Drying and washing power switching device based on single-chip microcomputer control

Abstract

A drying and washing power switching device based on single chip microcomputer control comprises a shell, a controller is arranged in the shell, a current sensor is connected to the controller, and the current sensor is used for detecting the current value of a washing machine, converting the current value into an AD value and transmitting the AD value to the controller; the controller is connected with a trigger, the trigger is used for controlling the off state or the power-on state of the relay, and the relay is used for reducing or recovering the power of the dryer; and the current sensor is also electrically connected with a dryer power supply input end and a washing machine power supply socket so as to accurately detect a current value.

Description

Technical field:

[0001] The utility model relates to a drying and washing power switching device based on single chip microcomputer control. Background technology:

[0002] Household appliances refer to various electrical and electronic devices used in homes and similar places. They free people from heavy, trivial and time-consuming housework, create a more comfortable, beautiful and healthy living and working environment for humans, provide rich and colorful cultural and entertainment conditions, and have become a necessity of modern family life.

[0003] Among them, washing machines and dryers are indispensable household appliances in people's daily lives. Washing machines are cleaning appliances that use electrical energy to generate mechanical action to wash clothes. Dryers are machines that, under the suction force of the fan, allow fresh cold air from outside to pass through the air inlet and undergo heat exchange with the heater to become dry hot air. The air is then discharged from the machine body after heat exchange with the clothes tumbling in the drum. The moisture in the clothes in the drum gradually evaporates and dries under the action of the dry hot air.

[0004] Generally, washing machines and dryers are installed in the same area and share the same socket. When the working current is too large, the socket and wires will heat up, which may easily cause safety accidents, damage the washing machine and dryer, and affect the service life of the washing machine and dryer. Utility model content:

[0005] The embodiment of the utility model provides a drying and washing power switching device based on single-chip microcomputer control. It has a reasonable structural design and is based on the integrated control principle of the single-chip microcomputer. It can automatically adjust the working power of the dryer when the two machines are running at high power at the same time and exceed the limit value. When the power of the washing machine is reduced, the power of the dryer is switched to a high-power state, avoiding the phenomenon of overheating of the socket and wires during actual use, improving the safety of the device, and solving the problems existing in the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A washing and drying power switching device based on single-chip microcomputer control includes a housing, a controller is provided in the housing, and a current sensor is connected to the controller. The current sensor is used to detect the current value of the washing machine and convert it into an AD value to transmit to the controller;

[0008] A trigger is connected to the controller, and the trigger is used to control the disconnection state or the power state of the relay, and the relay is used to reduce or restore the power of the dryer;

[0009] The current sensor is also electrically connected to the dryer power input terminal and the washing machine power socket to accurately detect the current value.

[0010] An external connection terminal connected to the power input end of the dryer and the power socket of the washing machine is provided on the top of the shell.

[0011] A display screen connected to the controller is provided on the housing, and the display screen is used to display the current detection value and the power value of the dryer; a plurality of operation buttons are provided at the lower part of the housing.

[0012] The model of the controller is APT-32F102B, and 24 pins are provided on the controller. The controller is connected to the trigger through pin 13, and the controller is connected to the current sensor through pin 7; the controller is connected to the operation button through pins 19, 20, 21 and 22.

[0013] The trigger is an NPN transistor, and a relay is connected to the collector of the transistor. The model of the relay is SJ-S-112LM; the base of the transistor is connected to the 13th pin of the controller through a 1k resistor.

[0014] The model of the current sensor is ACS712, and 8 pins are provided on the current sensor. Pin No. 7 of the current sensor is connected to pin No. 7 of the controller.

[0015] A buffer connecting rod is provided in the middle section of the shell to improve the stability of the shell.

[0016] The utility model adopts the above structure, detects the AD value of the washing machine's current through the Hall effect-based current sensor ACS712, and transmits it to the single-chip microcomputer APT-32F102B. When it is detected that the current exceeds a predetermined value and lasts for a certain period of time, a trigger responds, disconnects the relay and reduces the power of the dryer; the power input end of the dryer and the power socket of the washing machine are electrically connected through external wiring terminals, which facilitates the electrical connection of the equipment; the current detection value and the power value of the dryer are displayed on the display screen; and the stability of the housing is improved by a buffer connecting rod provided on the housing. The utility model has the advantages of safety, practicality, speed and accuracy. Description of the drawings:

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is the electrical schematic diagram of the utility model.

[0019] In the figure, 1. housing, 2. external wiring terminals, 3. display screen, 4. operation buttons, 5. buffer connecting rod. Specific implementation method:

[0020] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0021] like Figure 1-2 As shown in , a washing and drying power switching device based on single-chip microcomputer control includes a housing 1, a controller is provided in the housing 1, and a current sensor is connected to the controller. The current sensor is used to detect the current value of the washing machine and convert it into an AD value to transmit to the controller;

[0022] A trigger is connected to the controller, and the trigger is used to control the disconnection state or the power state of the relay, and the relay is used to reduce or restore the power of the dryer;

[0023] The current sensor is also electrically connected to the dryer power input terminal and the washing machine power socket to accurately detect the current value.

[0024] An external connection terminal 2 connected to the power input terminal of the dryer and the power socket of the washing machine is provided on the top of the housing.

[0025] A display screen connected to the controller is provided on the housing, and the display screen 3 is used to display the current detection value and the power value of the dryer; a plurality of operation buttons 4 are provided at the lower part of the housing.

[0026] The model of the controller is APT-32F102B, and 24 pins are provided on the controller. The controller is connected to the trigger through pin 13, and the controller is connected to the current sensor through pin 7; the controller is connected to the operation button through pins 19, 20, 21 and 22.

[0027] The trigger is an NPN transistor, and a relay is connected to the collector of the transistor. The model of the relay is SJ-S-112LM; the base of the transistor is connected to the 13th pin of the controller through a 1k resistor.

[0028] The model of the current sensor is ACS712, and 8 pins are provided on the current sensor. Pin No. 7 of the current sensor is connected to pin No. 7 of the controller.

[0029] A buffer connecting rod 5 is provided in the middle section of the housing to improve the stability of the housing.

[0030] The working principle of the drying and washing power switching device based on single-chip microcomputer control in the embodiment of the present invention is: based on the integrated control principle of the single-chip microcomputer, it can automatically adjust the working power of the dryer when the two machines are running at high power at the same time and exceed the limit value. When the power of the washing machine is reduced, the power of the dryer is switched to a high-power state, avoiding the phenomenon of overheating of the socket and wires during actual use, thereby improving the safety of the device.

[0031] Since many household electrical sockets have current limitations, there are strict requirements on the overall current and operating power when multiple household appliances share one socket.

[0032] The overall solution includes a shell, in which a controller is provided. A current sensor is connected to the controller, and the current sensor is used to detect the current value of the washing machine and convert it into an AD value for transmission to the controller; a trigger is connected to the controller, and the trigger is used to control the disconnection state or the power-on state of the relay, and the relay is used to reduce or restore the power of the dryer; the current sensor is also electrically connected to the dryer power input terminal and the washing machine power socket to accurately detect the current value.

[0033] The core component of this application is a controller, model APT-32F102B, which has 24 pins. The controller is connected to the trigger through pin 13, and is connected to the current sensor through pin 7; the controller is connected to the operation button through pin 19, pin 20, pin 21 and pin 22, thus forming an overall hardware circuit, and relies on the above-mentioned overall hardware circuit to realize current detection and power regulation switching.

[0034] For other functional pins on the controller, functions can be expanded and other electrical components can be connected to further ensure the functionality of the switching device.

[0035] Preferably, the trigger is an NPN transistor, and a relay is connected to the collector of the transistor, and the model of the relay is SJ-S-112LM; the base of the transistor is connected to the 13th pin of the controller through a 1k resistor.

[0036] Preferably, the model of the current sensor is ACS712, and 8 pins are provided on the current sensor. Pin No. 7 of the current sensor is connected to pin No. 7 of the controller.

[0037] Preferably, external connection terminals connected to the power input terminal of the dryer and the power socket of the washing machine are provided on the top of the shell, so as to facilitate and quickly connect the corresponding equipment.

[0038] It should be noted that this application uses the Hall effect-based current sensor ACS712 to detect the current AD value of the washing machine and transmits it to the microcontroller APT-32F102B. When the current is detected to exceed the predetermined value and lasts for a certain period of time, the microcontroller sends a signal to trigger Q5 to disconnect the relay and reduce the power of the dryer to prevent instantaneous false triggering.

[0039] After the washing machine finishes heating, the ACS712 outputs a signal to the microcontroller APT-32F102B. When the measured current is lower than the limit value, the microcontroller sends a signal to trigger Q5, closing the relay and restoring the original high-power operation.

[0040] To sum up, the drying and washing power switching device based on single-chip microcomputer control in the embodiment of the present invention is based on the integrated control principle of the single-chip microcomputer. It can automatically adjust the working power of the dryer when the two machines are running at high power at the same time and exceed the limit value. When the power of the washing machine is reduced, the power of the dryer is switched to a high-power state, avoiding the phenomenon of overheating of the socket and wires during actual use, thereby improving the safety of the device.

[0041] The above specific implementation methods cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or transformation made to the implementation methods of the present utility model falls within the protection scope of the present utility model.

[0042] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. A drying and washing power switching device based on single chip microcomputer control, characterized by: The washing machine comprises a housing, a controller is provided in the housing, and a current sensor is connected to the controller. The current sensor is used to detect the current value of the washing machine and convert it into an AD value and transmit it to the controller; A trigger is connected to the controller, and the trigger is used to control the disconnection state or the power state of the relay, and the relay is used to reduce or restore the power of the dryer; The current sensor is also electrically connected to the dryer power input terminal and the washing machine power socket to accurately detect the current value.

2. The drying and washing power switching device based on single chip microcomputer control according to claim 1 is characterized in that: An external connection terminal connected to the power input end of the dryer and the power socket of the washing machine is provided on the top of the shell.

3. The drying and washing power switching device based on single chip microcomputer control according to claim 1 is characterized in that: A display screen connected to the controller is provided on the housing, and the display screen is used to display the current detection value and the power value of the dryer; a plurality of operation buttons are provided at the lower part of the housing.

4. The drying and washing power switching device based on single chip microcomputer control according to claim 3 is characterized in that: The model of the controller is APT-32F102B, and 24 pins are provided on the controller. The controller is connected to the trigger through pin 13, and the controller is connected to the current sensor through pin 7; the controller is connected to the operation button through pins 19, 20, 21 and 22.

5. The drying and washing power switching device based on single chip microcomputer control according to claim 4 is characterized in that: The trigger is an NPN transistor, and a relay is connected to the collector of the transistor. The model of the relay is SJ-S-112LM; the base of the transistor is connected to the 13th pin of the controller through a 1k resistor.

6. The drying and washing power switching device based on single chip microcomputer control according to claim 4 is characterized in that: The model of the current sensor is ACS712, and 8 pins are provided on the current sensor. Pin No. 7 of the current sensor is connected to pin No. 7 of the controller.

7. The drying and washing power switching device based on single chip microcomputer control according to claim 1 is characterized in that: A buffer connecting rod is provided in the middle section of the shell to improve the stability of the shell.

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