CN203812016U - Safe connection and disconnection control circuit for temperature control jade bed controller - Google Patents
Safe connection and disconnection control circuit for temperature control jade bed controller Download PDFInfo
- Publication number
- CN203812016U CN203812016U CN201420200476.5U CN201420200476U CN203812016U CN 203812016 U CN203812016 U CN 203812016U CN 201420200476 U CN201420200476 U CN 201420200476U CN 203812016 U CN203812016 U CN 203812016U
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- CN
- China
- Prior art keywords
- optocoupler
- bidirectional triode
- load
- power supply
- triode thyristor
- 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
Links
- 239000010977 jade Substances 0.000 title claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 30
- 230000001960 triggered effect Effects 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 5
- 230000003287 optical effect Effects 0.000 abstract 5
- 229910052710 silicon Inorganic materials 0.000 abstract 5
- 239000010703 silicon Substances 0.000 abstract 5
- 101100365087 Arabidopsis thaliana SCRA gene Proteins 0.000 description 9
- 101000668165 Homo sapiens RNA-binding motif, single-stranded-interacting protein 1 Proteins 0.000 description 9
- 102100039692 RNA-binding motif, single-stranded-interacting protein 1 Human genes 0.000 description 9
- 101150105073 SCR1 gene Proteins 0.000 description 9
- 101100134054 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) NTG1 gene Proteins 0.000 description 9
- 230000035939 shock Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Temperature (AREA)
Abstract
The utility model relates to a temperature controller which belongs to the technical field of temperature controlling products. The safe connection and disconnection control circuit for temperature control jade bed controller is provided with a connection and disconnection circuit each in a load and between a live wire and a zero wire of an external alternating power supply. Each connection and disconnection circuit comprises a bi-direction silicon controlled rectifier and an optical coupler. The first anode of the bi-direction silicon controlled rectifier is connected with one output end of the optical coupler. The controlling pole of the bi-direction silicon controlled rectifier is connected to the other output end of the optical coupler through a resistor. The first anodes of the two bi-direction silicon controlled rectifiers are connected respectively with the live wire and the zero wire of an external power supply. The second anodes of the two bi-direction silicon controlled rectifiers are connected respectively with the two ends of the load. The input ends of the two optical couplers are connected with an optical power supply in parallel. The control circuit of the utility model provides increased safety of a temperature control jade bed. Even the live wire and the zero wire of a power supply are reversely connected, the zero wire and the live wire at two ends of a load can be fully disconnected from an external power supply, therefore, avoiding safety hazard.
Description
Technical field
The utility model relates to a kind of temperature controller, particularly a kind of safe on-off control circuit of the temperature controller for temperature-control jade bed.
Background technology
The power-off control circuit of the existing temperature controller for temperature-control jade bed, generally adopt the mode that a line cuts off circuit that disconnects, rather than cut off live wire and zero line simultaneously, once the zero line in circuit and live wire reversal connection, in the situation that only disconnecting zero line, load is connected with live wire, and still in electriferous state, error shock danger is very large.
Summary of the invention
The purpose of this utility model, is to provide a kind of safe on-off control circuit of the temperature controller for temperature-control jade bed, although solved existing circuit, disconnects, and load is connected with live wire, still in electriferous state, and the defect that error shock danger is very large.
The utility model provides a kind of safe on-off control circuit of the temperature controller for temperature-control jade bed, between the live wire of load and external ac power source and zero line, respectively accesses an on-off control circuit; Described on-off control circuit comprises bidirectional triode thyristor and optocoupler, and the first anode of bidirectional triode thyristor connects an output terminal of optocoupler, and the control utmost point of bidirectional triode thyristor connects another output terminal of optocoupler by resistance, and the input end of two optocouplers also connects optocoupler power supply; The first anode of described two bidirectional triode thyristors connects respectively live wire and the zero line of external ac power source, and the second anode of two bidirectional triode thyristors connects respectively the two ends of load; When optocoupler and optocoupler power connection, trigger pip is provided to the control utmost point of bidirectional triode thyristor, make bidirectional triode thyristor triggering and conducting, i.e. two ends and the external ac power source of load are all connected; When optocoupler and the disconnection of optocoupler power supply, close the trigger pip of the control utmost point of bidirectional triode thyristor, bidirectional triode thyristor cannot be triggered, i.e. two ends and the external ac power source of load all disconnect.
Owing to having adopted above structure, the controller of temperature-control jade bed connects after AC power, no matter whether reversal connection of zero line and live wire, when optocoupler and the disconnection of optocoupler power supply, zero line and the live wire of load two ends and external ac power source all disconnect, and avoid occurring that load one end and zero line disconnect, the situation that the other end is still connected with live wire, thereby prevented the danger of getting an electric shock, improved security.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment workflow schematic diagram of the present utility model.
Wherein: P1-optocoupler power supply, P2-external ac power source, RL-load.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model is a kind of safe on-off control circuit of the temperature controller for temperature-control jade bed, mainly comprises two optocoupler IC1 and IC2, two bidirectional triode thyristor SCR1 and SCR2; The first anode T1 of bidirectional triode thyristor SCR1 connects the live wire L of external ac power source P2 and the 4th pin of optocoupler IC1, one end of the control utmost point G connecting resistance R1 of bidirectional triode thyristor SCR1, the 6th pin of another termination optocoupler IC1 of resistance R 1, the second anode T2 of bidirectional triode thyristor SCR1 connects one end of load RL; The first anode T1 of bidirectional triode thyristor SCR2 connects the zero line N of external ac power source P2 and the 4th pin of optocoupler IC2, one end of the control utmost point G connecting resistance R2 of bidirectional triode thyristor SCR2, the 6th pin of another termination optocoupler IC2 of resistance R 2, the second anode T2 of bidirectional triode thyristor SCR2 connects the other end of load RL; The 1st pin of optocoupler IC1 and IC2 and the 2nd pin also connect optocoupler power supply P1.By controlling switching on and off of optocoupler IC1 and IC2 and optocoupler power supply P1, control bidirectional triode thyristor SCR1 and SCR2 switch on and off, and when having controlled the live wire L of load RL two ends and external ac power source P2 and zero line N, switch on and off.
The temperature controller of temperature-control jade bed meets external ac power source P2, connect optocoupler IC1 and IC2 and optocoupler power supply P1, provide trigger pip to make bidirectional triode thyristor SCR1 and SCR2 triggering and conducting to the control utmost point G of bidirectional triode thyristor SCR1 and SCR2, load RL two ends all switch on power; Disconnect optocoupler IC1 and IC2 and optocoupler power supply P1, the trigger pip of closing the control utmost point G of bidirectional triode thyristor SCR1 and SCR2 cannot trigger bidirectional triode thyristor SCR1 and SCR2, i.e. the whole deenergizations in load RL two ends.
Claims (1)
1. for a safe on-off control circuit for the temperature controller of temperature-control jade bed, it is characterized in that: between the live wire of load and external ac power source and zero line, respectively access an on-off control circuit;
Described on-off control circuit comprises bidirectional triode thyristor and optocoupler, and the first anode of bidirectional triode thyristor connects an output terminal of optocoupler, and the control utmost point of bidirectional triode thyristor connects another output terminal of optocoupler by resistance, and the input end of two optocouplers also connects optocoupler power supply;
The first anode of described two bidirectional triode thyristors connects respectively live wire and the zero line of external ac power source, and the second anode of two bidirectional triode thyristors connects respectively the two ends of load;
When optocoupler and optocoupler power connection, trigger pip is provided to the control utmost point of bidirectional triode thyristor, make bidirectional triode thyristor triggering and conducting, i.e. two ends and the external ac power source of load are all connected;
When optocoupler and the disconnection of optocoupler power supply, close the trigger pip of the control utmost point of bidirectional triode thyristor, bidirectional triode thyristor cannot be triggered, i.e. two ends and the external ac power source of load all disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200476.5U CN203812016U (en) | 2014-04-23 | 2014-04-23 | Safe connection and disconnection control circuit for temperature control jade bed controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420200476.5U CN203812016U (en) | 2014-04-23 | 2014-04-23 | Safe connection and disconnection control circuit for temperature control jade bed controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812016U true CN203812016U (en) | 2014-09-03 |
Family
ID=51450745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420200476.5U Expired - Fee Related CN203812016U (en) | 2014-04-23 | 2014-04-23 | Safe connection and disconnection control circuit for temperature control jade bed controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812016U (en) |
-
2014
- 2014-04-23 CN CN201420200476.5U patent/CN203812016U/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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Jiaxing City, Zhejiang province Jiashan County town 314100 cloud cloud temple road No. 576 Patentee after: JIAXING FUQIDUO THERMAL BED Co.,Ltd. Address before: Jiaxing City, Zhejiang province 314100 Jiashan County town of Linghai Dayun Road No. 288 building 1-2 Patentee before: JIAXING FUQIDUO THERMAL BED Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |