CN211702011U - Relay control device and electrical apparatus - Google Patents
Relay control device and electrical apparatus Download PDFInfo
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- CN211702011U CN211702011U CN202020505558.6U CN202020505558U CN211702011U CN 211702011 U CN211702011 U CN 211702011U CN 202020505558 U CN202020505558 U CN 202020505558U CN 211702011 U CN211702011 U CN 211702011U
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Abstract
The utility model relates to a relay control device and electrical equipment, include: the Bluetooth system comprises an AND gate circuit, a delay circuit, a Bluetooth control module, a D trigger and a switch circuit; the first input end of the AND gate circuit is connected with the signal output end of the delay circuit, the second input end of the AND gate circuit is connected with the output end of the D trigger, and the output end of the AND gate circuit is used for being connected with the relay control circuit so as to control the on-off of the relay through the relay control circuit; the input end of the D trigger is connected with the Bluetooth control module, and the clock end of the D trigger is connected with the output end of the switch circuit; the input end of the switching circuit is used for being connected with the zero-crossing detection circuit. The utility model discloses circuit structure uncomplicated easy realization, the reliability is stronger.
Description
Technical Field
The utility model relates to an electronic circuit field, in particular to relay control device and electrical equipment.
Background
The bluetooth chip realizes increasingly popularizing the control of equipment, utilizes the function of bluetooth chip among the conventional art, sets up suitable circuit and firmware at the bluetooth chip periphery, thereby controls the switch of relay through APP or the relevant port output state of the remote controller control chip that has set for the configuration, realizes the control to equipment. However, in the conventional technology, due to the incomplete circuit structure and poor anti-interference capability, the normal work of the relay is influenced at the moment of electrifying the bluetooth chip, so that the abnormal situation of the control of the equipment is caused.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a relay control device and an electrical apparatus.
The utility model provides a relay control device, include: the Bluetooth system comprises an AND gate circuit, a delay circuit, a Bluetooth control module, a D trigger and a switch circuit;
the first input end of the AND gate circuit is connected with the signal output end of the delay circuit, the second input end of the AND gate circuit is connected with the output end of the D trigger, and the output end of the AND gate circuit is used for being connected with the relay control circuit so as to control the on-off of the relay through the relay control circuit; the input end of the D trigger is connected with the Bluetooth control module, and the clock end of the D trigger is connected with the output end of the switch circuit; the input end of the switching circuit is used for being connected with the zero-crossing detection circuit.
In one embodiment, the delay circuit comprises a first resistor and a first capacitor;
one end of the first resistor is used for connecting a power supply, and the other end of the first resistor is connected with one end of the first capacitor; the other end of the first capacitor is grounded; and the joint of the first resistor and the first capacitor is used as a signal output end of the delay circuit.
In one embodiment, the system further comprises a relay control circuit;
the relay control circuit comprises a relay, a diode and a first NPN triode;
two ends of a coil of the relay are respectively connected with the anode and the cathode of the diode; the base electrode of the first NPN triode is connected with the output end of the AND gate circuit, the collector electrode of the first NPN triode is connected with the anode of the diode, and the emitter electrode of the first NPN triode is grounded.
In one embodiment, the relay control circuit further comprises a third resistor, a fourth resistor and a second capacitor;
one end of the third resistor is connected with the base electrode of the first NPN triode, and the other end of the third resistor is respectively connected with one end of the fourth resistor, one end of the second capacitor and the output end of the AND gate circuit; the other end of the fourth resistor and the other end of the second capacitor are respectively grounded.
In one embodiment, the switching circuit is a photo-coupler;
the negative pole and the positive pole of the photoelectric coupler are used as the input end of the switching circuit, the emitter of the photoelectric coupler is used as the output end of the switching circuit, and the collector of the photoelectric coupler is used for being connected with a power supply.
In one embodiment, the device further comprises a second resistor; one end of the second resistor is connected with an emitter of the photoelectric coupler, and the other end of the second resistor is grounded.
In one embodiment, the switch circuit comprises a second NPN transistor, a third capacitor, and a fifth resistor;
a base electrode of the second NPN triode is used as an input end of the switching circuit, an emitting electrode of the second NPN triode is used as an output end of the switching circuit and is connected with one end of the third capacitor and one end of the fifth resistor, and a collecting electrode of the second NPN triode is used for being connected with a power supply; the other end of the third capacitor and the other end of the fifth resistor are grounded.
In one embodiment, the bluetooth control module includes a CC2541 bluetooth chip.
In one embodiment, a relay control is included.
In one embodiment, the electrical device comprises a light fixture and a motor.
The utility model provides a pair of relay control device and electrical equipment has following beneficial effect:
the utility model discloses a relay control device and electrical equipment, switch circuit make the D trigger rise to trigger to the clock end input high level signal after receiving the zero crossing signal that zero passage detection circuit sent, and then the D trigger is exported for the output with bluetooth control module input to the signal output of the input of D trigger, and the upset takes place for the output of D trigger, and then through delay circuit, AND gate circuit and relay control circuit control relay break-make. The utility model discloses relay control device and electrical equipment of each embodiment, its circuit structure is perfect, receives zero cross signal and bluetooth control module's level signal through the D trigger, combines AND gate circuit, delay circuit to can prevent that the electricity from going up in the twinkling of an eye bluetooth control module and receive the crosstalk signal interference such as peripheral circuit's pulse and make the relay malfunction, in order to influence the normal control of relay to equipment. The utility model discloses circuit structure uncomplicated easy realization, the reliability is stronger.
Drawings
Fig. 1 is a schematic structural diagram of a relay control device according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a relay control device according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a relay control device according to an embodiment of the present invention;
fig. 4 is another schematic structural diagram of a relay control device according to an embodiment of the present invention;
fig. 5 is a schematic diagram showing a structure of a relay control circuit of the relay control device according to an embodiment of the present invention;
fig. 6 shows a schematic structural diagram of an electrical device according to an embodiment of the present invention.
Detailed Description
Hereinafter, various embodiments of the present invention will be described more fully. The present invention is capable of various embodiments and of being modified and varied therein. However, it should be understood that: there is no intention to limit the scope of the invention to the specific embodiments disclosed herein, but rather, the invention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the invention.
Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to refer only to the particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combination of the foregoing.
In various embodiments of the present invention, the expression "at least one of a or/and B" includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The term "user" as used in various embodiments of the present invention may indicate a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present invention belong. Terms such as those defined in commonly used dictionaries will be interpreted as having a meaning that is the same as a contextual meaning in the related art and will not be interpreted as having an idealized or overly formal meaning unless expressly so defined herein in various embodiments of the present invention.
Referring to fig. 1, in one embodiment, the present invention provides a relay control device, including: the bluetooth control module comprises an and circuit 110, a delay circuit 120, a bluetooth control module 130, a D flip-flop 140 and a switch circuit 150.
The first input end a of the and circuit 110 is connected to the signal output end of the delay circuit 120, the second input end B of the and circuit 110 is connected to the output end Q of the D flip-flop 140, and the output end Y of the and circuit 110 is used for connecting the relay control circuit 160 to control the on/off of the relay through the relay control circuit 160; the input end D of the D trigger 140 is connected with the Bluetooth control module 130, and the clock end C of the D trigger 140 is connected with the output end of the switch circuit 150; the input of the switching circuit 150 is used to connect to the zero crossing detection circuit 170.
The and gate circuit 110 may be a circuit composed of discrete components or an integrated and gate chip. The switching circuit 150 may be a photo coupler or an NPN transistor. The charging time of the delay circuit 120 is determined by the resistance of the resistor and the capacitance of the capacitor in the circuit, and the parameters of the resistor and the capacitor can be set according to the actual circuit design, for example, according to the time length of the pulse signal output by the bluetooth control module 130 and the time length of the pulse interference signal generated by the peripheral circuit at the moment of power-on.
After power-on and during normal operation, the delay circuit 120 is in a charging completion state and outputs a high-level signal to the first input terminal a of the and circuit 110 through the signal output terminal, so that the first input terminal a of the and circuit 110 maintains a high-level state. When the switching circuit 150 receives the zero-crossing signal output by the zero-crossing detection circuit 170, a high level signal is output to the clock terminal C of the D flip-flop 140, at this time, the D flip-flop 140 jumps along the rising edge after receiving the high level signal, but the D input terminal does not receive a control instruction sent from the bluetooth control module 130, the output state of the output terminal Q remains unchanged, and further the signal output by the output terminal Y of the and circuit 110 also remains unchanged, so that the relay is kept on or off by the relay control circuit 160, and further the load electrical equipment connected with the relay remains in a stop or running state. The control command is a high level signal for controlling the relay to be switched on or a low level signal for controlling the relay to be switched off.
At the beginning of power-on, the bluetooth control module 130 does not output a level signal, and when the peripheral circuit generates a pulse or other tamper signal at the moment of power-on to interfere with the output terminal of the bluetooth control module 130 and enter the input terminal D of the D flip-flop 140, the delay circuit 120 is in a charging state at this time, so the first input terminal a of the and circuit 110 is in a low level state. Even if the switching circuit 150 receives the zero-crossing signal input by the zero-crossing detection circuit 170 and outputs a high level signal, so that the rising edge of the clock terminal C of the D flip-flop 140 jumps to be in the rising edge trigger state, and the output state of the output terminal Q is inverted to be a high level signal and output to the second input terminal B of the and circuit 110, at this time, the and circuit 110 does not satisfy the state of being completely high level, so the output terminal Y of the and circuit 110 outputs a low level and cannot start the relay control circuit 160, and the relay cannot be started by mistake to ensure that the connected electrical equipment cannot be controlled by mistake.
Further, after power-on and during normal operation, the delay circuit 120 is in a charging completion state and outputs a high-level signal to the first input terminal a of the and circuit 110 through the signal output terminal, so that the first input terminal a of the and circuit 110 maintains a high-level state. If the output end Q of the D flip-flop 140 outputs a low level signal at this time, the relay is in an off state, when the output end of the bluetooth control module 130 outputs a high level signal to the input end D of the D flip-flop 140, and the switching circuit 150 receives the zero-crossing signal output by the zero-crossing detection circuit 170 to output a high level signal to the clock end C of the D flip-flop 140, the clock end C of the D flip-flop 140 generates a rising edge transition, and the output state of the output end Q inverts a signal of the output end D, that is, a high level signal. When the second input terminal of the and circuit 110 receives the high level signal output by the output terminal Q of the D flip-flop 140, it is satisfied that all the inputs are the high level signal and thus the output terminal Y outputs the high level signal to the relay control circuit 160, so that the relay can be turned on by the relay control circuit 160, and the electrical device connected to the relay starts to operate. Further, if the bluetooth control module 130 outputs a low level signal to the input end D of the D flip-flop 140, and the switching circuit 150 receives the zero-crossing signal output by the zero-crossing detection circuit 170 to output a high level signal to the clock end C of the D flip-flop 140, the clock end C of the D flip-flop 140 generates a rising edge transition, and the output state of the output end Q flips the signal of the output input end D, that is, the low level signal. When the second input terminal B of the and circuit 110 receives the low level signal output by the output terminal Q of the D flip-flop 140, the output terminal Y outputs a high level signal to the relay control circuit 160 because all the input high level signals are not satisfied, so that the relay is turned off by the relay control circuit 160, and the electrical device connected to the relay stops operating.
The utility model discloses a relay control device, switch circuit 150 makes D trigger 140 rise along triggering to clock end C input high level signal after receiving the zero cross signal that zero cross detection circuit 170 sent, and then D trigger 140 exports output for output Q with bluetooth control module 130 input to D trigger 140's input D's signal, D trigger 140's output Q takes place to overturn, and then through delay circuit 120, AND gate circuit 110 and relay control circuit 160 control relay break-make. The utility model discloses relay control device, its circuit structure is perfect, receives zero cross signal and bluetooth control module 130's level signal through D flip-flop 140, combines AND gate circuit 110, delay circuit 120 and relay control circuit 160 to can prevent to go up the electricity and disturbed the messenger relay malfunction by the crosstalk signal such as bluetooth control module 130 peripheral circuit's pulse in the twinkling of an eye, with the normal control of influence relay to equipment. The utility model discloses circuit structure uncomplicated easy realization, the reliability is stronger.
Referring to fig. 2, in one particular embodiment, the switching circuit is an opto-coupler U1.
The negative pole and the positive pole of optoelectronic coupler U1 are as switching circuit's input, and the emitter of optoelectronic coupler U1 is as switching circuit's output, and optoelectronic coupler U1's collecting electrode is used for connecting power supply VCC.
The negative electrode and the positive electrode of the photocoupler U1 are used for connecting the zero-cross detection circuit 170, and the emitter is connected to the clock terminal C of the D flip-flop 140. When the zero-cross detection circuit 170 outputs a zero-cross signal to the photo-coupler U1, the photo-coupler U1 turns on the emitter to output a high level signal to the clock terminal C of the D flip-flop 140. Specifically, the negative electrode of the photocoupler U1 is connected to the low potential output terminal of the zero-cross detection circuit 170, and the positive electrode is connected to the high potential output terminal of the zero-cross detection circuit 170. When the zero-crossing detection circuit 170 is at the zero-crossing point of the voltage, the zero-crossing signal is at the high potential output end, the low potential output end is at the low potential, and the photoelectric coupler U1 is turned on.
The utility model discloses relay control device adopts photoelectric coupler U1 when can playing the isolation protection effect as switch circuit, can trigger D trigger 140 and rise along the jump, guarantees D trigger 140 when receiving the corresponding control signal of bluetooth control module input, can be through delay circuit, AND gate and relay control circuit control relay break-make. The circuit structure is simple, the circuit works more stably and reliably, and the anti-interference capability of the relay control device is further improved.
Referring to fig. 3, in a specific embodiment, the switching circuit includes a second NPN transistor Q2, a third capacitor C3, and a fifth resistor R5.
A base electrode of the second NPN triode Q2 is used as an input end of the switching circuit, an emitter electrode of the second NPN triode Q2 is used as an output end of the switching circuit, and is connected to one end of the third capacitor C3 and one end of the fifth resistor R5, and a collector electrode of the second NPN triode Q2 is used for connecting the power supply VCC; the other end of the third capacitor C3 and the other end of the fifth resistor R5 are grounded.
The base of the second NPN transistor Q2 is used for connecting the zero-cross detection circuit 170, and the emitter is connected to the clock terminal C of the D flip-flop 140. When the zero-crossing detection circuit 170 inputs a zero-crossing signal to the base of the second NPN transistor Q2, the second NPN transistor Q2 is turned on, and at this time, the charging circuit formed by the third capacitor C3 and the fifth resistor R5 charges so that the emitter outputs a high level to the clock terminal C of the D flip-flop. Specifically, the second NPN transistor Q2 is connected to the high-voltage output terminal of the zero-crossing detection circuit 170, and when the zero-crossing signal of the zero-crossing detection circuit 170 is at a high voltage level at the high-voltage output terminal at a zero-crossing point of the voltage, the second NPN transistor Q2 is turned on. Preferably, a base resistor can be connected to the base of the second NPN transistor Q2 to protect the current.
The utility model discloses relay control device, switch circuit includes second NPN triode Q2, third electric capacity C3 and fifth resistance R5, moreover, the steam generator is simple in structure, can be with weak signal amplification to the great signal of telecommunication of range and consumption lower, be connected with zero cross detection circuit 170 and can trigger D trigger 140 to rise along the jump when the zero crossing point of voltage, guarantee D trigger 140 when receiving the corresponding control signal of bluetooth control module input, can pass through delay circuit, AND gate and relay control circuit control relay break-make. The circuit structure is simple, the circuit is more stable and reliable during working, and the anti-interference capability of the relay control device is further improved.
Referring to fig. 4, in a specific embodiment, the delay circuit includes a first resistor R1 and a first capacitor C1.
One end of the first resistor R1 is used for connecting a power supply VCC, and the other end of the first resistor R1 is connected with one end of the first capacitor C1; the other end of the first capacitor C1 is grounded; the junction of the first resistor R1 and the first capacitor C1 serves as a signal output end of the delay circuit.
The junction of the first resistor R1 and the first capacitor C1 serves as a signal output terminal connected to the first input terminal a of the and circuit 110. At the beginning of power-on, the first capacitor C1 is charged through the first resistor R1, the first input terminal a of the and circuit 110 is in a low level state, and until the charging is finished, that is, after the delay time reaches, the first input terminal a of the and circuit 110 is in a high level state. The charging time of the delay circuit is determined by the resistance of the first resistor R1 and the capacitance of the first capacitor C1, and the parameters of the first resistor R1 and the first capacitor C1 can be set according to the actual circuit design, such as the time length of the pulse interference signal generated by the peripheral circuit at the moment. Preferably, the charging time of the delay circuit is shorter than the time length of the pulse signal output by the bluetooth control module 130 and longer than the time length of the pulse crosstalk signal generated at the moment of powering on the peripheral circuit.
The utility model discloses relay control device, the digital logic functional characteristic of the circuit characteristic of usable delay circuit and AND gate circuit combines D trigger 140 effectively to prevent the interference of interference signals such as pulse signal that the electricity produced in the twinkling of an eye on bluetooth control module 130 to relay control electrical equipment.
Referring to fig. 2, in a specific embodiment, a second resistor R2 is further included; one end of the second resistor R2 is connected with the emitter of the photocoupler U1, and the other end of the second resistor R2 is grounded.
The utility model discloses relay control device connects second resistance R2 at photoelectric coupler U1's projecting pole to output high level signal to D flip-flop 140's clock end C when can further guarantee photoelectric coupler U1 to switch on. The utility model discloses circuit structure is comparatively perfect, and the reliability is stronger to help preventing to go up the electricity and receive in the twinkling of an eye the interference of crosstalk signals such as peripheral circuit's of bluetooth control module pulse and make the relay malfunction.
Referring to fig. 5, in a specific embodiment, a relay control circuit is also included.
The relay control circuit comprises a relay J, a diode D1 and a first NPN transistor Q1.
Two ends A1 and A2 of a coil of the relay J are respectively connected with the anode and the cathode of the diode D1; the base of the first NPN transistor Q1 is connected to the output terminal Y of the and circuit, the collector of the first NPN transistor Q1 is connected to the anode of the diode D1, and the emitter of the first NPN transistor Q1 is grounded.
The diode D1 is connected in parallel with two ends of the coil A1 and A2 of the relay J to play a role in protection, and damage to the relay J caused by reverse electromotive force is prevented. When the output end Y of the AND gate circuit outputs a high-level signal, the first NPN triode Q1 is conducted, and two ends of the coil A1 and the coil A2 of the relay J are electrified, so that the relay J is connected with the connected electrical equipment to start to operate. For example, the common terminal COM, the normally open contact NO and the normally closed contact NC of the relay J are respectively connected to the electrical device, when the coils a1 and a2 of the relay J are energized, the normally closed contact NC is disconnected from the common terminal COM, and the normally open contact NO is attracted to the common terminal COM, so that the electrical device starts to operate. When the output end Y of the AND gate circuit outputs a low level signal, the first NPN triode Q1 is turned off, the two ends of the coil A1 and the coil A2 of the relay J lose power, the normally closed contact NC is attracted with the common end COM, and the normally open contact NO is disconnected with the common end COM, so that the relay J disconnects the electrical equipment connected with the relay J, and the electrical equipment stops operating.
The utility model discloses relay control device, its circuit structure is perfect, and its relay control circuit includes relay J, diode D1 and a NPN triode Q1 to cooperation D trigger, delay circuit and AND gate circuit in time respond to bluetooth control module's corresponding control instruction. The relay protection device is beneficial to preventing the malfunction of the relay caused by the interference of the pulse and other crosstalk signals of the peripheral circuit of the Bluetooth control module at the moment of power-on so as to influence the normal control of the relay on equipment.
Referring to fig. 5, in a specific embodiment, the relay control circuit further includes a third resistor R3, a fourth resistor R4, and a second capacitor C2.
One end of the third resistor R3 is connected to the base of the first NPN transistor Q1, and the other end of the third resistor R3 is connected to one end of the fourth resistor R4, one end of the second capacitor C2, and the output end of the and circuit 110, respectively; the other end of the fourth resistor R4 and the other end of the second capacitor C2 are respectively grounded.
The third resistor R3 is the base resistor of the first NPN transistor Q1, which functions as a current limiter. The fourth resistor R4 and the second capacitor C2 form a filter circuit for filtering.
The utility model discloses relay control device, circuit structure is comparatively perfect, can further improve reliability and interference killing feature. Therefore, the relay control circuit can better cooperate with the D trigger, the delay circuit and the AND gate circuit to respond to the corresponding control instruction of the Bluetooth control module in time. The relay protection device is beneficial to preventing the malfunction of the relay caused by the interference of the pulse and other crosstalk signals of the peripheral circuit of the Bluetooth control module at the moment of power-on so as to influence the normal control of the relay on equipment.
In a particular embodiment, the bluetooth control module includes a CC2541 bluetooth chip.
Referring to fig. 6, in one embodiment, the present disclosure provides an electrical device including a relay control 610.
It should be noted that, the relay control device 610 according to the embodiment of the present invention can be limited by referring to the description of the relay control device in each of the above embodiments, and is not described herein again.
The utility model discloses an electrical equipment, including relay control device 610, wherein, switching circuit makes the D trigger rise to trigger to the clock end input high level signal after receiving the zero cross signal that zero cross detection circuit sent, and then the D trigger is with bluetooth control module input to the signal output of the input of D trigger for output, and the upset takes place for the output of D trigger, and then through delay circuit, AND gate circuit and relay control circuit control relay break-make. The utility model discloses electrical equipment, its circuit structure is perfect, receives zero cross signal and bluetooth control module's level signal through the D trigger, combines AND gate circuit, delay circuit and relay control circuit to can prevent to go up the electricity and receive in the twinkling of an eye the crosstalk signal interference such as bluetooth control module peripheral circuit's pulse and make the relay malfunction, in order to influence the normal control of relay to equipment. The utility model discloses circuit structure uncomplicated easy realization, the reliability is stronger.
In a particular embodiment, the electrical device may be a light fixture, a motor, or the like.
Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The sequence numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (10)
1. A relay control apparatus, comprising: the Bluetooth system comprises an AND gate circuit, a delay circuit, a Bluetooth control module, a D trigger and a switch circuit;
the first input end of the AND gate circuit is connected with the signal output end of the delay circuit, the second input end of the AND gate circuit is connected with the output end of the D trigger, and the output end of the AND gate circuit is used for being connected with the relay control circuit so as to control the on-off of the relay through the relay control circuit; the input end of the D trigger is connected with the Bluetooth control module, and the clock end of the D trigger is connected with the output end of the switch circuit; and the input end of the switching circuit is connected with the zero-crossing detection circuit.
2. The relay control apparatus of claim 1, wherein the delay circuit comprises a first resistor and a first capacitor;
one end of the first resistor is used for being connected with a power supply, and the other end of the first resistor is connected with one end of the first capacitor; the other end of the first capacitor is grounded; and the joint of the first resistor and the first capacitor is used as a signal output end of the delay circuit.
3. The relay control apparatus of claim 1, further comprising the relay control circuit;
the relay control circuit comprises a relay, a diode and a first NPN triode;
two ends of a coil of the relay are respectively connected with the anode and the cathode of the diode; the base electrode of the first NPN triode is connected with the output end of the AND gate circuit, the collector electrode of the first NPN triode is connected with the anode of the diode, and the emitting electrode of the first NPN triode is grounded.
4. The relay control apparatus of claim 3, wherein the relay control circuit further comprises a third resistor, a fourth resistor, and a second capacitor;
one end of the third resistor is connected with the base electrode of the first NPN triode, and the other end of the third resistor is respectively connected with one end of the fourth resistor, one end of the second capacitor and the output end of the AND gate circuit; the other end of the fourth resistor and the other end of the second capacitor are respectively grounded.
5. The relay control device according to claim 1, wherein the switching circuit is a photo-coupler;
the negative pole and the positive pole of the photoelectric coupler are used as the input end of the switching circuit, the emitter of the photoelectric coupler is used as the output end of the switching circuit, and the collector of the photoelectric coupler is used for being connected with a power supply.
6. The relay control device according to claim 1, wherein the switching circuit includes a second NPN transistor, a third capacitor, and a fifth resistor;
a base electrode of the second NPN triode is used as an input end of the switching circuit, an emitter electrode of the second NPN triode is used as an output end of the switching circuit and is connected with one end of the third capacitor and one end of the fifth resistor, and a collector electrode of the second NPN triode is used for being connected with a power supply; the other end of the third capacitor and the other end of the fifth resistor are grounded.
7. The relay control device according to claim 5, further comprising a second resistor; one end of the second resistor is connected with the emitting electrode of the photoelectric coupler, and the other end of the second resistor is grounded.
8. The relay control device of claim 1, wherein the bluetooth control module comprises a CC2541 bluetooth chip.
9. An electrical apparatus, characterized by comprising the relay control device according to any one of claims 1 to 8.
10. The electrical device of claim 9, wherein the electrical device comprises a light fixture and a motor.
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| CN202020505558.6U CN211702011U (en) | 2020-04-08 | 2020-04-08 | Relay control device and electrical apparatus |
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| CN202020505558.6U CN211702011U (en) | 2020-04-08 | 2020-04-08 | Relay control device and electrical apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039381A (en) * | 2021-11-22 | 2022-02-11 | 江苏莱提电气股份有限公司 | Flexible grid-connected device and method for three-phase four-wire active filter module |
| CN115848151A (en) * | 2022-11-29 | 2023-03-28 | 上海海拉电子有限公司 | Relay control circuit system and control method thereof |
-
2020
- 2020-04-08 CN CN202020505558.6U patent/CN211702011U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039381A (en) * | 2021-11-22 | 2022-02-11 | 江苏莱提电气股份有限公司 | Flexible grid-connected device and method for three-phase four-wire active filter module |
| CN115848151A (en) * | 2022-11-29 | 2023-03-28 | 上海海拉电子有限公司 | Relay control circuit system and control method thereof |
| CN115848151B (en) * | 2022-11-29 | 2024-08-02 | 上海海拉电子有限公司 | Relay control circuit system and control method thereof |
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