Intelligent double-control single-live-wire switch
By designing interconnected auxiliary power supply modules in the intelligent dual-control single-wire switch, the problem of poor synchronization during power supply failures was solved, achieving stable system operation and high-reliability power supply, ensuring load state synchronization, and enhancing fault tolerance and safety.
Patent Information
- Application Number
- CN202520334941.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing intelligent dual-control single-wire switches have problems with poor fault synchronization, low safety, and insufficient power supply stability, which leads to asynchronous status of load lights and easy failure.
The system employs a first single-wire switch and a second single-wire switch, which are connected to an auxiliary power supply module via terminal J6 to provide emergency power to the interconnected lines. This ensures that the other switch can continue to supply power when either switch fails, and forces the load status to be synchronized, thereby enhancing fault tolerance and safety stability.
It achieves overall system stability and security under single-point failure conditions, synchronizes load status, improves power supply reliability, and avoids load status asynchrony problems caused by single-point failure.
Smart Images
Figure CN223798216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an intelligent dual-control single-wire switch. Background Technology
[0002] Intelligent dual-control single-wire switches utilize a mode where two or more single-wire switches control the same load light. They contain an internal intelligent module, the power of which is entirely supplied by a single live wire. Therefore, most intelligent single-wire switches on the market currently suffer from power supply difficulties. The current power supply method for intelligent dual-control single-wire switches involves simultaneously connecting the ports of both single-wire switches to the mains live wire and the load. This method easily leads to asynchrony between the states of the two single-wire switches at the load end. That is, if one single-wire switch malfunctions, the other cannot correctly synchronize its position, causing the load light to remain on, resulting in poor safety and insufficient power supply stability. Improvements and optimizations are proposed to address these issues. Utility Model Content
[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide an intelligent dual-control single-wire switch.
[0004] The technical solution adopted by this utility model of intelligent dual-control single-wire switch is as follows: It includes a first single-wire switch and a second single-wire switch. The first single-wire switch and the second single-wire switch each include an external high-voltage terminal, a main power module, an RF module, a relay control module, an auxiliary power supply module, and an external load terminal. The external high-voltage terminal is connected to the main power module. The main power module is used to supply power to the RF module, the relay control module, and the auxiliary power supply module. The relay control module is connected to the external load terminal and the RF module. The auxiliary power supply module is connected to the main power module. The auxiliary power supply module of the first single-wire switch and the auxiliary power supply module of the second single-wire switch are connected.
[0005] The external high-voltage terminal includes an access terminal J1 for connecting an external live wire L, the external load terminal includes an access terminal J3 for connecting an external load Ld1, and the auxiliary power supply module includes an access terminal J6 for connecting a single live wire switch.
[0006] The auxiliary power supply module also includes a resistor R37 connected to the access terminal J6, and the other end of the resistor R37 is connected to the 12V voltage output by the main power supply module 4.
[0007] The external high-voltage terminal also includes diodes D3 and D5 connected to the access terminal J1, and the external load terminal also includes diodes D6 and D7 connected to the access terminal J3.
[0008] The main power module includes a switching power supply module, a closed-state power extraction module, and a DC-DC converter module. The access terminal J1 is connected to the closed-state power extraction module. The output terminal of the external high-voltage terminal is connected to the input terminal of the switching power supply module. The output terminals of the switching power supply module and the closed-state power extraction module are stepped down by the DC-DC converter module and then used to power the RF module, the relay control module, and the auxiliary power supply module.
[0009] The advantages of this utility model of intelligent dual-control single-wire switch are: by connecting the auxiliary power supply module of two single-wire switches through the access terminal J6, when one switch fails, the other switch can provide emergency power through the interconnection line. Single point failure does not affect the overall operation of the system, the load status is forced to synchronize, the fault tolerance capability is enhanced, the safety and stability are higher, and the power supply reliability is high. Attached Figure Description
[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0011] Figure 1 This is a connection diagram of the intelligent dual-control single-wire switch of this utility model;
[0012] Figure 2 This is a schematic diagram of the working principle of the first single-wire switch of this utility model;
[0013] Figure 3 This is the circuit diagram of the external high-voltage terminal of this utility model;
[0014] Figure 4 This is the circuit schematic diagram of the external load terminal of this utility model;
[0015] Figure 5 This is the circuit diagram of the auxiliary power supply module of this utility model;
[0016] Figure 6 This is the circuit schematic diagram of the main power supply module of this utility model;
[0017] Figure 7 This is the circuit schematic diagram of the relay control module of this utility model; Detailed Implementation
[0018] like Figure 1-7As shown, the intelligent dual-control single-wire switch of this utility model includes a first single-wire switch 1 and a second single-wire switch 2. Both the first single-wire switch 1 and the second single-wire switch 2 include an external high-voltage terminal 3, a main power module 4, an RF module 5, a relay control module 6, an auxiliary power supply module 7, and an external load terminal 8. The external high-voltage terminal 3 is connected to the main power module 4, which supplies power to the RF module 5, the relay control module 6, and the auxiliary power supply module 7. The relay control module 6 is connected to the external load terminal 8 and the RF module 5. The auxiliary power supply module 7 is connected to the main power module 4. The first single-wire switch 1... The auxiliary power supply module 7 is connected to the auxiliary power supply module 7 of the second single-wire switch 2. The first single-wire switch 1 and the second single-wire switch 2 realize dual control function through RF wireless communication. The external high-voltage terminal 3 includes an access terminal J1 for external live wire L access. The external load terminal 8 includes an access terminal J3 for external load Ld1 access. The auxiliary power supply module 7 includes an access terminal J6 for power connection of the single-wire switch. The auxiliary power supply modules of the two single-wire switches are connected through the access terminal J6. When any switch fails, the other switch can provide emergency power through the interconnection line. Single-point failure does not affect the overall operation of the system. The load status is forced to synchronize, the fault tolerance capability is enhanced, the safety and stability are higher, and the power supply reliability is high.
[0019] The auxiliary power supply module 7 also includes a resistor R37 connected to the access terminal J6. The other end of the resistor R37 is connected to the voltage output terminal of the main power supply module 4 to avoid short circuit risk and ensure stable signal level.
[0020] The external high-voltage terminal 3 also includes diodes D3 and D5 connected to the access terminal J1, and the external load terminal 8 also includes diodes D6 and D7 connected to the access terminal J3.
[0021] The main power module 4 includes a switching power supply module, a closed-state power extraction module, and a DC-DC converter module. The access terminal J1 is connected to the closed-state power extraction module. The output terminal of the external high-voltage terminal 3 is connected to the input terminal of the switching power supply module. The output terminals of the switching power supply module and the closed-state power extraction module are stepped down by the DC-DC converter module and then used to power the RF module 5, the relay control module 6, and the auxiliary power supply module 7. The DC-DC converter module is used to convert the input DC voltage into a specific output DC voltage.
[0022] The switching power supply module includes a main chip 9, a transformer T1, a varistor R1, an electrolytic capacitor C1, a Schottky diode D10, and an electrolytic capacitor C4. The output of the external high-voltage terminal 3 is sent to the varistor R1 for surge protection, then to the electrolytic capacitor C1 for filtering, and finally to the main chip 9 for operation. The auxiliary winding of the transformer T1 is used to provide a stable voltage to the main chip 9. The output winding of the transformer T1 is rectified by the Schottky diode D10 and sent to the electrolytic capacitor C4 for filtering, and then to the DC-DC module.
[0023] The closed-state power supply module includes a MOSFET Q9, an input judgment circuit, an operational amplifier Q10, and a diode D9. The MOSFET Q9 is connected to the other end of the relay control module 6. The output pin of the operational amplifier Q10 is used to control the output conduction status of the MOSFET Q9. After the output of the MOSFET Q9 is sent to the input judgment circuit, it is rectified by the diode D9 and then output to the DC-DC module. The dual power supplies serve as backups for each other. The optimal power supply path is automatically selected according to the switching state, reducing the probability of downtime caused by micro-current interruption, achieving high-efficiency energy conversion, and effectively reducing power consumption.
[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.
Claims
1. An intelligent dual-control single-wire switch, comprising a first single-wire switch (1) and a second single-wire switch (2), characterized in that: Both the first single-wire switch (1) and the second single-wire switch (2) include an external high-voltage terminal (3), a main power module (4), an RF module (5), a relay control module (6), an auxiliary power supply module (7), and an external load terminal (8). The external high-voltage terminal (3) is connected to the main power module (4). The main power module (4) is used to supply power to the RF module (5), the relay control module (6), and the auxiliary power supply module (7). The relay control module (6) is connected to the external load terminal (8). The relay control module (6) is connected to the RF module (5). The auxiliary power supply module (7) is connected to the main power module (4). The auxiliary power supply module (7) of the first single-wire switch (1) and the auxiliary power supply module (7) of the second single-wire switch (2) are connected. The external high-voltage terminal (3) includes an access terminal J1 for external live wire L access, the external load terminal (8) includes an access terminal J3 for external load Ld1 access, and the auxiliary power supply module (7) includes an access terminal J6 for single live wire switch power connection.
2. The intelligent dual-control single-wire switch according to claim 1, characterized in that: The auxiliary power supply module (7) also includes a resistor R37 connected to the access terminal J6, and the other end of the resistor R37 is connected to the voltage output terminal of the main power supply module (4).
3. The intelligent dual-control single-wire switch according to claim 1, characterized in that: The external high-voltage terminal (3) also includes diodes D3 and D5 connected to the access terminal J1, and the external load terminal (8) also includes diodes D6 and D7 connected to the access terminal J3.
4. The intelligent dual-control single-wire switch according to claim 1, characterized in that: The main power module (4) includes a switching power supply module, a closed-state power extraction module and a DC-DC module. The access terminal J1 is connected to the closed-state power extraction module. The output terminal of the external high-voltage terminal (3) is connected to the input terminal of the switching power supply module. The output terminals of the switching power supply module and the closed-state power extraction module are stepped down by the DC-DC module and used to power the RF module (5), the relay control module (6) and the auxiliary power supply module (7).