CN214850452U - Integrated solid-state relay with monitoring function - Google Patents
Integrated solid-state relay with monitoring function Download PDFInfo
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- CN214850452U CN214850452U CN202120608009.6U CN202120608009U CN214850452U CN 214850452 U CN214850452 U CN 214850452U CN 202120608009 U CN202120608009 U CN 202120608009U CN 214850452 U CN214850452 U CN 214850452U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 25
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000005693 optoelectronics Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses an integrated solid state relay with monitoring function triggers output load circuit through setting up first photoelectric coupler and second photoelectric coupler series connection and switches on, and second photoelectric coupler switches on the feedback simultaneously and gives alarm output circuit for alarm output circuit switches on the output. The utility model discloses, can be when output load circuit load short circuit or open circuit, the disconnection of warning output circuit output and warning, input control circuit loses control signal immediately and makes first optoelectronic coupler output turn-off and break off output load circuit, the realization is lost at the main power supply, the load is lost, under the condition of relay puncture and load output short circuit, send warning suggestion and disconnection control circuit, in order to reach protection solid state relay, functions such as consumer and personal safety, promote the security and the stability of relay, and circuit structure is simple, the reaction is sensitive swift, high durability and convenient installation, and the suitability is strong.
Description
Technical Field
The utility model relates to a relay technical field, concretely relates to integrated solid state relay with monitoring function.
Background
The solid relay is used as an electronic switch, has no mechanical contact part when being switched on and off, has more reliable work, higher switching speed, no noise and cremation than the common electromagnetic relay, and can be compatible with a CMOS circuit because of smaller control current. Therefore, the solid-state relay has been widely used in computer interface devices, electric furnace heating thermostat systems, remote control systems, industrial automation devices, lighting stage lighting controls, instruments, automatic washing machines, security systems, and switches for power capacitors as compensation for power factors of the grid, and the like. In addition, the material has wide application in chemical industry, explosion prevention, moisture prevention, corrosion prevention or occasions needing to be isolated from strong electricity.
The ac solid-state relay is a relay using silicon controlled rectifier (thyristor) as switch device, and has the advantages of high efficiency, no mechanical noise and abrasion, fast response speed, small volume, long service life, convenient use, etc., but the general solid-state relay has no excessive protection function, and in practical application, when a fault occurs, it is difficult to monitor and distinguish the fault position and reason, and a series of safety problems can be caused.
In view of this, it is urgently needed to improve the structure of the existing solid-state relay so as to monitor whether the relay has a fault or not and improve the effects of stability and safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that current relay lacks monitor control and protect function, the not enough problem of security.
In order to solve the technical problem, the utility model provides an integrated solid state relay with monitoring function, including relay case and circuit board, the circuit includes:
the input control circuit is used for controlling the input of the electric signal and is connected with the power supply through the input control end;
the output load circuit is used for controlling the electric signal to be output to the load output end and is connected to the input control circuit through the first photoelectric coupler and the inductor;
the alarm output circuit is used for controlling an electric signal to be output to an alarm output end and is connected with the input control circuit and the output load circuit through a second photoelectric coupler, the first photoelectric coupler and the second photoelectric coupler are connected in series to trigger the output load circuit, a first light-emitting tube used for displaying a working state is arranged in the input control circuit, and a second light-emitting tube used for displaying an alarm state is arranged in the alarm output circuit.
In the above technical solution, the input control terminal includes a first positive terminal and a first negative terminal, the output load terminal includes a power terminal and a load terminal, and the alarm output terminal includes a second positive terminal and a second negative terminal.
In the above technical solution, in the input control circuit, the first positive terminal is connected to the input terminal of the first photoelectric coupler through the first resistor and the fifth resistor, and then a loop is formed to the first negative terminal through a constant current circuit composed of the first triode, the second triode, the fourth resistor, the sixth resistor, the fourth capacitor, and the fifth capacitor.
In the technical scheme, the output end of the first photoelectric coupler is connected to the inductor and the second photoelectric coupler, the first silicon controlled rectifier and the second silicon controlled rectifier are triggered, and the output load circuit is switched on.
In the above technical solution, the first light emitting tube and the second capacitor and the second resistor form a working state indicating circuit, and the first diode is an anti-reverse protection.
In the technical scheme, the second diode and the third diode are connected in series and then connected in parallel with the load output end to form overvoltage protection, and the sixth capacitor and the seventeenth resistor are connected in series to form a buffer absorption circuit which is connected in parallel with the load output end.
In the above technical solution, the second diode and the third diode are TVS transient suppression diodes.
In the above technical solution, the alarm output circuit further includes a constant current alarm state display circuit composed of an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a fifth triode, a sixth triode, a seventh triode, and the second light emitting tube, and is configured to:
when the fifth triode is cut off and is not conducted, the second luminotron cannot obtain voltage and does not emit light for display.
In the above technical scheme, the input control end and the alarm output end adopt press type wiring terminals.
In the above technical scheme, a transparent protective cover is arranged on the shell.
Compared with the prior art, the utility model discloses an integrated solid state relay with monitoring function, including relay case and circuit board, the circuit includes: the input control circuit is used for controlling the input of the electric signal and is connected with the power supply through the input control end; the output load circuit is used for controlling the electric signal to be output to the load output end and is connected to the input control circuit through the first photoelectric coupler and the inductor; the alarm output circuit is used for controlling the output of an electric signal to an alarm output end and is connected with the input control circuit and the output load circuit through a second photoelectric coupler, a first light-emitting tube for displaying the working state is arranged in the input control circuit, and a second light-emitting tube for displaying the alarm state is arranged in the alarm output circuit, so that when the load of the output load circuit is short-circuited or open-circuited, the output of the alarm output circuit is disconnected to alarm, the input control circuit immediately loses a control signal to turn off the output of the first photoelectric coupler to disconnect the output load circuit, and the alarm prompt is sent and the control circuit is disconnected under the conditions of main power supply loss, load loss, relay breakdown and load output end short-circuit, so that the functions of protecting a solid-state relay, electric equipment, personal safety and the like are achieved, the safety and the stability of the relay are improved, and the circuit structure is simple, the reaction is sensitive and quick, the installation is convenient, and the applicability is strong.
Drawings
Fig. 1 is a schematic circuit diagram of an integrated solid-state relay with a monitoring function according to the present invention;
fig. 2 is a schematic diagram of the wiring diagram of the integrated solid-state relay with monitoring function according to the present invention;
fig. 3 is a schematic diagram of the series connection application wiring of the integrated solid-state relay with monitoring function of the present invention;
fig. 4 is a schematic diagram of an integrated solid-state relay with a monitoring function according to the present invention;
fig. 5 is a structural diagram of the transparent protective cover of the integrated solid-state relay with monitoring function according to the present invention.
Detailed Description
The utility model provides an integrated solid state relay with monitoring function can monitor whether trouble of relay, promotes stability and security. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 5, the utility model provides an integrated solid-state relay with monitoring function, including relay case 1 and circuit board, the circuit includes:
the input control circuit is used for controlling the input of the electric signal and is connected with the power supply through the input control end;
the output load circuit is used for controlling an electric signal to be output to a load output end and is connected to the input control circuit through a first photoelectric coupler U1 and an inductor L1;
the alarm output circuit is used for controlling an electric signal to be output to an alarm output end and is connected with the input control circuit and the output load circuit through a second photoelectric coupler U2, the first photoelectric coupler U1 and the second photoelectric coupler U2 are connected in series to trigger the output load circuit, a first light-emitting tube LED1 used for displaying the working state is arranged in the input control circuit, and a second light-emitting tube LED2 used for displaying the alarm state is arranged in the alarm output circuit.
In the embodiment, the first photoelectric coupler U1 and the second photoelectric coupler U2 are arranged to be connected in series to trigger the output load circuit to be conducted, meanwhile, the second photoelectric coupler U2 is conducted and fed back to the alarm output circuit, so that the alarm circuit is conducted and output, when the load of the output load circuit is short-circuited or opened, the output of the alarm output circuit is disconnected to give an alarm, the input control circuit immediately loses a control signal to turn off the output of the first photoelectric coupler U1 to disconnect the output load circuit, and under the conditions of main power loss, load loss, relay breakdown and load output end short circuit, an alarm prompt is sent out and the control circuit is disconnected, so that the functions of protecting a solid-state relay, electric equipment, personal safety and the like are achieved, the safety and the stability of the relay are improved, and the circuit structure is simple, the response is sensitive and fast, the installation is convenient and the applicability is strong.
Specifically, when the relay works normally, when a signal is input at the input control end of the input control circuit, the first photoelectric coupler U1 is electrified and conducted, the second photoelectric coupler U2 is connected in series to trigger the silicon controlled rectifier of the output load circuit, so that the load output circuit is conducted, and meanwhile, the second photoelectric coupler U2 is electrified and conducted to feed back to the alarm output circuit, so that the alarm circuit is conducted and output; when the load of the output load circuit is short-circuited or open-circuited, no voltage signal is provided at the input end of the second photoelectric coupler U2, so that the output of the alarm output circuit is disconnected to alarm, and the input control circuit immediately loses the control signal to turn off the output of the first photoelectric coupler U1 to disconnect the output load circuit. When the fault is relieved, the alarm stops and the normal operation is automatically recovered, so that the purposes of monitoring, controlling, protecting user equipment and the like are achieved.
The alarm output circuit can be connected in series with an input circuit of the input control circuit to realize normal cycle operation of the solid-state relay.
In an embodiment of the present invention, preferably, the input control terminal includes a first positive terminal 5 and a first negative terminal 4, the output load terminal includes a power terminal 2 and a load terminal 3, and the alarm output terminal includes a second positive terminal 7 and a second negative terminal 6.
In an embodiment of the present invention, preferably, in the input control circuit, the first positive terminal 5 is connected to the input terminal of the first photocoupler U1 through the first resistor R1 and the fifth resistor R5, and then forms a loop to the first negative terminal 4 after passing through the constant current circuit composed of the first triode V1, the second triode V2, the fourth resistor R4, the sixth resistor R6, the fourth capacitor C4, and the fifth capacitor C5.
In this embodiment, in the input control circuit, the constant voltage circuit including the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6, the first capacitor C1, the second capacitor C2, the fourth capacitor C4, the fifth capacitor C5, the first light emitting diode LED1, the first diode D1, the first transistor V1, the second transistor V2 and the first photocoupler U1 is included, when a signal is received at the input control end, the voltage of the first positive terminal 5 of the input control end is passed through the first resistor R1, the fifth resistor R5 to the input end of the first photocoupler U1, and then passed through the first transistor V1, the second transistor V1, the fourth resistor R1, the sixth resistor R1, the fourth capacitor C1, the fifth capacitor C1, the negative circuit C364, the first light emitting diode R1 and the second light emitting diode R1, the first diode D1 is protection against reverse connection.
In an embodiment of the present invention, preferably, the output end of the first photocoupler U1 is connected to the inductor L1 and the second photocoupler U2, and triggers the first thyristor Q1 and the second thyristor Q2 to turn on the output load circuit.
In an embodiment of the present invention, preferably, the second diode D2 and the third diode D3 are connected in series and then connected in parallel with the load output end to form an overvoltage protection, and the sixth capacitor C6 and the seventeenth resistor Rx are connected in series to form a buffer absorption circuit and connected in parallel with the load output end.
In an embodiment of the present invention, preferably, the second diode D2 and the third diode D3 are TVS transient suppression diodes.
In an embodiment of the present invention, preferably, the alarm output circuit further includes a constant current alarm state display circuit composed of an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a fifth triode V5, a sixth triode V6, a seventh triode V7, and a second light emitting tube LED2, and is configured to:
when the fifth triode V5 is turned off and is not turned on, the second light-emitting tube LED2 cannot obtain voltage non-light-emitting display.
In the embodiment, after the input end of the second photoelectric coupler is electrified and conducted, the output end is immediately conducted, the base electrode of the fourth triode V4 is in a high level, the fourth triode V4 and the fifth triode V5 are not conducted, the base electrode of the third triode V3 is in a high level, the third triode V3 is immediately conducted, the alarm output is connected in series in the input control circuit, the input control circuit has a signal, and the solid-state relay normally operates.
When the main power supply at the load end is lost, the load is lost, the silicon controlled rectifier is broken down and the load output end is short-circuited, the input end of the second photoelectric coupler U2 cannot obtain a feedback signal, the output end is in a cut-off state, the base of the fourth triode V4 is in a low level, the fourth triode V4 and the fifth triode V5 are sequentially conducted, the third triode V3 is cut off without alarm output, the signal of the input control circuit is cut off, the relay stops working, meanwhile, the fifth triode V5 in the alarm circuit is conducted to trigger the second light-emitting tube LED2 to emit light to display an indication alarm state, and when the output load end of the relay returns to be normal, the alarm is automatically relieved.
In an embodiment of the present invention, preferably, the input control terminal and the alarm output terminal are push type connection terminals.
In this embodiment, set up to push type binding post through the binding post with input control end and warning output, under the operational environment of installation, the dismantlement binding post that can be frequent, saved operating time, promoted electrician's work efficiency.
In one embodiment of the present invention, a transparent protective cover 8 is preferably disposed on the housing 1.
In this embodiment, through being provided with transparent safety cover 8 on shell 1, be favorable to promoting the security that the relay used, simultaneously, the operating condition of relay is convenient for observe when using to transparent structure, and transparent safety cover 8 sets up with shell 1 upper surface lock joint.
As shown in fig. 1, the input control terminal of the integrated solid-state relay with monitoring function of the present invention includes a first positive terminal 5 and a first negative terminal 4;
the input control circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a fourth capacitor C4, a fifth capacitor C5, a first light-emitting tube LED1, a first diode D1, a first triode V1, a second triode V2 and a first photocoupler U1;
the output load circuit comprises a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a seventeenth resistor Rx, an inductor L1, a sixth capacitor C6, a first silicon controlled rectifier Q1 and a second silicon controlled rectifier Q2;
the output load end comprises a power end 2 and a load end 3;
the alarm output circuit comprises a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventh capacitor C7, an eighth capacitor C8, a third triode V3, a fourth triode V4, a fifth triode V5, a sixth triode V6, a seventh triode V7, a second light-emitting tube LED2 and a second photoelectric coupler U2;
and the alarm output end comprises a second positive end 7 and a second negative end 6.
The utility model discloses an integrated solid state relay with monitoring function, including relay case and circuit board, the circuit includes: the input control circuit is used for controlling the input of the electric signal and is connected with the power supply through the input control end; the output load circuit is used for controlling the electric signal to be output to the load output end and is connected to the input control circuit through the first photoelectric coupler and the inductor; the alarm output circuit is used for controlling the output of an electric signal to an alarm output end and is connected with the input control circuit and the output load circuit through a second photoelectric coupler, a first light-emitting tube for displaying the working state is arranged in the input control circuit, and a second light-emitting tube for displaying the alarm state is arranged in the alarm output circuit, so that when the load of the output load circuit is short-circuited or open-circuited, the output of the alarm output circuit is disconnected to alarm, the input control circuit immediately loses a control signal to turn off the first output of the photoelectric coupler to disconnect the output load circuit, and the alarm prompt is sent and the control circuit is disconnected under the conditions of main power supply loss, load loss, relay breakdown and load output end short-circuit, so that the functions of protecting a solid-state relay, electric equipment, personal safety and the like are achieved, the safety and the stability of the relay are improved, and the circuit structure is simple, the reaction is sensitive and quick, the installation is convenient, and the applicability is strong.
In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (10)
1. An integrated solid state relay having a monitoring function comprising a relay housing and a circuit board, the circuit comprising:
the input control circuit is used for controlling the input of the electric signal and is connected with the power supply through the input control end;
the output load circuit is used for controlling the electric signal to be output to the load output end and is connected to the input control circuit through the first photoelectric coupler and the inductor;
the alarm output circuit is used for controlling an electric signal to be output to an alarm output end and is connected with the input control circuit and the output load circuit through a second photoelectric coupler, the first photoelectric coupler and the second photoelectric coupler are connected in series to trigger the output load circuit, a first light-emitting tube used for displaying a working state is arranged in the input control circuit, and a second light-emitting tube used for displaying an alarm state is arranged in the alarm output circuit.
2. The integrated solid-state relay with monitoring function according to claim 1, wherein the input control terminal comprises a first positive terminal and a first negative terminal, the load output terminal comprises a power terminal and a load terminal, and the alarm output terminal comprises a second positive terminal and a second negative terminal.
3. The integrated solid-state relay with monitoring function according to claim 2, wherein in the input control circuit, the first positive terminal is connected to the input terminal of the first photocoupler through a first resistor and a fifth resistor, and then a loop is formed to the first negative terminal through a constant current circuit composed of a first triode, a second triode, a fourth resistor, a sixth resistor, a fourth capacitor and a fifth capacitor.
4. The integrated solid-state relay with monitoring function according to claim 1, wherein the output terminal of the first photoelectric coupler is connected to the inductor and the second photoelectric coupler, and triggers the first thyristor and the second thyristor to turn on the output load circuit.
5. The integrated solid-state relay with monitoring function according to claim 3, wherein the first light emitting tube, the second capacitor and the second resistor constitute an operation status indicating circuit, and the first diode is an anti-reverse protection.
6. The integrated solid-state relay with the monitoring function according to claim 4, wherein a second diode and a third diode are connected in series and then connected in parallel with the load output end to form an overvoltage protection, and a sixth capacitor and a seventeenth resistor are connected in series to form a buffer absorption circuit and connected in parallel with the load output end.
7. The integrated solid-state relay with monitoring function according to claim 6, wherein said second diode and said third diode are TVS transient suppression diodes.
8. The integrated solid-state relay with monitoring function according to claim 1, wherein the alarm output circuit further comprises a constant current alarm state display circuit composed of an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor and a sixteenth resistor, a fifth triode, a sixth triode and a seventh triode, and the second light emitting tube, and is configured to:
when the fifth triode is cut off and is not conducted, the second luminotron cannot obtain voltage and does not emit light for display.
9. The integrated solid-state relay with monitoring function according to claim 1, wherein said input control terminal and said alarm output terminal are push type terminals.
10. The integrated solid-state relay with monitoring function according to claim 1, wherein a transparent protective cover is disposed on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608009.6U CN214850452U (en) | 2021-03-25 | 2021-03-25 | Integrated solid-state relay with monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608009.6U CN214850452U (en) | 2021-03-25 | 2021-03-25 | Integrated solid-state relay with monitoring function |
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| Publication Number | Publication Date |
|---|---|
| CN214850452U true CN214850452U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120608009.6U Active CN214850452U (en) | 2021-03-25 | 2021-03-25 | Integrated solid-state relay with monitoring function |
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| Country | Link |
|---|---|
| CN (1) | CN214850452U (en) |
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2021
- 2021-03-25 CN CN202120608009.6U patent/CN214850452U/en active Active
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Effective date of registration: 20240514 Address after: 325603 Wenzhou Bridge Industrial Park, Beibeixiang Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG XURUI ELECTRONIC Co.,Ltd. Country or region after: China Address before: 325000 No.3, Yandangshan Road, Wenzhou Bridge Industrial Park, beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: Cai Xuqiang Country or region before: China |
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