Non-electric flushing module and intelligent closestool

Abstract

The utility model discloses a non-electric flushing module and an intelligent closestool, is applied to the technical field of electronics, and enables the intelligent closestool to still realize flushing and pollution discharge functions after power failure. The non-electric washing module comprises an energy storage power supply, a controllable switch and a booster circuit, the controllable switch is provided with an input end, an output end and a first control end, the input end of the controllable switch is connected to the energy storage power supply, the output end of the controllable switch is connected to the input end of the booster circuit, and the first control end is used for being connected to a manual switch of the intelligent closestool; the manual switch is a switch for a user to manually start the flushing and pollution discharge functions of the intelligent closestool; the controllable switch is used for closing when receiving a closing signal of the manual switch; the output end of the booster circuit is used for being connected to a flushing system of the intelligent closestool; the booster circuit is used for boosting the input voltage of the booster circuit into the voltage needed by the flushing system to enable the flushing system to execute flushing and pollution discharge actions.

Description

Technical Field

[0001] The utility model relates to the field of electronic technology, and more specifically, to a power-off flushing module and a smart toilet. Background Art

[0002] An ordinary toilet only has a simple flushing and sewage discharging function. On the basis of an ordinary toilet, a smart toilet has been upgraded intelligently. Under the control of a circuit board, in addition to the most basic flushing and sewage discharging function, it also has a number of special functions such as seat heating, hip washing, warm air drying, automatic deodorization, and lid opening and closing, etc., which are very comfortable, convenient and hygienic to use. However, a smart toilet has a fatal defect that once a power outage occurs, the smart toilet will not be able to work, and thus the most basic flushing and sewage discharging function cannot be realized, which greatly affects the user experience. Summary of the Utility Model

[0003] In view of this, the utility model provides a power-off flushing module and a smart toilet, so that the smart toilet can still realize the flushing and sewage discharging function after a power failure.

[0004] A power-off flushing module includes: an energy storage power supply, a controllable switch and a boost circuit;

[0005] Wherein, the controllable switch has an input end, an output end and a first control end. Its input end is connected to the energy storage power supply, its output end is connected to the input end of the boost circuit, and its first control end is used to connect to the manual switch of the smart toilet; the manual switch is a switch for a user to manually turn on the flushing and sewage discharging function of the smart toilet;

[0006] The controllable switch is used to close when receiving a signal that the manual switch is closed;

[0007] The output end of the boost circuit is used to connect to the flushing system of the smart toilet; the boost circuit is used to boost its own input voltage to the voltage required for the operation of the flushing system, so that the flushing system performs a flushing and sewage discharging action.

[0008] Optionally, the controllable switch includes: a P-type switching tube Q1, a resistor R8 and a diode D3;

[0009] Wherein, the control electrode of the P-type switching tube Q1 is connected to the anode of the diode D3;

[0010] The cathode of the diode D3 is grounded through the manual switch;

[0011] The resistor R8 is connected between the control electrode and the input electrode of the P-type switching tube Q1;

[0012] The input electrode of the P-type switching tube Q1 is the input end of the controllable switch;

[0013] The output terminal of the P-type switching transistor Q1 is the output terminal of the controllable switch;

[0014] The cathode of the diode D3 is the first control terminal of the controllable switch.

[0015] Optionally, the boost circuit further has an enable terminal, and the enable terminal is connected to the power supply line of the intelligent toilet; the boost circuit is configured to be enabled when the power supply line is powered off and disabled when the power supply line is powered on.

[0016] Optionally, the boost circuit includes: a capacitor C1, a capacitor C5, a capacitor C6, a boost chip U2, a resistor R1, a resistor R2, a resistor R6, a resistor R9, a resistor R14, an N-type switching transistor Q3, an inductor L1, a diode D1, and a diode D2;

[0017] Wherein, the first terminal of the capacitor C5 is the input terminal of the boost circuit;

[0018] One end of the resistor R2 is connected to the first terminal of the capacitor C5, the VIN pin of the boost chip U2, and one end of the inductor L1; the other end of the inductor L1 is connected to the anode of the diode D1 and the SW pin of the boost chip U2;

[0019] The other end of the resistor R2 is connected to one end of the resistor R6, the EN pin of the boost chip U2, and the input pole of the N-type switching transistor Q3;

[0020] The control pole of the N-type switching transistor Q3 is connected to one end of the resistor R14, and the other end of the resistor R14 is the enable terminal of the boost circuit;

[0021] The cathode of the diode D1 is connected to one end of the resistor R1, one end of the capacitor C1, and the anode of the diode D2;

[0022] The other end of the resistor R1 is connected to one end of the resistor R9, one end of the capacitor C6, and the FB pin of the boost chip U2;

[0023] The cathode of the diode D2 is used as the output terminal of the boost circuit;

[0024] The other end of the capacitor C5, the other end of the resistor R6, the output pole of the N-type switching transistor Q3, the other end of the capacitor C1, the other end of the resistor R9, and the other end of the capacitor C6 are grounded;

[0025] The VIN pin, SW pin, EN pin, and FB pin are respectively an input power supply pin, a power switch output pin, a switch control input enable pin, and a feedback pin.

[0026] Optionally, the energy storage power supply is a super capacitor or a storage battery.

[0027] Optionally, the manual switch is a self - reset manual switch, and the power - off flushing module further includes a timing control module;

[0028] The controllable switch further has a second control end, and both its second control end and the output end are connected to the timing control module;

[0029] The timing control module is configured to maintain the controllable switch closed for a preset time after power - on and then control the controllable switch to open.

[0030] Optionally, the timing control module includes: timer chip U3, resistor R12, resistor R13, resistor R15, N - type switching transistor Q2, capacitor C7, capacitor C8, capacitor C9, and capacitor C10;

[0031] Wherein, the TRIG pin of timer chip U3 is connected to the THRE pin of timer chip U3, one end of resistor R12, and one end of capacitor C8 through resistor R15;

[0032] The VCO pin of timer chip U3 is connected to one end of capacitor C9;

[0033] The OUT pin of timer chip U3 is connected to the control pole of N - type switching transistor Q2 through resistor R13; the input pole of N - type switching transistor Q2 is connected to the anode of diode D3, and the anode of diode D3 is the second control end of the controllable switch;

[0034] The VCC pin of timer chip U3 is connected to the other end of resistor R12, one end of capacitor C7, one end of capacitor C10, the output end of the controllable switch, and the chip power supply;

[0035] The other end of capacitor C8, the other end of capacitor C9, the other end of capacitor C7, the other end of capacitor C10, and the output pole of N - type switching transistor Q2 are grounded;

[0036] The TRIG pin, THRE pin, VCO pin, OUT pin, and VCC pin are the trigger pin, threshold voltage input pin, chip control pin, output pin, and power input pin respectively.

[0037] Optionally, the power - off flushing module further includes a charging management module; the input end of the charging management module is used to connect to the power cord of the intelligent toilet, and its output end is connected to the energy storage power supply;

[0038] The charging management module is configured to charge the energy storage power supply when the intelligent toilet is powered on and the remaining power of the energy storage power supply is lower than a preset value.

[0039] Optionally, the charging management module includes: charging management chip U1, resistor R3, resistor R4, resistor R5, resistor R7, resistor R10, capacitor C3, and capacitor C4;

[0040] Among them, the IN pin of the charging management chip U1 is connected to one end of the capacitor C3, which is the input end of the charging management module;

[0041] The ISET pin of the charging management chip U1 is grounded through the resistor R4;

[0042] The STAT pin of the charging management chip U1 is connected to one end of the resistor R7, one end of the resistor R3, one end of the capacitor C4, and the OUT pin of the charging management chip U1 through the resistor R10; the OUT pin of the charging management chip U1 is the output end of the charging management module;

[0043] The other end of the resistor R3 is connected to the FB pin of the charging management chip U1 and one end of the resistor R5; the other end of the resistor R7 is connected to the pin of the charging management chip U1;

[0044] The other end of the capacitor C3, the other end of the capacitor C4, the other end of the resistor R5, and the pin of the charging management chip U1 are grounded;

[0045] The IN pin, ISET pin, STAT pin, OUT pin, FB pin, pin, pin are respectively: input power pin, current limit pin, pin for charging status indication, output pin, feedback pin, battery power detection pin, and charging enable pin.

[0046] An intelligent toilet includes: any one of the above-mentioned non-electric flushing modules.

[0047] As can be seen from the above technical solutions, after the non-electric flushing module provided by the present invention is connected to the intelligent toilet, when the user closes the manual switch of the intelligent toilet, the controllable switch can receive the signal of the closed manual switch, that is, the flushing and sewage discharge instruction, and the controllable switch will immediately close, so that the energy storage power supply is connected to the input end of the boost circuit. Then, the boost circuit boosts the input voltage to the voltage required for the flushing system to work, enabling the flushing system to perform the flushing and sewage discharge action, thus solving the problem that the intelligent toilet cannot perform flushing and sewage discharge after power failure. On the other hand, the non-electric flushing module provided by the present invention has a simple circuit structure and low cost. In the power-off state of the intelligent toilet, only when the user operates the flushing manual switch, the circuit connection of the energy storage power supply is connected. Therefore, its overall power consumption is low in the power-off state of the intelligent toilet. Description of the Drawings

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0049] Figure 1 It is a system block diagram of a power-off flushing module disclosed in an embodiment of the present invention;

[0050] Figure 2 It is another system block diagram of a power-off flushing module disclosed in an embodiment of the present invention;

[0051] Figure 3 It is another system block diagram of a power-off flushing module disclosed in an embodiment of the present invention;

[0052] Figure 4 It is another system block diagram of a power-off flushing module disclosed in an embodiment of the present invention;

[0053] Figure 5 It is a circuit schematic diagram of a power-off flushing module disclosed in an embodiment of the present invention. Detailed implementation manners

[0054] For the sake of citation and clarity, the following summarizes the technical terms, abbreviations or acronyms used hereinafter:

[0055] APP: Application, application software;

[0056] MOSFET: Metal-Oxide-Semiconductor Field-Effect Transistor, metal oxide semiconductor field effect transistor, abbreviated as MOS transistor;

[0057] PMOS transistor: P-type MOSFET;

[0058] NMOS transistor: N-type MOSFET;

[0059] MCU: Microcontroller Unit, microcontroller unit;

[0060] PNP-type triode: A triode composed of two pieces of P-type semiconductor with one piece of N-type semiconductor sandwiched in the middle;

[0061] NPN-type triode: A triode composed of two pieces of N-type semiconductor with one piece of P-type semiconductor sandwiched in the middle.

[0062] The flushing system of the toilet is used to realize the flushing and sewage discharge function after the user uses the toilet. The flushing and sewage discharge function of an ordinary toilet is realized by a mechanical push rod under the manual pressing of the user and can be used without power supply. With the development of technology, intelligent toilets have gradually entered the public eye. The intelligent toilet has been upgraded intelligently on the basis of the ordinary toilet. Under the control of the circuit board, in addition to the most basic flushing and sewage discharge function, it also has a number of special functions such as seat ring heating, hip washing, warm air drying, automatic deodorization, toilet lid opening and closing. Users can activate the corresponding functions by operating the control panel or remote control of the intelligent toilet, or even using the mobile APP software, etc. Compared with ordinary toilets, the intelligent toilet with rich functions is very comfortable, convenient and hygienic to use.

[0063] Since all functions of the intelligent toilet (including the flushing and sewage discharge function) are realized by electronic control, it must be powered on for use. For an intelligent toilet without a mechanical push rod, that is, an intelligent toilet without a mechanical flushing button, once a power outage occurs, the intelligent toilet will not be able to work. For example, the flushing and sewage discharge function of the intelligent toilet is realized by an electronically controlled electric flushing system (such as a motor flushing system or a solenoid valve flushing system). Once a power outage occurs, the intelligent toilet will not be able to flush and discharge sewage. However, the flushing and sewage discharge function is the most basic function of the toilet. The inability to flush and discharge sewage after a power outage has become a fatal defect of the intelligent toilet, greatly restricting the popularization and application of the intelligent toilet.

[0064] In order to enable the intelligent toilet to still realize the flushing and sewage discharge function after a power outage, the embodiment of the present utility model discloses a power-off flushing module. This power-off flushing module can be directly installed inside the intelligent toilet and connected to the existing circuit board of the intelligent toilet for use, without affecting the reliability of the whole intelligent toilet and also without affecting the appearance of the intelligent toilet. This power-off flushing module is an independent functional module. Users can connect this power-off flushing module into the intelligent toilet when it is needed after a power outage or when there is no power outage, and can remove this power-off flushing module from the intelligent toilet when it is not needed after a power outage or when the power comes back. It is very convenient to use.

[0065] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0066] See Figure 1 , a power-off flushing module disclosed in the embodiment of the present utility model specifically includes: an energy storage power supply 2, a controllable switch 3 and a boost circuit 5;

[0067] Among them, the controllable switch 3 has an input terminal, an output terminal, and a first control terminal. Its input terminal is connected to the energy storage power supply 2, its output terminal is connected to the input terminal of the boost circuit 5, and its first control terminal is used to connect to the manual switch of the intelligent toilet; the manual switch is a manually controlled switch, which is controlled by a person with hands or other tools and plays a role of opening or closing the circuit in the circuit. In Figure 1 In the shown solution, the manual switch is a switch for the user to manually turn on the flushing and sewage discharging function of the intelligent toilet;

[0068] The controllable switch 3 is used to close when receiving the signal of the closing of the manual switch (i.e., the flushing and sewage discharging instruction);

[0069] The output terminal of the boost circuit 5 is used to connect to the flushing system of the intelligent toilet; the boost circuit 5 is used to boost its input voltage to the voltage required for the operation of the flushing system, so that the flushing system performs the flushing and sewage discharging action.

[0070] In summary, in Figure 1 In the shown solution, after the power-off flushing module is connected to the intelligent toilet, when the user closes the manual switch of the intelligent toilet, the controllable switch 3 can receive the signal of the closing of the manual switch, that is, the flushing and sewage discharging instruction, and the controllable switch 3 then closes, so that the energy storage power supply 3 is connected to the input terminal of the boost circuit 5, and then the boost circuit 5 boosts the input voltage to the voltage required for the operation of the flushing system, enabling the flushing system to perform the flushing and sewage discharging action, thus solving the problem that the intelligent toilet cannot perform flushing and sewage discharging after power-off. On the other hand, Figure 1 The power-off flushing module provided by the shown solution has a simple circuit structure and low cost. In the power-off state of the intelligent toilet, only when the user operates the flushing manual switch, the circuit connection of the energy storage power supply is turned on, so its overall power consumption is low in the power-off state of the intelligent toilet.

[0071] The energy storage power supply 2 is used as a backup power supply for the flushing and sewage discharging function of the intelligent toilet. In the case of power-off of the intelligent toilet, several flushing and sewage discharging functions can be realized by gently touching the manual switch, and the number of times of flushing and sewage discharging depends on the electric energy stored in the energy storage power supply 2 and the power consumption of the entire power-off flushing module.

[0072] Optionally, based on any of the above-disclosed embodiments, the energy storage power supply 2 is a rechargeable power supply. A rechargeable power supply refers to a power supply that can be charged by an external power supply after the power supply is discharged, so that it can restore electric energy and be reused. In the embodiments of the present invention, the rechargeable power supply can be, for example, a supercapacitor or a storage battery, etc., without limitation.

[0073] The storage battery is also called a secondary battery. The storage battery adopted in the embodiments of the present invention is, for example, a lithium battery. The lithium battery has the advantages of high energy density, light weight, low self-discharge rate, fast charging and high discharge rate, and long service life.

[0074] A supercapacitor is a new type of energy storage component with performance between that of a conventional capacitor and a secondary battery. Compared with a capacitor in the traditional sense, a supercapacitor has a higher specific capacitance and energy density. Compared with a secondary battery, it has the characteristics of high power density, short charge and discharge time, good cycle performance, long service life, and easy maintenance.

[0075] Optionally, based on any of the above-disclosed embodiments, refer to Figure 2 , the boost circuit 5 further has an enable terminal (the enable terminal is a control signal input terminal, also called an enable input terminal or chip select terminal. Only when the enable terminal is activated, that is, when the boost circuit 5 obtains an enable, can the boost circuit 5 work). The enable terminal of the boost circuit 5 is used to connect to the power supply line of the intelligent toilet; the boost circuit 5 is configured to obtain an enable when the power supply line is powered off. After the boost circuit 5 is powered on and obtains an enable, it can boost its input voltage to the voltage required for the flushing system to work, enabling the flushing system to perform the flushing and sewage discharge action; when the intelligent toilet is powered on again, the boost circuit 5 loses the enable and immediately stops working and enters the standby state to avoid consuming the power of the energy storage power supply 2.

[0076] In addition, it should be noted that the above power supply line does not refer to the power supply connection line between the intelligent toilet and the external power socket, but refers to the power supply interface line led out from the power module of the intelligent toilet. The voltage of this power supply line can be adjusted by the power module of the intelligent toilet according to actual needs.

[0077] Optionally, based on any of the above-disclosed embodiments, the manual switch is, for example, a self-resetting manual switch. After the user presses the self-resetting manual switch, the self-resetting manual switch enters the closed state; when the user releases the hand, the self-resetting manual switch returns to the open state, and the controllable switch 3 immediately disconnects, and the boost circuit 5 loses power and stops working. Therefore, after the intelligent toilet loses power, the duration of each flushing and sewage discharge depends on the duration that the user continuously holds down the self-resetting manual switch.

[0078] Optionally, based on the previous embodiment, refer to Figure 3 , the power-off flushing module further includes a timing control module 4; the controllable switch 3 further has a second control end, and its second control end and output end are both connected to the timing control module 4; the timing control module 4 is used to maintain the controllable switch 3 closed for a preset time after being powered on and then control the controllable switch 3 to disconnect, so as to control the duration of each flushing and sewage discharge after the intelligent toilet loses power (the preset time is the duration that the controllable switch 3 maintains closed after each sewage discharge flushing instruction is issued after the intelligent toilet loses power, that is, the working duration of the boost circuit 5, that is, the duration of flushing and sewage discharge), so that the user does not need to continuously hold down the self-resetting manual switch to manually control the duration that the controllable switch 3 maintains closed.

[0079] Among them, the timing control circuit 4 can be a timer circuit or an MCU storing a corresponding timing control program, without limitation.

[0080] Optionally, based on any of the above-disclosed embodiments, refer to Figure 4 , when the energy storage power supply 2 is a rechargeable power supply, the power-off flushing module further includes: a charging management module 1; the input end of the charging management module 1 is used to connect to the power cord of the intelligent toilet, and its output end is connected to the energy storage power supply 2; the charging management module 1 is used to charge the energy storage power supply 2 when the intelligent toilet is powered on and the remaining power of the energy storage power supply 2 is lower than a preset value, and the charging management module 1 resumes the standby state after the charging ends. Thus, as long as the user connects the power-off flushing module into the intelligent toilet when the intelligent toilet is powered on, the energy storage power supply 2 of the power-off flushing module can be automatically charged, ensuring the normal use of the power-off flushing module after a power outage.

[0081] Optionally, based on any of the above-disclosed embodiments, refer to Figure 5 , the controllable switch 3 includes: a P-type switch tube Q1 (the P-type switch tube can be a PMOS tube or a PNP-type triode; Figure 5 only taking the P-type switch tube Q1 as a PMOS tube as an example here, at this time, the input pole of the P-type switch tube Q1 is the source S of the PMOS tube, the output pole of the P-type switch tube Q1 is the drain D of the PMOS tube, and the control pole of the P-type switch tube Q1 is the gate G of the PMOS tube), a resistor R8, and a diode D3;

[0082] Among them, the control pole of the P-type switch tube Q1 is connected to the anode of the diode D3;

[0083] the cathode of the diode D3 is grounded through the above-mentioned manual switch;

[0084] the resistor R8 is connected between the control pole and the input pole of the P-type switch tube Q1;

[0085] the input pole of the P-type switch tube Q1 is the input end of the controllable switch 3;

[0086] the output pole of the P-type switch tube Q1 is the output end of the controllable switch 3;

[0087] the cathode of the diode D3 is the first control end of the controllable switch 3.

[0088] Next, the working principle of the controllable switch 3 shown in Figure 5 will be described in detail: Figure 5Integrate the wiring terminals of the manual switch in an interface circuit CN1. Pin 1 of the interface circuit CN1 is connected to one end of the manual switch, and pin 2 of the interface circuit CN1 is connected between the other end of the manual switch and the ground. When the user presses the manual switch, pin 1 and pin 2 of the interface circuit CN1 are connected, and the control voltage of the P-type switch tube Q1 is pulled down, so that the P-type switch tube Q1 is turned on. If there is no timing control module 4 connected, when the user releases the hand, pin 1 and pin 2 of the interface circuit CN1 are no longer connected, and the P-type switch tube Q1 is turned off. The diode D3 is used to prevent the energy from flowing back from the original circuit board of the intelligent toilet into the non-powered flushing module when the intelligent toilet is powered on, causing damage to the internal components of the non-powered flushing module. The resistor R8 plays an important role in the P-type switch tube Q1, such as current limiting and providing bias, etc. When the P-type switch tube Q1 is a PMOS tube, the functions of the resistor R8 mainly include: current limiting, controlling the charging and discharging speed of the gate, preventing gate oscillation, adjusting the threshold voltage, providing bias, and protecting the PMOS tube, etc.

[0089] Optionally, based on any of the above disclosed embodiments, still referring to Figure 5 , the boost circuit 5 includes: capacitor C1, capacitor C5, capacitor C6, boost chip U2, resistor R1, resistor R2, resistor R6, resistor R9, resistor R14, N-type switch tube Q3 (the N-type switch tube can be an NMOS tube or an NPN-type triode; Figure 5 only taking the N-type switch tube Q3 as an NPN-type triode as an example. At this time, the input pole of the N-type switch tube Q3 is the collector C of the NPN-type triode, the output pole of the N-type switch tube Q3 is the emitter E of the NPN-type triode, and the control pole of the N-type switch tube Q3 is the base B of the NPN-type triode), inductor L1, diode D1 and diode D2.

[0090] Among them, the boost chip U2 can directly use an existing chip. The meanings of the pins of the boost chip U2 are as follows:

[0091] Pin 1: SW, power switch output pin;

[0092] Pin 2: GND, ground pin;

[0093] Pin 3: FB, feedback pin;

[0094] Pin 4: EN, switch control input enable pin;

[0095] Pin 5: VIN / NC, empty pin, can be connected to the VIN pin;

[0096] Pin 6: VIN, input power pin.

[0097] The connection relationships of the internal components of the boost circuit 5 are as follows:

[0098] The first terminal of the capacitor C5 is the input terminal of the boost circuit 5;

[0099] One end of the resistor R2 is connected to the first terminal of the capacitor C5, the VIN pin of the boost chip U2, and one end of the inductor L1; the other end of the inductor L1 is connected to the anode of the diode D1 and the SW pin of the boost chip U2;

[0100] The other end of the resistor R2 is connected to one end of the resistor R6, the EN pin of the boost chip U2, and the input pole of the N-type switch tube Q3;

[0101] The control pole of the N-type switch tube Q3 is connected to the above-mentioned power supply line ( Figure 5 only taking the power supply line voltage of +12V as an example); the end of the resistor R14 connected to the above-mentioned power supply line is the enable terminal of the boost circuit;

[0102] The cathode of the diode D1 is connected to one end of the resistor R1, one end of the capacitor C1, and the anode of the diode D2;

[0103] The other end of the resistor R1 is connected to one end of the resistor R9, one end of the capacitor C6, and the FB pin of the boost chip U2;

[0104] The cathode of the diode D2 is the output terminal Vflush of the boost circuit 5; the power supply line interface and the output terminal Vflush of the boost circuit 5 can also be integrated in the interface circuit CN1, which are the pin 3 and pin 4 of the interface circuit CN1 respectively;

[0105] The other end of the capacitor C5, the other end of the resistor R6, the output pole of the N-type switch tube Q3, the other end of the capacitor C1, the other end of the resistor R9, and the other end of the capacitor C6 are grounded.

[0106] Figure 5 In [description], the energy storage power supply 2 uses the super capacitor CP1 as an example; one end of the super capacitor CP1 is connected to the input terminal of the controllable switch 3, and the other end is grounded.

[0107] Next, for Figure 5The working principle of the boost circuit 5 shown above is described in detail as follows: When the intelligent toilet is powered on, the control electrode of the N-type switching transistor Q3 obtains a high level, and the N-type switching transistor Q3 conducts. The EN pin of the boost chip U2 is pulled low, and the boost chip U2 is not enabled. Therefore, the entire boost circuit 5 does not work. When the intelligent toilet loses power, the control electrode of the N-type switching transistor Q3 obtains a low level, and the N-type switching transistor Q3 is cut off. At this time, if the controllable switch 3 conducts, the EN pin of the boost chip U2 is pulled high, the boost chip U2 is enabled, and the boost circuit 5 starts to work, converting the input voltage into an output voltage equal to k1*(R9 + R10) / R9, where k1 is a coefficient. The resistor R2 and the resistor R6 are a pair of voltage-dividing resistors; the resistor R1 and the resistor R9 are a pair of voltage-dividing resistors. The diode D2 is used to prevent energy backflow. The capacitors C1, C5, and C6 mainly play a filtering role.

[0108] Optionally, the boost circuit 5 further includes a capacitor C2, which is connected in parallel with the capacitor C1 and is used to cooperate with the capacitor C2 to achieve secondary filtering.

[0109] Optionally, in any of the above disclosed embodiments including the timing control module 4, still referring to Figure 5 , when the timing control module 4 is a timer circuit, the timing control module 4 may include: a timer chip U3, resistors R12, R13, R15, an N-type switching transistor Q2 ( Figure 5 only taking the N-type switching transistor Q2 as an NPN triode as an example), capacitors C7, C8, C9, and C10.

[0110] Among them, the timer chip U3 can directly adopt an existing chip. The meanings of the pins of the timer chip U3 are as follows:

[0111] 1: GND, ground pin;

[0112] 2: TRIG, trigger pin;

[0113] 3: OUT, output pin;

[0114] 4: RES, reset pin;

[0115] 5: VCO, chip control pin; If an external voltage is applied to this pin, the reference voltage of the internal comparator can be changed. When this pin is not used, this pin should be connected in series with a capacitor to ground to prevent the introduction of high-frequency interference;

[0116] 6: THRE, threshold voltage input pin;

[0117] 7: DISC, discharge pin;

[0118] 8: VCC, power input pin.

[0119] Among them, the connection relationships of the components inside the timing control module 4 are as follows:

[0120] The TRIG pin of the timer chip U3 is connected to the THRE pin of the timer chip U3, one end of the resistor R12, and one end of the capacitor C8 through the resistor R15;

[0121] The VCO pin of the timer chip U3 is connected to one end of the capacitor C9;

[0122] The OUT pin of the timer chip U3 is connected to the control electrode of the N-type switching transistor Q2 through the resistor R13; the input electrode of the N-type switching transistor Q2 is connected to the second control end of the controllable switch 3, that is, the anode of the diode D3;

[0123] The VCC pin of the timer chip U3 is connected to the other end of the resistor R12, one end of the capacitor C7, one end of the capacitor C10, the output end of the controllable switch 3, and the chip power supply (such as +5V);

[0124] The other end of the capacitor C8, the other end of the capacitor C9, the other end of the capacitor C7, the other end of the capacitor C10, and the output electrode of the N-type switching transistor Q2 are grounded.

[0125] Next, Figure 5 the working principle of the shown timing control module 4 will be described in detail: When the intelligent toilet loses power and the controllable switch 3 is closed, after the VCC pin of the timer chip U3 obtains the output voltage of the controllable switch 3, at this time, the OUT pin of the timer chip U3 outputs a high level, the N-type switching transistor Q2 conducts, and the controllable switch 3 remains closed. When the timing time reaches, the OUT pin of the timer chip U3 outputs a low level, the N-type switching transistor Q2 cuts off, and the controllable switch 3 disconnects. This timing time is determined by the parameter values of the resistor R12 and the capacitor C8.

[0126] Optionally, in any of the above-disclosed embodiments including the charging management module 1, still referring to Figure 5 , the charging management module 1 may include: a charging management chip U1, a resistor R3, a resistor R4, a resistor R5, a resistor R7, a resistor R10, a capacitor C3, and a capacitor C4.

[0127] Among them, the charging management chip U1 can directly adopt an existing chip. The meanings of the pins of the charging management chip U1 are as follows:

[0128] 1: IN, input power pin;

[0129] 2: ISET, current limit pin;

[0130] 3: CE, charging enable pin;

[0131] 4: GND, ground pin;

[0132] 5: STAT, the pin for charging status indication;

[0133] 6: PG, the battery power detection pin;

[0134] 7: FB, the feedback pin;

[0135] 8: OUT, the output pin.

[0136] The connection relationships of the components inside the charging management module 1 are as follows:

[0137] The IN pin of the charging management chip U1 is connected to one end of the capacitor C3, which is the input end of the charging management module 1; the ISET pin of the charging management chip U1 is grounded through the resistor R4; the STAT pin of the charging management chip U1 is connected to one end of the resistor R7, one end of the resistor R3, one end of the capacitor C4, and the OUT pin of the charging management chip U1 through the resistor R10; the OUT pin of the charging management chip U1 is the output end of the charging management module 1; the other end of the resistor R3 is connected to the FB pin of the charging management chip U1 and one end of the resistor R5; the other end of the resistor R7 is connected to the PG pin of the charging management chip U1;

[0138] The other end of the capacitor C3, the other end of the capacitor C4, the other end of the resistor R5, and the CE of the charging management chip U1 are grounded.

[0139] The working principle of the charging management module 1 is as follows: When there is power on the power line, the OUT pin of the charging management chip U1 outputs voltage to charge the energy storage power supply 2. When the PG pin detects that the energy storage power supply 2 is fully charged, the charging management chip U1 stops working.

[0140] In addition, the embodiment of the present utility model also discloses an intelligent toilet, which includes any one of the non-electric flushing modules disclosed above.

[0141] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the intelligent toilet disclosed in the embodiment, since it includes all the technical features of the non-electric flushing module, the description is relatively simple. For the relevant parts, refer to the description of the non-electric flushing module part.

[0142] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the embodiments of the present utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A non-electric flushing module, characterized in that: include: Energy storage power supply, controllable switch and boost circuit; The controllable switch has an input end, an output end and a first control end, the input end of which is connected to the energy storage power supply, the output end of which is connected to the input end of the boost circuit, and the first control end of which is used to connect to the manual switch of the smart toilet; the manual switch is a switch for the user to manually turn on the flushing and sewage discharge function of the smart toilet; The controllable switch is used to close upon receiving a signal indicating that the manual switch is closed; The output end of the boost circuit is used to connect to the flushing system of the smart toilet; The boost circuit is used to boost its own input voltage to the voltage required for the flushing system to work, so that the flushing system can perform flushing and sewage discharge actions.

2. The non-electric flushing module according to claim 1, characterized in that: The controllable switch includes: a P-type switch tube Q1, a resistor R8 and a diode D3; Wherein, the control electrode of the P-type switch tube Q1 is connected to the anode of the diode D3; The cathode of the diode D3 is grounded via the manual switch; The resistor R8 is connected between the control electrode and the input electrode of the P-type switch tube Q1; The input terminal of the P-type switch tube Q1 is the input terminal of the controllable switch; The output terminal of the P-type switch tube Q1 is the output terminal of the controllable switch; The cathode of the diode D3 is the first control terminal of the controllable switch.

3. The non-electric flushing module according to claim 1, characterized in that: The boost circuit also has an enable end, which is connected to the power line of the smart toilet; the boost circuit is configured to obtain enablement when the power line has no power, and lose enablement when the power line has power.

4. The non-electric flushing module according to claim 3, characterized in that: The boost circuit includes: capacitor C1, capacitor C5, capacitor C6, boost chip U2, resistor R1, resistor R2, resistor R6, resistor R9, resistor R14, N-type switch tube Q3, inductor L1, diode D1 and diode D2; Wherein, the first end of the capacitor C5 is the input end of the boost circuit; One end of the resistor R2 is connected to the first end of the capacitor C5, the VIN pin of the boost chip U2 and one end of the inductor L1; the other end of the inductor L1 is connected to the anode of the diode D1 and the SW pin of the boost chip U2; The other end of the resistor R2 is connected to one end of the resistor R6, the EN pin of the boost chip U2 and the input terminal of the N-type switch tube Q3; The control electrode of the N-type switch tube Q3 is connected to one end of the resistor R14, and the other end of the resistor R14 is the enable end of the boost circuit; The cathode of the diode D1 is connected to one end of the resistor R1, one end of the capacitor C1 and the anode of the diode D2; The other end of the resistor R1 is connected to one end of the resistor R9, one end of the capacitor C6 and the FB pin of the boost chip U2; The cathode of diode D2 serves as the output terminal of the boost circuit; The other end of the capacitor C5, the other end of the resistor R6, the output electrode of the N-type switch tube Q3, the other end of the capacitor C1, the other end of the resistor R9 and the other end of the capacitor C6 are grounded; The VIN pin, SW pin, EN pin, and FB pin are respectively an input power pin, a power switch output pin, a switch control input enable pin, and a feedback pin.

5. The non-electric flushing module according to any one of claims 1 to 4, characterized in that: The energy storage power source is a super capacitor or a battery.

6. The non-electric flushing module according to any one of claims 1 to 4, characterized in that: The manual switch is a self-resetting manual switch, and the non-electric flushing module also includes a timing control module; The controllable switch also has a second control terminal, and the second control terminal and the output terminal thereof are both connected to the timing control module; The timing control module is used to maintain the controllable switch closed for a preset time and then control the controllable switch to open after power-on.

7. The non-electric flushing module according to claim 6, characterized in that: The timing control module includes: a timer chip U3, a resistor R12, a resistor R13, a resistor R15, an N-type switch tube Q2, a capacitor C7, a capacitor C8, a capacitor C9 and a capacitor C10; The TRIG pin of the timer chip U3 is connected to the THRE pin of the timer chip U3, one end of the resistor R12 and one end of the capacitor C8 via the resistor R15; The VCO pin of the timer chip U3 is connected to one end of the capacitor C9; The OUT pin of the timer chip U3 is connected to the control electrode of the N-type switch tube Q2 via the resistor R13; the input electrode of the N-type switch tube Q2 is connected to the anode of the diode D3, and the anode of the diode D3 is the second control terminal of the controllable switch; The VCC pin of the timer chip U3 is connected to the other end of the resistor R12, one end of the capacitor C7, one end of the capacitor C10, the output end of the controllable switch and the chip power supply; The other end of the capacitor C8, the other end of the capacitor C9, the other end of the capacitor C7, the other end of the capacitor C10 and the output electrode of the N-type switch tube Q2 are grounded; The TRIG pin, THRE pin, VCO pin, OUT pin and VCC pin are respectively a trigger pin, a threshold voltage input pin, a chip control pin, an output pin and a power input pin.

8. The non-electric flushing module according to any one of claims 1 to 4, characterized in that: The non-electric flushing module also includes a charging management module; the input end of the charging management module is used to connect the power line of the smart toilet, and the output end thereof is connected to the energy storage power supply; The charging management module is used to charge the energy storage power supply when the smart toilet has power and the remaining power of the energy storage power supply is lower than a preset value.

9. The non-electric flushing module according to claim 8, characterized in that: The charging management module includes: a charging management chip U1, a resistor R3, a resistor R4, a resistor R5, a resistor R7, a resistor R10, a capacitor C3 and a capacitor C4; Among them, the IN pin of the charging management chip U1 is connected to one end of the capacitor C3, which is the input end of the charging management module; The ISET pin of the charging management chip U1 is grounded via resistor R4; The STAT pin of the charging management chip U1 is connected to one end of the resistor R7, one end of the resistor R3, one end of the capacitor C4 and the OUT pin of the charging management chip U1 through the resistor R10; the OUT pin of the charging management chip U1 is the output end of the charging management module; The other end of resistor R3 is connected to the FB pin of the charging management chip U1 and one end of resistor R5; the other end of resistor R7 is connected to the Pins; The other end of capacitor C3, the other end of capacitor C4 and the other end of resistor R5, the charging management chip U1 Pin is grounded; The IN pin, ISET pin, STAT pin, OUT pin, FB pin, Pins, The pins are: input power pin, current limit pin, charging status indication pin, output pin, feedback pin, battery charge detection pin and charging enable pin.

10. A smart toilet, characterized in that: include: The non-electric flushing module according to any one of claims 1 to 9.

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