CN218006563U - Solid-state relay indicator lamp circuit - Google Patents
Solid-state relay indicator lamp circuit Download PDFInfo
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- CN218006563U CN218006563U CN202221650733.6U CN202221650733U CN218006563U CN 218006563 U CN218006563 U CN 218006563U CN 202221650733 U CN202221650733 U CN 202221650733U CN 218006563 U CN218006563 U CN 218006563U
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Abstract
The patent relates to the field of indicating lamp circuits, in particular to a solid-state relay indicating lamp circuit, which comprises an input module, an isolation module and an output module, wherein the input end of the input module is electrically connected with an external power supply, the isolation module is electrically connected between the input module and the output module, the output end of the output module is electrically connected with an external output loop, the output module comprises a silicon controlled branch, the input end of the silicon controlled branch is connected with an output indicating module in series, the output indicating module detects the state of the output loop, an output detecting module is connected between the silicon controlled branch of the output module and the isolation module in series, and a light emitting diode D3 of the output detecting module detects the output loop, so that the state of the output loop can be clearly indicated; the light emitting diode D2 of the input module detects an input excitation signal, and the two light emitting diodes respectively detect an input end and an output end, so that the input module is more suitable for practical use and has higher practicability.
Description
Technical Field
The patent relates to the field of indicator light circuits, in particular to a solid-state relay indicator light circuit.
Background
A conventional solid-state relay is an actuator. In practical application, an indicator light on one side of an input end is driven to indicate through an input control excitation signal, so that the state of the current solid-state relay is indicated. No matter whether the output end of the product has a valid signal of the loop indicator lamp, the signal only has a logical relation with input excitation, and has no relation with the output end, so that the signal is not in accordance with actual use.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a solid-state relay indicator lamp circuit, which can solve the problem that the indicator lamp is only driven by excitation signals and can not represent the working state of the output end.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a solid-state relay pilot lamp circuit, its characterized in that, includes input module, isolation module and output module, input module's input and external power source electric connection, isolation module electric connection is between input module and output module, output module's output and external output return circuit electric connection, output module includes the silicon controlled rectifier branch road, the input series connection of silicon controlled rectifier branch road has output indication module, output indication module detects the state in output return circuit.
Further, the output indication module comprises diodes D4-D7, a light emitting diode D3, a resistor R10, a resistor R11 and a triode Q3, the resistor R11 and the light emitting diode D3 are connected in parallel between the base and the collector of the triode Q3, the anode of the light emitting diode D3 is electrically connected with the collector of the triode Q3, the resistor R10 is electrically connected with the base and the emitter of the triode Q3, the emitter of the triode Q3 is electrically connected with the anode of the diode D4 and the anode of the diode D5, the cathode of the diode D4 is electrically connected with the output end of the isolation module and the anode of the diode D6, the cathode of the diode D5 is electrically connected with the input end of the thyristor branch and the anode of the diode D7, and the cathodes of the diode D6 and the diode D7 are electrically connected with the collector of the triode Q3.
Further, the isolation module includes optoelectronic coupler A1, optoelectronic coupler A1's pin 1 and pin 2 and input module's output electric connection, optoelectronic coupler A1's pin 3 and pin 4 and output module's input electric connection.
Further, the input module comprises a diode D1, a light emitting diode D2, a triode Q1, a triode Q2, resistors R1-R4, an interface 3+ and an interface 4-; the interface 3+ and the interface 4-are electrically connected with an external power supply, the interface 3+ is electrically connected with the anode of the diode D1, the cathode of the diode D1 is electrically connected with the resistor R2, one end of the resistor R1 and the anode of the light-emitting diode D2, the other end of the resistor R2 is electrically connected with the pin 1 of the photoelectric coupler A1, the other end of the resistor R1 is electrically connected with the base of the triode Q2 and the collector of the triode Q1, the cathode of the light-emitting diode D2 is electrically connected with one end of the resistor R4, the pin 2 of the photoelectric coupler A1 is electrically connected with the other end of the resistor R4 and the collector of the triode Q2, the emitter of the triode Q2 is electrically connected with one end of the resistor R3 and the base of the triode Q1, and the other end of the resistor R3 and the emitter of the triode Q1 are both electrically connected with the interface 4-electrically.
Further, the triode Q1 and the triode Q2 are both NPN transistors.
Further, output module still includes resistance R7 and resistance R9, electric capacity C1, piezo-resistor M1 and interface 1, interface 2, optoelectronic coupler A1's pin 3 and resistance R7's one end electric connection, resistance R7's the other end and the input electric connection of output indication module, output indication module's output and the input electric connection on silicon controlled rectifier branch road, the input and the output on silicon controlled rectifier branch road respectively with interface 2, interface 1 electric connection, optoelectronic coupler A1's pin 4 and the output electric connection on silicon controlled rectifier branch road, electric capacity C1 and resistance 9 establish ties in proper order between interface 2 and interface 1, piezo-resistor M1 electric connection is between interface 2 and interface 1.
Further, the silicon controlled rectifier branch road includes bidirectional thyristor T1 and resistance R8, bidirectional thyristor T1's pin 1 and interface 2 electric connection, bidirectional thyristor T1's pin 2 and optoelectronic coupler A1's pin 4 and resistance R8's one end electric connection, resistance R8's the other end and bidirectional thyristor T1's pin 3 and interface 1 electric connection.
The invention has the beneficial effects that:
in the scheme, an output detection module is connected in series between a silicon controlled branch and an isolation module of the output module, and a light emitting diode D3 of the output detection module detects an output loop and is only controlled by the output loop to be turned on and off, so that the state of the output loop can be clearly indicated; the light emitting diode D2 of the input module detects an input excitation signal, and the two light emitting diodes respectively detect an input end and an output end, so that the input module is more suitable for practical use and has higher practicability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a circuit diagram of a solid state relay indicator light circuit of the present invention.
Description of the main elements
1. An input module;
2. an isolation module;
3. an output module; 301. a thyristor branch circuit; 302. and outputting an indication module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention.
Please refer to fig. 1, the utility model provides a solid state relay indicator lamp circuit, including input module 1, keep apart module 2 and output module 3, input module 1's input and external power source electric connection, keep apart 2 electric connection of module between input module 1 and output module 3, output module 3's output and external output return circuit electric connection, output module 3 includes silicon controlled rectifier branch road 301, silicon controlled rectifier branch road 301's input is established ties and is had output instruction module 302, output instruction module 302 electric connection is between silicon controlled rectifier branch road 301 and isolation module 2, output instruction module 302 detects output return circuit's state.
The output indicating module 302 includes diodes D4-D7, a light emitting diode D3, a resistor R10, a resistor R11 and a triode Q3, the resistor R11 and the light emitting diode D3 are connected in parallel between a base and a collector of the triode Q3, an anode of the light emitting diode D3 is electrically connected to a collector of the triode Q3, the resistor R10 is electrically connected to the base and an emitter of the triode Q3, an emitter of the triode Q3 is electrically connected to the diode D4 and an anode of the diode D5, a cathode of the diode D4 is electrically connected to an output terminal of the isolating module 2 and an anode of the diode D6, a cathode of the diode D5 is electrically connected to an input terminal of the thyristor branch 301 and an anode of the diode D7, and cathodes of the diode D6 and the diode D7 are electrically connected to the collector of the triode Q3. When an effective loop exists at the output end, the thyristor branch circuit 301 triggers current to pass through the output indicating module 302, and controls the light-emitting diode D3 to be on, so that the loop condition of the output end is detected, otherwise, even if an input excitation signal exists, the light-emitting diode D3 cannot be turned on without the effective output loop, and the LED lighting circuit is more suitable for practical use.
The input module 1 comprises a diode D1, a light emitting diode D2, a triode Q1, a triode Q2, resistors R1-R4, an interface 3+ and an interface 4-; interface 3+ and interface 4-and external power source electric connection, interface 3+ and diode D1's positive pole electric connection, diode D1's negative pole and resistance R2, resistance R1's one end and emitting diode D2's positive pole electric connection, resistance R2's the other end and optoelectronic coupler A1's pin 1 electric connection, resistance R1's the other end and triode Q2's base and triode Q1's collecting electrode electric connection, emitting diode D2's negative pole and resistance R4's one end electric connection, optoelectronic coupler A1's pin 2 and resistance R4's the other end and triode Q2's collecting electrode electric connection, triode Q2's projecting pole and resistance R3's one end and triode Q1's base electric connection, resistance R3's the other end and triode Q1's projecting pole all with interface 4-electric connection. The triode Q1 and the triode Q2 are both NPN tubes. The input excitation signal enters the input module 1 through the interface 3+, and the light emitting diode D2 indicates the input excitation signal.
In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a solid state relay pilot lamp circuit, its characterized in that includes input module, isolation module and output module, input module's input and external power source electric connection, isolation module electric connection is between input module and output module, output module's output and outside output circuit electric connection, output module includes the silicon controlled rectifier branch road, the input of silicon controlled rectifier branch road is established ties there is output indication module, output indication module detects the state in output circuit.
2. The solid state relay indicator light circuit of claim 1, wherein: the output indicating module comprises diodes D4-D7, a light emitting diode D3, a resistor R10, a resistor R11 and a triode Q3, the resistor R11 and the light emitting diode D3 are connected between the base and the collector of the triode Q3 in parallel, the anode of the light emitting diode D3 is electrically connected with the collector of the triode Q3, the resistor R10 is electrically connected with the base and the emitter of the triode Q3, the emitter of the triode Q3 is electrically connected with the anodes of the diodes D4 and D5, the cathode of the diode D4 is electrically connected with the output end of the isolating module and the anode of the diode D6, the cathode of the diode D5 is electrically connected with the input end of the thyristor branch circuit and the anode of the diode D7, and the cathodes of the diodes D6 and D7 are electrically connected with the collector of the triode Q3.
3. The solid state relay indicator light circuit of claim 1, wherein: the isolation module comprises a photoelectric coupler A1, a pin 1 and a pin 2 of the photoelectric coupler A1 are electrically connected with the output end of the input module, and a pin 3 and a pin 4 of the photoelectric coupler A1 are electrically connected with the input end of the output module.
4. The solid state relay indicator light circuit of claim 3, wherein: the input module comprises a diode D1, a light emitting diode D2, a triode Q1, a triode Q2, resistors R1-R4, an interface 3+ and an interface 4-; the interface 3+ and the interface 4-are electrically connected with an external power supply, the interface 3+ is electrically connected with the anode of the diode D1, the cathode of the diode D1 is electrically connected with the resistor R2, one end of the resistor R1 and the anode of the light-emitting diode D2, the other end of the resistor R2 is electrically connected with the pin 1 of the photoelectric coupler A1, the other end of the resistor R1 is electrically connected with the base of the triode Q2 and the collector of the triode Q1, the cathode of the light-emitting diode D2 is electrically connected with one end of the resistor R4, the pin 2 of the photoelectric coupler A1 is electrically connected with the other end of the resistor R4 and the collector of the triode Q2, the emitter of the triode Q2 is electrically connected with one end of the resistor R3 and the base of the triode Q1, and the other end of the resistor R3 and the emitter of the triode Q1 are both electrically connected with the interface 4-electrically.
5. The solid state relay indicator light circuit of claim 4, wherein: and the triode Q1 and the triode Q2 are both NPN tubes.
6. The solid state relay indicator light circuit of claim 3, wherein: output module still includes resistance R7 and resistance R9, electric capacity C1, piezo-resistor M1 and interface 1, interface 2, optoelectronic coupler A1's pin 3 and resistance R7's one end electric connection, resistance R7's the other end and the input electric connection of output indication module, the output of output indication module and the input electric connection of silicon controlled rectifier branch road, the input and the output of silicon controlled rectifier branch road respectively with interface 2, interface 1 electric connection, optoelectronic coupler A1's pin 4 and the output electric connection of silicon controlled rectifier branch road, electric capacity C1 and resistance 9 establish ties in proper order between interface 2 and interface 1, piezo-resistor M1 electric connection is between interface 2 and interface 1.
7. The solid state relay indicator light circuit of claim 6, wherein: the silicon controlled rectifier branch road includes bidirectional thyristor T1 and resistance R8, bidirectional thyristor T1's pin 1 and interface 2 electric connection, bidirectional thyristor T1's pin 2 and optoelectronic coupler A1's pin 4 and resistance R8's one end electric connection, resistance R8's the other end and bidirectional thyristor T1's pin 3 and interface 1 electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221650733.6U CN218006563U (en) | 2022-06-28 | 2022-06-28 | Solid-state relay indicator lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221650733.6U CN218006563U (en) | 2022-06-28 | 2022-06-28 | Solid-state relay indicator lamp circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218006563U true CN218006563U (en) | 2022-12-09 |
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ID=84312967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221650733.6U Active CN218006563U (en) | 2022-06-28 | 2022-06-28 | Solid-state relay indicator lamp circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218006563U (en) |
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2022
- 2022-06-28 CN CN202221650733.6U patent/CN218006563U/en active Active
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Address after: No. 2, Unit 514, No. 13, Longhe Erli, Jimei District, Xiamen City, Fujian Province, 361000 Patentee after: Xiamen Essames Electronic Technology Co.,Ltd. Address before: No. 2, Unit 514, No. 13, Longhe Erli, Jimei District, Xiamen City, Fujian Province, 361000 Patentee before: Xiamen Saimis Electronic Technology Co.,Ltd. |