Hair washing instrument control circuit

Abstract

The invention discloses a hair washing instrument control circuit, and relates to the field of daily electric appliances, and the hair washing instrument control circuit comprises a power supply module which is used for converting an input alternating current into a direct current as a power supply; the main control module is used for comprehensively controlling the circuit to work; the control circuit has the advantages that a control circuit in an old scheme is improved and optimized, 3KW heating tubes are divided into two groups of 2KW and 1KW, the 2KW and 1KW heating tubes are used for heating in a heating stage before a set temperature is reached, the 2KW heating tubes are used for heating when the set temperature is close, and the 2KW heating tubes are used for heating when the set temperature is reached, and the 2KW heating tubes are used for heating when the set temperature is reached. The 1KW heating tube is used for heat preservation, so that the situation that the effective value of voltage is rapidly changed by rapidly adjusting the heating tube is effectively avoided, stable operation of a power grid is ensured, and damage to equipment in a low-voltage power supply system due to voltage fluctuation and flicker is avoided.

Description

Technical Field

[0001] The invention relates to the field of daily electrical appliances, in particular to a hair washing device control circuit. Background Art

[0002] The shampooing device control circuit is used to control the shampooing and head treatment functions of the shampooing device. The device has its own water tank, which is pumped to the table by a water pump, and heated by a heating tube to reach the required temperature set by the user. The shampooing device control circuit includes LC filter circuit, leakage protection circuit, high and low temperature alarm detection circuit, 24V and 5V DC voltage regulator circuit, etc.

[0003] When the shampooer control circuit controls the operation of the entire product, the power of the heating tube will reach about 3KW. In the process of adjusting the temperature (when turning the heating tube on and off or adjusting the power of the heating tube), voltage fluctuations will occur in the home or commercial power supply system, which will have a relatively large impact on the public power grid and may cause performance degradation or damage to electrical equipment, affecting the user's perception of power quality. It will also cause changes in the visible light displayed by lighting equipment, causing harm to people with sensitive vision, and needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a hair washing device control circuit to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A hair washing device control circuit, comprising:

[0007] A power supply module is used to convert input AC power into DC power as a power supply;

[0008] Main control module, used for comprehensive control circuit operation;

[0009] The heating tube control module is used to accept the control of the main control module, control the power-on by controlling the thyristor, and control the opening and closing of the two groups of 2KW+1KW heating tubes;

[0010] The temperature detection module is used to feed back the water temperature to the main control module, and the main control module controls the working state of the two groups of 2KW+1KW heating tubes in the heating tube control module according to the water temperature;

[0011] The zero-crossing detection module is used to detect the zero point of the AC point of the power grid and feed it back to the main control module, so that when the main control module controls the opening or closing of the thyristor in the heating tube control module, voltage fluctuations in the power grid can be avoided;

[0012] The power supply module is connected to the main control module, the heating tube control module, the temperature detection module, and the zero-crossing detection module, and the main control module is connected to the heating tube control module, the temperature detection module, and the zero-crossing detection module.

[0013] As a further solution of the present invention: the main control module includes a chip IC1, the chip IC1 model is SC92F8413M&SOP28, the 16th, 17th, 18th and 25th pins of the chip IC1 are connected to the heating tube control module, the 10th, 11th and 12th pins of the chip IC1 are connected to the temperature detection module, and the 15th pin of the chip IC1 is connected to the zero-crossing detection module.

[0014] As a further solution of the present invention: the heating tube control module includes an optical coupler U5, a thyristor TR1, and a chip IC2. The model of the chip IC2 is ULN2001. The first end of the optical coupler U5 is connected to a 5V voltage. The second end of the optical coupler U5 is connected to the main control module through a resistor R53. The fourth end of the optical coupler U5 is connected to the first end of the thyristor interface TR-1 through a resistor R42. The sixth end of the optical coupler U5 is connected to the third end of the thyristor interface TR-1. The thyristor interface TR-1 is connected to the thyristor interface TR-2. The thyristor interface The first end of TR-2 is connected to the first end of the thyristor TR1, the third end of the thyristor interface TR-2 is connected to the second end of the thyristor TR1, one end of the resistor R29, and the voltage signal IN, the third end of the thyristor TR1 is connected to one end of the capacitor C13 and the voltage signal OUT, and the other end of the capacitor C13 is connected to one end of the resistor R29; pins 6, 7, and 8 of the chip IC2 are connected to the main control module, pins 1, 2, and 3 of the chip IC2 are connected to the negative end of a relay, and the positive ends of the three relays are all connected to a 24V voltage.

[0015] As a further solution of the present invention: the temperature detection module includes a sensor interface NTC1, a sensor interface NTC2, and a sensor interface NTC3. The second end of the sensor interface NTC1 is connected to a 5V voltage, the first end of the sensor interface NTC1 is connected to the main control module via a resistor R29, the second end of the sensor interface NTC2 is connected to a 5V voltage, the first end of the sensor interface NTC2 is connected to the main control module via a resistor R30, the second end of the sensor interface NTC3 is connected to a 5V voltage, and the first end of the sensor interface NTC3 is connected to the main control module via a resistor R31.

[0016] As a further solution of the present invention: a zero-crossing detection module optocoupler U2, a first end of the optocoupler U2 is connected to the cathode of the diode D5, the anode of the diode D5 is connected to the live wire ACL of the power grid through resistors R17, R16, and R15 in sequence, a second end of the optocoupler U2 is connected to the neutral wire ACN of the power grid, a fourth end of the optocoupler U2 is grounded, and a third end of the optocoupler U2 is connected to the main control module.

[0017] As a further solution of the present invention: the hair washing device control circuit also includes a leakage detection module, which is used to detect whether there is leakage in the whole machine and feed back to the main control module;

[0018] The leakage detection module includes a leakage detection interface LD, a first end of the leakage detection interface LD is grounded, a second end of the leakage detection interface LD is connected to one end of a resistor R25, one end of a resistor R26, and one end of a capacitor C6, the other end of the resistor R26 is grounded, the other end of the capacitor C6 is grounded, and the other end of the resistor R25 is connected to the main control module.

[0019] As a further solution of the present invention: the hair washing device control circuit also includes a color light control module, which is used to accept the control of the main control module and control the atmosphere color lights of the whole machine;

[0020] The colored light control module includes a colored light interface LED, the second end of the colored light interface LED is connected to the 24V voltage and the cathode of the diode D7, the first end of the colored light interface LED is connected to the anode of the diode D7 and the D pole of the MOS tube Q3, the S pole of the MOS tube Q3 is grounded, and the G pole of the MOS tube Q3 is connected to the main control module through the resistor R24.

[0021] As a further solution of the present invention: the hair washing device control circuit also includes a water pump driving module, which is used to accept the control of the main control module and control the power of the DC brushless water pump;

[0022] The water pump drive module includes a water pump drive interface, a first end of the water pump drive interface is connected to a 24V voltage, a second end of the water pump drive interface is grounded, and a third end of the water pump drive interface is connected to a main control module via a resistor.

[0023] As a further solution of the present invention: the shampooing device control circuit also includes a water flow and water level detection module, which is used to detect the shampooing water flow and water circulation water level, and feed back to the main control module;

[0024] The water flow and water level detection module includes a water flow detection interface CN2 and a water level detection interface SW1. The first end of the water flow detection interface CN2 is connected to a 5V voltage, the second end of the water flow detection interface CN2 is connected to one end of a resistor R34 and one end of a resistor R35, the other end of the resistor R34 outputs a water flow signal WATER, the other end of the resistor R35 is connected to a 5V voltage, the third end of the water flow detection interface CN2 is grounded, the first end of the water level detection interface SW1 is grounded, and the second end of the water level detection interface SW1 is connected to the main control module.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention improves and optimizes the control circuit of the old scheme, divides the 3KW heating tube into two groups of 2KW+1KW, and in the heating stage, before reaching the set temperature, uses the 2KW+1KW heating tube to heat up, and when approaching the set temperature, uses the 2KW heating tube to heat up, and after reaching the set temperature, uses the 1KW heating tube to keep warm, effectively avoiding the rapid change of the effective value of the voltage caused by the rapid adjustment of the heating tube, ensuring the stable operation of the power grid, and avoiding damage to the equipment in the low-voltage power supply system due to voltage fluctuations and flickering. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a circuit diagram of a shampooing device control circuit.

[0027] Figure 2 This is the circuit diagram of the main control module.

[0028] Figure 3 This is the circuit diagram of the heating pipe control module.

[0029] Figure 4 This is the circuit diagram of the temperature detection module.

[0030] Figure 5 This is the circuit diagram of the zero-crossing detection module.

[0031] Figure 6 This is the circuit diagram of the leakage detection module.

[0032] Figure 7 This is the circuit diagram of the colored light control module.

[0033] Figure 8 This is the circuit diagram of the water pump drive module.

[0034] Fig. 9 This is the circuit diagram of the water flow and water level detection module.

[0035] Fig.10 This is the circuit diagram of the LC filter unit.

[0036] Fig.11 The circuit diagram of the switching power supply unit.

[0037] Fig.12 This is the circuit diagram of the DC voltage stabilization unit. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] See also Figure 1 , a shampooing device control circuit, comprising:

[0040] A power supply module is used to convert input AC power into DC power as a power supply;

[0041] Main control module, used for comprehensive control circuit operation;

[0042] The heating tube control module is used to accept the control of the main control module, control the power-on by controlling the thyristor, and control the opening and closing of the two groups of 2KW+1KW heating tubes;

[0043] The temperature detection module is used to feed back the water temperature to the main control module, and the main control module controls the working state of the two groups of 2KW+1KW heating tubes in the heating tube control module according to the water temperature;

[0044] The zero-crossing detection module is used to detect the zero point of the AC point of the power grid and feed it back to the main control module, so that when the main control module controls the opening or closing of the thyristor in the heating tube control module, voltage fluctuations in the power grid can be avoided;

[0045] The power supply module is connected to the main control module, the heating tube control module, the temperature detection module, and the zero-crossing detection module, and the main control module is connected to the heating tube control module, the temperature detection module, and the zero-crossing detection module.

[0046] In a specific embodiment: the power supply module includes:

[0047] Please refer to Fig.10 , LC filter unit is used to filter out the noise of AC input and output, reduce the transmission interference to DC power supply, and reduce the interference of load to the power grid;

[0048] Please refer to Fig.11 , a switching power supply unit, used to convert the AC 85V-265V voltage into a stable DC voltage of 24V / 50W;

[0049] Please refer to Fig.12 , DC voltage stabilizing unit, used to convert 24V DC voltage into 5V voltage.

[0050] The power supply module is a common technology, and the conversion of AC power into 24V and 5V DC will not be described in detail here.

[0051] In this example: See Figure 2 The main control module includes a chip IC1, the chip IC1 model is SC92F8413M&SOP28, the 16th, 17th, 18th, and 25th pins of the chip IC1 are connected to the heating tube control module, the 10th, 11th, and 12th pins of the chip IC1 are connected to the temperature detection module, and the 15th pin of the chip IC1 is connected to the zero-crossing detection module.

[0052] Chip IC1 integrates the control circuit work.

[0053] In this example: See Figure 3 The heating tube control module includes an optical coupler U5, a thyristor TR1, and a chip IC2. The model of the chip IC2 is ULN2001. The first end of the optical coupler U5 is connected to a 5V voltage. The second end of the optical coupler U5 is connected to the main control module through a resistor R53. The fourth end of the optical coupler U5 is connected to the first end of the thyristor interface TR-1 through a resistor R42. The sixth end of the optical coupler U5 is connected to the third end of the thyristor interface TR-1. The thyristor interface TR-1 is connected to the thyristor interface TR-2. The first end of the thyristor interface TR-2 is connected to the first end of the thyristor interface TR-1. One end is connected to the first end of the thyristor TR1, the third end of the thyristor interface TR-2 is connected to the second end of the thyristor TR1, one end of the resistor R29, and the voltage signal IN, the third end of the thyristor TR1 is connected to one end of the capacitor C13, the voltage signal OUT, and the other end of the capacitor C13 is connected to one end of the resistor R29; pins 6, 7, and 8 of the chip IC2 are connected to the main control module, pins 1, 2, and 3 of the chip IC2 are connected to the negative end of a relay, and the positive ends of the three relays are all connected to a 24V voltage.

[0054] The zero-crossing detection module detects the zero point of the AC point of the power grid and feeds back to the main control module. The main control module controls the third end of the optocoupler U5 to become a low level, so that the optocoupler U5 is turned on. After passing through the thyristor interfaces TR-1 and TR-2, the first end of the thyristor TR1 becomes a high level, the thyristor TR1 is turned on, the voltage signals IN and OUT are turned on, and the power-on is completed. The power-on is at the zero-crossing point, which avoids voltage fluctuations in the power grid during the power-on process.

[0055] The temperature detection module detects the water temperature and feeds the water temperature back to the main control module. The main control module controls the working status of the two groups of 2KW+1KW heating tubes in the heating tube control module according to the water temperature. The main control module controls the level of the 1, 2, and 3 pins of the chip IC2 by controlling the level of the 6, 7, and 8 pins of the chip IC2, so as to control the operation of the three relays and the heating tube. The 3KW heating tube is divided into two groups of 2KW+1KW. In the heating stage, before the set temperature is reached, the 2KW+1KW heating tube is used for heating. When it is close to the set temperature, the 2KW heating tube is used for heating. After reaching the set temperature, the 1KW heating tube is used for insulation, which effectively avoids the rapid change of the effective value of the voltage caused by the rapid adjustment of the heating tube, and ensures the stable operation of the power grid.

[0056] In this example: See Figure 4 The temperature detection module includes a sensor interface NTC1, a sensor interface NTC2, and a sensor interface NTC3. The second end of the sensor interface NTC1 is connected to a 5V voltage, the first end of the sensor interface NTC1 is connected to the main control module through a resistor R29, the second end of the sensor interface NTC2 is connected to a 5V voltage, the first end of the sensor interface NTC2 is connected to the main control module through a resistor R30, the second end of the sensor interface NTC3 is connected to a 5V voltage, and the first end of the sensor interface NTC3 is connected to the main control module through a resistor R31.

[0057] Sensor interface NTC1, sensor interface NTC2, and sensor interface NTC3 are connected to external temperature sensors to detect water temperature information and feed it back to the main control module. The main control module controls the control state of the heating tube according to the water temperature.

[0058] In this example: See Figure 5 , the zero-crossing detection module optocoupler U2, the first end of the optocoupler U2 is connected to the cathode of the diode D5, the anode of the diode D5 is connected to the live wire ACL of the power grid through resistors R17, R16, and R15 in sequence, the second end of the optocoupler U2 is connected to the neutral wire ACN of the power grid, the fourth end of the optocoupler U2 is grounded, and the third end of the optocoupler U2 is connected to the main control module.

[0059] When the positive voltage changes to negative voltage and crosses the zero point, the light-emitting diode inside the optocoupler U2 goes out, and the voltage signal ZERO fed back to the main control module changes, indicating the zero point.

[0060] In this example: See Figure 6 , the shampooing device control circuit also includes a leakage detection module, which is used to detect whether there is leakage in the whole machine and feed back to the main control module;

[0061] The leakage detection module includes a leakage detection interface LD, a first end of the leakage detection interface LD is grounded, a second end of the leakage detection interface LD is connected to one end of a resistor R25, one end of a resistor R26, and one end of a capacitor C6, the other end of the resistor R26 is grounded, the other end of the capacitor C6 is grounded, and the other end of the resistor R25 is connected to the main control module.

[0062] The leakage detection interface LD is connected to an external leakage detection device. When leakage is detected, the signal is fed back to the main control module.

[0063] In this example: See Figure 7 The hair washing instrument control circuit also includes a color light control module, which is used to accept the control of the main control module and control the atmosphere color lights of the whole machine;

[0064] The colored light control module includes a colored light interface LED, the second end of the colored light interface LED is connected to the 24V voltage and the cathode of the diode D7, the first end of the colored light interface LED is connected to the anode of the diode D7 and the D pole of the MOS tube Q3, the S pole of the MOS tube Q3 is grounded, and the G pole of the MOS tube Q3 is connected to the main control module through the resistor R24.

[0065] The colored light interface LED is connected to an external colored light. When it receives the control signal P-LED from the main control module, the MOS tube Q3 is turned on, the colored light interface LED becomes a loop, and the colored light is powered and emits light.

[0066] In this example: See Figure 8 , the shampooing device control circuit also includes a water pump driving module, which is used to accept the control of the main control module and control the power of the DC brushless water pump;

[0067] The water pump drive module includes a water pump drive interface, a first end of the water pump drive interface is connected to a 24V voltage, a second end of the water pump drive interface is grounded, and a third end of the water pump drive interface is connected to a main control module via a resistor.

[0068] At least one water pump drive interface is provided. Figure 7 There are two modules which receive different driving signals PWM1 and PWM2 from the main control module to control the driving.

[0069] In this example: See Fig. 9 , the shampooing device control circuit also includes a water flow and water level detection module, which is used to detect the shampooing water flow and water circulation water level, and feed back to the main control module;

[0070] The water flow and water level detection module includes a water flow detection interface CN2 and a water level detection interface SW1. The first end of the water flow detection interface CN2 is connected to a 5V voltage, the second end of the water flow detection interface CN2 is connected to one end of a resistor R34 and one end of a resistor R35, the other end of the resistor R34 outputs a water flow signal WATER, the other end of the resistor R35 is connected to a 5V voltage, the third end of the water flow detection interface CN2 is grounded, the first end of the water level detection interface SW1 is grounded, and the second end of the water level detection interface SW1 is connected to the main control module.

[0071] The water flow detection interface CN2 is connected to an external water flow detection device to detect the water flow. The detection signal FLOW passes through the resistor R34 and then outputs the signal WATER to feedback the water flow information. The water level detection interface SW1 is connected to an external water level detection device to detect the water level and then output the signal SW1 to the main control module.

[0072] The present invention improves and optimizes the control circuit of the old scheme, divides the 3KW heating tube into two groups of 2KW+1KW, and in the heating stage, before reaching the set temperature, uses the 2KW+1KW heating tubes to heat up, when approaching the set temperature, uses the 2KW heating tubes to heat up, and after reaching the set temperature, uses the 1KW heating tubes to keep warm, effectively avoiding the rapid change of the effective value of the voltage caused by the rapid adjustment of the heating tubes, ensuring the stable operation of the power grid, and avoiding damage to the equipment in the low-voltage power supply system due to voltage fluctuations and flickers.

[0073] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shampooing device control circuit, characterized in that: The shampooing device control circuit comprises: A power supply module is used to convert input AC power into DC power as a power supply; Main control module, used for comprehensive control circuit operation; The heating tube control module is used to accept the control of the main control module, control the power-on by controlling the thyristor, and control the opening and closing of the two groups of 2KW+1KW heating tubes; The temperature detection module is used to feed back the water temperature to the main control module, and the main control module controls the working state of the two groups of 2KW+1KW heating tubes in the heating tube control module according to the water temperature; The zero-crossing detection module is used to detect the zero point of the AC point of the power grid and feed it back to the main control module, so that when the main control module controls the opening or closing of the thyristor in the heating tube control module, voltage fluctuations in the power grid can be avoided; The power supply module is connected to the main control module, the heating tube control module, the temperature detection module, and the zero-crossing detection module, and the main control module is connected to the heating tube control module, the temperature detection module, and the zero-crossing detection module.

2. The hair washing device control circuit according to claim 1, characterized in that: The main control module includes a chip IC1, the chip IC1 model is SC92F8413M&SOP28, the 16th, 17th, 18th, and 25th pins of the chip IC1 are connected to the heating tube control module, the 10th, 11th, and 12th pins of the chip IC1 are connected to the temperature detection module, and the 15th pin of the chip IC1 is connected to the zero-crossing detection module.

3. The hair washing device control circuit according to claim 1, characterized in that: The heating tube control module includes an optocoupler U5, a thyristor TR1, and a chip IC2. The model of the chip IC2 is ULN2001. The first end of the optocoupler U5 is connected to a 5V voltage. The second end of the optocoupler U5 is connected to the main control module through a resistor R53. The fourth end of the optocoupler U5 is connected to the first end of the thyristor interface TR-1 through a resistor R42. The sixth end of the optocoupler U5 is connected to the third end of the thyristor interface TR-1. The thyristor interface TR-1 is connected to the thyristor interface TR-2. The first end of the thyristor interface TR-2 is connected to the first end of the thyristor interface TR-1. The first end of the thyristor interface TR-2 is connected to the first end of the thyristor TR1, the third end of the thyristor interface TR-2 is connected to the second end of the thyristor TR1, one end of the resistor R29, and the voltage signal IN, the third end of the thyristor TR1 is connected to one end of the capacitor C13, the voltage signal OUT, and the other end of the capacitor C13 is connected to one end of the resistor R29; pins 6, 7, and 8 of the chip IC2 are connected to the main control module, pins 1, 2, and 3 of the chip IC2 are connected to the negative end of a relay, and the positive ends of the three relays are all connected to a 24V voltage.

4. The hair washing device control circuit according to claim 1, characterized in that: The temperature detection module includes sensor interface NTC1, sensor interface NTC2, and sensor interface NTC3. The second end of sensor interface NTC1 is connected to a 5V voltage, the first end of sensor interface NTC1 is connected to the main control module through resistor R29, the second end of sensor interface NTC2 is connected to a 5V voltage, the first end of sensor interface NTC2 is connected to the main control module through resistor R30, the second end of sensor interface NTC3 is connected to a 5V voltage, and the first end of sensor interface NTC3 is connected to the main control module through resistor R31.

5. The hair washing device control circuit according to claim 1, characterized in that: The zero-crossing detection module optocoupler U2, the first end of the optocoupler U2 is connected to the cathode of the diode D5, the anode of the diode D5 is connected to the live wire ACL of the power grid through resistors R17, R16, and R15 in sequence, the second end of the optocoupler U2 is connected to the neutral wire ACN of the power grid, the fourth end of the optocoupler U2 is grounded, and the third end of the optocoupler U2 is connected to the main control module.

6. The hair washing device control circuit according to any one of claims 1 to 5, characterized in that: The hair washing machine control circuit also includes a leakage detection module for detecting whether there is leakage in the whole machine and feeding back to the main control module; The leakage detection module includes a leakage detection interface LD, a first end of the leakage detection interface LD is grounded, a second end of the leakage detection interface LD is connected to one end of a resistor R25, one end of a resistor R26, and one end of a capacitor C6, the other end of the resistor R26 is grounded, the other end of the capacitor C6 is grounded, and the other end of the resistor R25 is connected to the main control module.

7. The hair washing device control circuit according to any one of claims 1 to 5, characterized in that: The hair washing device control circuit also includes a color light control module, which is used to accept the control of the main control module and control the atmosphere color lights of the whole machine; The colored light control module includes a colored light interface LED, the second end of the colored light interface LED is connected to the 24V voltage and the cathode of the diode D7, the first end of the colored light interface LED is connected to the anode of the diode D7 and the D pole of the MOS tube Q3, the S pole of the MOS tube Q3 is grounded, and the G pole of the MOS tube Q3 is connected to the main control module through the resistor R24.

8. The hair washing device control circuit according to any one of claims 1 to 5, characterized in that: The hair washing device control circuit also includes a water pump driving module, which is used to accept the control of the main control module and control the power of the DC brushless water pump; The water pump drive module includes a water pump drive interface, a first end of the water pump drive interface is connected to a 24V voltage, a second end of the water pump drive interface is grounded, and a third end of the water pump drive interface is connected to a main control module via a resistor.

9. The hair washing device control circuit according to any one of claims 1 to 5, characterized in that: The shampooing device control circuit also includes a water flow and water level detection module, which is used to detect the shampooing water flow and water circulation water level, and feed back to the main control module; The water flow and water level detection module includes a water flow detection interface CN2 and a water level detection interface SW1. The first end of the water flow detection interface CN2 is connected to a 5V voltage, the second end of the water flow detection interface CN2 is connected to one end of a resistor R34 and one end of a resistor R35, the other end of the resistor R34 outputs a water flow signal WATER, the other end of the resistor R35 is connected to a 5V voltage, the third end of the water flow detection interface CN2 is grounded, the first end of the water level detection interface SW1 is grounded, and the second end of the water level detection interface SW1 is connected to the main control module.

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