CN103713657A - Water level control device and water level control method of micro mist sauna device - Google Patents

Abstract

A water level control device for a micro-mist sauna device, the humidifier is connected to the motor, the motor is powered by the DC power supply, and the circuit also has a current monitoring device for real-time monitoring of the current value of the motor; when the current monitoring device When the current motor current value obtained by monitoring is lower than the preset minimum current value, the microprocessor controls the water supply pipe valve to open and the drain pipe valve to close until the current current increase value ΔIm reaches the preset value Ic or the current current value reaches the preset value. When the current value Imax of the full water state is set, the microprocessor controls the water supply pipe valve to close; when the current motor current value monitored by the current monitoring device is higher than the preset minimum current value and lower than the preset maximum current value During the time, the microprocessor controls the motor to keep running, and the control water supply pipe valve and the drain pipe valve are all closed. The invention has the advantage that the monitoring and control of the water level can be realized conveniently.

Description

Water level control device and water level control method of a micro-mist sauna device

technical field

The invention relates to a micro-mist sauna device, in particular to a water level control device and a water level control method of the micro-mist sauna device.

Background technique

The humidifying device of the prior art, such as Chinese patent ZL201120109027.6, as shown in Figure 1, includes a water storage basin 1, an outer shell part 4, an inner shell part 5, a spray device 2 and a liquid extraction device 3, and the water storage basin 1 uses To accommodate the humidifying liquid; the outer shell part 4 is supported in the water storage basin 1; the spray device 2 is set in the inner shell part 5, and a power motor is set to synchronously drive a plurality of water mist generating discs and the suction nozzles of the liquid extraction device 3 to rotate, The suction nozzle is inserted into the humidifying liquid, and the humidifying liquid is moved towards the water mist generating plate when rotating rapidly; at least the water mist generating plate is equipped with fan blades; multiple water mist generating plates and fan blades generate centrifugal force to make the water flow through The humidifying liquid on it is atomized and thrown out towards the direction of the guiding curved surface member at high speed to generate humidification.

Like the above-mentioned humidifying device, the power motor synchronously drives multiple water mist generating discs and the suction nozzles of the liquid extraction device 3 to rotate, and when rotating rapidly, the humidifying liquid in the water storage basin is moved and transferred to the water mist generating disc; the water mist generates The disc and fan blades generate centrifugal force to atomize the humidifying liquid flowing through it, and are thrown out at high speed to generate humidification. With the atomization of the humidifying liquid, the water in the water storage basin gradually decreases, usually A water level sensor is required to monitor the water level to determine whether water needs to be added.

However, if the water level monitoring is realized through the water level sensor, the cost is very high, and spot inspection, maintenance and cleaning are inconvenient.

Contents of the invention

To solve the above problems, the present invention provides a water level control device and a water level control method for a micro-mist sauna device, which can conveniently monitor and control the water level.

In order to solve the problems of the prior art, the present invention provides a water level control device for a micro-mist sauna device, which includes: a humidifying part, a water storage tank, a water supply pipe and its valve, a drain pipe and its valve, a DC power supply, a micro Processor and motor, the humidifying part is connected to the motor, the water supply pipe and its valve, the drain pipe and its valve are connected to the water storage tank; the motor is powered by the DC power supply, and the circuit is also It has a current monitoring device for real-time monitoring of the motor current value; the microprocessor controls the operation of the motor, the opening and closing of the valve of the water supply pipe, and the opening and closing of the valve of the drain pipe;

When the current motor current value monitored by the current monitoring device is lower than the preset minimum current value, the microprocessor controls the water supply pipe valve to open and the drain pipe valve to close until the current current increase value ΔIm reaches the preset value Ic or the current When the current value reaches the preset current value Imax of the full water state, the microprocessor controls the water supply pipe valve to close; when the current motor current value monitored by the current monitoring device is higher than the preset minimum current value, and is equal to or lower than At the preset maximum current value, the microprocessor controls the motor to keep running, and controls the valves of the water supply pipe and the drain pipe to close; when the current value of the motor current monitored by the current monitoring device is higher than the preset maximum current value, The motor stops running.

In order to solve the problems of the prior art, the present invention also provides a water level control method for a micro-mist sauna device. The water level control device for a micro-mist sauna device includes: a humidification unit, a water storage tank, a water supply pipe and its valve and Drainage pipe and its valve, DC power supply, microprocessor, motor, the humidification unit is connected to the motor, the water supply pipe and its valve, drain pipe and its valve are connected to the water storage tank, and the real-time monitoring is provided by the DC power supply The current current value of the electric motor, when the above current current is higher than the preset minimum current value, enter step A; otherwise, enter step B;

Step A: The microprocessor controls the motor to keep running, and controls both the water supply pipe valve and the drain pipe valve to close; Step B: The microprocessor controls the water supply pipe valve to open, and controls the drain pipe valve to close until the current increase value ΔIm reaches the preset value When Ic, the microprocessor controls the water supply pipe valve to close.

In step B, after the microprocessor controls the valve of the water supply pipe to open, before controlling the valve of the drain pipe to close, the following steps are performed: Step B1: After the microprocessor controls the motor to start running for a period of time Ta, the microprocessor memorizes the above-mentioned current current Value Ime. Or, perform the following step B1': the microprocessor controls the motor to start running, and the motor speed is fed back to the microprocessor. When the microprocessor determines that the motor runs at a fixed speed for Tb, the microprocessor memorizes the above-mentioned current Current value Ime.

In step B, when the microprocessor controls the closing command of the drain pipe valve, the following steps are carried out: Step B2: If Ime is greater than the preset Img, the microprocessor determines that the drainage is abnormal, the water supply pipe valve is closed, and the motor is stopped. .

After the microprocessor controls the closing command of the drain pipe valve in step B, the following steps are carried out: Step B3: After the drain pipe valve is closed for a period of time Tc, the current motor current value increases from the current value Ime that has been memorized. When the preset Ic is still not reached, the microprocessor determines that the control water supply is abnormal, the valve of the water supply pipe is closed, and the motor is stopped.

After step B the microprocessor controls the water supply pipe valve to close, the following step C is repeated in a cycle: when the Td time period passes and the current current value drops to a predetermined Id from the time the water supply pipe valve is closed, the water supply pipe valve is controlled to open, When the current value returns to the current value when the valve of the water supply pipe is closed, the valve of the water supply pipe is controlled to close.

In order to solve the problems of the prior art, the present invention also provides a water level control method for a micro-mist sauna device. The water level control device for a micro-mist sauna device includes: a humidification unit, a water storage tank, a water supply pipe and its valve and The drain pipe and its valve, DC power supply, microprocessor, and motor, the humidification unit is connected to the motor, the water supply pipe and its valve, the drain pipe and its valve are connected to the water storage tank,

Real-time monitoring of the current current value of the motor provided by the DC power supply, when the above-mentioned current current value is higher than the preset minimum current value Imin, enter step A: otherwise enter step B and step C in turn, and repeat cycle step C;

Step A: The microprocessor controls the motor to keep running, and controls both the water supply pipe valve and the drain pipe valve to be closed;

Step B: the microprocessor controls the valve of the water supply pipe to open, and controls the valve of the drain pipe to close, until the current value rises to the preset full water current value Imax, the microprocessor controls the valve of the water supply pipe to close;

Step C: When the current current value drops to the preset minimum current value Imin, control the valve of the water supply pipe to open again, until the current value rises to the preset full water current value Imax again, the microprocessor controls the valve of the water supply pipe closure.

When the real-time monitoring current value of the motor powered by the DC power supply is higher than the preset maximum current value, the motor stops running.

The invention has the advantages of not only being able to conveniently realize the monitoring and control of the water level, but also reducing the cost and improving the convenience of spot inspection and maintenance. Through the above control method, it is ensured that the micro-mist sauna device will not overflow or thirsty (insufficient water), and improve the effect of the sauna and the comfort of use.

Description of drawings

Fig. 1 is a schematic diagram of a known micro-mist sauna device;

Fig. 2 is the general structural block diagram of water level control device of the present invention;

Fig. 3 is the general flowchart of water level control method of the present invention;

Fig. 4 is the automatic water supply control flowchart of the water level control method of the present invention;

Fig. 5A is a water level quantitative control flow chart of a water level control method of the present invention;

Fig. 5B is a water level quantitative control flow chart of another water level control method of the present invention;

Fig. 6 is a relationship diagram between time and current value of water level control in the present invention.

Detailed ways

Fig. 2 is a general structural block diagram of the water level control device of the present invention. For the convenience of description, the "current current value" mentioned below all means "the current value of the current flowing through the motor". As shown in Figure 2, a water level control device for a micro-mist sauna device includes: a humidification unit, a water storage tank, a water supply pipe and its valve 13, a drain pipe and its valve 14, a DC power supply 10, a microprocessor 11, a motor 12. The humidifying part is connected to the motor 12, the water supply pipe and its valve 13, the drain pipe and its valve 14 are connected to the water storage tank, the motor 12 is powered by the DC power supply 10, and the circuit There is also a current monitoring device 15 for real-time monitoring of the motor current value; the microprocessor 11 controls the operation of the motor 12 (starting, stopping and speed adjustment), and the opening and closing of the water supply pipe valve 13 and the drain pipe valve 14 on and off. In this embodiment, the DC power supply 10 can also be the power supply unit of the entire micro-mist sauna device, the microprocessor 11 is a processing unit that controls the operation of the motor 12 and the magnitude of the current, and the motor 12 is used to drive the humidifier. An execution unit that rotates rapidly to form fine water droplets.

The humidifying part is a slightly hollow conical shape that expands upwards. When the water level rises, the load increases and the current also increases. The microprocessor 11 of the present invention can monitor the current and the rotating speed of the motor 12 very conveniently and in real time. When there is no water in the water storage tank, the motor 12 drives the humidifying part to rotate in the air, and the load is relatively small. As shown in Figure 6, when water is added to the water storage tank, the motor 12 drives the humidifying part to rotate in the water, and the load increases. That is to say, when the water level in the water storage tank rises, the load increases accordingly. Since the voltage is kept constant and the rotating speed of the motor 12 is constant, the current will increase with the rise of the water level. When the microprocessor 11 monitors When the current rises to the specified range, the microprocessor 11 controls the valve 13 of the water supply pipe to close and stop the water supply; otherwise, when the water in the water storage tank forms fine water droplets and evaporates, the water level drops, and the current drops with the reduction of the water level. When the microprocessor 11 detects that the current drops to a specified range, the microprocessor 11 controls the valve 13 of the water supply pipe to open to start water supply.

Therefore, as mentioned above, when there is a lot of water, the current flowing through the motor 12 must become larger, and when there is no water, the current flowing through the motor 12 must be the smallest. Therefore, the present invention judges the height of the water level in the water storage tank and the amount of water by measuring the current value flowing through the motor 12 . Therefore determine in advance that the current value of the motor 12 flowing through the motor 12 under the water shortage (or near anhydrous) state in the water storage tank is Imin, the current value of the motor 12 flowing through the motor 12 under the full water state in the water storage tank is Imax, and the above-mentioned numerical value Store in the microprocessor to calibrate the state of the water level in the water storage tank, and then compare the above-mentioned Imin and Imax by monitoring the current value flowing through the motor 12 in real time to judge the water level in the water storage tank. When the current current value When it rises to the preset full water current value Imax, it is regarded as a full water state. When the current current value drops to the preset minimum value Imin, it is regarded as a thirsty water state. The two preset data are used as Indicators to determine if water injection is required. When the current value of the real-time monitoring is higher than the preset maximum current value Ix, stop the work of the entire micro-mist sauna device, including motor stop, cut off the water supply, and further open the drain pipe valve. In consideration of safety, when the preset current value reaches the full water current value Imax, the water level does not completely fill the water storage tank, leaving a certain safety margin. And when the preset current value reaches the highest current value Ix, it means that the water level has completely filled the water storage tank and is about to overflow. Therefore, the highest current value Ix is slightly larger than the full water current value Imax. Therefore, if the current current value is higher than the preset maximum current value Ix, it is judged that the water is about to overflow, so the work of the entire micro-mist sauna device must be stopped, and an audible alarm or other alarms can be issued according to the preset settings.

The present invention also provides another control mode, which does not pre-set the current value flowing through the motor 12 under the state of full water in advance, but presets a fixed current increase value ΔIm as Ic, when the initial current value flowing through the motor 12 is low When the current increase value ΔIm reaches Ic during the water storage process after the preset minimum value Imin, it is regarded as a full water state.

Fig. 3 is a general flowchart of the water level control method of the present invention. As shown in the figure, after the water level control device of the micro-mist sauna device is powered on, it first determines whether there is water in the water storage tank, and whether the existing water is enough to keep the micro-mist sauna device working continuously for a period of time.

This embodiment presets in advance the current value that can keep the micro-mist sauna device working continuously for a period of time. The controller controls the valve 13 of the water supply pipe to open, and controls the valve 14 of the drain pipe to close. When the current increase value ΔIm reaches the preset value Ic, the microprocessor 11 controls the valve 13 of the water supply pipe to close. This embodiment also enters the water level quantitative control program after the automatic water supply control program, that is, after the microprocessor controls the water supply pipe valve 13 to close, the current current value Imf is memorized. After the Td time period and the current current value drops to a predetermined Id, the water supply pipe valve 13 is controlled to open, and when the current current value returns to the current value Imf, the water supply pipe valve 13 is controlled to be closed.

When the monitored current is greater than or equal to the preset minimum value Imin, the microprocessor controls the motor to keep running, controls the water supply pipe valve and the drain pipe valve to close, and continues to monitor and compare the current current value with the minimum value Imin in real time. size relationship.

Fig. 4 is a flow chart of automatic water supply control of the water level control method of the present invention. As shown in the figure, after the automatic water supply control program starts in the present embodiment (step B1), the microprocessor 11 issues an instruction to control the opening of the water supply pipe valve 13, and the drive motor 12 starts running at the same time, and the speed is fed back to the microprocessor 11 , when the microprocessor 11 judges that the motor 12 has been running at a fixed speed through the Tb time period, the current Ime (initial value) is memorized, and the drain pipe valve 14 is controlled to be closed, and the water supply is continued. Before the full water monitoring, the micro The processor 11 will also perform abnormal judgments on drainage and water supply.

The above actions can also be carried out in the following step B1': after the automatic water supply control program starts, the microprocessor 11 sends an instruction to control the opening of the water supply pipe valve 13, and the drive motor 12 starts to run for a time period of Ta, and the microprocessor 11 memorizes the current Current value Ime (initial value). Since the motor has its own characteristic that it can enter the state of running at a fixed speed after running for a period of time from a standstill, the length of the Ta time period in this embodiment is set in advance according to the working conditions of the actual motor 12. After the motor 12 starts to run for a period of time Ta from a standstill, under preset normal conditions, the motor 12 should reach the ideal state of smoothly executing the instructions sent by the microprocessor 11 with a certain fixed speed.

After the water supply pipe valve 13 in the above-mentioned steps B1 or step B1' is opened, the drain pipe valve 14 is not closed, so the water storage tank can be flushed to clean the water storage tank to keep it clean. The reason why it is necessary to control the motor 12 to run at a fixed speed before memorizing the current current value Ime is to ensure that the valve 14 of the drain pipe and the valve of the supply pipe Whether 13 is all normal switch is monitored, thus prepares for the formal operation (ejection of tiny water droplets) of the micro-mist sauna device.

Step B2 (drainage abnormal judging program): if Ime is greater than the preset Img at this time, then the microprocessor 11 determines that the instruction for closing the drain pipe valve 14 sent before has not been correctly executed, that is, the drainage is abnormal, and the water supply pipe valve 13 Close, stop motor 12 running.

After the microprocessor 11 judges that there is no abnormality in the drainage, it will detect and judge whether it is full of water. With the current value Ime memorized as the initial value, when the motor 12 current increase value ΔIm reaches the preset value Ic (ΔIm=Ic), the microprocessor Device 11 determines that the water storage tank is full of water, and remembers the current value Imf of motor 12 when it is full of water, controls the water supply pipe valve 13 to close, and begins to enter the water level quantitative control program.

In the above full water detection and judgment procedure, step B3 (water supply abnormality judgment procedure) is also carried out simultaneously: after the drainpipe valve 14 is closed for a period of time Tc, such as after 30 seconds, the current value of the current motor 12 is changed from the stored current When the initial rise of the value Ime does not reach the preset Ic, the microprocessor 11 determines that the control water supply is abnormal, the valve 13 of the water supply pipe is closed, and the motor 12 is stopped.

This automatic water supply control program can prevent the water in the water storage tank from being too full and overflowing the water storage tank, and it can also prevent the sauna effect from being affected by too little water in the water storage tank. Insufficient water supply caused by blockage and other reasons. At the same time, record the characteristics of the motor current when it is full of water, as a basis for judging when water supply is required in the future.

Fig. 5A is a water level quantitative control flow chart of a water level control method of the present invention. After the automatic water supply control program ends, the present embodiment enters the water level quantitative control program, which specifically refers to: when the microprocessor 11 detects that the water is full, the above-mentioned motor current value Imf is memorized. It is used for judging thirsty water; it monitors the current of the motor in real time and judges the water supply. The stored Imf is used as the initial value. Carry out timing judgment at the same time, start from remembering Imf as initial value and whether through Td time period, as 5 minutes, if yes, then control water supply pipe valve 13 to open, water supply starts; , that is full of water, the control water supply pipe valve 13 is closed, and the water supply is stopped. After that, enter the cycle of water supply determination of the next water level quantitative control program, and repeat until the user actively cuts off the power to stop using.

In this step, by monitoring the change of the current value of the motor, it is determined when and whether water needs to be supplied, etc., so as to ensure that the water level in the water storage tank remains within the preset range, thereby finally ensuring the effect of the micro-mist sauna.

As shown in Figure 5B, the present invention also discloses another water level quantitative control program, which specifically refers to: when the microprocessor 11 detects that it is full of water, it jumps from the water supply control program to the water level quantitative control program. When the electric current of motor 12 reaches minimum value Imin, water supply pipe valve 13 is opened. After the electric current of monitoring motor 12 reaches full water current value Imax, control water supply pipe valve 13 to close, stop water supply, after this, enter the circulation of next water supply judgment, repeat ceaselessly. In this embodiment, when the water supply control program jumps to the preset water level quantitative control program, it can also ensure that the water level remains constant within a predetermined range, so as to ensure the effect of the micro-mist sauna. Same as the previous embodiment, when the current value of the real-time monitoring is higher than the preset maximum current value Ix, stop the work of the whole micro-mist sauna device (including the motor stops running, the water supply is cut off, and the drain pipe valve can be opened further).

Fig. 6 is a relationship diagram between time and current value of water level control in the present invention. As shown in the figure, due to the use of DC power supply, when the water supply pipe valve 13 is closed, the current of the motor 12 gradually decreases as the water volume decreases; when the water supply pipe valve 13 is opened, the water volume increases in a short time. The current of the motor 12 increases rapidly.

Claims (10)

1. A water level control device for a micro-mist sauna device, comprising: a humidifying part, a water storage tank, a water supply pipe and a valve thereof, a drain pipe and a valve thereof, a DC power supply, a microprocessor, a motor, and the humidifying part is connected to and arranged on On the motor, the water supply pipe and its valve, the drain pipe and its valve are connected to the water storage tank, and are characterized in that: The motor is powered by the DC power supply, and the circuit also has a current monitoring device for real-time monitoring of the motor current value; The microprocessor controls the operation of the motor, the opening and closing of the water supply pipe valve, and the opening and closing of the drain pipe valve; When the current motor current value monitored by the current monitoring device is lower than the preset minimum current value, the microprocessor controls the water supply pipe valve to open and the drain pipe valve to close until the current current increase value ΔIm reaches the preset value Ic or the current When the current value reaches the preset current value Imax of the full water state, the microprocessor controls the water supply pipe valve to close; when the current motor current value monitored by the current monitoring device is higher than the preset minimum current value, and is equal to or lower than When the preset maximum current value is reached, the microprocessor controls the motor to keep running, and controls the valves of the water supply pipe and the drain pipe to close; when the current value of the motor current monitored by the current monitoring device is higher than the preset maximum current value, it stops The whole micro-mist sauna unit works. 2. A water level control method of a micro-mist sauna device, the water level control device of the micro-mist sauna device comprises: a humidification unit, a water storage tank, a water supply pipe and its valve, a drain pipe and its valve, a DC power supply, and a microprocessor . Motor, the humidifying part is connected and arranged on the motor, and the water supply pipe and its valve, the drain pipe and its valve are connected and arranged with the water storage tank, and the characteristics are as follows: Real-time monitoring of the current current value of the motor powered by the DC power supply, when the above current current value is higher than the preset minimum current value, enter step A, otherwise enter step B; Step A: The microprocessor controls the motor to keep running, and controls the water supply pipe valve and the drain pipe valve to be closed; Step B: the microprocessor controls the valve of the water supply pipe to open, and controls the valve of the drain pipe to close, until the current increase value ΔIm reaches the preset value Ic, the microprocessor controls the valve of the water supply pipe to close. 3. The water level control method of the micro-mist sauna device according to claim 2, characterized in that: In step B, after the microprocessor controls the valve of the water supply pipe to open and before controlling the valve of the drain pipe to close, the following steps are performed: Step B1: After the microprocessor controls the motor to start running for a period of time Ta, the microprocessor memorizes the above-mentioned current current value Ime. 4. The water level control method of the micro-mist sauna device according to claim 2, characterized in that: In step B, after the microprocessor controls the valve of the water supply pipe to open and before controlling the valve of the drain pipe to close, the following steps are performed: Step B1': The microprocessor controls the motor to start running, and the motor speed is fed back to the microprocessor. When the microprocessor determines that the motor runs at a fixed speed for Tb, the microprocessor memorizes the above-mentioned current value Ime. 5. The water level control method of the micro-mist sauna device according to claim 3 or 4, characterized in that, in step B, when the microprocessor controls the closing command of the drainpipe valve to send out, the following steps are carried out: Step B2: If the currently memorized current value is greater than the preset current value Img, the microprocessor determines that the drainage is abnormal, the valve of the water supply pipe is closed, and the motor is stopped. 6. The water level control method of the micro-mist sauna device according to claim 3 or 4, characterized in that, in step B, after the microprocessor controls the closing command of the drain pipe valve, the following steps are carried out: Step B3: After the valve of the drain pipe is closed for a period of time Tc, the increase of the current motor current value from the memorized current value Ime has not reached the preset Ic, the microprocessor determines that the water supply control is abnormal, and the valve of the water supply pipe Closed to stop the motor from running. 7. The water level control method of the micro-mist sauna device according to claim 2, characterized in that: After step B the microprocessor controls the valve of the water supply pipe to close, repeat the cycle to carry out the following step C: When the Td time period passes and the current current value drops to a predetermined Id from when the water supply pipe valve is closed, control the water supply pipe valve to open, and when the current current value returns to the current value when the water supply pipe valve is closed, control the water supply pipe valve closure. 8. The water level control method of the micro-mist sauna device according to claim 2, characterized in that: When the real-time monitoring current value of the motor powered by the DC power supply is higher than the preset maximum current value Ix, the work of the entire micro-mist sauna device is stopped. 9. A water level control method for a micro-mist sauna device, the water level control device for a micro-mist sauna device comprising: a humidification unit, a water storage tank, a water supply pipe and its valve, a drain pipe and its valve, a DC power supply, and a microprocessor . Motor, the humidifying part is connected and arranged on the motor, and the water supply pipe and its valve, the drain pipe and its valve are connected and arranged with the water storage tank, and the characteristics are as follows: Real-time monitoring of the current current value of the motor provided by the DC power supply, when the above-mentioned current current value is higher than the preset minimum current value Imin, enter step A: otherwise enter step B and step C in turn, and repeat cycle step C; Step A: The microprocessor controls the motor to keep running, and controls both the water supply pipe valve and the drain pipe valve to be closed; Step B: the microprocessor controls the valve of the water supply pipe to open, and controls the valve of the drain pipe to close, until the current value rises to the preset full water current value Imax, the microprocessor controls the valve of the water supply pipe to close; Step C: When the current current value drops to the preset minimum current value Imin, control the valve of the water supply pipe to open again, until the current value rises to the preset full water current value Imax again, the microprocessor controls the valve of the water supply pipe closure. 10. The water level control method of the micro-mist sauna device according to claim 9, characterized in that: When the real-time monitoring current value of the motor powered by the DC power supply is higher than the preset maximum current value Ix, the work of the entire micro-mist sauna device is stopped.

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