CN201118538Y - Dual indicator indication solid relay - Google Patents
Dual indicator indication solid relay Download PDFInfo
- Publication number
- CN201118538Y CN201118538Y CNU2007201280217U CN200720128021U CN201118538Y CN 201118538 Y CN201118538 Y CN 201118538Y CN U2007201280217 U CNU2007201280217 U CN U2007201280217U CN 200720128021 U CN200720128021 U CN 200720128021U CN 201118538 Y CN201118538 Y CN 201118538Y
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Abstract
The utility model relates to a relay, in particular to a dual-light indication solid-state relay which is provided with a constant current circuit and with indicator lights arranged at an input end and an output end. The solid-state relay is composed of an input circuit, an insulating circuit and an output circuit; wherein the input circuit includes a constant current circuit for ensuring the current of a control circuit to be controlled within a certain range and a green LED for displaying the input state; the input circuit is connected with the insulating circuit which is used for electric insulating the input light and the output light; the output circuit is connected with the insulating circuit; the output circuit includes a resistance-capacitance absorber circuit and a red LED, wherein the resistance-capacitance absorber circuit is used for preventing the superhigh instant current at the output end from damaging the thyristor element in the output circuit and the red LED is used for displaying the output state. The solid-state relay is provided with the state indicators, thus the operator can clearly judge the operating state of the relay.
Description
Technical field
The utility model relates to a kind of relay, and particularly a kind of constant-current circuit that is provided with, input and output are provided with two lamp indication solid-state relays of indicator light.
Background technology
Solid-state relay is a kind of when input variable reaches certain value, the automatic control device that great-jump-forward changes will take place in output variable, it is a kind of mechanical movement that do not have, the relay that does not contain moving parts, solid-state relay is made up of input circuit, buffer circuit and output circuit three parts, utilize large power triode, power field effect pipe, that the switching characteristic of devices such as individual event controllable silicon and bidirectional triode thyristor reaches is contactless, switch on and off to no-spark controlled circuit.But present solid-state relay does not have the state indicating structure, and the operator can not judge the operating state of relay very clearly, causes misoperation easily.
The utility model content
It is good that technical problem to be solved in the utility model provides a kind of electric isolating effect, and antijamming capability is strong, two lamps indication solid-state relays of the clear and definite display working condition of energy.
For solving the problems of the technologies described above, the utility model is realized as follows: described in the utility model pair of lamp indication solid-state relay is made up of input circuit, buffer circuit and output circuit; Input circuit comprises a constant-current circuit and a green LED, the Current Control that constant-current circuit makes control circuit within the specific limits, green LED shows input state; Input circuit links to each other with buffer circuit, and buffer circuit is isolated input and output photoelectricity; Output circuit links to each other with buffer circuit, output circuit comprises resistance capaciting absorpting circuit and a red light emitting diodes, resistance capaciting absorpting circuit prevents that the immediate current of output is excessive and damages thyristor in the output circuit that red light emitting diodes shows output state.
Constant-current circuit in the described input circuit comprises two triode Q1 and Q2, and the emitter of triode Q1 is electrically connected with the base stage of triode Q2, and the collector electrode of triode Q2 is electrically connected with the base stage of triode Q1.
Described buffer circuit comprises optoelectronic switch U2, and the pin 1 of U2 links to each other with input circuit with pin 2, and pin 4 links to each other with output circuit with pin 6.
Described output circuit comprises controllable silicon Q3 and Q4, and resistance capaciting absorpting circuit is made of resistance R 9 and capacitor C series connection.
The output of described output circuit is provided with instrument transformer, and red light emitting diodes is connected with instrument transformer.
Good effect of the present utility model is: the utility model is respectively equipped with light-emitting diode as status indicator lamp in input circuit and output circuit, when signal is imported, green light is bright, when output has electric current to pass through, inductor by special use is connected on the load two ends and produces voltage and make red light bright, after status indicator lamp was set, the operator can judge the operating state of relay very clearly.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model preferred implementation
Fig. 2 is the circuit diagram of preferred implementation shown in Figure 1
Among the figure, 1 input circuit, 2 buffer circuits, 3 output circuits
4 constant-current circuits, 5 resistance capaciting absorpting circuits, 6 green LEDs
7 red light emitting diodes, 8 instrument transformers
Embodiment
As shown in Figure 1 and Figure 2, described in the utility model pair of lamp indication solid-state relay is made up of input circuit 1, buffer circuit 2 and output circuit 3; Input circuit 1 comprises a constant-current circuit 4 and a green LED 6, the Current Control that constant-current circuit 4 makes control circuit within the specific limits, green LED 6 shows input states; Input circuit 1 links to each other with buffer circuit 2, and buffer circuit 2 is isolated input and output photoelectricity; Output circuit 3 links to each other with buffer circuit 2, output circuit 3 comprises resistance capaciting absorpting circuit 5 and a red light emitting diodes 7, resistance capaciting absorpting circuit 5 prevents that the immediate current of output is excessive and damages thyristor in the output circuit that red light emitting diodes 7 shows output states.
Constant-current circuit 4 in the described input circuit 1 comprises two triode Q1 and Q2, and the emitter of triode Q1 is electrically connected with the base stage of triode Q2, and the collector electrode of triode Q2 is electrically connected with the base stage of triode Q1.
Described buffer circuit 2 comprises optoelectronic switch U2, and the pin 1 of U2 links to each other with input circuit with pin 2, and pin 4 links to each other with output circuit 3 with pin 6.
Described output circuit 3 comprises controllable silicon Q3 and Q4, and the resistance capaciting absorpting circuit 5 in the output circuit 3 is made of resistance R 9 and capacitor C series connection.
The output of described output circuit 1 is provided with instrument transformer 8, and red light emitting diodes 7 is connected with instrument transformer 8.
The course of work of the present utility model is as follows: when the input of control voltage, red light is bright, optoelectronic switch U2 opens, make silicon controlled trigger end G1 and G2 produce trigger current, thereby make controllable silicon Q3 and Q4 conducting, be that S becomes path with V-arrangement, output conducting also point gives a green light, and realizes the less big voltage in input voltage control output end.
Claims (5)
1. two lamp indication solid-state relays are made up of input circuit (1), buffer circuit (2) and output circuit (3), it is characterized in that: input circuit (1) comprises a constant-current circuit (4) and a green LED (6), the Current Control that constant-current circuit (4) makes control circuit within the specific limits, green LED (6) shows input state; Input circuit (1) links to each other with buffer circuit (2), and buffer circuit (2) is isolated input and output photoelectricity; Output circuit (3) links to each other with buffer circuit (2), output circuit (3) comprises a resistance capaciting absorpting circuit (5) and a red light emitting diodes (7), resistance capaciting absorpting circuit (5) prevents that the immediate current of output is excessive and damages thyristor in the output circuit that red light emitting diodes (7) shows output state.
2. according to claim 1 pair of lamp indication solid-state relay, it is characterized in that: the constant-current circuit (4) in the described input circuit (1) comprises two triodes (Q1) and (Q2), the emitter of triode (Q1) is electrically connected with the base stage of triode (Q2), and the collector electrode of triode (Q2) is electrically connected with the base stage of triode (Q1).
3. according to claim 1 pair of lamp indication solid-state relay, it is characterized in that: described buffer circuit (2) comprises optoelectronic switch (U2), and pin 1 (U2) links to each other with input circuit with pin 2, and pin 4 links to each other with output circuit (3) with pin 6.
4. according to claim 1 pair of lamp indication solid-state relay is characterized in that: the resistance capaciting absorpting circuit (5) in the described output circuit (3) is made of resistance (R9) and electric capacity (C) series connection.
5. according to claim 1 pair of lamp indication solid-state relay, it is characterized in that: the output of described output circuit (3) is provided with instrument transformer (8), and red light emitting diodes (7) is connected with instrument transformer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201280217U CN201118538Y (en) | 2007-08-03 | 2007-08-03 | Dual indicator indication solid relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201280217U CN201118538Y (en) | 2007-08-03 | 2007-08-03 | Dual indicator indication solid relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118538Y true CN201118538Y (en) | 2008-09-17 |
Family
ID=39993132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201280217U Expired - Lifetime CN201118538Y (en) | 2007-08-03 | 2007-08-03 | Dual indicator indication solid relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118538Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142832A (en) * | 2010-01-29 | 2011-08-03 | 无锡市固特控制技术有限公司 | High-efficiency energy-saving large-power solid relay module |
| CN104570857A (en) * | 2014-12-19 | 2015-04-29 | 江南大学 | Intelligent control system for alternating current solid-state relay |
-
2007
- 2007-08-03 CN CNU2007201280217U patent/CN201118538Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142832A (en) * | 2010-01-29 | 2011-08-03 | 无锡市固特控制技术有限公司 | High-efficiency energy-saving large-power solid relay module |
| CN104570857A (en) * | 2014-12-19 | 2015-04-29 | 江南大学 | Intelligent control system for alternating current solid-state relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Gold Control Technology Co., Ltd. Assignor: Yin Chenzhong Contract record no.: 2010320000384 Denomination of utility model: Double-lamp indicating solid-state relay Granted publication date: 20080917 License type: Exclusive License Record date: 20100412 |
|
| DD01 | Delivery of document by public notice |
Addressee: Yin Chenzhong Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Yin Chenzhong Document name: Notification of Termination of Patent Right |
|
| EM01 | Change of recordation of patent licensing contract |
Change date: 20130411 Contract record no.: 2010320000384 Assignee after: Jiangsu Gold Electronical Control Technology Co., Ltd. Assignee before: Wuxi Gold Control Technology Co., Ltd. |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| CX01 | Expiry of patent term |