Single wire intelligent switch

Abstract

This invention relates to the field of intelligent switch technology, specifically a single-wire intelligent switch, including an internal control system and a switch control circuit. The control system includes a WIFI module, a manual circuit, and a relay driver. The switch control circuit is connected to the control system and is used to enable the switch to be used in traditional single-wire switch boxes and in situations with both neutral and live wires, allowing for both on-site manual operation and remote operation via the internet. When used in situations with both neutral and live wires, the switch control circuit includes power supply from AC-L and AC-N circuits connected to the switch box, via a rectifier bridge D5 and a DC-DC converter circuit, to power the internal circuit and achieve its functions.

Description

Technical Field

[0001] This invention relates to the field of single-wire intelligent switch technology, and in particular to single-wire intelligent switches. Background Technology

[0002] Currently, MCUs are used to control single-wire switches in the market. However, these MCUs are susceptible to various interferences, which can easily lead to uncontrolled malfunctions. Trigger IC modules with trigger-type outputs, especially capacitive touch ICs, have low anti-interference capabilities, and their switches are also prone to uncontrolled malfunctions. Summary of the Invention

[0003] The purpose of this invention is to provide a single-wire intelligent switch to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a single-wire intelligent switch, including an internal control system and a switch control circuit;

[0005] The control system includes a WIFI module, a manual circuit, and a relay driver;

[0006] The switch control circuit is connected to the control system to enable the switch to be used in traditional single-wire switch boxes and in situations with neutral / live dual wires, allowing for both on-site manual operation and remote operation via the Internet.

[0007] Preferably, the switch control circuit includes, when used in applications with both neutral and live wires, accessing AC-L and AC-N from the switch box, and supplying internal power via rectifier bridge D5 and DC-DC converter circuit to realize the circuit function.

[0008] Preferably, the switch control circuit includes, when used to replace a traditional single-wire switch, a circuit formed by the live wire AC-L, the switch output L-OUT1, and external loads such as light bulbs connected to AC-N, which provides power to the intelligent module and the operating circuit via rectifier bridge D5, diode D8, and the internal circuit of the DC-DC converter.

[0009] Preferably, when the load is an LED and the power is less than 3W, the switch control circuit needs to connect a 2.2uF safety capacitor with a withstand voltage of AC275V in parallel with the LED.

[0010] Preferably, in the switch control circuit, when the live wires L and L1 are connected, D5 is de-energized, and +12V and +3.3V are obtained by rectification by Q1, Q2 and D3, D4. U1 monitors V+, and drives Q1 and Q2 when the voltage is higher than 12.3V to stabilize the power supply.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The single-wire intelligent switch designed in this application can be used in traditional single-wire switch boxes and in situations with neutral / live dual wires, enabling on-site manual operation and remote operation via the Internet, making it convenient for users and adaptable to a wide range of applications. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a diagram of the switch control circuit and control system of the present invention;

[0015] Figure 2 This is a circuit diagram of the switch control circuit of the present invention;

[0016] Figure 3 This is a structural view of the single-wire intelligent switch of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 3 The present invention provides a technical solution:

[0019] A single-wire intelligent switch, including an internal control system and a switch control circuit;

[0020] The control system includes a WIFI module, a manual circuit, and a relay driver;

[0021] The switch control circuit is connected to the control system to enable the switch to be used in traditional single-wire switch boxes and in situations with neutral / live dual wires, allowing for both on-site manual operation and remote operation via the Internet.

[0022] The switch control circuit includes, when used in applications with both neutral and live wires, accessing AC-L and AC-N from the switch box, and supplying internal power via rectifier bridge D5 and DC-DC converter circuit to realize the circuit function.

[0023] The switch control circuit, when used to replace a traditional single-wire switch, includes a circuit formed by the live wire AC-L, the switch output L-OUT1, and external loads such as light bulbs connected to AC-N. The circuit then provides power to the intelligent module and the operating circuit via rectifier bridge D5, diode D8, and the internal circuit of the DC-DC converter.

[0024] When the load is an LED and the power is less than 3W, the switch control circuit needs to connect a 2.2uF safety capacitor with a withstand voltage of AC275V in parallel with the LED.

[0025] When the live wires L and L1 are connected, D5 is de-energized. +12V and +3.3V are obtained by rectification by Q1, Q2 and D3, D4. U1 monitors V+ and drives Q1 and Q2 when the voltage is higher than 12.3V to stabilize the power supply.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A single-wire intelligent switch, characterized in that: This includes the internal control system and the switch control circuit; The control system includes a WIFI module, a manual circuit, and a relay driver; The switch control circuit is connected to the control system to enable the switch to be used in traditional single-wire switch boxes and in situations with neutral / live dual wires, allowing for both on-site manual operation and remote operation via the Internet.

2. The single-wire intelligent switch according to claim 1, characterized in that: The switch control circuit includes, when used in applications with both neutral and live wires, accessing AC-L and AC-N from the switch box, and supplying internal power via rectifier bridge D5 and DC-DC converter circuit to realize the circuit function.

3. The single-wire intelligent switch according to claim 1, characterized in that: The switch control circuit, when used to replace a traditional single-wire switch, includes a circuit formed by the live wire AC-L, the switch output L-OUT1, and external loads such as light bulbs connected to AC-N. The circuit then provides power to the intelligent module and the operating circuit via rectifier bridge D5, diode D8, and the internal circuit of the DC-DC converter.

4. The single-wire intelligent switch according to claim 1, characterized in that: When the load is an LED and the power is less than 3W, the switch control circuit needs to connect a 2.2uF safety capacitor with a withstand voltage of AC275V in parallel with the LED.

5. The single-wire intelligent switch according to claim 1, characterized in that: When the live wires L and L1 are connected, D5 is de-energized. +12V and +3.3V are obtained by rectification by Q1, Q2 and D3, D4. U1 monitors V+ and drives Q1 and Q2 when the voltage is higher than 12.3V to stabilize the power supply.

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