CN213634822U - Intelligent double-control switch - Google Patents
Intelligent double-control switch Download PDFInfo
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- CN213634822U CN213634822U CN202022321510.2U CN202022321510U CN213634822U CN 213634822 U CN213634822 U CN 213634822U CN 202022321510 U CN202022321510 U CN 202022321510U CN 213634822 U CN213634822 U CN 213634822U
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Abstract
The utility model discloses an intelligent double-control switch, which comprises a power input port, an AC-DC power supply, a wireless communication module, a switch element, a first output port and a second output port, and also comprises a signal detection module, wherein the switch element comprises a single-pole double-throw switch consisting of a fixed end, a normally closed contact and a normally open contact; the fixed end is connected with the power input port, the normally closed contact is connected with the first output port, the normally open contact is connected with the second output port, the signal detection module comprises a first input port, a second input port and an output port, the first input port and the second input port are respectively connected with the first live wire output port and the second live wire output port, the output port is connected with the wireless communication module, and the wireless communication module is connected with the control end of the switch element. The intelligent double-control switch is simple in structure, can be matched with a common double-control switch for use, and is used for synchronously controlling the state of the current switch of the mobile terminal APP through the wireless communication module, so that the control is more convenient and reliable.
Description
Technical Field
The utility model relates to an intelligence double control switch.
Background
Most of the existing intelligent double-control switches comprise a wireless communication module and two switches, and the wireless communication module is respectively communicated with the two switches to realize double control, but the intelligent double-control switch has a complex structure and cannot be matched with a common double-control switch to use, so that the use cost of a user is increased; part of intelligent double control switches can be matched with common double control switches for use, but the load detection problem exists, and the compatibility of the LED lamp is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligence double control switch for solve among the prior art the unable problem of using with ordinary double control switch collocation of intelligence double control switch.
The technical scheme of the utility model is realized like this:
the utility model aims at providing a two accuse switches of intelligence, including power input port, AC-DC power, wireless communication module, switching element, first output port and second output port, the AC-DC power provides low voltage direct current, its characterized in that for wireless communication module: the power supply comprises a power supply input port, a power supply output port, a first output port, a second output port, a switch element and a control module, wherein the power supply input port comprises a live wire input port and a zero line input port, the first output port comprises a first live wire output port and a first zero line output port, the second output port comprises a second live wire output port and a second zero line output port, and the switch element comprises a single-pole double-throw switch consisting of a fixed end, a normally closed contact and a normally open contact; the fixed end is connected with the live wire input port, the normally closed contact is connected with the first live wire output port, the normally open contact is connected with the second live wire output port, zero line input port and first zero line output port, the second zero line output port is connected, the signal detection module comprises a first input port, a second input port and an output port, the first input port, the second input port is respectively connected with the first live wire output port and the second live wire output port, the output port is connected with the first input end of the wireless communication module, and the first output end of the wireless communication module is connected with the control end of the switch element.
The intelligent double-control switch further comprises a first rectifying unit and a second rectifying unit, wherein the input end of the first rectifying unit is connected with the first output port, the input end of the second rectifying unit is connected with the second output port, and the output end of the first rectifying unit is connected with the input end of the AC-DC power supply after being connected with the output end of the second rectifying unit in parallel.
The signal detection module comprises a first resistor, a second resistor, a third resistor, a fourth resistor, an operational amplifier and a single chip microcomputer, wherein one end of the first resistor is connected with a first live wire output port as a first input port of the signal detection module, the other end of the first resistor is connected with a negative input end of the operational amplifier, one end of the second resistor is connected with a second live wire output port as a second input port of the signal detection module, the other end of the second resistor is connected with a positive input end of the operational amplifier, an output end of the operational amplifier is connected with an input serial port of the single chip microcomputer through the third resistor, an output serial port of the single chip microcomputer is connected with the fourth resistor, and the other end of the fourth resistor is connected with a first input end of the wireless communication module as an output port of the signal detection module.
The signal detection module further comprises a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor, wherein the sixth resistor and the seventh resistor are connected in series between the low-voltage direct current end and the ground end of the circuit board, and the negative input end of the operational amplifier is connected with the junction of the sixth resistor and the seventh resistor; the eighth resistor and the ninth resistor are connected in series between the low-voltage direct current end and the ground end of the circuit board, and the positive input end of the operational amplifier is connected with the node of the eighth resistor and the ninth resistor; a forward diode and a backward diode are also connected in parallel between the positive input end and the negative input end of the operational amplifier.
The intelligent double-control switch further comprises a key and an indicator light, the key is connected with the second input end of the wireless communication module, and the indicator light is connected with the second output end of the wireless communication module.
The switch element is a relay, the switch element comprises the single-pole double-throw switch and a coil, one end of the coil is connected with the low-voltage direct-current end, and the other end of the coil is used as a control end of the switch element and connected with the first output end of the wireless communication module.
Compared with the prior art, the utility model, there is following advantage:
1. the intelligent double-control switch comprises a power input port, an AC-DC power supply, a wireless communication module, a switch element, a first output port and a second output port, wherein the AC-DC power supply provides low-voltage direct current for the wireless communication module, and the intelligent double-control switch is characterized in that: the power supply comprises a power supply input port, a power supply output port, a first output port, a second output port, a switch element and a control module, wherein the power supply input port comprises a live wire input port and a zero line input port, the first output port comprises a first live wire output port and a first zero line output port, the second output port comprises a second live wire output port and a second zero line output port, and the switch element comprises a single-pole double-throw switch consisting of a fixed end, a normally closed contact and a normally open contact; the fixed end is connected with the live wire input port, the normally closed contact is connected with the first live wire output port, the normally open contact is connected with the second live wire output port, zero line input port and first zero line output port, the second zero line output port is connected, the signal detection module comprises a first input port, a second input port and an output port, the first input port, the second input port is respectively connected with the first live wire output port and the second live wire output port, the output port is connected with the first input end of the wireless communication module, and the first output end of the wireless communication module is connected with the control end of the switch element. The intelligent double-control switch has the advantages that the switch element with the single-pole double-throw is used for replacing two independent switches, the structure is simpler, the intelligent double-control switch can be matched with a common double-control switch for use, the signal detection module detects whether the current load state is opened or closed, meanwhile, the state of the current switch of the mobile terminal APP is synchronously given through the wireless communication module, and the control is more convenient and reliable.
2. Other advantages of the present invention will be described in detail in the examples section.
Drawings
Fig. 1 is a circuit block diagram of an intelligent dual-control switch according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a signal detection module in the intelligent duel control switch;
FIG. 3 is a schematic diagram of a single control dimming application of the intelligent dual control switch;
FIG. 4 is a schematic diagram of another single-control dimming application of the intelligent dual-control switch;
FIG. 5 is a schematic diagram of an implementation of bi-level dimming for the intelligent bi-level switch;
fig. 6 is a schematic diagram of another embodiment of the intelligent on-off dimmer switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown IN fig. 1 to fig. 2, the present embodiment provides an intelligent dual-control switch, which includes a power input port AC _ IN, an AC-DC power supply 108, a wireless communication module 102, a switching element 101, a first output port OUT1, and a second output port OUT2, where the AC-DC power supply 108 provides low-voltage direct current for the wireless communication module 102, and is characterized IN that: the power supply circuit also comprises a signal detection module 103, the power input port AC _ IN comprises a live wire input port L and a zero line input port N, the first output port OUT1 comprises a first live wire output port OUT1+ and a first zero line output port OUT1-, the second output port OUT2 comprises a second live wire output port OUT2+ and a second zero line output port OUT2-, the switch element 101 comprises a single-pole double-throw switch consisting of a fixed end 1011, a normally closed contact 1012 and a normally open contact 1013; the fixed end 1011 is connected to the live wire input port L, the normally closed contact 1012 is connected to the first live wire output port Out1+, the normally open contact 1013 is connected to the second live wire output port Out2+, the zero line input port N is connected to the first zero line output port Out1-, the second zero line output port Out2-, the signal detection module 103 includes a first input port 1031, a second input port 1302, and an output port 1303, the first input port 1031 and the second input port 1302 are connected to the first live wire output port Out1+, the second live wire output port Out2+, the output port 1303 is connected to the first input port Load _ Check of the wireless communication module 102, and the first output port 1021 of the wireless communication module 102 is connected to the control port 1014 of the switching element 101. The use takes single-pole double-throw's switch element 101 to replace two independent switches, and the structure is simpler, and the two accuse switches of intelligence can use with ordinary two accuse switch collocation, and signal detection module 103 detects the current load state and opens or close, still gives the state of mobile terminal APP current switch in step through wireless communication module 102 simultaneously, and control is more convenient and reliable.
The intelligent double-control switch further comprises a first rectifying unit 104 and a second rectifying unit 105, wherein the input end of the first rectifying unit 104 is connected with the first output port OUT1, the input end of the second rectifying unit 105 is connected with the second output port OUT2, and the output end of the first rectifying unit 104 is connected with the input end of the AC-DC power supply 108 after being connected with the output end of the second rectifying unit 105 in parallel. The intelligent double-control switch can also be used as a single control, only a zero line needs to be distinguished when the intelligent double-control switch is used as the single control, and an input live wire and a load live wire can be randomly connected at three ports, namely a power input port AC _ IN, a first output port OUT1 and a second output port OUT 2.
The signal detection module 103 comprises a first resistor R2, a second resistor R6, and a third resistor R4, one end of the first resistor R2 serving as a first input port 1031 of the signal detection module 103 is connected to the first fire wire output port Out1+, the other end of the first resistor R2 is connected to the negative input end of the operational amplifier U2, one end of the second resistor R6 serving as a second input port 1302 of the signal detection module 103 is connected to the second fire wire output port Out2+, the other end of the second resistor R6 is connected to the positive input end of the operational amplifier U2, the output end of the operational amplifier U2 is connected to the input serial port PA0 of the single chip U1 through the third resistor R4, the output serial port PA6 of the single chip U1 is connected to the fourth resistor R9, and the other end of the fourth resistor R8 serving as the output port 1303 of the signal detection module 103 is connected to the first input end Load _ Check of the wireless communication module 102.
The signal detection module 103 further includes a sixth resistor R7, a seventh resistor R3, an eighth resistor R5, and a ninth resistor R8, wherein the sixth resistor R7 and the seventh resistor R3 are connected in series between the low-voltage dc terminal Vcc and the ground terminal GND of the circuit board, and the negative input terminal of the operational amplifier U2 is connected to the junction of the sixth resistor R7 and the seventh resistor R3; the eighth resistor R5 and the ninth resistor R8 are connected in series between the low-voltage direct-current terminal Vcc and the ground terminal GND of the circuit board, and the positive input end of the operational amplifier U2 is connected with the junction point of the eighth resistor R5 and the ninth resistor R8; a forward diode D1 and a backward diode D2 are also connected in parallel between the positive input terminal and the negative input terminal of the operational amplifier U2.
The intelligent dual-control switch further comprises a key 106 and an indicator light 107, wherein the key 106 is connected with the second input end 1022 of the wireless communication module 102, and the indicator light 107 is connected with the second output end 1023 of the wireless communication module 102. The wireless communication module 102 may also receive a trigger signal of the key 106 to control the switching element 101 to be turned on or off.
The switch element 101 is a relay, the switch element 101 includes the single-pole double-throw switch and a coil, one end of the coil is connected to the low-voltage dc terminal Vcc, and the other end of the coil is connected to the first output terminal 1021 of the wireless communication module 102 as the control terminal 1014 of the switch element 101.
The implementation circuit of the single-path control of the intelligent double-control switch is specifically described as follows:
as shown IN fig. 3, a user can access AC power at the power input port AC _ IN and access the load lamp LED1 at the first output port OUT1, at this time, the first rectifying unit 104 supplies power to the AC-DC power supply 108, and the operational amplifier U2 of the signal detection module 103 obtains whether the load circuit is connected or not by detecting a voltage difference between the first output port OUT1 and the second output port OUT 2. If the fixed end 1011 of the switch element 101 is connected with the normally closed contact 1012, the load lamp LED1 is turned on, the signal detection module 103 outputs a high level to the wireless communication module 102, and the wireless communication module 102 receives a signal and then controls the state of the indicator lamp 107 to be on, and simultaneously reports the current state of the APP switch through the cloud end; if the fixed end 1011 of the switch element 101 is connected with the normally open contact 1013, the load lamp LED1 goes out, the signal detection module 103 outputs a pulse signal to the wireless communication module 102, and the wireless communication module 102 receives the signal and then controls the state of the indicator lamp 107 to be off, and simultaneously reports the state of the current switch of the APP through the cloud end.
Similarly, the AC power may be connected to the power input port AC _ IN, and the load lamp may be connected to the second output port OUT2, at this time, the second rectifying unit 105 supplies power to the AC-DC power supply 108, and the operational amplifier U2 of the signal detection module 103 obtains whether the load circuit is connected or not by detecting a voltage difference between the first output port OUT1 and the second output port OUT 2.
Fig. 4 shows another application implementation of the intelligent double-control switch, the types of interfaces used by the power input port AC _ IN, the first output port OUT1 and the second output port OUT2 are different, and a user can use the input port and the output port interchangeably as required, that is, the user can access AC power at the first output port OUT1 and access the load lamp LED2 outside the power input port AC _ IN. At this time, the first rectifying unit 104 rectifies the alternating current accessed from the first output port OUT1 and supplies power to the AC-DC power supply 108, the operational amplifier U2 of the signal detection module 103 obtains whether the load circuit is connected or not by detecting a voltage difference between the first output port OUT1 and the second output port OUT2, and the wireless communication module 102 receives a signal sent by the signal detection module 103 and then controls the state of the switch indicator light 107 and reports the state of the current switch of the APP through the cloud terminal.
Of course, the user may use the load lamp LED2 by inputting AC power at the second output port OUT2 and inputting AC power at the power input port AC _ IN.
The following describes the implementation circuit of the two-way control of the intelligent double-control switch specifically:
as shown IN fig. 5, a user accesses AC power at the power input port AC _ IN, and accesses a dual-control switch circuit including a dual-control switch SPDT and a load lamp LED3 outside the first output port OUT1 and the second output port OUT2, specifically: the first live wire output port Out1+ is connected with the normally closed end NC of the double-control switch SPDT, the second live wire output port Out2+ is connected with the normally open end NO of the double-control switch SPDT, the common end COM of the double-control switch SPDT is connected with one end of the load lamp LED3, and the other end of the load lamp LED3 is connected with the first zero line output port Out 1-and the second zero line output port Out 2-.
When the fixed end 1011 of the single-pole double-throw switch is connected to the normally closed contact 1012 and the normally closed end NC of the double-control switch SPDT is connected to the common end COM, the first output port OUT1 is communicated with the loop formed by the load lamp LED3, and the load lamp LED3 is turned on. At this time, the operational amplifier U2 of the signal detection module 103 outputs a high level to the wireless communication module 102 by detecting a voltage difference between the first output port OUT1 and the second output port OUT2, the wireless communication module 102 receives a signal to obtain that the load lamp LED3 is in an on state, and the wireless communication module 102 controls the indicator light 107 to be in an on state.
When the fixed end 1011 of the single-pole double-throw switch is connected with the normally open contact 1013 and the normally closed end NC of the double-control switch SPDT is connected with the common end COM, the loops formed by the first output port OUT1 and the second output port OUT2 and the load lamp LED3 are not communicated, and the load lamp LED3 is not turned on. At this time, the operational amplifier U2 of the signal detection module 103 outputs a pulse signal to the wireless communication module 102 by detecting a voltage difference between the first output port OUT1 and the second output port OUT2, the wireless communication module 102 receives the signal and obtains a state that the load lamp LED3 is turned off, and the wireless communication module 102 controls the indicator light 107 to be turned off.
When the stationary end 1011 of the single-pole double-throw switch is connected to the normally open contact 1013 and the normally open end NO of the double-throw switch SPDT is connected to the common end COM, the second output port OUT2 is connected to the loop formed by the load lamp LED3, and the load lamp LED3 is lit. At this time, the operational amplifier U2 of the signal detection module 103 outputs a high level to the wireless communication module 102 by detecting a voltage difference between the first output port OUT1 and the second output port OUT2, the wireless communication module 102 receives a signal to obtain that the load lamp LED3 is in an on state, and the wireless communication module 102 controls the indicator light 107 to be in an on state.
When the stationary end 1011 of the single-pole double-throw switch is connected to the normally closed contact 1012 and the normally open end NO of the double-control switch SPDT is connected to the common end COM, the loops formed by the first output port OUT1 and the second output port OUT2 and the load lamp LED3 are not connected, and the load lamp LED3 is not turned on. At this time, the operational amplifier U2 of the signal detection module 103 outputs a pulse signal to the wireless communication module 102 by detecting a voltage difference between the first output port OUT1 and the second output port OUT2, the wireless communication module 102 receives the signal and obtains a state that the load lamp LED3 is turned off, and the wireless communication module 102 controls the indicator light 107 to be turned off.
The signal detection module 103 is reliable in detection, and the intelligent double-control switch is convenient to use.
As another application of the intelligent dual-control switch, as shown in fig. 6, a user may further use two intelligent dual-control switches in series, and for convenience of description, the two intelligent dual-control switches are respectively defined as a first dual-control switch 100 and a second dual-control switch 100', specifically: the AC power is connected to the power input port AC _ IN of the first dual-controlled switch 100, the first output port OUT1 of the first dual-controlled switch 100 is connected to the first output port OUT1 'of the second dual-controlled switch 100', the second output port OUT2 of the first dual-controlled switch 100 is connected to the second output port OUT2 'of the second dual-controlled switch 100', and the power input port AC _ IN 'of the second dual-controlled switch 100' is externally connected to the load lamp LED 4. The second double-control switch replaces the double-control switch SPDT, and two paths of remote control are realized through the two intelligent double-control switches.
When the dead end 1011 of the first dual-control switch 100 is connected to the normally-closed contact 1012 and the dead end 1011 'of the second dual-control switch 100' is connected to the normally-closed contact 1012 ', the first output ports OUT1 and OUT 1' are connected to the loop formed by the load lamp LED4, and the load lamp LED4 is turned on. The wireless communication module 102 receives the high level signal output by the signal detection module 103, the wireless communication module 102 ' receives the high level signal output by the signal detection module 103 ', and the wireless communication module 102 ' report to the APP through the cloud terminal at the same time that the state of the APP is on.
When the fixed end 1011 of the first dual-control switch 100 is connected with the normally closed contact 1012 and the fixed end 1011 ' of the second dual-control switch 100 ' is connected with the normally open contact 1013 ', the two output circuits are not communicated, and the load lamp LED4 is not turned on. The wireless communication module 102 receives the pulse signal output by the signal detection module 103, the wireless communication module 102 ' receives the pulse signal output by the signal detection module 103 ', and the wireless communication module 102 ' report to the APP on/off state through the cloud terminal at the same time.
When the fixed end 1011 of the first dual-control switch 100 is connected to the normally-open contact 1013 and the fixed end 1011 'of the second dual-control switch 100' is connected to the normally-open contact 1013 ', the second output ports OUT2 and OUT 2' are communicated with the loop formed by the load lamp LED4, and the load lamp LED4 is turned on. The wireless communication module 102 receives the high level signal output by the signal detection module 103, the wireless communication module 102 ' receives the high level signal output by the signal detection module 103 ', and the wireless communication module 102 ' report to the APP through the cloud terminal at the same time that the state of the APP is on.
When the fixed end 1011 of the first dual-control switch 100 is connected to the normally open contact 1013 and the fixed end 1011 ' of the second dual-control switch 100 ' is connected to the normally closed contact 1012 ', both output circuits are not connected, and the load lamp LED4 is not lit. The wireless communication module 102 receives the pulse signal output by the signal detection module 103, the wireless communication module 102 ' receives the pulse signal output by the signal detection module 103 ', and the wireless communication module 102 ' report to the APP on/off state through the cloud terminal at the same time.
Just so can realize that two intelligent switch's switch pilot lamp state is unanimous, also realizes two intelligent switch on APP's on-off state unanimous simultaneously. The detection signal is simultaneously output to high level, which indicates that the load lamp is turned on.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. An intelligent dual-control switch comprising a power input port AC _ IN, an AC-DC power supply (108), a wireless communication module (102), a switching element (101), a first output port OUT1 and a second output port OUT2, the AC-DC power supply (108) providing low voltage DC power to the wireless communication module (102), characterized IN that: the power supply circuit also comprises a signal detection module (103), the power input port AC _ IN comprises a live wire input port L and a zero line input port N, the first output port OUT1 comprises a first live wire output port OUT1+ and a first zero line output port OUT1-, the second output port OUT2 comprises a second live wire output port OUT2+ and a second zero line output port OUT2-, and the switching element (101) comprises a single-pole double-throw switch consisting of a fixed end (1011), a normally closed contact (1012) and a normally open contact (1013); the signal detection module (103) comprises a first input port (1031), a second input port (1302) and an output port (1303), wherein the first input port (1031) and the second input port (1302) are respectively connected with a first live wire output port Out1+ and a second live wire output port Out2+, the output port (1303) is connected with a first input end Load _ Check of the wireless communication module (102), and a first output end (1021) of the wireless communication module (102) is connected with a control end (1014) of the switch element (101).
2. The intelligent dual-control switch according to claim 1, wherein: the power supply further comprises a first rectifying unit (104) and a second rectifying unit (105), wherein the input end of the first rectifying unit (104) is connected with the first output port OUT1, the input end of the second rectifying unit (105) is connected with the second output port OUT2, and the output end of the first rectifying unit (104) is connected with the input end of the AC-DC power supply (108) after being connected with the output end of the second rectifying unit (105) in parallel.
3. The intelligent dual-control switch according to claim 2, wherein: the signal detection module (103) comprises a first resistor R2, a second resistor R6, a third resistor R4, a fourth resistor R9, an operational amplifier U2 and a single chip microcomputer U1, wherein one end of the first resistor R2 serving as a first input port (1031) of the signal detection module (103) is connected with a first live wire output port Out1+, the other end of the first resistor R2 is connected with a negative input end of an operational amplifier U2, one end of the second resistor R6 serving as a second input port (1302) of the signal detection module (103) is connected with a second live wire output port Out2+, the other end of the second resistor R6 is connected with a positive input end of an operational amplifier U2, an output end of the operational amplifier U2 is connected with an input serial port PA0 of the single chip microcomputer U1 through the third resistor R4, an output PA6 of the single chip microcomputer U1 is connected with a fourth resistor R9, the other end of the fourth resistor R9 is connected with a first input end Load _ Check of the wireless communication module (102) as an output port (1303) of the signal detection module (103).
4. The intelligent dual-control switch according to claim 3, wherein: the signal detection module (103) further comprises a sixth resistor R7, a seventh resistor R3, an eighth resistor R5 and a ninth resistor R8, wherein the sixth resistor R7 and the seventh resistor R3 are connected in series between a low-voltage direct-current end Vcc and a ground end GND of a circuit board, and a negative input end of an operational amplifier U2 is connected with a junction point of the sixth resistor R7 and the seventh resistor R3; the eighth resistor R5 and the ninth resistor R8 are connected in series between the low-voltage direct-current terminal Vcc and the ground terminal GND of the circuit board, and the positive input end of the operational amplifier U2 is connected with the junction point of the eighth resistor R5 and the ninth resistor R8; a forward diode D1 and a backward diode D2 are also connected in parallel between the positive input terminal and the negative input terminal of the operational amplifier U2.
5. The intelligent dual-control switch according to any one of claims 1 to 4, wherein: the wireless communication module also comprises a key (106) and an indicator light (107), wherein the key (106) is connected with a second input end (1022) of the wireless communication module (102), and the indicator light (107) is connected with a second output end (1023) of the wireless communication module (102).
6. The intelligent dual-control switch according to claim 5, wherein: the switch element (101) is a relay, the switch element (101) comprises the single-pole double-throw switch and a coil, one end of the coil is connected with a low-voltage direct-current end Vcc, and the other end of the coil is connected with a first output end (1021) of the wireless communication module (102) as a control end (1014) of the switch element (101).
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| CN202022321510.2U CN213634822U (en) | 2020-10-16 | 2020-10-16 | Intelligent double-control switch |
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| CN202022321510.2U CN213634822U (en) | 2020-10-16 | 2020-10-16 | Intelligent double-control switch |
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| CN213634822U true CN213634822U (en) | 2021-07-06 |
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