CN219086391U

CN219086391U - Intelligent device and socket with power-off protection

Info

Publication number: CN219086391U
Application number: CN202222547946.2U
Authority: CN
Inventors: 朱榕槟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-26
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses an intelligent device and a socket with power-off protection, which comprises a current detection module, an amplifier module, a main control module and a switch module, wherein the current detection module detects a signal of a circuit and inputs the signal to the amplifier module after filtering, the amplifier module amplifies the signal and then transmits the signal to the main control module, the switch module is connected with a power supply, and the main control module is connected with the switch module and controls a switch of the switch module to be powered on and powered off. The utility model realizes the use state of the detection circuit, thereby intelligently powering off and protecting the safety of a power supply and a load.

Description

Intelligent device and socket with power-off protection

Technical Field

The utility model relates to the technical field of sockets, in particular to an intelligent device with power-off protection and a socket.

Background

The socket is one of the existing household appliances, is commonly used for connecting an electric appliance load and a power supply, is used as a bridge, is internally provided with a power-off switch for cutting off a circuit between the electric appliance load and the power supply, protects the electric appliance load, then the power-off switch is often required to be manually operated by a user to switch the switch, the intelligent degree is low, the existing requirements are difficult to meet, and even if the electric appliance load is in a standby state, the power is still consumed when the electric appliance load does not work, so that the socket capable of detecting the use state of a circuit and then intelligently powering off is required to be designed.

Disclosure of Invention

The utility model aims to provide an intelligent device with power-off protection and a socket.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an intelligent device with outage protection, includes and examines a class module, amplifier module, main control module and switch module, examine a class module signal and input to amplifier module after filtering of detection circuit, amplifier module is carried main control module after amplifying the signal, switch module links to each other with the power, main control module connects switch module and controls its switch and switch.

The direct current power supply is characterized by further comprising a rectifying module, a constant current and constant voltage module and a voltage reducing module, wherein the rectifying module is connected with a power supply and converts the power supply into direct current to be transmitted to the constant current and constant voltage module, the constant current and constant voltage module is respectively connected with the rectifying module and the voltage reducing module, and the voltage reducing module reduces the voltage of the received direct current.

Further, the rectifying module comprises a D1 rectifying bridge and a C1 filter capacitor, wherein the D1 rectifying bridge is connected with a 220V direct current power supply and rectifies the 220V direct current power supply into 220V direct current, and the C1 filter capacitor is connected with the D1 rectifying bridge to filter the 220V direct current and then transmit the filtered 220V direct current to the constant current and constant voltage module.

Further, the constant current and constant voltage module comprises a U1 constant current and constant voltage IC, an R4 resistor, an R5 resistor and a C2 filter capacitor, wherein the U1 constant current and constant voltage IC is connected with the R4 resistor and the R5 resistor for detecting the voltage fed back by the R4 resistor, the C2 filter capacitor is connected with the U1 constant current and constant voltage IC for keeping current and voltage stable, the voltage reducing module is connected with the stable current and voltage and then reduces 220V direct current to 5V direct current, and the voltage reducing module is respectively connected with the amplifier module and the main control module for supplying energy.

Further, the step-down module comprises a T1 transformer, a D2 diode, a C3 filter capacitor and an R6 resistor, wherein the T1 transformer is connected with the constant-current and constant-voltage module for step-down, the D2 diode is connected with the T1 transformer for rectifying the output of the T1 transformer after step-down, and the C3 filter capacitor is connected with the D2 diode for filtering the rectified voltage and stabilizing the voltage through the R6 resistor, and then respectively transmitting the voltage to the amplifier module and the main control module.

Further, the current detection module comprises an R1 resistor, an R2 resistor, an R3 resistor and a C4 filter capacitor, wherein the R1 resistor and the R2 resistor are connected with a power supply and detect signals to be transmitted to the R3 resistor for current limiting, and the C4 filter resistor is connected with the R3 resistor for filtering the signals after current limiting and then transmitting the signals to the amplifier module.

Further, the amplifier module comprises a C5 filter capacitor, a C8 filter capacitor and a U2 operational amplifier, wherein the C8 filter capacitor is connected with the C4 filter capacitor and the U2 operational amplifier and is used for filtering the input and output of signals of the U2 operational amplifier, and the U2 operational amplifier is connected with the main control module and transmits the amplified signals to the main control module.

Further, the main control module comprises a U3 singlechip, a Q1 triode, an R11 resistor and a light emitting diode, wherein the U3 singlechip is connected with a signal of a U2 operational amplifier and used for detecting the load and the size through the U3 singlechip, the R11 resistor is connected with a power supply and used for detecting whether a circuit has a load or not, the U3 singlechip is connected with a switch module through the Q1 triode to control the on-off of the circuit, and the light emitting diode is connected with the U3 singlechip and used for prompting the on-off state of the switch module.

Further, the switch module comprises a K1 relay and a D3 diode, wherein the K1 relay is respectively connected with two ends of the D3 diode and used for protecting the K1 relay from breakdown and burning by induced voltage, and the K1 relay is respectively connected with a Q1 triode and a power supply and used for switching on and off.

A smart socket with power-off protection comprises the smart device with power-off protection for the socket.

After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:

according to the utility model, whether the load of the circuit is in a working state or not is detected by the current detection module, the detection signal is amplified by the amplifier module and then is transmitted to the main control module, the main control module is utilized to identify the load, when the detected signal is lower than a preset threshold value, the load is judged to be not working, the switch module is closed to conduct power-off, and when the detected signal is higher than the preset threshold value, the switch module is kept to be continuously connected with a power supply, so that the use state of the circuit can be detected, and further intelligent power-off is realized.

Drawings

FIG. 1 is a block diagram of a system architecture of the present utility model;

fig. 2 is a schematic diagram of the circuit of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that, in the present utility model, terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element of the present utility model must have a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

Referring to fig. 1 and 2, the utility model discloses an intelligent device with power-off protection, which comprises a current detection module, an amplifier module, a main control module, a switch module, a rectifying module, a constant-current constant-voltage module and a voltage reduction module.

The current detection module detects signals of the circuit and inputs the signals into the amplifier module after filtering, the amplifier module amplifies the signals and then transmits the signals to the main control module, the switch module is connected with the power supply, and the main control module is connected with the switch module and controls the switch of the switch module to be powered on and powered off.

The current detection module comprises an R1 resistor, an R2 resistor, an R3 resistor and a C4 filter capacitor, wherein the R1 resistor and the R2 resistor are connected with a power supply and detect signals to be transmitted to the R3 resistor for current limiting, and the C4 filter resistor is connected with the R3 resistor for filtering the signals after current limiting and then transmitting the signals to the amplifier module.

The amplifier module comprises a C5 filter capacitor, a C8 filter capacitor, a U2 operational amplifier, an R7 resistor and an R8 resistor, wherein the C8 filter capacitor is connected with the C4 filter capacitor and the U2 operational amplifier for input and output filtering of signals of the U2 operational amplifier, the U2 operational amplifier is connected and transmits amplified signals to the main control module, and the R7 resistor and the R8 resistor are resistors for adjusting the amplification factor of the U2 operational amplifier.

The main control module comprises a U3 single chip microcomputer, a Q1 triode, a R10 resistor, a R11 resistor, a R12 resistor, a light emitting diode LED1 and a C6 filter capacitor, wherein the U3 single chip microcomputer is connected with a signal of a U2 operational amplifier and used for detecting the load and the size through the U3 single chip microcomputer, the load signal is detected to be larger than or smaller than a preset threshold value in the U3 single chip microcomputer, the R11 resistor is connected with a power supply and used for detecting whether a circuit has a load, the U3 single chip microcomputer is connected with a switch module through the Q1 triode to control the on-off of the switch module, and the light emitting diode is connected with the U3 single chip microcomputer and used for prompting the on-off state of the switch module.

The C6 filter capacitor is a filter capacitor of the U3 singlechip, is connected with a power supply, namely a voltage reduction module, and performs filtering, so that the singlechip works more stably, the R10 resistor and the R12 resistor are both current limiting resistors, the R12 resistor is used for limiting current of the light-emitting diode, the light-emitting diode LED1 is prevented from being burnt out due to overlarge current, and the R10 resistor is used for protecting the singlechip from being broken by sudden surge current.

R11 is a detection resistor, and the function of the detection resistor is to detect whether a load exists or not, and once the detection of the load exists, the U3 singlechip starts the K1 relay to start working, so that a triggering function is achieved.

The switch module comprises a K1 relay and a D3 diode, wherein the K1 relay is respectively connected with two ends of the D3 diode and used for protecting the K1 relay from breakdown and burning by induced voltage, and the K1 relay is respectively connected with a Q1 triode and a power supply and used for switching on and off.

The working principle for detecting whether the socket has a load or not is as follows: the R3 resistor is a current limiting resistor for preventing the U2 operational amplifier from being burnt due to overlarge current, the R1 resistor and the R2 resistor are current detecting resistors, the detected current is input into the U2 operational amplifier in the amplifier module through C4 capacitance filtering, and the amplified signal is input into a detection IO port of the U3 singlechip through the R9 resistor after being amplified in the U2 operational amplifier.

The working principle for detecting whether the socket has a load is as follows: r11 is the detection resistance, has also played the effect of current-limiting simultaneously, has also protected U3 singlechip not burnt when detecting, and power is connected to R11 detection resistance one end, and U3 singlechip is connected to one end, and the signal that has the load just can be received through R11 detection resistance to the U3 singlechip that has the load once, thereby judge to have the load.

The main control module controls the specific working principle of the switch module: the U3 singlechip is a main control MCU, wherein the 5 pins of the singlechip are pins for receiving signals of the U2 operational amplifier, the conditions of the loads are judged by detecting the signals amplified by the U2 operational amplifier, the working state of the K1 relay is determined, the state of the K1 relay is determined by controlling the switch of the Q1 triode through the U3 singlechip, the Q1 triode is conducted, the K1 relay is opened, and the Q1 triode is closed, so that the connection between the mains supply and the loads is disconnected.

When the pin 5 of the U3 singlechip detects that the signal amplified by the U2 operational amplifier is smaller than the value set in the U3 singlechip, the U3 singlechip controls the Q1 triode to close the K1 relay, so that the connection between the mains supply and the load is disconnected, and when the detected value is larger than the value set in the U3 singlechip, the singlechip always controls the Q1 triode to be in a conducting state, and the K1 relay continuously works.

The built-in detection set value is preset data, and can be adjusted by a developer according to the requirement by controlling the U3 singlechip, and the embodiment is not limited.

In addition, the U3 singlechip is inside to have timing function, and when K1 relay opened the during operation, the inside timer of U3 singlechip will start the work, reaches the U3 singlechip after the timing time, will control Q1 triode disconnection, closes K1 relay, breaks off the connection of commercial power and load. In the middle of timing, when the U3 singlechip detects that the signal from the U2 operational amplifier is smaller than the set value, the timing is correspondingly closed, if the detected value of the U3 singlechip is always larger than the set value, the K1 relay is always in a working state, and then the timer in the U3 singlechip is closed after the time is reached.

According to the embodiment, whether the load is in the working state or not is detected by the current detection module, the detection signal is amplified by the amplifier module and then is transmitted to the main control module, the main control module is utilized to identify the load, when the detected signal is lower than the preset threshold value, the load is judged to be not working, the switch module is closed to power off, and if the detected signal is lower than the preset threshold value, the switch module is kept to be continuously connected with the power supply, so that the use state of the circuit can be detected, and further intelligent power off is realized.

The rectification module is connected with a power supply and converts the power supply into direct current to be transmitted to the constant-current constant-voltage module, the constant-current constant-voltage module is respectively connected with the rectification module and the voltage reduction module, and the voltage reduction module reduces the voltage of the received direct current.

The rectification module comprises a D1 rectification bridge and a C1 filter capacitor, wherein the D1 rectification bridge is connected with a 220V direct current power supply and rectifies the 220V direct current power supply into 220V direct current, and the C1 filter capacitor is connected with the D1 rectification bridge to filter the 220V direct current and then transmit the filtered 220V direct current to the constant current and constant voltage module.

The constant-current constant-voltage module comprises a U1 constant-current constant-voltage IC, an R4 resistor, an R5 resistor and a C2 filter capacitor, wherein the U1 constant-current constant-voltage IC is connected with the R4 resistor and the R5 resistor for detecting the feedback voltage of the constant-current constant-voltage IC, the C2 filter capacitor is connected with the U1 constant-current constant-voltage IC for keeping the current and the voltage stable, the U1 constant-current constant-voltage IC is used for detecting the feedback voltage of the R4 resistor and the R5 resistor so that the current and the voltage are at a certain value, the voltage reducing module is connected with the stable current and the voltage and then reduces the 220V direct current to the 5V direct current, and the voltage reducing module is respectively connected with the amplifier module and the main control module for supplying energy.

The step-down module comprises a T1 transformer, a D2 diode, a C3 filter capacitor and an R6 resistor, wherein the T1 transformer is connected with the constant-current and constant-voltage module for step-down, the D2 diode is connected with the T1 transformer for rectifying the output of the T1 transformer after step-down, and the C3 filter capacitor is connected with the D2 diode for filtering the rectified voltage and respectively transmitting the voltage to the amplifier module and the main control module after stabilizing the voltage through the R6 resistor.

The R6 resistor is a dummy load resistor.

D2 is preferably a schottky diode, and functions to rectify the output of the T1 transformer after the voltage is reduced; the function of the C3 filter capacitor is to filter the output after the voltage is reduced by the T1 transformer and the rectification of the D2 Schottky diode, so that the potential of the output is more stable, and the U2 operational amplifier and the U3 singlechip are always in a stable working state.

The filter capacitor in this embodiment is preferably an aluminum capacitor, and the connection modes between the modules are all preferably electrical connections.

In this embodiment, when the socket does not have any load, the socket is in a closed state, when we upload, the U3 singlechip detects that we have a load and then starts working, when the 5 pin of the U3 singlechip detects that the load is smaller than a set value, the socket is closed to disconnect the mains supply and the connection of the load, namely, the main control module controls the switch module to be powered off, at the moment, the socket still has the load, if the socket needs to be restarted, after the load needs to be taken off from the socket, the load is connected to the socket again, and when the load is pulled out and plugged, the socket is restarted after the R11 detection resistor detects the load.

In a second embodiment, an intelligent socket with power-off protection includes the intelligent device with power-off protection for a socket, and the embodiment applies each structural module of the intelligent device for power-off protection of a socket, not only limited to the socket, but also includes a plugboard.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. An intelligent device with power-off protection, characterized in that: the current detection module detects signals of a circuit and inputs the signals into the amplifier module after filtering, the amplifier module amplifies the signals and then transmits the signals to the main control module, the switch module is connected with a power supply, and the main control module is connected with the switch module and controls the switch of the switch module to be powered on and powered off.

2. A smart device with power-down protection as recited in claim 1, wherein: the direct current transformer comprises a power supply, a constant current and constant voltage module and a voltage reducing module, wherein the power supply is connected with the power supply, the power supply is used for converting the power supply into direct current, the direct current is transmitted to the constant current and constant voltage module, the constant current and constant voltage module is respectively connected with the power supply and the voltage reducing module, and the voltage reducing module is used for reducing the voltage of the received direct current.

3. A smart device with power-down protection as claimed in claim 2, wherein: the rectification module comprises a D1 rectification bridge and a C1 filter capacitor, wherein the D1 rectification bridge is connected with a 220V direct current power supply and rectifies the 220V direct current power supply into 220V direct current, and the C1 filter capacitor is connected with the D1 rectification bridge to filter the 220V direct current and then transmit the filtered 220V direct current to the constant current and constant voltage module.

4. A smart device with power-down protection as recited in claim 3, wherein: the constant-current constant-voltage module comprises a U1 constant-current constant-voltage IC, an R4 resistor, an R5 resistor and a C2 filter capacitor, wherein the U1 constant-current constant-voltage IC is connected with the R4 resistor and the R5 resistor for detecting the voltage fed back by the R4 resistor, the C2 filter capacitor is connected with the U1 constant-current constant-voltage IC for keeping current and voltage stable, the voltage reducing module is connected with the stable current and voltage and then reduces 220V direct current to 5V direct current, and the voltage reducing module is respectively connected with the amplifier module and the main control module for supplying energy.

5. A smart device with power-down protection as recited in claim 4, wherein: the step-down module comprises a T1 transformer, a D2 diode, a C3 filter capacitor and an R6 resistor, wherein the T1 transformer is connected with the constant-current and constant-voltage module for step-down, the D2 diode is connected with the T1 transformer for rectifying the output of the T1 transformer after step-down, and the C3 filter capacitor is connected with the D2 diode for filtering the rectified voltage and stabilizing the voltage through the R6 resistor and then respectively transmitting the voltage to the amplifier module and the main control module.

6. A smart device with power-down protection as recited in claim 1, wherein: the current detection module comprises an R1 resistor, an R2 resistor, an R3 resistor and a C4 filter capacitor, wherein the R1 resistor and the R2 resistor are connected with a power supply and detect signals and are transmitted to the R3 resistor for current limiting, and the C4 filter capacitor is connected with the R3 resistor for filtering the signals after current limiting and then transmitting the signals to the amplifier module.

7. The smart device with power-down protection of claim 6, wherein: the amplifier module comprises a C5 filter capacitor, a C8 filter capacitor and a U2 operational amplifier, wherein the C8 filter capacitor is connected with the C4 filter capacitor and the U2 operational amplifier and is used for filtering the input and output of signals of the U2 operational amplifier, and the U2 operational amplifier is connected with the main control module and transmits the amplified signals to the main control module.

8. A smart device with power-down protection as recited in claim 7, wherein: the main control module comprises a U3 singlechip, a Q1 triode, an R11 resistor and a light emitting diode, wherein the U3 singlechip is connected with a signal of a U2 operational amplifier and used for detecting the load and the size through the U3 singlechip, the R11 resistor is connected with a power supply and used for detecting whether a circuit has a load or not, the U3 singlechip is connected with a switch module through the Q1 triode to control the on-off of the switch module, and the light emitting diode is connected with the U3 singlechip and used for prompting the on-off state of the switch module.

9. A smart device with power-down protection as recited in claim 8, wherein: the switch module comprises a K1 relay and a D3 diode, wherein the K1 relay is respectively connected with two ends of the D3 diode and used for protecting the K1 relay from breakdown and burning caused by induced voltage, and the K1 relay is respectively connected with a Q1 triode and a power supply and used for switching on and off.

10. A smart jack with power-off protection, comprising a smart device with power-off protection as claimed in any one of claims 1 to 9.