Dehumidifier circuit
By combining the liquid level sensor and the main control module, the water level in the water tank is monitored in real time and an alarm is displayed on the touch screen, which solves the problem that users need to manually check if the water tank is full, ensuring the normal operation of the dehumidifier and timely reminders to users.
Patent Information
- Application Number
- CN202423135999.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing dehumidifiers require users to manually check the water tank's fullness, which can easily lead to overflow, damaging the equipment and affecting normal operation.
A liquid level sensor is used to monitor the water level in the water tank, and the main control module controls the touch screen to display a water level alarm, so as to promptly remind the user that the water tank is full.
It enables real-time monitoring and alarm of water tank level, preventing water tank overflow or equipment damage, and enhancing real-time user feedback and equipment reliability.
Smart Images
Figure CN223610255U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of dehumidifiers, in particular to a dehumidifier circuit. BACKGROUND
[0002] As a common household appliance, dehumidifiers are widely used in homes, offices and industrial environments, mainly for reducing air humidity and preventing items from being damp and moldy. With the improvement of people's living quality and the progress of technology, the functions of dehumidifiers are constantly enriched and improved, not only improving the user experience, but also improving the reliability and safety of the equipment. There are various types of dehumidifiers on the market, covering products of various capacities and functions, meeting the needs of different scenarios.
[0003] The existing dehumidifier usually needs the user to manually detect the water fullness of the water tank, and the user needs to regularly check the water fullness of the water tank, and the water tank is easy to overflow and damage the components of the dehumidifier, affecting the normal operation of the dehumidifier. CONTENT OF THE UTILITY MODEL
[0004] In order to timely remind the user that the water tank is full, and avoid affecting the normal operation of the dehumidifier, the present application provides a dehumidifier circuit.
[0005] The dehumidifier circuit provided by the present application adopts the following technical scheme:
[0006] A dehumidifier circuit, comprising a power supply module, a main control module, a display panel communication module and a water fullness detection module, comprising a power supply module, a main control module, a display panel communication module and a water fullness detection module, the display panel communication module is connected with a touch display screen, the input end of the display panel communication module is connected with the output pin of the main control module, the input end of the water fullness detection module is connected with a liquid level sensor, the liquid level sensor is used to detect the water level in the water tank, the output end of the water fullness detection module is connected with the input pin of the main control module, and the power supply module is used to power the main control module, the display panel communication module and the water fullness detection module.
[0007] By adopting the above technical scheme, the liquid level sensor monitors the water level in the water tank and transmits signals to the main control module, and the main control module can receive the change information of the water level in real time, and when the water level in the water tank exceeds the limit value, the main control module controls the touch display screen to display the water level alarm mark, thereby timely reminding the user that the water tank is full, and avoiding the overflow of the water tank or the damage of the equipment.
[0008] Preferably, the main control module comprises a main control chip, the input pin of the main control chip is connected with the first pin of the third wiring terminal, and the two output pins of the main control chip are respectively connected with the fourth pin and the fifth pin of the first wiring terminal.
[0009] By adopting the technical scheme, the main control chip can timely receive the signal transmitted by the water level detection module (through the third wiring terminal), so that the water level is monitored and processed, and if the water level sensor is abnormal or the water level exceeds the preset range, the main control chip can respond; when the working state of the equipment changes (such as starting, stopping or water level change), the main control chip can timely update the display content of the display panel through the two pins, and enhance the real-time feedback of the user.
[0010] Preferably, the display panel communication module includes a first wiring terminal, the first wiring terminal is connected with the touch display screen, a first pin of the first wiring terminal is grounded, a second pin of the first wiring terminal is connected with an output end of the power supply module, a third pin of the first wiring terminal is connected with an input pin of the main control chip, a fourth pin and a fifth pin of the first wiring terminal are both connected with an output pin of the main control chip, the full water detection module includes a third wiring terminal, the third wiring terminal is connected with the liquid level sensor, a first pin of the third wiring terminal is connected with an output end of the power supply module and an input pin of the main control chip, and a second pin of the third wiring terminal is grounded.
[0011] By adopting the technical scheme, the water level detection sensor is used for monitoring the water level in the water tank, and the first pin of the third wiring terminal is connected with the input pin of the main control module. The main control module can receive the change information of the water level in real time; the power supply module provides stable power supply for the entire circuit, and through the connection with the third wiring terminal, the display panel communication module and other modules, the power supply of each module is ensured; the pin connection design of the first wiring terminal ensures the accurate transmission of data transmission and control signals between the display panel and the main control module.
[0012] Preferably, the temperature and humidity acquisition module includes a second wiring terminal, the second wiring terminal is used for being connected with the temperature and humidity sensor, a first pin of the second wiring terminal is connected with an output pin of the main control chip, a second pin of the second wiring terminal is connected with an input pin and an output pin of the main control chip, a third pin of the second wiring terminal is connected with an input pin of the main control chip, a fourth pin of the second wiring terminal is connected with an output end of the power supply module, and a filter capacitor is connected between the third pin of the second wiring terminal and the fourth pin of the second wiring terminal.
[0013] By adopting the technical scheme, the temperature and humidity acquisition module is connected with the temperature and humidity sensor through the second wiring terminal, so that the temperature and humidity data can be accurately acquired from the environment; the first pin of the second wiring terminal is connected with the output pin of the main control chip, so that the main control chip can send a control signal to the temperature and humidity sensor; the second pin of the second wiring terminal is connected with the input pin and the output pin of the main control chip, so that data can be effectively transmitted between the main control chip and the temperature and humidity sensor; the third pin and the fourth pin of the second wiring terminal are connected with the filter capacitor, so that the filter capacitor can filter high-frequency noise or other interference signals in the power supply circuit.
[0014] Preferably, the WIFI communication module further comprises a fourth wiring terminal, the fourth wiring terminal is used for being connected with the WIFI module, the first pin of the fourth wiring terminal is connected with the output end of the power supply module, the second pin of the fourth wiring terminal is grounded, and the third pin and the fourth pin of the fourth wiring terminal are respectively connected with the output pin and the input pin of the main control chip.
[0015] By adopting the technical scheme, the WIFI communication module can be conveniently integrated with other systems or devices through the standardized wiring terminal design; the wiring terminal design makes the wiring simple and reduces complex hardware connection; the third pin of the fourth wiring terminal is connected with the output pin of the main control chip, and the fourth pin of the fourth wiring terminal is connected with the input pin of the main control chip, so that the main control chip can communicate with the WIFI module in a bidirectional mode.
[0016] Preferably, the driving module further comprises a driving chip and a plurality of switch pieces, the output end of the main control module is connected with the input end of the driving chip, and each of the switch pieces is used for being connected in the power supply circuit of each load, and the driving chip is used for controlling the conduction or the closing of the switch pieces.
[0017] By adopting the technical scheme, the user outputs a control instruction through the touch display screen on the dehumidifier, the main control module outputs a signal after receiving the instruction, and the driving module controls the conduction or the closing of the corresponding switch piece after receiving the signal, so as to control the driving of the load, thereby simplifying the circuit and reducing the cost.
[0018] Preferably, the plurality of loads comprises a compressor, a high-speed fan and a low-speed fan, the switch piece comprises a relay, one end of a coil of the relay is connected with the output pin of the driving chip, the other end of the coil of the relay is connected with the output end of the power supply module, one end of a normally open switch of the relay is connected with the power supply end of the compressor, the high-speed fan or the low-speed fan, and the other end of the normally open switch of the relay is used for being connected with a zero line.
[0019] By adopting the technical scheme, the relay can isolate the main control module and the load circuit, prevent the influence of high current load on the main control module, simplify the design of the main control module through the relay, and enable low voltage signals to control high voltage load; a single driving chip can independently control multiple loads, improving flexibility and adjustability.
[0020] Preferably, the driving module further comprises a buzzer module, the buzzer module comprising a crystal triode and a buzzer, a base of the crystal triode being connected with an output pin of the driving chip, an emitter of the crystal triode being connected with an output end of the power supply module, and the buzzer being connected between a collector of the crystal triode and the output pin of the driving chip.
[0021] By adopting the technical scheme, the control signal can be amplified by the crystal triode to provide sufficient current to drive the buzzer, avoid the risk of overcurrent that may be caused by directly connecting the buzzer, and protect the main control chip; the crystal triode effectively isolates the buzzer current from the main control chip, improving system stability.
[0022] Preferably, the power supply module comprises an alternating current power supply, a transformer coil, a fuse, a first chip, and a power supply chip, a first pin of the first chip is connected with a live wire of the alternating current power supply, a second pin of the first chip is connected with a zero line of the alternating current power supply, a first loop is connected between a third pin and a fourth pin of the first chip, the first loop comprises a first inductor, a third electrolytic capacitor and a fourth electrolytic capacitor connected in parallel, a second inductor connected with the first inductor in parallel, the first loop is connected with a second loop, the second loop comprises an eighteenth resistor, a twenty-first resistor, a first primary of the transformer coil and a third diode connected in series, the second loop further comprises a seventh capacitor connected with the eighteenth resistor in parallel, a cathode of the third diode is connected with a pin 5, a pin 6, a pin 7 and a pin 8 of the power supply chip at the same time, a pin 3 of a second primary of the transformer coil is connected with a twenty-third resistor and a twenty-fourth resistor connected in parallel at the same time, the other end of the twenty-fourth resistor is connected with the ground through a twenty-fifth resistor, and a pin 3 of the power supply chip is connected between the twenty-fourth resistor and the twenty-fifth resistor, the twenty-fifth resistor is connected with a tenth capacitor in parallel, the other end of the twenty-third resistor is connected with a fourth diode, a cathode of the fourth diode is connected with a pin 1, a pin 2 and a pin 4 of the power supply chip, a fifth electrolytic capacitor is connected between the cathode of the fourth diode and the pin 2 of the power supply chip, a ninth capacitor is connected between the pin 1 and the pin 2 of the power supply chip, a secondary of the transformer coil is connected with a third loop, the third loop comprises a first diode, a second diode, a second electrolytic capacitor, an eighth capacitor and a twenty-second resistor, the first diode and the second diode are connected in parallel with each other, the first diode is connected with a sixteenth resistor and a sixth capacitor connected in series with each other in parallel, the second electrolytic capacitor, the eighth capacitor and the resistor are connected in parallel with each other, an anode of the first diode is connected with the secondary of the transformer coil, one end of the second electrolytic capacitor, the eighth capacitor and the resistor is connected with a cathode of the first diode, the other end of the second electrolytic capacitor, the eighth capacitor and the twenty-second resistor is connected with the other end of the secondary of the transformer coil, and the other end of the second electrolytic capacitor, the eighth capacitor and the twenty-second resistor is connected with the ground, and the cathode of the first diode outputs a positive five-volt voltage.
[0023] By adopting the above technical scheme, the alternating current power supply is converted into 5V to supply each sub-module, and normal operation of each module is ensured.
[0024] In summary, the present application has at least one of the following beneficial technical effects:
[0025] 1. The liquid level sensor monitors the water level in the water tank and transmits a signal to the main control module, and the main control module can receive real-time water level change information, when the water level in the water tank exceeds the limit value, the main control module controls the touch display screen to display a water level alarm mark, thereby timely reminding the user that the water tank is full, and avoiding water tank overflow or damage to the equipment;
[0026] 2. The main control chip can timely receive the signal transmitted by the water level detection module (through the third terminal) to realize the monitoring and processing of the water level. If the water level sensor is abnormal or the water level exceeds the preset range, the main control chip can respond; when the working state of the device changes (such as starting, stopping or water level change), the main control chip can timely update the display content of the display panel through the two pins, enhancing the real-time feedback of the user;
[0027] 3. The user outputs control instructions through the touch display screen on the dehumidifier, the main control module outputs signals after receiving the instructions, and the driving module controls the corresponding switch to turn on or off to control the driving of the load, thereby simplifying the circuit and reducing the cost. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is a structural block diagram of the embodiment of the present application.
[0029] Figure 2 is a partial circuit principle diagram of the embodiment of the present application, mainly showing the power supply module.
[0030] Figure 3 is a partial circuit principle diagram of the embodiment of the present application, mainly showing the main control module.
[0031] Figure 4 is a partial circuit principle diagram of the embodiment of the present application, mainly showing the water full detection module and the display panel communication module.
[0032] Figure 5 is a partial circuit principle diagram of the embodiment of the present application, mainly showing the driving module.
[0033] Figure 6 is a partial circuit principle diagram of the embodiment of the present application, mainly showing the WIFI communication module and the temperature and humidity acquisition module.
[0034] Explanation of reference signs: 1, power supply module; 2, main control module; 3, driving module; 4, display panel communication module; 5, temperature and humidity acquisition module; 6, water full detection module; 7, WIFI communication module; 8, liquid level sensor; 9, touch display screen. DETAILED DESCRIPTION
[0035] The present application will be further described in detail below in combination with all the drawings.
[0036] The embodiment of the present application discloses a dehumidifier circuit. Referring to Figure 1 , Figure 2The dehumidifier circuit comprises a power supply module 1, a main control module 2, a display panel communication module 4 and a water full detection module 6, the main control module 2 is connected with a touch display screen 9 through the display panel communication module 4, the main control module 2 is connected with a liquid level sensor 8 through the water full detection module 6, the liquid level sensor 8 adopts a Honeywell WLD2 model, the liquid level sensor 8 is used for detecting the water level in a water tank and outputting a water level signal, the main control module 2 receives the water level signal and calculates a water level value, when the water level value is higher than a set value, the touch display screen 9 is controlled to display an alarm mark, and the set value can be input in advance by a designer.
[0037] The power supply module 1 is used for providing 5V to each sub-module, the power supply module 1 comprises an alternating current power supply, a transformer coil T1, a fuse FUSE1, a first chip DB1, a power supply chip U3, a first output interface and a second output interface, the alternating current power supply adopts 220V alternating current and is connected through two alternating current access plugs ACN / ACL, the fuse is a fuse wire, which is used for being fused when a part of the circuit has a short circuit or other faults, the ACN and the ACL are connected with a pressure-sensitive resistor ZNR1, a capacitor CX1 and series-connected resistors R17 and R20 in parallel with each other, when the grid voltage is unstable and has a sharp voltage or there is thunder and lightning in the weather, the pressure-sensitive resistor can be broken down instantly, the resistor is 0 ohm, directly forms a loop through the FUSE1 and the ZNR1 for the incoming voltage, directly short-circuits, burns the fuse, and ensures the safety of the subsequent circuit. The first chip adopts a rectifier bridge chip, a first pin of the first chip is connected with the ACN through a resistor NR1, a second pin of the first chip is connected with the ACL, a first loop is connected between a third pin and a fourth pin of the first chip, the first loop comprises a pi-type filter, the pi-type filter comprises a first inductor L1, third and fourth electrolytic capacitors EC3 and EC4 connected in parallel, and a second inductor L2 connected with the first inductor in parallel, the first loop is connected with a second loop, the second loop comprises series-connected resistors R18, R21, a first primary of the transformer coil T1 and a diode D3, the second loop further comprises a capacitor C7 connected with the resistor R18 in parallel, a cathode of the diode D3 is also connected with 5 / 6 / 7 / 8 pins of the power supply chip U3 at the same time, the power supply chip adopts a KP2161MSGA model chip, a 4 pin of a second primary of the transformer coil T1 is grounded, a 3 pin of the second primary of the transformer coil T1 is connected with resistors R23 and R24 in parallel with each other at the same time, another end of the resistor R24 is grounded through a resistor 25, and the resistor R24 and the resistor R25 are connected with the 3 pin of the power supply chip U3, the resistor 25 is connected with a capacitor C10 in parallel, another end of the resistor R23 is connected with a diode D4, a cathode of the diode D4 is connected with 1 / 2 / 4 pins of the power supply chip U3, and a cathode of the diode D4 is connected with a second pin of the power supply chip U3 through an electrolytic capacitor EC5, and 1 / 2 of the power supply chip U3 are connected with a capacitor C9.
[0038] The secondary connection of the transformer coil T1 is connected with a third circuit, the third circuit comprises a first diode D1, a second diode D2, a second electrolytic capacitor EC2, an eighth capacitor C8 and a resistor R22, the first diode D1 and the second diode D2 are connected in parallel with each other, the first diode D1 is connected in parallel with a resistor R16 and a capacitor C6 which are connected in series with each other, the second electrolytic capacitor EC2, the eighth capacitor C8 and the resistor R22 are connected in parallel with each other, the anode of the first diode D1 is connected with the secondary connection of the transformer coil T1, one end of the second electrolytic capacitor EC2, the eighth capacitor C8 and the resistor R22 is connected with the cathode of the first diode D1, the other end of the second electrolytic capacitor EC2, the eighth capacitor C8 and the resistor R22 is connected with the other end of the secondary connection of the transformer coil T1, and the other end of the second electrolytic capacitor EC2, the eighth capacitor C8 and the resistor R22 is grounded, the first output interface and the second output interface are respectively located at two ends of the resistor R22, and the first output interface outputs a positive 5V, and the first output interface is grounded.
[0039] With reference to Figure 3 Figure 4 The main control module 2 comprises a main control chip U1, the VDD pin of the main control chip is connected with the first output interface of the power supply module 1 through the capacitor L4, the VSS pin of the main control chip is grounded through the capacitor L3, the main control chip adopts the chip of the model SC92F8482M20U&SOP20, is responsible for the total logic processing, receives the key board, the sensor interface and the signal of the mobile phone APP, and after the logic processing, the corresponding working state and alarm information are displayed on the display board and the mobile phone APP.
[0040] The display board communication module 4 is used for using the TM1628 communication mode, is responsible for receiving the key signal of the display board and sending the corresponding display signal to the display board, and the display board communication module 4 comprises a first wiring terminal CN1, the first wiring terminal is used for being connected with the touch display screen 9, the first pin of the first wiring terminal is grounded, the second pin of the first wiring terminal is connected with the output end of the power supply module, the third pin of the first wiring terminal is connected with the input pin of the main control chip through the resistor R3, and the fourth pin and the fifth pin of the first wiring terminal are connected with two output pins of the main control chip through the resistor R7 and the resistor R10 respectively.
[0041] The sub-module circuit further comprises a water full detection circuit 6, the water full detection circuit 6 is used for IO port detection, detects whether the water in the water tank is full, needs to alarm and stop working if full, and the water full detection circuit 6 comprises a third wiring terminal CN3, the third wiring terminal is used for being connected with the liquid level sensor 8, the first pin of the third wiring terminal is connected with the output end of the power supply module and the input pin of the main control chip through the resistor R2 and the resistor R8 respectively, the capacitor C1 is connected between the resistor R8 and the input pin of the main control chip, and the other end of the capacitor C1 is grounded.
[0042] With reference toFigure 3 、 Figure 5 , the driving module 3 and a plurality of loads, the master control module 2 drives the load through the driving module 3, the power supply module 1 is used for powering the master control module 2 and the driving module 3, the driving module 3 includes a driving chip and three switch components, the switch component adopts a relay, the plurality of loads are a compressor, a high-speed fan and a low-speed fan, the 1 / 2 / 3 / 4 / 5 / 6 / 7 pins of the driving chip are connected with the output pins of the master control chip, the 2 end of the relay coil is connected with the output pin of the driving chip, the 1 end of the relay coil is connected with the output end of the power supply module 1 to receive +5V, the normally open switch 4 end of the relay is connected with the wiring terminal FAN1 and the COMP1 wiring port, the normally open switch 4 ends of the two relays are respectively connected with the 1 pin and the 2 pin of the wiring terminal FAN1, the COMP1 wiring port is connected with the power supply end of the compressor, the wiring terminal FAN1 is connected with the power supply end of the high-speed fan and the low-speed fan, the 3 pin of the wiring terminal FAN1 is connected with the firewire, the normally open switch 3 end of the relay is used for connecting with the zero line, the driving module 3 further includes a buzzer module, the buzzer module includes a PNP crystal triode and a buzzer, the base of the crystal triode is connected with the output pin of the driving chip, the emitter of the crystal triode is connected with the output end of the power supply module 1, the buzzer is connected between the collector of the crystal triode and the output pin of the driving chip, the capacitor C3 is connected between the collector of the crystal triode and the buzzer, the driving chip is further connected with the UV lamp and the negative ion generator through the fifth wiring terminal CN5 and the sixth wiring terminal CN6.
[0043] Referring to Figure 3 、 Figure 6 , the sub-module circuit further includes a temperature and humidity acquisition module 5, the temperature and humidity acquisition module 5 is used for AD detection, responsible for collecting the real-time temperature and humidity of the environment, the temperature and humidity acquisition module 5 includes a second wiring terminal CN2, the second wiring terminal is used for connecting with a temperature and humidity sensor, the first pin of the second wiring terminal is connected with the output pin of the master control chip, the second pin of the second wiring terminal is connected with the input pin and the output pin of the master control chip through the resistor R1 and the resistor R6 respectively, the third pin of the second wiring terminal is connected with the input pin of the master control chip through the resistor R9, the third pin of the second wiring terminal and the input pin of the master control chip are connected with the resistor R11 and the filter capacitor, the other end of the resistor R11 is grounded, the fourth pin of the second wiring terminal is connected with the output end +5V of the power supply module, the other end of the filter capacitor is connected with +5V.
[0044] The sub-module circuit further comprises a WIFI communication module 7, the WIFI communication module 7 comprises a fourth connecting terminal CN4, the fourth connecting terminal is used for being connected with the WIFI module, a first pin of the fourth connecting terminal is connected with the output terminal of the power supply module, a second pin of the fourth connecting terminal is grounded, a third pin and a fourth pin of the fourth connecting terminal are respectively connected with an output pin and an input pin of the master control chip, and the third pin and the fourth pin of the fourth connecting terminal are respectively connected with +5V through a resistor R4 and a resistor R5. The master control chip receives the operation instruction on the mobile phone APP and the real-time feedback current working state and alarm information through the module.
[0045] The implementation principle of the dehumidifier circuit in the embodiment of the application is as follows: the liquid level sensor 8 monitors the water level in the water tank and transmits a signal to the master control module, the master control module 2 can receive the change information of the water level in real time, when the water level in the water tank exceeds the limit value, the master control module 2 controls the touch display screen 9 to display a water level alarm mark, so as to timely remind the user that the water tank is full, and avoid the water tank overflowing or damaging the equipment.
[0046] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.
Claims
1. A dehumidifier circuit, characterized by: Including power module (1), main control module (2), display board communication module (4) and water full detection module (6), including power module (1), main control module (2), display board communication module (4) and water full detection module (6), the display board communication module (4) is connected with touch display screen (9), the input end of display board communication module (4) is connected with the output pin of main control module (2), the input end of water full detection module (6) is connected with liquid level sensor (8), the liquid level sensor (8) is used to detect the water level in the water tank, the output end of water full detection module (6) is connected with the input pin of main control module (2), the power module (1) is used to power supply module (2), display board communication module (4) and water full detection module (6).
2. A dehumidifier circuit according to claim 1, wherein: The main control module (2) includes a main control chip, and the input pin of the main control chip is connected with the first pin of the third terminal, and the two output pins of the main control chip are respectively connected with the fourth pin and the fifth pin of the first terminal.
3. A dehumidifier circuit according to claim 2, wherein: The display board communication module (4) includes a first terminal, the first terminal is connected with the touch display screen (9), the first pin of the first terminal is grounded, the second pin of the first terminal is connected with the output end of the power module (1), the third pin of the first terminal is connected with the input pin of the main control chip, the fourth pin and the fifth pin of the first terminal are connected with the output pin of the main control chip, the water full detection module (6) includes a third terminal, the third terminal is connected with the liquid level sensor (8), the first pin of the third terminal is connected with the output end of the power module (1) and the input pin of the main control chip, and the second pin of the third terminal is grounded.
4. A dehumidifier circuit according to claim 2, wherein: It also includes a temperature and humidity acquisition module (5), the temperature and humidity acquisition module (5) includes a second terminal, the second terminal is used to be connected with a temperature and humidity sensor, the first pin of the second terminal is connected with the output pin of the main control chip, the second pin of the second terminal is connected with the input pin and the output pin of the main control chip, the third pin of the second terminal is connected with the input pin of the main control chip, the fourth pin of the second terminal is connected with the output end of the power module, and the third pin of the second terminal is connected with the fourth pin of the second terminal.
5. A dehumidifier circuit according to claim 2, wherein: It also includes a WIFI communication module (7), the WIFI communication module (7) includes a fourth terminal, the fourth terminal is used to be connected with a WIFI module, the first pin of the fourth terminal is connected with the output end of the power module, the second pin of the fourth terminal is grounded, and the third pin and the fourth pin of the fourth terminal are respectively connected with the output pin and the input pin of the main control chip.
6. A dehumidifier circuit according to claim 2, wherein: The drive module (3) comprises a drive chip and a plurality of switch elements, the output end of the main control module (2) is connected with the input end of the drive chip, and each switch element is used for being connected in the power supply circuit of each load, and the drive chip is used for controlling the conduction or closing of the switch element.
7. A dehumidifier circuit according to claim 6, wherein: The plurality of loads comprise a compressor, a high-speed fan and a low-speed fan, the switch element comprises a relay, one end of a coil of the relay is connected with an output pin of the drive chip, the other end of the coil of the relay is connected with the output end of the power supply module, one end of a normally open switch of the relay is connected with a power supply end of the compressor, the high-speed fan or the low-speed fan, and the other end of the normally open switch of the relay is used for being connected with a zero line.
8. A dehumidifier circuit according to claim 6, wherein: The drive module (3) further comprises a buzzer module, the buzzer module comprises a crystal triode and a buzzer, a base of the crystal triode is connected with an output pin of the drive chip, an emitter of the crystal triode is connected with the output end of the power supply module, and the buzzer is connected between a collector of the crystal triode and the output pin of the drive chip.
9. The dehumidifier circuit of claim 1, wherein: The power supply module (1) includes an AC power supply, a transformer coil, a fuse, a first chip and a power supply chip, the first pin of the first chip is connected with the live wire of the AC power supply, the second pin of the first chip is connected with the zero line of the AC power supply, the third pin and the fourth pin of the first chip are connected with the first loop, the first loop includes a first inductor, a third electrolytic capacitor and a fourth electrolytic capacitor connected in parallel, a second inductor connected with the first inductor in parallel, the first loop is connected with a second loop, the second loop includes an eighteenth resistor, a twenty-first resistor, a first primary of the transformer coil and a third diode connected in series, the second loop further includes a seventh capacitor connected with the eighteenth resistor in parallel, the cathode of the third diode is connected with pin 5, pin 6, pin 7 and pin 8 of the power supply chip at the same time, the pin 3 of the second primary of the transformer coil is connected with a twenty-third resistor and a twenty-fourth resistor connected in parallel at the same time, the other end of the twenty-fourth resistor is connected with the ground through a twenty-fifth resistor, and the twenty-fourth resistor and the twenty-fifth resistor are connected with pin 3 of the power supply chip, the twenty-fifth resistor is connected with a tenth capacitor in parallel, the other end of the twenty-third resistor is connected with a fourth diode, the cathode of the fourth diode is connected with pin 1, pin 2 and pin 4 of the power supply chip, a fifth electrolytic capacitor is connected between the cathode of the fourth diode and pin 2 of the power supply chip, a ninth capacitor is connected between pin 1 and pin 2 of the power supply chip, the secondary of the transformer coil is connected with a third loop, the third loop includes a first diode, a second diode, a second electrolytic capacitor, an eighth capacitor and a twenty-second resistor, the first diode and the second diode are connected in parallel with each other, the first diode is connected with a sixteenth resistor and a sixth capacitor connected in series with each other in parallel, the second electrolytic capacitor, the eighth capacitor and the resistor are connected in parallel with each other, the anode of the first diode is connected with the secondary of the transformer coil, one end of the second electrolytic capacitor, the eighth capacitor and the resistor is connected with the cathode of the first diode, the other end of the second electrolytic capacitor, the eighth capacitor and the twenty-second resistor is connected with the other end of the secondary of the transformer coil, and the other end of the second electrolytic capacitor, the eighth capacitor and the twenty-second resistor is grounded, and the cathode of the first diode outputs a positive five-volt voltage.