CN210624687U

CN210624687U - Bath heater

Info

Publication number: CN210624687U
Application number: CN201921389525.3U
Authority: CN
Inventors: 李明伟; 梁金儒; 解博超; 伍国源; 李清泉
Original assignee: Guangdong Nedfon Indoor Air System Technology Co Ltd
Current assignee: Guangdong Nedfon Indoor Air System Technology Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-26
Anticipated expiration: 2029-08-23

Abstract

The utility model relates to a bathroom heater. The bath heater of the utility model comprises a case, a controller, a ventilation motor, a blowing motor and a heating body which are arranged inside the case; the ventilation motor, the blowing motor and the heating body are connected to a signal output port of the controller; an air quality detection module is also arranged in the case; the air quality detection module is connected to a signal input port of the controller and transmits an air quality signal to the controller; the controller receives the air quality signal and outputs a control signal to the ventilation motor; and the ventilation motor receives the control signal to operate. Bathroom heater, can detect the quality of bathroom room air, when the air quality is relatively poor, the motor of taking a breath can move automatically and discharge the muddy air outside the bathroom to guarantee the cleanliness of bathroom room air.

Description

Bath heater

Technical Field

The utility model relates to the technical field of household appliances, in particular to a bathroom heater.

Background

The bathroom mainly provides space for people to have a bath, and when winter comes, people can feel cold and catch a cold easily when having a bath in the bathroom, so enterprise technical personnel develop the bathroom heater aiming at the problem and are used for improving the temperature in the bathroom. With the change of concept and the improvement of life grade of people, the bathroom heater has become a necessary household appliance for a household bathroom. Because the environment of the bathroom is relatively closed and the ventilation is poor, the air is difficult to discharge when peculiar smell gas or turbid air appears in the bathroom, and troubles are brought to the life of people, and therefore, whether the air quality in the bathroom meets the requirements or not is very important. At present, the bathroom heater installed in the bathroom only has a conventional function, cannot detect the air quality in the bathroom, cannot automatically start the ventilation function to discharge the turbid air, and is not convenient to use.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a bathroom heater, it has the air quality that can detect the bathroom to automatic advantage of taking a breath.

A bathroom heater comprises a case, a controller, a ventilation motor, a blowing motor and a heating body, wherein the controller, the ventilation motor, the blowing motor and the heating body are arranged in the case; the ventilation motor, the blowing motor and the heating body are connected to a signal output port of the controller; an air quality detection module is also arranged in the case; the air quality detection module is connected to a signal input port of the controller and transmits an air quality signal to the controller; the controller receives the air quality signal and outputs a control signal to the ventilation motor; and the ventilation motor receives the control signal to operate.

Bathroom heater, can detect the quality of bathroom room air, when the air quality is relatively poor, the motor of taking a breath can move automatically and discharge the muddy air outside the bathroom to guarantee the cleanliness of bathroom room air.

Further, the air quality detection module comprises an air quality sensor, a first adjustable resistor, a second adjustable resistor and a first comparator which are electrically connected with each other; a first pin of the air quality sensor is connected with the positive electrode of a direct-current power supply, a second pin of the air quality sensor is connected with one end of the first adjustable resistor, and a third pin of the air quality sensor is connected with the other end of the first adjustable resistor and grounded; the sliding end of the first adjustable resistor is connected with the reverse input end of the first comparator; the non-inverting input end of the first comparator is connected to the positive electrode of the direct-current power supply through a second adjustable resistor; the output end of the first comparator is connected to the signal input port of the controller.

Furthermore, an air humidity detection module is also arranged in the case; the air humidity detection module is connected to a signal input port of the controller and transmits an air humidity signal to the controller; the controller receives the air humidity signal and outputs a control signal to the ventilation motor.

Further, the air humidity detection module comprises a humidity sensor, a third adjustable resistor and a second comparator which are electrically connected with each other; a first pin of the humidity sensor is connected to the positive electrode of the direct-current power supply through a first resistor and is connected to the reverse input end of the second comparator, and a second pin of the humidity sensor is grounded; and the non-inverting input end of the second comparator is connected to the positive pole of the direct-current power supply through the third adjustable resistor.

Further, a motor driving circuit is arranged between the controller and the ventilation motor; the motor driving circuit comprises a driving chip and a relay which are connected with a signal output port of the controller; the relay includes coil and contact switch, the first pin of the coil of relay is connected to driver chip's signal output port, and the second pin is connected to the direct current power supply positive pole, the contact switch of relay connect in exchange commercial power live wire with between the power input terminal of scavenging motor.

Furthermore, the wind sweeping stepping motor is connected to a signal output port of the controller.

Further, the remote control device also comprises a remote controller; and an output pin of a receiving end of the remote controller is connected to a signal input port of the controller through a second resistor.

Furthermore, the device also comprises a key switch; the first pin of the key switch is connected to the anode of the direct-current power supply through a third resistor, and the second pin of the key switch is connected to the signal input port of the controller.

Further, the device also comprises a buzzer and an indicator light which are connected with the signal output port of the controller.

Furthermore, a power supply module is also arranged in the case; the power supply module comprises a rectifier bridge connected to alternating current, a transformer connected to the rear end of the rectifier bridge, a filter diode and a voltage stabilizing chip; the rectifier bridge rectifies the alternating current and outputs direct current; the transformer is used for reducing the direct current and outputting low-voltage direct current to the filter diode; the filter diode filters the low-voltage direct current and outputs a first direct current; the voltage stabilizing chip stabilizes the first direct current and outputs a second direct current.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic block diagram of a bathroom heater according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a super bath according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a controller and a driving circuit according to an embodiment of the present invention;

fig. 4 is a schematic circuit diagram of an air quality detection module according to an embodiment of the present invention;

fig. 5 is a sensitivity profile of an air quality sensor according to an embodiment of the present invention;

fig. 6 is a schematic circuit diagram of an air humidity detection module according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of a power module according to an embodiment of the present invention;

fig. 8 is a schematic circuit diagram of the switch, the buzzer and the indicator light according to the embodiment of the present invention;

fig. 9 is a circuit diagram of an illumination lamp according to an embodiment of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic block diagram of a bathroom heater according to an embodiment of the present invention; fig. 2 is a schematic structural view of the bathroom heater according to the embodiment of the present invention.

The utility model discloses a bathroom heater, which comprises a case 10, a controller 20 arranged in the case 10, a ventilation motor 30, a blowing motor 40 and a heating body 50; the ventilation motor 30, the blowing motor 40 and the heating body 50 are connected to a signal output port of the controller 20; an air quality detection module 60 and an air humidity detection module 70 are also arranged in the case 10; the air quality detection module 60 and the air humidity detection module 70 are connected to a signal input port of the controller 20.

The bathroom heater in the embodiment is a ceiling type bathroom heater which is arranged on a ceiling suspended ceiling, and the air outlet of the ceiling suspended ceiling is downward. In other embodiments, the bathroom heater can also be a wall-mounted bathroom heater, and a warmer placed on the ground or on a work bench.

The case 10 comprises a case body 11 and a panel 12 buckled at the bottom of the case body 11, wherein a wind sweeping air outlet leading to the indoor is formed in the panel 12, and a ventilation air outlet leading to the outdoor is formed in the side wall of the case body 11.

Please refer to fig. 3, which is a schematic diagram of a controller and a driving circuit according to an embodiment of the present invention.

The controller 20 is used as a control device of the bathroom heater, controls the operation of the whole components to realize the functions of illumination, ventilation, blowing, heating and the like, and the specific manufacturer and model are not limited. In this embodiment, the specific types of the controller 20 are: HT66F004, the working voltage of the single chip microcomputer is 2.2V-5.5V, therefore, a 5V direct current power supply is input to a power input port VCC of the chip to provide the working voltage for the main control chip, a filter capacitor is connected in parallel between the power input port VCC and GND, and the parameter value of the capacitor is 0.1 uF/50V. In the embodiment, the I/O ports PA0, PA1/PC1 and PC2 of the chip are used as signal input ports for receiving an air quality signal, an air humidity signal, a key signal and an infrared remote control signal; the I/O ports PA 2-PA 7, PB 0-PB 2 and PC0 are used as output control ports, and high and low level control signals are output to a driver, a lighting driving circuit, a buzzer and an indicator lamp.

In this embodiment, the ventilation motor 30, the blowing motor 40 and the heating body 50 are all existing devices in the prior art, and the manufacturers and specific models are not limited as long as the related functions can be realized.

The ventilation function, the blowing function, and the heating function of the above-described bathroom heater will be described below.

The realization of the ventilation function: a motor driving circuit is also arranged between the controller 20 and the ventilation motor 30; the motor driving circuit comprises a driving chip U2 and a first relay K2 which are connected with a signal output port of the controller 20; the first relay K2 comprises a coil and a contact switch, wherein a first pin of the coil of the first relay K2 is connected to a signal output port of the driving chip, namely, a first pin of the coil of the first relay K2 is connected to a 15 th pin of the driving chip; the second pin of the coil of the first relay K2 is connected to the positive pole of the +12 dc power supply, and the contact switch of the first relay K2 is connected between the ac live wire and the power input terminal of the ventilation motor 30. When the signal output port PA3 of the controller 20 outputs a low level to the 2 nd pin of the driver chip U2, the 15 th pin of the driver chip U2 outputs a low level to make the coil of the first relay K2 electrically connected, and the contact switch pulls in to make the power input terminal of the ventilation motor 30 connect with the ac mains live wire to operate electrically, thereby realizing the ventilation function.

The realization of the function of blowing: a second relay K3 is further connected to a signal output port of the driving chip U2, namely, the 16 th pin of the driving chip U2, and a first pin of a coil of the second relay K3 is connected to the signal output port of the driving chip, namely, a first pin of a coil of the second relay K3 is connected to the 16 th pin of the driving chip; a second pin of a coil of the second relay K3 is connected to the positive electrode of the +12 dc power supply, and a contact switch of the second relay K3 is connected between the ac live wire and the power input terminal of the blower motor 30. When the signal output port PA2 of the controller 20 outputs a low level to the 1 st pin of the driver chip U2, the 16 th pin of the driver chip U2 outputs a low level to make the coil of the second relay K3 electrically connected, and the contact switch pulls in to make the power input terminal of the blower motor 40 connect with the ac mains live wire to operate electrically, thereby realizing the blower function.

The realization of heating function: the heating body 50 is disposed at an air outlet of the case 10, and is connected to a signal output port of the controller 20 through a driving chip U2. Specifically, the signal output port of the driving chip U2, i.e., the 14 th pin of the driving chip U2, is further connected with a third relay K1, and the first pin of the coil of the third relay K1 is connected to the signal output port of the driving chip, i.e., the first pin of the coil of the third relay K1 is connected to the 14 th pin of the driving chip; the second pin of the coil of the third relay K1 is connected to the positive electrode of the +12 dc power supply, and the contact switch of the third relay K1 is connected between the ac live wire and the power input terminal of the heating body 50. When the signal output port PA4 of the controller 20 outputs a low level to the 3 rd pin of the driver chip U2, the 14 th pin of the driver chip U2 outputs a low level to make the coil of the third relay K1 electrically connected, and the contact switch is actuated to connect the power input terminal of the heater 50 to the ac power line to be electrically heated, thereby realizing the heating function.

The heating body 50 is a PTC heating body, which is composed of a PTC ceramic heating element and an aluminum tube. The PTC heater has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater.

Further, a temperature controller is also connected in series between the power input terminal of the heating body 50 and the contact switch of the third relay K1, so as to realize the over-temperature protection of the heating body 50. The working principle of the temperature controller is that the ambient temperature of the heating body input circuit is automatically sampled and immediately monitored through a temperature sensor, and when the ambient temperature is higher than a control set value, a control circuit is disconnected, and the heating body is closed to realize overheat protection. In this embodiment, the set temperature value may be 75 degrees celsius, or may be another temperature value. Specifically, when the temperature of the heating body 50 is detected to be higher than 75 °, the thermostat is turned off.

A fuse is also connected in series between the power input terminal of the heating body 50 and the contact switch of the third relay K1, when the temperature of the fuse exceeds 105 degrees, the fuse is fused to disconnect the power supply of the heating body 50, and the input of alternating current can be timely disconnected when abnormal conditions occur.

Furthermore, a signal output pin, namely pins 10-13, of the driving chip is connected with the wind sweeping stepping motor, so that a wind sweeping function is realized. Specifically, a power supply input terminal of the sweeping stepping motor is connected to a +12V direct-current power supply, and a signal output port PB2, a PA5, a PA6 and a PA7 of the controller 20 input sweeping control signals to U2 signal input pins 4-7 of the driving chip, so that signal output pins 10-13 of the driving chip U2 output operation control signals to the sweeping stepping motor to control the operation of the sweeping stepping motor.

Please refer to fig. 4, which is a schematic circuit diagram of an air quality detecting module according to an embodiment of the present invention.

In this embodiment, the air quality detection module 60 is configured to detect the air quality in the bathroom and transmit an air quality signal to the controller 20; the controller 20 receives the air quality signal, and when the air quality signal is detected to be reduced to a preset threshold value, the controller 20 outputs a control signal to the ventilation motor 30; the ventilation motor 30 receives the control signal to operate to discharge the turbid gas out of the bathroom so as to ensure the cleanliness of the air in the bathroom.

Specifically, the air quality detection module 60 includes an air quality sensor QS-01, a first adjustable resistor RW2, a second adjustable resistor, and a first comparator electrically connected to each other; a first pin of the air quality sensor QS-01 is connected with a +5V direct-current power supply, a second pin is connected with one end of the first adjustable resistor RW2, and a third pin is connected with the other end of the first adjustable resistor RW2 and grounded; the sliding end of the first adjustable resistor RW2 is connected to the inverting input end of the first comparator U3A, and the connection is grounded through a filter capacitor with a capacitance value of 0.1 Uf; the non-inverting input end of the first comparator U3A is connected to a +5V direct-current power supply through a second adjustable resistor RW 1; the output terminal of the first comparator U3A is connected to the signal input port PA1 of the controller 20, and the output terminal of the first comparator U3A is connected to the +5V dc power supply through a resistor with a resistance value of 10K ohms.

When the air quality is deteriorated, the resistance value of the detection resistor Rs of the air quality sensor QS-01 is reduced, the voltage of the reverse input pin 2 of the first comparator U3A is gradually increased, when the air quality is reduced to a certain value, when the voltage of the pin 2 of the inverting input of the first comparator U3A is higher than the reference voltage of the pin 3 of the inverting input of the first comparator U3A, the level of the pin 1 of the output of the first comparator U3A is changed from high level to low level, at this time, if the single chip microcomputer is in a standby state, the air exchange motor is awakened to operate and realize intelligent air exchange, dirty air in a bathroom room is pumped away through air exchange to form negative pressure, fresh air flows into the bathroom until the resistance value of a detection resistor Rs of an air quality sensor QS-01 is increased, the voltage of a reverse input pin 2 of the first comparator U3A is lower than the reference voltage of a same-phase input pin 3, and the air exchange motor is in a standby state after being turned off. When the bath heater performs intelligent ventilation, the receiving end of the remote controller immediately finishes ventilation when receiving a key signal of the control end, and the operation is performed according to a key command of the remote controller.

Referring to fig. 5, fig. 5 is a sensitivity curve diagram of an air quality sensor according to an embodiment of the present invention.

In this embodiment, the air quality sensor may be of QS-01 type, has high detection sensitivity to various air pollution sources, has a fast response time, is mainly used for detecting odor gases such as cigarette smell, ammonia gas, hydrogen sulfide and the like, alcohol, CO and organic gases with higher concentration, and has good sensitivity, and a sensitivity curve thereof refers to fig. 5. In other embodiments, the air quality sensor can be in other types.

Please refer to fig. 6, which is a schematic circuit diagram of an air humidity detecting module according to an embodiment of the present invention.

In this embodiment, the air humidity detecting module 70 is configured to detect the air humidity in the bathroom and transmit an air humidity signal to the controller 20; the controller 20 receives the air humidity signal, and when it is detected that the air humidity rises to a preset threshold, the controller 20 outputs a control signal to the ventilation motor 30; the ventilation motor 30 receives the control signal to operate, so that the air in the bathroom is kept dry.

Specifically, the air humidity detection module 70 includes a humidity sensor, a third adjustable resistor RW3 and a second comparator U4A, which are electrically connected to each other; a first pin of the humidity sensor is connected to a +5V direct-current power supply through a first resistor with a resistance value of 47K ohms and is connected to the reverse input end of the second comparator U4A, and a second pin of the humidity sensor is grounded; the non-inverting input end of the second comparator is connected to a +5V direct-current power supply through the third adjustable resistor RW 3; the signal output terminal of the second comparator U4A is connected to the signal input port PA0 of the controller 20, and the output terminal of the second comparator U4A is connected to the +5V dc power supply through a resistor with a resistance value of 10K ohms.

When the air humidity in the bathroom is high, if the air humidity is larger than 90% rh, the resistance value of the humidity sensor becomes low, when the voltage of the reverse input end of the second comparator U4A is lower than the reference voltage of the same-phase input, the output 1 pin of the second comparator U4A is changed from low level to high level, at the moment, if the single chip microcomputer is in a standby state, the single chip microcomputer is awakened to run a ventilation function, intelligent ventilation is achieved, dirty air in the bathroom is pumped away through ventilation to form negative pressure, fresh air flows into the bathroom until the resistance value of the humidity sensor is increased, the voltage of the reverse input 2 pin of the second comparator U4A is increased to be higher than the reference voltage of the same-phase input 3 pin, and the intelligent ventilation is in the standby state after the intelligent ventilation is turned. When the bath heater performs intelligent ventilation, the receiving end of the remote controller receives a key signal sent by the control end, the ventilation is immediately finished, and the operation is performed according to a key command of the remote controller.

The humidity sensor in this embodiment is an existing humidity sensor in the prior art, and the specific model is not limited.

In addition, the first comparator and the second comparator in this embodiment are both in the model of LM393, and in other embodiments, comparators in other models may also be selected.

Please refer to fig. 7, which is a schematic circuit diagram of a power module according to an embodiment of the present invention.

A power supply module is arranged in the case 10; the power input end of the power supply module is connected to 220V mains supply, and the alternating current is subjected to voltage reduction and rectification processing to output direct current, so that power is provided for the controller 20, a relay in a driving circuit, a wind sweeping stepping motor and other circuits.

Specifically, the power supply module comprises a rectifier bridge MB6F connected to alternating current, a high-frequency transformer connected to the rear end of the rectifier bridge MB6F, a filter diode SR2100 and a voltage stabilizing chip 78L 05; the rectifier bridge MB6F rectifies the alternating current and outputs high-voltage direct current; the high-frequency transformer is used for reducing the direct current and outputting low-voltage direct current to a filter diode SR 2100; the filtering diode SR2100 filters the low-voltage direct current and outputs a first direct current; the voltage stabilizing chip stabilizes the first direct current and outputs a second direct current. The first direct current is +12V direct current and is used for providing power for the stepping motor, the driving chip and the relay; the second direct current is +5V direct current, and is used for supplying power to the controller 20 and other components.

In other embodiments, each component of the power module can adopt other types, and the realization of the power function of the bath heater is not affected.

Please refer to fig. 8, which is a circuit connection diagram of the switch, the buzzer and the indicator light according to the embodiment of the present invention.

Specifically, the bathroom heater also comprises a remote control switch; the remote control switch is an infrared remote controller, an output pin of a receiving end of the remote control switch is connected to a signal input port PC1 of the controller 20 through a second resistor with a resistance value of 1K ohm, the controller 20 receives a signal of a transmitting end of the infrared remote controller and controls the motor or the heating body to operate, and the control is convenient.

The bathroom heater also comprises a key switch; the first pin of the key switch K1 is connected to a +5V direct current power supply through a third resistor with a resistance value of 10K ohms, the second pin is connected to a signal input port PC2 of the controller 20, and the controller 20 receives a signal of the key switch and controls the operation of a motor or a heating body. The key switch can be used as an emergency button, can control the bath heater under the conditions of failure, loss or no power of a remote controller and the like, and realizes the functions of heating, ventilation, shutdown and the like.

The bathroom heater also comprises a buzzer; the positive pole of the buzzer is connected to a +5V direct current power supply through a resistor with a resistance value of 47 ohms, the negative pole of the buzzer is connected to the collector of the first triode, the emitter of the first triode is grounded, and the base of the first triode is connected to a signal output port PC0 of the controller 20 through a resistor with a resistance value of 22K ohms.

The bath heater further includes an indicator light connected to the signal output port PB0 of the controller 20.

Please refer to fig. 9, which is a circuit connection diagram of the illumination lamp according to an embodiment of the present invention.

The bathroom heater also includes a lighting lamp connected to the signal output port PB1 of the controller 20 through a lighting driving circuit. Specifically, the lighting driving circuit comprises a second triode and a fourth relay K4, wherein the base electrode of the second triode is connected to the signal output port PB1 of the controller 20 through a resistor with the resistance value of 1K, the collector electrode of the second triode is connected to the first pin of the coil of the fourth relay K4, and the emitter electrode of the second triode is grounded; a second pin of a coil of the fourth relay K4 is connected to the positive pole of the +12V direct-current power supply; a diode is also connected in series between the first pin and the second pin of the coil in a reverse direction, and the model number of the diode is 4001; and a contact switch of the fourth relay K4 is connected in series between a power input terminal of the illuminating lamp and an AC mains live wire. When the signal output port PB1 of controller 20 outputs high level signal, the second triode switches on, and the coil of fourth relay K4 gets electric, and the electric shock switch switches on, and the light connection exchanges the commercial power and gets electric light this moment.

The bathroom heater of the utility model is provided with an air quality detection module which can detect the quality of air in a bathroom, when the air quality is poor, the ventilation motor can automatically operate to discharge the turbid air out of the bathroom so as to ensure the cleanliness of the air in the bathroom; still be provided with air humidity detection module, its humidity that can detect the bathroom room air, when the air humidity is great, the motor of taking a breath can automatic operation with humid air discharge outdoor to guarantee the aridity of bathroom room air, prevent breeding of bacterium.

Bathroom heater itself structural need not do the modification, as long as add air quality detection module and air humidity detection module on the control panel can, the function of taking a breath also need not manual control, the air in the bathroom flows with higher speed when the function of taking a breath starts, the air in the bathroom can keep dry clean, has improved the comfort level that people entered in the bathroom.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A bathroom heater comprises a case, a controller, a ventilation motor, a blowing motor and a heating body, wherein the controller, the ventilation motor, the blowing motor and the heating body are arranged in the case; the ventilation motor, the blowing motor and the heating body are connected to a signal output port of the controller; the method is characterized in that: an air quality detection module is also arranged in the case; the air quality detection module is connected to a signal input port of the controller and transmits an air quality signal to the controller; the controller receives the air quality signal and outputs a control signal to the ventilation motor; and the ventilation motor receives the control signal to operate.

2. The super bath of claim 1, wherein: the air quality detection module comprises an air quality sensor, a first adjustable resistor, a second adjustable resistor and a first comparator which are electrically connected with each other; a first pin of the air quality sensor is connected with the positive electrode of a direct-current power supply, a second pin of the air quality sensor is connected with one end of the first adjustable resistor, and a third pin of the air quality sensor is connected with the other end of the first adjustable resistor and grounded; the sliding end of the first adjustable resistor is connected with the reverse input end of the first comparator; the non-inverting input end of the first comparator is connected to the positive electrode of the direct-current power supply through a second adjustable resistor; the output end of the first comparator is connected to the signal input port of the controller.

3. The super bath of claim 1, wherein: an air humidity detection module is also arranged in the case; the air humidity detection module is connected to a signal input port of the controller and transmits an air humidity signal to the controller; the controller receives the air humidity signal and outputs a control signal to the ventilation motor.

4. The super bath of claim 3, wherein: the air humidity detection module comprises a humidity sensor, a third adjustable resistor and a second comparator which are electrically connected with each other; a first pin of the humidity sensor is connected to the positive electrode of the direct-current power supply through a first resistor and is connected to the reverse input end of the second comparator, and a second pin of the humidity sensor is grounded; the non-inverting input end of the second comparator is connected to the positive electrode of the direct-current power supply through the third adjustable resistor; the output end of the second comparator is connected to the signal input port of the controller.

5. The super bath of claim 1, wherein: a motor driving circuit is also arranged between the controller and the air exchange motor; the motor driving circuit comprises a driving chip and a relay which are connected with a signal output port of the controller; the relay includes coil and contact switch, the first pin of the coil of relay is connected to driver chip's signal output port, and the second pin is connected to the direct current power supply positive pole, the contact switch of relay connect in exchange commercial power live wire with between the power input terminal of scavenging motor.

6. The super bath of claim 1, wherein: the wind sweeping stepping motor is connected to a signal output port of the controller.

7. The super bath of claim 1, wherein: the remote control also comprises a remote controller; and an output pin of a receiving end of the remote controller is connected to a signal input port of the controller through a second resistor.

8. The super bath of claim 1, wherein: the device also comprises a key switch; the first pin of the key switch is connected to the anode of the direct-current power supply through a third resistor, and the second pin of the key switch is connected to the signal input port of the controller.

9. The super bath of claim 1, wherein: the controller also comprises a buzzer and an indicator light which are connected with the signal output port of the controller.

10. The super bath of claim 1, wherein: a power supply module is also arranged in the case; the power supply module comprises a rectifier bridge connected to alternating current, a transformer connected to the rear end of the rectifier bridge, a filter diode and a voltage stabilizing chip; the rectifier bridge rectifies the alternating current and outputs direct current; the transformer is used for reducing the direct current and outputting low-voltage direct current to the filter diode; the filter diode filters the low-voltage direct current and outputs a first direct current; the voltage stabilizing chip stabilizes the first direct current and outputs a second direct current.