Automatic induction flushing closestool circuit based on water energy self-power generation

Abstract

The utility model discloses an automatic induction flushing closestool circuit based on water energy self-power generation, which belongs to the technical field of bathroom accessories and comprises a hydroelectric generator, an automatic flushing inductor, a battery BAT1, an MCU (Microprogrammed Control Unit) and a boosting module U2, the output end of the hydroelectric generator is electrically connected with the positive electrode of the battery BAT1, the negative electrode of the battery BAT1 is grounded, the positive electrode of the battery BAT1 is electrically connected with the power input end of the MCU and the input end VIN of the boosting module, the enabling output end of the MCU is electrically connected with the enabling input end EN of the boosting module, and the enabling output end of the MCU is electrically connected with the enabling input end EN of the boosting module. And the output end LX of the boosting module is electrically connected with the automatic flushing sensor. The automatic induction flushing closestool circuit based on water energy self-power generation solves the problem that an existing closestool automatic induction flushing system affects the use experience of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary ware, in particular to an automatic induction flushing toilet circuit based on water energy self-generation. Background Art

[0002] The power supply system of the existing automatic flushing toilet sensor system generally uses a battery pack consisting of four 1.5V dry batteries connected in series to output DC6V to the sensor controller, or uses an AC220V to DC6V switching power supply.

[0003] The battery pack, comprised of four 1.5V dry-cell batteries connected in series, consumes power as the flush system is used, and the battery pack voltage gradually decreases until it is depleted. This drop in battery voltage reduces the flush system's motor drive force, resulting in poor flushing performance or even inability to flush. This requires manual battery replacement, which is cumbersome and costly. The system utilizes an AC220V to DC6V switching power supply, requiring the installation of an AC220V power cord for each automatic sensor flush system. This requires high construction requirements and costs, and improper installation can easily lead to leakage and the risk of electric shock.

[0004] Therefore, whether using a battery pack with four 1.5V dry batteries connected in series or a switching power supply that converts AC220V to DC6V, there are situations that affect the user experience. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides an automatic induction flushing toilet circuit based on water self-generation to solve the problem of affecting the user experience.

[0006] The technical solution adopted by the utility model to solve the technical problem is: an automatic induction flush toilet circuit based on water self-generation, including a hydroelectric generator, an automatic flush sensor, a battery BAT1, an MCU and a boost module U2;

[0007] The output end of the hydroelectric generator is electrically connected to the positive electrode of the battery BAT1, the negative electrode of the battery BAT1 is grounded, the positive electrode of the battery BAT1 is electrically connected to the power input end of the MCU and the input end VIN of the boost module respectively, the enable output end of the MCU is electrically connected to the enable input end EN of the boost module, and the output end LX of the boost module is electrically connected to the automatic flush sensor.

[0008] Preferably, the water outlet of the hydroelectric generator is communicated with the water inlet of the toilet flush tank, and the water inlet of the hydroelectric generator is communicated with the water outlet of the tap water pipe.

[0009] Optionally, the boost module U2 is a DC-DC boost chip, the input terminal VIN of the boost module U2 is electrically connected to the positive electrode of the battery BAT1 through a filter capacitor, and the output terminal LX of the boost module U2 is electrically connected to the automatic flush sensor through a filter capacitor;

[0010] The enable output terminal of the MCU and the positive electrode of the battery BAT1 are both electrically connected to the enable input terminal EN of the boost module U2.

[0011] It is worth noting that it also includes an LDO low voltage difference voltage regulator chip U1. The positive electrode of the battery BAT1 is electrically connected to the input end of the LDO low voltage difference voltage regulator chip U1, and the output end of the LDO low voltage difference voltage regulator chip U1 is electrically connected to the power input end of the MCU.

[0012] Specifically, it also includes a ceramic capacitor C1, a TVS diode TVS1 and a diode D1. The output end of the hydroelectric generator is electrically connected to the positive electrode of the ceramic capacitor C1, the negative electrode of the TVS diode TVS1 and the positive electrode of the diode D1, respectively. The positive electrode of the ceramic capacitor C1 is grounded, the positive electrode of the TVS diode TVS1 is grounded, and the negative electrode of the diode D1 is electrically connected to the positive electrode of the battery BAT1.

[0013] Preferably, a battery protection chip U4 is further included, wherein the power input terminal VDD of the battery protection chip U4 is electrically connected to the positive electrode of the battery BAT1, the port GND of the battery protection chip U4 is electrically connected to the negative electrode of the battery BAT1, and the port VM of the battery protection chip U4 is grounded.

[0014] The beneficial effect of the present utility model is that in the automatic induction flushing toilet circuit based on water energy self-generation, a hydroelectric generator is set to utilize the tap water flowing through the hydroelectric generator to generate electricity, and at the same time power the automatic flushing sensor and the MCU, thereby realizing self-charging, energy storage and power supply of the automatic induction flushing system of the toilet, eliminating the need for dry cell battery packs and AC220V wiring, and simplifying construction, eliminating the need for subsequent manual battery replacement and maintenance, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a system block diagram of an automatic induction flush toilet circuit based on water self-generation in one embodiment of the present utility model;

[0016] Figure 2 A circuit diagram of a corresponding circuit for a hydroelectric generator to charge a battery BAT1 in one embodiment of the present invention;

[0017] Figure 3 A circuit diagram of a corresponding circuit of an MCU in one embodiment of the present utility model;

[0018] Figure 4 1 is a circuit diagram of a corresponding circuit of a boost module in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0020] like Figure 1-4 As shown, an automatic induction flush toilet circuit based on water self-generation includes a hydroelectric generator, an automatic flush sensor, a battery BAT1, an MCU and a boost module U2;

[0021] The output end of the hydroelectric generator is electrically connected to the positive electrode of the battery BAT1, the negative electrode of the battery BAT1 is grounded, the positive electrode of the battery BAT1 is electrically connected to the power input end of the MCU and the input end VIN of the boost module respectively, the enable output end of the MCU is electrically connected to the enable input end EN of the boost module, and the output end LX of the boost module is electrically connected to the automatic flush sensor.

[0022] In the automatic induction flush toilet circuit based on water power generation, a hydroelectric generator is set up to utilize the tap water flowing through the hydroelectric generator to generate electricity, and at the same time power the automatic flush sensor and MCU, thereby realizing self-charging, energy storage and power supply of the automatic induction flushing system of the toilet. It does not require dry battery packs or AC220V wiring, is simple to construct, and does not require subsequent manual battery replacement and maintenance, thereby improving the user experience.

[0023] It's worth noting that the water outlet of the hydroelectric generator is connected to the water inlet of the toilet flush tank, which in turn is connected to the water outlet of the tap water pipe. Thus, when tap water flows into the toilet flush tank, it drives the hydroelectric generator, generating electricity, which is then stored in battery BAT1. In this embodiment, battery BAT1 is an 18650 lithium battery with a nominal voltage of 3.7V and a fully charged voltage of 4.2V.

[0024] Optionally, the boost module U2 is a DC-DC boost chip, the input terminal VIN of the boost module U2 is electrically connected to the positive electrode of the battery BAT1 through a filter capacitor, and the output terminal LX of the boost module U2 is electrically connected to the automatic flush sensor through a filter capacitor; the model of the boost module U2 is MT3608B; Figure 4As shown, the input terminal VIN of the boost module U2 is electrically connected to the first end of the filter capacitor C8, the first end of the filter capacitor C9 and the positive electrode of the battery BAT1, respectively, and the second end of the filter capacitor C8 and the second end of the filter capacitor C9 are both grounded to achieve the purpose of filtering; the output terminal LX of the boost module U2 is electrically connected to the first end of the filter capacitor C5, the first end of the filter capacitor C6, the first end of the filter capacitor C7 and the automatic flush sensor, respectively, and the second end of the filter capacitor C5, the second end of the filter capacitor C6 and the second end of the filter capacitor C7 are all grounded to achieve the purpose of filtering;

[0025] The enable output of the MCU and the positive electrode of the battery BAT1 are both electrically connected to the enable input EN of the boost module U2. The MCU model is F60E211. Upon receiving a high level output from the MCU's enable output, the enable input EN of the boost module U2 begins operation, thereby boosting the 3.2-4.2V voltage of the battery BAT1 to a constant DC6V voltage, thereby powering the automatic flush sensor and enabling the flushing action. In this embodiment, by adding the positive electrode of the battery BAT1 to the enable input EN of the boost module U2, the enable output of the MCU is pulled high, thereby ensuring that the boost module U2 can be stably triggered.

[0026] Preferably, the device further includes an LDO low-voltage dropout voltage regulator chip U1. The positive electrode of the battery BAT1 is electrically connected to the input terminal of the LDO low-voltage dropout voltage regulator chip U1, and the output terminal of the LDO low-voltage dropout voltage regulator chip U1 is electrically connected to the power input terminal of the MCU. The LDO low-voltage dropout voltage regulator chip U1 is HT7130 and can convert the 3.2-4.2V voltage of the battery BAT1 to 3V to power the MCU.

[0027] Specifically, the device also includes a ceramic capacitor C1, a TVS diode TVS1, and a diode D1. The output end of the hydroelectric generator is electrically connected to the positive electrode of the ceramic capacitor C1, the negative electrode of the TVS diode TVS1, and the positive electrode of the diode D1, respectively. The positive electrode of the ceramic capacitor C1 is grounded, the positive electrode of the TVS diode TVS1 is grounded, and the negative electrode of the diode D1 is electrically connected to the positive electrode of the battery BAT1. The ceramic capacitor C1 is used to filter out high-frequency interference components in the output voltage of the hydroelectric generator, the TVS diode TVS1 is used to discharge transient high-voltage components in the output voltage of the hydroelectric generator to prevent interference with or burning of subsequent charging and control circuits, and the diode D1 is used to prevent current backflow.

[0028] It also includes a light-emitting diode LED1, the positive pole of which is electrically connected to the output end of the hydroelectric generator, and the negative pole of which is grounded. The light-emitting diode LED1 is used as a power generation indication circuit. When the hydroelectric generator generates power normally to charge the circuit, the light-emitting diode LED1 will light up, indicating that power generation is normal.

[0029] It is worth noting that a battery protection chip U4 is also included. The power input terminal VDD of the battery protection chip U4 is electrically connected to the positive electrode of the battery BAT1, the port GND of the battery protection chip U4 is electrically connected to the negative electrode of the battery BAT1, and the port VM of the battery protection chip U4 is grounded. The model of the battery protection chip U4 is BRCL3230ME, which protects the battery BAT1 from overcharging and over-discharging.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. An automatic induction flush toilet circuit based on water self-generation, characterized by: Includes a hydroelectric generator, an automatic flushing sensor, a battery BAT1, an MCU, and a boost module U2; The output terminal of the hydroelectric generator is electrically connected to the positive electrode of the battery BAT1, the negative electrode of the battery BAT1 is grounded, the positive electrode of the battery BAT1 is electrically connected to the power input terminal of the MCU and the input terminal VIN of the boost module respectively, the enable output terminal of the MCU is electrically connected to the enable input terminal EN of the boost module, and the output terminal LX of the boost module is electrically connected to the automatic flush sensor; The water outlet of the hydroelectric generator is communicated with the water inlet of the toilet flush tank, and the water inlet of the hydroelectric generator is communicated with the water outlet of the tap water pipe.

2. The automatic induction flush toilet circuit based on water self-generation according to claim 1, characterized in that: The boost module U2 is a DC-DC boost chip. The input terminal VIN of the boost module U2 is electrically connected to the positive electrode of the battery BAT1 through a filter capacitor. The output terminal LX of the boost module U2 is electrically connected to the automatic flush sensor through a filter capacitor. The enable output terminal of the MCU and the positive electrode of the battery BAT1 are both electrically connected to the enable input terminal EN of the boost module U2.

3. The automatic induction flush toilet circuit based on water self-generation according to claim 1, characterized in that: It also includes an LDO low voltage difference voltage regulator chip U1. The positive electrode of the battery BAT1 is electrically connected to the input end of the LDO low voltage difference voltage regulator chip U1. The output end of the LDO low voltage difference voltage regulator chip U1 is electrically connected to the power input end of the MCU.

4. The automatic induction flush toilet circuit based on water self-generation according to claim 1, characterized in that: It also includes a ceramic capacitor C1, a TVS diode TVS1 and a diode D1. The output end of the hydroelectric generator is electrically connected to the positive electrode of the ceramic capacitor C1, the negative electrode of the TVS diode TVS1 and the positive electrode of the diode D1, respectively. The positive electrode of the ceramic capacitor C1 is grounded, the positive electrode of the TVS diode TVS1 is grounded, and the negative electrode of the diode D1 is electrically connected to the positive electrode of the battery BAT1.

5. The automatic induction flush toilet circuit based on water self-generation according to claim 1, characterized in that: It also includes a battery protection chip U4, a power input terminal VDD of the battery protection chip U4 is electrically connected to the positive electrode of the battery BAT1, a port GND of the battery protection chip U4 is electrically connected to the negative electrode of the battery BAT1, and a port VM of the battery protection chip U4 is grounded.

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