CN2591870Y - Multi-channel compound switch - Google Patents
Multi-channel compound switch Download PDFInfo
- Publication number
- CN2591870Y CN2591870Y CN 02287872 CN02287872U CN2591870Y CN 2591870 Y CN2591870 Y CN 2591870Y CN 02287872 CN02287872 CN 02287872 CN 02287872 U CN02287872 U CN 02287872U CN 2591870 Y CN2591870 Y CN 2591870Y
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- CN
- China
- Prior art keywords
- thyristor
- circuit
- relay
- contact
- road
- 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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Abstract
The utility model discloses a multichannel combination switch, which comprises a control circuit, a thyristor trigger circuit, a drive circuit, an n channel thyristor and an n channel relay, wherein, the control circuit is connected with the thyristor trigger circuit and the drive circuit, one end of the contact of the relay of each channel is respectively connected with one end of the thyristor of each of the relays, the other end of the contact of the relay of each channel is respectively connected with the other end of the thyristor of each of the relays, and the contact of the relay of each channel is externally connected with a wire. The utility model is formed by that the thyristor is used in the process of switching a circuit from an off state to an on state, and the thyristor is used in the process of switching a circuit from an on state to an off state. In the process of switching a circuit from an on state to an off state, a current does not pass through the contact of the relay so as to prolong the service life of the contact. After the circuit is switched on, the current does not pass through the thyristor so as to reduce the phenomenon of heating of a system.
Description
Technical field
The utility model relates to switching device, is a kind of multichannel combination switch.
Background technology
Combination switch is noncontacting switch and contact switch to be combined with each other be used for the control that circuit switches on and off state.The operation principle of this combination switch is: use thyristor at circuit in by the process that is disconnected to connection, by making the conducting of thyristor zero crossing, in the time of can avoiding relay to connect to the impact of circuit, after connecting, realizes in circuit the on-state of circuit again with common contact relay, thus the heating of minimizing system; Equally, also use thyristor at circuit in by the process that is switched to disconnection, disconnect common contact relay earlier, cut off thyristor again, the characteristic of utilizing the thyristor current flows zero crossing to disconnect reduces the contact and disconnects impact to circuit.
Existing combination switch all is the single channel absolute version.Because the used element of combination switch of single channel absolute version is more, volume is bigger, so be difficult to use in the less occasion in space.
Summary of the invention
The purpose of this utility model provides a kind of multichannel combination switch.The two-fold advantage that not only has contactless and common contact switch, and use switching on and off of microprocessor control multichannel electric current, shortened the volume of whole switch.
The technical solution adopted in the utility model is as follows:
It comprises control circuit, thyristor gating circuit, drive circuit, n road thyristor, n road relay; Control circuit links to each other with thyristor gating circuit, drive circuit, one end of n road relay contact links to each other with an end of separately thyristor respectively, the other end of n road relay contact links to each other the external line of each road relay contact with the other end of separately thyristor respectively.
The useful effect that the utlity model has is:
This multichannel combination switch, use thyristor at circuit by being disconnected in the connection process, use thyristor by being switched in the disconnection process, circuit is switched on or switched off the obstructed overcurrent in process repeat circuit contact, prolong contact endurance, after circuit is connected, the obstructed overcurrent of thyristor, minimizing system heating phenomenon.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
As shown in drawings, it comprises control circuit 1, thyristor gating circuit 2, drive circuit 3, n road thyristor T1～Tn, n road relay K 1～Kn; Control circuit 1 links to each other with thyristor gating circuit 2, drive circuit 3, one end of relay K 1～Kn contact, n road links to each other with the end of separately thyristor T1～Tn respectively, the other end of relay K 1～Kn contact, n road links to each other with the other end of separately thyristor T1～Tn respectively, X1-1, X1-2, X2-1, X2-2 ... be respectively each external line in relay K 1～Kn contact, road.
Course of action is as follows: input signal changes when a certain road, for example IN3 changes, change to on-state by off-state, at this moment relay just need carry out corresponding action to K3, T3, sequence of movement is: single-chip microcomputer control thyristor T3 conducting earlier, make relay K 3 closings of contact then, treat that the K3 closing of contact is stable after, thyristor T3 ends.The connection process on this road is finished.
Input signal changes to off-state by on-state when a certain road, and for example IN3 changes, and at this moment relay just need carry out corresponding action to K3, T3, sequence of movement is: thyristor T3 conducting, relay K 3 contacts disconnect then, treat that its contact disconnects fully after, thyristor T3 ends.The disconnection process on this road is finished.
Claims (6)
1. multichannel combination switch, it is characterized in that: it comprises control circuit (1), thyristor gating circuit (2), drive circuit (3), n road thyristor (T1)～(Tn), n road relay (K1)～(Kn); Control circuit (1) links to each other with thyristor gating circuit (2), drive circuit (3), one end of contact, n road relay (K1)～(Kn) links to each other with an end of separately thyristor (T1)～(Tn) respectively, the other end of contact, n road relay (K1)～(Kn) links to each other with the other end of separately thyristor (T1)～(Tn) respectively, (X1-1), (X1-2), (X2-1), (X2-2) ... be respectively each external line in road relay (K1)～(Kn) contact.
2. multichannel combination switch according to claim 1 is characterized in that: said control circuit (1) is made of the monolithic micro-processor interface circuit.
3. multichannel combination switch according to claim 1 is characterized in that: said thyristor gating circuit (2) is the Universal Trigger circuit.
4. multichannel combination switch according to claim 1 is characterized in that: said drive circuit (3) is the general driving circuit, adopts discrete component or integrated drive electronics.
5. multichannel combination switch according to claim 1 is characterized in that: said thyristor, adopt bidirectional thyristor for alternating current circuit, and DC circuit adopts unidirectional thyristor.
6. multichannel combination switch according to claim 1 is characterized in that: said n road thyristor and n road relay, wherein n is not less than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287872 CN2591870Y (en) | 2002-12-03 | 2002-12-03 | Multi-channel compound switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02287872 CN2591870Y (en) | 2002-12-03 | 2002-12-03 | Multi-channel compound switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591870Y true CN2591870Y (en) | 2003-12-10 |
Family
ID=33747983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02287872 Expired - Fee Related CN2591870Y (en) | 2002-12-03 | 2002-12-03 | Multi-channel compound switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591870Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099469A (en) * | 2018-07-20 | 2018-12-28 | 米技电子电器(上海)有限公司 | No cooling fan household electric stove mean power exports high-resolution control method |
-
2002
- 2002-12-03 CN CN 02287872 patent/CN2591870Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099469A (en) * | 2018-07-20 | 2018-12-28 | 米技电子电器(上海)有限公司 | No cooling fan household electric stove mean power exports high-resolution control method |
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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 |