CN215870066U - Socket control circuit and socket - Google Patents
Socket control circuit and socket Download PDFInfo
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- CN215870066U CN215870066U CN202121290644.0U CN202121290644U CN215870066U CN 215870066 U CN215870066 U CN 215870066U CN 202121290644 U CN202121290644 U CN 202121290644U CN 215870066 U CN215870066 U CN 215870066U
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Abstract
The utility model provides a socket control circuit and a socket, wherein the socket control circuit comprises a detection module, a switch module, a processing module and a reset module; the output end of the detection module is connected with the detection end of the processing module, the output end of the processing module is connected with the control end of the switch module, the switch module is connected between commercial power and a power supply interface of the socket, and the output end of the reset module is connected with the reset end of the processing module; the detection module comprises a leakage detection unit, a voltage detection unit, a temperature detection unit and an overcurrent detection unit. The circuit running state is detected by the detection module, and when the circuit breaks down, the circuit breaking operation is executed, so that the damage of an electric appliance is avoided, and meanwhile, after the fault is eliminated, the socket can be reset through the reset module, so that the power supply is recovered.
Description
Technical Field
The utility model relates to the field of electricity utilization safety, in particular to a socket control circuit and a socket.
Background
Most of the existing sockets only have the function of transmitting electric energy, and when a circuit fails, the circuit is continuously connected with a mains supply, so that the working failure of an electric appliance can be caused, and even the electric appliance is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a socket control circuit and a socket, and aims to solve the problem that an electric appliance is damaged due to circuit faults in the prior art.
In order to achieve the above object, the present invention provides a socket control circuit, which includes a detection module, a switch module, a processing module and a reset module; the output end of the detection module is connected with the detection end of the processing module, the output end of the processing module is connected with the control end of the switch module, the switch module is connected between a mains supply and a power supply interface of the socket, and the output end of the reset module is connected with the reset end of the processing module; the detection module comprises a leakage detection unit, a voltage detection unit, a temperature detection unit and an overcurrent detection unit; wherein:
the processing module is used for receiving the detection signal sent by the detection module and sending a power-off signal to the switch module when the detection signal meets a preset fault condition so as to disconnect the connection between the commercial power and the power supply interface; and the power supply module is also used for sending a connection signal to the switch module when receiving the reset signal sent by the reset module so as to enable the switch module to conduct the connection between the commercial power and the power supply interface.
Optionally, the switch module includes a first resistor, a second resistor, a third resistor, a first switch tube, a second switch tube, a first diode, a second diode, and a relay, where:
the control end of the second switch tube is connected with the negative electrode of the second diode, the positive electrode of the second diode is connected with the output end of the processing module, the input end of the second switch tube is connected with a first power supply through the third resistor, the output end of the second switch tube is grounded through the second resistor, the output end of the second switch tube is also connected with the control end of the first switch tube, the control end of the first switch tube is also grounded through the first resistor, the output end of the first switch tube is grounded, the input end of the first switch tube is connected with a first power supply through a coil of the relay, and a group of contacts of the relay are connected between the commercial power and the power supply interface; the input end of the first switch tube is further connected with the anode of the first diode, and the cathode of the first diode is connected with the first power supply.
Optionally, the first switching tube and the second switching tube are NPN triodes.
Optionally, the leakage detecting unit includes a current sensor, a fourth resistor, a fifth resistor, and a sixth resistor, wherein:
the current sensor is arranged in a penetrating mode on a zero line and a live line of a commercial power, the first output end of the current sensor is connected with the first detection end of the processing module through the fourth resistor, the first output end of the current sensor is connected with the second output end of the current sensor through the fifth resistor, and the second output end of the current sensor is connected with the second detection end of the processing module through the sixth resistor.
Optionally, the leakage detecting unit further includes a first capacitor and a second capacitor, wherein:
the first capacitor is connected between the first detection end of the processing module and ground, and the second capacitor is connected between the second detection end of the processing module and ground.
Optionally, the circuit further comprises a power supply module comprising a voltage sensor and a dc power supply unit, wherein:
the voltage sensor is arranged in the commercial power in a penetrating mode, the output end of the voltage sensor is connected with the input end of the direct-current power supply unit, and the output end of the direct-current power supply unit is connected with the power end of the processing module.
Optionally, the voltage detection unit includes a first operational amplifier, a second operational amplifier, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a third capacitor, a fourth capacitor, a third diode, and a fourth diode, where:
the first end of the seventh resistor is connected with the output end of the voltage sensor, the second end of the seventh resistor is grounded through the eighth resistor, the third capacitor is connected with the eighth resistor in parallel, the second end of the seventh resistor is also connected with the non-inverting input end of the first operational amplifier through the ninth resistor, and the non-inverting input end of the first operational amplifier is also grounded through the tenth resistor; the inverting input end of the first operational amplifier is connected with a second power supply through the eleventh resistor, and the inverting input end of the first operational amplifier is grounded through the twelfth resistor; the output end of the first operational amplifier is connected with the anode of the third diode, and the cathode of the third diode is connected with the third detection end of the processing module;
a first end of the thirteenth resistor is connected with the output end of the voltage sensor, a second end of the thirteenth resistor is grounded through the fifteenth resistor, the fourth capacitor is connected in parallel with the fifteenth resistor, a second end of the thirteenth resistor is also connected with the inverting input end of the second operational amplifier through the sixteenth resistor, and the inverting input end of the second operational amplifier is also grounded through the fourteenth resistor; the non-inverting input end of the second operational amplifier is connected with a second power supply through the seventeenth resistor, and the non-inverting input end of the second operational amplifier is grounded through the eighteenth resistor; the output end of the second operational amplifier is connected with the anode of the fourth diode, and the cathode of the fourth diode is connected with the fourth detection end of the processing module.
Optionally, the temperature detecting unit includes two temperature detecting subunits, an output end of the temperature detecting subunit is connected to a fifth detecting end of the processing module, wherein:
the temperature detection subunit is used for detecting the inlet wire temperature of the commercial power zero line and sending a first temperature signal to the processing module according to the inlet wire temperature so that the processing module judges whether the first temperature signal meets a preset fault condition;
and the other temperature detection subunit is used for detecting the outlet temperature of the power supply interface and sending a second temperature signal to the processing module according to the outlet temperature so that the processing module judges whether the second temperature signal meets a preset fault condition.
Optionally, the over-current detection unit includes an optocoupler, a twenty-second resistor, and a twenty-third resistor, where:
the control positive terminal of opto-coupler passes through twenty second resistance connection fourth power, the control negative terminal of opto-coupler is connected current sensor's first output, the input of opto-coupler passes through twenty third resistance connection fourth power, the input of opto-coupler is connected the sixth sense terminal of processing module, the output ground connection of opto-coupler.
In addition, in order to achieve the above object, the present invention also provides a socket including a housing and a socket control circuit disposed in the housing, the socket control circuit being configured as the socket control circuit described above.
The utility model provides a socket control circuit and a socket, wherein the socket control circuit comprises a detection module, a switch module, a processing module and a reset module; the output end of the detection module is connected with the detection end of the processing module, the output end of the processing module is connected with the control end of the switch module, the switch module is connected between a mains supply and a power supply interface of the socket, and the output end of the reset module is connected with the reset end of the processing module; the detection module comprises a leakage detection unit, a voltage detection unit, a temperature detection unit and an overcurrent detection unit; wherein: the processing module is used for receiving the detection signal sent by the detection module and sending a power-off signal to the switch module when the detection signal meets a preset fault condition so as to disconnect the connection between the commercial power and the power supply interface; and the power supply module is also used for sending a connection signal to the switch module when receiving the reset signal sent by the reset module so as to enable the switch module to conduct the connection between the commercial power and the power supply interface. The circuit running state is detected by the detection module, and when the circuit breaks down, the circuit breaking operation is executed, so that the damage of an electric appliance is avoided, and meanwhile, after the fault is eliminated, the socket can be reset through the reset module, so that the power supply is recovered.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a functional block diagram of an embodiment of a socket control circuit according to the present invention;
FIG. 2 is a circuit diagram of a switch module in the socket control circuit according to the present invention;
FIG. 3 is a circuit diagram of the leakage detecting unit in the socket control circuit according to the present invention;
FIG. 4 is a circuit diagram of a voltage detection unit in the socket control circuit according to the present invention;
FIG. 5 is a circuit diagram of a temperature detection subunit in the socket control circuit according to the present invention;
fig. 6 is a circuit structure diagram of an overcurrent detecting unit in the socket control circuit according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a socket control circuit, which is applied to a socket, and please refer to fig. 1, where fig. 1 is a functional block diagram of an embodiment of the socket control circuit according to the present invention. In this embodiment, the outlet control circuit includes a detection module 100, a switch module 200, a processing module 300, and a reset module 400; the output end of the detection module 100 is connected to the detection end of the processing module 300, the output end of the processing module 300 is connected to the control end of the switch module 200, the switch module 200 is connected between the mains supply and the power supply interface of the socket, and the output end of the reset module 400 is connected to the reset end of the processing module 300; the detection module 100 comprises a leakage detection unit, a voltage detection unit, a temperature detection unit and an overcurrent detection unit; wherein:
the processing module 300 is configured to receive a detection signal sent by the detection module 100, and send a power-off signal to the switch module 200 when the detection signal meets a preset fault condition, so that the switch module 200 disconnects the commercial power from the power supply interface; and is further configured to send a connection signal to the switch module 200 when receiving the reset signal sent by the reset module 400, so that the switch module 200 switches on the connection between the commercial power and the power supply interface.
One end of the socket is connected with commercial power to get electricity, and the other end of the socket is a power supply interface used for supplying power to electric equipment when the electric equipment is connected; it should be noted that the number of the power supply interfaces is one or more, and in the case that the number of the power supply interfaces is multiple, the socket includes a main circuit and a branch circuit, the main circuit is used for taking power from the mains supply, and the branch circuit is used for leading power from the main circuit to the power supply interfaces, the detection module 100 may be disposed on the main circuit, and when a circuit fault of the main circuit is detected, the main circuit is disconnected through the switch module 200 to stop power supply to all the branch circuits; the detection modules 100 can be respectively arranged on each branch, and the switch modules 200 are correspondingly arranged on each branch, so that when the detection modules 100 detect a circuit fault, the switch modules 200 on the corresponding branches are disconnected, and power is continuously supplied to other branches; it is also possible to set the detection module 100 on the main path and each branch path at the same time, set the switch module 200 on the main path and the branch path correspondingly, and disconnect the switch module 200 on the corresponding main path or branch path when the detection module 100 detects a circuit fault.
A user may send a reset signal through the reset module 400 after troubleshooting a circuit failure to restore power to the socket; specifically, the reset module 400 may include a switch or a key, etc.
The present embodiment detects the circuit operation state by setting the detection module 100, and performs the disconnection operation when the circuit fails, thereby avoiding damage to the electrical appliance, and simultaneously, after troubleshooting, the socket can be reset by the reset module 400, thereby recovering the power supply.
Further, referring to fig. 2, the switch module 200 includes a first resistor R1, a second resistor R2, a third resistor R3, a first switch tube Q1, a second switch tube Q2, a first diode D1, a second diode D2, and a relay K1, wherein:
a control end of the second switch tube Q2 is connected to a negative electrode of the second diode D2, a positive electrode of the second diode D2 is connected to an output end of the processing module 300, an input end of the second switch tube Q2 is connected to a first power supply through the third resistor R3, an output end of the second switch tube Q2 is grounded through the second resistor R2, an output end of the second switch tube Q2 is further connected to a control end of the first switch tube Q1, a control end of the first switch tube Q1 is further grounded through the first resistor R1, an output end of the first switch tube Q1 is grounded, an input end of the first switch tube Q1 is connected to a first power supply through a coil of the relay K1, and a set of contacts of the relay K1 are connected between the commercial power and the power supply interface; the input end of the first switch tube Q1 is also connected to the anode of the first diode D1, and the cathode of the first diode D1 is connected to the first power supply.
The first switch tube Q1 and the second switch tube Q2 are NPN triodes. Specifically, the control terminals of the first switch Q1 and the second switch Q2 are bases of NPN transistors, the input terminals of the first switch Q1 and the second switch Q2 are collectors of the NPN transistors, and the output terminals of the first switch Q1 and the second switch Q2 are emitters of the NPN transistors.
The control end of the second switch tube Q2 is switched on when receiving the high level sent by the processing module 300, at the moment, the control end of the first switch tube Q1 is switched on when receiving the high level, at the moment, the coil of the relay K1 is electrified, the normally closed contact of the relay K1 is disconnected, and the normally open contact is closed; the control end of the second switch tube Q2 is turned off when receiving the low level sent by the processing module 300, the control end of the first switch tube Q1 is turned off when receiving the low level, the coil of the relay K1 is powered off, the normally closed contact of the relay K1 is closed, and the normally open contact is opened. It can be understood that, when setting the power-off signal and the connection signal of the processing module 300, the setting may be performed according to the type of the contact of the relay K1, for example, when the normally closed contact of the relay K1 is used to connect the commercial power and the power supply interface, the power-off signal is set to a high level, and the connection signal is set to a low level; when the normally open contact of the relay K1 is used for connecting the commercial power and the power supply interface, the power-off signal is set to be low level, and the connection signal is set to be high level.
Further, referring to fig. 3, the leakage detecting unit includes a current sensor CT, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6, wherein:
current sensor CT wears to locate zero line and the live wire of commercial power, current sensor CT's first output passes through fourth resistance R4 connects processing module 300's first detection end, current sensor CT's first output still passes through fifth resistance R5 connects current sensor CT's second output, current sensor CT's second output passes through sixth resistance R6 connects processing module 300's second detection end.
When the circuit has no leakage fault, the currents flowing through the current sensor CT are equal in magnitude and opposite in direction, and the output signals are zero; when the circuit has a leakage fault, the current sensor CT has a differential current flowing through, and the output signal is not zero; therefore, the processing module 300 can determine whether there is a leakage fault by receiving the electrical signals from the two ends of the current sensor CT.
The leakage detecting unit further comprises a first capacitor C1 and a second capacitor C2, wherein:
the first capacitor C1 is connected between the first sensing terminal of the processing module 300 and ground, and the second capacitor C2 is connected between the second sensing terminal of the processing module 300 and ground.
The first capacitor C1 and the second capacitor C2 are used for filtering the signal.
Further, the circuit further comprises a power supply module comprising a voltage sensor and a dc power supply unit, wherein:
the voltage sensor is arranged in the commercial power in a penetrating mode, the output end of the voltage sensor is connected with the input end of the direct-current power supply unit, and the output end of the direct-current power supply unit is connected with the power end of the processing module 300.
It will be appreciated that the dc power output by the dc power supply unit is also used to power other electrical devices.
Further, referring to fig. 4, the voltage detection unit includes a first operational amplifier U1, a second operational amplifier U2, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, 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 seventeenth resistor R17, an eighteenth resistor R18, a third capacitor C3, a fourth capacitor C4, a third diode D3, and a fourth diode D4, wherein:
a first end of the seventh resistor R7 is connected to the output end of the voltage sensor, a second end of the seventh resistor R7 is grounded through the eighth resistor R8, the third capacitor C3 is connected in parallel with the eighth resistor R8, a second end of the seventh resistor R7 is further connected to the non-inverting input end of the first operational amplifier U1 through the ninth resistor R9, and the non-inverting input end of the first operational amplifier U1 is also grounded through the tenth resistor R10; the inverting input end of the first operational amplifier U1 is connected with a second power supply through the eleventh resistor R11, and the inverting input end of the first operational amplifier U1 is also connected with the ground through the twelfth resistor R12; the output end of the first operational amplifier U1 is connected with the anode of the third diode D3, and the cathode of the third diode D3 is connected with the third detection end of the processing module 300;
a first end of the thirteenth resistor R13 is connected to the output end of the voltage sensor, a second end of the thirteenth resistor R13 is grounded through the fifteenth resistor R15, the fourth capacitor C4 is connected in parallel with the fifteenth resistor R15, a second end of the thirteenth resistor R13 is further connected to the inverting input end of the second operational amplifier U2 through the sixteenth resistor R16, and the inverting input end of the second operational amplifier U2 is further grounded through the fourteenth resistor R14; the non-inverting input end of the second operational amplifier U2 is connected to a second power supply through the seventeenth resistor R17, and the non-inverting input end of the second operational amplifier U2 is also connected to the ground through the eighteenth resistor R18; the output end of the second operational amplifier U2 is connected to the anode of the fourth diode D4, and the cathode of the fourth diode D4 is connected to the fourth detection end of the processing module 300.
The first operational amplifier U1 and the second operational amplifier U2 are used as comparators; the seventh resistor R7 and the eighth resistor R8 are overvoltage sampling resistors; the thirteenth resistor R13 and the fifteenth resistor R15 are undervoltage sampling resistors; REF is reference voltage, and an eleventh resistor R11 and a twelfth resistor R12 are sampling resistors for comparing overvoltage with reference voltage; the seventeenth resistor R17 and the eighteenth resistor R18 are sampling resistors for undervoltage comparison reference voltage. The third capacitor C3 and the fourth capacitor C4 are used for preventing false triggering caused by power supply fluctuation, and play a certain role in resisting interference.
The voltage detection unit judges whether the circuit has overvoltage or undervoltage by comparing the output voltage of the voltage sensor with the reference voltage; when the circuit is in overvoltage, the voltage of the non-inverting input end of the first operational amplifier U1 is higher than that of the inverting input end, and a high level is output to the processing module 300; when the circuit is under-voltage, the voltage of the non-inverting input terminal of the second operational amplifier U2 is higher than the voltage of the inverting input terminal, and outputs a high level to the processing module 300.
Further, referring to fig. 5, the temperature sensing unit includes two temperature sensing sub-units, each of which includes a temperature sensitive resistor RT, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, and a fifth capacitor C5; the first end of the temperature-sensitive resistor RT is connected with a third power supply, the second end of the temperature-sensitive resistor RT is connected with the fifth detection end of the processing module 300 through the twenty-first resistor R21, and the twentieth resistor R20 is connected with the temperature-sensitive resistor RT in parallel; the fifth detection terminal of the processing module 300 is further grounded through the nineteenth resistor R19, and the fifth capacitor C5 is connected in parallel with the nineteenth resistor R19, wherein:
the temperature detection subunit is used for detecting the incoming line temperature of the commercial power zero line and sending a first temperature signal to the processing module 300 according to the incoming line temperature, so that the processing module 300 judges whether the first temperature signal meets a preset fault condition;
and the other temperature detection subunit is configured to detect an outgoing line temperature of the power supply interface, and send a second temperature signal to the processing module 300 according to the outgoing line temperature, so that the processing module 300 determines whether the second temperature signal meets a preset fault condition.
The temperature sensitive resistor RT has different resistance values according to the ambient temperature, and therefore, the processing module 300 can obtain the ambient temperature according to the corresponding relationship between the current and the temperature by detecting the received voltage.
Further, referring to fig. 6, the over-current detection unit includes an optical coupler U3, a twenty-second resistor R22, and a twenty-third resistor R23, wherein:
the positive control end of opto-coupler U3 passes through twenty second resistance R22 connects the fourth power, the control negative end of opto-coupler U3 is connected the first output of current sensor CT, the input of opto-coupler U3 passes through twenty third resistance R23 connects the fourth power, the input of opto-coupler U3 still connects the sixth detection end of processing module 300, the output ground of opto-coupler U3.
When the first output end VD1 of the current sensor CT is at a low level, the optocoupler U3 is turned on, and at this time, the processing module 300 receives a low level signal; when the first output end VD1 of the current sensor CT is at a high level, the optocoupler U3 is not turned on, and at this time, the processing module 300 receives a high level signal, and at this time, an overcurrent fault occurs in the circuit.
The embodiment can realize the detection of electric leakage, overvoltage, temperature and overcurrent of the circuit.
The utility model also provides a socket, which comprises a shell and a socket control circuit, wherein the socket control circuit is arranged in the shell, and the structure of the socket control circuit can refer to the embodiment and is not described again. It should be understood that, since the socket of the present embodiment adopts the technical solution of the socket control circuit, the socket has all the beneficial effects of the socket control circuit.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. The term "comprising", without further limitation, means that the element so defined is not excluded from the group of processes, methods, articles, or systems that include the element. The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The socket control circuit is characterized by comprising a detection module, a switch module, a processing module and a reset module; the output end of the detection module is connected with the detection end of the processing module, the output end of the processing module is connected with the control end of the switch module, the switch module is connected between a mains supply and a power supply interface of the socket, and the output end of the reset module is connected with the reset end of the processing module; the detection module comprises a leakage detection unit, a voltage detection unit, a temperature detection unit and an overcurrent detection unit; wherein:
the processing module is used for receiving the detection signal sent by the detection module and sending a power-off signal to the switch module when the detection signal meets a preset fault condition so as to disconnect the connection between the commercial power and the power supply interface; and the power supply module is also used for sending a connection signal to the switch module when receiving the reset signal sent by the reset module so as to enable the switch module to conduct the connection between the commercial power and the power supply interface.
2. The jack control circuit of claim 1, wherein the switch module includes a first resistor, a second resistor, a third resistor, a first switch tube, a second switch tube, a first diode, a second diode, and a relay, wherein:
the control end of the second switch tube is connected with the negative electrode of the second diode, the positive electrode of the second diode is connected with the output end of the processing module, the input end of the second switch tube is connected with a first power supply through the third resistor, the output end of the second switch tube is grounded through the second resistor, the output end of the second switch tube is also connected with the control end of the first switch tube, the control end of the first switch tube is also grounded through the first resistor, the output end of the first switch tube is grounded, the input end of the first switch tube is connected with a first power supply through a coil of the relay, and a group of contacts of the relay are connected between the commercial power and the power supply interface; the input end of the first switch tube is further connected with the anode of the first diode, and the cathode of the first diode is connected with the first power supply.
3. The socket control circuit according to claim 2, wherein the first and second switching transistors are NPN transistors.
4. The outlet control circuit of claim 1, wherein the leakage detecting unit comprises a current sensor, a fourth resistor, a fifth resistor, and a sixth resistor, wherein:
the current sensor is arranged in a penetrating mode on a zero line and a live line of a commercial power, the first output end of the current sensor is connected with the first detection end of the processing module through the fourth resistor, the first output end of the current sensor is connected with the second output end of the current sensor through the fifth resistor, and the second output end of the current sensor is connected with the second detection end of the processing module through the sixth resistor.
5. The jack control circuit of claim 1, wherein the leakage detection unit further comprises a first capacitor and a second capacitor, wherein:
the first capacitor is connected between the first detection end of the processing module and ground, and the second capacitor is connected between the second detection end of the processing module and ground.
6. The outlet control circuit of claim 1, wherein the circuit further comprises a power module comprising a voltage sensor and a dc power supply unit, wherein:
the voltage sensor is arranged in the commercial power in a penetrating mode, the output end of the voltage sensor is connected with the input end of the direct-current power supply unit, and the output end of the direct-current power supply unit is connected with the power end of the processing module.
7. The socket control circuit according to claim 1, wherein the voltage detection unit comprises a first operational amplifier, a second operational amplifier, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a third capacitor, a fourth capacitor, a third diode, and a fourth diode, wherein:
the first end of the seventh resistor is connected with the output end of the voltage sensor, the second end of the seventh resistor is grounded through the eighth resistor, the third capacitor is connected with the eighth resistor in parallel, the second end of the seventh resistor is also connected with the non-inverting input end of the first operational amplifier through the ninth resistor, and the non-inverting input end of the first operational amplifier is also grounded through the tenth resistor; the inverting input end of the first operational amplifier is connected with a second power supply through the eleventh resistor, and the inverting input end of the first operational amplifier is grounded through the twelfth resistor; the output end of the first operational amplifier is connected with the anode of the third diode, and the cathode of the third diode is connected with the third detection end of the processing module;
a first end of the thirteenth resistor is connected with the output end of the voltage sensor, a second end of the thirteenth resistor is grounded through the fifteenth resistor, the fourth capacitor is connected in parallel with the fifteenth resistor, a second end of the thirteenth resistor is also connected with the inverting input end of the second operational amplifier through the sixteenth resistor, and the inverting input end of the second operational amplifier is also grounded through the fourteenth resistor; the non-inverting input end of the second operational amplifier is connected with a second power supply through the seventeenth resistor, and the non-inverting input end of the second operational amplifier is grounded through the eighteenth resistor; the output end of the second operational amplifier is connected with the anode of the fourth diode, and the cathode of the fourth diode is connected with the fourth detection end of the processing module.
8. The socket control circuit according to claim 1, wherein the temperature detection unit comprises two temperature detection sub-units, and an output terminal of the temperature detection sub-unit is connected to a fifth detection terminal of the processing module, wherein:
the temperature detection subunit is used for detecting the inlet wire temperature of the commercial power zero line and sending a first temperature signal to the processing module according to the inlet wire temperature so that the processing module judges whether the first temperature signal meets a preset fault condition;
and the other temperature detection subunit is used for detecting the outlet temperature of the power supply interface and sending a second temperature signal to the processing module according to the outlet temperature so that the processing module judges whether the second temperature signal meets a preset fault condition.
9. The socket control circuit according to claim 8, wherein the over-current detection unit comprises an opto-coupler, a twenty-second resistor, and a twenty-third resistor, wherein:
the control positive terminal of opto-coupler passes through twenty second resistance connection fourth power, the control negative terminal of opto-coupler is connected current sensor's first output, the input of opto-coupler passes through twenty third resistance connection fourth power, the input of opto-coupler is connected the sixth sense terminal of processing module, the output ground connection of opto-coupler.
10. A socket, comprising a housing and socket control circuitry disposed within the housing, the socket control circuitry configured as the socket control circuitry of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121290644.0U CN215870066U (en) | 2021-06-09 | 2021-06-09 | Socket control circuit and socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121290644.0U CN215870066U (en) | 2021-06-09 | 2021-06-09 | Socket control circuit and socket |
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| Publication Number | Publication Date |
|---|---|
| CN215870066U true CN215870066U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121290644.0U Active CN215870066U (en) | 2021-06-09 | 2021-06-09 | Socket control circuit and socket |
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| CN (1) | CN215870066U (en) |
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