Water inlet control device of secondary water supply tank

Abstract

The utility model provides a water inlet control device of a secondary water supply tank, which effectively solves the problems that the safety of a storage battery is affected and the water level control of the secondary water supply tank is further affected due to the phenomenon that the charging current supplied to the storage battery by a generator cannot be accurately controlled in the conventional water level control mode of the secondary water supply tank. The control device further comprises a battery safety module and a mobile terminal, the battery safety module detects charging current provided for the storage battery by the water flow generator to obtain a current signal and obtains a reminding signal and an output current signal based on the current signal, and the output current signal is output to the storage battery. The reminding signal is output to the mobile terminal; and the battery safety module comprises a current output unit and an outward output unit, so that the safety of the storage battery is ensured, and the effect of accurately controlling the water level of the secondary water supply water tank is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary water supply equipment, in particular to a water inlet control device for a secondary water supply tank. Background Art

[0002] In order to provide a water tank intelligent water level control device that can conveniently adjust the water level depth of the water tank, and has the advantages of easy use and low cost, the Chinese utility model patent with application number 202121365558.1 provides "An intelligent water level control device for a secondary water supply tank", which can control the power output shaft steering of the motor reduction mechanism through the wireless transmitting circuit module and the wireless receiving circuit, and then control the depth of the water level probe in the water tank, and control the solenoid valve to stop water intake after the water tank reaches the predetermined water level. This new model can realize stepless depth control of the water tank water level, and does not require frequent installation and disassembly by the staff, which brings convenience to the staff, reduces the labor cost expenditure of the water supplier, and ensures safe water supply, achieving better results.

[0003] It also provides a more energy-saving method, which is to use the water flow generator to generate electricity when the water tank is filled with water and store it in the battery. However, the charging current provided by the generator to the battery is not a fixed value, but is determined by the water level in the water tank. When the water level in the water tank is low, the charging current provided to the battery is low, and when the water level in the water tank is high, the charging current provided to the battery is high. However, if the charging current is continuously greater than the rated charging current of the battery, it will also affect the safety of the battery, thereby affecting the battery's power supply to the motor and solenoid valve, and further affecting the water level control of the secondary water supply tank.

[0004] That is, the existing water level control method of the secondary water supply tank cannot accurately control the charging current provided by the generator to the battery, which affects the safety of the battery and further affects the water level control of the secondary water supply tank.

[0005] Therefore, the utility model provides a new solution to solve this problem. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a water inlet control device for a secondary water supply tank, which effectively solves the problem that the existing water level control method of the secondary water supply tank cannot accurately control the charging current provided to the battery by the generator, thereby affecting the safety of the battery and further affecting the water level control of the secondary water supply tank.

[0007] The technical solution is a secondary water supply tank water inlet control device, comprising a water flow generator and a battery. The control device also comprises a battery safety module and a mobile terminal. The battery safety module detects the charging current provided by the water flow generator to the battery to obtain a current signal, and obtains a reminder signal and an output current signal based on the current signal. The output current signal is output to the battery, and the reminder signal is output to the mobile terminal.

[0008] The battery safety module includes a current output unit and an external output unit;

[0009] One end of the current output unit is electrically connected to the water flow generator, and the other end of the current output unit is respectively connected to one end of the external output unit and the battery, and the other end of the external output unit is connected to the mobile terminal.

[0010] Furthermore, the current output unit obtains a current signal based on the current sensor detecting the charging current provided to the battery by the water flow generator, obtains a difference signal after performing a subtraction operation based on the current signal, and obtains an output current signal by attenuating the current signal based on the difference signal.

[0011] Furthermore, the current output unit attenuates the current signal according to the amplitude of the difference signal to obtain an output current signal.

[0012] Furthermore, the current output unit outputs a high level to the external output unit according to the amplitude of the difference signal.

[0013] Furthermore, the external output unit receives the high level output by the current output unit, and obtains the monitoring terminal based on the high level output reminder signal.

[0014] Furthermore, the external output unit performs a multiplication operation on the high level to obtain a reminder signal.

[0015] The utility model achieves the following beneficial effects:

[0016] The present application sets up a battery safety module for the water flow generator and battery in the secondary water supply tank, which is used to detect the charging current provided by the water flow generator to the battery, and control the charging current provided by the water flow generator to the battery to avoid the charging current provided by the water flow generator to the battery exceeding the rated charging current, causing irreversible damage to the battery; and when the charging current provided by the water flow generator to the battery is higher than the rated charging current continuously, the output current of the water flow generator is processed to ensure the safety of the battery, thereby ensuring the effect of accurately controlling the water level of the secondary water supply tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the framework of the utility model.

[0018] Figure 2 This is a circuit schematic diagram of the battery safety module of the present utility model. DETAILED DESCRIPTION

[0019] For the above and other technical contents, features and functions of the present invention, please refer to the following attached Figure 1-2 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0020] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0021] A secondary water supply tank water inlet control device, comprising a water flow generator and a battery, the control device further comprising a battery safety module and a mobile terminal, the battery safety module detecting the charging current provided by the water flow generator to the battery to obtain a current signal, obtaining a reminder signal and an output current signal based on the current signal, the output current signal being output to the battery, and the reminder signal being output to the mobile terminal;

[0022] The battery safety module includes a current output unit and an external output unit;

[0023] One end of the current output unit is electrically connected to the water flow generator, and the other end of the current output unit is respectively connected to one end of the external output unit and the battery, and the other end of the external output unit is connected to the mobile terminal.

[0024] The current output unit uses the current sensor U1 to collect the charging current provided by the water flow generator to the battery to obtain a current signal, wherein the current sensor U1 can be used as a Hall current sensor of model AHKC-EKBA. The current signal collected by the current sensor U1 is transmitted to the operational amplifier U3A via the resistor R10. The operational amplifier U3A subtracts the current signal from the rated charging current signal provided by the resistor R8 to obtain a difference signal of the two signals. When the difference signal is positive and the transistor Q1 is not turned on, it indicates that the charging current provided by the water flow generator to the battery at this time will not affect the safety of the battery, and no processing is required. When the difference signal is positive, the transistor Q1 is turned on. When the signal is negative and the transistor Q1 is turned on, it indicates that the charging current provided by the water flow generator to the battery is greater than the rated charging current, which will affect the safety of the battery. At this time, the transistor Q1 outputs a high level, and the high level turns on the diode D2, and the diode D2 turns on the relay K1, and the relay K1 closes the switch S1, and the current signal is output to the attenuator with the resistor R1, the resistor R6, the resistor R7, and the operational amplifier U4A as the core for attenuation, so that the amplitude of the current signal is attenuated to a value below the rated charging current, so that the attenuated current signal is used as the output current signal, and the output current signal is output to the battery, thereby ensuring the charging safety of the battery;

[0025] The current output unit includes a resistor R10, one end of which is connected to the out pin of the current sensor U1, the vcc pin of the current sensor U1 is respectively connected to one end of the resistor R8, one end of the resistor R3, the emitter of the transistor Q1 and the positive polarity power supply VCC, the other end of the resistor R10 is respectively connected to the inverting end of the operational amplifier U3A, one end of the resistor R2, and one end of the switch S1, the in-phase end of the operational amplifier U3A is respectively connected to one end of the resistor R5 and one end of the resistor R8, the output end of the operational amplifier U3A is respectively connected to the other end of the resistor R2, the other end of the resistor R3, and the base of the transistor Q1, and the collector of the transistor Q1 is connected to the chalk. One end of the resistor R4 and the positive electrode of the diode D2 are connected, the negative electrode of the diode D2 is connected to one end of the relay K1, the other end of the switch S1 is respectively connected to one end of the resistor R1 and one end of the resistor R6, the other end of the resistor R1 is respectively connected to one end of the resistor R7 and the in-phase end of the operational amplifier U4A, the inverting end of the operational amplifier U4A is respectively connected to one end of the resistor R9 and one end of the resistor R12, the output end of the operational amplifier U4A is respectively connected to the battery and the other end of the resistor R9, the other end of the relay K1 is respectively connected to the other end of the resistor R4, the other end of the resistor R5, the other end of the resistor R6, the other end of the resistor R7, the other end of the resistor R12 and the ground.

[0026] The external output unit also receives the high level output by the current output unit through the diode D2, and the high level is output to the delay device composed of the resistor R11 and the capacitor C1 through the 2nd pin of the switch S2 and the connected 3rd pin, and the delay device outputs the high level to the multiplier V1 with a time delay, and the delayed high level turns on the relay K2, and the relay K2 switches the pin switch of the switch S2, and the 2nd pin of the switch S2 is disconnected from the 3rd pin and connected to the 1st pin, and the high level output by the current output unit through the diode D2 is output to the 2nd pin of the multiplier V1 through the 2nd pin of the switch S2 and the connected 3rd pin, and the multiplier V1 multiplies the delayed high level with the high level obtained again, and the multiplier V1 outputs a reminder signal to the mobile terminal, and the mobile terminal is a portable communication device such as a walkie-talkie and a mobile phone, so as to remind the staff to adjust the charging current provided to the battery by the water flow generator to ensure the charging safety of the battery;

[0027] The external output unit includes a switch S2, wherein the 2nd pin of the switch S2 is respectively connected to the negative electrode of the diode D2 of the current output unit and one end of the relay K1, the 1st pin of the switch S2 is connected to the 2nd pin of the multiplier V1, the 1st pin of the multiplier V1 is respectively connected to one end of the resistor R11 and one end of the capacitor C1, the output end of the multiplier V1 is connected to the mobile terminal, the other end of the resistor R11 is connected to the 3rd pin of the switch S2, the other end of the capacitor C1 is respectively connected to the other end of the relay K2 and the other end of the relay K1 in the current output unit and connected to the ground.

[0028] For example, in actual use, the current signal collected by the current output unit is 4V, and a 1V difference signal is obtained by subtracting the rated charging current signal of 3V through the operational amplifier U3A. The difference signal turns on the transistor Q1, and the transistor Q1 outputs a high level. The high level turns on the relay K1, and the relay K1 closes the switch S1. The attenuator with resistor R1, resistor R6, resistor R7, and operational amplifier U4A as the core attenuates the current signal to 2.5V, and then outputs the 2.5V current signal as the output current signal to the battery. At the same time, the external output unit outputs the high level through the 2nd and 3rd pins of the switch S2 through the resistor R11 and the capacitor C1 after delay to the multiplier V1. After receiving two high levels, the pins and 2 of the multiplier V1 output a reminder signal to the mobile terminal.

[0029] When the utility model is in use, the battery safety module includes a current output unit and an external output unit; the current output unit uses the current sensor U1 to collect the charging current provided by the water flow generator to the battery to obtain a current signal, and the current signal collected by the current sensor U1 is transmitted to the operational amplifier U3A through the resistor R10. The operational amplifier U3A subtracts the current signal from the rated charging current signal provided by the resistor R8 to obtain a difference signal between the two signals. When the difference signal is a negative value and the transistor Q1 is turned on, the transistor Q1 outputs a high level at this time, and the high level turns on the diode D2, the diode D2 turns on the relay K1, and the relay K1 closes the switch S1, and the current signal is output to the attenuator with the resistor R1, the resistor R6, the resistor R7, and the operational amplifier U4A as the core for attenuation, thereby attenuating the amplitude of the current signal to a value below the rated charging current, so that the attenuated current signal is used as the output current signal, and the output The output current signal is output to the battery, thereby ensuring the charging safety of the battery; the outward output unit also receives the high level output by the current output unit through the diode D2, and the high level is output to the delay device composed of the resistor R11 and the capacitor C1 through the 2nd pin of the switch S2 and the connected 3rd pin, and the delay device delays the output of the high level to the multiplier V1, and the delayed high level turns on the relay K2, and the relay K2 switches the pin switch of the switch S2, then the 2nd pin of the switch S2 is disconnected from the 3rd pin and connected to the 1st pin, then the high level output by the current output unit through the diode D2 is output to the 2nd pin of the multiplier V1 through the 2nd pin of the switch S2 and the connected 3rd pin, and the multiplier V1 multiplies the delayed high level with the high level obtained again, and the multiplier V1 outputs a reminder signal to the mobile terminal, thereby reminding the staff to adjust the charging current provided to the battery by the water flow generator to ensure the charging safety of the battery.

[0030] The utility model achieves the following beneficial effects:

[0031] (1) The present application sets up a battery safety module for the water flow generator and battery in the secondary water supply tank, which is used to detect the charging current provided by the water flow generator to the battery, and to control the charging current provided by the water flow generator to the battery, so as to avoid the charging current provided by the water flow generator to the battery exceeding the rated charging current, thereby causing irreversible damage to the battery. When the charging current provided by the water flow generator to the battery is higher than the rated charging current continuously, the output current of the water flow generator is processed to ensure the safety of the battery, thereby ensuring the effect of accurately controlling the water level of the secondary water supply tank.

[0032] (2) The battery safety module provided in the present application includes a current output unit, which performs a subtraction operation on the charging current output by the water flow generator to the battery based on the operational amplifier U3A, and determines whether it is necessary to attenuate the charging current output by the water flow generator to the battery based on the transistor Q1, thereby ensuring the safety of the battery and further accurately controlling the water level of the secondary water supply tank.

[0033] (3) The battery safety module provided in the present application includes an external output unit, which is based on the multiplier V1, the relay K2 and the switch S2 to count whether the current output unit outputs a high level twice in succession, that is, whether there is a continuous need to attenuate the current provided to the battery. In this case, the output of the water flow generator is controlled to further ensure the safety of the battery.

Claims

1. A secondary water supply tank water inlet control device, comprising a water flow generator and a battery, characterized in that: The control device further comprises a battery safety module and a mobile terminal, wherein the battery safety module detects the charging current provided by the water flow generator to the storage battery, obtains a current signal, obtains a reminder signal and an output current signal based on the current signal, the output current signal is output to the storage battery, and the reminder signal is output to the mobile terminal; The battery safety module includes a current output unit and an external output unit; One end of the current output unit is electrically connected to the water flow generator, and the other end of the current output unit is respectively connected to one end of the external output unit and the battery, and the other end of the external output unit is connected to the mobile terminal.

2. The secondary water supply tank water inlet control device according to claim 1, characterized in that: The current output unit detects the charging current provided to the battery by the water flow generator based on the current sensor to obtain a current signal, performs a subtraction operation based on the current signal to obtain a difference signal, and attenuates the current signal based on the difference signal to obtain an output current signal.

3. The secondary water supply tank water inlet control device according to claim 2, characterized in that: The current output unit attenuates the current signal according to the amplitude of the difference signal to obtain an output current signal.

4. The secondary water supply tank water inlet control device according to claim 2, characterized in that: The current output unit outputs a high level to the external output unit according to the amplitude of the difference signal.

5. The secondary water supply tank water inlet control device according to claim 4, characterized in that: The external output unit receives the high level output by the current output unit, and obtains the monitoring terminal based on the high level output reminder signal.

6. The secondary water supply tank water inlet control device according to claim 5, characterized in that: The external output unit performs a multiplication operation on the high level to obtain a reminder signal.

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