-position three way magnetic valve adopts single bidirectional triode thyristor control.This bidirectional triode thyristor drive circuit must add zero cross detection circuit, and also higher to the requirement of transformer, thereby the circuit structure complexity, and production cost is higher, less reliable.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of drive circuit of bistable state two-position three way magnetic valve is provided.It has abandoned bidirectional triode thyristor drive circuit and transformer thereof, has cancelled zero cross detection circuit, and circuit structure is simple, and production cost reduces greatly, and reliability also obtains corresponding raising.
In order to achieve the above object, the utility model comprises the electromagnetic valve coil that is connected on the alternating current fire wire, it is characterized in that also connecting between electromagnetic valve coil and the zero line can two-way triggering two-way admittance parallel circuits, parallel circuits is made of relay, diode or one-way SCR.
Being connected the normally opened contact that the coil of the diode D1 of relay between electromagnetic valve coil and the zero line, normally opened contact that the diode parallel circuits can be triggered by the coil of forward diode in series D2 and relay K 2 and differential concatenation and relay K 1 triggers composes in parallel.
When conducting on the coil of relay K 2, the normally opened contact closure of its triggering, diode D2 halfwave rectifier, with the electromagnetic valve coil forward drive, the import of two-position three way magnetic valve and outlet 1 are communicated with, and import and outlet 2 end.When conducting on the coil of relay K 1, the normally opened contact closure of its triggering, diode D1 halfwave rectifier, with the electromagnetic valve coil reverse drive, the import of two-position three way magnetic valve and outlet 2 are communicated with, and import and outlet 1 end.
The one-way SCR parallel circuits that is connected between electromagnetic valve coil and the zero line is composed in parallel with the one-way SCR TR1 that oppositely is connected by the one-way SCR TR2 that forward connects.
When triggering one-way SCR TR2 conducting by the control utmost point, with the electromagnetic valve coil forward drive, the import of two-position three way magnetic valve and outlet 1 are communicated with, and import and outlet 2 end.When triggering one-way SCR TR1 conducting by the control utmost point, with the electromagnetic valve coil reverse drive, the import of two-position three way magnetic valve and outlet 2 are communicated with, and import and outlet 1 end.
The relay, the diode parallel circuits that are connected between electromagnetic valve coil and the zero line also can be connected to form through the normally opened contact one of the coil triggering of relay K through the normally opened contact two of the coil triggering of relay K and with diode D2 diode connected in parallel D1 by the diode D2 that forward connects.
When the coil of relay K triggers normally opened contact two when closed, diode D2 conducting halfwave rectifier, with the electromagnetic valve coil forward drive, the import of two-position three way magnetic valve and outlet 1 are communicated with, and import and outlet 2 end.When the coil of relay K triggers normally opened contact one when closed, diode D1 conducting halfwave rectifier, with the electromagnetic valve coil reverse drive, the import of two-position three way magnetic valve and outlet 2 are communicated with, and import and outlet 1 end.
Task of the present utility model comes to this and finishes.
The utility model has been abandoned bidirectional triode thyristor drive circuit and transformer thereof, has cancelled zero cross detection circuit, and circuit structure is simple, and production cost reduces greatly, and reliability also obtains corresponding raising.It can be widely used in the various two-position three way magnetic valves.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model embodiment 1.
Fig. 2 is the circuit theory diagrams of embodiment 2.
Fig. 3 is the circuit theory diagrams of embodiment 3.
Fig. 4 is for bistable state two-position three way magnetic valve and import, outlet 1 and export 2 schematic diagram.(1) is electromagnetic valve coil among the figure, and (2) are valve body.
Embodiment
Embodiment 1.A kind of drive circuit of bistable state two-position three way magnetic valve, as shown in Figure 1.It comprises the electromagnetic valve coil (1) that is connected on the alternating current fire wire N.Also connecting between electromagnetic valve coil (1) and the zero line L can two-way triggering two-way admittance parallel circuits, parallel circuits is made of relay, diode.
Being connected the normally opened contact that the coil of the diode D1 of relay between electromagnetic valve coil (1) and the zero line L, normally opened contact that the diode parallel circuits can be triggered by the coil of forward diode in series D2 and relay K 2 and differential concatenation and relay K 1 triggers composes in parallel.
Embodiment 2.A kind of drive circuit of bistable state two-position three way magnetic valve, as shown in Figure 2.It comprises the electromagnetic valve coil (1) that is connected on the alternating current fire wire N.Also connecting between electromagnetic valve coil (1) and the zero line L can two-way triggering two-way admittance parallel circuits, parallel circuits is made of one-way SCR.
The one-way SCR parallel circuits that is connected between electromagnetic valve coil (1) and the zero line L is composed in parallel with the one-way SCR TR1 that oppositely is connected by the one-way SCR TR2 that forward connects.
Embodiment 3.A kind of drive circuit of bistable state two-position three way magnetic valve, as shown in Figure 3.It comprises the electromagnetic valve coil (1) that is connected on the alternating current fire wire N.Also connecting between electromagnetic valve coil (1) and the zero line L can two-way triggering two-way admittance parallel circuits, parallel circuits is made of relay, diode.
Be connected diode D2 that relay between electromagnetic valve coil (1) and the zero line L, diode parallel circuits also can connect by forward through relay K (normally opened contact two that 1～N) coil triggers and with diode D2 diode connected in parallel D1 (normally opened contact one that 1～N) coil triggers connects to form through relay K.
The individual bistable state two-position three way magnetic valve 1～N of N (N is a positive integer) in parallel among Fig. 3.For can connecting or cut off N electromagnetically operated valve simultaneously, normally opened contact that the coil of relay K 1 triggers and and zero line L between also the connected normally opened contact that coil triggered of a relay K 0.
Claims (4)
1. the drive circuit of a bistable state two-position three way magnetic valve, it comprises the electromagnetic valve coil that is connected on the alternating current fire wire, it is characterized in that also connecting between electromagnetic valve coil and the zero line can two-way triggering two-way admittance parallel circuits, parallel circuits is made of relay, diode or one-way SCR.
2. according to the drive circuit of the described bistable state two-position three way magnetic valve of claim 1, it is characterized in that the normally opened contact that the coil of said diode D1 that is connected normally opened contact that relay between electromagnetic valve coil and the zero line, diode parallel circuits trigger by the coil of forward diode in series D2 and relay K 2 and differential concatenation and relay K 1 triggers composes in parallel.
3. according to the drive circuit of the described bistable state two-position three way magnetic valve of claim 1, it is characterized in that the said one-way SCR parallel circuits that is connected between electromagnetic valve coil and the zero line is composed in parallel with the one-way SCR TR1 that oppositely is connected by the one-way SCR TR2 that forward connects.
4. according to the drive circuit of the described bistable state two-position three way magnetic valve of claim 1, it is characterized in that said relay, the diode parallel circuits that is connected between electromagnetic valve coil and the zero line connected to form through the normally opened contact one of the coil triggering of relay K through the normally opened contact two of the coil triggering of relay K and with diode D2 diode connected in parallel D1 by the diode D2 that forward connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087083 CN2831353Y (en) | 2005-09-12 | 2005-09-12 | Drive circuit of double steady-state 2-position 3-way electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087083 CN2831353Y (en) | 2005-09-12 | 2005-09-12 | Drive circuit of double steady-state 2-position 3-way electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2831353Y true CN2831353Y (en) | 2006-10-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087083 Expired - Fee Related CN2831353Y (en) | 2005-09-12 | 2005-09-12 | Drive circuit of double steady-state 2-position 3-way electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2831353Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996886A (en) * | 2012-11-30 | 2013-03-27 | 中国石油集团川庆钻探工程有限公司 | Energy-saving electromagnetic three-way rotating valve for oil field |
| DE202021103065U1 (en) | 2021-06-07 | 2022-09-08 | Ari-Armaturen Albert Richter Gmbh & Co. Kg | Device for operating a valve actuator |
-
2005
- 2005-09-12 CN CN 200520087083 patent/CN2831353Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996886A (en) * | 2012-11-30 | 2013-03-27 | 中国石油集团川庆钻探工程有限公司 | Energy-saving electromagnetic three-way rotating valve for oil field |
| CN102996886B (en) * | 2012-11-30 | 2014-11-26 | 中国石油集团川庆钻探工程有限公司 | Energy-saving electromagnetic three-way rotating valve for oil field |
| DE202021103065U1 (en) | 2021-06-07 | 2022-09-08 | Ari-Armaturen Albert Richter Gmbh & Co. Kg | Device for operating a valve actuator |
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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 |