CN211018407U - Integrated controller and control cabinet - Google Patents
Integrated controller and control cabinet Download PDFInfo
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- CN211018407U CN211018407U CN201922329963.7U CN201922329963U CN211018407U CN 211018407 U CN211018407 U CN 211018407U CN 201922329963 U CN201922329963 U CN 201922329963U CN 211018407 U CN211018407 U CN 211018407U
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Abstract
The application discloses an integrated controller and a control cabinet, which comprise an electric energy acquisition device and a switch control device, wherein the electric energy acquisition device comprises a first main control chip, an alternating voltage sampling circuit, an alternating current sampling circuit, a zero sequence current sampling circuit, a temperature sampling circuit, a first digital signal input circuit, a relay output circuit, a first F L ASH storage circuit, a dial switch circuit, an ADC reference voltage circuit, an RTC clock circuit and a first RS485 isolation communication circuit, which are connected with the first main control chip, and the switch control device comprises a second main control chip, a second digital signal input circuit, a digital signal output circuit, a switch switching and relay switching circuit, a second F L ASH storage circuit and a second RS485 communication circuit which are connected with the second main control chip.
Description
Technical Field
The application relates to the technical field of automatic electric energy metering control, in particular to an integrated controller; still relate to an integration switch board.
Background
The control cabinet typically includes a controller, distribution protection switching elements, functional circuits of different functions, and the like. Control button and contactor need be connected when carrying out the switch board installation based on traditional controller, with the functional circuit connection of different functions to cause the technical problem such as wiring complicacy, wire rod extravagant, artifical installation time-consuming, make mistakes easily. Therefore, how to solve the technical defects becomes a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integrated controller and switch board is provided, can simplify the switch board wiring, reduce the material and use, reduce artifical installation work load.
In order to solve the above technical problem, the present application provides an integrated controller, including:
the electric energy acquisition device and the switch control device;
the electric energy acquisition device comprises a first main control chip, an alternating voltage sampling circuit, an alternating current sampling circuit, a zero sequence current sampling circuit, a temperature sampling circuit, a first digital signal input circuit, a relay output circuit, a first F L ASH storage circuit, a dial switch circuit, an ADC reference voltage circuit, an RTC clock circuit and a first RS485 isolation communication circuit, wherein the alternating voltage sampling circuit, the alternating current sampling circuit, the zero sequence current sampling circuit, the temperature sampling circuit, the first digital signal input circuit, the relay output circuit, the first F L ASH storage circuit, the;
the switch control device comprises a second main control chip, a second digital signal input circuit, a digital signal output circuit, a switch switching and relay switching circuit, a second F L ASH storage circuit and a second RS485 communication circuit, wherein the second digital signal input circuit, the digital signal output circuit, the switch switching and relay switching circuit, the second F L ASH storage circuit and the second RS485 communication circuit are connected with the second main control chip.
Optionally, the ac voltage sampling circuit includes:
the voltage transformer, the first operational amplifier, the first resistor, the second resistor and the first capacitor; the primary side of the voltage transformer is respectively connected with a live wire and a zero line, the first resistor and the first capacitor are both connected in parallel to the secondary side of the voltage transformer, the first end of the secondary side of the voltage transformer is connected with the homodromous input end of the first operational amplifier, the second end of the secondary side of the voltage transformer is connected with the reverse input end of the first operational amplifier, the output end of the first operational amplifier is connected with the reverse input end of the first operational amplifier after being connected with the second resistor in series, and the output end of the first operational amplifier is used as the output end of the alternating voltage sampling circuit.
Optionally, the alternating current sampling circuit and the zero sequence current sampling circuit both include:
the current transformer, the second operational amplifier, the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the second capacitor and the third capacitor; the third resistor and the second capacitor are both connected in parallel to the output end of the current transformer, the first output end of the current transformer is connected with the homodromous input end of the second operational amplifier, and the second output end of the current transformer is connected with a reference voltage; the output end of the second operational amplifier is connected with the reverse input end of the second operational amplifier after being connected with the fourth resistor in series and is connected with the same-direction input end of the third operational amplifier after being connected with the fifth resistor in series, and the output end of the second operational amplifier is used as the first output end of the current sampling circuit; the inverting input end of the third operational amplifier is connected with the reference voltage, and the output end of the third operational amplifier is used as the second output end of the current sampling circuit; the sixth resistor is connected in parallel with the third capacitor, the first common end is connected with the output end of the third operational amplifier, and the second common end is connected with the reverse input end of the third operational amplifier.
Optionally, the temperature sampling circuit includes:
the temperature sensor, the voltage stabilizing diode, the fourth capacitor, the fifth capacitor, the seventh resistor, the eighth resistor, the ninth resistor, the first inductor and the second inductor; one end of the fourth capacitor is connected with one end of the seventh resistor, one end of the eighth resistor and the power supply, the other end of the fourth capacitor is grounded, the other end of the eighth resistor serves as the output end of the temperature acquisition circuit, the voltage stabilizing diode is connected with the fifth capacitor in parallel, a first common end is connected with the other end of the seventh resistor and one end of the first inductor, a second common end is connected with one end of the ninth resistor and one end of the second inductor, the other end of the ninth resistor is grounded, and the other end of the first inductor and the other end of the second inductor are connected with the temperature sensor; the first common end is a common end where an anode of the voltage stabilizing diode is located.
Optionally, the first digital signal input circuit and the second digital signal input circuit each include:
the photoelectric coupler, the tenth resistor, the eleventh resistor, the twelfth resistor and the thirteenth resistor; the first end of the photoelectric coupler is connected with the tenth resistor in series and then connected with an external switch, the eleventh resistor is connected with the first end and the second end of the photoelectric coupler in parallel, the third end of the photoelectric coupler is connected with a power supply, the fourth end of the photoelectric coupler is connected with one end of the twelfth resistor and one end of the thirteenth resistor, the other end of the twelfth resistor is grounded, and the other end of the thirteenth resistor is used as the output end of the digital signal input circuit.
Optionally, the relay output circuit includes:
the first triode, the first diode and the sixth capacitor; the base electrode of the first triode is connected with the first main control chip, the collector electrode of the first triode is connected with one end of a relay coil and a first common end of the first diode and the sixth capacitor after being connected in parallel, and the first diode and a second common end of the sixth capacitor are connected with a power supply and the other end of the relay coil; the first common end of the first diode and the sixth capacitor is the common end where the anode of the first diode is located, and the emitter of the first triode is grounded.
Optionally, the RTC clock circuit includes:
the circuit comprises a crystal oscillator, a clock chip, a standby battery and a second diode; the crystal oscillator is connected with the clock chip, the anode of the standby battery is connected with the power pin of the clock chip, the cathode of the standby battery is grounded, and the power pin of the clock chip is connected with the power supply after being connected with the second diode in series.
Optionally, the first RS485 isolation communication circuit and the second RS485 isolation communication circuit both include:
the RS485 communication isolation chip, the first bidirectional transient suppression diode, the second bidirectional transient suppression diode, the fourteenth resistor and the fifteenth resistor; one end of the first bidirectional transient suppression diode is connected with a first pin of the RS485 communication isolation chip, the other end of the first bidirectional transient suppression diode is grounded, one end of the second bidirectional transient suppression diode is connected with a second pin of the RS485 communication isolation chip, the other end of the second bidirectional transient suppression diode is grounded, the first pin of the RS485 communication isolation chip is connected with the fourteenth resistor in series and then connected with a power supply, and the second pin of the RS485 communication isolation chip is connected with the fifteenth resistor in series and then grounded.
Optionally, the digital signal output circuit includes:
the second triode, the third triode and the second photoelectric coupler; the first end of the second photoelectric coupler is connected with a power supply, the second end of the second photoelectric coupler is connected with the collector of the second triode, the third end of the second photoelectric coupler is grounded, the fourth end of the second photoelectric coupler is connected with the base, the emitter and the power supply of the third triode, the base of the third triode is connected with the second main control chip, the emitter of the third triode is grounded, and the collector of the third triode is used as the output end of the digital signal output circuit.
Optionally, the switch switching and relay switching circuit includes:
the first relay, the second relay, the third relay, the first button switch, the second button switch, the third button switch and the fourth button switch are arranged on the switch; the first relay is respectively connected with the selector switch, the first button switch and the second button switch, and the second relay is respectively connected with the selector switch, the third button switch and the fourth button switch; the third relay is connected with the selector switch, an emitting electrode of the fourth triode and an emitting electrode of the fifth triode, base electrodes of the fourth triode and the fifth triode are connected with the second main control chip, a collector electrode of the fourth triode is connected with the second button switch, and a collector electrode of the fifth triode is connected with the fourth button switch; wherein each button switch is provided with an indicator light.
In order to solve the technical problem, the application further provides a control cabinet, wherein the control cabinet is provided with the integrated controller.
The integrated controller comprises an electric energy acquisition device and a switch control device, wherein the electric energy acquisition device comprises a first main control chip, an alternating voltage sampling circuit, an alternating current sampling circuit, a zero sequence current sampling circuit, a temperature sampling circuit, a first digital signal input circuit, a relay output circuit, a first F L ASH storage circuit, a dial switch circuit, an ADC reference voltage circuit, an RTC clock circuit and a first RS485 isolation communication circuit, which are connected with the first main control chip, and the switch control device comprises a second main control chip, a second digital signal input circuit, a digital signal output circuit, a switch switching and relay switching circuit, a second F L ASH storage circuit and a second RS485 communication circuit, which are connected with the second main control chip.
It is thus clear that the integrated controller that this application provided, with functional circuit integration in an organic whole such as alternating voltage sampling circuit, alternating current sampling circuit, each functional circuit in the controller has integrated the connection in advance and has accomplished, only need to connect the controller with outside contactor through a small number of wires can realize control contactor and open, close, functions such as contactor closure and disconnection detection, and need not to utilize a large amount of wires to connect different functional device when installing the switch board, thereby effectively simplified the switch board wiring, reduced the material and used, reduce manual installation work load.
The switch board that this application provided has above-mentioned technological effect equally.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the prior art and the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an integrated controller according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an ac voltage sampling circuit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an ac current sampling circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a temperature sampling circuit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a digital input circuit according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an output circuit of a relay according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an F L ASH storage circuit according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a dial switch circuit according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an ADC reference voltage circuit according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of an RTC clock circuit according to an embodiment of the present disclosure;
fig. 11 is a schematic structural diagram of an RS485 isolation communication circuit according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of a digital signal output circuit according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of a switch switching portion in a switch switching and relay switching circuit according to an embodiment of the present disclosure;
fig. 14 is a schematic structural diagram of a relay switching portion in a switch switching and relay switching circuit according to an embodiment of the present disclosure;
fig. 15 is a schematic structural diagram of an alarm circuit according to an embodiment of the present application.
Detailed Description
The core of this application is to provide an integrated controller and switch board, can simplify the switch board wiring, reduce the material and use, reduce artifical installation work load.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an integrated controller provided in an embodiment of the present application, and referring to fig. 1, the integrated controller includes an electric energy acquisition device and a switch control device, where the electric energy acquisition device includes a first main control chip, an alternating current voltage sampling circuit, an alternating current sampling circuit, a zero sequence current sampling circuit, a temperature sampling circuit, a first digital signal input circuit, a relay output circuit, a first F L ASH storage circuit, a dial switch circuit, an ADC reference voltage circuit, an RTC clock circuit, and a first RS485 isolation communication circuit, the switch control device includes a second main control chip, a second digital signal input circuit, a digital signal output circuit, a switch switching and relay switching circuit, a first F L ASH storage circuit, and a second RS485 communication circuit, which are connected to the second main control chip.
Specifically, the first main control chip and the second main control chip are used as a control core of the integrated controller and mainly responsible for acquisition, processing, communication and control output of various parameters. The first main control chip and the second main control chip can be specifically ARM main control chips. Of course, those skilled in the art may select other types of main control chips according to actual situations, and for comparison, the present application is not limited uniquely.
Referring to fig. 2, in a specific embodiment, the ac voltage sampling circuit may include a voltage transformer T1, a first operational amplifier, a first resistor R1, a second resistor R2, and a first capacitor C1, wherein a primary side of the voltage transformer T1 is connected to a live line L1 and a zero line L N, the first resistor R1 and the first capacitor C1 are both connected in parallel to a secondary side of the voltage transformer T1, a first end of the secondary side of the voltage transformer T1 is connected to a same-direction input end of the first operational amplifier (the same-direction input end of the first operational amplifier may be connected after the resistor is connected in series), a second end of the secondary side of the voltage transformer T1 is connected to a reverse-direction input end of the first operational amplifier (the same-direction input end of the first operational amplifier may be connected after the resistor is connected in series), an output end of the first operational amplifier is connected after the second resistor R2 is connected to the reverse-direction input end of the first operational amplifier, and the output end of the first operational amplifier is used as an analog voltage sampling output terminal UA 2 shown in the figure.
The alternating current sampling circuit is responsible for collecting the current of the three-phase alternating current power supply, and the zero sequence current sampling circuit is responsible for collecting the zero sequence current of the three-phase alternating current power supply. Referring to fig. 3, in a specific embodiment, the ac current sampling circuit and the zero sequence current sampling circuit each include a current transformer CT, a second operational amplifier, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a second capacitor C2, and a third capacitor C3. The third resistor R3 and the second capacitor C2 are both connected in parallel to the output terminal of the current transformer CT, the first output terminal of the current transformer CT is connected to the unidirectional input terminal of the second operational amplifier (specifically, the resistor may be connected in series and then connected to the unidirectional input terminal of the second operational amplifier), and the second output terminal of the current transformer CT is connected to the reference voltage. The output terminal of the second operational amplifier is connected in series with the fourth resistor R4 and then connected to the inverting input terminal of the second operational amplifier, and is connected in series with the fifth resistor R5 and then connected to the inverting input terminal of the third operational amplifier, and the output terminal of the second operational amplifier is used as the first output terminal of the current sampling circuit for outputting the current sampling analog quantity (as shown in fig. 3 IA, corresponding to the zero sequence current sampling circuit, the output terminal of the second operational amplifier outputs the zero sequence current analog quantity). In addition, the output end of the second operational amplifier is connected in series with a resistor and then grounded. The inverting input terminal of the third operational amplifier is connected to the reference voltage, and the output terminal of the third operational amplifier is used as the second output terminal of the current sampling circuit to output the current collection analog quantity (as shown in fig. 3, IAX corresponds to the zero sequence current sampling circuit, and the output terminal of the second operational amplifier outputs the zero sequence current analog quantity). The sixth resistor R6 is connected in parallel with the third capacitor C3, and has a first common terminal connected to the output terminal of the third operational amplifier and a second common terminal connected to the inverting input terminal of the third operational amplifier. The reverse input end of the third operational amplifier is also connected with a reference voltage after being connected with a resistor in series.
Referring to fig. 4, in a specific embodiment, the temperature sampling circuit includes a temperature sensor (not shown in fig. 4), a zener diode D, a fourth capacitor C4, a fifth capacitor C5, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first inductor L1, and a second inductor L2. one end of the fourth capacitor C4 is connected to one end of the seventh resistor R7, one end of the eighth resistor R8, and a power supply, the other end of the fourth capacitor C4 is grounded, the other end of the eighth resistor R8 is used as an output end of the temperature acquisition circuit to output an analog quantity of the temperature sensor, the zener diode D is connected in parallel with the fifth capacitor C5, the first common terminal is connected to the other end of the seventh resistor R7 and one end of the first inductor L, the second common terminal is connected to one end of the ninth resistor R9 and one end of the second inductor C5966, the other end of the second inductor R9 is connected to the anode of the first inductor R L, and the other end of the first inductor R L is connected to the anode of the common resistor R L.
The digital signal input circuit is responsible for collecting the switching signals of the contactor. Referring to fig. 5, in a specific embodiment, the first digital signal input circuit in the electric energy collection device and the second digital signal input circuit in the switch control device each include a photocoupler, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, and a thirteenth resistor R13; the first end of the photoelectric coupler is connected with an external switch after being connected with a tenth resistor R10 in series, an eleventh resistor R11 is connected with the first end and the second end of the photoelectric coupler in parallel, the third end of the photoelectric coupler is connected with a power supply, the fourth end of the photoelectric coupler is connected with one end of a twelfth resistor R12 and one end of a thirteenth resistor R13, the other end of the twelfth resistor R12 is grounded, and the other end of the thirteenth resistor R13 serves as the output end of the digital signal input circuit.
The relay output circuit is responsible for driving external equipment such as a release and the like. Referring to fig. 6, in a specific embodiment, the relay output circuit includes a first transistor Q1, a first diode D1, and a sixth capacitor C6. A base electrode of the first triode Q1 is connected with a first main control chip (specifically, the base electrode can be connected with the first main control chip after being connected with a resistor in series), a collector electrode of the first triode Q1 is connected with one end of the relay coil and a first common end of the first diode D1 and the sixth capacitor C6 after being connected in parallel, and a second common end of the first diode D1 and the sixth capacitor C6 is connected with a power supply and the other end of the relay coil; the first common terminal of the first diode D1 and the sixth capacitor C6 is the common terminal of the anode of the first diode D1, and the emitter of the first triode Q1 is grounded. In addition, a resistor can be connected between the base electrode and the emitting electrode of the first triode.
The first F L ASH storage circuit is responsible for storing the internal operation parameters of the controller, the dial switch circuit realizes the manual setting of the address and the parameters, and the ADC reference voltage circuit is responsible for providing reference voltage for the first main control chip.
Referring to fig. 7, the first F L ASH storage circuit and the second F L ASH storage circuit may each include a storage chip and a resistor, the SC L pin and the SDA pin of the storage chip are connected to the first main control chip, referring to fig. 8, the dial switch circuit may include a dial switch and a resistor, each port of the dial switch is connected to the first main control chip, referring to fig. 9, the ADC reference voltage circuit may include a voltage regulator diode, a resistor, a capacitor, and an inductor, and the voltage regulator diode is connected to the power supply and the resistor, respectively, to form a precision voltage regulator.
Referring to fig. 10, in a specific embodiment, the RTC clock circuit may include a crystal oscillator, a clock chip, a standby battery BAT and a second diode D2, the crystal oscillator is connected to the clock chip, a positive electrode of the standby battery BAT is connected to a power pin of the clock chip, a negative electrode of the standby battery BAT is grounded, the power pin of the clock chip is connected to the second diode D2 in series and then connected to a power supply, and an SC L pin and an SDA pin of the clock chip are respectively connected to the first master control chip.
The RS585 isolation communication circuit is responsible for RS485 communication level conversion. Referring to fig. 11, in a specific embodiment, each of the first RS485 isolation communication circuit and the second RS485 isolation communication circuit includes an RS485 communication isolation chip, a first bidirectional transient suppression diode, a second bidirectional transient suppression diode, a fourteenth resistor R14, and a fifteenth resistor R15; one end of the first bidirectional transient suppression diode is connected with a first pin (pin A shown in fig. 11) of the RS485 communication isolation chip, the other end of the first bidirectional transient suppression diode is grounded, one end of the second bidirectional transient suppression diode is connected with a second pin (pin B shown in fig. 11) of the RS485 communication isolation chip, the other end of the second bidirectional transient suppression diode is grounded, the first pin of the RS485 communication isolation chip is connected with a fourteenth resistor R14 in series and then connected with a power supply, and the second pin of the RS485 communication isolation chip is connected with a fifteenth resistor R15 in series and then connected with the ground. In addition, an RXD pin, a TXD pin and an RE pin of the RS485 communication isolation chip are connected with the DE pin to form a main control chip.
The digital signal output circuit is responsible for outputting a driving signal to drive the relay to be closed or opened. Referring to fig. 12, in a specific embodiment, the digital signal output circuit may include a second transistor Q2, a third transistor Q3, and a second photo coupler. The first end of the second photoelectric coupler is connected with a power supply (specifically, the first end of the second photoelectric coupler can be connected with the power supply after being connected with a resistor in series), the second end of the second photoelectric coupler is connected with the collector electrode of the second triode Q2, the third end of the second photoelectric coupler is grounded, and the fourth end of the second photoelectric coupler is connected with the base electrode, the emitter electrode and the power supply of the third triode Q3. The base of the third triode Q3 is connected to the second main control chip (specifically, the base can be connected to the second main control chip after being connected to a resistor in series, and in addition, one end of the resistor connected to the second main control chip can also be connected to a capacitor). The emitter of the third transistor Q3 is grounded, and the collector of the third transistor Q3 is used as the output terminal of the digital signal output circuit to output the relay coil control signal.
The switch switching circuit and the relay switching circuit are used for realizing control mode switching and relay switching. Referring to fig. 13 and 14, in one embodiment, the switch switching and relay switching circuit may include a switch SS, a first relay K1, a second relay K2, a third relay K3, a first push button switch CN1, a second push button switch CN2, a third push button switch CN3, and a fourth push button switch CN 4; the first relay K1 is respectively connected with the selector switch SS, the first button switch CN1 and the second button switch CN2, and the second relay K2 is respectively connected with the selector switch SS, the third button switch CN3 and the fourth button switch CN 4; the third relay K3 is connected with the change-over switch SS, the emitter of a fourth triode Q4 and the emitter of a fifth triode Q5, the bases of the fourth triode Q4 and the fifth triode Q5 are connected with the second main control chip, the collector of the fourth triode Q4 is connected with a second button switch CN2, and the collector of the fifth triode Q5 is connected with a fourth button switch CN 4; wherein each button switch is provided with an indicator light. Here, when the movable end of the changeover switch is connected to the contact 4 shown in fig. 14, the manual control is activated, and when the movable end of the changeover switch is connected to the contact 1 shown in fig. 14, the automatic control is activated. The first button switch CN1 and the second button switch CN3 are used for stop control, and the second button switch CN2 and the fourth button switch CN4 are used for start control. In addition, the first relay K1 and the second relay K2 are connected to an external ac contactor, respectively.
Further, the electric energy collection device may further include an alarm circuit, and as shown in fig. 15, the alarm circuit may include a buzzer, a triode, and a capacitor. The base electrode of the triode is connected with the first main control chip, the collector electrode of the triode is connected with the buzzer, and the emitting electrode of the triode is grounded.
In summary, the integrated controller provided by the application integrates the functional circuits such as the alternating voltage sampling circuit and the alternating current sampling circuit, the functional circuits in the controller are integrated and connected in advance, the functions of controlling the opening and closing of the contactor, detecting the closing and opening of the contactor and the like can be realized only by connecting the controller with the external contactor through a few wires, and a large number of wires are not needed to be used for connecting different functional devices when the control cabinet is installed, so that the wiring of the control cabinet is effectively simplified, the material use is reduced, and the workload of manual installation is reduced.
The present application further provides a control cabinet, where the control cabinet is provided with the integrated controller as described in the above embodiments, and please refer to the above embodiments of the integrated controller for the introduction of the control cabinet provided by the present application, which is not described herein again.
Because the situation is complicated and cannot be illustrated by a list, those skilled in the art can appreciate that there can be many examples in combination with the actual situation under the basic principle of the embodiments provided in the present application and that it is within the scope of the present application without sufficient inventive effort.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The integrated controller and the control cabinet provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (11)
1. An integrated controller, comprising:
the electric energy acquisition device and the switch control device;
the electric energy acquisition device comprises a first main control chip, an alternating voltage sampling circuit, an alternating current sampling circuit, a zero sequence current sampling circuit, a temperature sampling circuit, a first digital signal input circuit, a relay output circuit, a first F L ASH storage circuit, a dial switch circuit, an ADC reference voltage circuit, an RTC clock circuit and a first RS485 isolation communication circuit, wherein the alternating voltage sampling circuit, the alternating current sampling circuit, the zero sequence current sampling circuit, the temperature sampling circuit, the first digital signal input circuit, the relay output circuit, the first F L ASH storage circuit, the dial switch;
the switch control device comprises a second main control chip, a second digital signal input circuit, a digital signal output circuit, a switch switching and relay switching circuit, a second F L ASH storage circuit and a second RS485 communication circuit, wherein the second digital signal input circuit, the digital signal output circuit, the switch switching and relay switching circuit, the second F L ASH storage circuit and the second RS485 communication circuit are connected with the second main control chip.
2. The controller of claim 1, wherein the ac voltage sampling circuit comprises:
the voltage transformer, the first operational amplifier, the first resistor, the second resistor and the first capacitor; the primary side of the voltage transformer is respectively connected with a live wire and a zero line, the first resistor and the first capacitor are both connected in parallel to the secondary side of the voltage transformer, the first end of the secondary side of the voltage transformer is connected with the homodromous input end of the first operational amplifier, the second end of the secondary side of the voltage transformer is connected with the reverse input end of the first operational amplifier, the output end of the first operational amplifier is connected with the reverse input end of the first operational amplifier after being connected with the second resistor in series, and the output end of the first operational amplifier is used as the output end of the alternating voltage sampling circuit.
3. The controller of claim 2, wherein the alternating current sampling circuit and the zero sequence current sampling circuit each comprise:
the current transformer, the second operational amplifier, the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the second capacitor and the third capacitor; the third resistor and the second capacitor are both connected in parallel to the output end of the current transformer, the first output end of the current transformer is connected with the homodromous input end of the second operational amplifier, and the second output end of the current transformer is connected with a reference voltage; the output end of the second operational amplifier is connected with the reverse input end of the second operational amplifier after being connected with the fourth resistor in series and is connected with the same-direction input end of the third operational amplifier after being connected with the fifth resistor in series, and the output end of the second operational amplifier is used as the first output end of the current sampling circuit; the inverting input end of the third operational amplifier is connected with the reference voltage, and the output end of the third operational amplifier is used as the second output end of the current sampling circuit; the sixth resistor is connected in parallel with the third capacitor, the first common end is connected with the output end of the third operational amplifier, and the second common end is connected with the reverse input end of the third operational amplifier.
4. The controller of claim 3, wherein the temperature sampling circuit comprises:
the temperature sensor, the voltage stabilizing diode, the fourth capacitor, the fifth capacitor, the seventh resistor, the eighth resistor, the ninth resistor, the first inductor and the second inductor; one end of the fourth capacitor is connected with one end of the seventh resistor, one end of the eighth resistor and the power supply, the other end of the fourth capacitor is grounded, the other end of the eighth resistor serves as the output end of the temperature acquisition circuit, the voltage stabilizing diode is connected with the fifth capacitor in parallel, a first common end is connected with the other end of the seventh resistor and one end of the first inductor, a second common end is connected with one end of the ninth resistor and one end of the second inductor, the other end of the ninth resistor is grounded, and the other end of the first inductor and the other end of the second inductor are connected with the temperature sensor; the first common end is a common end where an anode of the voltage stabilizing diode is located.
5. The controller of claim 4, wherein the first digital signal input circuit and the second digital signal input circuit each comprise:
the photoelectric coupler, the tenth resistor, the eleventh resistor, the twelfth resistor and the thirteenth resistor; the first end of the photoelectric coupler is connected with the tenth resistor in series and then connected with an external switch, the eleventh resistor is connected with the first end and the second end of the photoelectric coupler in parallel, the third end of the photoelectric coupler is connected with a power supply, the fourth end of the photoelectric coupler is connected with one end of the twelfth resistor and one end of the thirteenth resistor, the other end of the twelfth resistor is grounded, and the other end of the thirteenth resistor is used as the output end of the digital signal input circuit.
6. The controller of claim 5, wherein the relay output circuit comprises:
the first triode, the first diode and the sixth capacitor; the base electrode of the first triode is connected with the first main control chip, the collector electrode of the first triode is connected with one end of a relay coil and a first common end of the first diode and the sixth capacitor after being connected in parallel, and the first diode and a second common end of the sixth capacitor are connected with a power supply and the other end of the relay coil; the first common end of the first diode and the sixth capacitor is the common end where the anode of the first diode is located, and the emitter of the first triode is grounded.
7. The controller of claim 6, wherein the RTC clock circuit comprises:
the circuit comprises a crystal oscillator, a clock chip, a standby battery and a second diode; the crystal oscillator is connected with the clock chip, the anode of the standby battery is connected with the power pin of the clock chip, the cathode of the standby battery is grounded, and the power pin of the clock chip is connected with the power supply after being connected with the second diode in series.
8. The controller of claim 7, wherein the first RS485 isolation communication circuit and the second RS485 isolation communication circuit each comprise:
the RS485 communication isolation chip, the first bidirectional transient suppression diode, the second bidirectional transient suppression diode, the fourteenth resistor and the fifteenth resistor; one end of the first bidirectional transient suppression diode is connected with a first pin of the RS485 communication isolation chip, the other end of the first bidirectional transient suppression diode is grounded, one end of the second bidirectional transient suppression diode is connected with a second pin of the RS485 communication isolation chip, the other end of the second bidirectional transient suppression diode is grounded, the first pin of the RS485 communication isolation chip is connected with the fourteenth resistor in series and then connected with a power supply, and the second pin of the RS485 communication isolation chip is connected with the fifteenth resistor in series and then grounded.
9. The controller of claim 8, wherein the digital signal output circuit comprises:
the second triode, the third triode and the second photoelectric coupler; the first end of the second photoelectric coupler is connected with a power supply, the second end of the second photoelectric coupler is connected with the collector of the second triode, the third end of the second photoelectric coupler is grounded, the fourth end of the second photoelectric coupler is connected with the base, the emitter and the power supply of the third triode, the base of the third triode is connected with the second main control chip, the emitter of the third triode is grounded, and the collector of the third triode is used as the output end of the digital signal output circuit.
10. The controller of claim 9, wherein the switch and relay switching circuit comprises:
the first relay, the second relay, the third relay, the first button switch, the second button switch, the third button switch and the fourth button switch are arranged on the switch; the first relay is respectively connected with the selector switch, the first button switch and the second button switch, and the second relay is respectively connected with the selector switch, the third button switch and the fourth button switch; the third relay is connected with the selector switch, an emitting electrode of the fourth triode and an emitting electrode of the fifth triode, base electrodes of the fourth triode and the fifth triode are connected with the second main control chip, a collector electrode of the fourth triode is connected with the second button switch, and a collector electrode of the fifth triode is connected with the fourth button switch; wherein each button switch is provided with an indicator light.
11. A control cabinet, characterized in that the control cabinet is provided with an integrated controller according to any one of claims 1 to 10.
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| CN201922329963.7U CN211018407U (en) | 2019-12-23 | 2019-12-23 | Integrated controller and control cabinet |
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| CN201922329963.7U CN211018407U (en) | 2019-12-23 | 2019-12-23 | Integrated controller and control cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117110706A (en) * | 2023-10-25 | 2023-11-24 | 青岛鼎信通讯股份有限公司 | Direct-current electric energy metering device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110706A (en) * | 2023-10-25 | 2023-11-24 | 青岛鼎信通讯股份有限公司 | Direct-current electric energy metering device and method |
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