Intelligent closestool power supply circuit and intelligent closestool
By simplifying detection by using the connection between MOS tubes and transistors in the smart toilet power supply circuit, the complexity of detecting mains and backup power is solved, the failure rate is reduced, and effective judgment of mains and backup power is achieved.
Patent Information
- Application Number
- CN202420803262.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing smart toilets require additional detection devices when detecting mains and backup power, which increases circuit complexity and high failure rate due to diode heating.
By connecting the main control circuit and the battery box control circuit in the smart toilet power supply circuit, the connection between the MOS tube and the transistor periodically outputs the backup power-related electrical signals, and receives the electrical signals through the timing judgment unit to determine whether it is mains or backup power. Use electricity and avoid the use of additional detection devices.
The intelligent toilet circuit structure is simplified, the failure rate is reduced, and the circuit board damage is avoided due to diode heating.
Smart Images
Figure CN222321185U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to but is not limited to the technical field of sanitary ware, and in particular to a smart toilet power supply circuit and a smart toilet. Background Art
[0002] A smart toilet is a sanitary device that combines modern technology and convenience. It is usually equipped with various intelligent functions to provide a more comfortable and convenient user experience. Usually, a smart toilet is connected to the mains power supply and also to its own battery box. When the mains power supply stops, the smart toilet will enter emergency mode and complete functions such as flushing through the backup power stored in the battery box. Among them, the emergency mode is different from the normal mode under the mains power state, so it is very necessary to detect the current power source of the smart toilet.
[0003] In the related art, a diode is provided to isolate the mains power and the backup power, so as to detect whether the mains power or the backup power is used when performing functions such as flushing. However, such a detection method requires an additional detection device to be provided in the smart toilet, which increases the complexity of the circuit structure of the smart toilet. In addition, when the current passes through the diode, a voltage drop will be generated, which will cause the diode to heat up and further damage the circuit board. Therefore, the failure rate of the smart toilet is relatively high. Utility Model Content
[0004] The embodiment of the present application provides a smart toilet power supply circuit and a smart toilet, which can simplify the circuit while enabling the smart toilet to detect mains power and emergency power and reduce the failure rate of the smart toilet.
[0005] In a first aspect, an embodiment of the present application provides a smart toilet power supply circuit, comprising:
[0006] A battery box control circuit, the battery box control circuit comprises a battery power input module and a control unit connected to each other, the battery power input module comprises a power input terminal and a power output terminal, the control unit comprises a standby power output terminal, the power input terminal is used to connect to the battery compartment, the battery power input module performs voltage conversion on the electrical signal from the battery compartment and transmits the voltage to the control unit through the power output terminal, and the control unit periodically outputs a first electrical signal through the standby power output terminal;
[0007] A main control circuit, the main control circuit includes a timing judgment unit, the timing judgment unit includes a power supply input terminal, the power supply input terminal includes a backup power input terminal and a mains power input terminal, the backup power input terminal is connected to the backup power output terminal to receive the first electrical signal, and the mains power input terminal is used to connect to a mains power supply to receive a second electrical signal from the mains power supply.
[0008] In some embodiments, the battery power input module is also connected to an anti-reverse connection module, the anti-reverse connection module includes a first MOS tube and a voltage divider resistor, the first end of the first MOS tube is connected to the power output end, the second end of the first MOS tube is connected to the voltage divider resistor, the third end of the first MOS tube is respectively connected to the control unit and the self-locking module, the first end of the voltage divider resistor is connected to the first MOS tube, the second end of the voltage divider resistor is grounded, and the self-locking module is used to control the on and off of the power supply of the battery compartment.
[0009] In some embodiments, the self-locking module includes a second MOS tube and a first transistor, the first end of the second MOS tube is connected to the first MOS tube, the second end of the second MOS tube is connected to the first transistor, the third end of the second MOS tube is connected to the voltage conversion module, the first end of the first transistor is connected to the second MOS tube, the second end of the first transistor is connected to the control unit, the third end of the first transistor is grounded, and the voltage conversion module is used to convert the voltage of the electrical signal from the battery compartment.
[0010] In some embodiments, the voltage conversion module includes a voltage conversion component, a first capacitor and a second capacitor, the first end of the voltage conversion component is connected to the first capacitor, the second end of the voltage conversion component is connected to the second capacitor, the third end of the voltage conversion component is grounded, the first end of the first capacitor is connected to the second MOS tube, the second end of the first capacitor is connected to the voltage conversion component, the first end of the second capacitor is connected to the voltage conversion component, the second end of the second capacitor is connected to the burning module, and the burning module is used to transmit the voltage-converted electrical signal to the control unit.
[0011] In some embodiments, a first end of the programming module is connected to the second capacitor, a second end of the programming module is grounded, and a third end and a fourth end of the programming module are connected to the control unit.
[0012] In some embodiments, the control unit includes a backup power control module and a backup power output module connected to each other, the backup power control module includes a clock control pin, an input control pin, a self-locking control pin and an output control pin, the backup power output module includes a third MOS tube and a second triode, the clock control pin is connected to the second end of the burning module, the input control pin is connected to the third end of the burning module, the self-locking control pin is connected to the first triode, the first end of the third MOS tube is connected to the first MOS tube, the second end of the third MOS tube is connected to the second triode, the third end of the third MOS tube is connected to the backup power output end, the first end of the second triode is connected to the third MOS tube, the second end of the second triode is connected to the output control pin, and the third end of the second triode is grounded.
[0013] In some embodiments, the battery compartment includes an energy storage module and a mains power conversion module that are interconnected. The battery compartment is also connected to the mains power input terminal. The mains power conversion module is used to convert the mains power supply into storable backup power, and the energy storage module is used to store the backup power in the energy storage module.
[0014] In some embodiments, the main control circuit also includes a power supply output end, which is connected to the flush control module. The flush control module includes a flush pin, which is connected to the power supply output end, and the flush pin is used to receive the first electrical signal or the second electrical signal.
[0015] In a second aspect, an embodiment of the present application provides a smart toilet, which includes the smart toilet power supply circuit described in the first aspect.
[0016] In some embodiments, the smart toilet is provided with a remote control module, and the smart toilet power supply circuit is connected to the remote control module.
[0017] The embodiments of the present application include at least the following beneficial effects: compared with the need to additionally set up a detection device in the smart toilet to realize the detection of AC power and emergency power, the embodiments of the present application connect the main control circuit with the battery box control circuit, wherein the battery box control circuit periodically outputs a first electrical signal related to the backup power through the connection between the MOS tube and the transistor and the conduction between the pins; and receives the first electrical signal or the second electrical signal related to the AC power through the timing judgment unit set in the main control circuit. In this way, it is only necessary to receive the electrical signal to determine whether it is AC power or backup power, avoiding the use of additional detection devices to detect and cause related components to heat up and cause damage to the circuit board. The present application reduces the failure rate of smart toilets. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of an optional functional module of a smart toilet power supply circuit provided by an embodiment of the present application;
[0019] Figure 2 This is an optional module schematic diagram of an anti-reverse connection module provided in an embodiment of the present application;
[0020] Figure 3 This is an optional module schematic diagram of a self-locking module provided by an embodiment of the present application;
[0021] Figure 4 is an optional module schematic diagram of a voltage conversion module provided by an embodiment of the present application;
[0022] Figure 5 This is an optional module schematic diagram of a burning module provided in an embodiment of the present application;
[0023] Figure 6 It is an optional module schematic diagram of a backup power control module provided by an embodiment of the present application;
[0024] Figure 7 This is an optional module schematic diagram of a backup electrical output module provided by an embodiment of the present application;
[0025] Figure 8 is an optional module schematic diagram of a flushing control module provided in an embodiment of the present application;
[0026] Reference numerals: battery box control circuit 110 , battery compartment 120 , battery power input module 130 , control unit 140 , main control circuit 150 , timing judgment unit 160 . DETAILED DESCRIPTION
[0027] In the description of the present application, it should be understood that the descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0028] It should be understood that in the description of the embodiments of the present application, "a" means more than one, "a plurality" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0029] In the description of the embodiments of the present application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the embodiments of the present application based on the specific content of the technical solution.
[0030] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0031] A smart toilet is a sanitary device that combines modern technology and convenience. It is usually equipped with various intelligent functions to provide a more comfortable and convenient user experience. Usually, a smart toilet is connected to the mains power supply and also to its own battery box. When the mains power supply stops, the smart toilet will enter emergency mode and complete functions such as flushing through the backup power stored in the battery box. Among them, the emergency mode is different from the normal mode under the mains power state, so it is very necessary to detect the current power source of the smart toilet.
[0032] In the related art, a diode is provided to isolate the mains power and the backup power, so as to detect whether the mains power or the backup power is used when performing functions such as flushing. However, such a detection method requires an additional detection device to be provided in the smart toilet, which increases the complexity of the circuit structure of the smart toilet. In addition, when the current passes through the diode, a voltage drop will be generated, which will cause the diode to heat up and further damage the circuit board. Therefore, the failure rate of the smart toilet is relatively high.
[0033] The following is combined with Figures 1 to 8 , further elaborating on the embodiments of the present application, wherein the reference numerals of the various structures are in the attached Figures 1 to 8 Mentioned in .
[0034] The embodiment of the present application provides a smart toilet power supply circuit and a smart toilet, wherein the smart toilet power supply circuit includes: a battery box control circuit 110, the battery box control circuit 110 includes a battery power input module 130 and a control unit 140 connected to each other, the battery power input module 130 includes a power input terminal and a power output terminal, the control unit 140 includes a backup power output terminal, the power input terminal is used to connect with the battery compartment 120, the battery power input module 130 converts the voltage of the electrical signal from the battery compartment 120, and transmits it to the control unit 140 through the power output terminal, and the control unit 140 periodically outputs a first electrical signal through the backup power output terminal; a main control circuit 150, the main control circuit 150 includes a timing judgment unit 160, the timing judgment unit 160 includes a power input terminal, the power input terminal includes a backup power input terminal and a mains input terminal, the backup power input terminal is connected to the backup power output terminal to receive the first electrical signal, and the mains input terminal is used to connect to the mains power supply to receive the second electrical signal of the mains power supply.
[0035] Furthermore, if Figure 1 As shown, Figure 1 It is an optional functional module diagram of a smart toilet power supply circuit provided by an embodiment of the present application, wherein an area for placing a backup battery is provided in the battery compartment 120, and the backup battery can provide backup power to the control unit 140 through the battery power input module 130 when the city power is cut off. The battery current originally output by the backup battery is processed by the battery power input module 130 and periodically outputs a first electrical signal.
[0036] Among them, the battery compartment 120 may be placed with a backup battery such as a lead-acid battery, a lithium-ion battery, a lithium polymer battery or a nickel-metal hydride battery that can convert chemical energy into electrical energy, and the embodiment of the present application does not make specific restrictions.
[0037] Furthermore, the mains power supply is usually provided by the power system of the area, wherein the standard voltage and frequency of the mains power supply are 220-240 volts and 50 hertz respectively. The mains power supply is designed to meet the needs of daily life and industry, and is used to drive various equipment and facilities, such as lighting, household appliances, industrial machines, etc.
[0038] Furthermore, the control unit 140 may be a microcontroller unit (MCU), a programmable logic controller (PLC), or an application-specific integrated circuit (ASIC), and the embodiments of the present application do not make any specific limitations.
[0039] Furthermore, the timing judgment unit 160 may include a timing detector, a timing comparator, a memory or a timer, which is not specifically limited in the embodiments of the present application.
[0040] In some embodiments, the battery power input module 130 is also connected to an anti-reverse connection module, which includes a first MOS tube and a voltage-dividing resistor. The first end of the first MOS tube is connected to the power output end, the second end of the first MOS tube is connected to the voltage-dividing resistor, and the third end of the first MOS tube is respectively connected to the control unit 140 and the self-locking module. The first end of the first voltage-dividing resistor is connected to the first MOS tube, and the second end of the second voltage-dividing resistor is grounded. The self-locking module is used to control the on and off of the power supply of the battery compartment 120.
[0041] Furthermore, in order to prevent the damage of the smart toilet power supply circuit caused by the reverse connection of the positive and negative poles of the backup battery with the positive access point and the negative access point in the battery compartment 120, an anti-reverse connection module is also provided in the embodiment of the present application, such as Figure 2 As shown, Figure 2 It is an optional module schematic diagram of an anti-reverse connection module provided by an embodiment of the present application, wherein the first MOS tube has three terminals, a1 is the first terminal of the first MOS tube, a2 is the second terminal of the first MOS tube, and a3 is the third terminal of the first MOS tube. Wherein, MOS tube is the abbreviation of Metal Oxide Semiconductor Field Effect Transistor (MOSFET), which is a commonly used semiconductor device, commonly used to realize the functions of switching, amplification and regulation in electronic circuits, and the MOS tube in the embodiment of the present application can be: N-channel MOS tube (N-MOSFET) or P-channel MOS tube (P-MOSFET), wherein the main difference between N-MOSFET and P-MOSFET is the doping type of the channel region and the main carrier type when conducting, and the channel region refers to the semiconductor region located between the source and the drain.
[0042] It should be noted that the first MOS tube can also be a bipolar MOS tube (DMOS), a complementary metal oxide semiconductor (CMOS), etc., wherein DMOS combines the advantages of N-MOSFET and P-MOSFET, and therefore has a lower on-resistance and a higher power handling capability, while CMOS has low power consumption, high integration and good anti-interference capability. The specific first MOS tube can be selected according to actual conditions, and the embodiments of the present application do not make specific restrictions.
[0043] Further, R1 is a voltage-dividing resistor, b1 is a first end of the voltage-dividing resistor, b2 is a second end of the voltage-dividing resistor, b2 is grounded, and a1 is connected to the power output end. When the positive pole of the backup battery is connected to the positive access point, and the negative pole of the backup battery is connected to the negative access point, the backup battery is correctly placed, and the current is guided from the first end of the first MOS tube to the third end, and the backup battery is turned on. Otherwise, the backup battery is placed incorrectly, and the current cannot be turned on.
[0044] Furthermore, the third end of the first MOS tube is connected to the control unit 140 and the self-locking module respectively, wherein the self-locking module is used to control the on and off of the backup power, and the control unit 140 is used to monitor, control, and process the backup power from the battery compartment 120. It can be understood that the control voltage required by some pins of the control unit 140 is relatively small, therefore, the backup power from the battery compartment 120 should not be directly connected to the corresponding pins of the control unit 140, so it is necessary to convert the backup voltage from the backup battery.
[0045] Furthermore, the reverse connection prevention module also includes an emergency brake switch. When the self-locking module that controls the on / off of the backup power fails, the emergency brake switch can be used to control the on / off of the backup power. Figure 2 As shown, Figure 2 An emergency brake switch can be set at the TP1 end in the circuit. When the emergency brake switch is pressed, the b2 end and the a1 end are connected and electrically conductive, and the backup power from the power output end flows into the ground end through the b2 end, and the backup power supply is interrupted. In addition, a voltage divider resistor R2 and a diode can be set in the anti-reverse connection module to adjust the backup power from the power output end and protect the components in the anti-reverse connection module from being damaged.
[0046] In some embodiments, the self-locking module includes a second MOS tube and a first transistor, the first end of the second MOS tube is connected to the first MOS tube, the second end of the second MOS tube is connected to the first transistor, the third end of the second MOS tube is connected to the voltage conversion module, the first end of the first transistor is connected to the second MOS tube, the second end of the first transistor is connected to the control unit 140, the third end of the first transistor is grounded, and the voltage conversion module is used to convert the voltage of the electrical signal from the battery compartment 120.
[0047] Furthermore, the second MOS transistor may be the same component as the first MOS transistor, which will not be described in detail here. The first transistor may be an NPN transistor (NPN Bipolar Junction Transistor, NPN), a PNP transistor (PN-PBipolar Junction Transistor, PNP), a power transistor or a bipolar field effect transistor, which is not specifically limited in the embodiments of the present application. Figure 3 As shown, Figure 3 : is an optional module schematic diagram of a self-locking module provided by an embodiment of the present application, wherein the second MOS tube has three ends, a4 is the first end of the second MOS tube, a5 is the second end of the second MOS tube, and a6 is the third end of the second MOS tube, wherein, since the a3 end is connected to the a4 end, Figure 2 The output of a3 terminal is Figure 3 The input of the a4 terminal is also recorded as +VB, and the TP2 pin can be used to connect with other pins according to actual conditions. In addition, the first transistor has three terminals, b3 is recorded as the first terminal of the first transistor, b4 is recorded as the second terminal of the first transistor, and b5 is recorded as the third terminal of the first transistor. Before being connected to the control unit 140, the b4 terminal can be connected to a voltage-dividing resistor R3 to prevent the current in the self-locking module from damaging the control unit 140, wherein the second end of the first transistor will be connected to the System_SW pin in the backup power control module in the control unit 140 to realize the control of the self-locking module by the backup power control module, and then periodically output the first electrical signal.
[0048] Furthermore, the self-locking module is also provided with a self-locking switch, wherein the self-locking switch can be arranged between the resistor R5 and the b3 end of the first transistor. When the self-locking switch is pressed, the current in the anti-reverse connection circuit will flow into the self-locking module. Under normal circumstances, once the city power is disconnected, the battery box control circuit 110 will start automatically to supply backup power to the various functional modules of the smart toilet for use. However, in the event of a power outage, continuous power supply causes a waste of electricity. Therefore, a self-locking switch is set to control the self-locking module, thereby controlling the on and off of the backup power in the smart toilet. In this way, the user will only supply power when using the smart toilet, which can save electricity.
[0049] Further, the a6 terminal is connected to the voltage conversion module, and the voltage conversion module is connected to the control unit 140, and the voltage conversion module is used to convert the backup power from the backup battery to the available range of the control unit 140. The a5 terminal is connected to the first triode, and the b4 terminal is connected to the control unit 140. When the self-locking switch is pressed, the backup power is conducted from the a4 terminal to the a6 terminal, so that the converted current acts on the control unit 140, wherein the control unit 140 is provided with a System_SW pin, and when the control unit 140 is started, the System_SW pin on the self-locking module is set high, thereby completing the opening of the battery power input module. In addition, the self-locking module can also be provided with a resistor R4, a resistor R5 and a capacitor C1, and the resistor R4, the resistor R5 and the capacitor C1 are all used for voltage stabilization.
[0050] In some embodiments, the voltage conversion module includes a voltage conversion component, a first capacitor and a second capacitor, the first end of the voltage conversion component is connected to the first capacitor, the second end of the voltage conversion component is connected to the second capacitor, the third end of the voltage conversion component is grounded, the first end of the first capacitor is connected to the second MOS tube, the second end of the first capacitor is connected to the voltage conversion component, the first end of the second capacitor is connected to the voltage conversion component, and the second end of the second capacitor is connected to the burning module, and the burning module is used to transmit the voltage-converted electrical signal to the control unit 140.
[0051] Furthermore, the self-locking module is also connected to the voltage conversion module, such as Figure 4 As shown, Figure 4 : is an optional module schematic diagram of a voltage conversion module provided by an embodiment of the present application, wherein C2 is a first capacitor, C3 is a second capacitor, and a7 terminal is a first terminal of the voltage conversion module, a8 terminal is a second terminal of the voltage conversion module, and a9 terminal is a third terminal of the voltage conversion module. Since a6 terminal is connected to a7 terminal, Figure 3 The output of the a6 terminal is Figure 4 The input of the a7 terminal is denoted as VBS. The first capacitor and the second capacitor are used for voltage stabilization. The voltage conversion component is used to convert the electrical signal from the battery compartment 120 into a voltage. The voltage after voltage conversion can act on the control unit 140. For example, the control voltage required by some pins of the control unit 140 is 5 volts (+5V), and the backup voltage provided by the backup battery is 12 volts. Then the voltage conversion component can convert the 12 volt backup voltage into a 5 volt control voltage. Capacitor C4 is used for voltage stabilization.
[0052] Furthermore, the self-locking module may also be provided with a resistor R6, and the resistor R6 is connected to another pin VB_AD, and the other end of the pin VB_AD is connected to certain pins in the control unit 140, so as to provide a long current to the corresponding pins of the control unit 140, and the resistor R6 is used for voltage stabilization. In addition, the self-locking module may also be provided with a capacitor C5 and a resistor R7 connected to the pin VB_AD, and the capacitor C5 and the resistor R7 can form a filter, and the filter can remove noise in the circuit or select signals within a specific frequency range.
[0053] Furthermore, the voltage conversion component may be a voltage stabilizer, a buck converter, a voltage regulator, etc., and the embodiments of the present application do not impose any specific limitations thereto.
[0054] In some embodiments, a first terminal of the burning module is connected to the second capacitor, a second terminal of the burning module is grounded, and a third terminal and a fourth terminal of the burning module are connected to the control unit 140 .
[0055] Furthermore, the voltage conversion module is also connected to the burning module, such as Figure 5 As shown, Figure 5 This is an optional module schematic diagram of a burning module provided by an embodiment of the present application, wherein the burning module can be a burning pin header, end 1 is the first end of the burning pin header, end 2 is the second end of the burning pin header, end 3 is the third end of the burning pin header, and end 4 is the fourth end of the burning pin header.
[0056] In some embodiments, the control unit 140 includes a backup power control module and a backup power output module that are interconnected. The backup power control module includes a clock control pin, an input control pin, a self-locking control pin and an output control pin. The backup power output module includes a third MOS tube and a second triode. The clock control pin is connected to the second end of the burning module, the input control pin is connected to the third end of the burning module, the self-locking control pin is connected to the first triode, the first end of the third MOS tube is connected to the first MOS tube, the second end of the third MOS tube is connected to the second triode, the third end of the third MOS tube is connected to the backup power output end, the first end of the second triode is connected to the third MOS tube, the second end of the second triode is connected to the output control pin, and the third end of the second triode is grounded.
[0057] Furthermore, if Figure 6 As shown, Figure 6 This is an optional module schematic diagram of a backup power control module provided by an embodiment of the present application. The backup power control module can be a microcontroller unit, a programmable logic controller, or a dedicated integrated circuit, and the embodiment of the present application does not make specific restrictions. Among them, pin 1 (CLK pin) in the backup power control module is a clock control pin, pin 15 (SWD IO pin) in the backup power control module is an input control pin, pin 17 (System_SW pin) in the backup power control module is a self-locking control pin, and pin 17 (BAT_SW pin) in the backup power control module is an output control pin. In addition, pin 19 (VB_AD pin) in the backup power control module is a power pin, and pin 19 is connected to the VB_AD pin in the voltage conversion module to receive the backup power provided by the backup battery.
[0058] Furthermore, other pins (such as pin 2, etc.) of the backup power control module can be connected to other modules through wiring, and can be specifically set according to actual conditions, and the embodiments of the present application do not make specific restrictions.
[0059] In some embodiments, Figure 7 As shown, Figure 7: is an optional module schematic diagram of a backup electrical output module provided by an embodiment of the present application, wherein the third MOS tube has three terminals, a10 is the first terminal of the third MOS tube, a11 is the second terminal of the third MOS tube, and a12 is the third terminal of the third MOS tube, wherein, since the a3 terminal is connected to the a10 terminal, Figure 2 The output of a3 terminal is Figure 7 The input of the a10 terminal is also recorded as +VB, and the TP3 pin can be used to connect with other pins according to actual conditions. In addition, the second transistor has three terminals, b6 is recorded as the first terminal of the second transistor, b7 is recorded as the second terminal of the second transistor, and b8 is recorded as the third terminal of the second transistor. Among them, before being connected to the control unit 140, the b7 terminal can be connected to a voltage-dividing resistor R12 to prevent the current in the backup electrical output module from damaging the control unit 140, wherein the second end of the second transistor will be connected to the BAT_SW pin in the backup electrical control module in the control unit 140 to realize the control of the backup electrical control module by the backup electrical control module, and then periodically output the first electrical signal. Furthermore, the third MOS tube can be the same component as the first MOS tube and the second MOS tube, which will not be repeated here.
[0060] Furthermore, the a12 end is connected to the flushing device, and the standby power output module is provided with a BAT_SW pin, which is connected to the 17 pin of the standby power control module. The standby power control module makes the BAT_SW pin of the standby power control module alternately set high and low based on the 17 pin, so that the standby power output end connected to the a12 end of the standby power output module periodically outputs a first electrical signal to the main control circuit 150, so that the main control circuit 150 receives the first electrical signal and makes subsequent power supply source judgment. In addition, the standby power output module can also be provided with a resistor R13, a resistor R14 and a capacitor C6, and the resistor R13, the resistor R14 and the capacitor C6 are all used for voltage stabilization.
[0061] In some embodiments, the battery compartment 120 includes an energy storage module and a mains power conversion module that are interconnected. The battery compartment 120 is also connected to the mains power input terminal. The mains power conversion module is used to convert the mains power supply into storable backup power, and the energy storage module is used to store the backup power in the energy storage module.
[0062] Furthermore, the battery compartment 120 can also be connected to the mains input terminal, and when the mains power comes in, the mains power is converted into storable backup power and stored in the energy storage module, so as to supply the smart toilet with power when there is a power outage. In this way, in addition to being able to supply power by placing backup batteries, the battery compartment 120 can also perform autonomous storage when a call comes in, and users do not need to frequently replace backup batteries. On the one hand, this improves the convenience of using the smart toilet, and on the other hand, it saves the cost of frequently purchasing backup batteries, saving a lot of costs.
[0063] In some embodiments, the main control circuit 150 also includes a power supply output terminal, which is connected to the flush control module. The flush control module includes a flush pin, which is connected to the power supply output terminal and is used to receive the first electrical signal or the second electrical signal.
[0064] Furthermore, the main control circuit 150 is connected to various functional modules provided in the smart toilet. For example, the smart toilet may be provided with a flushing device, and the flushing device is provided with a flushing control module and a flushing pump, such as Figure 8 As shown, Figure 8 This is an optional module schematic diagram of a flush control module provided by an embodiment of the present application, wherein the flush pin (WaterPump pin) is connected to the power supply output end, the CS pin is connected to the mains input end to obtain the mains, and is connected to the power supply output end or to the third end of the first MOS tube in the anti-reverse connection circuit to obtain the backup power from the battery compartment 120; and the flush pin is connected to a transistor, one end of the transistor is connected to a MOS tube, and the transistor and the MOS tube are used to control the on and off of the current according to the electrical signal received in the flush pin. Resistors R8, R9, R10 and R11 are used to adjust the current, and capacitor C5 is used for voltage stabilization. In addition, a diode is also provided between the MOS tube and the flush pump, which can prevent the generation of reflux current when the flush pump stops working, thereby causing adverse effects on the circuit, thereby ensuring the reliability and stability of the circuit.
[0065] Furthermore, the power supply output end can also be connected to other functional devices of the smart toilet, such as a drying device, a seat heating device, a deodorizing device, etc. The embodiments of the present application do not make specific restrictions, and these functional devices can be connected to the power supply output end to receive a first electrical signal or a second electrical signal, and enter different working modes according to the first electrical signal or the second electrical signal.
[0066] Furthermore, when the flush control module receives the first electrical signal, the flush control module can control the flush pump to enter the power saving working mode. It can be understood that the smart toilet power supply circuit can detect the mains power and backup power while supplying power to the smart toilet functional module. When it is determined that the current electrical signal is backup power, the flush pump under the power saving working module can enter a low power consumption working state. In this way, the stored backup power can be utilized to the maximum extent during a power outage, thereby saving electricity.
[0067] Further, when the flush control module receives the second electrical signal, the flush control module can control the flush pump to enter the mains working mode. It can be understood that the power consumption of the power saving working mode is lower than that of the mains working mode. In this way, the waste of backup power can be avoided, so that the backup power can be used to the maximum extent in the case of power outage. For example, the low power consumption working state in the power saving working mode can be reflected as follows: the flushing volume in the power saving working mode is less than the flushing volume in the mains working mode. The embodiment of the present application does not need to set up a detection device to judge the mains power and the backup power. The first electrical signal or the second electrical signal is received based on the circuit connection of the embodiment of the present application, wherein the first electrical signal is used to indicate that the current electrical signal comes from the backup battery, and the second electrical signal is used to indicate that the current electrical signal comes from the mains power supply. In this way, without introducing a detection device, the heating of the diode in the detection device to damage the circuit board and thus damage the smart toilet is avoided. The embodiment of the present application reduces the failure rate of the smart toilet.
[0068] In some embodiments, the embodiments of the present application also provide a smart toilet, in which the above-mentioned smart toilet power supply circuit can be arranged.
[0069] In some embodiments, the smart toilet further includes a remote control module, which is used to control the power supply circuit of the smart toilet. When the mains power supply stops and the user is not at the location where the smart toilet is placed, the remote control module can be used to remotely control the self-locking module in the power supply circuit of the smart toilet to cut off the backup power and avoid wasting the backup power. Furthermore, the remote control module can be integrated into a mobile phone application or a computer application.
[0070] It should also be understood that the various implementations provided in the embodiments of the present application can be combined arbitrarily to achieve different technical effects.
[0071] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above implementation mode. Technical personnel familiar with the field can also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.
Claims
1. A smart toilet power supply circuit, characterized in that: include: A battery box control circuit, the battery box control circuit comprises a battery power input module and a control unit connected to each other, the battery power input module comprises a power input terminal and a power output terminal, the control unit comprises a standby power output terminal, the power input terminal is used to connect to the battery compartment, the battery power input module performs voltage conversion on the electrical signal from the battery compartment and transmits the voltage to the control unit through the power output terminal, and the control unit periodically outputs a first electrical signal through the standby power output terminal; A main control circuit, the main control circuit includes a timing judgment unit, the timing judgment unit includes a power supply input terminal, the power supply input terminal includes a backup power input terminal and a mains power input terminal, the backup power input terminal is connected to the backup power output terminal to receive the first electrical signal, and the mains power input terminal is used to connect to a mains power supply to receive a second electrical signal from the mains power supply.
2. The smart toilet power supply circuit according to claim 1, characterized in that: The battery power input module is also connected to the anti-reverse connection module, and the anti-reverse connection module includes a first MOS tube and a voltage-dividing resistor. The first end of the first MOS tube is connected to the power output end, the second end of the first MOS tube is connected to the voltage-dividing resistor, and the third end of the first MOS tube is respectively connected to the control unit and the self-locking module. The first end of the voltage-dividing resistor is connected to the first MOS tube, and the second end of the voltage-dividing resistor is grounded. The self-locking module is used to control the on and off of the power supply of the battery compartment.
3. The smart toilet power supply circuit according to claim 2, characterized in that: The self-locking module includes a second MOS tube and a first transistor, the first end of the second MOS tube is connected to the first MOS tube, the second end of the second MOS tube is connected to the first transistor, the third end of the second MOS tube is connected to the voltage conversion module, the first end of the first transistor is connected to the second MOS tube, the second end of the first transistor is connected to the control unit, the third end of the first transistor is grounded, and the voltage conversion module is used to convert the voltage of the electrical signal from the battery compartment.
4. The smart toilet power supply circuit according to claim 3, characterized in that: The voltage conversion module includes a voltage conversion component, a first capacitor and a second capacitor. The first end of the voltage conversion component is connected to the first capacitor, the second end of the voltage conversion component is connected to the second capacitor, and the third end of the voltage conversion component is grounded. The first end of the first capacitor is connected to the second MOS tube, the second end of the first capacitor is connected to the voltage conversion component, the first end of the second capacitor is connected to the voltage conversion component, and the second end of the second capacitor is connected to the burning module. The burning module is used to transmit the voltage-converted electrical signal to the control unit.
5. The smart toilet power supply circuit according to claim 4, characterized in that: The first end of the programming module is connected to the second capacitor, the second end of the programming module is grounded, and the third end and the fourth end of the programming module are connected to the control unit.
6. The smart toilet power supply circuit according to claim 5, characterized in that: The control unit includes a backup power control module and a backup power output module connected to each other, the backup power control module includes a clock control pin, an input control pin, a self-locking control pin and an output control pin, the backup power output module includes a third MOS tube and a second triode, the clock control pin is connected to the second end of the burning module, the input control pin is connected to the third end of the burning module, the self-locking control pin is connected to the first triode, the first end of the third MOS tube is connected to the first MOS tube, the second end of the third MOS tube is connected to the second triode, the third end of the third MOS tube is connected to the backup power output end, the first end of the second triode is connected to the third MOS tube, the second end of the second triode is connected to the output control pin, and the third end of the second triode is grounded.
7. The smart toilet power supply circuit according to claim 1, characterized in that: The battery compartment includes an energy storage module and a mains power conversion module that are interconnected. The battery compartment is also connected to the mains power input terminal. The mains power conversion module is used to convert the mains power supply into storable backup power, and the energy storage module is used to store the backup power in the energy storage module.
8. The smart toilet power supply circuit according to claim 1, characterized in that: The main control circuit also includes a power supply output end, which is connected to the flush control module. The flush control module includes a flush pin, which is connected to the power supply output end, and the flush pin is used to receive the first electrical signal or the second electrical signal.
9. A smart toilet, characterized in that: The smart toilet comprises the smart toilet power supply circuit as described in any one of claims 1 to 8.
10. The smart toilet according to claim 9, characterized in that: The smart toilet is provided with a remote control module, and the smart toilet power supply circuit is connected to the remote control module.