CN216210615U - Intelligent switch circuit, intelligent switch and double-control switch system - Google Patents
Intelligent switch circuit, intelligent switch and double-control switch system Download PDFInfo
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- CN216210615U CN216210615U CN202122794795.6U CN202122794795U CN216210615U CN 216210615 U CN216210615 U CN 216210615U CN 202122794795 U CN202122794795 U CN 202122794795U CN 216210615 U CN216210615 U CN 216210615U
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Abstract
The utility model discloses an intelligent switch circuit, an intelligent switch and a double-control switch system, wherein the intelligent switch circuit comprises: the voltage detection module and the switch switching module are connected with the processor and connected with the first phase line end and the second phase line end; the first phase line end is used for being connected with an external mechanical double-control switch, the second phase line end is used for being connected with an external phase line or a load, and two terminals where contacts of the mechanical double-control switch are located are in short circuit; the voltage detection module is used for detecting the voltage of the first phase line end and outputting the detected voltage to the processor; the processor is used for controlling the switch switching module to change the on-off state according to the voltage change when the on-off state of the mechanical double-control switch changes. According to the scheme, the state conversion of the external mechanical double-control switch is detected through the voltage detection module, the original mechanical switch equipment can be compatible, and the circuit installation cost is reduced.
Description
Technical Field
The application relates to the technical field of circuits, in particular to an intelligent switch circuit, an intelligent switch and a double-control switch system.
Background
Along with the progress of science and technology level and standard of living, people are more and more used to installing intelligent equipment in order to promote the comfort level of living in the house environment, for example, carry out centralized control through equipment such as installation intelligence switch is used for realizing carrying out equipment such as lamps and lanterns in the house environment, can realize multiple functions such as timing control and whole room control from this. However, on the basis of the original existing mechanical switch, when the intelligent switch and the mechanical switch are installed to form the double-control switch, the intelligent switch is difficult to be compatible with the original mechanical switch.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides an intelligent switch circuit, an intelligent switch and a dual-control switch system.
In a first aspect, an embodiment of the present application provides an intelligent switching circuit, which includes a processor, a voltage detection module, and a switch switching module, where the voltage detection module and the switch switching module are both connected to the processor, and the voltage detection module and the switch switching module are both connected to a first phase line end and a second phase line end; the first phase line end is used for being connected with an external mechanical double-control switch, the second phase line end is used for being connected with an external phase line or a load, and two terminals where contacts of the mechanical double-control switch are located are in short circuit; the voltage detection module is used for detecting the voltage of the first phase line end and outputting the detected voltage to the processor; the processor is used for controlling the switch switching module to change the on-off state according to the change of the voltage when the on-off state of the mechanical double-control switch changes.
As a possible implementation manner, the voltage detection module includes a first voltage detection unit, and the first voltage detection unit is connected to the processor and the first phase terminal; the first voltage detection unit is used for detecting a voltage difference between the first phase line end and the ground to obtain a voltage of the first phase line end, converting the voltage of the first phase line end into a first voltage, and outputting the first voltage to the processor, wherein the first voltage is in an input voltage range corresponding to the processor; the processor is used for controlling the switch switching module to change the on-off state according to the change of the first voltage when the on-off state of the mechanical double-control switch changes.
As a possible implementation manner, the first voltage detection unit includes a first resistor, a second resistor, a third resistor, and a voltage follower, one end of the first resistor is connected to the first phase terminal, the other end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is connected to an input terminal of the voltage follower and one end of the third resistor, the other end of the third resistor is grounded, and an output terminal of the voltage follower is connected to the processor; the first resistor and the second resistor are used for forming voltage division with the third resistor so as to convert the voltage of the first phase line end into a first voltage; the voltage follower is used to increase the input impedance.
As a possible implementation manner, the voltage detection module further includes a second voltage detection unit, and the second voltage detection unit is connected to the processor and the second phase terminal; the second voltage detection unit is configured to detect a voltage difference between the second phase line end and ground to obtain a voltage of the second phase line end, convert the voltage of the second phase line end into a second voltage, and output the second voltage to the processor, where the first voltage is located in an input voltage range corresponding to the processor; the first phase terminal is also used for being connected with the phase line or the load, and the second phase terminal is also used for being connected with the mechanical double-control switch; the processor is further used for controlling the switch switching module to change the on-off state according to the change of the second voltage when the on-off state of the mechanical double-control switch changes.
As a possible implementation manner, the intelligent switch circuit further includes a power taking circuit, and the power taking circuit is connected to the first phase line terminal, the second phase line terminal and the processor; the electricity taking circuit is used for supplying power to the processor.
As a possible implementation manner, the power taking circuit includes a first power taking circuit and a second power taking circuit, the first power taking circuit is connected with the first phase line terminal, the second phase line terminal and the processor, and the second power taking circuit is connected with the processor and the second phase line terminal and is connected with the first phase line terminal through the switch switching module; the first power taking circuit is used for supplying power to the processor when the switch switching module is in a disconnected state; and the second power taking circuit is used for supplying power to the processor when the switch switching module is in a closed state.
As a possible implementation manner, the intelligent switch circuit further includes an energy storage power supply module, and the energy storage power supply module is connected to the processor, the first power taking circuit, the second power taking circuit, and the switch switching module; the energy storage power supply module is used for storing electric energy and supplying power to the processor and the switch switching module when the on-off state of the mechanical double-control switch changes.
In a second aspect, the present application provides an intelligent switch, which includes a housing, and an intelligent switch circuit disposed in the housing as provided in the first aspect.
In a third aspect, the present application provides a dual-control switch system, where the dual-control switch system includes a mechanical dual-control switch, a load, and an intelligent switch provided in the second aspect, where two contacts of the mechanical dual-control switch are short-circuited, a first phase line end is connected to one end of the mechanical dual-control switch, one end of the load is connected to a zero line, and the other end of the load is connected to the second phase line end or the other end of the mechanical dual-control switch.
As a possible implementation manner, the second phase terminal is connected to a phase line, and the other end of the load is connected to the other end of the mechanical double-control switch; or the other end of the load is connected with the second phase line end, and the other end of the mechanical double-control switch is connected with the phase line.
The technical scheme of the application comprises at least the following beneficial effects:
in the intelligent switch circuit that this application embodiment provided, intelligent switch circuit includes the treater, voltage detection module and switch switching module all are connected with the treater, voltage detection module and switch switching module all connect in first phase line end and second phase line end, first phase line end is used for being connected with outside two accuse switches of machinery, second phase line end is used for being connected with outside phase line or load, short circuit between two contact place terminals of two accuse switches of machinery. Therefore, the first phase line end of the intelligent switch can be connected with the mechanical double-control switch after the two contacts are in short circuit, the intelligent switch circuit can detect the change condition of the on-off state of the mechanical double-control switch through the voltage detection module and control the on-off state of the switch switching module according to the change condition of the on-off state of the double-control switch, so that the double-control function is realized, the installation cost of the intelligent switch is reduced, and the use experience of a user is improved.
These and other aspects of the embodiments of the present application will be more readily apparent from the following description of the embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced 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 based on these drawings without creative efforts.
Fig. 1 shows a schematic structure of a conventional dual-control switch circuit.
Fig. 2 shows a schematic structural diagram of an intelligent switching circuit provided in an embodiment of the present application.
Fig. 3 shows a connection diagram of the intelligent dual-control switch according to an embodiment of the present application.
Fig. 4 shows another connection diagram of the intelligent dual-control switch provided in the embodiment of the present application.
Fig. 5 shows another schematic structural diagram of the intelligent switching circuit provided in the embodiment of the present application.
Fig. 6 shows a schematic diagram of another structure of the intelligent switching circuit provided in the embodiment of the present application.
Fig. 7 shows a schematic structural diagram of an intelligent switching circuit provided in an embodiment of the present application.
Fig. 8 shows a schematic diagram of yet another structure of the intelligent switching circuit provided in the embodiment of the present application.
Fig. 9 shows yet another schematic structural diagram of the intelligent switching circuit provided in the embodiment of the present application.
Fig. 10 shows an overall structural schematic diagram of the intelligent switching circuit provided by the embodiment of the present application.
Fig. 11 shows a schematic diagram of an intelligent switch provided in an embodiment of the present application.
Fig. 12 is a schematic structural diagram of a dual-control switch system according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, 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.
In the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The double-control switch is a basic requirement for solving the convenient operation of switching of partial scenes in a power utilization environment. As shown in fig. 1, in the existing switches, a single live wire wiring mode is basically adopted, and double-control switch control is realized by two mechanical switches and two middle wires.
Along with the rapid development of smart homes, the intelligent switch is also popularized and applied, and the intelligent switch can be used for manually controlling and regularly controlling equipment such as lamps, so that the intelligent switch is popular among users. In practical applications, the intelligent switch is usually installed in the original power consumption environment, and therefore, a double-control switch is formed by the mechanical switch in the original power consumption environment and the newly installed intelligent switch. However, the inventor finds that the existing intelligent switch is often difficult to be compatible with the original mechanical switch of the home, and specifically, if the intelligent switch and the mechanical switch in the original power consumption environment form a dual-control switch, the original circuit layout needs to be changed, the installation is complex, and the user is difficult to debug the installed switch.
In view of the above problems, the inventors have made extensive studies and as a result have proposed an intelligent switch circuit 10, an intelligent switch, and a double-control switch system. The intelligent switching circuit 10 provided by the embodiment of the present application will be described in detail with reference to the accompanying drawings.
Referring to fig. 2, an embodiment of the present invention provides an intelligent switch circuit 10, which includes a processor 100, a voltage detection module 200, and a switch switching module 300. The voltage detection module 200 and the switch switching module 300 are both connected to the processor 100, and the voltage detection module 200 and the switch switching module 300 are both connected to the first phase line end and the second phase line end respectively.
In this embodiment, of the first phase end and the second phase end, the first phase end may be used to connect with an external mechanical dual-control switch, and the second phase end is used to connect with an external phase line or a load, so that the intelligent switch circuit 10 may form a circuit of the dual-control switch with the external mechanical dual-control switch, the load, the phase line, and the like. And the terminals where the two contacts of the mechanical double-control switch are short-circuited. In practical use for control, the voltage detection module 200 may detect the voltage of the first phase line terminal or the second phase line terminal by connecting the phase line terminals, and output the detected voltage to the processor 100; the processor 100 may determine whether the voltage at the first phase line end changes according to the voltage detected by the voltage detection module 200, and further determine whether an external mechanical dual-control switch is switched between an open state and a closed state, and further determine whether a connection state of the circuit changes.
When the processor 100 determines that the detected voltage changes, it determines that the on-off state of the mechanical dual-control switch changes, and thus controls the switch switching module 300 to change the on-off state, so as to change the connection state of the circuit. In addition, when the intelligent switch circuit 10 is applied to an intelligent switch, the switch switching module 300 can also be controlled, so that the connection state of the circuit can be controlled by both the mechanical double-control switch and the intelligent switch circuit 10, and a double-control switch circuit formed by the intelligent switch and the mechanical double-control switch can be realized. Therefore, when the intelligent switch circuit 10 is applied to the original circuit of the mechanical switch to form the double-control switch, the double-control switch circuit can be realized only by connecting the mechanical double-control switch in series with the intelligent switch circuit 10 after the mechanical double-control switch is short-circuited. Alternatively, the switch switching module 300 may be a control switch such as a relay, which is not limited herein.
Specifically, the first phase line end is connected to an external mechanical double-control switch, and because the terminals of the two contacts of the mechanical double-control switch are short-circuited, when the mechanical double-control switch dials the dial, that is, when the dial is dialed from one contact to the other contact, the dial does not contact the contact within a short period of time, and the circuit is in the off state during the period of time, a certain voltage change is generated at the first phase line end connected to the mechanical double-control switch, and the voltage change is detected by the voltage detection module 200 and transmitted to the processor 100, and the processor 100 can determine that the mechanical double-control switch is switched to the off state according to the voltage change at the first phase line end, so that the switch module 300 is controlled to change the on-off state, so that the on-off state of the double-control switch circuit is changed, and the on-off state of an external load is controlled.
In some embodiments, when the intelligent switch circuit 10 is connected to an external circuit, in one case, referring to fig. 3, the first phase line end may be connected to one end of a mechanical double-control switch (double-control switch 1), and the other end of the mechanical double-control switch is connected to the external phase line, where the second phase line end is connected to one end of a load, and the other end of the load is connected to the zero line; in another case, referring to fig. 4, the first phase line end is connected to one end of a mechanical double-control switch (double-control switch 2), the other end of the mechanical double-control switch is connected to one end of a load, the other end of the load is connected to the zero line, and the second phase line end is connected to the phase line.
In some embodiments, referring to fig. 5, the voltage detection module 200 may include a first voltage detection unit 210, wherein the first voltage detection unit 210 is connected to the processor 100 and the first phase terminal. In this embodiment, the first voltage detecting unit 210 is configured to detect a voltage difference between the first phase line terminal and the ground to obtain a voltage of the first phase line terminal. Due to the characteristics of the external mechanical double-control switch, when the mechanical double-control switch switches the on-off state, the first phase line end may generate a corresponding voltage change, and at this time, the first voltage detection unit 210 may detect the voltage of the first phase line end and output the voltage to the processor 100, so that the processor 100 may determine the state switching of the mechanical double-control switch according to the voltage change of the first phase line end in time, and perform corresponding control. In addition, when the actual smart switch circuit 10 and the external circuit form a dual-control switch circuit and are used for controlling the home equipment, the power supply voltage (the household electrical voltage is 220V) of the circuit is relatively large, so the first voltage detection unit 210 can be further configured to convert the detected voltage at the first phase terminal into a first voltage, and the first voltage is located in the input voltage range corresponding to the processor 100, so that the voltage input to the processor 100 by the first voltage detection unit 210 is the voltage that can be received by the processor 100, and the voltage conversion condition at the first phase terminal can be reflected, so that the processor 100 can determine the change of the on-off state of the mechanical dual-control switch.
It can be understood that, the first voltage detecting unit 210 converts the detected voltage at the first phase line end into a first voltage that can be received by the processor 100 and outputs the first voltage to the processor 100, at this time, the processor 100 can determine the voltage change condition at the first phase line end according to the change condition of the detected first voltage, and in a normal case, the voltage change at the first phase line end is caused by the switching of the on-off state of the mechanical double-control switch connected to the first phase line end, so that the processor 100 can directly determine that the mechanical double-control switch connected to the first phase line end switches the on-off state when detecting that the first voltage is greatly changed, and thus the processor 100 can control the corresponding switch to switch the on-off state, thereby implementing the control of the external mechanical double-control switch on the corresponding device.
In some embodiments, as shown in fig. 6, the first voltage detecting unit 210 provided in the embodiment of the present application may include at least a first resistor (R1), a second resistor (R2), a third resistor (R3), and a first voltage follower, wherein one end of the first resistor is connected to the first phase terminal, the other end of the first resistor is connected to one end of the second resistor, the other ends of the second resistor and the third resistor are connected to an input terminal of the first voltage follower, the other end of the third resistor is connected to ground, and an output terminal of the first voltage follower is connected to one voltage input interface of the processor 100.
In one embodiment, the first resistor, the second resistor, and the third resistor are connected in series between the first phase terminal and the ground, and the first resistor, the second resistor, and the third resistor are used to divide the voltage at the first phase terminal. Specifically, by connecting the second resistor and the third resistor to the input terminal of the first voltage follower, so that a voltage division is formed between the first resistor and the third resistor, it can be ensured that the voltage input to the first voltage follower is stable and has a proper range, which should be a range of voltage magnitude that the processor 100 can bear. The first voltage detecting unit 210 may stabilize the voltage input to the first voltage follower within a voltage range that the processor 100 can receive through the difference of the three resistance values. The resistance values of the first resistor, the second resistor, and the third resistor may be determined according to a voltage range that the processor 100 can bear, and the specific size thereof may not be limited. The first voltage follower is a device capable of realizing that the output voltage changes along with the input voltage, and the voltage amplification factor of the first voltage follower is smaller than and close to 1, that is, the function of the first voltage follower in the circuit is not generally used for amplifying the voltage, but is used for improving the input impedance, ensuring the accuracy of the voltage detection of the first voltage detection unit 210, and reducing the output impedance as a buffer stage and an isolation stage in the circuit of the first voltage detection unit 210.
In one embodiment, as shown in fig. 7, the voltage detection module 200 may further include a second voltage detection unit 220, and the second voltage detection unit 220 is connected to the processor 100 and the second phase terminal. The second voltage detection unit 220 may be configured to detect a voltage difference between the second phase line terminal and the ground, obtain a voltage of the second phase line terminal, convert the voltage into a second voltage that can be received by the processor 100, and output the second voltage to the processor 100, so that the processor 100 determines a state change of the external mechanical dual-control switch according to a change condition of the second voltage. The specific connection composition of the second voltage detection unit 220 is similar to that of the first voltage detection unit 210, and similarly, the second voltage detection unit 220 may include a fourth resistor, a fifth resistor, a sixth resistor, and a second voltage follower, where one end of the fourth resistor is connected to the second phase terminal, the other end of the fourth resistor is connected to one end of the fifth resistor, one end of the sixth resistor is grounded, the other end of the fifth resistor and the other end of the sixth resistor are both connected to the input end of the second voltage follower, and the output end of the second voltage follower is connected to another voltage input interface of the processor 100.
In this embodiment, the voltage detection module 200 includes the first voltage detection unit 210 and the second voltage detection unit 220 at the same time, so that the voltage changes of the first phase line end and the second phase line end can be detected, and thus when the user installs the intelligent switch circuit 10, the user can connect the mechanical double-control switch with any phase line end of the first phase line end and the second phase line end without distinguishing the first phase line end and the second phase line end, and can form the double-control switch circuit, thereby facilitating the user to install the intelligent switch circuit 10. Specifically, when the external mechanical double-control switch is connected to the first phase end, the other end of the mechanical double-control switch may be connected to the phase line, and the second phase end may be connected to the zero line through the load, at this time, the intelligent switch circuit 10 may detect the change of the open/close state of the external mechanical double-control switch through the first voltage detection unit 210 connected to the first phase end, so as to control the switch switching module 300 to change the open/close state; when the external mechanical double-control switch is connected to the second phase end, the other end of the mechanical double-control switch may be connected to the zero line through a load, and the second phase end may be connected to the phase line, at this time, the intelligent switch circuit 10 may detect a change condition of the open/close state of the external mechanical double-control switch through the second voltage detection unit 220 connected to the second phase end, so as to control the switch switching module 300 to change the open/close state.
In some embodiments, as shown in fig. 8, the intelligent switch circuit 10 provided in this embodiment of the present application may further include a power-taking circuit 400, where the power-taking circuit 400 may be connected to the first phase terminal, the second phase terminal, and the processor 100, and is configured to take power from the first phase terminal and the second phase terminal and supply the power to the processor 100, so as to provide a stable driving voltage for the processor 100.
In one possible implementation, the power-taking circuit 400 may include a first power-taking circuit 410 and a second power-taking circuit 420, wherein the first power-taking circuit 410 is connected to the first phase line terminal, the second phase line terminal and the processor 100, and the second power-taking circuit 420 is connected to the processor 100 and the second phase line terminal and is connected to the first phase line terminal through the switch switching module 300. The first power-taking circuit 410 and the second power-taking circuit 420 have similar structures and may include several functional modules of power taking, rectification, voltage stabilization, and the like, where the power-taking module is configured to obtain a voltage from the first phase terminal and the second phase terminal, the voltage is usually 220V ac voltage, and since the voltage is not suitable for being directly input to the processor 100, the voltage may be rectified, filtered, and stabilized by the rectification module and the voltage stabilization module, and finally output as a voltage that can be received by the processor 100. The first power-taking circuit 410 is configured to take power from the first phase line end and the second phase line end and supply the power to the processor 100 when the switch switching module 300 is in the off state, so that the processor 100 can be in the working state, and can determine the condition that the on-off state of the mechanical dual-control switch changes based on the voltage detected by the voltage detection module 200, and control the on-off state of the switch switching module 300. The second power-taking circuit 420 is connected between the first phase line end and the second phase line end through the switch switching module 300, and the second power-taking circuit 420 is configured to take power from the first phase line end and the second phase line end and supply the power to the processor 100 when the switch switching module 300 is in a connected state, so that the processor 100 can be in a normal working state. The second power-taking circuit 420 may be complementary to the first power-taking circuit 410, and the first power-taking circuit 410 and the second power-taking circuit 420 may supply power to the processor 100 when the switch switching module 300 is in different on-off states, so that the processor 100 may not be affected by the switch switching module 300 changing the on-off state, and further, it is ensured that the processor 100 can accurately determine the change of the on-off state of the external mechanical dual-control switch, and make a response, thereby controlling the corresponding load device to switch the on-off state.
In a possible implementation manner, as shown in fig. 9, the intelligent switch circuit 10 provided in the embodiment of the present application may further include an energy storage power supply module 500, where the energy storage power supply module 500 is connected to the processor 100, the first power taking circuit 410, the second power taking circuit 420, and the switch switching circuit. The energy storage and power supply module 500 is configured to obtain and store electric energy through the first power obtaining circuit 410 and the second power obtaining circuit 420, and is capable of supplying power to the processor 100 and the switch switching module 300 when an on-off state of an external mechanical dual-control switch changes, that is, when an on-off state of a dual-control switch circuit formed with an external circuit changes.
Alternatively, the energy storage power supply module 500 may include an energy storage device, such as an energy storage battery. In addition, when the first power-taking circuit 410 and the second power-taking circuit 420 include energy storage devices, such as capacitors, the energy storage power supply module 500 may also include energy storage devices in the first power-taking circuit 410 and the second power-taking circuit 420, which is not limited herein. When the energy storage device is an energy storage capacitor, the capacitance of the energy storage capacitor can be calculated according to a capacitance discharge formula and data such as the lowest working voltage of each module.
It should be noted that the above embodiments may be implemented in combination, for example, referring to fig. 10, the intelligent switch circuit 10 may include a processor 100, a first power-taking circuit 410, a second power-taking circuit 420, an energy storage power supply module 500, a first voltage detection unit 210, and a second voltage detection unit 220. The implementation principle of each module in the intelligent switching circuit 10 shown in fig. 10 can refer to the content of the foregoing embodiments, and is not described herein again.
The application provides an intelligent switch circuit 10, because be provided with the voltage detection module 200 that is used for detecting the phase line end of being connected with the two accuse switches of machinery in the intelligent switch circuit 10, consequently, can detect the change of this phase line end voltage, and then confirm the condition that the on-off state of the two accuse switches of machinery changes, and the switch switching module 300 of control intelligent switch circuit 10 changes the on-off state, make the on-off state of whole two accuse switch circuit change, and then can realize two accuse functions, make the two accuse switches of compatible outside machinery of intelligent switch.
As shown in fig. 11, an embodiment of the present application further provides an intelligent switch 20, where the intelligent switch 20 includes a housing 21 and the intelligent switch circuit 10 provided in the foregoing embodiment, where the intelligent switch circuit 10 is disposed in the housing 21.
As shown in fig. 12, an embodiment of the present application further provides a dual-control switch system 30, which includes a mechanical dual-control switch, a load, and the smart switch 20 provided in the foregoing embodiment. The terminals of the two contacts of the mechanical double-control switch are short-circuited, and the double-control switch system 30 can have two different connection modes, one connection mode is: the first phase terminal is connected with an external mechanical double-control switch, and the second phase terminal is connected with an external phase line or a load; there may also be another connection scenario: the first phase terminal is connected with a phase line or a load, and the second phase terminal is connected with an external mechanical double-control switch. In these two connection modes, from the perspective of safety, one end of the load needs to be connected with the zero line but cannot be directly connected with the live line, that is, the load needs to be connected with the live line through the intelligent switch 20.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill 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 necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An intelligent switch circuit is characterized by comprising a processor, a voltage detection module and a switch switching module, wherein the voltage detection module and the switch switching module are both connected with the processor, and are both connected with a first phase line end and a second phase line end;
the first phase line end is used for being connected with an external mechanical double-control switch, the second phase line end is used for being connected with an external phase line or a load, and two terminals where contacts of the mechanical double-control switch are located are in short circuit;
the voltage detection module is used for detecting the voltage of the first phase line end and outputting the detected voltage to the processor;
the processor is used for controlling the switch switching module to change the on-off state according to the change of the voltage when the on-off state of the mechanical double-control switch changes.
2. The intelligent switch circuit according to claim 1, wherein the voltage detection module comprises a first voltage detection unit, the first voltage detection unit is connected to the processor and the first phase terminal;
the first voltage detection unit is used for detecting a voltage difference between the first phase line end and the ground to obtain a voltage of the first phase line end, converting the voltage of the first phase line end into a first voltage, and outputting the first voltage to the processor, wherein the first voltage is in an input voltage range corresponding to the processor;
the processor is used for controlling the switch switching module to change the on-off state according to the change of the first voltage when the on-off state of the mechanical double-control switch changes.
3. The intelligent switch circuit according to claim 2, wherein the first voltage detection unit comprises a first resistor, a second resistor, a third resistor and a voltage follower, one end of the first resistor is connected to the first phase terminal, the other end of the first resistor is connected to one end of the second resistor, the other end of the second resistor is connected to the input end of the voltage follower and one end of the third resistor, the other end of the third resistor is grounded, and the output end of the voltage follower is connected to the processor;
the first resistor and the second resistor are used for forming voltage division with the third resistor so as to convert the voltage of the first phase line end into a first voltage;
the voltage follower is used to increase the input impedance.
4. The intelligent switch circuit according to claim 2, wherein the voltage detection module further comprises a second voltage detection unit, the second voltage detection unit being connected to the processor and the second phase terminal;
the second voltage detection unit is configured to detect a voltage difference between the second phase line end and ground to obtain a voltage of the second phase line end, convert the voltage of the second phase line end into a second voltage, and output the second voltage to the processor, where the second voltage is located in an input voltage range corresponding to the processor;
the first phase terminal is also used for being connected with the phase line or the load, and the second phase terminal is also used for being connected with the mechanical double-control switch;
the processor is further used for controlling the switch switching module to change the on-off state according to the change of the second voltage when the on-off state of the mechanical double-control switch changes.
5. The intelligent switching circuit according to any one of claims 1 to 4, further comprising a power-taking circuit, wherein the power-taking circuit is connected to the first phase line terminal, the second phase line terminal and the processor;
the electricity taking circuit is used for supplying power to the processor.
6. The intelligent switch circuit according to claim 5, wherein the power-taking circuit comprises a first power-taking circuit and a second power-taking circuit, the first power-taking circuit is connected with the first phase line terminal, the second phase line terminal and the processor, the second power-taking circuit is connected with the processor and the second phase line terminal, and is connected with the first phase line terminal through the switch switching module;
the first power taking circuit is used for supplying power to the processor when the switch switching module is in a disconnected state;
and the second power taking circuit is used for supplying power to the processor when the switch switching module is in a closed state.
7. The intelligent switching circuit according to claim 6, further comprising an energy storage power supply module, wherein the energy storage power supply module is connected to the processor, the first power taking circuit, the second power taking circuit, and the switching module;
the energy storage power supply module is used for storing electric energy and supplying power to the processor and the switch switching module when the on-off state of the mechanical double-control switch changes.
8. An intelligent switch, characterized in that the intelligent switch comprises a housing, and an intelligent switch circuit according to any one of claims 1-7 arranged in the housing.
9. A double-control switch system, characterized in that, it includes a mechanical double-control switch, a load and the intelligent switch of claim 8, the two contact points of the mechanical double-control switch are short-circuited between the terminals, the first phase line end is connected with one end of the mechanical double-control switch, one end of the load is connected with the zero line, the other end of the load is connected with the second phase line end or the other end of the mechanical double-control switch.
10. The dual control switch system according to claim 9, wherein the second phase terminal is connected to a phase line, and the other end of the load is connected to the other end of the mechanical dual control switch; or
The other end of the load is connected with the second phase line end, and the other end of the mechanical double-control switch is connected with the phase line.
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| CN202122794795.6U CN216210615U (en) | 2021-11-15 | 2021-11-15 | Intelligent switch circuit, intelligent switch and double-control switch system |
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| CN202122794795.6U CN216210615U (en) | 2021-11-15 | 2021-11-15 | Intelligent switch circuit, intelligent switch and double-control switch system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117479371A (en) * | 2023-12-26 | 2024-01-30 | 南昌英诺泰克科技有限公司 | Improved intelligent dimming control device |
| WO2024046036A1 (en) * | 2022-08-31 | 2024-03-07 | 华为技术有限公司 | Device control method, intelligent switch, and control system |
| WO2024067070A1 (en) * | 2022-09-30 | 2024-04-04 | 华为技术有限公司 | Device control method, intelligent switch and control system |
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2021
- 2021-11-15 CN CN202122794795.6U patent/CN216210615U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024046036A1 (en) * | 2022-08-31 | 2024-03-07 | 华为技术有限公司 | Device control method, intelligent switch, and control system |
| WO2024067070A1 (en) * | 2022-09-30 | 2024-04-04 | 华为技术有限公司 | Device control method, intelligent switch and control system |
| CN117479371A (en) * | 2023-12-26 | 2024-01-30 | 南昌英诺泰克科技有限公司 | Improved intelligent dimming control device |
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